SHIFT CONTROL APPARATUS FOR CONTINUOUSLY-VARIABLE TRANSMISSION

The present invention provides a shift control apparatus for a continuously variable transmission, which prevents a belt from slipping to a state where an engine is stopped. The shift control apparatus for a continuously variable transmission comprises a hydraulic pump driven by a driving force sour...

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Bibliographic Details
Main Authors WAKAYAMA HIDESHI, YAMADA NAOHIRO, AOYAMA NORITAKA, WAKU KOUSUKE, TATEWAKI KEICHI
Format Patent
LanguageEnglish
Korean
Published 28.07.2015
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Summary:The present invention provides a shift control apparatus for a continuously variable transmission, which prevents a belt from slipping to a state where an engine is stopped. The shift control apparatus for a continuously variable transmission comprises a hydraulic pump driven by a driving force source to supply oil pressure to a hydraulic circuit; a hydraulic auxiliary part supplying oil pressure of an undercurrent to the hydraulic circuit; and a hydraulic control circuit having a control valve supplying oil pressure of at least one of the hydraulic pump and the hydraulic auxiliary part to a pulley; a control part, which, when a vehicle is driven, performs a cost stop control to stop the driving force source and, when an increase of a torque input into a continuously variable transmission is detected or predicted during the control of cost stop, controls the control valve such that the oil pressure of the hydraulic auxiliary part can be supplied to the pulley. 본 발명은, 엔진 정지 상태로 벨트의 슬립을 방지하는 무단 변속기의 제어 장치를 제공하는 것이다. 구동력원에 의해 구동되어 유압 회로에 유압을 공급하는 유압 펌프와, 저류한 유압을 유압 회로에 공급 가능한 유압 보조부와, 유압 펌프 및 유압 보조부의 적어도 한쪽의 유압을 풀리에 공급하는 제어 밸브를 구비하는 유압 제어 회로와, 주행중에 구동력원을 정지하는 코스트 스톱 제어를 행하고, 코스트 스톱 제어 중에, 무단 변속기에 입력되는 토크의 증가를 검지 또는 예측한 경우에는, 제어 밸브를, 유압 보조부의 유압이 풀리에 공급되도록 제어하는 제어부를 구비한다.
Bibliography:Application Number: KR20150096993