Motor system

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.

Description

[0001] Cross references to related applications [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 317,048 filed on April 1, 2016. The entire disclosure of the aforementioned application is incorporated herein by reference. Technical field [0003] The present disclosure relates to a motor control system, and more particularly to a system and method for calculating motor position, inertia, and stationary position in a sensorless brushed DC motor control system. Background technique [0004] The background description provided here is for the purpose of generally presenting the context of the present disclosure. The scope of the work of the currently named inventor described in this background section and the aspects that may not conform to the description of the prior art at the time of submission are neither expressly nor implicitly recognized as prior art of the disclosure . [0005] Brushed DC motors have been used to adjust the position of seats...

AI Technical Summary

Problems solved by technology

Therefore, the hall effect sensor and wiring may represent a relatively expensive component of the seat assembly

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