Patent ID: 11919494
Assignee: BREMBO S.P.A.
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 6:
7. A method for detecting malfunctions of an electro-actuated brake apparatus according to claim 1, wherein said step of performing the error validation check comprises the further steps of:
comparing the error signal with a first and a second error thresholds which are constant over time, wherein said second threshold is higher than the first threshold;
generating a second stepped count signal comprising:
a respective first stepped signal portion having an amplitude increasing over time from a first instant, in which an amplitude of the error signal switches from a value which is lower than the first error threshold to a value which is higher than said first error threshold,
a respective second stepped signal portion having an amplitude decreasing over time from a second instant, in which the amplitude of the error signal switches from a value which is higher than the first error threshold to a value which is lower than said first threshold,
a respective third stepped signal portion having an amplitude increasing over time from a third instant, in which the amplitude of the error signal, having a value which is higher than the first error threshold, switches from a value which is lower than the second error threshold to a value which is higher than said second threshold, wherein the amplitude of each step of said third stepped signal portion is higher than the amplitude of the steps of the first or second portions;
comparing the amplitude of the second stepped count signal with the amplitude of a constant maximum count signal having predetermined amplitude for calculating a stay time of the error beyond the aforesaid first and second thresholds;
generating the information on the operating state of the electro-actuated brake caliper when the amplitude of the second stepped count signal equals the amplitude of the constant maximum count signal.