The invention provides a method and system for preventing overtemperature of a driving motor and a vehicle, and belongs to the technical field of vehicles, and the method for preventing overtemperature of the driving motor comprises the steps that in the uphill process of the vehicle, current driving parameters of the vehicle are obtained, and the driving parameters comprise the gradient of a road where the vehicle is located; based on the current driving parameters, the target maximum limit value of output power of the driving motor is determined, and the output power comprises output power and/or output torque; for the same output power, the target maximum limit values corresponding to different driving parameters are different; and controlling the output power to work at the target maximum limit value or below the target maximum limit value. The situation that heat energy generated by the driving motor is larger than the heat dissipation capacity of the cooling system can be avoided, the situation that the temperature of the driving motor reaches the maximum limit value in the uphill process of the vehicle is avoided, power loss of the vehicle due to the fact that the driving motor stops working is prevented, and it is guaranteed that the vehicle continuously runs on the ramp.
本申请提供了一种防止驱动电机过温的方法、系统及车辆,属于车辆技术领域,防止驱动电机过温的方法包括:在车辆上坡的过程中,获取车辆当前的行驶参数,行驶参数包括所处道路的坡度;基于当前的行驶参数,确定驱动电机的输出动力的目标最大限值,输出动力包括输出功率和/或输出扭矩;对于同一种输出动力,不同的行驶参数对应的目标最大限值不尽相同;控制输出动力工作在目标最大限值或目标最大限值之下。本申请可以避免驱动电机产生的热能大于冷却系统散热能力的情况发生,以及避免驱动电机的温度在车辆上坡过程中到达最大限值,防止车辆因驱动电机停止工作而发生动力丢失,保证了车辆在坡道上持续行驶。
Method and system for preventing over-temperature of driving motor and vehicle
一种防止驱动电机过温的方法、系统及车辆
23.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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