Fluid-pressure and analogous brake systems – Pipeless valves
Patent
1984-05-14
1992-07-14
Oberley, Alvin E.
Fluid-pressure and analogous brake systems
Pipeless valves
340636, B60T 1722
Patent
active
051297132
ABSTRACT:
A fail-safe system for an anti-skid brake control system includes a switch disposed within a power supply circuit of the anti-skid brake control system for connecting and disconnecting a vehicle battery to the anti-skid control system. A battery voltage monitor produces a disabling signal when the battery voltage drops below a predetermined battery voltage threshold. A gating circuit is disposed between the battery voltage monitor and the anti-skid control system to selectably transmit the disabling signal to the latter. The gating circuit receives as input the output of the anti-skid brake control system, and thus responds to operation of the anti-skid control system by blocking transmission of the disabling signal. Thus, the gating circuit allows the disabling signal to be transmitted to the anti-skid control system only while the anti-skid control system is inoperative. The switch disconnects the battery from the anti-skid control system in response to the disabling signal.
REFERENCES:
patent: 3861760 (1975-01-01), Hamelin
patent: 3874743 (1975-04-01), Fleischer et al.
patent: 3948568 (1976-04-01), Leiber
patent: 4009914 (1977-03-01), Sato et al.
patent: 4013324 (1977-03-01), Quon
patent: 4049325 (1977-09-01), Reinecke
patent: 4061402 (1977-12-01), Peterson et al.
patent: 4421361 (1983-12-01), Arikawa et al.
patent: 4425622 (1984-01-01), Arikawa
Nissan Motor Company Limited
Oberley Alvin E.
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