driver seat airbag 1
Introduction:
Driver airbag are mounted on the steering wheel, when the airbag early just universal, generally only driving members only equipped with airbags. With the importance of airbags has become increasingly prominent, most models are equipped with an airbag main co-pilot.
Principle:
by the airbag folded airbag, an inflator, an igniter, a solid nitrogen particles and a respective acceleration sensor, the controller and other components. Its work process is when a collision occurs, the controller according to the intensity of the acceleration signal from a sensor, identify and determine the collision, when the impact strength to meet the design conditions, the sensor touches quickly deploying the air bag igniter to detonate solid nitrogen particles, the rapid expansion is formed the airbags to cushion front passenger suffered shock intensity, mainly to protect the head from injury.
In fact airbags are explosive devices, but it will not easily burst open. Typically, when only the vehicle frontal collision of a certain angular range, and when above a certain speed of collision, the airbag will open, after the collision, side collision, rollover, vehicle speed or lower, the front, does not cause airbag deployment.
In general design, the designer that the airbag mounting position of the occupants distance should be more than 300 mm, at least 250 mm, and the security role is outside of this maximum distance. Therefore, the Department must wear seatbelts while driving, in order to ensure the front occupants of forward impact from the collision when the front is not too large, in order to ensure a safe distance between airbags and front staff. Otherwise, if a safe distance from the front occupants and airbags inadequate, not only does not reflect the protective effect of airbags, but it will also cause some risk. It should be said seat belts and airbags are two parts of the same system, if you do not wear seat belts, airbags will make the role of discount.
Type:
like a car graded as airbags also points advanced and the backward. At present, most vehicles equipped with airbags are an ordinary balloon that, once the collision, the airbag on all inflatable, large explosive. But so often for the front passenger, especially women, children or the little man could easily lead to serious injury. In order to reduce the damage, vehicle safety and technical experts to design ldquo; dual-stage rdquo; or ldquo; two rdquo; airbags.
This airbag may crash, such as the size of the vehicle speed, intensity of the collision and the like to control the opening speed of airbag and open time, and a two-stage airbags. When a collision occurs, the airbag opens to the first stage, only 70 of the airbag inflator of this percentage; if more strongly perceived impact strength, will be 0.1 seconds before all full, opening the second phase is an airbag
[ 123] thus protected occupants, in particular the occupants sitting close to the steering wheel or dashboard, the airbag inflator is subjected during the impact may be relatively small, particularly for children, and diminutive glasses occupants more protection. Dual-stage airbags is about two to three times the cost of ordinary airbags.
There is a more advanced intelligent airbags, in addition to the outbreak can be divided into two, it also started simultaneously with the tightening belts, together play a security role. This ldquo; intelligent rdquo; are inflated airbag system is adjusted according to the degree of impact force recorded by the sensor, and to coordinate the operation of the seat belt. Once a serious crash occurs, the air bag at the same time started, seat belt force limiters allows automatic tensioning seat belts, seat belts and then a little ldquo; release rdquo; some before the airbags give full play to gently protect the occupants personnel. When the impact is not severe (but still enough to cause damage), the airbag will be inflated in two stages; slow speed or when the system was not sensing seat belt, the airbag will be inflated in stages.