The invention relates to a whole vehicle control method, a whole vehicle control system and a vehicle. Robustness of the vehicle can be improved, and a safety risk caused by power interruption especially under a high-speed working condition can be reduced. The method comprises the steps that a battery management system detects a state of a high-voltage battery system; when the state indicates thata fault level of a high-voltage relay needs to be disconnected in the high-voltage battery system, the battery management system reports the fault level to a vehicle control unit; after the vehicle control unit receives the fault level, a high-pressure air conditioner, a high-pressure heater, a DC/DC converter and a rear-drive motor system are immediately closed; a precursor motor system is synchronously controlled to enter a bus voltage mode and the battery management system is controlled to disconnect the high-voltage relay; and after the precursor motor system stabilizes a high voltage tomeet the voltage required by operation of the DC/DC converter, the vehicle control unit also enables the DC/DC converter and the rear-drive motor system to carry out zero-torque control.
本公开涉及一种整车控制方法、整车控制系统和一种车辆,能够提升车辆鲁棒性并降低尤其是高速工况中由于动力中断产生的安全风险。该方法包括:电池管理系统检测高压电池系统的状态;在所述状态表明所述高压电池系统出现需要断开高压继电器的故障等级时,所述电池管理系统将所述故障等级上报给整车控制器;所述整车控制器接收到所述故障等级之后,立即关闭高压空调、高压暖风、DC/DC转换器和后驱电机系统,同步控制前驱电机系统进入母线电压模式,并控制所述电池管理系统断开高压继电器,在所述前驱电机系统将高压稳压在满足所述DC/DC转换器工作所需的电压之后所述整车控制器还使能所述DC/DC转换器并控制所述后驱电机系统进行零扭矩控制。
Whole vehicle control method, whole vehicle control system and vehicle
整车控制方法、整车控制系统和一种车辆
2020-09-04
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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