Caravan Control Unit, Function - GF54.21-D-5010TSA
Model 907
with code JA3 (Intelligent body control.)
Block diagram of MBAC
General
The MB Advanced Control control unit (N175) is a control unit with app applications for smartphones that enables connection to typical camper van systems such as the cameras, heating, refrigerator, gas, fresh water, wastewater, etc. It combines the systems and, via the user interface (HMI) as well as smart devices, provides a status display and a control option. It is supported in this by a PC-based, graphic configuration tool.
It is possible to control caravan accessories via the head unit or the smartphone app.
Properties
The configuration specific to body manufacturers is stored in "VeDoc". Individual coding can be transferred into the MBAC using XENTRY Diagnosis Software with menu item "Configuration - Manual Settings - VeDoc".
The MBAC can be installed with or without video interface.
During SCN coding, the individual configuration is deleted and overwritten with a standard factory coding ("DEACTIVATED/only Bluetooth® pairing button").
Up to three MBACs can be connected to each other to increase the number of inputs and outputs.
Additional function requirements
The MBAC is independent of the on-board electrical system battery. If the MBAC is disconnected from the secondary battery, the MBAC switches to operating mode OFF.
Basic functions of the MBAC
The MBAC has the following basic functions:
- Control
- Status scan
- Management of Bluetooth® devices
- Compliant additional devices
- Mapping of additional devices
- Services for additional devices
Functional reliability
The MBAC (Mercedes-Benz Advanced Control) provides the body manufacturer with an interface, not a system. The functionalities of the MBAC, made available via the interface, are safeguarded in accordance with ISO 26262. Validation of functions in which the MBAC is involved as well as compliance with the current standards (e.g. ISO 26262 on functional reliability) and specifications are always the responsibility of the body manufacturer.
Control
The MBAC can operate the following equipment:
- Wake up the parameterizable special module (PSM).
- Roof ventilator control
- Awning control
- Pop-up roof control
- Control of LED of Bluetooth® pairing/reset button
- Sinus power inverter control
- Stabilizing jack
- Water drain valve control
- Roller blind control
- Light control
- Heater control
- Air conditioning system control
- Refrigerator control
- Step control
- Control of satellite antenna
- Operation of satellite reception
- Control of roof ventilation flap
- Lifting platform control
- TV pullout control
- Battery management
- Motion detector
- Analog sound generator
The following functions are purely comfort functions.
Operation of the following equipment is observed here:
- Air conditioning
- Lighting circuit/ambiance
- Motion detector
- TV drawer
- Sound system
- Water pump
Actuator functions are functions with potential safety relevance.
However, a final assessment of the safety relevance can only be provided by the manufacturer of the overall system
To safeguard these functions Mercedes-Benz enables the actuator functions to be locked when driving. The functions are locked in the MBAC via the configuration file at a speed of v > 0 km/h.
If higher validation is required, this should be implemented by the body manufacturer. Fused signals (e.g. speed, ignition) from the PSM can be used for this.
Operation of the following equipment is observed here:
- Windows/roof hatches
- Step
- Operation of satellite reception
- Roller blind
The function for the windshield and side windows requires a speed check.
Roller blinds on the rear window that do not impair the driver's view can be excluded from this.
- Awning
- Water drain
- Slide-out window
The control of the individual equipment is shown in separate documents.
Status scan
The MBAC can query the status of the following scopes:
- Vehicle status
- Air conditioning system status
- Touch events
- IP cameras
- Heating system status
- Light status
- Environmental data
- Pop-up roof status
- Roof ventilator status
- Awning status
- Water drain valve status
- Roller blind status
- Flap sensor status
- Fill levels
- Refrigerator status
- Door sensors
- Window sensors
- Status of roof ventilation flap
- Status of button of roof ventilation flap
- Rain sensor
- Step status
- Battery management
- Wake-up button status
- Bluetooth® pairing/reset button status
For the display of status information in installed displays, access to these scopes is read-only.
The status query of the individual components is shown in separate documents.
