Artículos de revistas: "Aftermarket engine control unit"

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Wang, Da, Chuan Xue Song y Si Lun Peng. "Design of Extended-Range Electric Vehicle Integrated Control System Based on Rapid Prototype Technology". Applied Mechanics and Materials 740 (marzo de 2015): 251–56. http://dx.doi.org/10.4028/www.scientific.net/amm.740.251.

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Based on Motohawk rapid prototype development platform and “Development to Production (D2P)”development process, an integrated control system has been built, adapting to the principle and configuration of extended-range electric vehicle. This control system integrated traditional vehicle controller, drive motor controller, APU controller, engine controller and generator controller. The development of this control system is based on ControlCore underlying operation system and designed by Simulink/Stateflow software. Production-level automotive ECU has also been used as the hardware platform. This development method can significantly simplify the topology structure of control system, decrease the develop cycle of extended-range electric vehicle, and reduce the cost in development, production and aftermarket maintenance.

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Pavlovic, Jelica, Amara L. Holder y Tiffany L. B. Yelverton. "Effects of Aftermarket Control Technologies on Gas and Particle Phase Oxidative Potential from Diesel Engine Emissions". Environmental Science & Technology 49, n.º 17 (13 de agosto de 2015): 10544–52. http://dx.doi.org/10.1021/acs.est.5b01487.

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3

Li, Kun. "Quality Control Scheme Design on Remanufactured Engine Electronic Control Unit". Advanced Materials Research 860-863 (diciembre de 2013): 2395–98. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.2395.

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The quality control scheme on remanufactured Engine Electronic Control Unit (ECU) was studied designed. According to the effectiveness of environmental factors exciting faults, the quality control technology and method on remanufactured ECU was proposed to meet the rigorous quality requirements on remanufactured electronic product. The temperature cycling test, random vibration test and damp heat test in this scheme were defined. After experiments, the near failures ECUs are eliminated. The testing results indicate that used engines ECUs are suitable for remanufacturing and reusing.

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4

Serikov, Sergey A. "Synthesis of Optimal Control of Hybrid Engine Unit". Journal of Automation and Information Sciences 41, n.º 3 (2009): 71–81. http://dx.doi.org/10.1615/jautomatinfscien.v41.i3.80.

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5

George, Elviz y Michael Pecht. "Tin whisker analysis of an automotive engine control unit". Microelectronics Reliability 54, n.º 1 (enero de 2014): 214–19. http://dx.doi.org/10.1016/j.microrel.2013.07.134.

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6

Strapko, Michal y Radek Tichánek. "Engine control unit based on the Ni compactrio platform". Journal of Middle European Construction and Design of Cars 9, n.º 3 (1 de diciembre de 2011): 47–54. http://dx.doi.org/10.2478/v10138-011-0019-8.

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SHRNUTÍ Byla vyvinuta programovatelna řidici jednotka na platformě CompactRIO s programem vytvořenym v prostředi LabVIEW. Jednotka byla vyvijena jako univerzalni a byla testovana při řizeni maleho zažehoveho motoru YAMAHA YZF R6. Jednotka je dale použitelna pro zažehove motory různe koncepce, přeplňovane i nepřeplňovane. Požadavku na univerzalnost jednotky byl přizpůsoben řidici program, ktery je uspořadan ve vzajemně komunikujicich samostatnych blocich. Zařizeni je rozšiřitelne o dalši I/O moduly, což umožňuje použiti dalšich snimačů, aktuatorů nebo modulů pro komunikaci. Rozhrani pro zesileni vystupů napajejicich zapalovani a vstřikovače bylo vyvinuto pro řizeni motoru YAMAHA YZF R6. Toto zařizeni zaroveň stabilizuje napajeni snimačů motoru a filtruje jejich vystupni signaly. Članek je shrnutim procesu vyvoje řidici jednotky motoru, obsahuje přehled použitych zařizeni, seznamuje s řidicim programem a zkušenostmi z testovani na motoru.

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7

Wang, Jun, Shu Han y You Tong Zhang. "Model Simulation of Electronic Unit Pump Diesel Engine Oriented to Control". Advanced Materials Research 443-444 (enero de 2012): 495–500. http://dx.doi.org/10.4028/www.scientific.net/amr.443-444.495.

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To broaden the application range of hardware in loop simulation for electronic controlled unit, study on model simulation of electronic unit pump diesel engine oriented to control is made, the requirement and selection of simulation model oriented to control in electronic unit pump diesel engine is provided, model of simplified nonlinearity in diesel engine and electronic unit pump system are established in Matlab/Simulink, model verification shows that this model can achieve relative accuracy, by means of calculation time and parameter, different calculation step and method affecting model output is analyzed and compared. Real engine model is applied into hardware-in-loop simulation test, its results show that model can perform real-time ECU hardware-in-loop simulation test accurately.

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8

Anand, B. y C. Saravanan. "DEVELOPMENT OF RESEARCH ENGINE CONTROL UNIT USING FPGA -BASED EMBEDDED CONTROL SYSTEM". Journal of KONES. Powertrain and Transport 19, n.º 3 (1 de enero de 2015): 9–18. http://dx.doi.org/10.5604/12314005.1137939.

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9

Jensen, Samuel J., Pramod M. Paul, A. Ramesh, Anand Mammen Thomas, N. S. Prasad y A. Kumarasamy. "Development of a Fuel Quantity based Engine Control Unit Software Architecture". Defence Science Journal 69, n.º 3 (30 de abril de 2019): 203–7. http://dx.doi.org/10.14429/dsj.69.14420.

