×

Failure detecting system and method for automatic transmission

  • US 5,573,475 A
  • Filed: 06/16/1995
  • Issued: 11/12/1996
  • Est. Priority Date: 07/29/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. A failure detecting system for an automatic transmission of a vehicle having a vehicle speed sensor mounted on said vehicle for sensing a vehicle speed and for generating a vehicle speed signal indicative thereof, comprising:

  • a brake switch mounted on said vehicle for detecting whether a brake system is operated or not and for generating a brake signal indicative thereof; and

    transmission control prohibiting means, responsive to said vehicle speed signal and said brake signal, for prohibiting control of said automatic transmission based on said brake signal when a first predetermined number of times is counted while said vehicle speed decreases from a predetermined speed to a zero speed without detecting operation of said brake system, thereby indicating a failure in said brake system.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×