Invention Grant
US08483898B2 Method and apparatus for controlling speed of an electric pump in a vehicle
有权
用于控制车辆中的电动泵的速度的方法和装置
- Patent Title: Method and apparatus for controlling speed of an electric pump in a vehicle
- Patent Title (中): 用于控制车辆中的电动泵的速度的方法和装置
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Application No.: US12949911Application Date: 2010-11-19
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Publication No.: US08483898B2Publication Date: 2013-07-09
- Inventor: Ali K. Naqvi , Jy-Jen F. Sah
- Applicant: Ali K. Naqvi , Jy-Jen F. Sah
- 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: F16D43/28
- IPC: F16D43/28

Abstract:
A vehicle includes a clutch set, a tank with fluid, an auxiliary battery, an electric fuel pump, and a controller. The electric fluid pump delivers some of the fluid from the tank to a designated oncoming clutch of the clutch set. The controller calculates a predicted flow value for the oncoming clutch during the shift event, and selectively controls the speed of the pump using the predicted flow value during the shift event. The controller controls the pump using an actual flow value when the vehicle is not executing a shift event, i.e., when holding torque. The speed of the electric fluid pump is increased to a first calculated speed determined using the predicted flow value when the shift event is initiated and before filling of the oncoming clutch commences, and is reduced to a second calculated speed determined using the actual flow value when the shift event is complete.
Public/Granted literature
- US20120035794A1 METHOD AND APPARATUS FOR CONTROLLING SPEED OF AN ELECTRIC PUMP IN A VEHICLE Public/Granted day:2012-02-09
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