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Conventionally diesel engines are controlled in open loop with maps based on engine speed and throttle position wherein fuel quantity is indirectly fixed using the rail pressure and injection duration maps with engine speed and throttle position as the independent variables which are measured by the respective sensors. In this work an engine control unit (ECU) software architecture where fuel quantity is directly specified in relation to the driver demand was implemented by modifying the control logic of a throttle position based framework. A desired fuel quantity for a given engine speed and throttle position was mapped from base line experiments on the reference engine. Injection durations and rail pressure required for this quantity was mapped on a fuel injector calibration test bench. The final calculation of injection duration in the new architecture is calculated using the fuel injector model. This enables determination of fuel quantity injected at any moment which directly indicates the torque produced by the engine at a given speed enabling smoke limited fuelling calculations and easing the implementation of control functions like all-speed governing.

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10

Chen, Jin Mao, Xiao Ying Sun, Guan Jun Leng, Ru Juan Yi y Bo Gao. "Improvement of Engine Coolant Ultrasonic Cavitation Apparatus". Applied Mechanics and Materials 733 (febrero de 2015): 574–77. http://dx.doi.org/10.4028/www.scientific.net/amm.733.574.

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The structure of cast iron specimen and the temperature control unit of the engine coolant ultrasonic cavitation apparatus were improved in this paper. The broken problem of cast iron specimen was solved by split-structure design, which also solved the loose binding problem between specimen and sonotrode. The temperature control unit included a beaker with water circulating jacket, water bath, circulating pump and connection hose. The temperature control unit overcame the difficulty of the temperature control of test coolant solution. More important, the temperature control inside the soundproof box was realized, which avoided the effect of ultrasonic vibration noise on the health of operator. The unit has the characteristics of simple, practical and easy to use.

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11

Kho, Seonghee y Hyunbum Park. "Design of the Electronic Engine Control Unit Performance Test System of Aircraft". Aerospace 8, n.º 6 (3 de junio de 2021): 158. http://dx.doi.org/10.3390/aerospace8060158.

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In this study, a real-time engine model and a test bench were developed to verify the performance of the EECU (electronic engine control unit) of a turbofan engine. The target engine is a DGEN 380 developed by the Price Induction company. The functional verification of the test bench was carried out using the developed test bench. An interface and interworking test between the test bench and the developed EECU was carried out. After establishing the verification test environments, the startup phase control logic of the developed EECU was verified using the real-time engine model which modeled the startup phase test data with SIMULINK. Finally, it was confirmed that the developed EECU can be used as a real-time engine model for the starting section of performance verification.

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12

WRÓBLEWSKI, Aleksander. "Multi-criteria fuel system optimization with an electronic control unit". Combustion Engines 168, n.º 1 (1 de febrero de 2017): 51–55. http://dx.doi.org/10.19206/ce-2017-108.

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This paper presents the results of the multi-criteria synthesis of a diesel engine fuel system using the optimization method. The optimization criteria, functional restrictions and quality criteria have been selected. The efficiency of the proposed method was demonstrated using the example of a diesel engine with the Common Rail system.

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13

Prohorenko, A. y P. Dumenko. "Software Algorithm Synthesis for Diesel Electronic Control Unit". Latvian Journal of Physics and Technical Sciences 55, n.º 3 (1 de junio de 2018): 16–26. http://dx.doi.org/10.2478/lpts-2018-0017.

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Abstract Nowadays global engine construction gets significant progress at a technological level, but specified manufacturers do not release any information about the composition, the structure of the algorithms and the software used by their equipment. It is possible to obtain information only fragmentary and, for example, the description of the electronic control unit algorithm is completely missing. This is a barrier for small companies to improve and adjust existing engines for specific purposes. The present paper describes and develops algorithm synthesis for an electronic diesel engine regulator. Mathe-matical modelling of the automatic control system has been carried out within the framework of the research. The results of the research have demonstrated the efficiency and sustainability of automatic electronic control system using the proposed algorithm.

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Salehi, Amin y Morteza Montazeri-GH. "Design and HIL-based verification of the fuel control unit for a gas turbine engine". Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 234, n.º 8 (17 de marzo de 2020): 1460–70. http://dx.doi.org/10.1177/0954410020910593.

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The correct operation of a gas turbine engine depends on the accurate and stable performance of fuel control system and its components such as fuel control unit. Fuel control unit is an electro-hydraulic actuator of fuel control system whose function is to supply, regulate and send the fuel to the engine according to the electronic control unit command. In this paper, a new fuel control unit has been developed based on the load sensing concept for a turboshaft gas turbine engine. In the designed fuel control unit, the fuel flow rate is controlled by adjusting the fuel pressure. A NARX model and ANFIS controller is employed to design the pressure controller. A hardware in the loop framework, comprising of hydraulic circuit, sensors, data acquisition card and computers, is developed to evaluate the performance of the fuel control unit alongside the real-time simulation of other component such as engine and electronic control unit. Moreover, the consumed power by the fuel control unit is evaluated and a considerable improvement is indicated compared to typical fuel control units.

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15

Synák, František, Ján Synák, Tomáš Skrúcaný y Saša Milojević. "Modification of Engine Control Unit Data and Selected Vehicle Characteristics". Applied Engineering Letters : Journal of Engineering and Applied Sciences 4, n.º 4 (2019): 120–27. http://dx.doi.org/10.18485/aeletters.2019.4.4.3.

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16

Mamala, Jarosław, Sebastian Brol y Mariusz Graba. "Engine Control Unit Testing by Hardware-in-the-Loop Simulation". Solid State Phenomena 214 (febrero de 2014): 67–74. http://dx.doi.org/10.4028/www.scientific.net/ssp.214.67.

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The article presents simulator of injection-ignition system of internal combustion engine with spark ignition developed at the Technical University of Opole. This system is based on Bosch series engine ECU with software 7.5. It allows to analyze of motor parameters using both on-board diagnostic system, and data network CAN BUS under different operating conditions of the system. For this purpose, the simulator is equipped with a number of additional devices enable to generate repetitive input signals for the ECU, allowing to open the actual working conditions. Crucial for the simulator was to generate the signals informing ECU about the instantaneous position of the crankshaft and camshaft. For this purpose, the module Arduino was used. This type of solution allows, to recreate momentary engine operating conditions. This article also presents the concept of development with new features and sentences feasible for this type of device and simulation mode.

