Invention Grant
- Patent Title: Method of controlling an auxiliary pump for a transmission
- Patent Title (中): 控制传动用辅助泵的方法
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Application No.: US12474703Application Date: 2009-05-29
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Publication No.: US08146690B2Publication Date: 2012-04-03
- Inventor: Goro Tamai , Jy-Jen F. Sah , Eric S. Tryon , Scott A Miller , Steven J. Shepherd
- Applicant: Goro Tamai , Jy-Jen F. Sah , Eric S. Tryon , Scott A Miller , Steven J. Shepherd
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn Law Group, PLLC
- Main IPC: B60W10/30
- IPC: B60W10/30
Abstract:
A method of operating an auxiliary pump for an electrically variable transmission includes purging the auxiliary pump when an auxiliary pump temperature is below a minimum operating temperature and above a minimum purge temperature. The auxiliary pump fluid temperature and the minimum purge temperature are determined based upon the transmission fluid temperature and the ambient temperature.
Public/Granted literature
- US20100303636A1 METHOD OF CONTROLLING AN AUXILIARY PUMP FOR A TRANSMISSION Public/Granted day:2010-12-02
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