Switching control system for automatically turning headlights of

Details Switching control system for automatically turning headlights of Switching control system for automatically turning headlights of

1999-02-22

2000-08-01

Wong, Don

Electric lamp and discharge devices: systems

Special application

Vehicle

307 108, B60Q 102

Patent

active

060971568

ABSTRACT:
The switching control system turns off the headlights of a vehicle when the vehicle'S brakes are applied and the vehicle is slowing down and possibly stopping at an intersection and turns the headlights on when the brakes are released. An auxiliary headlight switch turns the headlights on and off by processing signals from (1) the conductor which lights the brake lights and (2) an electrical signal from the speed indication system of the vehicle. The headlights are turned off when (1) the brakes are applied, sending power to the brake lights and (2) vehicle speed is below a designated level, as indicated by a unit which receives the speed signal and generates a signal when the speed is below the designated level. An indicator light is lit when the subject control switching is in effect. In an original equipment embodiment the control switching is powered by the fourth position on a 4 position headlight switch. In a retrofit embodiment, a separate switch enables the subject control switching and disables the conventional headlight circuit while the subject equipment is in use.

REFERENCES:
patent: 3914739 (1975-10-01), Caughlin et al.
patent: 4127793 (1978-11-01), Kojima
patent: 4684177 (1987-08-01), Ha
patent: 4940962 (1990-07-01), Sarokin
patent: 5519256 (1996-05-01), Goodridge
patent: 5767589 (1998-06-01), Lake et al.
patent: 5796094 (1998-08-01), Schofield et al.
patent: 5877680 (1999-03-01), Okuchi et al.

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