What kind of device is the airbag, how to use it better

The airbag is arranged in the car in front (or drive), lateral (inside the front and rear roof) and three directions. The container equipped with airbag system is printed with the word "Supplemental Inflatable Restraint System" (SRS), which is translated into Chinese "auxiliary inflatable restraint system". The airbag is composed of three parts; the first is the balloon itself, which is composed of thin nylon fabric, folded in the steering wheel disc or instrument; and then inform the airbag sensor, the sensor can detect the collision force equivalent to 16-24 km / h speed hit the wall; finally the inflatable airbag system, in fact inflated by the solid rocket booster and similar systems, sodium azide (NaN3) and potassium nitrate (KNO3) react rapidly, generating large amounts of hot gas, this gas will be inflated, the airbag will rush out of the steering wheel or the dashboard in the expansion. The airbag is an auxiliary protection device of the airbag system. It is made of nylon with rubber lining and filled with harmless nitrogen when working. It takes about 0.03 seconds to inflate the airbag in the event of a collision. Very fast inflating speed to ensure that the passenger's body is tied to the seat belt.

The airbag can be in place in time when the airbag is still moving forward. When the air bag is encountered in the head, the air bag begins to exhaust through the air hole on the surface of the air bag. The discharge of the gas has a certain rate to ensure that the body parts slow down slowly. The airbag can inflate up to 320 kilometers per hour, and if the person's riding position is not correct in the collision, it will cause serious harm to the person.

Airbag wire harness

1. Main components

The main products include the steering wheel assembly, the driver's air bag assembly, the wiring harness assembly, the spiral cable assembly, and the controller (ECU) assembly. When the vehicle key switch to file 2, start the airbag system, ECU self-test according to the preset program, if the indicator light 4 seconds, and then go out, said, through self checking system is normal, then ECU will enter the monitoring state; if the indicator appears intermittent flicker or constant light, not through the system, the self not normal. During normal driving (including in all kinds of road and interference) ECU sends instruction, the airbag is not serious; the car prior to the crash, ECU issued timely ignition motivation, stimulate the airbag module airbag deployment, to absorb collision energy of the driver, reducing the occupant may suffer damage, which play a protective role.

Airbag wire harness

Two. Use the environment and working conditions A. to use the ambient temperature (-35 to +85). B. operating voltage (12 + 3) V. C. when the system fails, the system will stop working. D. self inspection time (about 4 seconds), the system does not analyze the car crash information and send out ignition instructions; after the completion of self inspection, the system begins to work normally. In order to realize the ideal safety protection effect of the E. car safety air bag system, the driver must be required to match the safety belt correctly and the sitting posture is correct. Three, main performance and technical characteristics. A., when the impact strength of a car's forward crashes is less than that of a vehicle with a collision speed of 13 + 1 km/ and a rigid fixed wall perpendicular to the direction of the vehicle, the air bag system does not work. B., when the impact strength of a car's forward crashes is greater than that of a vehicle at a speed of (23 + 1) km/h and a rigid fixed wall perpendicular to the direction of the vehicle, the airbag system should act in a timely and reliable manner.

. what happens when the front of the car to crash in the car collision strength to (13 + 1) km/h and (23 + 1) between the collision strength of km/h velocity and a direction perpendicular to the vehicle rigid wall collision, fuzzy control system in the state, the possible role of the airbag system, may not effects are normal. D. when the car collision occurred the following form when the airbag for the driver effective protection, and comply with relevant regulations and requirements: 1) there is equivalent to the car at a speed of 500 -2Km/h and a direction perpendicular to the vehicle rigid wall collision occurred; 2) equivalent to the vehicle with 500-2Km/h speed and a perpendicular to the vehicle the direction of 30 degrees (or less than 30 degrees) rigid wall collision occurred; 3) is equivalent to the car at a speed of 500 -2Km/h and a direction perpendicular to the vehicle with 250mm rigid pole barrier collision; 4) occurred at 560 -2Km/ h equivalent to the vehicle speed and a direction perpendicular to the vehicle 40% offset barrier crash. Four, structure and working principle

Airbag wire harness