Voltage sensing for automotive voltage regulator
US6534959B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Sep 14, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/92
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage regulator for control of a vehicle generator. The voltage regulator is selectably responsive to a voltage representing the generator output voltage at the alternator output terminal, or to an external voltage sensed at a load or source point on the vehicle. The voltage regulator determines the relationship between these two sensed voltages and in response thereto chooses one of the sensed voltages for use in controlling the generator output by controlling the field excitation current input thereto. Certain conditions also cause the voltage regulator to latch in a mode where it is controlled only by one of the alternator output terminal voltage or the external voltage. Manual resetting may be required to discontinue the latched operational mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.