Dissertations / Theses on the topic 'Vehicle Control System'
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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.
Full textWu, 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.
Full textAl, Swailem Salah I. "Application of robust control in unmanned vehicle flight control system design." Thesis, Cranfield University, 2004. http://hdl.handle.net/1826/136.
Full textHamersma, H. A. (Herman Adendorff). "Longitudinal vehicle dynamics control for improved vehicle safety." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/40829.
Full textDissertation (MEng)--University of Pretoria, 2013.
gm2014
Mechanical and Aeronautical Engineering
unrestricted
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.
Full textYatsko, Margaret Jane. "Development of a Hybrid Vehicle Control System." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1459890202.
Full textKirsch, 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.
Full textThesis 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.
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.
Full textSpejcher, Clint. "A comprehensive fleet risk control system for Bill's Distributing." Online version, 1998. http://www.uwstout.edu/lib/thesis/1998/1998spejcherc.pdf.
Full textGao, Jianmin. "Control and simulation of an active suspension system." Thesis, University of Wolverhampton, 1997. http://hdl.handle.net/2436/97364.
Full textKang, 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.
Full textPh. D.
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.
Full textBromand, 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.
Full textLi, Zhijun. "Vehicle merging control for an automated highway system." Diss., Virginia Tech, 1996. http://hdl.handle.net/10919/40048.
Full textPh. D.
Palomeras, Rovira Narcís. "A mission control system for an autonomous underwater vehicle." Doctoral thesis, Universitat de Girona, 2011. http://hdl.handle.net/10803/69957.
Full textEl 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.
Sermeno, Mena Salvador. "Vehicle thermal management control systems." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0052.
Full textThe 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
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.
Full textGuan, Wenyang. "Adaptive QoS control of DSRC vehicle networks for collaborative vehicle safety applications." Thesis, Swansea University, 2013. https://cronfa.swan.ac.uk/Record/cronfa42507.
Full textMacArthur, Erica Zawodny. "Compliant formation control of an autonomous multiple vehicle system." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0017508.
Full textDai, 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.
Full textCloutier, Michael John. "Guidance and control system for an Autonomous Underwater Vehicle." Thesis, Monterey, California. Naval Postgraduate School, 1990. http://hdl.handle.net/10945/30635.
Full textThe 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.
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.
Full textWanner, 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.
Full textQc 20120730
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.
Full textI 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.
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.
Full textYou, Kyuhyong. "The control system design of an omni-directional vehicle platform." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024642.
Full textKandasamy, 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.
Full textThesis 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.
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.
Full textAn 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.
Kaba, Mohamed. "Controlled Autonomous Vehicle Drift Maneuvering." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1557195355216909.
Full textAspnes, Richard K., and Russell J. Yuma. "MMTS: Multi-Vehicle Metric & Telemetry System." International Foundation for Telemetering, 1988. http://hdl.handle.net/10150/615244.
Full textThe 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.
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.
Full textAndersson, 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.
Full textLee, 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.
Full textRosenstatter, 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.
Full textRosello, 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.
Full textRundqvist, 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.
Full textDu, 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.
Full textBell, 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.
Full textAbdelgayed, 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.
Full textWang, 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.
Full textShei, Yen-Weay, and 徐炎惟. "Vehicle Model and Control System Design." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/24654106087712306563.
Full text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.
Yu, Chiu. "Vision-based Vehicle Lane-keeping Control System." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0016-1303200709331181.
Full text趙紘慶. "Control Scheme for Active Suspension Vehicle System." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/16102838963017048337.
Full text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.
Chiu, Yu, and 邱瑜. "Vision-based Vehicle Lane-keeping Control System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/78330048874644996368.
Full text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.
蔣易蓉. "A Reconfigurable Distributed Control Platform for Vehicle Control Development System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/42528413314272485431.
Full text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.
Chou, An-Cheng, and 周安正. "Dynamics Simulation and Control for Vehicle Driving System." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/25841415780587630222.
Full text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.
LI, KUAN-TING, and 黎冠廷. "Research On Vehicle Access Control System By APP." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/fcgaue.
Full text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.
Hsu, Yuan-Sheng, and 許緣聖. "Study of power control system for electric vehicle." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/11653117093615916183.
Full text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.
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.
Full text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.
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.
Full text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.