Energy Management, Function - GF54.10-P-0003GW

Model 463 

as of Model year 2013 

Model 463 (except 463.342) as of production date April 3rd, 2018  ,

Model 463 (except 463.342) up to production date April 2nd, 2018, Model 463.342 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Function requirements, general 

• Circuit 30 ON

Energy management, general 

Energy management manages the provision (supply) and consumption (management) of electrical energy with the aim of ensuring the startability of the engine and a stable supply to all electrical consumers.

The following components are involved in energy management:

• Battery sensor (monitoring of on-board electrical system battery charge level (G1))
• On-board electrical system battery (energy storage and supply when the engine is off)
• Auxiliary battery (G1/7) (Energy supply for "shift-by-wire gearshift" with engine off (Model 463 (except 463.342), Model 463.342, up to production date April 2nd, 2018 except code MJ7 (ECO start/stop function)))
• Auxiliary battery for ECO start/stop function (G1/13) (Energy supply for "shift-by-wire gearshift" with engine OFF, on-board electrical system power supply with automatic engine start (Model 463 (except 463.342) up to production date April 2nd, 2018, Model 463.342, with code MJ7 (ECO start/stop function)))
• Alternator (energy generation)
• CDI control unit or ME-SFI control unit (generator management)
• SAM control unit (energy management, control of on-board electrical system support (with CODE MJ7 (ECO start/stop function)))

Transport mode (as of 03 04 2018 except Model 463 342) 

The transport mode is activated in the production plant at the end of the production process, and it sets the overall vehicle into a defined special condition.

With targeted interventions in individual electronics systems the following is achieved:

• Reduction of shipping damage and accidents
• Best-possible charging of on-board electrical system battery through optimized energy management
• Avoidance of damage to and contamination of the vehicle interior as well as theft of loose parts from the vehicle interior
• Discontinuation of transport protection seal

The transport mode remains active on its way from the production plant to the dealers and company-owned sales and service outlets around the world up to the so-called delivery inspection and the final handover to the end customers.

The transport mode is automatically deactivated from a total distance traveled of more than 350 km whereupon it cannot be activated again. Up to this limit, the transport mode can be deactivated using the diagnosis tester or key combinations at any give time and activated with the diagnosis tester again. The fault memory is not actively deleted when the key combination is used for deactivation.

This means that the "Transport mode active" entry remains stored.

This must be deleted using the diagnosis tester when the vehicle is inspected for the first time.

To support the processes in Sales and Logistics the vehicle's currently possible residual service life and, if necessary, appropriate care instructions for the on-board electrical system battery are shown on the instrument cluster when the transport mode is active.

The energy management system's continuously determined condition of the on-board electrical system battery is rendered fully transparent at any given time without the use of any additional measuring instruments during the vehicle delivery period. This display provides the operating personnel with specific instructions on what to do to guarantee a high delivery quality with regard to the on-board electrical system battery.

The individual transport mode functionalities are split up for numerous individual systems. The core here is the central control of the transport mode by the energy management system. According to the energy management specifications, targeted interventions (function restrictions and changes) are carried out in individual electronics systems.

The following function limits or modifications are implemented during the transport mode:

• Limitation of vehicle speed to 40 km/h
• Electric locking of front passenger door and trunk lid

• Disabling of roof opening function on vehicles with code F15 (Glass electric sliding roof)
• Monitoring of circuit 15 at standstill and acoustic feedback, when the vehicle is at a standstill for more than 10 s with the ignition switched on and the engine switched off
• Optimized quiescent current management, when the vehicle is parked for an extended period (e.g. transportation by ship)
• Limit exterior light functions
• Implement display on instrument cluster
• Adjust fault memory handling

The following tasks are carried out by the energy management system:

• Set specific consumer shutoff stages
• Optimized charging of on-board electrical system battery:
  • Activate fast battery charging
  • Deactivate alternator management
• Deactivation of ECO start/stop function
• Early opening of battery disconnect switch relay
• Restriction of closing reasons of battery disconnect switch relay

The following graph shows, for example, the display of the various transport mode system conditions in the instrument cluster.

Major assembly coordinator: 

The major assembly coordinator is integrated into the CDI control unit or the ME-SFI control unit and forms the interface between the energy management system and the alternator. The CDI control unit or the ME-SFI control unit communicates with the alternator over the drive train LIN. The major assembly coordinator regulates the alternator's power output to match the energy management system specifications, taking engine load into consideration.

The recording and evaluation of the relevant variables for this are conducted by the following components:

• Alternator
• CDI control unit or ME-SFI control unit
• SAM control unit

	Engine on energy management, function		GF54.10-P-1060GW
	Engine off energy management, function	Model 463 (except 463.342) as of Model year 2019	GF54.10-P-1050GWM
		Model 463 (except 463.342) as of Model year 2013 up to Model year 2019 Model 463.342 as of Model year 2013	GF54.10-P-1050GW
	ECO start/stop function energy management, function	Model 463 (except 463.342) as of Model year 2019	GF54.10-P-1040GWM
		Model 463 (except 463.342) as of Model year 2013 up to Model year 2019 with code MJ7 (ECO start/stop function) Model 463.342 as of Model year 2013 with code MJ7 (ECO start/stop function)	GF54.10-P-1040GW
	DC/AC converter function	Model 463 as of Model year 2013 with code E47 (Socket, 115 V)	GF54.10-P-2005GW