Method and system for controlling the illumination of a vehicular lamp and for monitoring the state of a switch connected thereto
US5606308A · kind A · utility
17Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1995 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Aug 7, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R16/0315
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and system for controlling the illumination of a vehicular lamp and for monitoring the state of a switch electrically connected thereto. A feedback signal corresponding to a state of the switch is generated by a feedback circuit. A control signal is generated by a controller based on the feedback signal. A lamp drive signal is generated by a lamp driver based on the control signal for illuminating the lamp. A single multiplexed connector provides the lamp drive signal to the lamp during a drive operating mode and the feedback signal from the switch to the controller during a feedback operating mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.