- 专利标题: VARIABLE TRANSMISSION WITH A VARIATOR UNIT FOR AN ELECTRIC VEHICLE AND CONTROL METHOD FOR IT
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申请号: EP20020639.9申请日: 2020-12-22
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公开(公告)号: EP4019808A1公开(公告)日: 2022-06-29
- 发明人: VAN DEN BOER, Matijs
- 申请人: Robert Bosch GmbH
- 申请人地址: DE 70442 Stuttgart Postfach 30 02 20
- 代理机构: Plevier, Gabriël Anton Johan Maria
- 主分类号: F16H9/04
- IPC分类号: F16H9/04 ; F16H37/02 ; F16H37/04 ; B60K6/543 ; F16H48/20
摘要:
The invention relates to a variable transmission (3) for an electric vehicle and comprising a variator unit (40) for providing a continuously variable speed ratio between an input shaft (44) and an output shaft (45) thereof. According to the invention, the variable transmission (3) further comprises two planetary gear sets (50) respectively provided on a respective axial side of the output shaft (45) and each comprising three coaxially rotatable members (51, 52, 53) including a sun gear (51), a ring gear (52) and a planet carrier (53) rotatably carrying planet gears (54), whereof first members (51, 52, 53) rotate as one with the output shaft (45), whereof second members (51, 52, 53) respectively rotate as one with a respective one of the two driven wheels (2) and whereof third members (51, 52, 53) of each of the planetary gear sets (50) are connectable to a stationary part (39) of the variable transmission (3) via a respective clutch (55).
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