发明名称 |
Planetary gear type multistage transmission for vehicle |
摘要 |
A small-sized vehicular planetary gear type step-variable transmission having seven or more forward drive gear positions with a wide range speed ratio and suitable for use on a vehicle. A transmission includes three planetary gear sets, four clutches, and two brakes to provide seven or more forward drive gear positions with a wide range speed ratio. A counter gear pair is constituted by an output gear disposed between a first transmission portion and a second transmission portion, and a driven gear which is mounted on a counter shaft rotatably about a second axis parallel to a first axis and which is held in meshing engagement with the output gear. A fourth clutch reduces an amount of increase of an axial length of the transmission, so that the transmission is small-sized and used on the vehicle.
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申请公布号 |
US2007184932(A1) |
申请公布日期 |
2007.08.09 |
申请号 |
US20050593492 |
申请日期 |
2005.03.23 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TABATA ATSUSHI;MIYAZAKI TERUFUMI |
分类号 |
B60K17/04;F16H3/62;B60K17/06;F16H3/66 |
主分类号 |
B60K17/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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