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17

Vong, Chi-man y Pak-kin Wong. "Case-based adaptation for automotive engine electronic control unit calibration". Expert Systems with Applications 37, n.º 4 (abril de 2010): 3184–94. http://dx.doi.org/10.1016/j.eswa.2009.09.063.

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Andrea Balluchi, Maria D. Di Benedetto, Alberto Ferrari, Giovanni Gaviani, Giovanni Girasole, Claudio Grossi, Walter Nesci, Michele Pennese y Alberto L. Sangiovanni-Vincentelli. "Design of a Motorcycle Engine Control Unit Using an Integrated Control-Implementation Approach". IFAC Proceedings Volumes 37, n.º 22 (abril de 2004): 203–8. http://dx.doi.org/10.1016/s1474-6670(17)30345-2.

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19

Serrarens, Alex F. A., Shuiwen Shen y Frans E. Veldpaus. "Control of a Flywheel Assisted Driveline With Continuously Variable Transmission". Journal of Dynamic Systems, Measurement, and Control 125, n.º 3 (1 de septiembre de 2003): 455–61. http://dx.doi.org/10.1115/1.1589033.

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This paper proposes a control solution for a vehicular driveline with an internal combustion engine, a continuously variable transmission and an additional flywheel unit. This unit plays a part only in transient situations. It compensates for the engine inertia, enabling optimal fuel economy in stationary situations without losing driveability during transients. For control design, a simple, nonlinear model is developed and used for feedback linearization. The proposed controller is evaluated by simulations, using an advanced simulation model. The compensation of the engine inertia by the additional flywheel is demonstrated by vehicle experiments.

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20

Hardie, C., H. Tait, S. Craig, J. G. Chase, B. W. Smith y G. Harris. "Automated tuning of an engine management unit for an automotive engine". Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 216, n.º 10 (1 de octubre de 2002): 841–49. http://dx.doi.org/10.1177/095440700221600107.

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Modern automotive engines are digitally controlled using an engine management unit (EMU) that is typically manually programmed using an engine dynamometer to obtain desired levels of power, emissions and efficiency. Closed-loop control of an engine dynamometer and EMU, combined with an overall engine tuning algorithm, is used to automate the tuning of the engine map for a four-cylinder engine. The tuning algorithm determines the air-to-fuel ratio necessary for each region of engine speed and throttle position to obtain the desired performance, automatically moving to each operating region in the map. Preliminary automated tuning results produce power output curves comparable with those delivered using the original manufacturer tuned EMU. At lower engine speeds data filtering is required and results in power outputs slightly lower than the factory-tuned engine. At higher speeds small improvements in engine efficiency, for equivalent performance, can be found. The research presented clearly demonstrates that engine tuning to a very high standard, equivalent to original equipment manufacturer engine performance, can he successfully automated, saving time and adding consistency to the engine tuning process.

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Yoon, M., N.-H. Chung, M.-K. Lee y M.-H. Sunwoo. "An engine-control-unit-in-the-loop simulator of a common-rail diesel engine for cylinder-pressure-based control". Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 223, n.º 3 (marzo de 2009): 355–73. http://dx.doi.org/10.1243/09544070jauto930.

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22

Fu, Youyao y Bing Xiao. "The development of an electronic control system for diesel–natural gas dual-fuel engine". Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 232, n.º 4 (23 de febrero de 2018): 473–80. http://dx.doi.org/10.1177/0959651818756803.

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To meet the actual application requirements for the diesel–natural gas dual-fuel engine refit, a new electronic control system for the dual-fuel engine is developed in the study. Specifically, an active mode switching board is developed to achieve flexible switching between the pure diesel mode and dual-fuel mode. A diesel nozzle physical simulator is developed to ensure that the original diesel electronic control unit does not trigger fault alarm when engine works in the dual-fuel mode. Moreover, a dual-fuel electronic control unit, which uses the high-speed and multicore TMS320F28M35 as its microcontroller unit, is additionally developed on the basis of the original diesel electronic control unit. The peak and hold current shape for the diesel nozzle is intelligently controlled by the software program in C2000 core. Experiments reveal that the developed electronic control system can select a proper working mode according to the engine operation condition and smoothly switch the working mode without any fault alarms.

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23

Salehi, Amin y Morteza Montazeri-Gh. "Hardware-in-the-loop simulation of fuel control actuator of a turboshaft gas turbine engine". Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 233, n.º 3 (4 de octubre de 2018): 969–77. http://dx.doi.org/10.1177/1475090218803727.

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The turboshaft engine is the major component in the propulsion system of most marine vehicles, and proper control of its function as a sub-system in the propulsion system has a direct impact on the performance of the vehicle’s propulsion control system. The engine performance control is performed through the fuel control system. The fuel control system of a turboshaft gas turbine engine consists of two parts: electronic control unit and fuel control unit which is the actuator of the fuel control system. In this article, a hardware-in-the-loop simulation is presented for testing and verifying the performance of the fuel control unit. In the hardware-in-the-loop simulation, the fuel control unit in hardware form is tested in connection with the numerically simulated model of engine and electronic control unit. In this simulation, a Wiener model for the turboshaft engine is developed which is validated with the experimental data. Subsequently, a multi-loop fuel controller algorithm is designed for the engine and the parameters are optimized so that the time response and physical constraints are satisfied. In the next step, a state-of-the-art hydraulic test setup is built and implemented to perform the hardware-in-the-loop test. The test system contains personal and industrial computer, sensors, hydraulic components, and data acquisition cards to connect software and hardware parts to each other. In this hardware-in-the-loop simulator, a host–target structure is used for real-time simulation of the software models. The results show the effectiveness of hardware-in-the-loop simulation in fuel control unit evaluation and verify the steady and transient performance of the designed actuator.

