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1

Deshpande, Anup S. "Computer Joystick Control and Vehicle Tracking System in Electric Vehicles." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1282569869.

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2

Wu, Tahchang Jimmy. "Simulation and analysis of the control system of the hybrid vehicle." Ohio : Ohio University, 1989. http://www.ohiolink.edu/etd/view.cgi?ohiou1182180337.

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3

Al, Swailem Salah I. "Application of robust control in unmanned vehicle flight control system design." Thesis, Cranfield University, 2004. http://hdl.handle.net/1826/136.

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The robust loop-shaping control methodology is applied in the flight control system design of the Cranfield A3 Observer unmanned, unstable, catapult launched air vehicle. Detailed linear models for the full operational flight envelope of the air vehicle are developed. The nominal and worst-case models are determined using the v-gap metric. The effect of neglecting subsystems such as actuators and/or computation delays on modelling uncertainty is determined using the v-gap metric and shown to be significant. Detailed designs for the longitudinal, lateral, and the combined full dynamics TDF controllers were carried out. The Hanus command signal conditioning technique is also implemented to overcome actuator saturation and windup. The robust control system is then successfully evaluated in the high fidelity 6DOF non-linear simulation to assess its capability of launch stabilization in extreme cross-wind conditions, control effectiveness in climb, and navigation precision through the prescribed 3D flight path in level cruise. Robust performance and stability of the single-point non-scheduled control law is also demonstrated throughout the full operational flight envelope the air vehicle is capable of and for all flight phases and beyond, to severe launch conditions, such as 33knots crosswind and exaggerated CG shifts. The robust TDF control law is finally compared with the classical PMC law where the actual number of variables to be manipulated manually in the design process are shown to be much less, due to the scheduling process elimination, although the size of the final controller was much higher. The robust control law performance superiority is demonstrated in the non-linear simulation for the full flight envelope and in extreme flight conditions.
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4

Hamersma, H. A. (Herman Adendorff). "Longitudinal vehicle dynamics control for improved vehicle safety." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/40829.

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An autonomous vehicle is a vehicle that is capable of navigating and driving with no human intervention whatsoever through the utilization of various sensors and positioning systems. The possible applications of autonomous vehicles are widespread, ranging from the aerospace industry to the mining and military sectors where the exposure of human operators to the operating conditions is hazardous to their health and safety. Automobile accidents have become the leading cause of death in certain segments of the world population. Removing the human driver from the decision-making process through automation may result in significantly safer highways. Although full autonomy may be the ultimate goal, there is huge scope for systems that aid the driver in decision making or systems that take over from the driver under conditions where the human driver fails. The aim of the longitudinal control system to be implemented on the Land Rover test vehicle in this study is to improve the vehicle’s safety by controlling the vehicle’s longitudinal behaviour. A common problem with sports-utility-vehicles is the low rollover threshold, due to a high centre of gravity. Rather than modifying the vehicle to increase the rollover threshold, the aim of the control system presented here is to prevent the vehicle from exceeding speeds that would cause the vehicle to reach its rollover threshold. In order to develop a control system that autonomously controls the longitudinal degree of freedom, a model of the test vehicle (a 1997 Land Rover Defender 110 Wagon) was developed in MSC.ADAMS/View and validated experimentally. The model accurately captures the response of the test vehicle to supply forces as generated by the engine and demand forces applied through drag, braking and engine braking. Furthermore, the model has been validated experimentally to provide reliable simulation results for lateral and vertical dynamics. The control system was developed by generating a reference speed that the vehicle must track. This reference speed was formulated by taking into account the vehicle’s limits due to lateral acceleration, combined lateral and longitudinal acceleration and the vehicle’s performance capabilities. The control system generates the desired throttle pedal position, hydraulic pressure in the brake lines, clutch position and gear selection as output. The MSC.ADAMS\View model of the test vehicle was used to evaluate the performance of the control system on various racetracks of which the GPS coordinates were available. The simulation results indicate that the control system performs as expected. Finally, the control system was implemented on the test vehicle and the performance was evaluated by conducting field tests in the form of a severe double lane change manoeuvre. The results of the field tests indicated that the control system limited the acceleration vector of the vehicle’s centre of gravity to prescribed limits, as predicted by the simulation results.
Dissertation (MEng)--University of Pretoria, 2013.
gm2014
Mechanical and Aeronautical Engineering
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5

Azzeh, Abdel Rahman. "CAN Control System for an Electric Vehicle." Thesis, University of Canterbury. Electrical and Computer Engineering, 2007. http://hdl.handle.net/10092/1127.

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The University of Canterbury has purchased a 1992 Toyota MR2 and used it as the platform to construct a new electric car. Similar to the common combustion engine vehicle, electric vehicles require control systems to control the operation of 12Vdc auxiliary loads, such as lights, indicators and windscreen wipers, where traditional technology results in a large number of wires in the wiring harness. Also, with the added complexity of modern vehicles, the need for integrating independent control systems together has become very important in providing safer and more efficient vehicles. To reduce the number of wires and make it possible for different control systems to communicate, and so perform more complex tasks, a flexible and reliable control system is used. The CAN (Controller Area Network) control system is a simple two-wire differential serial bus system, which was developed by Bosch for automotive applications in the early 1980s. The power and control system within the vehicle is named the "Power Distribution Network" and it is implemented by using multiple power converters and the CAN control system. This thesis presents the design, implementation, and test results of the CAN control system for the MR2. The 312Vdc nominal battery voltage is converted to an intermediate voltage of 48Vdc. This configuration is considered more efficient than the usual 12Vdc distribution system since smaller and lighter wires can be used to carry the same amount of power. The power distribution network operates off the 48Vdc intermediate voltage, and provides 12Vdc output to power all auxiliaries within the vehicle. The Power Distribution Network is implemented with two major subsystems: the auxiliary power system, which consists of multiple converters to step-down voltage from the 48Vdc intermediate voltage to the 12Vdc, and the CAN control system, which is developed to control and integrate the 12Vdc auxiliary loads within the vehicle. The prototype CAN control system is fully operational and has been tested with 12Vdc loads which are used to simulate most of the auxiliary loads in the vehicle. Experimental measurements show that the prototype is able to successfully control and maintain the network of independent nodes. This confirms that in principle the CAN control system is suitable for controlling the auxiliary loads in an electric vehicle.
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6

Yatsko, Margaret Jane. "Development of a Hybrid Vehicle Control System." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1459890202.

