Car-To-X-Communication, Basic Function - GF82.85-P-9905A
Model All (CAR)
with code 362 (HERMES communications module LTE)
with code 365 (Hard drive navigation)
Model All (CAR)
with code 365 (Hard drive navigation)
with code 383 (Ramses Entry communication module (4G))
Model All (CAR)
with code 365 (Hard drive navigation)
with code 384 (Ramses High communication module (4G))
Overview
This document contains information on:
- General
- Function requirements
- Function
- Warnings
General
Car-to-X-Communication enables wireless information exchange between vehicles, but also between vehicles and transport infrastructure.
Car-to-X-Communication makes it easier to detect hazardous situations (e.g. accident (2), traffic jam, fog (5), heavy rain (6), road glaze) via sensors in or on the vehicle. The communication module in the vehicle informs other users of Car-to-X-Communication about the hazardous situation via Wi-Fi or mobile phone network.
As with Live Traffic Information, messages distributed via Car-to-X are displayed in the navigation map in the multimedia system.
Car-to-X warns the driver either visually or acoustically, depending on the type of message, as they approach a hazardous area. The data exchange takes place via the telematics services control unit.
Function requirements
- Service is activated.
- Service is available in your country.
- Telematics services control unit is connected to the vehicle back end.
Function
The multimedia system automatically recognizes hazardous situations and reports these to the vehicle back end together with position information.
For Car-to-X-Communication, the multimedia system evaluates the following information in the vehicle to detect hazardous situations:
- Hazard warning system
- Rear fog lamp
- Windshield wiper
- Accident (2) and breakdown management (crash information, emergency call)
- Vehicle speed
- Low-grip signal from ESP®
- GPS position and time
The driver also has the option to manually distribute a message about a general hazard via the multimedia system.
Mercedes-Benz AG checks the received messages for plausibility in the vehicle back end. All vehicles participating in Car-to-X-Communication regularly report to the vehicle back end with their position and are then provided with any messages relevant to their surroundings.
Mercedes-Benz AG pseudonymizes the data, meaning that identifying data are replaced. Mercedes-Benz AG deletes the data after a reasonable period of time (a few weeks).
Example illustration of warning displays
Warnings
The multimedia system displays the warnings in the navigation card using corresponding symbols.
Information on moving construction sites (7) comes from an external provider.
When approaching a hazardous area, the warning is issued via the voice output from a vehicle speed of at least 60 km/h. There is no warning via voice output for weather hazards.