The invention provides a creeping interaction control method of a dual-clutch automatic transmission automobile. The method comprises the steps that gearbox information sent by a transmission control unit is acquired; first creeping rotating speed N is determined according to the running boundary conditions of an engine; second creeping rotating speed N sent by the transmission control unit is acquired if the whole automobile condition meets a creeping interaction control condition; the lager one of the first creeping rotating speed N and the second creeping rotating speed N is selected as final target creeping rotating speed; final creeping control torque is determined according to the final target creeping rotating speed and the actual rotating speed of the engine; and coordination control is carried out according to the final creeping control torque. According to the method, cooperation between the creeping control torque of an engine control unit and the torque loads of clutches in the automobile creeping process is optimized, the problem that in the automobile creeping starting process, the rotating speed of the engine is lowered excessively, and even flameout occurs is solved, and driving smoothness in the automobile creeping process is improved.
Creeping interaction control method and system of dual-clutch automatic transmission automobile
2015-09-23
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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