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7

Kirsch, Patricia Jean. "Autonomous swarms of unmanned vehicles software control system and ground vehicle testing /." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/2993.

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Thesis (M.S.) -- University of Maryland, College Park, 2005.
Thesis research directed by: Dept. of Electrical and Computer Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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8

Sharma, Aman. "System Identification of a Micro Aerial Vehicle." Thesis, Luleå tekniska universitet, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-73070.

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The purpose of this thesis was to implement an Model Predictive Control based system identification method on a micro-aerial vehicle (DJI Matrice 100) as outlined in a study performed by ETH Zurich. Through limited test flights, data was obtained that allowed for the generation of first and second order system models. The first order models were robust, but the second order model fell short due to the fact that the data used for the model was not sufficient.
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9

Spejcher, Clint. "A comprehensive fleet risk control system for Bill's Distributing." Online version, 1998. http://www.uwstout.edu/lib/thesis/1998/1998spejcherc.pdf.

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10

Gao, Jianmin. "Control and simulation of an active suspension system." Thesis, University of Wolverhampton, 1997. http://hdl.handle.net/2436/97364.

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11

Kang, Yong Suk. "Development of Predictive Vehicle Control System using Driving Environment Data for Autonomous Vehicles and Advanced Driver Assistance Systems." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/85106.

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In the field of modern automotive engineering, many researchers are focusing on the development of advanced vehicle control systems such as autonomous vehicle systems and Advanced Driver Assistance Systems (ADAS). Furthermore, Driver Assistance Systems (DAS) such as cruise control, Anti-Lock Braking Systems (ABS), and Electronic Stability Control (ESC) have become widely popular in the automotive industry. Therefore, vehicle control research attracts attention from both academia and industry, and has been an active area of vehicle research for over 30 years, resulting in impressive DAS contributions. Although current vehicle control systems have improved vehicle safety and performance, there is room for improvement for dealing with various situations. The objective of the research is to develop a predictive vehicle control system for improving vehicle safety and performance for autonomous vehicles and ADAS. In order to improve the vehicle control system, the proposed system utilizes information about the upcoming local driving environment such as terrain roughness, elevation grade, bank angle, curvature, and friction. The local driving environment is measured in advance with a terrain measurement system to provide terrain data. Furthermore, in order to obtain the information about road conditions that cannot be measured in advance, this work begins by analyzing the response measurements of a preceding vehicle. The response measurements of a preceding vehicle are acquired through Vehicle-to-Vehicle (V2V) or Vehicle-to-Infrastructure (V2I) communication. The identification method analyzes the response measurements of a preceding vehicle to estimate road data. The estimated road data or the pre-measured road data is used as the upcoming driving environment information for the developed vehicle control system. The metric that objectively quantifies vehicle performance, the Performance Margin, is developed to accomplish the control objectives in an efficient manner. The metric is used as a control reference input and continuously estimated to predict current and future vehicle performance. Next, the predictive control algorithm is developed based on the upcoming driving environment and the performance metric. The developed system predicts future vehicle dynamics states using the upcoming driving environment and the Performance Margin. If the algorithm detects the risks of future vehicle dynamics, the control system intervenes between the driver's input commands based on estimated future vehicle states. The developed control system maintains vehicle handling capabilities based on the results of the prediction by regulating the metric into an acceptable range. By these processes, the developed control system ensures that the vehicle maintains stability consistently, and improves vehicle performance for the near future even if there are undesirable and unexpected driving circumstances. To implement and evaluate the integrated systems of this work, the real-time driving simulator, which uses precise real-world driving environment data, has been developed for advanced high computational vehicle control systems. The developed vehicle control system is implemented in the driving simulator, and the results show that the proposed system is a clear improvement on autonomous vehicle systems and ADAS.
Ph. D.
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12

Zhu, Yongjie. "Constrained nonlinear model predictive control for vehicle regulation." Columbus, Ohio : Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1222177849.

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13

Bromand, Homan. "Hybrid Control System for Reversing a Multibody Vehicle." Thesis, KTH, Reglerteknik, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-109484.

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This thesis deals with the problem of prototyping a vehicle, made up by a motorized body and two passive trailers using LOGO Mindstorms, and provide a hybrid control system supporting the driver while reversing the vehicle. The goal of the hybrid system is to switch between different linear controllers, each designed for a specific purpose, to follow a generic path. The approach, when designing the hybrid system, is similar to Dubin’s car problem. The prototype will be designed to perform as a stand-alone system and be controlled by its own computer. Information about the instant condition of the vehicle is collected by means of a set of onboard sensors. Two angle sensors are used to measure the relative angles between the different parts of the structure, one rotation sensor is used to measure the steering wheel angle and two rotation sensors are used to transform the wheel’s revolution into orientation of a specific point of the vehicle. The implementation of the controller consist in a java-program written on a host computer and then downloaded to a robotics command explorer (RCX), equipped with an input-output board that allows to generate the control signal and acquire data from sensors.
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14

Li, Zhijun. "Vehicle merging control for an automated highway system." Diss., Virginia Tech, 1996. http://hdl.handle.net/10919/40048.

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This research presents theoretically an automated vehicle merging control which is an important subsystem of AHS. The goal of the system is to automatically control the vehicle merging from ramp to the AHS lane in an efficient, smooth and safe manner. The entire merging process is divided the a speed adjustment stage and a lane merging stage. Three important parameters; acceptability, availability and pursuability are analyzed to characterize the AHS lane gap features. Three control guidance laws (linear, optimal and parabolic speed profile) are developed to describe the desired behaviors of the merging vehicle based on the merging quality and safety consideration. The desired states of the merging vehicle are generated through the outer loop by specified control guidance law. The tracking errors compared with desired states are eliminated by the proper design of controllers in the inner loop. Both longitudinal and lateral controller are designed using the sliding mode control theory which can handle the model nonlinearities and uncertainties of the vehicle dynamics. Two new sliding mode methods are proposed in the design of the lateral controller. The proposed system is evaluated and validated through computer simulations. The simulation results show that system performance is satisfactory under the various merging conditions for a smooth, efficient and safe merging. The system also supplies a basis for the further research on the multiple merging control system and the lane changing control system.
Ph. D.
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15

Palomeras, Rovira Narcís. "A mission control system for an autonomous underwater vehicle." Doctoral thesis, Universitat de Girona, 2011. http://hdl.handle.net/10803/69957.

