Apparatus and method for detecting the thickness of a brake lini

Details Apparatus and method for detecting the thickness of a brake lini Apparatus and method for detecting the thickness of a brake lini

1997-06-25

1999-11-02

Oberleitner, Robert J.

Brakes

With condition indicator

Wear

188 111E, F16D 6600

Patent

active

059752505

ABSTRACT:
An apparatus and a method detect the current thickness and thus the wear of a brake lining of a motor-vehicle brake system, which has a wheel-brake actuator at each wheel that actuates the wheel brake and is individually electrically controlled. The wheel-brake actuator contains a hydraulic piston which is moved by an electric motor and is provided with a sensor that detects the brake pressure or brake force as well as with a further sensor that detects the travel of the hydraulic piston. The thickness of the brake lining is determined from signals of the two sensors. To that end, a measurement is made of the travel performed by the hydraulic piston until a predetermined brake pressure is reached.

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patent: 5207299 (1993-05-01), Feldman
patent: 5403072 (1995-04-01), Kilian et al.
patent: 5825287 (1998-10-01), Zarybnicky, Sr. et al.

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