Trailer brake control device of tractor-trailer combination vehi

Details Trailer brake control device of tractor-trailer combination vehi Trailer brake control device of tractor-trailer combination vehi

1998-01-23

2000-03-28

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

188112R, B60T 1300

Patent

active

060421967

ABSTRACT:
In a tractor-trailer combination vehicle, a trailer brake control device has a detector of hitch angle expanded by the longitudinal axis of the trailer relative to the longitudinal axis of the tractor around a vertical pivot axis of a joint between the tractor and the trailer, and a controller for selectively actuating brakes of the trailer, wherein the controller controls the actuation of the trailer brakes based upon at least two operational conditions such that the controller starts the actuation of the trailer brakes when the hitch angle increases beyond a threshold value determined therefor and ends the actuation of the trailer brakes when a duration determined for the actuation of the trailer brakes lapses.

REFERENCES:
patent: 3948544 (1976-04-01), Presley et al.
patent: 5001639 (1991-03-01), Breen
patent: 5033798 (1991-07-01), Breen
patent: 5102202 (1992-04-01), Breen
patent: 5108158 (1992-04-01), Breen

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