发明申请
- 专利标题: Shift through neutral control in an electrically variable transmission
- 专利标题(中): 在电动变速箱中通过空档控制
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申请号: US10779558申请日: 2004-02-14
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公开(公告)号: US20050182543A1公开(公告)日: 2005-08-18
- 发明人: Jy-Jen Sah , Todd Steinmetz
- 申请人: Jy-Jen Sah , Todd Steinmetz
- 主分类号: B60K6/365
- IPC分类号: B60K6/365 ; B60K6/445 ; B60W10/02 ; B60W10/08 ; B60W10/10 ; B60W20/00 ; B60W30/18 ; F16H3/72 ; F16H61/04 ; F16H61/32 ; F16H61/70 ; F16H63/50 ; G06F19/00
摘要:
A shift control for an electrically variable transmission shifts between modes through a neutral mode wherein the output is decoupled from the transmission. Normally, shifts between modes are accomplished synchronously through a duration of fixed-ratio operation. Extreme driving conditions may invoke shifts through neutral mode. Ratio violations characterized by one mode being active in a preferred input/output ratio range for another mode are handled by a shift through neutral. Similarly, rapid acceleration and deceleration conditions likely to result in undesirable engine speeds if synchronous shifting is employed are handled by a shift through neutral.