The invention discloses a shutdown control method for a hybrid power heavy truck, and relates to the technical field of new energy heavy trucks. The control method comprises the following steps: S1, obtaining the rotating speed information of an engine after a vehicle is shut down; S2, whether the rotating speed of the engine is larger than a second constant value V2 or not is judged, if so, enabling an ISG motor to enter an energy recovery mode, and if not, ending the process; and S3, when the ISG motor enters the energy recovery mode, judging whether the rotating speed of the ISG motor is smaller than a third constant value V3 or not, if so, enabling the ISG motor to exit from the energy recovery mode, and if not, skipping to execute step S2. The control method can solve the problems that in the prior art, in the process from engine flameout to engine flywheel complete stop of the hybrid power heavy truck, the gearbox is prone to being long in duration time and large in noise.
本发明公开了一种混合动力重卡停机控制方法,涉及新能源重卡技术领域,该控制方法包括以下步骤:S1:获取车辆停机后发动机的转速信息;S2:判断发动机的转速是否大于第二定值V2,若是,则使ISG电机进入能量回收模式,若否,结束;S3:当ISG电机进入能量回收模式时,判断ISG电机的转速是否小于第三定值V3,若是,使ISG电机退出能量回收模式,若否,转跳执行S2步骤。该控制方法能够解决现有技术中混合动力重卡的从发动机熄火一直到发动机飞轮完全停止过程中时,变速箱易出现持续时间长及噪声大的问题。
Shutdown control method for hybrid power heavy truck
一种混合动力重卡停机控制方法
2020-07-03
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 |