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The presented work focuses on the theoretical and practical aspects concerning the design and development of a formal method to build a mission control system for autonomous underwater vehicles bringing systematic design principles for the formal description of missions using Petri nets. The proposed methodology compounds Petri net building blocks within it to de_ne a mission plan for which it is proved that formal properties, such as reachability and reusability, hold as long as these same properties are also guaranteed by each Petri net building block. To simplify the de_nition of these Petri net blocks as well as their composition, a high level language called Mission Control Language has been developed. Moreover, a methodology to ensure coordination constraints for teams of multiple robots as well as the de_nition of an interface between the proposed system and an on-board planner able to plan/replan sequences of prede_ned mission plans is included as well. Results of experiments with several real underwater vehicles and simulations involving an autonomous surface craft and an autonomous underwater vehicles are presented to show the system's capabilities.
El treball presentat en aquesta tesi està centrat en el disseny i desenvolupament d'un mètode formal per a construir un sistema de control de missió per a vehicles submarins autònoms, que aporta principis sistemàtics de disseny per a la descripció formal de missions. La metodologia proposada parteix d'uns blocs elementals de construcció, descrits mitjançant xarxes de Petri. La composició d'aquests blocs entre si genera un pla de missió per el qual diverses propietats, com ara accessibilitat o reutilització, són garantides sempre i quan aquestes mateixes propietats siguin també garantides per a cada un dels blocs elementals de construcció. Per simplificar la definició d'aquests blocs, així com per simplificar-ne la seva composició, s'ha desenvolupat un llenguatge d'alt nivell anomenat Mission Control Language. A més, s'ha inclòs una metodologia per assegurar la coordinació de restriccions entre equips de múltiples robots. També s'ha establert una interfície entre el sistema proposat i un planificador a bord del vehicle capaç de planificar/replanificar seqü_encies de plans de missió prèviament definits. Per tal de demostrar les capacitats del sistema, s'han presentat resultats d'experiments amb diversos vehicles submarins reals, així com simulacions amb vehicles autònoms submarins i en superfície.
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16

Sermeno, Mena Salvador. "Vehicle thermal management control systems." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0052.

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Les systèmes de refroidissement des véhicules continuent à se développer et devenir de plus en plus complexes. Ceci introduit des nouveaux problèmes dus aux interactions des composants et les perturbations du système. Avec la montée des prix des carburants; les développeurs et les compagnies cherchent à améliorer la consommation en respectant les normes d’émission. Une partie de l’énergie produite par le moteur est utilisé par les composants du circuit de refroidissement. L’utilisation d’auxiliaires électriques est une manière de réduire ces pertes parasites, mais ce n’est pas la seule solution. Des études récents proposent que un control plus adaptes des composants peux réduire la consommation de carburant. Actuellement, le groupe Volvo en essayant d’améliorer la performance du système de refroidissement des camions a installe des nouveaux composants pour la gestion thermique du moteur. Néanmoins, des problèmes ont été identifie lors d’essais véhicule. Une meilleure compréhension du système et de l’implémentation de composants est nécessaire pour limiter les effets non voulus. Le système de refroidissement d’un poids lourd a été étudié grâce à l’outil Bond Graph. Puis des nouvelles stratégies de control sont introduites : commande prédictive, commande par platitude, commande sans model et commande avec model réduit. Ces méthodes ont été implémentées dans une plateforme de simulation sur Matlab/Simulink. Les gains de consommation obtenue à partir de simulations sont entre 0.5 et 0.9%. Une analyse structurelle de l’architecture actuelle est présentée. D’après les conclusions de cette analyse, des propositions pour la modification de l’architecture du circuit sont évalués
The increasing complexity of engine cooling systems results in added interactions and disturbances to the performance. Besides, non-propulsion loads (fan, water pump…) draw a significant percentage of the engine’s power thus lowering the vehicle’s fuel efficiency. Recent studies have shown that by controlling components the efficiency can be improved by adjusting fan speed according to cooling needs, coolant flow, and oil flow. Currently, the Volvo group in order to optimize the performance of their truck’s cooling systems had installed new thermal management components. However, problems were found while testing control strategies and a better understanding of the interaction between components is required to prevent this from happening again. In this work, the bond graph approach has been applied for the study of the cooling system of a Heavy duty vehicle and has enabled subsystem interactions to be identified. Based on a simplified model issued from the bond graph, several control strategies have been built. These controllers are based on different control approaches: model predictive control, flatness control, model free control and model free control with reduced order model. These controllers were implemented in a simulation platform in the Matlab/Simulink environment. Results of the implementation of the new advanced control strategies are given. Fuel economy gains ranged between 0.5 and 0.9 %. A structural analysis of the current architecture is also proposed aiming at the optimization of the system. Given the insights from the analysis, an assessment of new concepts for the cooling system architecture is proposed
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17

Chen, Qi. "Studies in autonomous ground vehicle control systems structure and algorithms /." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1165959992.

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18

Guan, Wenyang. "Adaptive QoS control of DSRC vehicle networks for collaborative vehicle safety applications." Thesis, Swansea University, 2013. https://cronfa.swan.ac.uk/Record/cronfa42507.

