吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (4): 1207-1216.doi: 10.13229/j.cnki.jdxbgxb201704028

• Orginal Article • Previous Articles     Next Articles

Start-stop control of hybrid vehicle based on nonlinear method

HU Yun-feng1, 2, 3, GU Wan-li2, LIANG Yu2, DU Le2, YU Shu-you1, 2, CHEN Hong1, 2   

  1. 1.State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2.College of Communication Engineering, Jilin University, Changchun 130022, China;
    3.Key Laboratory of Bionic Engineering Ministry of Education, Changchun 130022,China
  • Received:2015-07-10 Online:2017-07-20 Published:2017-07-20

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Abstract:

First,the start-stop operation mechanism of hybrid vehicle is analyzed, and an AMESim simulation model is established, which can reflect the transient dynamics of the start-stop process. Second, according to the working principle of the engine start-stop system, the start-stop control problem is described as a speed tracking problem, and a simplified control-oriented model of the engine and motor coupling is proposed. Third, based on the nonlinear characteristics of the system, a nonlinear triple-step controller is designed, and the robust stability of the closed-loop system is analyzed using the input to state stability theory. Finally, the effectiveness and robustness of the triple-step controller is tested by co-simulation with AMESim and MATLAB/Simulink. Results show that the proposed control system can achieve fast and smooth start-stop of the engine.

Key words: automatic control technology, vehicle engineering, start-stop control, hybrid electric vehicle, nonlinear triple-step, robustness

CLC Number: 

  • TP273
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