Patent ID: 8620548

Claim:
A brake-switch failure diagnosis method for detecting an operation condition of a brake pedal, the method comprising: periodically repeatedly performing inconsistency detection between output signals from two identical brake switches provided such that the operation condition of the brake pedal may be detected, and when inconsistency is detected at a relevant detection point, performing a new inconsistency detection between output signals from the two brake switches after a first certain time has passed from the relevant detection point, and when inconsistency is detected again, performing, with a counter at a relevant count point, a count of a predetermined incremental value, determining that the two brake switches are failed when a count value reaches a predetermined value, and resetting the two brake switches when it is determined the two brake switches are failed, and wherein, when the counter performs the count, inconsistency detection for output signals from the two brake switches is prohibited for a second certain time from the relevant count point.