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Road traffic safety has been a subject of worldwide concern. Dedicated short range communications (DSRC) is widely regarded as a promising enabling technology for collaborative safety applications (CSA), which can provide robust communication and affordable performance to build large scale CSA system. The main focus of this thesis is to develop solutions for DSRC QoS control in order to provide robust QoS support for CSA. The first design objective is to ensure robust and reliable message delivery services for safety applications from the DSRC networks. As the spectrum resources allocated to DSRC network are expected to be shared by both safety and non-safety applications, the second design objective is to make QoS control schemes bandwidth-efficient in order to leave as much as possible bandwidth for non-safety applications. The first part of the thesis investigates QoS control in infrastructure based DSRC networks, where roadside access points (AP) are available to control QoS control at road intersections. After analyse DSRC network capabilities on QoS provisioning without congestion control, we propose a two-phases adaptive QoS control method for DSRC vehicle networks. In the first phase an offline simulation based approach is used to and out the best possible system configurations (e.g. message rate and transmit power) with given numbers of vehicles and QoS requirements. It is noted that with different utility functions the values of optimal parameters proposed by the two phases centralized QoS control scheme will be different. The conclusions obtained with the proposed scheme are dependent on the chosen utility functions. But the proposed two phases centralized QoS control scheme is general and is applicable to different utility functions. In the second phase, these configurations are used online by roadside AP adaptively according to dynamic traffic loads. The second part of the thesis is focused on distributed QoS control for DSRC networks. A framework of collaborative QoS control is proposed, following which we utilize the local channel busy time as the indicator of network congestion and adaptively adjust safety message rate by a modified additive increase and multiplicative decrease (AIMD) method in a distributed way. Numerical results demonstrate the effectiveness of the proposed QoS control schemes.
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MacArthur, Erica Zawodny. "Compliant formation control of an autonomous multiple vehicle system." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0017508.

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20

Dai, Huiguang. "Dynamic behavior of maglev vehicle/guideway system with control." Case Western Reserve University School of Graduate Studies / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1117563035.

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21

Cloutier, Michael John. "Guidance and control system for an Autonomous Underwater Vehicle." Thesis, Monterey, California. Naval Postgraduate School, 1990. http://hdl.handle.net/10945/30635.

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Approved for public release, distribution is unlimited
The Naval Postgraduate School (NPS) is currently involved in a long-term project to investigate and develop real-time control software, artificial intelligence, computer architecture and control systems theory as they pertain to U.S. Navy autonomous vehicle programs. In support of this goal, the NPS is currently designing and fabricating a testbed autonomous underwater vehicle. This work describes the design, development, and testing of a Guidance Subsystem for this testbed vehicle which uses portions of cubic spirals as the desired path to follow between waypoints. In addition, data translation firmware and real-time software for the control surfaces and main motors is designed, implemented and tested. The process of selecting and implementing an appropriate computer architecture in support of these goals is also discussed and detailed, along with the choice of associated computer hardware and real-time operating system software.
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Midha, Raj Chander 1977. "Path following control system for a small autonomous vehicle." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/89321.

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23

Wanner, Daniel, Trigell Annika Stensson, Lars Drugge, and Jenny Jerrelind. "Survey on fault-tolerant vehicle design." KTH, Farkost och flyg, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-98811.

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Fault-tolerant vehicle design is an emerging inter-disciplinary research domain, which is of increasedimportance due to the electrification of automotive systems. The goal of fault-tolerant systems is to handleoccuring faults under operational condition and enable the driver to get to a safe stop. This paperpresents results from an extended survey on fault-tolerant vehicle design. It aims to provide a holisticview on the fault-tolerant aspects of a vehicular system. An overview of fault-tolerant systems in generaland their design premises is given as well as the specific aspects related to automotive applications. Thepaper highlights recent and prospective development of vehicle motion control with integrated chassiscontrol and passive and active fault-tolerant control. Also, fault detection and diagnosis methods arebriefly described. The shift on control level of vehicles will be accompanied by basic structural changeswithin the network architecture. Control architecture as well as communication protocols and topologiesare adapted to comply with the electrified automotive systems. Finally, the role of regulations andinternational standardization to enable fault-tolerant vehicle design is taken into consideration.

Qc 20120730

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Soukka, Erik. "Chassis Design of a Control Pod for a Kite Power System." Thesis, KTH, Marina system, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-240262.

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This is the report of a master thesis in light weight design of a component in a system that harnesses wind power with a kite. The thesis is a degree project in Naval Architecture at KTH with the course code SD271X. The design work is mostly of a structural nature, but systems engineering, and conceptual design is also a major part of thestudy. The first part introduces the problem where the client, SkySails Power GmbH, is looking to design a new control pod for a system that carries 3 times the load as a previous design. The thesis is limited to the design of the load bearing chassis of the pod, but because at the time the other sub systems or components have not yetbeen designed, the study includes concept design of the entire pod system. The flight pattern and load cases of the kite are studied to get the right understanding of the forces that affect the system. The goal is to design achassis that is as affordable, light weight, and as strong as needed for the task.The requirements of the design problem are decided by the master student and the client together after a prestudy was made but they had minor changes further along the design process. It is a real life, organic iterative design process that has a goal from the start to use the opportunity of an outsider to reconsider the design of akey component of the client’s product.The result is a chassis design that is cheaper to produce and weighs less than if the old chassis would be linearly scaled up with the loads. This design has the same concept as the last but with a couple of modifications concerning some attachments to the rest of the system. The requirement of maintaining all previous functionsis achieved. A significant part of the thesis was to determine the boundaries between the areas of where FEM modelling is applicable and where hand calculations estimations are necessary. The results from this work will be used to build a prototype of the chassis, test it in a tensile testing machine, and finally integrate it into theentire system and flown.
I en värld som hotas av klimatförändringar på grund av utsläppen av fossila bränslen i atmosfären, men där människorna som befolkar den har ett stort behov av energi för sin livsstil finns det ett behov av alternativa källor och metoder till att utvinna den. Ett relativt nytt och hållbart sätt till detta är kite-baserad vindkraft. Mananvänder sig av en skärm eller drake, lite som en fallskärm fast i större storlek, som är kopplad med en vajer till en bas-station där vajern rullas upp på en trumma. Skärmen fungerar som en vinge och skapar ett lyft när den flyger i kors-vind och rullar ut vajern på trumman som fungerar samtidigt som en elektrisk generator. Alternativtlåter man skärmen ha ett konstant avstånd och har bas-stationen installerad på ett fartyg och använder lyftet från skärmen till att driva fram fartyget.Ett av företagen som arbetar med att få denna teknik lönsammare än konventionell vindkraft i vissa väder och geografiska lägen är SkySails som gav i uppdrag som examensarbete att utveckla en ny modell av chassit till styrenheten till sitt kite-system. Styrenhetens ligger mellan skärmen och vajern och har som huvudfunktion attstyra draken som görs med en mindre elektrisk motor och ett tandat bälte. Dessutom innehåller styrenheten mycket elektronik och sensorer vilket gör utvecklingen till ett komplext problem. Studentens två huvuduppgifter var göra en konceptuell utvecklingsstudie av hela styrenheten och att utveckla ett chassi, till ett stadie att dengår att tillverka från ritningar, för det mest framgångsrika konceptet. Chassit måste tåla hela skärmens laster och kosta och väga så lite som möjligt.Designprocessen var iterativ med ett systemingenjörsmässigt angreppssätt. Första delen av tiden ägnades åt att studera den befintliga styrenheten och lära sig om hela kite-teknologin. Sedan sattes tydligare och mätbara mål och specifikationer tillsammans med uppdragsgivaren. Därefter började den kreativa fasen och skissa fram bådekonventionella och okonventionella koncept för hela styrenheten. De tre mest lovande koncepten utvärderades mot de tidigare satta kriterierna så kvantifierbart som möjligt och det visade sig att det koncept som hade används var fortfarande det bästa. Sista fasen av arbetet var att sätta gränssnittet för chassit i detta koncept ochdesigna chassit så lätt som möjligt.Resultatet blev ett liknande chassi jämfört med vad det var innan men med en vikt som var lägre än om det förra chassit hade ökat sin vikt lika mycket som lastökningen. Kostnaden för chassitillverkningen gick ner i absoluta termen på grund av byte av material och tillverkningsmetod. Av detta kan man påstå att examensarbetet varframgångsrikt och nådde sina mål. Däremot måste en prototyp tillverkas testas i för att fastställa att modellerna som tog fram designen motsvarar verkligheten. Dessutom måste de andra komponenterna tillverkas i för att hela styrenheten kunna testas så som den är avsedd att användas. Chassit och styrenheten är bara ett steg på vägentill en hållbarare värld men metoderna som användes kan återanvändas.
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25

