The invention discloses a vehicle and a motor controller system thereof. The system comprises a three-phase current sensor; a resolver; a driving circuit; an inverter circuit; a motor; turning off the path sub-circuit; the main processor is used for generating and outputting a first PWM control instruction to the driving circuit according to a motor three-phase current signal, a motor position signal and a motor torque instruction, so that the driving circuit performs driving control on the motor through the inverter circuit; the output torque of the motor is estimated according to the motor position signal and the motor three-phase current signal, and when the output torque is abnormal, a non-enable signal is output to the driving circuit, so that the driving circuit stops driving control on the motor through the inverter circuit; when the main processor hardware is detected to be abnormal, the turn-off path sub-circuit outputs an active short-circuit signal to the driving circuit, so that the driving circuit stops driving control on the motor through the inverter circuit, and the system is ensured to enter a safe state through the above three-stage turn-off path when an event violating a functional safety target occurs, so that the system safety is ensured.
本发明公开一种车辆及其电机控制器系统,系统包括:三相电流传感器;旋转变压器;驱动电路;逆变器电路;电机;关断路径子电路;主处理器用于:根据电机三相电流信号、电机位置信号和电机扭矩指令生成并输出第一PWM控制指令至驱动电路,使其通过逆变器电路对电机进行驱动控制;根据电机位置信号和电机三相电流信号估算电机的输出扭矩,并在输出扭矩异常时,输出非使能信号至驱动电路,使其通过逆变器电路停止对电机的驱动控制;在检测到主处理器硬件异常时,关断路径子电路输出主动短路信号至驱动电路,使其通过逆变器电路停止对电机的驱动控制,保证系统在发生违背功能安全目标的事件时,能够通过以上三级关断路径进入到安全状态,保证系统安全。
Vehicle and motor controller system thereof
车辆及其电机控制器系统
2023-07-18
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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