The invention discloses a hybrid electric vehicle engine sliding friction starting control method and a device. The method comprises the following steps: a rotation speed of a gearbox input shaft is acquired, and if the rotation speed of the gearbox input shaft is larger than an idle speed of the engine, a clutch is controlled to enter a first rapid combination stage; after the first rapid combination stage of the clutch is finished, the clutch is controlled to enter a slow combination stage; whether a brake vacuum pump signal or an air conditioner enabling demand signal is received is judged; if yes, a torque instruction of the motor is generated according to demand torque of the motor, and when the real-time rotation speed of the motor is larger than the idle speed of the engine, the clutch is controlled to be separated quickly; and if not, the torque instruction of the motor is generated according to the demand torque of the motor, and when the real-time rotation speed of the engine is larger than the idle speed of the engine, the engine is controlled to fire and the clutch is controlled to enter a second quick combination stage until complete combination. Different modes are adopted in different working conditions to control the engine and the clutch, and the operation is simple and reliable.
Hybrid electric vehicle engine sliding friction starting control method and device
12.08.2015
Patent
Elektronische Ressource
Englisch
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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