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24

Taratorkin, Alexander, Viktor Derzhanskii y Igor Taratorkin. "Oscillation damping in the powertrain unit of transport vehicles". MATEC Web of Conferences 287 (2019): 01021. http://dx.doi.org/10.1051/matecconf/201928701021.

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The paper presents the results of an analytical experimental research of conditions for excitation of oscillatory processes in steady-state conditions and in the process of starting-up an engine equipped with a modern Common Rail fuel supply control system. Based on the results of mathematical simulation, the dependence of the dynamic torque amplitude on boosting acceleration during engine start-up and on the parameters of the elastic-dissipative coupling (connection) of the engine with the transmission is analyzed. It establishes the rationale for a possibility of optimizing the fuel supply system control algorithms for a modern diesel engine, taking into consideration the dependence of the process on the properties of the transmission and the peculiarities of its operation.

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Jantos, Jerzy, Krzysztof Prażnowski y Jarosław Mamala. "Automatic Gear Shift Unit". Solid State Phenomena 147-149 (enero de 2009): 185–90. http://dx.doi.org/10.4028/www.scientific.net/ssp.147-149.185.

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Automatization of gear shift and number selection in passenger cars with stepped transmission result in improvement of driving safety due to concentration of driver’s attention on the conditions of the traffic [1, 3]. Besides, the car can be used by a disabled person. The most important benefit of the projected solution is associated with reduction in fuel consumption resulting from the more economical selection of the transmission ratio [4, 5, 7]. The gear number choice depends on many factors, for example: traffic conditions, temporum vehicle and engine rotational speed as well as engine load. It is very often the case that even a driver with experience can face problems with optimal decisions. Automatically controlled system with suitable algorithm can reduce fuel consumption and improve the vehicle drivability. The system named MeGSS (Mechatronic Gear Shift System) has been developed for this purpose. It was subsequently tested in a passenger car equipped with five-step gear box. In the car the MeGSS is responsible for engine start process and the gear shift procedure. In this system the manual (M) and automatic (A) gear ratio control is possible. The gear shift procedure is connected with electronic throttle control algorithm, which promote smooth power transmission [2, 6].

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Zhang, Xin y Ling Cai. "Development and Research of the Mixing Fuel-Hydrogen Engine Control Unit". Applied Mechanics and Materials 121-126 (octubre de 2011): 3225–29. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.3225.

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An engine control unit mixing fuel-hydrogen based on microcontroller is proposed, including the system power modular, the sensor signal processing modular, the circuit of controller module, the actuator driving circuit module and the corresponding software system. The design and the control process of each module are introduced. The test results in the bench and roads demonstrate that the system can improve the fuel economy and deduce the emission significantly.

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De Giorgi, Maria Grazia, Luciano Strafella y Antonio Ficarella. "Neural Nonlinear Autoregressive Model with Exogenous Input (NARX) for Turboshaft Aeroengine Fuel Control Unit Model". Aerospace 8, n.º 8 (29 de julio de 2021): 206. http://dx.doi.org/10.3390/aerospace8080206.

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One of the most important parts of a turboshaft engine, which has a direct impact on the performance of the engine and, as a result, on the performance of the propulsion system, is the engine fuel control system. The traditional engine control system is a sensor-based control method, which uses measurable parameters to control engine performance. In this context, engine component degradation leads to a change in the relationship between the measurable parameters and the engine performance parameters, and thus an increase of control errors. In this work, a nonlinear model predictive control method for turboshaft direct fuel control is implemented to improve engine response ability also in presence of degraded conditions. The control objective of the proposed model is the prediction of the specific fuel consumption directly instead of the measurable parameters. In this way is possible decentralize controller functions and realize an intelligent engine with the development of a distributed control system. Artificial Neural Networks (ANN) are widely used as data-driven models for modelling of complex systems such as aeroengine performance. In this paper, two Nonlinear Autoregressive Neural Networks have been trained to predict the specific fuel consumption for several transient flight maneuvers. The data used for the ANN predictions have been estimated through the Gas Turbine Simulation Program. In particular the first ANN predicts the state variables based on flight conditions and the second one predicts the performance parameter based on the previous predicted variables. The results show a good approximation of the studied variables also in degraded conditions.

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Merkisz, Jerzy, Maciej Bajerlein, Paweł Daszkiewicz y Patryk Urbański. "The impact of camshaft control on combustion processes in a compression ignition VCR engine". Journal of Civil Engineering and Transport 2, n.º 1 (31 de marzo de 2020): 7–18. http://dx.doi.org/10.24136/tren.2020.001.

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The article contains an analysis of thermodynamic indicators of the CI engine with direct fuel injection. The tested unit was an engine with an unconventional crank-piston configuration, in which at a constant compression ratio, different engine crankshaft control variants were compared. In this article the time ranges in which the piston was located in the TDC were analyzed. Additionally, tests were carried out on a conventional unit for comparative purposes. For the purposes of the work, a piston displacement characteristic was generated in dynamic analysis in SolidWorks Motion. Then, this characteristic was used in the simulations of the combustion process in the AVL Fire program, where the most important thermodynamic indicators of the engine cycle were analyzed.

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Styła, Sebastian. "Computer didactic model of the electronic control unit of compression ignition engine". AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, n.º 12 (31 de diciembre de 2018): 662–66. http://dx.doi.org/10.24136/atest.2018.474.

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The article presented a computer model of the control unit of compression ignition engine developed and used as a didactic stand. It reflects the operating algorithms of the CI engine and gives the possibility of observation as well as determining the basic parameters and relationships occurring in the electronic control system EDC. In addition, the transparent structure of the model allows for easy introduction of changes in control parameters and modification of individual maps. The model was developed using the LabView graphic environment.

