Modeling and control of engine starting for a full hybrid electric vehicle based on system dynamic characteristics |
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| Authors: | Yonggang Liu Daqi Chen Zhenzhen Lei Datong Qin Yi Zhang Rui Wu Yong Luo |
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| Institution: | 1.State Key Laboratory of Mechanical Transmissions & School of Automotive Engineering,Chongqing University,Chongqing,China;2.Key Laboratory of Advanced Manufacture Technology for Automobile Parts, Ministry of Education,Chongqing University of Technology,Chongqing,China;3.Department of Mechanical Engineering,University of Michigan-Dearborn,Washington,USA |
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| Abstract: | This paper focuses on the dynamic modeling and control of engine starting for a Full Hybrid Electric Vehicle (FHEV) consisting of an Integrated Starter Generator (ISG) and Dual Clutch Transmissions (DCTs). The dynamic characteristics of the engine, the ISG motor and the main clutch are analyzed respectively. The dynamic models of the main components of the powertrain system are also established taking the system dynamic characteristics into consideration. The FHEV dynamic model of engine starting during electric driving mode has been investigated in detail. The coordinated control strategy of engine starting has been proposed based on the powertrain system dynamic characteristics. The simulation for the engine starting control during electric driving mode has been performed based on the Matlab/Simulink platform. The simulation results show that the proposed control strategy satisfies the requirements of response and smoothness during engine starting process. Furthermore, a bench test has been carried out to analyze the system characteristics during engine starting process. The test data is highly agreeable to the simulation data and the effectiveness of engine starting control strategy is validated by the comparison between simulation results and the test data. |
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