Arrangement for the automatic engagement of a hazard warning sys

Details Arrangement for the automatic engagement of a hazard warning sys Arrangement for the automatic engagement of a hazard warning sys

1987-05-15

1988-02-02

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 10LS, 307 9, 340 52R, 340 66, 180282, B60Q 144

Patent

active

047230789

ABSTRACT:
A circuit arrangement for the automatic engagement of a motor vehicle hazard warning system in case of impact accidents and emergency braking situations which includes an inertia switch with high response threshold and an acceleration sensor connected in parallel thereto with low response threshold whose output signals each serve for engaging the hazard warning system. The output of the acceleration sensor is connected to an evaluation circuit with an integrator and an threshold switch which prevents that also pulse-shaped output signals of the acceleration sensor lead already to turning on the hazard warning system.

REFERENCES:
patent: 3762495 (1973-10-01), Usui et al.
patent: 3846749 (1974-11-01), Curry
patent: 3909780 (1975-09-01), Huffman
patent: 4176340 (1979-11-01), Steinmeier
patent: 4384269 (1983-05-01), Carlson
patent: 4403210 (1983-09-01), Sullivan
patent: 4470036 (1984-09-01), Doerr et al.
patent: 4594574 (1986-06-01), Thurman
patent: 4641041 (1987-02-01), Mattes et al.

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