Method and system for controlling a motor vehicle alternator, and motor vehicle alternator including such a system
US9225277B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2012 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Dec 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P9/305
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for controlling a motor vehicle alternator, in which an error value, resulting from the comparison between the voltage produced by the alternator and a set value, is processed in a filtering means by applying a transfer function, which determines a gain to be associated with the error value on the basis of the rotational frequency of the alternator, in order to control the adjustment of the field current allowed by the alternator. The transfer function of the filtering means is modified on the basis of the rotational speed of the alternator by attenuating the gain over a given frequency range when the rotational speed decreases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.