Automotive electrical system and method for coupling power to such systems
US5794055A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1995 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Jul 31, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automotive electrical system and method for coupling power to such a system in which current cumulatively drawn by the various modules of the system during its inactive state is minimized. In one aspect of the invention, the electrical system (10) comprises at least one remote module (14a-n) coupled to a power bus (21) and a signal bus (16), at least one of the remote modules (14a-n) is coupled to at least one wake-up input switch (28A-I); a central module (12) coupled to the remote module (14a-n) by the signal bus (16), the central module (12) coupling electrical power from a power source (20) to the power bus (21) in response to a detection of an activation of any of the wake-up input switches (28A-I). In another aspect of the invention, a method for awakening an automotive electrical system (10) from an inactive state, the electrical system (10) having a central module (12) for coupling power from a power source (20) to a power bus (21), at least one remote module (14a-n) coupled to the power bus (21), and the remote module (14a-n) coupled to at least one wake-up input switch (28A-I), the method comprising the steps of: generating a current transient upon activation of the wa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.