TELE AID function - GF82.95-P-0001SZ: Notes
MODEL 215.3, 220.0 /1 with CODE (383a) Tele-Aid fixed installation telephone with CODE (494a) USA version
Current and also future vehicle-based services are implemented using the telecommunications control unit (N112).
The vehicle-based services currently supported in the USA are:
- Telematic Alarm Identification on Demand (emergency call system) (TELE AID) (incl. police emergency call number "911") manual/automatic
- MB-Info call
- Roadside assistance call (telediagnosis, Roadside Assistance)
- Tracking (dynamic assignment)
- Remote Door Unlock (vehicle unlocking in an emergency)
- Authorization
All telematics services are integrated into the telecommunications control unit (N112) and run completely automatically. They are displayed in the display of the COMAND operating, display and control unit (A40/3) and in the multifunction display (A1p13) of the instrument cluster (A1). Because position finding is necessary for the services, the navigation part inside the telecommunications control unit (N112) is also used. The navigation part is a Global Positioning System (GPS) receiver in the telecommunications control unit (N112), which makes it possible to determine the exact location. The vehicle's position and direction of travel are determined automatically and kept available in a history. The navigation part receives GPS data from the GPS antenna (A2/23) (model 215) or from the GPS antenna (A2/49a2) (model 220).
The communication part is a cellular phone adapted to the American cellular mobile telephone network and this phone is only used for telematics functions. The communication part sends and receives data via the telephone antenna (A2/22) (model 215) or the telephone antenna (A2/49a1) (model 220).
A prerequisite for using the services, however, is a communication module of the telecommunications control unit (N112) authorized for the corresponding service. In other words, the communication module of the telecommunications control unit (N112) must have been factory-configured with the phone number of the corresponding service provider. In a second step, the user must authorize himself in the Service Center using this phone number. Authorization also takes place to some extent in the factory. The telematics services are activated by pressing the corresponding button in the MB-Info and breakdown assistance button group (S93/6) or for a manual emergency call by pressing the SOS switch (S93/3s1) in the overhead control panel control unit (N70).
After activation, an SMS is sent to the Service Center by the telecommunications control unit (N112). At the same time as the SMS is sent, a voice connection to the Service Center is established immediately.
Function requirements
Each telematics service must be authorized separately. In the event of a defect or without proper authorization, an error message is displayed in the multifunction display (A1p13) of the instrument cluster (A1) and in the display of the COMAND operating, display and control unit (A40/3). The system is operational as soon as circuit 30 is active.
Self-test
With active circuit 15R, the telecommunications control unit (N112) executes a self-test (approx. 3.5 s). If the test is successful, the system is operational.
Basic functions
- Performing self-diagnoses cyclically
- Make vehicle data ready and if necessary transmit them safely
- Sending data messages (via SMS)
- Setting up telephone connections in handsfree mode
Emergency call system
In the event that a driver gets into an emergency situation in a remote location, a service employee can get an overview of the situation inside the vehicle using the data transmitted by the telecommunications control unit (N112) and initiate corresponding remedial measures (automatic emergency call). It is also possible to make a manual emergency call at any time by pressing the SOS switch (S93/3s1) in the overhead control panel control unit (N70).
The emergency call system is activated in the following two ways:
- Automatically in the event of a crash (by the crash data from the supplemental restraint system (SRS))
- Manually by pressing the SOS switch (S93/3s1) in the overhead control panel control unit (N70)
In both cases, an emergency call is automatically transmitted to the nearest emergency call center. Contents of the emergency message are:
- Vehicle position, direction of travel and history
- Vehicle data and crash information (severity of accident)
- Customer data of emergency call service
- Status data
- Fault codes
Ending an emergency call
A call is normally ended by the emergency call headquarters.
The making of an emergency call is canceled after the telecommunications control unit (N112) has attempted to dial 5 times without success.
| TELE AID block diagram | GF82.95-P-0001-02SZ | ||
| TELE AID switch-on/switch-off characteristics, function | GF82.95-P-2000SZ | ||
| Authorization, function | GF82.95-P-2001SZ | ||
| Status indicator, location/function | GF82.95-P-2002SZ | ||
| Emergency call actuation, function | TELE AID emergency call | GF82.95-P-2003SZ | |
| TELE AID telediagnosis | GF82.95-P-2003SZA | ||
| Emergency call telegram generation, function | TELE AID emergency call | GF82.95-P-2004SZ | |
| TELE AID telediagnosis | GF82.95-P-2004SZA | ||
| Emergency call telegram transmission, function | TELE AID emergency call | GF82.95-P-2005SZ | |
| TELE AID telediagnosis | GF82.95-P-2005SZA | ||
| Voice connection to vehicle, function | GF82.95-P-2006SZ | ||
| Telediagnosis, function | GF82.95-P-2008SZ | ||
| MB information, function | GF82.95-P-2010SZ | ||
| Position finding, function | GF82.95-P-3000SZ | ||
| Selecting telephone antenna, function | GF82.95-P-3001SZ | ||
| Restraint system control unit data, function | GF82.95-P-3005SZ |