轮毂驱动电动汽车转向行驶时驱动方案的研究

相比于市面上已比较成熟的中央电机驱动电动汽车,轮毂驱动电动汽车底盘更加简单,省去传统的传动链,每个车轮分别由一独立电机直接驱动。如此一来,汽车转向行驶时,车轮之间的差速,就必须通过控制各电机的输出转速来进行控制。以装有完整齿轮齿条转向机构的全轮毂驱动四轮电动汽车为研究对象,结合传统四轮驱动汽车,转向行驶时四轮的速度关系,分别对两轮转向和四轮转向两种情况下的驱动方案进行研究。

RESEARCH ON THE DRIVE SCHEME OF ALL WHEEL DRIVE ELECTRIC CARS

Compared to the central motor driven electric vehicle on the market which has been more mature, wheel drive electric vehicle chassis is simpler and save the traditional transmission chain, which each wheel driven directly by a separate motor. When the car is driven, the differential between the wheels have to compete by controlling the output of the motor speed. We have taken complete gear rack steering mechanism of four-wheel electric vehicle who driven by all wheels as the research object. Combined with the driving speed of traditional four-wheel drive vehicle, we also studied the four each of two wheel steering and four-wheel steering driving scheme.