发明授权
- 专利标题: Method and control apparatus for operating a multiple-speed vehicle transmission
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申请号: US17864816申请日: 2022-07-14
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公开(公告)号: US11767911B2公开(公告)日: 2023-09-26
- 发明人: Fabian Ley , Jürgen Blaser , Sascha Fiesel , Wolfgang Rapp
- 申请人: ZF Friedrichshafen AG
- 申请人地址: DE Friedrichshafen
- 专利权人: ZF Friedrichshafen AG
- 当前专利权人: ZF Friedrichshafen AG
- 当前专利权人地址: DE Friedrichshafen
- 代理机构: FINCH & MALONEY, PLLC
- 优先权: DE 2021207810.9 2021.07.21
- 主分类号: F16H61/682
- IPC分类号: F16H61/682 ; F16H59/72 ; F16H59/54 ; F16H59/40 ; F16H61/30 ; F16H59/48 ; F16H59/44
摘要:
Disclosed is a method for operating a multi-speed vehicle transmission having a plurality of shift elements (A, B, C, D, E) for engaging the gears of the vehicle transmission. The method includes decoupling between an input (AN) and an output (AB) of the vehicle transmission in a neutral gear, and coupling the input (AN) and the output (AB) of the vehicle transmission in a drive gear for propelling the vehicle by closing at least one shift element (B). At least one transmission state is determined when the neutral gear is engaged, where a shift element (D) for a reverse gear of the vehicle transmission is closed at least partially if the transmission is in a state with increased drag losses when the neutral gear is engaged.
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