The invention provides a rotor temperature estimation method, an electric vehicle and a readable storage medium. The rotor temperature estimation method is applied to the electric vehicle, the electric vehicle charges a battery based on a Boost mode realized by a motor and a controller, and the rotor temperature estimation method comprises the following steps: calculating based on a first model; the calculation step of the first model comprises the step of obtaining the self loss of the rotor based on the Boost input side voltage, the Boost output side voltage and the Boost current. According to the configuration, on one hand, the rotor temperature estimation method of the electric vehicle under the boost charging working condition is provided; on the other hand, the influence of the Boost mode on the rotor thermodynamic model is considered, and the matching degree with the actual situation is high; therefore, the problems that in the prior art, a rotor temperature estimation method under the boost charging working condition is lacked, so that the rotor faces the demagnetization risk, and temperature initial values are lacked under other working conditions are solved.
本发明提供了一种转子温度估算方法、电动车辆及可读存储介质。其中,所述转子温度估算方法应用于电动车辆,所述电动车辆基于电机和控制器实现的Boost升压方式为电池充电,所述转子温度估算方法包括:基于第一模型计算;所述第一模型的计算步骤包括:基于Boost输入侧电压、Boost输出侧电压以及Boost电流得到转子自身损耗。如此配置,一方面提供了所述电动车辆在升压充电工况下的转子温度估算方法;另一方面考虑了Boost升压方式对转子热力学模型的影响,与现实情况吻合程度高;从而解决了现有技术中缺乏针对升压充电工况下的转子温度估算方法,从而导致转子面临退磁风险以及其他工况下缺乏温度初始值的问题。
Rotor temperature estimation method, electric vehicle and readable storage medium
转子温度估算方法、电动车辆及可读存储介质
2022-07-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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