Method and device for processing a motor signal
US9270216B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2013 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | May 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/4802
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and a device process a motor signal of a direct current motor, in particular of an adjustment drive of a motor vehicle. The armature current and the motor voltage of the direct current motor are detected and used for determining the counter induction voltage of the direct current motor, by which a number of control signals having different ripple frequencies for controllable frequency filters are generated. The current ripples that are generated in a frequency dependent manner by the frequency filters, to which a filter input signal derived from the armature current and the motor voltage is applied, are synchronized with each other in the course of the ripple count.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.