New TA Index-Based Rollover Prevention System for Electric Vehicles

Energies

Xiang Liu¹  Min Xu¹  Mian Li¹ 

[1]National Engineering Laboratory for Automotive Electronic Control Technology, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

[2] E-Mails:

关键词: electric vehicle;    TA index;    rollover;    in-wheel motor;    dynamic control;   

DOI  :  10.3390/en8032008

来源: mdpi

【 摘 要 】

In addition to clean transportation and energy savings, electric vehicles can inherently offer better performance in the field of active safety and dynamic stability control, thanks to the superior fast and accurate control characteristics of electric motors. With the novel wheel status parameter TA for electric vehicles proposed by the authors in an earlier publication, a new TA index (TAI)-based rollover prevention method is presented in this paper to improve the driving performance of EVs equipped with in-wheel motors. A three-level electric vehicle control structure is used to analyze the effective control steps for rollover prevention with the newly proposed TAI method. The simulation is conducted using an in-house developed electric vehicle dynamic model. The simulation results prove the feasibility of using TAI to detect rollover. The experiment uses an electric vehicle equipped with four in-wheel motors in the authors’ research lab. The vehicle parameter and performance data are imported to CarSim, which is industrial standard vehicle dynamic analysis software to run the rollover test. The experimental results also demonstrate that TAI is an effective method of rollover prevention.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.