Study on Active Suppression Control of Drivetrain Oscillations in an Electric Vehicle

4th International Conference on Mechanics and Mechatronics Research

机械制造;无线电电子学

Huang, Lei^1 ; Cui, Ying^2

Tianjin Key Laboratory of Information Sensing and Intelligent Control, School of Automation and Electrical Engineering, Tianjin University of Technology and Education, Tianjin, China^1

Urban Communications Engeneering CO.LTD, CCCC First Harbor Engeneering CO.LTD, Tianjin, China^2

关键词: Acceleration rates;    Active damping controls;    Damping control;    Motor speed;    Passive damping;    Suppression control;    Torsional vibration;    Vehicle controller;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/224/1/012004/pdf
DOI  :  10.1088/1757-899X/224/1/012004

来源: IOP

【 摘 要 】

Due to the low damping in a central driven electric vehicle and lack of passive damping mechanisms as compared with a conventional vehicle, the vehicle may endure torsional vibrations which may deteriorates the vehicle's drivability. Thus active damping control strategy is required to reduce the undesirable oscillations in an EV. In this paper, the origin of the vibration and the design of a damping control method to suppress such oscillations to improve the drivability of an EV are studied. The traction motor torque that is given by the vehicle controller is adjusted according to the acceleration rate of the motor speed to attenuate the resonant frequency. Simulations and experiments are performed to validate the system. The results show that the proposed control system can effectively suppress oscillations and hence improve drivability.