发明授权
- 专利标题: Automatic transmission having C.V.T. system for a vehicle
- 专利标题(中): 自动变速器具有C.V.T. 车辆系统
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申请号: US878394申请日: 1986-06-19
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公开(公告)号: US4706518A公开(公告)日: 1987-11-17
- 发明人: Shuzo Moroto , Shiro Sakakibara
- 申请人: Shuzo Moroto , Shiro Sakakibara
- 申请人地址: JPX Aichi
- 专利权人: Aisin Warner Kabushiki Kaisha
- 当前专利权人: Aisin Warner Kabushiki Kaisha
- 当前专利权人地址: JPX Aichi
- 主分类号: F16H3/66
- IPC分类号: F16H3/66 ; F16H37/02 ; F16H47/06 ; F16H37/08
摘要:
An automatic transmission for a front-engine front-drive vehicle comprising a fluid coupling, a belt type continuously-variable speed transmission (C.V.T.), a planetary gear mechanism, a forward-reverse changeover mechanism and a differential device. The planetary gear mechanism includes first and second planetary gear sets, a first intermediate shaft connected to a ring gear of the first planetary gear set and a sun gear of the second planetary gear set, a second intermediate shaft connected to a planetary carrier of the first planetary gear set and a ring gear of the second planetary gear set, and an input shaft connected to an output C.V.T. The forward-reverse changeover mechanism includes a brake disposed between the output of the C.V.T. and the planetary gear sets, and when the first intermediate shaft is braked, the ring gear of the first planetary gear set and the sun gear of the second planetary gear set are held in a stationary position by the brake, thereby a forward range gear train is formed, whereas when the second intermediate shaft is braked, the planetary carrier of the first planetary gear set and the ring gear of the second planetary gear set are held in a stationary position by the brake, thereby forming a reverse gear train.