Zaidi, Syed Jamal Haider. "Fast fault isolation for embedded control system in vehicle networks /." Göteborg : Department of Applied Information Technology, IT University of Göteborg, Göteborg University and Chalmers University of Technology, 2006. http://www.ituniv.se/w/index.php?option=com_itu_thesis&Itemid=319.

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26

You, Kyuhyong. "The control system design of an omni-directional vehicle platform." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024642.

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27

Kandasamy, Jaya Kumar. "Stabilization system for camera control on an unmanned surface vehicle." Thesis, Monterey, Calif. : Naval Postgraduate School, 2008. http://edocs.nps.edu/npspubs/scholarly/theses/2008/Dec/08Dec%5FKandasamy.pdf.

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Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, December 2008.
Thesis Advisor(s): Healey, Anthony J. "December 2008." Description based on title screen as viewed on January 29, 2009. Includes bibliographical references (p. 33). Also available in print.
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28

Boje, E. P., and B. J. Kotze. "An integrated control system for an Automatic Guided Vehicle (AGV)." Interim : Interdisciplinary Journal, Vol 7, Issue 1: Central University of Technology Free State Bloemfontein, 2008. http://hdl.handle.net/11462/376.

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Published Article
An immense amount of research is currently, being done on the development and use of Automatic Guided Vehicles (AGVs) in industry. An important component of this research often involves navigation and route-optimization of such AGVs. In this paper the design and control of an AGV, using a stationary control system and a GPS-like navigational system, is discussed. Substantial provision has also been made for the display of operational characteristics of the AGV on the stationary control unit.
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29

Kaba, Mohamed. "Controlled Autonomous Vehicle Drift Maneuvering." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1557195355216909.

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30

Aspnes, Richard K., and Russell J. Yuma. "MMTS: Multi-Vehicle Metric & Telemetry System." International Foundation for Telemetering, 1988. http://hdl.handle.net/10150/615244.

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International Telemetering Conference Proceedings / October 17-20, 1988 / Riviera Hotel, Las Vegas, Nevada
The Multi-Vehicle Metric & Telemetry System (MMTS) is a complete range system which performs real-time tracking, command destruct, and telemetry processing functions for support of range safety and the test and evaluation of airborne vehicles. As currently configured, the MMTS consists of five hardware and software subsystems with the capability to receive, process, and display tracking data from up to ten range sensors and telemetry data from two instrumented vehicles. During a range operation, the MMTS is employed to collect, process, and display tracking and telemetry data. The instrumentation sites designated for operational support acquire tracking and telemetered data and transmit these data to the MMTS. The raw data is then identified, formatted, time tagged, recorded, processed, and routed for display to mission control and telemetry display areas. Additionally, processed tracking data is transmitted back to instrumentation sites as an aid to acquire or maintain vehicle track. The mission control area consists of a control and status console, high resolution color graphics stations, and large screen displays. As the mission controller observes mission progress on the graphics stations operational decisions can be made and invoked by activation of the appropriate console controls. Visual alarms provided my MMTS will alert mission control personnel of hazardous conditions posed by any tracked vehicle. Manual action can then be taken to activate transmission of the MMTS vehicle destruct signal. The telemetry display area consists of ten fully-functional, PC compatible computers which are switchable to either of two telemetry front end processors. Each PC can be independently set up by telemetry analysts to display data of interest. A total of thirty data pages per PC can be defined and any defined data page can be activated during a mission. A unique feature of the MMTS is that telemetry data can be combined with tracking data for use by the range safety functions.
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31

Plew, Jason. "Development of a flight avionics system for an autonomous Micro Air Vehicle." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0008540.

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32

Andersson, Markus. "Automatic Tuning of Motion Control System for an Autonomous Underwater Vehicle." Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-159202.

