Motor-driven brake system, especially for rail vehicles

Details Motor-driven brake system, especially for rail vehicles Motor-driven brake system, especially for rail vehicles

1988-03-25

1989-02-21

Butler, Douglas C.

Brakes

Operators

Spring

188196R, 188 111, 192 90, 303 20, B60T 1304

Patent

active

048057401

ABSTRACT:
A brake system for a rail vehicle provides a strain-gauge sensor in the brake-force path to be connected in a Wheatstone bridge control together with a variable resistance for setting the desired brake force. The latter includes an infrared photo FET bridged by a parallel-fixed resistor and forming another branch of the bridge, the photodiode being controlled by the vehicle operator. The Wheatstone bridge controls a motor connected by a spindle drive to the actuator for the brake mechanism.

REFERENCES:
patent: 3981542 (1976-09-01), Abrams et al.
patent: 4023864 (1977-05-01), Lang et al.
patent: 4136304 (1979-01-01), Baechler et al.
patent: 4327414 (1982-04-01), Klein
patent: 4445596 (1984-05-01), Waters et al.
patent: 4557355 (1985-12-01), Wilke et al.
patent: 4609080 (1986-09-01), Sekella
patent: 4651852 (1987-03-01), Wickham et al.
patent: 4717865 (1988-01-01), Caputo

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