Failure detection circuit for a vehicle anti-skid braking system

Details Failure detection circuit for a vehicle anti-skid braking system Failure detection circuit for a vehicle anti-skid braking system

1976-10-07

1978-08-15

Blix, Trygve M.

Fluid-pressure and analogous brake systems

Pipeless valves

303 96, B60T 800

Patent

active

041068211

ABSTRACT:
An anti-skid braking system including a plurality of independent solenoid energizing circuits which are controlled in accordance with the outputs of sensors on separate wheels of a vehicle, has a failure detection circuit comprising a timer triggered into operation each time any one of the solenoids is energized, and reset when a back e.m.f. generated by the deactivation of any solenoid is detected. If the timer is not reset within a fixed period the system is disabled and a warning lamp is energized. The system also includes a circuit utilizing the back e.m.f. signals for testing the system each time it is switched on.

REFERENCES:
patent: 3680923 (1972-08-01), Peterson
patent: 3841712 (1974-10-01), Syria
patent: 3861755 (1975-01-01), Taylor
patent: 3920284 (1975-11-01), Lane
patent: 3944288 (1976-03-01), Bertolasi
patent: 3995912 (1976-12-01), McNinch

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