The invention provides a slope starting auxiliary control method and device of an electric vehicle and the electric vehicle. The electric vehicle comprises a first electric drive axle and a second electric drive axle. The slope starting auxiliary control method comprises the steps that an initial slope holding torque is received; according to the initial hill-holding torque, torque distribution is conducted on the first electric drive bridge and the second electric drive bridge, the first electric drive bridge is controlled to output first torque, and the second electric drive bridge is controlled to output second torque; the sum of the first torque and the second torque is the initial hill-holding torque; after torque distribution, the current vehicle speed of the electric vehicle is obtained; if the current vehicle speed is zero, the first electric drive axle and the second electric drive axle are controlled to keep the current output torque; and if the current vehicle speed is not zero, the first electric drive axle is controlled to keep the current output torque, and the second electric drive axle is controlled to output the corresponding torque when the rotating speed of the second electric drive axle is zero, so that the electric vehicle is kept in a slope parking state. The slope starting assisting function can be achieved at low cost.
本申请提供一种电动汽车的坡起辅助控制方法、装置及电动汽车。电动汽车包括第一电驱桥和第二电驱桥。坡起辅助控制方法包括:接收初始驻坡扭矩;按照初始驻坡扭矩,对第一电驱桥和第二电驱桥进行扭矩分配,控制第一电驱桥输出第一扭矩,且控制第二电驱桥输出第二扭矩;第一扭矩、第二扭矩之和为初始驻坡扭矩;在进行扭矩分配之后,获取电动汽车的当前车速;若当前车速为零,控制第一电驱桥和第二电驱桥保持当前输出的扭矩;若当前车速不为零,控制第一电驱桥保持当前输出的扭矩,并控制第二电驱桥输出当第二电驱桥的转速为零时对应的扭矩,使电动汽车保持驻坡状态。本申请可以低成本地实现坡起辅助功能。
Slope starting auxiliary control method and device of electric automobile and electric automobile
电动汽车的坡起辅助控制方法、装置及电动汽车
21.03.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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