×

Activation device for passenger protection apparatus

  • US 20040002801A1
  • Filed: 05/23/2003
  • Published: 01/01/2004
  • Est. Priority Date: 06/27/2002
  • Status: Active Grant
First Claim
Patent Images

1. An activation device for a passenger protection apparatus which is made to activate said passenger protection apparatus in accordance with a behavior of a vehicle, comprising:

  • an angular velocity sensor for detecting a roll angular velocity of said vehicle;

    relative angle calculating means for calculating a roll relative angle of said vehicle on the basis of the roll angular velocity detected by said angular velocity sensor;

    roll judging means for making a judgment indicating the occurrence of a roll of said vehicle when the roll angular velocity detected by said angular velocity sensor and the vehicle roll relative angle calculated by said relative angle calculating means satisfy a predetermined threshold condition;

    drive control means for activating said passenger protection apparatus when said roll judging means makes the vehicle roll judgment;

    state detecting means having at least one of a window opening/closure sensor for detecting an open/closed state of a window of said vehicle and a buckle switch for detecting a wearing state of a seat belt; and

    threshold setting means for setting said predetermined threshold condition on the basis of a result of the detection by said state detecting means.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×