The invention relates to a temperature control method and system for a vehicle motor system and a vehicle, and the temperature control method comprises the steps: obtaining the rotating speed and torque of the vehicle motor system, and then obtaining the heating power of the motor system; obtaining the heat dissipation power when the water pump fan does not work, and integrating the difference value between the heating power and the heat dissipation power under the condition to obtain excess heat; if the surplus heat is greater than the heat threshold value, the heat dissipation power and the power consumption power under the condition that a water pump works and a fan does not work and the heat dissipation power and the power consumption power under the condition that the water pump and the fan work are used, and the heat dissipation energy under the two conditions is equal to the surplus heat, and the total power consumption under the two conditions is minimum. And working durations corresponding to the two conditions are obtained, so that the water pump fan is controlled based on the obtained working durations. According to the temperature control method, the problems that in the prior art, due to the fact that the heating condition of the motor system cannot be accurately reflected, the driving safety of the vehicle is reduced, and energy consumption is large can be solved.
本发明涉及一种车辆电机系统的温控方法、系统及车辆,该温控方法包括获取车辆电机系统的转速和扭矩,进而获得电机系统的发热功率;获取水泵风扇均不工作时的散热功率,对发热功率和该情况下的散热功率的差值进行积分得到多余热量;若多余热量大于热量阈值,则利用水泵工作风扇不工作情况下的散热功率和耗电功率,水泵风扇均工作情况下的散热功率和耗电功率,在满足该两种情况下的散热能量等于多余热量,以及该两种情况下的总耗电量最小的条件下,获得该两种情况对应的工作时长,从而基于获得的工作时长对水泵风扇进行控制。根据本发明的温控方法中,能够解决现有技术中不能准确反映电机系统的发热情况导致的车辆行车安全性降低且能耗较大的问题。
Temperature control method and system of vehicle motor system and vehicle
一种车辆电机系统的温控方法、系统及车辆
2023-05-09
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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