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Wu, Qi Dou, Fang Ping Yu, Hua Biao Jin y Yuan Xin Mao. "The Design of Urea Dosing Unit in Diesel Engine SCR System". Advanced Materials Research 512-515 (mayo de 2012): 2452–56. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.2452.

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The urea dosing unit in the diesel engine SCR system, real-time calculates and delivers the quantitative urea , which is vital to the reduction of the NOx emission. Considering the practical condition, according to the function of the urea dosing unit, based on the pump controlling quantitative and air assisted atomization principle, the mechanical part of dosing unit is designed. Also based on the consideration with versatility and openness of the unit, the control part of dosing unit is designed. At last, based on the the common and open platform founded by designed urea dosing unit, which is composed of mechanical part and control part, the SCR control module and dosing module are developed. At last, the designed dosing unit is examined by the engine ETC test. The ETC test results indicate the design achieves the intended purpose.

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Karagöz, Yasin y Majid Mohammad Sadeghi. "Electronic control unit development and emissions evaluation for hydrogen–diesel dual-fuel engines". Advances in Mechanical Engineering 10, n.º 12 (diciembre de 2018): 168781401881407. http://dx.doi.org/10.1177/1687814018814076.

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In this study, it was aimed to operate today’s compression ignition engines easily in dual-fuel mode with a developed electronic control unit. Especially, diesel engines with mechanical fuel system can be easily converted to common-rail fuel system with a developed electronic control unit. Also, with this developed electronic control unit, old technology compression ignition engines can be turned into dual-fuel mode easily. Thus, thanks to the flexibility of engine maps to be loaded into the electronic control unit, diesel engines can conveniently be operated with alternative gas fuels and diesel dual fuel. In particular, hydrogen, an alternative, environmentally friendly, and clean gas fuel, can easily be used with diesel engines by pilot spraying. Software and hardware development of electronic control unit are made, in order to operate a diesel engine with diesel+hydrogen dual fuel. Finally, developed electronic control unit was reviewed on 1500 r/min stable engine speed on different hydrogen energy rates (0%, 15%, 30%, and 45% hydrogen) according to thermic efficiency and emissions (CO, total unburned hydrocarbons, NOx, and smoke), and apart from NOx emissions, a significant improvement has been obtained. There was no increased NOx emission on 15% hydrogen working condition; however, on 45% hydrogen working condition, a dramatic increase arose.

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Vasilyev, Andrey. "AUTOMOBILE INTERNAL COMBUSTION ENGINE LOW FREQUENCY NOISE REDUCTION USING ACTIVE NOISE CONTROL SOLUTIONS". Akustika 34 (1 de noviembre de 2019): 113–17. http://dx.doi.org/10.36336/akustika201934113.

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Increased level of automobile low-frequency noise may cause significant environmental pollution, driver and passenger discomfort etc. For automobile equipped with internal combustion engine forming of either internal or external noise is mainly caused by engine operation. Approaches to automobile low-frequency noise reduction are suggested using active noise control method. The different variants of principal schemes and constructions of electronic units of forming required vibroacoustic characteristic of active noise control system were developed by the author either for complex noise reduction of experimental unit or for investigation of the separate noise sources reduction. Intercommunication of engine compartment and passenger compartment and coherent low-frequency sound radiation by air-suctioning pipe and exhaust pipe are taking into consideration. Construction of active noise control unit designed by author for complex reduction of exhaust and intake engine low-frequency noise is described. The results described in this paper may be useful for further development and application of constructions of active noise control systems as for efficient complex engine noise reduction or for reduction of the separate automobile engine noise sources.

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Zheng, Yi, Shi Xi Yang, Yi Zheng y Hong Guang Zhang. "Experimental Study on the Start Process for Compressed Natural Gas Engine". Advanced Materials Research 383-390 (noviembre de 2011): 6128–33. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6128.

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In this paper electronic control unit (ECU) used in vehicle-used compressed natural gas engine is developed independently. A series of start experiments are done with refitted JL465Q5 engine. Experimental monitoring system is developed as an interface connecting staff and single chip. Speed acquisition system is developed to record start process accurately in real time. The test results indicate that, more concentrated mixture is necessary when start speed is lower. Higher engine coolant temperature is conductive to cold start for natural gas engine. Multiple ignition control and ignition energy improvement is conductive to start successfully for natural gas engine. The results showed that electronic control unit (ECU) and speed acquisition system developed independently is practical and feasible.

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34

Koç, Tufan, Durmuş Karayel, Barış Boru, Vezir Ayhan, İdris Cesur y Adnan Parlak. "Design and Implementation of the Control System of an Internal Combustion Engine Test Unit". Advances in Mechanical Engineering 6 (1 de enero de 2014): 914876. http://dx.doi.org/10.1155/2014/914876.

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Accurate tests and performance analysis of engines are required to minimize measurement errors and so the use of the advanced test equipment is imperative. In other words, the reliable test results depend on the measurement of many parameters and recording the experimental data accurately which is depended on engine test unit. This study aims to design the control system of an internal combustion engine test unit. In the study, the performance parameters of an available internal combustion engine have been transferred to computer in real time. A data acquisition (DAQ) card has been used to transfer the experimental data to the computer. Also, a user interface has been developed for performing the necessary procedures by using LabVIEW. The dynamometer load, the fuel consumption, and the desired speed can easily be adjusted precisely by using DAQ card and the user interface during the engine test. Load, fuel consumption, and temperature values (the engine inlet-outlet, exhaust inlet-outlet, oil, and environment) can be seen on the interface and also these values can be recorded to the computer. It is expected that developed system will contribute both to the education of students and to the researchers’ studies and so it will eliminate a major lack.

