The invention discloses a hybrid power system starting control method, relates to the technical field of engines, and solves the technical problem of poor smoothness during engine starting, and the method comprises the following steps: starting a first motor, and controlling the rotating speed at a first rotating speed; a quadruple valve gas circuit is controlled according to the set frequency and the set duty ratio, the position of a main clutch is made to be Kispoint, and the first motor drags the engine till the rotating speed of the engine exceeds the second rotating speed; when the engine starts to inject oil, the quadruple valve gas circuit is controlled to enable the main clutch to be completely separated, and the ECU controller sends an engine oil injection instruction to the engine; when the engine outputs a small torque, a quadruple valve gas circuit is controlled to enable the position of a main clutch to be Prekisspoint, and an ECU controller sends an engine output small torque instruction to the engine; controlling a quadruple valve gas circuit to enable the position of a main clutch to be Kispoint when the rotating speed difference between the engine and the first motor is within a set interval; and the quadruple valve gas circuit is controlled to enable the main clutch to be completely closed, and at the moment, the hybrid power system enters the CVT mode from the EV mode.
本发明公开了一种混合动力系统起动控制方法,涉及发动机技术领域,解决发动机起动时平顺性差的技术问题,方法包括:起动第一电机,转速控制在第一转速;以设定频率、设定占空比控制四联阀气路,使主离合器的位置为Kisspoint,第一电机拖动发动机直到发动机的转速超过第二转速;控制四联阀气路使主离合器完全分离,ECU控制器发送发动机喷油指令给发动机,当发动机开始喷油时;控制四联阀气路使主离合器的位置为Prekisspoint,ECU控制器发送发动机输出小扭矩指令给发动机,当发动机输出小扭矩时;控制四联阀气路使主离合器的位置为Kisspoint,当发动机与第一电机的转速差在设定区间内时;控制四联阀气路使主离合器完全闭合,此时混合动力系统由EV模式进入CVT模式。
Starting control method for hybrid power system
一种混合动力系统起动控制方法
2022-07-08
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 |
European Patent Office | 2015
|European Patent Office | 2024
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