Invention Grant
- Patent Title: Method for torque control systems and methods based on rotor temperature
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Application No.: US15482935Application Date: 2017-04-10
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Publication No.: US10333448B2Publication Date: 2019-06-25
- Inventor: Anno Yoo , Yo Chan Son , Sangyeop Kwak
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: H02P21/14
- IPC: H02P21/14 ; H02P21/22 ; H02P21/24 ; H02P21/26 ; H02P27/08 ; H02P29/66 ; B60L11/18

Abstract:
An electric motor control system of a vehicle includes a current command module configured to, based on a motor torque request for an electric motor of the vehicle, generate a first d-axis current command for the electric motor and a first q-axis current command for the electric motor. An adjustment module is configured to, based on a speed of a rotor of the electric motor and the motor torque request, selectively determine at least one of a d-axis current adjustment and a q-axis current adjustment based on a temperature of the rotor of the electric motor. An adjusting module is configured to produce a second d-axis current command for the electric motor by adjusting the first d-axis current command based on the d-axis current adjustment and to produce a second q-axis current command for the electric motor by adjusting the first q-axis current command based on the q-axis current adjustment.
Public/Granted literature
- US20180294756A1 METHOD FOR TORQUE CONTROL SYSTEMS AND METHODS BASED ON ROTOR TEMPERATURE Public/Granted day:2018-10-11
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