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35

Yuhimenko, Vladimir, Dmitry Baimel, Moshe Sitbon, Moshe Averbukh, Simon Lineykin y Alon Kuperman. "Hybrid Internal Combustion Engine Based Auxiliary Power Unit". Micromachines 11, n.º 4 (21 de abril de 2020): 438. http://dx.doi.org/10.3390/mi11040438.

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The brief presents some principles of the ON/OFF operational strategy applied to energy management of a hybrid internal combustion engine (ICE) based auxiliary power unit (APU). It is shown that significant reduction of fuel consumption (78% for the example system presented) and maintenance expenses (80% operation time decrease was attained by the system) may be achieved by such a strategy, shifting the system operation point towards corresponding optimal region. The side effect of aggravated amount of starting events is cured by employing an actively balanced supercapacitor (SC)-based emergency starter (SCS). The SCS operates as short-time energy storage device, charging from the battery at a low rate and then providing a current burst required for proper internal combustion engine starting. Current sensorless method of automatic connection (based on bus voltage sensing) and disconnection (based on sensing the voltage across bidirectional MOSFET-based switch) of the SCS is also proposed. The proposed circuitry, successfully validated by experiments, may be arbitrarily scaled up or down according to application rating.

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PRZYBYŁA, Grzegorz, Bartłomiej RUTCZYK y Łukasz ZIÓŁKOWSKI. "Performance of micro CHP unit based on SI engine with quantitative-qualitative load control". Combustion Engines 178, n.º 3 (1 de julio de 2019): 82–87. http://dx.doi.org/10.19206/ce-2019-315.

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The paper presents data resulting by the preliminary experimental tests performed on a micro CHP (combined heat and power) 7 kWel unit. The engine load has been controlled by throttle position (quantitatively) or/and the value of air excess ratio (qualitatively) QQLC. By this way the engine efficiency can be improved in the range of partial loads by reducing the exergy losses during the inlet stroke. During the tests engine has been powered with LPG fuel. The engine performance together with environmental impact has been studied in this paper. Used method shows that despite the reduction of the load from 5.6 kW to 4.7 kW while burning the lean mixture, the efficiency of electricity generation increased slightly. The efficiency grew by approx. 1.41 percentage point comparing with the re-sults obtained for almost constant load but obtained by burning the lean mixture (λ = 1.3), followed by increased throttling and combus-tion of the stoichiometric mixture.

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37

Wan, Guo Qiang, Ying Huang, Fu Jun Zhang y Tao Cui. "Experimental Study on Engine Control Strategy during Gear Shifting for Vehicles Equipped with Automated Mechanical Transmission". Applied Mechanics and Materials 52-54 (marzo de 2011): 1199–205. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.1199.

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This paper presents an experimental study on engine control strategy during gear shifting for a Unimog U4000 equipped with an automated mechanical transmission (AMT) based on the controller area network (CAN) bus. First, an integrated powertrain control system based on the CAN bus is introduced. Second, the ideal AMT gear shifting process is described, and the engine control strategy during gear shifting is proposed. Then, the communication information for the engine control unit (ECU) and transmission control unit (TCU) during gear shifting is determined based on the SAE J1939 protocol. Finally, effectiveness is verified by the experimental results. The experimental results show that: engine control during gear shifting based on the CAN bus can meet the requirement for real-time operation; the engine control strategy presented in this paper during gear shifting can achieve good shift quality with shorter shifting time and less vehicle speed loss.

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38

Jiang, Fen y Zhen Hua Luo. "Electronic Control Unit Design of Artificial Neural Network-Based Natural Gas Engine". Advanced Materials Research 998-999 (julio de 2014): 617–20. http://dx.doi.org/10.4028/www.scientific.net/amr.998-999.617.

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For nonlinear gas engine control system, uncertainty and complexity, this paper proposed electrical control design using artificial neural networks to improve the performance of electric and gas engines.

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39

Ajmir, M. S., AB Elmi, A. Mohammad Nazir y J. Muhammad Nabil Asyraf. "Automated Spark Ignition Timing Controller (ASITC) For Internal Combustion Engine Control Unit". IOP Conference Series: Materials Science and Engineering 501 (9 de abril de 2019): 012012. http://dx.doi.org/10.1088/1757-899x/501/1/012012.

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40

Mayr, Christian H., Nikolaus Euler-Rolle, Martin Kozek, Christoph Hametner y Stefan Jakubek. "Engine control unit PID controller calibration by means of local model networks". Control Engineering Practice 33 (diciembre de 2014): 125–35. http://dx.doi.org/10.1016/j.conengprac.2014.09.006.

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41

Ham, Won K., Minsuk Ko y Sang C. Park. "A framework for simulation-based engine-control unit inspection in manufacturing phase". Control Engineering Practice 59 (febrero de 2017): 137–48. http://dx.doi.org/10.1016/j.conengprac.2016.12.001.

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42

Chen, Ling Shan, Xiang Er Huang, Pin Gan y Wei Cheng. "The Design of APU(Auxiliary Power Unit) Control Strategy". Advanced Materials Research 724-725 (agosto de 2013): 1440–43. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.1440.

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APU(Auxiliary Power Unit) control strategy was designed by the target of actual output power following the demanded power and the fuel consumption minimum. The preset demanded power of the entire vehicle has been decoupling controlled, using PID control algorithm to control the speed of the engine and vector control algorithm to control torque of generator, to realize decoupling control of the demanded power. Simulation result and bench test verified control strategy and achieved the goal of vehicle fuel saving 20% by nine “NEDC” cycles.

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43

Stetina, Josef, Michael Bohm y Michal Brezina. "Small Cogeneration Unit with Heat and Electricity Storage". Energies 14, n.º 8 (9 de abril de 2021): 2102. http://dx.doi.org/10.3390/en14082102.

