gf9140p1002a

Rear end collision warning system, basic function

Typ gf · téma 91.40 · verze 0105 · 2020-09-09

Platí pro: Model all (CAR) with code 23P (Drive package) Model all (CAR) with code P20 (Driving assistant package Plus)

Není k dispozici v jazyce „cs“; zobrazeno v jazyce Angličtina.

Zařazení

Funkční skupina 3 Nástavba › 91 Sedadla, lůžka, zádržný systém › 91.40 Bezpečnostní pásy, předpínače bezpečnostních pásů — Řada 900 (modely 9**) · Řada 902 (modely 9**) · Řada 904 (modely 918, 919, 924, 925, 938, 943, 957) · Řada 906 (modely 917, 918, 924, 953)

Platí také pro motory/převodovky: 139 ***, 254 ***, 256 ***, 272 ***, 276 ***, 282 ***, 457 9**, 541 9**, 542 9**, 608 ***, 700 4**, 700 420, 700 421, 700 422, 700 423, 715 3**, 715 5**, 722 6**, 722 9**, 724 ***, 724 0**, 724 033, 724 044, 724 045, 724 1**, 724 103, 724 114, 724 115, 724 120, 725 ***, 725 0**, 725 035, 725 037, 725 038, 725 085, 725 1**, 739 390, 739 391, 739 395, 739 396, 739 397, 739 398, 739 399, 740 698, 743 3**, 743 4**, 743 498, 746 971, 924 9**, 924 910, 925 9**, 926 9**

GF91.40-P-1002A

Rear end collision warning system, basic function

08.09.2020

Model

all (CAR)

with code 23P (Drive package)

Model

all (CAR)

with code P20 (Driving assistant package Plus)

Overview

This document contains the following information:

General

Function requirements

Collision warning system escalation stages

General

The rear collision warning system is an expansion of the preventative occupant protection system and also takes into account hazardous situations that are caused by the following vehicle (rear impact). The traffic situation to the rear of one's own vehicle is detected by radar sensors at the rear area of the vehicle. The rear collision warning system analyzes the radar sensor system information and calculates the closing speed of the following vehicle as well as its distance to your vehicle. In the case of an imminent rear impact, the system warns the following vehicle and initiates different preventative passenger protection measures. Possible accident consequences for the vehicle occupants can thus be reduced.

Rear end collision warning system, basic function

P30.30-2788-79

1

Pull-up vehicle

t2

Preparation of the stationary vehicle for a collision

2

Vehicle, equipped with rear-end collision warning system

t3

Activate preventive occupant safety measures (brakes applied)

3

Radar sensor system detection range

t4

Secure vehicle after collision (brakes applied)

t1

Vehicle detection and warning about the traffic to the rear

Function requirements

Engine running or drive train operational.

No trailer on vehicle (vehicles with trailer hitch)

Collision warning system escalation stages

1 The rear end collision warning system warns the traffic following behind in the event of an imminent rear impact. The rear hazard warning lamps is activated with a high flashing frequency thereby attracting the attention of the traffic following behind.

2 In the event of an ongoing collision hazard, preventive occupant protection measures are activated, including automatic seat belt tensioning.

3 If the driver's own vehicle is at a standstill during the hazard situation, the brake pressure of the service brake is increased. Due to this, the forward motion significantly reduces the occupant load during a collision and consequential collisions can be avoided.

After a rear impact, the system is not available until it is enabled again using the diagnostic tester.

Function schematics

Rear end collision warning system, function schematic

Model 118, 177, 247 with code 23P (Drive package)Model 167 with code 23P (Drive package)Model 167 with code P20 (Driving assistant package Plus)Model 293 with code 23P (Drive package)

PE91.40-P-2502-97A

Model 213, 238, 257, 290 as of model year 2021 with code 23P (Drive package)Model 213, 238, 257, 290 as of model year 2021 with code P20 (Driving assistant package Plus)

PE91.40-P-2502-97C

Rear end collision warning system, function schematic

Model 223 with code 23P (Drive package)Model 223 with code P20 (Driving assistant package Plus)

PE91.60-P-2502-97B

Further basic functions

Brakes, basic function

GF42.00-P-9900A

Traffic area monitoring, basic function

GF54.71-P-1000A

Actuate turn signal light, basic function

GF82.10-P-1023A

Control units

Intelligent driving control unit, basic function

GF30.30-P-9890A

Electronic Stability Program control unit, basic function

GF42.45-P-9890A

Components

Intelligent driving radar sensor, basic function

GF54.71-P-2005A

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