Method and circuit for controlling charging in a dual battery electrical system
US6057666A · kind A · utility
74Cited by
10References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1998 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | Oct 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control circuit for controlling the recharging of two batteries in a dual battery vehicle electrical system includes a charging circuit (20) for stepping up the voltage of a reserve battery (RES.), so that it can be applied to a starting battery (HPB), an alternative circuit path (18, 19) to allow charging of both batteries by the alternator (A) when the vehicle engine is running, and a controller (30) for switching the connection of the batteries through the charging circuit (20) and the alternative circuit path (18, 19) under various combinations of conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.