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Automotive Technology

7th Edition
ERJAVEC + 1 other
Publisher: Cengage,
ISBN: 9781337794213

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FindFindarrow_forward

Automotive Technology

7th Edition
ERJAVEC + 1 other
Publisher: Cengage,
ISBN: 9781337794213
Chapter 48, Problem 5SA
Textbook Problem
467 views

Describe the three types of safing sensors.

To determine

Different types of safing sensors.

Explanation of Solution

The air bag electrical system includes impact sensor and electronically control module. The air bags activates only when the impact sensor and an inside sensor are closed. These impact-safing sensors are mainly divided into three types, they are:

  1. Roller type:
  2. The roller type sensor is shown in the figure. It shows the position of sensor when it is at rest and when is in motion. These sensors have a coiled type roller fixed from one end and the coiled spring is held by a roller weight. The other spring contact is placed at the other end of the ramp. When the system activates, during an impact, the weight is removed, and the roller moves up the ramp and strikes the other contact thus completing the circuit and the air bag opens.

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