Allied Corporation

Lenora A Bisacquino

William A Singleton

Jeffrey J Krause

Larry E Dienes

Patrick J Vandemotter

Merlyn L Hutchins

Rudolph J Plasko

Gary E Budinger

Glenn S Bowker

Peter F Gibbons

An electronically controlled fluid pressure braking system for a heavy duty vehicle includes an operator controlled mechanism which generates independent brake pressure command signals, each of which are transmitted to separate auxiliary controllers. Each of the controllers transmits its command signal to the other auxiliary controllers and also to a master control unit. The master control unit sorts between the command signals and generates a preliminary brake pressure request signal which is transmitted back to each of the auxiliary controllers. Each of the auxiliary controllers then examines the brake pressure request signal received from the master controller and actuates the corresponding vehicle brakes if the pressure request signal is within normal limits. If the signal is not within normal limits, each of the auxiliary controllers is capable of generating a brake pressure request signal independently of the master control unit.

Electronically controlled fluid pressure braking system

An electronic treadle (10) for generating an electrical signal proportioned to the degree of angular movement of a pivotally mounted treadle plate (14) includes a base (32) having side portions (26,28) which cooperate with corresponding side members (22,24) extending from the treadle plate. A pair of stops (76,78) are carried on one (26) of the side portions which cooperate with a tab (80) movable with the treadle plate (14) to limit the angular movement thereof. Movement of the treadle plate (14) is transmitted to a rotary potentiometer (66) carried on side portion (28) by a shaft (62) and socket (57) connecting the shaft to side member (22).

Electronic treadle

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Middleburgh Hts., OH, United States of America

Lenora A Bisacquino