Overvoltage protection circuit arrangement for vehicular antiski

Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor

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307 10R, H02H 320

Patent

active

047033886

ABSTRACT:
A circuit arrangement for protecting the antilocking electrical system from overvoltages developed in the vehicle's electrical systems. Such overvoltages can be caused by a load dump and can lead to destruction of the vehicle's electrical system. To sense an overvoltage condition, a test circuit is provided which is connected to the vehicle's electrical system. The voltage test circuit provides an output signal when the voltage of the vehicle's electrical system exceeds a first threshold value. This output signal is used to switch the final stage of the antilocking electrical system. The overvoltage is thereby conducted directly to one or more low-resistance solenoid valves which limit the voltage in such a way that it no longer presents any danger to the vehicle's electrical system.

REFERENCES:
patent: 3852613 (1974-12-01), Wienecke
patent: 4161759 (1979-07-01), Stein
patent: 4503477 (1985-03-01), Henriksen et al.
patent: 4573099 (1986-02-01), Ganesan et al.
patent: 4589049 (1986-05-01), Kramrein
patent: 4590533 (1986-05-01), Murata

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