Communications: electrical – Selective – Having indication or alarm
Patent
1980-06-02
1982-11-02
Caldwell, Sr., John W.
Communications: electrical
Selective
Having indication or alarm
340 66, 340 69, 340 52H, 340 71, 340669, 73495, 73510, 73652, 200 6145R, 364426, 324162, 324166, B60Q 126, G01P 1500
Patent
active
043575943
ABSTRACT:
A vehicular hazard warning system has an indicator on the vehicle that is energizable to yield a warning signal. The onset of a hazardous condition is detected and, as a result, a control signal is developed which has a variable parameter the amount of which is proportional to the degree of hazard represented by the condition. In response to that condition, the indicator is energized in a manner which quantitatively has a magnitude that is proportional to the amount of hazard. The system primarily responds to abrupt deceleration. It also preferably is responsive to such other inputs as brake pressure, wheel speed change, inertial forces and operator-controlled pedal movement.
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Ehrlich Paul
Wilson Michael
Caldwell Sr. John W.
Crosland Donnie L.
Drake Hugh H.
Traffic Safety Devices Company
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