发明申请
- 专利标题: SPEED CONTROL OF AN ELECTRICALLY-ACTUATED FLUID PUMP
- 专利标题(中): 电动液压泵的速度控制
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申请号: US12944800申请日: 2010-11-12
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公开(公告)号: US20120121438A1公开(公告)日: 2012-05-17
- 发明人: Jy-Jen F. Sah , Ali K. Naqvi , Vincent Rawls , Nitinkumar R. Patel
- 申请人: Jy-Jen F. Sah , Ali K. Naqvi , Vincent Rawls , Nitinkumar R. Patel
- 申请人地址: US MI Detroit
- 专利权人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人地址: US MI Detroit
- 主分类号: G05D7/06
- IPC分类号: G05D7/06 ; F04B49/00
摘要:
A fluid system includes a fluidic device, an electrically-actuated fluid pump having a pump motor, and a control system. The control system controls a speed of the pump using a commanded torque value, and calculates a feedforward torque term as a function of a set of operating values, including a desired fluid line pressure. The control system determines the speed control torque term using pump speed error, and adds the feedforward torque term to the speed control torque term to calculate the commanded torque value. The speed control torque term may be determined using an integral term of a proportional integral derivative (PID) portion of the control system. A method for controlling pump speed includes calculating the feedforward torque term, determining the speed control torque term using a pump speed error, and adding the feedforward torque term to the speed control torque term to calculate the commanded torque value.
公开/授权文献
- US08414270B2 Speed control of an electrically-actuated fluid pump 公开/授权日:2013-04-09
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