Invention Grant
- Patent Title: Systems and methods for calculating motor position, inertia and rest position in sensorless brushed DC motor control systems
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Application No.: US15474580Application Date: 2017-03-30
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Publication No.: US10536100B2Publication Date: 2020-01-14
- Inventor: Patrick Jordan , Dusko Petrovski
- Applicant: GENTHERM INCORPORATED
- Applicant Address: US MI Northville
- Assignee: GENTHERM INCORPORATED
- Current Assignee: GENTHERM INCORPORATED
- Current Assignee Address: US MI Northville
- Main IPC: G05B19/4061
- IPC: G05B19/4061 ; H01H33/36 ; G01P3/489 ; H02P6/24 ; B60N2/02 ; B60N2/12 ; B60N2/16 ; H02P6/18 ; H02P7/00

Abstract:
A system according to the present disclosure includes a motor driver module and a motor position determination module. The motor driver module is configured to measure current supplied to a motor. The motor position determination module is configured to determine a first position of the motor at a first time when power supply to the motor is initially discontinued based on ripples in the current supplied to the motor during a first period before the first time. The motor position determination module is configured to determine a second position of the motor at a second time when the motor stops rotating after power supply to the motor is discontinued based on the first position of the motor and a rotational speed of the motor at the first time.
Public/Granted literature
Information query
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