What is the deployment speed of an airbag?
1 Answers
Here is the relevant introduction about the deployment speed of an airbag: 1. The airbag deployment requires a relative speed greater than 50km/h, and the acceleration in the opposite direction at the moment of collision must exceed 40g. In other words, the relative speed must be >50km/h, and the impact force must meet the conditions for this speed to occur. Different automakers have varying settings for the airbag deployment conditions. The airbag will only deploy if the impact point is near the sensors, typically within a 60° angle in front of the vehicle. Side airbag/curtain sensors are located near the doors. The airbag will deploy only when colliding with rigid walls or obstacles. Hitting the sensor location with hard objects like a hammer will not trigger the airbag, as the sensor activation is primarily caused by speed. 2. The controller relies on three acceleration sensors (not speed sensors) to send the deployment command to the airbag. Therefore, even at high speeds, the airbag will not deploy if the acceleration value (corresponding to the impact force) during the collision does not exceed the set threshold. Similarly, even at lower speeds, the controller will issue the airbag deployment command if the acceleration value during the collision exceeds the set threshold.