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A micro cogeneration unit based on a three-cylinder internal combustion engine, Skoda MPI 1.0 L compressed natural gas (CNG), with an output of 25 kW at 3000 RPM is proposed in this paper. It is a relatively simple engine, which is already adopted by the manufacturer to operate on CNG. The engine life and design correspond to the original purpose of use in the vehicle. A detailed dynamic model was created in the GT-SUITE environment and implemented into an energy balance model that includes its internal combustion engine, heat exchangers, generator, battery storage, and water storage tank. The 1D internal combustion engine model provides us with information on engine start-up time, actual effective power, friction power, and the amount of heat going to the cooling system and exhaust pipe. The catalytic converter was removed from the exhaust pipe, and the engine was always operating at full load; thus, engine power control is not considered. An energy storage system for an island operation of the entire power unit for a large, detached house was designed to withstand accumulated energy for a few days in the case of a breakout. To reach a low initial system cost, the possible implementation of worn-out battery packs toward emission reduction in terms of the second life of the battery is proposed. The energy and emission balance are carried out, and the service life of the engine is also discussed.

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44

Wang, Bin, Hengyu Ji y Zhifeng Ye. "Simulation and semi-physical verification of fuel metering unit model for turboshaft aeroengine". Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 234, n.º 12 (22 de abril de 2020): 1866–82. http://dx.doi.org/10.1177/0954410020919634.

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When modeling an aeroengine control system, effects of fuel metering unit are neglected or oversimplified, which most probably leads to unreliable simulation or experimental results. In order to well understand influences of fuel metering unit on performance of an aeroengine and to enrich the component-level model of a turboshaft aeroengine, a stepping motor controlled fuel metering unit is examined by combining process-based modeling and object-oriented modeling and is employed in the component-level engine model. Performances of the engine with and without the fuel metering unit are compared by simulation. The component-level engine model with the fuel metering unit characteristics considered meets the simulation requirements on the steady precision and can describe dynamics of the engine more precisely. A semi-physical experimental verification is implemented to confirm the influence of the fuel metering unit. The results show that simulation using the component-level engine model with the fuel metering unit sub-model is in accordance with the experiment, and that comparing to the engine model without fuel metering unit, the model with a fuel metering unit can extend the performance parameter response dozens of milliseconds.

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45

Eckert, Jony Javorski, Fabio Mazzariol Santiciolli, Ludmila Corrêa de Alkmin e. Silva, Fernanda Cristina Corrêa y Franco Giuseppe Dedini. "Design of an Aftermarket Hybridization Kit: Reducing Costs and Emissions Considering a Local Driving Cycle". Vehicles 2, n.º 1 (11 de marzo de 2020): 210–35. http://dx.doi.org/10.3390/vehicles2010012.

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For decades, drivers and fleet managers have been impacted by the instability of fuel prices, the need to save resources and the duty to meet and attain environmental regulations and certifications. Aiming to increase performance and efficiency and reduce emissions and mileage costs, plug-in electric vehicles (PHEVs) have been pointed out as a viable option, but there are gaps related to tools that could improve the numerous existing conventional vehicles. This study presents the design of an aftermarket hybridization kit that converts a vehicle originally driven by a combustion engine into a PHEV. To achieve this goal, an optimization was conducted with the objective of decreasing the cost (regarding fuel consumption and battery charging) to perform a local driving cycle, while attenuating the tailpipe emissions and reducing the battery mass. The torque curves of the electric motors, the battery capacity, the parameters for a gear shifting strategy and the parameters for a power split control were the design variables in the optimization process. This study used the Campinas driving cycle, which was experimentally obtained in a real-world driving scenario. The use of a local driving cycle to tune the design variables of an aftermarket optimization kit is important to achieve a customized product according to the selling location. Among the optimum solutions, the best trade-off configuration was able to decrease the mileage cost in 22.55%, and reduce the tailpipe emissions by 28.4% CO, 33.55% NOx and 19.11% HC, with the addition of a 137 kg battery.

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46

Giardiello, Giovanni, Alfredo Gimelli y Francesco de Nola. "Engine Valvetrain Lift Prediction Using a Physic-based Model for The Electronic Control Unit Calibration". E3S Web of Conferences 197 (2020): 06015. http://dx.doi.org/10.1051/e3sconf/202019706015.

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The electronic control has an increasingly important role in the evolution of the internal combustion engine (ICE) and the vehicle. Research in the automotive sector, in this historical period, is dictated by three main guidelines: reducing polluting emissions and fuel consumption while maintaining high performance. The Electronic Control Unit (ECU) has made it possible, complicating the engine both in terms of architecture and in terms of strategies, controlling, through simplified functions, physical phenomena in an ever more precise way. The ECU functions are experimentally calibrated, reducing the error between the quantity estimated by the function and the experimental quantity over the entire operating range of the engine, developing extensive experimental campaigns. The calibration process of the ECU functions is one of the longest and most expensive processes in the development of a new vehicle. Some lines of research have been explored to reduce the experimental tests to be carried out on the test bench. The use of neural networks (NN) has proven to be effective, leading to a reduction in experimental tests from 40 to 60%. Another methodology consists in the use of 1D/0D Thermo-fluid dynamic models of the ICE. These models are used as virtual test benches and through them it is possible to carry out the experimental campaigns necessary for the calibration of the control unit functions. At the real test bench, only the few experimental tests necessary for the validation of the model must be carried out. One of the simplifications that is usually made in the 1D/0D ICE models consists in assigning a single intake and exhaust valve lift, without taking into account the effect of the engine speed on the valve lift in early intake valve closure (EIVC) mode for engines equipped with VVA. This phenomenon has a not negligible effect on engine performance, especially at high engine speeds. In the case of engine models equipped with VVA, the valve lift cannot be imposed, since it is unique for each closing angle at each engine speed. Indeed, in order to assign the correct valve lift for a given engine speed and EIVC, numerous experimental tests should be carried out, making vain the beneficial effects of the method. In this work, the authors propose the use of a 0D/1D CFD model of the entire electro-hydraulic valvetrain VVA module, coupled with 1D lumped mass for reproducing the linear displacements of the intake valve, and for simulating the interactions between flow and mechanical systems of the solenoid hydro-mechanical valve. Thus, model simulations allow to predict the valve lift in all the necessary conditions in the experimental campaigns for the calibration of the control unit functions. Starting from geometric valvetrain data, the model has been validated with a parametric analysis of some variables on which there was greater uncertainty, by comparing the valve lift obtained by the model with the experimental ones in certain engine speeds. Subsequently, the authors have obtained the valve lifts in conditions not used for model validation, comparing them with their respective experimental lifts. The model has proven to be sensitive to the effect of the variation of the engine speed, reproducing the valve lift with a low error. In this way it is possible to reduce the experimental effort aimed to the calibration process considering that the virtual experimental campaign has proven to be reliable.