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The interest for marine research and exploration has increased rapidly during the past decades and autonomous underwater vehicles (AUV) have been found useful in an increased amount of applications. The demand for versatile platform AUVs, able to perform a wide range of tasks, has become apparent. A vital part of an AUV is its motion control system, and an emerging problem for multipurpose AUVs is that the control performance is affected when the vehicle is configured with different payloads for each mission. Instead of having to manually re-tune the control system between missions, a method for automatic tuning of the control system has been developed in this master’s thesis. A model-based approach was implemented, where the current vehicle dynamics are identified by performing a sequence of excitation maneuvers, generating informative data. The data is used to estimate model parameters in predetermined model structures, and model-based control design is then used to determine an appropriate tuning of the control system. The performance and potential of the suggested approach were evaluated in simulation examples which show that improved control can be obtained by using the developed auto-tuning method. The results are considered to be sufficiently promising to justify implementation and further testing on a real AUV. The automatic tuning process is performed prior to a mission and is meant to compensate for dynamic changes introduced between separate missions. However, the AUV dynamics might also change during a mission which requires an adaptive control system. By using the developed automatic tuning process as foundation, the first steps towards an indirect adaptive control approach have been suggested. Also, the AUV which was studied in the thesis composed another interesting control problem by being overactuated in yaw control, this because yawing could be achieved by using rudders but also by differential drive of the propellers. As an additional and separate part of the thesis, an approach for using both techniques simultaneously have been proposed.
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33

Lee, Man-ying Nicole. "An AIS-based vehicle control framework in port container terminals." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B41508361.

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34

Rosenstatter, Thomas. "Modelling the Level of Trust in a Cooperative Automated Vehicle Control System." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-32046.

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Vehicle-to-Vehicle communication is the key technology for achieving increased perception for automated vehicles where the communication allows virtual sensing with the use of sensors placed in other vehicles. In addition, this technology also allows recognising objects that are out-of-sight. This thesis presents a Trust System that allows a vehicle to make more reliable and robust decisions. The system evaluates the current situation and generates a Trust Index indicating the level of trust in the environment, the ego vehicle, and the other vehicles. Current research focuses on securing the communication between the vehicles themselves, but does not verify the content of the received data on a system level. The proposed Trust System evaluates the received data according to sensor accuracy, behaviour of other vehicles, and the perception of the local environment. The results show that the proposed method is capable of correctly identifying various situations and discusses how the Trust Index can be used to make more robust decisions.
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35

Rosello, Anthony David. "A vehicle health monitoring system for the space shuttle reaction control system during reentry." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/46443.

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36

Rundqvist, Erik. "A Control System for Automated Docking of an Unmanned Underwater Vehicle." Thesis, KTH, Reglerteknik, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-107533.

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Unmanned underwater vehicles (UUV) are receiving increased attention for both military and civilian applications. For example, UUVs were deployed in the war against Iraq for mine counter measure missions and are becoming a necessary tool in the deep sea mining industry. If UUVs were able to dock while submerged, it would greatly increase their efficiency, as well as reduce the cost involved in their deployment and recovery. The ability to both operate and dock in a submerged state would also provide the UUV a degree of stealth. A future application where UUVs would prove a valuable asset is for harbor control where stealth is an essential quality. A submerged docking bay would enable the UUV to both upload completed mission data and download new mission objectives while recharging its batteries. To succeed in this endeavor, a control system capable of guiding the UUV safely into an underwater docking bay is required. This thesis describes the development of two different control algorithms, a fuzzy controller and a Linear Quadratic Regulator (LQR). For simulation purposes, a 3D model of a small UUV is generated using ADAMS/view software. Another model is generated in Simulink/MATLAB using the equations of motions for the UUV, yielding faster and more numerically stable simulations. Both models are including the effects of water drag and have vertical and horizontal rudders and thruster inputs. The controllers are built using Simulink/MATLAB and the simulations are run either using Simulink/MATLAB entirely or in co-simulation mode with ADAMS, enabling a more graphic representation of the results. The UUV chosen for this thesis is called REMUS and is developed by Woods Hole Oceanographic Institute. It measures 1.6 m and weighs 37 kg. Included in this work is a thorough analysis of both controllers including key results enabling a comparison of the two controllers performance. A number of requirements were set up for the controllers and except for water current disturbances, both controllers met their requirements. When off course the presented LQR is able to steer the UUV back on course more quickly and smoothly than the Fuzzy controller. The conclusion of this thesis when combining all characteristics of the different controllers’ performance is that the LQR is the natural choice of controller for autonomous underwater docking of an UUV. The research described in this thesis has the potential to further increase the efficiency of UUVs by enabling underwater docking. The ultimate future work would naturally be to test the described controllers on the REMUS in a test tank to verify the results presented in this thesis.
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37

Du, Yongliang. "Development of real-time flight control system for low-cost vehicle." Thesis, Cranfield University, 2011. http://dspace.lib.cranfield.ac.uk/handle/1826/8621.

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In recent years, more and more light aircraft enter our daily life, from Agricultural applications, emergency rescue, flight experiment and training to Barriers to entry, light aircraft always have their own advantages. Thus, they have become more and more popular. However, in the process of GDP research about Flight Control System design for the Flying Crane, the author read a lot of literature about Flight Control System design, then noticed that the research in Flight Control System have apparently neglected to Low-cost vehicles. So it is necessary to do some study about Flight Control System for this kind of airplane. The study will more concern the control law design for ultra-light aircraft, the author hopes that with an ‘intelligence’ Flight Control System design, this kind of aircraft could sometimes perform flying tasks according to a prearranged flight path and without a pilot. As the Piper J-3 cub is very popular and the airframe data can be obtained more easily, it was selected as an objective aircraft for the control law design. Finally, a ¼ scale Piper J-3 cub model is selected and the aerodynamics coefficients are calculated by DATCOM and AVL. Based on the forces and moments acting on the aircraft, the trim equilibrium was calculated for getting proper dynamics coefficients for the selected flight conditions. With the aircraft aerodynamics coefficients, the aircraft dynamics characteristics and flying qualities are also analyzed. The model studied in this thesis cannot answer level one flying qualities in the longitudinal axis, which is required by MIL-F- 8785C. The stability augment system is designed to improve the flying qualities of the longitudinal axis. The work for autopilot design in this thesis includes five parts. First, the whole flight profile is designed to automatically control aircraft from takeoff to landing. Second, takeoff performance and guidance law is studied. Then, landing performance and trajectory is also investigated. After that, the control law design is decoupled into longitudinal axis and later-directional axis. Finally, simulation is executed to check the performance for the auto-controller.
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38

Bell, James R. (James Robert) 1964. "An aerocapture attitude control system incorporating robustness and vehicle parameter identification." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/43187.

