发明申请
- 专利标题: Shift control device of vehicular automatic transmission
- 专利标题(中): 车用自动变速器变速控制装置
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申请号: US11602219申请日: 2006-11-21
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公开(公告)号: US20070117677A1公开(公告)日: 2007-05-24
- 发明人: Atsushi Ayabe , Toshio Sugimura , Takahiko Tsutsumi , Hisashi Ishihara , Kazuhiro Iketomi , Yosuke Takaie
- 申请人: Atsushi Ayabe , Toshio Sugimura , Takahiko Tsutsumi , Hisashi Ishihara , Kazuhiro Iketomi , Yosuke Takaie
- 专利权人: Toyota Jidosha Kabushiki Kaisha
- 当前专利权人: Toyota Jidosha Kabushiki Kaisha
- 优先权: JP2005-337451 20051122
- 主分类号: B60W10/04
- IPC分类号: B60W10/04
摘要:
A shift control device of a vehicular automatic transmission, if during a first shift in a power-off state, a second shift judgment for a second shift that is a power-on downshift is made, performs a second shift control of lowering an input shaft rotation speed to a synchronous rotation speed of a post-second shift gear step through an engagement control of the friction engagement devices, and when the second shift is performed, performs a control of reducing a throttle valve opening degree of the engine to a predetermined degree that causes the engine to output a torque that is able to bring the input shaft rotation speed to a rotation speed that is higher than the synchronous rotation speed of the post-second shift gear step. The control device also executes a retardation control of retarding an ignition timing of the engine when the input shaft rotation speed is dropped through the second shift control.
公开/授权文献
- US07740559B2 Shift control device of vehicular automatic transmission 公开/授权日:2010-06-22