Method and device for identifying a reversing operation in an electric actuating unit of a vehicle
US8754600B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2008 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jan 17, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/0851
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a method and a device for identifying a reversing operation in an electric actuating unit of a vehicle, once a trapped object is detected, the rotational direction of the electromotive drive is commutated. Sequential pulse interval counter values, derived from a sensor system or data derived from the values is or are written to a ring buffer store and compared with pre-defined reference data patterns. If a match is found, the counter reading of the position counter is corrected in accordance with the pre-defined reference data pattern. This ensures that the counter reading of the position counter is correct even after a reversing operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.