| 摘要 |
PURPOSE:To provide a driver prootecting device which improves precision of the starting timing of the safety means such as air bag and reduces the necessity of the tuning for each type of vehicle, by separately using the collision judgement based on the acceleration speed of a vehicle and the collision judgement based on the position measurement of the upper body of a driver, according to the acceleration speed in the collision of the vehicle. CONSTITUTION:A driver protecting device is equipped with a first means 14 equipped with an acceleration speed sensor 5 for detecting the accelerating speed of a vehicle and the first judging means 6 which judges collision on the basis of the signal 13 supplied from the acceleration speed sensor 15 and outputs a starting signal S1, and the second means 18 equipped with at least one sensor 7 for detecting the position or displacement of the upper body of a driver and/or the speed and the second judging means 10 which judges collision on the basis of the signal 15 supplied from the sensor 7 and outputs a starting signal S2. Accordingly, a selecting means 12 which outputs the starting signal supplied from the first means when the collision speed of a vehicle is over a prescribed value and outputs the starting signal supplied from the second means when the collision speed is below the prescribed value is provided. |
