The invention relates to the technical field of automobile control, in particular to a range extender shutdown control method and system, a vehicle control unit and a vehicle, and the method comprises the following steps: sending a shutdown instruction to an engine controller of a range extender under the condition that a shutdown demand of the range extender is obtained, and according to a preset signal period, starting the engine controller of the range extender; a rotating speed instruction is sent to a generator controller of the range extender regularly, the rotating speed instruction is used for indicating the generator controller to reduce the rotating speed of an engine of the range extender to a target rotating speed value, and the continuous target rotating speed values are in a gradient decreasing trend; timing is started while a rotating speed instruction is sent to the generator controller for the first time; and under the condition that the timing duration is larger than or equal to the obtained rotating speed request duration, a torque instruction is sent to a generator controller, so that stop control over the range extender is completed. According to the method, the conditions that gas in the engine cylinder is not exhausted completely and abnormal sound is generated in the shutdown control process can be avoided.
本申请涉及汽车控制技术领域,尤其涉及一种増程器停机控制方法、系统、整车控制器及车辆,方法包括:在获取到増程器停机需求的情况下,向増程器的发动机控制器发送停机指令,并且,按照预设的信号周期,定期向增程器的发电机控制器发送转速指令,转速指令用于指示发电机控制器将増程器的发动机的转速降低至目标转速值,连续的目标转速值之间呈梯度下降的趋势;在首次向发电机控制器发送转速指令的同时,开始计时;在计时时长大于或等于获取到的转速请求时长的情况下,向发电机控制器发送扭矩指令,以完成増程器停机控制。本方法能够避免出现停机控制过程中发动机缸内气体未完成排除以及产生异响的情况。
Range extender shutdown control method and system, vehicle control unit and vehicle
増程器停机控制方法、系统、整车控制器及车辆
2024-06-14
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
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