Communications: electrical – Land vehicle alarms or indicators – External signal light system
Reexamination Certificate
2011-06-07
2011-06-07
Bugg, George A (Department: 2612)
Communications: electrical
Land vehicle alarms or indicators
External signal light system
C362S227000
Reexamination Certificate
active
07956732
ABSTRACT:
A vehicle flasher hazard function is implemented on an electrical controller having control over vehicle exterior lights. The flasher hazard function features an optimized duty cycle and operational frequency, consistent with legal requirements for the flasher rate. The point in time that individual bulbs are turned on is staggered in time to avoid all bulbs being simultaneously activated. This distributes the current surges associated with bulb activation being distributed in time. When a vehicle battery can no longer sustain the legally mandated flasher rate an optional path for flasher operation at a reduced rate is provided.
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Bell Joseph A.
Gumbel Matthew J.
Askew Gerald W.
Bach Mark C.
Bugg George A
Calfa Jeffrey P.
International Truck Intellectual Property Company, LLC
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