The following MBAC functions are shown in separate documents:
- Management of Bluetooth® devices
- Compliant additional devices
- Mapping of additional devices
- Services for additional devices
| Caravan control unit, technical data | GF54.21-D-5010-01TSA | |
| Caravan control unit, pin assignment | Vehicle plug, general | GF54.21-D-5010-02TSA |
| Caravan control unit, pin assignment | Vehicle plug 1 | GF54.21-D-5010-02TSB |
| Caravan control unit, pin assignment | Vehicle plug 2 | GF54.21-D-5010-02TSC |
| Caravan control unit, pin assignment | Vehicle plug 3 | GF54.21-D-5010-02TSD |
| Caravan control unit, pin assignment | Vehicle plug 4 | GF54.21-D-5010-02TSE |
| Caravan control unit illustration of additional equipment, function | GF54.21-D-5012TSA | |
| Caravan control unit services for additional equipment, function | GF54.21-D-5013TSA | |
| Caravan control unit conforming additional equipment, function | GF54.21-D-5014TSA | |
| Caravan control unit battery management control, function | GF54.21-D-5015TSA | |
| Caravan control unit battery management status, function | GF54.21-D-5016TSA | |
| Caravan control unit vehicle interior climate control, function | GF54.21-D-5017TSA | |
| Caravan control unit vehicle interior climate control status, function | GF54.21-D-5018TSA | |
| Caravan control unit attachments control, function | GF54.21-D-5019TSA | |
| Caravan control unit attachments status, function | GF54.21-D-5020TSA | |
| Caravan control unit drain valve control, function | GF54.21-D-5029TSA | |
| Caravan control unit drain valve status, function | GF54.21-D-5030TSA | |
| Caravan control unit power inverter control, function | GF54.21-D-5032TSA | |
| Caravan control unit management of Bluetooth (R) devices, function | GF54.21-D-5033TSA | |
| Caravan control unit control of Bluetooth (R) button LED, function | GF54.21-D-5034TSA | |
| Caravan control unit parameters of Bluetooth (R) antenna, function | GF54.21-D-5035TSA | |
| Caravan control unit status of buttons and sensors, function | GF54.21-D-5036TSA | |
| Caravan control unit light control, function | GF54.21-D-5037TSA | |
| Caravan control unit light status, function | GF54.21-D-5038TSA | |
| Caravan control unit sound generator control, function | GF54.21-D-5039TSA | |
| Caravan control unit refrigerator control, function | GF54.21-D-5041TSA | |
| Caravan control unit refrigerator status, function | GF54.21-D-5042TSA | |
| Caravan control unit vehicle status, function | GF54.21-D-5049TSA | |
| Signal list, caravan control unit, solar system, function | GF54.21-D-5052TSA | |
| Signal list, caravan control unit, satellite system, function | GF54.21-D-5054TSA | |
| Signal list, caravan control unit, heating system, function | GF54.21-D-5057TSA | |
| Signal list, caravan control unit, battery management, function | GF54.21-D-5058TSA | |
| Signal list, caravan control unit, refrigerator, function | GF54.21-D-5059TSA | |
| Signal list, caravan control unit, air conditioning system, function | GF54.21-D-5060TSA | |
| Signal list, caravan control unit, charger, function | GF54.21-D-5062TSA | |
| CAN signal list for caravan control unit | GF54.21-D-5063TSA | |
| Caravan display control unit signal list, function | GF54.21-D-5064TSA | |
| Signal list, caravan control unit, buttons and sensors, function | GF54.21-D-5065TSA | |
| Signal list, caravan control unit, telematics, function | GF54.21-D-5066TSA | |
| Signal list, caravan control unit, switch and display lighting, function | GF54.21-D-5067TSA | |
| Signal list, caravan control unit, language setting, function | GF54.21-D-5068TSA | |
| Signal list, caravan control unit, diagnosis, function | GF54.21-D-5069TSA | |
| Signal list, caravan control unit, high speed video link (HSVL), function | GF54.21-D-5071TSA | |
| Signal list, caravan control unit, vehicle status, function | GF54.21-D-5072TSA | |
| Signal list, caravan control unit, software release, function | GF54.21-D-5073TSA | |
| Signal list, caravan control unit, rebooting, function | GF54.21-D-5074TSA | |
| Signal list, caravan control unit, wake-up, function | GF54.21-D-5075TSA | |
| Caravan control unit inputs and outputs signal list, function | GF54.21-D-5076TSA | |
| Caravan control unit date and time signal list, function | GF54.21-D-5077TSA | |
| Caravan control unit odometer signal list, function | GF54.21-D-5078TSA | |
| Overview of system components of caravan control unit | GF54.21-D-9992TSA |