A vehicle's input switches relating to ignition (20), lights (41) and moisture (44) or rain provide responsive inputs that feed through a digital logic circuit (12) to outputs of an electronic switching device (14) for automatically activating the vehicle's lights (21. 22) and wipers (23). An alarm (24) may be activated if certain input switches are turned on when the ignition is off. The digi-tal logic circuit (12) may be discrete, a programmable read only memory (PROM) or a programmable logic array (PLA). The elec-tronic switching device (14) may constitute a driver circuit (13) and an integrated circuit which includes both a relay switching cir-cuit (K1, K2) and a switched circuit (S1-S4), for exemple a metal-oxide-semiconductor (MOS) driver and a power metal-ox-ide-semiconductor field-effect-transistor (MOSFET) integrated circuit.

Title
Dispositif de commande de phares et dessuie-glaces
Vehicle light, windshield wiper control system
Publication Number
2115169
Application Date
August 3, 1992
Publication Date
February 18, 1993
Inventor
Stumpf Donald M
Benedict Charles E
Agent
FETHERSTONHAUGH & CO
Assignee
Benedict Charles E
Assignee
Benedict Engineering Co
IPC
G05B 09/02
B60S 01/08
B60Q 01/14
B60R 16/02
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