In 2009 the automaker Mercedes-Benz new car for experimental research in the field of vehicle safety. This unique car was called the Mercedes-Benz ESF. The new security features introduced by this project included the Pre-Safe Structure.
Pre-Safe Structure is a new element of passive safety , the development of the Daimler worked two years with the company Autoliv. At first glance, it might be an element of passive safety , which belongs to the field of science fiction, but the opposite is true.
Imagine an inflatable bed made of metallic fabric that is stored on state nenafouknutém place reinforcements in the body, such as doors. Unlike conventional braces molded reinforcement Pre-Safe Structure occupies much less space. At the direction of the sensor, this reinforcement inflates in a split second pressure of 1-2 MPa, so that keeps stokilovou load. When using reinforcements such as door-half saves designers kilogram as compared with steel reinforcements with identical characteristics.
profile of the active elements of the Pre-Safe Structure
One of the problems that engineers still worried, it is irreversible once used active reinforcements. Reinforcement can not be inflated or even beat the straightening bench. Activated braces must be replaced. The price of gas generators, which must be small, fast and light, is still high. For these reasons, it is necessary to use high-precision trigger sensors that system Pre-Safe Structure actually activated only when needed.
Text: John Sajdl
Photo: www.daimler.com
Keywords: passive safety, the safety element, Pre-Safe Structure, ESF, Mercedes-Benz, Daimler, inflatable brace doors
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