The invention relates to a temperature control method of an electric automobile, in particular to an IGBT temperature control method and device for a motor controller of the electric automobile, and solves the technical problems of insufficient cooling of an IGBT module of the motor controller, poorer heat dissipation performance and difficulty in controlling the temperature of the IGBT module inthe prior art. According to the invention, the comprehensive parameters of IGBT temperature, motor controller output current, IGBT enabling, gradient, motor target torque, motor rotating speed and gearbox gears are calculated, the temperature control target temperature is calculated and set, the temperature of the IGBT module is effectively controlled to be kept within the optimal working temperature range, different temperature control target temperatures are set for different power sections, a radial basis function neural network algorithm and a fuzzy PID control method are adopted for improving the temperature control precision, so that the temperature is kept within the optimal working temperature range. Meanwhile, the invention further provides an electric vehicle motor controller IGBT temperature control device based on the method, and the device comprises a semiconductor chilling plate, a radiator and a temperature control unit.
本发明涉及电动汽车的温度控制方法,具体涉及一种电动汽车电机控制器IGBT温度控制方法和装置,解决现有技术存在对电机控制器IGBT模组冷却不足,散热性较差,难以控制IGBT模组温度的技术问题。本发明通过解算IGBT温度、电机控制器输出电流、IGBT使能、坡度、电机目标扭矩、电机转速和变速箱档位的综合参数,计算并设定控温目标温度,有效控制IGBT模组的温度,使其保持在最佳工作温度范围,并且不同功率段设定不同的控温目标温度,采用径向基函数神经网络算法以及模糊PID控制方法提高控温精度,使其保持在最佳工作温度范围。同时,本发明还提出了基于上述方法的电动汽车电机控制器IGBT温度控制装置,包括半导体制冷片、散热器以及控温单元。
IGBT temperature control method and device for motor controller of electric vehicle
一种电动汽车电机控制器IGBT温度控制方法和装置
2020-11-10
Patent
Elektronische Ressource
Chinesisch
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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