The present invention relates to a shift control method and system for a DCT vehicle, which prevent shift performance from deteriorating by correcting clutch torque on a release side in a situation where a decrease in engine torque output occurs. The present invention provides a shift control method and system for a DCT vehicle, in which it is determined whether output reduction conditions for reducing the output torque of a vehicle are satisfied based on output values of factors reflecting the driving situation of the vehicle during power-on downshift shifting; and when the output reduction conditions are satisfied, a clutch on a release side is controlled to be released by reducing the clutch torque on the release side compared to set torque.
본 발명은 엔진토크의 출력저하가 발생하는 상황에서 해방측 클러치토크를 보정하여 변속성능이 악화되는 것을 방지하는 DCT차량용 변속 제어방법 및 시스템에 관한 것으로, 본 발명에서는, 파워온 다운시프트 변속시, 차량의 주행상황을 반영하는 팩터의 출력값을 기반으로 차량의 출력토크를 감소시키는 출력감소조건을 만족하는지 판단하고; 출력감소조건 만족시, 해방측 클러치토크를 설정토크보다 감소시켜 해방측 클러치를 해제 제어하는 것을 특징으로 하는 DCT차량용 변속 제어방법 및 시스템이 소개된다.
DCT System and control method for shifting vehicle with dual clutch transmission
DCT차량용 변속 제어방법 및 시스템
2023-08-04
Patent
Electronic Resource
Korean
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