Invention Grant
- Patent Title: Method and apparatus for controlling an electric motor
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Application No.: US16229488Application Date: 2018-12-21
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Publication No.: US11370307B2Publication Date: 2022-06-28
- Inventor: Richard Hellinga , Jason Wiseman , Howard Slater , Chris Pearce
- Applicant: Sevcon Limited
- Applicant Address: GB Gateshead
- Assignee: Sevcon Limited
- Current Assignee: Sevcon Limited
- Current Assignee Address: GB Gateshead
- Agency: Temmerman Law
- Agent Mathew J. Temmerman
- Priority: GB1611490 20160630
- Main IPC: B60L15/20
- IPC: B60L15/20 ; B60L3/06 ; H02P6/28

Abstract:
A method for controlling an electric motor is described herein. The method includes setting a current limit, a speed limit and a torque limit. The method also includes sensing a DC link current, comparing the sensed DC link current with the current limit and adjusting the torque limit based on the comparison with the current limit to provide an adjusted torque limit. The method also includes sensing the speed of the electric motor, comparing the speed with the speed limit and further adjusting the adjusted torque limit based on the comparison with the speed limit.
Public/Granted literature
- US20190111804A1 METHOD AND APPARATUS FOR CONTROLLING AN ELECTRIC MOTOR Public/Granted day:2019-04-18
Information query
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