- 专利标题: Continuously variable transmission and method for controlling continuously variable transmission
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申请号: US16957742申请日: 2017-12-28
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公开(公告)号: US11460106B2公开(公告)日: 2022-10-04
- 发明人: Haruki Morita , Ryohey Toyoya , Akira Takano
- 申请人: Nissan Motor Co., Ltd.
- 申请人地址: JP Yokohama
- 专利权人: Nissan Motor Co., Ltd.
- 当前专利权人: Nissan Motor Co., Ltd.
- 当前专利权人地址: JP Yokohama
- 代理机构: Global IP Counselors, LLP
- 国际申请: PCT/JP2017/047337 WO 20171228
- 国际公布: WO2019/130573 WO 20190704
- 主分类号: F16H61/662
- IPC分类号: F16H61/662 ; F16H9/18 ; F16H61/30 ; F16H61/02
摘要:
A continuously variable transmission includes an electric oil pump disposed in an oil passage between primary and secondary pulley oil chambers. An oil passage switching valve is disposed between the oil pump and the primary pulley oil chamber. The oil passage switching valve switches between a first switching position in which the primary pulley oil chamber and the oil pump are connected, and a second switching position in which the primary pulley oil chamber and the oil pump are disconnected and in which the oil pump and an oil passage connecting an oil reservoir and the oil passage switching valve are connected. In addition, the continuously variable transmission includes a discharge mechanism having a leak valve disposed in the oil passage between the electric oil pump and the oil passage switching valve for discharging oil that is discharged from the oil pump towards the primary pulley oil chamber.
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