Abstract: The automotive hazard flashers described make more usable the distinctive, high-visibility flash hazard signal of U.S. Pat. No. 6,515,584 B2. That signal is here made available, at the driver's selection, as an auxiliary alternative hazard signal to a standard hazard signal. Both signals are displayed in a vehicle's turn signal lamps. The auxiliary high-visibility hazard signal may also be displayed in supplementary lamps. Automatic cancellation of hazard signals by activating a turn signal is made available. The use of one distinctive, high-visibility hazard signal, such as that of U.S. Pat. No. 6,515,584 B2, is made available as a single, consistent warning signal for different types of hazards, including manually signaled hazard warnings, vehicle-in-reverse warning and rapid deceleration warning.

Abstract: A flashing light sequence which is readily distinguished by drivers as the signal for a hazard alert as contrasted with turn signal flashes. An electronic hazard alert flasher unit is described which generates a hazard warning signal which is distinctively different in flash rate and pattern from standard turn signals and other on-off warning lights. One version of the hazard alert flasher unit is intended to replace the standard element presently used in highway vehicles to generate the turn signal and hazard flash pulse. A second version of the hazard alert flasher can be used to control the flash rate of free-standing emergency electric lanterns, illuminated emergency warning triangles, and LED substitutes for pyrotechnic flares. The proposed hazard alert flash pattern consists of three or more short flashes followed by a longer pause.

Abstract: A flashing light sequence which is readily distinguished by drivers as the signal for a hazard alert as contrasted with turn signal flashes. An electronic hazard alert flasher unit is described which generates a hazard warning signal which is distinctively different in flash rate and pattern from standard turn signals and other on-off warning lights. One version of the hazard alert flasher unit is intended to replace the standard element presently used in highway vehicles to generate the turn signal and hazard flash pulse. A second version of the hazard alert flasher can be used to control the flash rate of free-standing emergency electric lanterns, illuminated emergency warning triangles, and LED substitutes for pyrotechnic flares. The proposed hazard alert flash pattern consists of three or more short flashes followed by a longer pause.