Method of controlling the regulation of a motor vehicle alternator, and corresponding devices
US8841889B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Sep 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method comprises the transmission to a regulator (8) of the alternator of width-modulated pulses (PWM1) exhibiting a duty ratio representative of a setpoint value (Vref) continuously included between a first reference duty ratio (DC1) and a second reference duty ratio (DC2), and the detection of these pulses by the regulator so as to generate the setpoint value. The method also comprises the transmission to the regulator of other width-modulated pulses (PWM2) exhibiting a specific duty ratio (EXOF_R) which is less than the first reference duty ratio (DC1) and ties between a low duty ratio (DCL) and a high duty ratio (DCH), and the detection of these other pulses by the regulator, in a first step, and the generation of an opening signal (EXOF) for a circuit for excitation of the alternator, in a second step, following this latter detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.