The invention discloses an engine starting method, a vehicle electrical system and a storage medium. The method comprises the steps that in the vehicle parking state, if the starter control loop state reported by an EMS and reported by an EBS obtained through a VCU and the battery function state SOF, reported by the EBS, of a storage battery meet preset conditions, a starting relay is controlled to be kept closed through the VCU, and a starting oil injection instruction is sent to the EMS; the starter is controlled to start through the EMS, and the engine is controlled to inject oil through the EMS if the rotating speed of the engine reaches a first preset rotating speed, wherein the starter is connected with the storage battery in parallel; if the rotating speed of the engine reaches the second preset rotating speed within the preset time, the state of the engine is reported to the VCU through the EMS to be operation; and if the VCU judges that the starter is started successfully according to the state and the rotating speed of the engine, the clutch between the engine and the driving motor is controlled to be combined. Under the condition that the number of low-voltage load storage batteries and related control components are not increased, an engine is started, and the comfort and safety of a vehicle are improved.
本申请公开了一种发动机起机方法、车辆电气系统及储存介质。其中方法包括:在车辆停车状态下,若通过VCU获取到的EMS上报的起动机控制回路状态和EBS上报的蓄电池的电池功能状态SOF符合预设条件,通过VCU控制起机继电器保持闭合,并向EMS发送起机喷油指令;通过EMS控制起动机起机,若发动机转速达到第一预设转速,通过EMS控制发动机喷油;其中,起动机与蓄电池并联;若预设时间内发动机转速达到第二预设转速,通过EMS向VCU上报发动机的状态为运行;若通过VCU根据发动机的状态和转速,判断起动机起机成功,控制发动机和驱动电机间的离合器结合。本申请可以在不增加低压负载蓄电池数量和相关控制部件的情况下,起机发动机,提高车辆的舒适性和安全性。
Engine starting method, vehicle electrical system and storage medium
一种发动机起机方法、车辆电气系统及储存介质
2021-04-09
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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
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