In the case of collision, the airbag system is very effective to protect the safety of drivers and passengers.
At present, the airbag system is generally steering wheel single air bag system, or double air bag system. No matter the speed is high or low, the air bag and the seat belt pretensioner act at the same time in the collision of the vehicle equipped with double air bag and seat belt pretensioner system, which results in the waste of the air bag in the low-speed collision and increases the maintenance cost a lot.
The two-action dual airbag system can automatically choose to use only the seat belt pretener action or the seat belt pretener and dual airbag operation at the same time according to the speed and acceleration of the car in the event of collision. In this way, in a low-speed crash, the system uses only seat belts to protect the driver and passenger, without wasting air bags. If the speed is greater than 30km/h in the crash, the seat belt and air bag action at the same time, in order to protect the safety of the driver and passenger. The main air bag rotates with the steering wheel, it is necessary to coil in the steering wheel, with the rotation of the steering wheel, so in the connection of wiring harness, to leave a margin, otherwise not enough will be torn off, to the maximum in the middle position, to ensure that the steering wheel is not pulled off when turning to the limit.
