发明授权
- 专利标题: Shift control apparatus for automatic transmission
- 专利标题(中): 用于自动变速器的换档控制装置
-
申请号: US09466872申请日: 1999-12-20
-
公开(公告)号: US06270444B1公开(公告)日: 2001-08-07
- 发明人: Hiroshi Tsutsui , Kouichi Kojima , Yutaka Teraoka
- 申请人: Hiroshi Tsutsui , Kouichi Kojima , Yutaka Teraoka
- 优先权: JP11-311721 19991101
- 主分类号: F16H6108
- IPC分类号: F16H6108
摘要:
Quick shifting is achieved while preventing a shift shock when shifting is caused by grip change of four engagement elements. The automatic transmission requires activation of the four engagement elements when shifting from a first shifting position (sixth speed) to a second shifting position (third speed) is performed. This shifting control apparatus includes shift control means for starting disengagement of a second engagement element after starting disengagement of a first engagement element; completing engagement of a fourth engagement element after completing engagement of a third engagement element; and starting disengagement of the second engagement element before completing engagement of the third engagement element.