How does China Hinge pin work?

In China 25 percent of traffic fatalities are pedestrians. In Europe the figure is 14 percent and in the USA it’s 12 percent. A far larger number of struck pedestrians are injured. The most serious head injuries involving pedestrians and cars China Hinge pin are caused by the hard structure under the hood, the windshield's lower edge and the A-pillars.

How does it work?

Seven sensors embedded in the front of the car transmit signals to a control unit. When the car comes into contact with an object, the signals change. The control unit evaluates the signals and if it registers what it interprets as a human leg the pedestrian airbag is deployed.

Each of the hood hinges are equipped with pyrotechnical release mechanisms which, when the system is activated, pull out a pin and release the rear of the hood panel. At the same time, the airbag is activated and starts filling with gas. During the inflation sequence the airbag raises the hood; the hood lifts by four inches and stays in that raised position.

The added gap between the bonnet and the hard components in the engine compartment gives space for the hood to deform, creating a dampening effect when it is hit by a pedestrian.