A vehicle includes a system that performs a method of derating an electric motor of the vehicle. The system includes a timer and a processor. The processor is configured to start a timer when a temperature of a stator of the electric motor exceeds a high temperature threshold, select a mixing ratio based on a time value on the timer, an intermediate derating curve of the motor is determined by interpolating between a first derating curve associated with the first target temperature and a second derating curve associated with a second target temperature greater than the first target temperature using the mix ratio, and the motor is derated along the intermediate derating curve.
车辆包括执行使车辆的电动机降额的方法的系统。该系统包括计时器和处理器。处理器被配置为当电动机的定子的温度超过高温阈值时启动计时器,基于计时器上的时间值选择混合比,使用所述混合比通过在与第一目标温度相关联的第一降额曲线和与大于第一目标温度的第二目标温度相关联的第二降额曲线之间进行插值来确定电动机的中间降额曲线,并且沿着中间降额曲线使电动机降额。
Increasing motor torque capacity by time-based thermal derating
通过基于时间的热降额提高电动机扭矩容量
2025-05-30
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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