Electric lamp and discharge devices: systems – Special application – Vehicle
Patent
1986-04-23
1990-02-06
Griffin, Robert L.
Electric lamp and discharge devices: systems
Special application
Vehicle
315 82, 307 108, B60Q 102
Patent
active
048990833
ABSTRACT:
An automatic lighting system comprises a bypass circuit bypassing a manual lighting switch. During operation in an automatic lighting mode, headlamps and a clearance lamp of the automobile automatically turn on when the engine operation becomes stable upon completion of start-up operation. The stability in operation of the bypass circuit in the automatic lighting mode is increased by the provision of a delay circuit via which a voltage appearing at an alternator driven by the engine is applied to a base of a transistor that is used to close and open the bypass circuit. Closing a cranking motor switch to activate a cranking motor causes the bypass circuit to be inoperable so that the headlamps and clearance lamp will not turn on during engine cranking.
REFERENCES:
patent: 3500119 (1970-03-01), Price
patent: 3706006 (1972-12-01), Miller
patent: 3774071 (1973-11-01), Goodrich
patent: 3832597 (1974-08-01), Mitchell
patent: 3882452 (1975-05-01), Stevens
patent: 4438384 (1984-03-01), Akita et al.
patent: 4667129 (1987-05-01), Papillon
The Service Manual entitled "Nissan Laurel Service Manual" published by Nissan Motor Company, Nov. 1984, "Headlamp-Daytime Light System" (For Europe Model), page #L-65.
Kataoka Sachiro
Okai Saburo
Yamamoto Yukio
Griffin Robert L.
Nisson Motor Co. Ltd.
Salindong T.
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