Patent ID: 8244429
Filing Date: 2012-08-14
Classification: B60T

Abstract:
1. A brake-switch failure diagnosis method for detecting an operation condition of a brake pedal, characterized in that: when two brake switches, being provided such that an operation condition of a brake pedal may be detected, are detected to be not ON together and not OFF together, first and second determination counters perform count of respective predetermined incremental values, and on the other hand, when the two brake switches are detected to be ON together, a count value of the first determination counter is set to zero, and when the two brake switches are detected to be OFF together, a count value of the second determination counter is set to zero, those operation being periodically repeated, and when the count value of the first determination counter or the count value of the second determination counter is equal to or larger than each predetermined value being beforehand determined, a brake switch is determined to be failed.