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公开(公告)号：US11370307B2
公开(公告)日：2022-06-28
申请号：US16229488
申请日：2018-12-21
Applicant: Sevcon Limited
Inventor： Richard Hellinga , Jason Wiseman , Howard Slater , Chris Pearce
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.
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公开(公告)号：US11374510B2
公开(公告)日：2022-06-28
申请号：US16305166
申请日：2017-05-23
Applicant: Sevcon Limited
Inventor： Richard Hellinga , Jason Wiseman , Howard Slater , Chris Pearce
Abstract: A method for controlling an electric motor is described herein. The method comprises setting a current limit, a speed limit and a torque limit. The method also comprises 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 comprises 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.
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公开(公告)号：US20200321898A1
公开(公告)日：2020-10-08
申请号：US16305166
申请日：2017-05-23
Applicant: Sevcon Limited
Inventor： Richard Hellinga
Abstract: A method for controlling an electric motor is described herein. The method comprises setting a current limit, a speed limit and a torque limit. The method also comprises 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 comprises 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.
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公开(公告)号：US20190111804A1
公开(公告)日：2019-04-18
申请号：US16229488
申请日：2018-12-21
Applicant: Sevcon Limited
Inventor： Richard Hellinga , Jason Wiseman , Howard Slater , Chris Pearce
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.
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