Detection device and detection method for detecting number of revolutions of sensorless EPB motor
US10797625B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2017 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Jul 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/09
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device and method for detecting the number of revolutions of a sensorless electric park brake (EPB) motor. The device for detecting the number of revolutions of a sensorless motor includes: an actuator driving motor used to set and release a parking brake of an EPB system; an electronic control module for controlling the motor, a vehicle battery for supplying power to the motor and the electronic control module; and a main processing unit for receiving an output signal of the electronic control module and estimating the number of revolutions of the motor, wherein the electronic control module further includes a ripple measuring unit for receiving an output signal of the motor and measuring a ripple of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.