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47

Qiao, An-Ping, Yun-Qing Li y Feng Gao. "Original design of coal-bed gas/air control units for engine-generator sets". Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 220, n.º 2 (1 de marzo de 2006): 179–84. http://dx.doi.org/10.1243/095765005x69206.

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An original air/fuel automatic mixing control unit for a coal-bed gas internal combustion engine and its matching generator, which is different from the conventional one, is introduced. The basic design and calculation method of this novel unit are explained. On the basis of these, the units of the 12V190ZDT type engine-generator sets are calculated and designed, machined, and trial-produced. A year's service-test at the Centre of West Coal Mine Construction shows that the performances of these devices are stable and reliable, and that this method could solve many practical problems that the old unit could not; for instance, working with mid-low concentration of coal-seam gas. They also fill a gap in the field of design, calculation, development, and application of coal-bed gas devices; the economic and social benefits are also truly remarkable. Therefore, the design and calculation method obtained in this article are important for engineering applications. This paper also offers a theoretical basis for the design and development of coal-seam gas engines or sets of engine-generator.

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48

Chan, KinYip, Andrzej Ordys, Konstantin Volkov y Olga Duran. "Comparison of Engine Simulation Software for Development of Control System". Modelling and Simulation in Engineering 2013 (2013): 1–21. http://dx.doi.org/10.1155/2013/401643.

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Most commonly used commercial engine simulation packages generate detailed estimation of the combustion and gas flow parameters. These parameters are required for advanced research on fluid flow and heat transfer and development of geometries of engine components. However, engine control involves different operating parameters. Various sensors are installed into the engine, the combustion performance is recorded, and data is sent to engine control unit (ECU). ECU computes the new set of parameters to make fine adjustments to actuators providing better engine performance. Such techniques include variable valve timing, variable ignition timing, variable air to fuel ratio, and variable compression ratio. In the present study, two of the commercial packages, Ricardo Wave and Lotus Engine Simulation, have been tested on the capabilities for engine control purposes. These packages are compared with an in-house developed package and with reference results available from the literature. Different numerical experiments have been carried out from which it can be concluded that all packages predict similar profiles of pressure and temperature in the engine cylinder. Moreover, those are in reasonable agreement with the reference results while in-house developed package is possible to run simulations with changing speed for engine control purpose.

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Ganji, A. R. "Environmental and Energy Efficiency Evaluation of Residential Gas and Heat Pump Heating". Journal of Energy Resources Technology 115, n.º 4 (1 de diciembre de 1993): 264–71. http://dx.doi.org/10.1115/1.2906431.

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Energy efficiency and source air pollutant emission factors of gas heaters, gas engine heat pumps, and electric heat pumps for domestic heating have been evaluated and compared. The analysis shows that with the present state of technology, gas engine heat pumps have the highest energy efficiency followed by electric heat pumps and then gas heaters. Electric heat pumps produce more than twice as much NOx, and comparable CO2 and CO per unit of useful heating energy compared to natural gas heaters. CO production per unit of useful heating energy from gas engine heat pumps without any emission control is substantially higher than electric heat pumps and natural gas heaters. NOx production per unit of useful heating energy from natural gas engine heat pumps (using lean burn technology) without any emission control is about the same as effective NOx production from electric heat pumps. Gas engine heat pumps produce about one-half CO2 compared to electric heat pumps.

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Wasilewski, Jacek, Joanna Szyszlak-Bargłowicz, Grzegorz Zając y Małgorzata Szczepanik. "Assessment of Co2 Emission by Tractor Engine at Varied Control Settings of Fuel Unit". Agricultural Engineering 24, n.º 4 (1 de diciembre de 2020): 105–15. http://dx.doi.org/10.1515/agriceng-2020-0040.

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Abstract The paper presents results of experimental studies concerning CO2 emission of S-4003 diesel engine Ursus C-360 at a variable fuel injection advance angle and opening pressure of injectors. Measurements were made on the dynamometric stand on the test bench. The engine operated according to the load characteristic at two characteristic rotational speeds i.e., at the maximum torque velocity (1600 rpm) and at the rated speed (2200 rpm). In each measurement point of load characteristics, CO2 concentration was measured in exhaust gases with the use of exhaust gases analyser M-488 Multigas Plus. For a more detailed analysis of the CO2 content in exhaust gases, additional change of O2 level emission was presented, which in the biggest amount combines elementary carbon included in fuel during combustion. The studies showed the CO2 content reduction in exhaust gases at the reduced (by 3º of crankshaft rotations) fuel injection advance angle in comparison to the nominal angle by 4.5% at the rotational speed of 1600 rpm and by 5.7% at the speed of 2200 rpm (the average values for all measurement points of load - brake horsepower of engine). Similarly, CO2 concentration decrease in exhaust gases of the investigated engine was reported for the increased (by 1.5 MPa) opening pressure of injectors in comparison to the nominal pressure, on average by 9.8% for the speed of the maximum rotational moment and by 4.5% for the rated speed.

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