Deploy Supplemental Restraint System, Basic Function - GF91.60-P-1003A
MODEL ALL (CAR)
Overview
This document contains the following information:
- General
- Function requirement
- Triggering the SRS
General
The SRS assesses various input factors and triggers the corresponding restraint equipment in the event of an accident.
Function requirement
- Circuit 15R ON
Triggering the SRS
The triggering of the restraint equipment takes place depending on the severity of the impact, the occupation of the front passenger seat and the status of the seat belts (fastened or unfastened).
The following conditions are taken into account in the case of frontal impact:
- Driver and front passenger seat position (Canada version or USA version):
The SRS decides the trigger time of the driver and front passenger airbag depending on the position of the front seats.
The position of the front seats is recorded by a sensor at the guide rail of each front seat.
- Front passenger seat occupancy status:
- Front passenger seat not occupied: No restraint equipment is triggered on the front passenger side.
- Child seat detected on the front passenger seat and seat belt not fastened: No restraint equipment is triggered on the front passenger side.
- Child seat detected on the front passenger seat and seat belt fastened: The front passenger airbag is not triggered.
- Person detected on the front passenger seat and seat belt not fastened: Only the front passenger airbag is triggered.
- Driver seat belt buckle status:
No restraint equipment related to the seat belt is triggered if the seat belt is not fastened. This may be:
- Emergency tensioning retractor
- Canada version or USA version:
- Emergency tensioning retractor
- Belt anchor fitting tensioner
- Belt force limiter
- Japan version:
- Emergency tensioning retractor
- Belt force limiter
- Status of seat belt buckles in rear:
No restraint equipment is triggered if the seat belt is not fastened.
The following conditions are taken into account in the event of a side impact:
- Front passenger seat occupancy status:
- Front passenger seat not occupied: No restraint equipment is triggered on the front passenger side.
- Child seat or person detected on the front passenger seat and seat belt not fastened: The seat belt tensioner on the front passenger side is not triggered.
- Driver seat belt buckle status:
If the seat belt is not fastened, emergency tensioning retractor is not triggered at the driver side.
- Status of seat belt buckles in rear:
If the seat belt is not fastened, the respective emergency tensioning retractor in the rear is not triggered.
The following conditions are taken into account in the event of a rear impact:
- Driver/front passenger seat belt buckle status:
No restraint equipment is triggered if the seat belt is not fastened.
- Status of seat belt buckles in rear:
No restraint equipment is triggered if the seat belt is not fastened.
The following conditions are taken into account in the event of a vehicle rollover:
- Driver/front passenger seat belt buckle status:
No restraint equipment related to the seat belt is triggered if the seat belt is not fastened. This may be:
- Emergency tensioning retractor
- Canada version or USA version:
- Belt anchor fitting tensioner
- Status of seat belt buckles in rear:
If the seat belt is not fastened, the respective emergency tensioning retractor in the rear is not triggered.
The status of the seat belts (fastened or unfastened) is recorded by a switch in the respective seat belt buckle.
The following table lists the component parts marked with "X", which can be ultimately triggered for the respective accident scenarios.
| Frontal impact | Side impact | Rear impact | Rollover | |
|---|---|---|---|---|
| Driver airbag | X | |||
| Passenger airbag | X | |||
| Front sidebag | X | |||
| Rear passenger compartment side airbag (vehicles with side airbag in the rear) | X | |||
| Window airbag | X | X | ||
| Driver kneebag | X | |||
| Front ETR | X | X | X | X |
| Rear emergency tensioning retractor | X | X | X | X |
| Front seat belt end-fitting tensioner (Canada version or USA version) | X | X | X | |
| Front seat belt force limiter (Canada version, USA version or Japan version) | X | |||
| Gas generator inerting system (vehicles with alternative refrigerant and gasoline engine) | X |
The front passenger airbag is designed with two stages. As a result, the deployment of the airbag can be regulated.
Vehicles with alternative refrigerant and gasoline engine
If inerting is triggered, Argon inert gas flows out of a gas cylinder into the engine compartment. This displaces the atmospheric oxygen in areas close to the engine that present a fire hazard. The risk of a fire caused by refrigerant flowing out of the air conditioning system is reduced.
| Subsystems | |||
| Front passenger seat seat occupancy recognition, basic function | GF91.60-P-1006A | ||
| Control units | |||
| Supplemental restraint system control unit, basic function | GF91.60-P-9890A | ||
| Components | |||
| Inerting system, basic function | Model all (CAR) with code 2U8 (Alternative refrigerant) with gasoline engine |
GF86.10-P-2003A | |
| Seat belt end-fitting tensioner, basic function | Model all (CAR) with code 460 (Canada version) Model all (CAR) with code 494 (US version) |
GF91.40-P-2025A | |
| Seat belt buckle switch, basic function | GF91.60-P-2009A | ||
| Seat position Hall sensor, basic function | Model all (CAR) with code 460 (Canada version) Model all (CAR) with code 494 (US version) |
GF91.60-P-2013A | |
| Seat belt tensioner, basic function | GF91.60-P-2015A | ||
| Driver airbag, basic function | GF91.60-P-2020A | ||
| Front passenger airbag, basic function | GF91.60-P-2021A | ||
| Side airbag, basic function | Model all (CAR) with code 293 (Sidebags in rear) |
GF91.60-P-2022A | |
| Window airbag, basic function | GF91.60-P-2023A | ||
| Knee airbag, basic function | GF91.60-P-2024A |