Vehicle stability and steerability control via electronic torque distribution
    64.
    发明授权
    Vehicle stability and steerability control via electronic torque distribution 有权
    通过电子扭矩分配进行车辆稳定性和可操纵性控制

    公开(公告)号:US08504238B2

    公开(公告)日:2013-08-06

    申请号:US12761913

    申请日:2010-04-16

    IPC分类号: B60W10/00

    摘要: A system for distributing propulsion to front and rear axles of a vehicle includes: a front axle motor coupled to the front axle and a rear axle motor coupled to the rear axle. An electronic control unit (ECU) electronically coupled to the motors commands the rear axle motor to increase torque supplied to the rear axle during understeer and commands the front axle motor to increase torque supplied to the front axle during oversteer. A method to distribute propulsion to front and rear axles of a vehicle includes estimating actual yaw rate, estimating desired yaw rate, providing electrical energy to the front axle motor during oversteer, and providing electrical energy to the rear axle motor during understeer. Additionally, electrical energy may be extracted from the rear axle motor during oversteer and electrical energy may be extracted from the front axle motor during understeer.

    摘要翻译: 用于向车辆的前轴和后轴分配推进的系统包括:联接到前轴的前桥马达和联接到后桥的后桥马达。 电动联接到马达的电子控制单元(ECU)命令后桥马达来增加在转向不足期间提供给后桥的扭矩,并且指令前桥马达在过度转向期间增加提供给前桥的扭矩。 将推进分配到车辆的前轴和后轴的方法包括估计实际横摆率,估计期望的偏航速率,在过度转向期间向前桥电机提供电能,以及在转向不足期间向后桥马达提供电能。 此外,在过度转向时,可以从后桥马达提取电能,并且在转向不足期间可以从前桥马达中提取电能。