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39

Abdelgayed, Mohamed E. "Design and Control the Ancillary System for Hydraulic Hybrid Vehicle (HHV)." University of Toledo / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1278075678.

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40

Wang, Haoan. "Control System Design for Autonomous Vehicle Path Following and Collision Avoidance." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1543237990740835.

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41

Shei, Yen-Weay, and 徐炎惟. "Vehicle Model and Control System Design." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/24654106087712306563.

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碩士
國立臺灣大學
應用力學研究所
82
Automobile has become an indispensable vehicle to our daily and an autonomous driving system(A.D.S.) is our long-term dream. However, to make this dream come true, many different and quite difficult disciplines such as dynamics, analysis and sensor & controller design need to be synthesized. Under this this thesis starts from deriving kinematic equation of the experimental three-wheel vehicle and then designing the control system. In previous works, there are many articles about autonomous driving system that emphasized on the theorical Study, but experiments are seldom under discussion. In this thesis, we not only point out the theorical structure of the vehicle ,but also conduct the experiment with the Globaltem Receiver.
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42

Yu, Chiu. "Vision-based Vehicle Lane-keeping Control System." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0016-1303200709331181.

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43

趙紘慶. "Control Scheme for Active Suspension Vehicle System." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/16102838963017048337.

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碩士
國立臺灣科技大學
機械工程技術研究所
86
In recently, many active suspension system researches have been proposed to improve the riding comfort. Most of them are based on computer simulation without experimental implementation supports. In this study, a quarter car experimental model is designed and built based on the concept of four wheels independent suspension. Then the suzzy logic control and grey theory are employed to design a controller for this experimental system to achieve the vibration suspehsion.   The experimental results show that the tyre deformation influence significantly the control performance of this suspension system. Hence, the grey predictor is employed to predict the tyre deformation and filter it out from feedback error signal. It can be observed that the control performance has been improved obviously by usig this strategy.
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44

Chiu, Yu, and 邱瑜. "Vision-based Vehicle Lane-keeping Control System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/78330048874644996368.

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碩士
國立清華大學
動力機械工程學系
94
In this work, a control system of lane keeping by utilizing lane markers in the image as the image characteristics and the designed Proportional-Derivative (PD) or Proportional-Integral-Derivative (PID) controllers has been presented. The white lane markers painted on the road were seized as the input image characteristics, and the time needed to handle the input data was decreased by using grayscale transformation, resizing, and Region of Interest (ROI). Then, a PD or PID controller is designed to keep the vehicle driving along the center line of current lane and the steering angle was employed as controller output. The proposed method in this thesis eliminated special lane marks as the input image characteristics, and was able to detect current vehicle orientation and lateral position in the lane without any special hardware. These advantages improved the current lane keeping system and could reduce the amount of traffic accidents.
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45

蔣易蓉. "A Reconfigurable Distributed Control Platform for Vehicle Control Development System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/42528413314272485431.

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碩士
國立彰化師範大學
電子工程學系
95
As vehicles become intelligent for the convenience and safety of drivers, the techniques of communication, sensing, signal processing and advanced microprocessors are the development focus of vehicle’s control system. However, reduce the development effort, shorten the design time, and promote technique updating of the advance vehicle for complying with the rapidly changing requirements and policy. We provide a development protocol with a platform to integrate the development lifecycle has been introduced. The objective of ECU development platform is built up a softwarized distributive control system. The hardware module embedding software component promotes the abstraction level about the function modules to ensure the capabilities of reconfigurable and reusable for easily and agilely creating the specific control system on the software distributive control platform. We study and enforce IEEE1451.x sensor network based on CAN bus. Large number of different low level sensors can be rapidly integrated to use and become a basic distributive control system. Intelligent agent technology offer easy to use to variety reconfigure basic computer agent, and availability add reused of computer resource. Consequently, the developed platform of softwarized distributive control system creates a clear migration path for system development from policy to physical communication media to possess the reconfigurable and rapid plug-and-play capabilities.
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46

Chou, An-Cheng, and 周安正. "Dynamics Simulation and Control for Vehicle Driving System." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/25841415780587630222.

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碩士
大葉大學
機械工程研究所
90
The thesis is to develop the dynamical equation of motion of a car with seven degrees of freedom including the longitudinal, lateral, yaw motion, and rotational motions of four wheels. The longitudinal force, lateral force and yaw rate are investigated during the vehicle changing its direction of cruise. The simulation studies are divided into two parts. The first part is path following for the desired path. We generate the steering-wheel angles by human being experience for following different paths. The simulation results are used as the training data for the fuzzy controller with ANFIS learning process. The path following fuzzy controller is verified by the computer simulation. The second part is dynamic driving control (DDC). By applying the brake force for each wheel, the yaw moments can be produced to adjust traveling direction of the vehicle. It leads to the better control result for lane change and obstacle avoidance in snow land. The fuzzy controller can effectively follow the planned path on the dry and snow road land. By adding the dynamic driving controller in the vehicle, it can enhance its driving control stability on the snowy road surface.
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47

LI, KUAN-TING, and 黎冠廷. "Research On Vehicle Access Control System By APP." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/fcgaue.

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碩士
醒吾科技大學
資訊科技應用系
105
Normally, vehicles access through gates mainly by rolling doors or fences based controlling systems. There are only three ways of controlling it, which are switch on, off and pause, also the only way to access it is with or without the remote. Although abundant products in the market come in various functions, however, certain latent hazard such as driving safety, material cost, managing difficulties, and information safety are still no solutions. This research determines to solve the problems above by a controller device matching with a smartphone APP. One of the biggest inconveniences of remote controllers is the expensive cost of copying a new one. However, by designing access codes for drivers and managers’ APP, the cost is easily reduced. The controller inside rolling doors communicates with the APP by Bluetooth, which sends AES-128bit encrypted codes. In addition, by adding serial numbers, the system can prevent resending accuses and violent cracking situations. Furthermore, there is a hands-free function in the APP, which connects with the thermal sensors on the controller, to resolve driving safety. According to experiment results, the operation of the APP interface system and original controllers are both proper functioning, meaning, the installation of the new controller does not affect any original circuits of the rolling door. The low cost of the controller system and entity box proves the convenience, practical and secured feature of this research.
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48

Hsu, Yuan-Sheng, and 許緣聖. "Study of power control system for electric vehicle." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/11653117093615916183.

