Process and apparatus for monitoring a trialer brake for overloa

Details Process and apparatus for monitoring a trialer brake for overloa Process and apparatus for monitoring a trialer brake for overloa

1993-05-05

1996-06-04

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

188122R, B60T 1722

Patent

active

055226493

ABSTRACT:
In a vehicle train comprising a motor vehicle and a trailer, a process for monitoring a trailer brake for overload comprises producing an energy call-up signal during a braking action, supplying energy to a 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 trailer brake has occurred when the value of the trailer energy signal rises in a more than transitory manner at a given call-up signal. In a preferred embodiment, overload of the trailer brake is detected only when the rise 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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