摘要
针对双电机后轮驱动混合动力汽车电子差速的控制问题,考虑车辆转向时轴荷转移、向心力和轮胎侧偏角的影响,以车轮的滑移率为控制目标,提出了基于门限值控制的电子差速控制策略,并在Matlab/Simulink环境下进行了仿真。结果表明,该电子差速控制系统可在车辆直线行驶和转弯时将滑移率控制在最佳范围内,使车辆能按照预定方向稳定行驶。
In view of the control problem of electronic differential （ED） system in a hybrid electric vehicle with dual in-wheel-motor rear drive and considering the effects of axle load transfer, centripetal force and tire slip angle, a ED control strategy based on threshold control is proposed with the slip ratio of tire as control objective, and a simulation is conducted. The results show that the ED control system proposed can keep tire slip ratio within the optimum range, ensuring the stable driving of vehicle along preset direction either on straight road or curved one.
出处
《汽车工程》
EI
CSCD
北大核心
2013年第1期46-50,共5页
Automotive Engineering
关键词
混合动力汽车
电子差速
车轮滑转率
门限值控制
hybrid electric vehicle
electronic differential
wheel slip ratio
threshold control
