The invention provides a safety state control method and device of a motor controller, equipment and a medium. The method comprises the steps that the current voltage and the current rotating speed of a motor are acquired; determining a target switching point representing the safety state of the motor controller according to the current voltage and a preset output torque curve graph; determining a first switching rotating speed corresponding to the target switching point based on a preset output torque curve graph; comparing the current rotating speed with the first switching rotating speed for the first time; and adjusting the current safety state of the motor controller to a target safety state according to the first comparison result, wherein the target safety state comprises an open circuit protection safety state and an active protection safety state. The target switching point of the safe state is determined in real time through the current voltage and the output torque curve graph, the target switching points under different voltages are different, the target safe state of the motor controller is controlled in combination with the current rotating speed, zero torque or safe braking torque can be guaranteed, damage to devices can be avoided, and the safety and controllability of the vehicle are improved.
本申请提供一种电机控制器的安全状态控制方法、装置、设备及介质,该方法包括:获取电机的当前电压和当前转速;根据当前电压和预设输出扭矩曲线图确定表征电机控制器安全状态的目标切换点;基于预设输出扭矩曲线图确定目标切换点对应的第一切换转速;将当前转速与第一切换转速进行一次比较;根据第一比较结果将电机控制器的当前安全状态调整为目标安全状态,目标安全状态包括开路保护安全状态和主动保护安全状态。通过当前电压、输出扭矩曲线图实时确定安全状态的目标切换点,使得不同电压下目标切换点不同,再结合当前转速,控制电机控制器的目标安全状态,既能保证零扭矩或安全制动扭矩,又能避免器件的损坏,提高了车辆的安全性和可控性。
Safety state control method and device of motor controller, equipment and medium
电机控制器的安全状态控制方法、装置、设备及介质
11.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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