Patent ID: 6398318
Filing Date: 2002-06-04
Classification: B60T

Abstract:
A method for monitoring a braking system disposed in a vehicle, the braking system including at least one brake circuit, the at least one brake circuit having an output side and including valve configurations on the output side, the vehicle including wheel brake cylinders allocated to the at least one brake circuit and connected to the valve configurations, the braking system further including at least one pump for delivering a braking medium to at least two cylinders of the wheel brake cylinders, the method comprising the steps of:(a) during predetermined vehicle states, actuating the at least one pump, and driving the valve configurations using predetermined driving signals; (b) determining a wheel-performance variable for at least one wheel of the vehicle during step (a), the wheel-performance variable indicating a wheel performance of the at least one wheel; and (c) checking, as a function of the wheel-performance variable, whether a first fault of the braking system has occurred and whether a second fault of the braking system has occurred, wherein, during a check for the first fault, the wheel-performance variable is a wheel-slippage variable which indicates a wheel slippage of the at least one wheel, and wherein, during a check for the second fault, the wheel-performance variable is a wheel-velocity variable which indicates one of a wheel revolutions-per-minute (r.p.m.) and a velocity of the at least one wheel.