The car seat belt is an effective safety protection device, known as the life belt, which can prevent people from being injured in traffic accidents or reduce the severity of injuries in the event of an accident. Yuan Liang, engineer of the automotive electronic experimental teaching system, said that if drivers and passengers wear seat belts, their chance of surviving an accident is twice as high as if they do not wear seat belts, and it can also reduce the chance of injury. According to foreign statistics, the fatality rate in an accident for a driver not wearing a seat belt is approximately twice that of a driver wearing a seat belt. The fatality rate for a co-passenger in the front seat who is not wearing a seat belt is approximately twice that of a co-passenger in the rear seat who is not wearing a safety belt. The accident fatality rate is about twice that of wearing a seat belt. The mortality and serious injury rates without child safety seats are approximately twice as high as those with child safety seats. Car seat belts can not only effectively reduce casualties in the event of traffic accidents, but also ensure correct driving posture and reduce driver fatigue.
At present, it is popular to install airbag devices in cars, but this device also has disadvantages. First, excessive explosive force can easily cause injuries to the occupants (especially children). Second, the presence of airbags makes some occupants neglect to wear seat belts. Third, the vehicle is prone to losing control when the airbag explodes. In view of these disadvantages, an idea was proposed to combine the airbag and the seat belt into one and develop an airbag seat belt to eliminate the above disadvantages. This kind of airbag safety belt is an inflatable and inflatable safety belt on the main length of the safety belt (from the lower buckle to the length above the shoulder and near the fixed point of the body). Its working principle is the same as the current safety belt. Like airbags. When it breaks out, the width of the seat belt will increase from centimeters to centimeters to increase the contact surface with the human body and reduce injuries. This kind of airbag seat belt is not only relatively low-priced, but its installation position is not restricted and can also be used by rear seat passengers. Because this airbag seat belt has broad market prospects, some people believe that it will be the star of a new generation of automotive safety products. Here's how inflatable seat belts work
Seat belts deploy through cold inflation, using compressed air rather than an exothermic chemical reaction. This ensures that the difference between the temperature of the airbag deployment surface and the ambient temperature is no greater than Celsius (Fahrenheit), helping to eliminate the possibility of burns. This is especially important because, unlike most air bags, inflatable seat belts deploy close to the body.
The gas generator is installed in the car pillar or at a fixed point on the belt buckle. Inflation gas is delivered to the air bag through a tube. The inflatable section begins at a point slightly above the shoulders.
The undeployed airbag is folded and enclosed in a tear-away fabric cover that is slightly wider and thicker than a regular seat belt. When the airbag is inflated to about centimeters/inches in diameter, the cover falls off and the tubular airbag is revealed.
Inflatable harness technology is unique in many ways
A pillow-like cushion diagonally across the shoulders and upper chest can limit whiplash to the head, potentially reducing the risk of whiplash to the head. and neck injuries.
Inflation along the shoulder belt can provide a similar effect to a pretensioner, tightening the seat belt before the collision force is transmitted, putting the occupant in a more favorable position relative to other safety devices in the car.
The above is the relevant content about automobile airbag electronic control introduced by the editor of Chengdu Panfeng Technology, a developer and manufacturer of automotive electronic experimental teaching systems. I hope it can help everyone better understand the importance of airbag electronic control. And the practicality of mastering the knowledge related to automobile electronic control.
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