Communications: electrical – Land vehicle alarms or indicators – External signal light system
Patent
1994-12-02
1996-10-15
Hofsass, Jeffery
Communications: electrical
Land vehicle alarms or indicators
External signal light system
340464, 340467, 340468, B60Q 144
Patent
active
055658415
ABSTRACT:
A system (10) for enhancing perception of the illumination of a plurality of brake lights (910, 912, 914) is provided. System (10) includes an input line (111) which is coupled to a vehicle's brake switch (908) and may have an input (142) coupled to a vehicle's turn signal switch assembly (918) for determining when the flashing of the brake lights should occur. The voltage provided from brake switch (908) is coupled through a normally closed relay contact (32) for coupling to the output (132) of system (10), such being coupled to the respective vehicle brake lights (910, 912, 914). When the brake switch is closed the brake lights are flashed at a predetermined flash rate, for a first predetermined time period, as established by a first timer circuit (58). Re-initiation of the flashing sequence is inhibited for a second time period established by second timer (56). Further, the flashing sequence may be terminated or inhibited responsive to the closure of a turn signal switch, such changing the logic state of an input (558) of the first timer (58) to thereby prevent intermittent energization of the relay (114) and the corresponding intermittent opening of the associated relay contacts (32).
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Hofsass Jeffery
Klein David I.
Rosenberg Morton J.
Trieu Van T.
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