Table of Contents
What are parts of an airbag?
A typical air bag system consists of an air bag module (containing an inflator or gas generator and an air bag), crash sensors, a diagnostic monitoring unit, a steering wheel connecting coil, and an indicator lamp. These components are all interconnected by a wiring harness and powered by the vehicle’s battery.
What is the main airbag function?
The purpose of an airbag is to reduce injury by either cushioning the occupants contact with the interior of the vehicle or preventing contact completely. An airbag is a large nylon bag which inflates and deflates very rapidly in the event of a severe crash.
What are the three major chemicals that are present in an airbag prior to a crash?
Inside the airbag is a gas generator containing a mixture of NaN3, KNO3, and SiO2. When the car undergoes a head-on collision, a series of three chemical reactions occur inside the gas generator.
What is an airbag module?
An SRS airbag module, also known as the airbag electronic crash unit, controls the airbag’s deployment, stores crash data and exchanges information with the car’s engine. If your airbags have deployed in an accident before, or if your airbag light is on, you will need your SRS airbag control module reset.
What will trigger an airbag?
How airbags work. When a car hits something, it starts to decelerate (lose speed) very rapidly. An accelerometer (electronic chip that measures acceleration or force) detects the change of speed. If the deceleration is great enough, the accelerometer triggers the airbag circuit.
Which gas is used in car airbags?
nitrogen gas
The chemical at the heart of the air bag reaction is called sodium azide, or NaN3. CRASHES trip sensors in cars that send an electric signal to an ignitor. The heat generated causes sodium azide to decompose into sodium metal and nitrogen gas, which inflates the car’s air bags.
What gas fills the airbag?
The answer would be found in a fascinating chemical called sodium azide, NaN3. When this substance is ignited by a spark it releases nitrogen gas which can instantly inflate an airbag.
Do I need to replace airbag module?
If your airbags have deployed during an accident, your airbags will need to be replaced, and your airbag control module will need to be replaced or reprogrammed. It is recommended that a licensed technician replace damaged or deployed airbags to ensure proper care for safety on the road.
What are the 7 parts of an airbag system?
7 Parts of an Airbag System (SRS) 1 1) Airbag Inflator. The airbag inflator is part of the airbag module, which also includes the airbag as well. The job of the airbag inflator should be 2 2) Crash Sensors. 3 3) Diagnostic Monitoring Unit. 4 4) Indicator Lamp. 5 5) Connection Coil.
What is the name of the airbag module?
This system has acquired several names including SIR Supplemental Inflation Restraint, SRS Supplemental Restraint System and ACRS Air Cushion Restraint System. The airbag module contains the air bag and the inflator assembly incorporated into a module compact enough to fit into a steering wheel, passengers dash or the side of the front seat.
Where is the air bag in a car?
The airbag module contains the air bag and the inflator assembly incorporated into a module compact enough to fit into a steering wheel, passengers dash or the side of the front seat.
What is the name of the airbag restraint system?
This system has acquired several names, including SIR Supplemental Inflation Restraint, SRS Supplemental Restraint System, and ACRS Air Cushion Restraint System. The airbag module contains the airbag and the inflator assembly incorporated into a module compact enough to fit into a steering wheel, passenger dash,…