The invention provides a hybrid electric vehicle, a dual-motor controller and a control method thereof.The control method comprises the steps that firstly, whether a first drive circuit connected with the electric power connecting end of a generator operates in a voltage closed-loop control mode or not is judged, and when the first drive circuit operates in the voltage closed-loop control mode, the first drive circuit is switched on; if the high-voltage power battery fails, the contactor connected with the direct-current bus is disconnected; at the moment, according to the whole vehicle limp driving mode of the hybrid electric vehicle, the operation mode or the power limit value of a second driving circuit is determined with the purpose of stabilizing the voltage of the direct-current bus as the target; namely, through cooperative control of the first driving circuit and the second driving circuit, the stability of the voltage on the direct-current bus is maintained, and the problem that the voltage of the direct-current bus is easy to fluctuate when the voltage of the direct-current bus is controlled by only depending on the first driving circuit is avoided.
本申请提供一种混合动力汽车、双电机控制器及其控制方法,该控制方法,首先判断发电机的电力连接端所接的第一驱动电路是否运行于电压闭环控制模式,当该第一驱动电路运行于电压闭环控制模式时,说明高压动力电池故障、其连接直流母线的接触器断开;此时,根据混合动力汽车的整车跛行驱动方式,以稳定直流母线的电压为目标,确定第二驱动电路的运行模式或者功率限值;也即,通过对于第一驱动电路和第二驱动电路的协同控制,共同维持直流母线上电压的稳定,避免单纯依靠第一驱动电路来控制直流母线电压时容易出现的直流母线电压波动问题。
Hybrid electric vehicle, dual-motor controller and control method of dual-motor controller
混合动力汽车、双电机控制器及其控制方法
2023-08-22
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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