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碩士
國立屏東科技大學
車輛工程系所
100
This thesis is aimed for the design of the power system of electric vehicle (EV), which possessed of front and rear axes independent driving. The power-source of front and rear axes in EV is individually propelled by 5 KW Blushless DC motor (BLDC) associated with a clutch-less Automatic Manual Transmission (CLAMT). Because of the lesser inertia of the power motor compared with an internal combustion engine (ICE), the clutch apparatus is not required while the power motor is adopted in EV instead of engine power. By controlling the power motor speed responsively and accurately, the power motor speed and the output shaft speed of the gear train are synchronized for smooth gear engagement. And, while the power-source of front axis is proceeding with the gear-change procedure, the power-source of rear axis still continues to provide vehicle power to reduce the ‘torque hole’ phenomenon, which is the interruption of the driving torque imposed on the vehicle during gear-change. In addition, in order to promote EV braking performance, the power motor could be made switch as generator mode to convert the kinetic energy into electric energy for providing extra brake force during vehicle deceleration. According to the purposes stated above, the work projects of this thesis are divided into three portions: the first is to propose the gear-change control technique of CLAMT, which includes control scheme of the synchronization speed during gear engagement, motion control of the gear-change actuator mechanism, and the gear-shifting strategy for determining the suitable gear-shifting points, so that the drive train of EV can achieve smooth gear-shifting and be operated with optimum efficiency (namely, the high efficiency region of the power motor). The second is to integrate regenerative braking assistant into the drive train of EV for overcoming the problem of insufficient braking force and design a set of experimental procedure and analysis method about vehicle brake sensitivity. Finally, the third is to develop the simpler human-computer interface (HCI) and CAN BUS communication architecture for integrating each power subsystem and making system kindness through coordination among software and hardware circuit.
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49

Huang, Erh-Chun, and 黃而駿. "Vehicle Traction Control System: Sliding Mode Control and Computer Graphics Simulation." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/54080399059263739968.

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碩士
國立臺灣大學
電機工程學研究所
94
Wheel spin is a phenomenon which may occur while a car starts or runs on a slippery road. As the slip between the tires and road increases, the traction force decreases and most drivers may not be able to steer the car properly. Traction control system (TCS) can help improve driving stability and safety by restricting the slip of the driven wheels. The slip restriction is usually achieved by exerting brake torque or reducing the torque generated by the engine. In this thesis, to cope with the strong nonlinearity of the friction-slip curve, the uncertainty caused by the aero dynamics, and the complex actuator dynamics, a tire slip controller based on the sliding mode method is designed for a TCS. Although the controller is designed by taking the actuator model as a simple gain, the simulation results show the robustness of the controller when a detailed actuator model is included. Furthermore, animation based on computer graphics is made to compare the acceleration performance and directional stability of TCS-equipped cars with those of non TCS-equipped cars. In the animation process, texture mapping and billboarding techniques are adopted to make the simulation scenario much more realistic.
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50

Tsai, Chih-Chung, and 蔡執中. "Algorithm and Architecture Design of Vehicle Tracking for Intelligent Vehicle Cruise Control System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/29780812914835147998.

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碩士
國立臺灣大學
電子工程學研究所
98
In this thesis, future vision-based intelligent cruise control system is targeted. A knowledge-based intelligent vehicle tracking system is proposed to satisfy the demands of safety and energy-saving purposes. In the trend of future intelligent vehicle, safety and energy efficiency are two critical developing goals. Intelligent cruise control, which satisfies both safety and energy efficiency purposes, is an important vehicle application for that. The developing trend also shows, with the enhancement of video analysis technologies, computer vision will play an important role in the future cruise system. Therefore, this thesis explores and researches on a vision-based vehicle cruise. A vehicle recognition and tracking system is discussed and developed by three aspects of performance, cost, and system specification. First the impact of video specification on vehicle cruise control is discussed. By the energy consumption simulation for driving cycles, we can noticed that in automatic cruising condition, the detection accuracy of relative velocities of surrounding vehicles directly affects the energy efficiency. However, the velocity detection accuracy is influenced by the video specification. Considering the vehicle safety and energy efficiency issues, we expect that the proposed system can support up to super high resolution (4096x2160), and 10-frame-per-second computing throughput can be reached under that resolution. The system of vehicle recognition and tracking is explored as follows in this thesis. In the system, the module of vehicle recognition is responsible to recognize vehicle positions in image and output them to the vehicle tracking modulefor tracking and range detection. Though learning-based recognition algorithms perform high recognition rate and reliability, there are limitations on the abilities of object positioning, object size determination and false alarm rate minimization. Facing to these error conditions, several common object tracking algorithms are discussed. It can be found that current related algorithms are incapable of solving the problem of error position initialization and cannot be practically applied in vision-based cruise system. Therefore, a knowledge-based intelligent vehicle tracking algorithm is proposed. The algorithm is developed with the existed knowledge of vehicle characteristics, and it possesses two main functionalities, position auto-adjustment and false alarm reduction. As experimental results show, the proposed knowledge-based algorithm performs better ability of range detection, and it also effectively reduces the system false alarm rate. Moreover, due to the resistance against the departure error of initial position, a recognitionand- tracking parallel processing scheme can be applied instead of the sequential processing, which reduces a large amount of system memory cost. One of the essential factors is the required system throughput under the targeted high image resolution. In the last part, the execution timing performance of proposed tracking algorithm is analyzed. A hardware-oriented algorithm optimization methodology and its corresponding hardware architecture are proposed for acceleration. During hardware design, different optimization techniques are applies to the architecture. The system after hardware acceleration reaches the processing speed of 81.4 frames per second under 1280x960 image resolution, and it can support up to 4096x2160 image resolution with 11 frames per second processing speed, which fits the specification of cruise control system. The hardware is finally implemented with UMC 90nm Logic Low-K SP-RVT Process technology. The total chip size is 2.2x2.2mm2 with 12.8Kbits on-chip memory. Operating frequency is 100MHz and the minimum and maximum powers are 23.45mW and 648.75mW, respectively. Maximum five targets can be tracked simultaneously.
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