Side Impact Preventive Occupant Protection System, Basic Function - GF91.40-P-1005A

MODEL ALL (CAR) with CODE 292 (PRE-SAFE® Impulse Side) 

Overview 

This document contains the following information:

• General 
• Function requirement 
• Preventive occupant protection system side impact 

General 

In the event of a side impact, only a limited crumple zone is available. To increase this, the preventive occupant protection system moves the driver or front passenger in the event of a side impact as far as possible out of the acute danger zone before the crash actually occurs.

Air chambers in the side bolsters of the seat backrest are inflated within fractions of a second. This gives the vehicle occupants a side pulse that moves the head and upper torso towards the vehicle center. This movement also reduces the speed differential between the colliding vehicle and the vehicle occupants. This enables the load applied to the chest by the side collision to be reduced.

At the same time, the reversible emergency tensioning retractor is activated for the vehicle occupant at the opposite side. If the reversible belt tensioner on the impact side was already activated, it is deactivated just before the collision.

Function requirement 

• Terminal 15 ON

Preventive occupant protection system side impact 

The traffic area next to the vehicle is monitored by radar sensors at front left and right of the vehicle. They detect objects that are on a collision course with the vehicle and that will probably cause a side impact.

If a collision is unavoidable, the air chambers in the side bolsters of the seat backrest are inflated within fractions of a second. To do this, pyrotechnical actuators located at each side of the seat are triggered. The vehicle occupant is then moved towards the vehicle center.

	Further basic functions
	Traffic area monitoring, basic function		GF54.71-P-1000A
	Control units
	Intelligent driving control unit, basic function	Model all (CAR) with code 292 (PRE-SAFE® Impulse Side) with code P20 (Driving Assistance package Plus)	GF30.30-P-9890A
	Reversible belt tensioner, basic function	Model all (CAR) with code 292 (PRE-SAFE® Impulse Side) with code 299 (PRE-SAFE® system)	GF91.40-P-9890A
	Supplemental restraint system control unit, basic function		GF91.60-P-9890A
	Components
	Intelligent driving radar sensor, basic function	Model all (CAR) with code 292 (PRE-SAFE® Impulse Side) with code P20 (Driving Assistance package Plus)	GF54.71-P-2005A