Pedestrian Protection, Basic Function - GF91.60-P-9906A
MODEL ALL (CAR) with CODE U60 (Active Bonnet (Pedestrian protection))
General
Reducing the severity of an accident is particularly important in the case of a collision with weaker road users e.g pedestrians because they do not have their own "crumple zone". The pedestrian protection includes the following measures, which can mitigate the consequences of an accident:
- Deformation spaces in the area of the front bumper and between the hood and the component parts that lie under it
- Flexible vehicle shell structures in the rear part of the hood
- Active hood with pyrotechnical raising devices in the area of the hinges
Function requirements
- Terminal 15 ON
- Vehicle speed 25 to 55 km/h
Pedestrian protection
The sensors in the front bumper detect a collision with pedestrians or other objects. The SRS evaluates the sensor signals and decides whether to trigger the pedestrian protection. When the pedestrian protection is triggered, the hood is raised in the area of the A-pillars by two raising devices. The space between the hood and the component parts that lie below is enlarged. The additional deformation space gained partly absorbs the impact energy in a collision and can therefore reduce the extent of injuries.
The pedestrian protection may be actuated by mistake in a collision with other objects (e.g poles, guide posts or thick branches).
Raising the engine hood has no further effects on the triggering behavior of the supplemental restraint system.
| Function schematics | |||
| Trigger pedestrian protection, function schematic | Model 167, 177 with code U60 (Active Bonnet (Pedestrian protection)) | PE91.60-P-2503-97A | |
| Control units | |||
| Supplemental restraint system control unit, basic function | GF91.60-P-9890A | ||
| Components | |||
| Pedestrian protection sensor, basic function | GF91.60-P-2016A | ||
| Hood lifter, basic function | GF91.60-P-2017A |