Process and apparatus for monitoring a motor vehicle brake for o

Details Process and apparatus for monitoring a motor vehicle brake for o Process and apparatus for monitoring a motor vehicle brake for o

1993-05-05

1996-01-02

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

188112R, 303 3, 303 15, B60T 1722

Patent

active

054802156

ABSTRACT:
In a vehicle train comprising a motor vehicle and a trailer, a process for monitoring a motor vehicle trailer brake for overload comprises producing an energy call-up signal during a braking action, supplying energy to the motor vehicle brake in the motor vehicle, the amount of energy being supplied to the motor vehicle being determined, at least in part, by the value of the energy call-up signal, producing a trailer energy signal, the value of the trailer energy signal being determined, at least in part, by the value of the energy call-up signal, and supplying trailer energy to a trailer brake in the trailer, the amount of trailer energy supplied to the trailer brake being determined, at least in part, by the value of the trailer energy signal. The process further comprises monitoring the coupling force appearing at a coupling between the motor vehicle and the trailer, and adjusting the coupling force based on the trailer energy signal. The process further comprises detecting that overload of the motor vehicle brake has occurred when the value of the trailer energy signal decreases in a more than transitory manner at a given call-up signal. In a preferred embodiment, overload of the motor vehicle brake is detected only when the decrease in the trailer energy signal exceeds a predetermined value.

REFERENCES:
patent: 4060284 (1977-11-01), Steiner
patent: 4763958 (1988-08-01), Ohrgard
patent: 5132664 (1992-07-01), Feldmann et al.
patent: 5286094 (1994-02-01), Milner

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