×

Vehicle steering column control system

  • US 6,012,736 A
  • Filed: 12/01/1998
  • Issued: 01/11/2000
  • Est. Priority Date: 04/26/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for monitoring through a vehicle steering column an operability of an air bag firing circuit comprising an RC network including a firing squib as an element of the network comprising steps ofimpressing a test pulse on the firing circuit;

  • generating a ring signal in the network in response to the test pulse wherein the ring signal is representative of a state of the air bag firing circuit; and

    ,monitoring the ring signal by comparing the ring signal with predetermined standards for identifying whether the state is indicative that the air bag firing circuit is operable.

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