Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
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
Nakamura Katsushi
Sakai Masaru
Graham Matthew C.
Sy Mariano
Toyota Jidosha & Kabushiki Kaisha
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