D180 R-DYNAMIC
- Year/Month: 2018/0
- Stock ID: T121263
- Transmission: Automatic
- CC: 2000
- Mileage: 129248
- Fuel Type: Diesel
- 71 Views
The work of pre-crash systems limit the negative consequences of accidents Or in other words, Pre-crash is the part of advanced Technologies that improve the effectiveness of car protection devices before an impact when you drive land rover range rover velar black for sale.
The Passive Factor
These are passive safety devices, they have the task of absorbing the kinetic energy possessed by the bodies in the car so that they do not collide or collide at a slower speed against the internal structures of the car or against the ground. They differ from the various active safety systems, which prevent impacts, such as the speed limiter, the device anti blow of sleep, the alert rear obstacles in reverse. So, before buy and pay the land rover range rover velar black price. A used car buyer should know about that to check its operation, properly. The pre-crash systems are composed of distance sensors, seat belts, pre-tensioner and airbags, and works in concert with ESP and assisted braking. If the sensors understand that an impact is imminent, they activate the pre-tensioner; the belt is stretched a little more than normal; Thus, the body is retained actively. It is also stated that pre-crash is the best prevention system.
Excessive Rotation
In addition, the possible explosion of the airbag softens the impact against the inside of the car. For example, the Mercedes Pre-Safe system (among the first on the market) at speeds monitors the dynamics of the car such as speed and rotation and the driver's inputs on the steering, accelerator, and brake determine if an emergency maneuver is in progress. If so, tighten the seat belts using reversible pre-tensioners, optimize the position of the occupants on the seats in combination with the electric seat adjustment and closes windows and roof, if there is excessive rotation or lateral sliding of the vehicle. Sometimes, active head restraints lean forward to avoid whiplashes from impact. The pre-tensioner of the pre-crash system is a device, activated by a spring or by a small explosive charge, which at the moment of impact tightens the belt towards the body; in this way, there is the maximum containment and the best dissipation by the belt of the energy of the body projected forward. Â
Various Ways
Typically, pre-crash systems predict an imminent impact and instantly prepare occupants and cars for a collision. The prediction can be based on several criteria i.e. a panic reaction of the driver obtained by monitoring the vehicle dynamics and the driver's actions, or the detection of obstacles on the car's trajectory by optical sensors. The system can intervene in various ways, but generally tightens the seat belts, adjusts the position of the seats to optimize the performance of the airbags and closes the windows to prevent the expulsion of passengers. In particular, the protection mechanisms of the Pre-Safe system are activated by emergency braking, in which the driver requires a greater deceleration than possible according to the conditions of the road surface and from critical steering movements in case of high speed. In any case, the action taken is reversible if the accident is avoided. Some pre-crash systems, on the other hand, intervene during the impact or immediately after to optimize the safety of the occupants.
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