The present disclosure provides a drive system for a four-wheel drive vehicle capable of suppressing the behavior of the vehicle from becoming unstable when the motor-type four-wheel drive vehicle is decelerated. A drive system for an electric motor type four-wheel drive vehicle having a friction brake system includes: a first electric motor and a second electric motor; a transmission shaft; a first differential mechanism connected to the first motor and distributing an output torque of the first motor to a left wheel on one side of the front wheel side or the rear wheel side and to the other side of the front wheel side or the rear wheel side; a second differential mechanism which is connected to the second motor and distributes the output torque of the second motor to the right wheel on one side of the front wheel side or the rear wheel side and the other side of the front wheel side or the rear wheel side; and a control device that controls regenerative braking force generated by regeneration of the first motor and the second motor and friction braking force generated by the friction braking system, in which the first differential mechanism and the second differential mechanism are each provided so that the distribution ratio of the output torque to the front wheel side is 50% or more.
本公开提供一种在电动机式四轮驱动车减速时能够抑制车辆举动变得不稳定的四轮驱动车的驱动系统。具有摩擦制动系统的电动机式四轮驱动车的驱动系统具有:第一电动机和第二电动机;传动轴;第一差动机构,其与第一电动机连接,向前轮侧或后轮侧中的一侧的左轮,以及前轮侧或后轮侧中的另一侧分配第一电动机的输出扭矩;第二差动机构,其与第二电动机连接,向前轮侧或后轮侧中的一侧的右轮,以及前轮侧或后轮侧中的另一侧分配第二电动机的输出扭矩;控制装置,其对第一电动机和第二电动机的再生所产生的再生制动力,以及摩擦制动系统产生的摩擦制动力进行控制,其中,第一差动机构和第二差动机构分别设置成对前轮侧的输出扭矩的分配比为50%以上。
Drive system of four-wheel drive vehicle
四轮驱动车的驱动系统
2023-11-21
Patent
Elektronische Ressource
Chinesisch
Europäisches Patentamt | 2018
|Europäisches Patentamt | 2018
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