Dynamic coordinated control method of driving mode switch of parallel hybrid electric vehicle

WANG Wei-hua; WANG Wen-kai; FENG Bo; FAN Yong-kai

Volume 17 Issue 2

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WANG Wei-hua, WANG Wen-kai, FENG Bo, FAN Yong-kai. Dynamic coordinated control method of driving mode switch of parallel hybrid electric vehicle[J]. Journal of Traffic and Transportation Engineering, 2017, 17(2): 90-97.

Citation:

WANG Wei-hua, WANG Wen-kai, FENG Bo, FAN Yong-kai. Dynamic coordinated control method of driving mode switch of parallel hybrid electric vehicle[J]. Journal of Traffic and Transportation Engineering, 2017, 17(2): 90-97.

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Dynamic coordinated control method of driving mode switch of parallel hybrid electric vehicle

1.
State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, Jilin, China
2.
China Automobile Technology and Research Center, Tianjin 300300, China

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Author Bio:
WANG Wei-hua(1971-), male, professor, PhD, +86-431-85094866, wwh_jlu@126.com
Received Date: 2016-11-23
Publish Date: 2017-04-25

Abstract

Abstract

In the driving mode switch of parallel hybrid electric vehicle (HEV), a control method of motor torque compensation was put forward based on the PID control of the difference of wheel angular velocity, and the control objective was that the demand torque of vehicle power did not fluctuate and vehicle speed steadily followed its expectation. The frequency-domain characteristics of HEV driveline in the mode switch were analyzed.Based on the difference between actual and expected angular velocity of wheel, the compensation torque was computed by the PID closed-loop control and provided by the permanent magnet synchronous motor (PMSM) to solve the dynamic coordinated control problem of two kinds of power sources in mode switch.A HEV dynamic coordinated control model was built by using two simulation platforms of AVL Cruise and MATLAB, and the control method was simulated and verified by using the control model.Simulation result shows that compared with the mode switch without dynamic coordinated control, when the dynamic coordinated control method is used, the response time of total output torque reduces from 0.90 s to 0.08 s, the control precision of total output torqueincreases by 11.1%, the precision of following expected speed increases by 8.0%, and vehicle's power performance increases by 4.4%.Obviously, the dynamic coordinated control method reduces the fluctuation of total output torque during HEV mode switch, improves the following precision of speed, and effectively guarantees the power performance and driving comfort of vehicle.
- automotive engineering,
- hybrid electric vehicle,
- mode switch,
- torque compensation,
- dynamic coordinated control

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References(24)

References

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