Driving Cycle/Engine-Off Cycle, Examples - SN00.01-P-0008-01A

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Model all (CAR)

STAR2 and STAR3

12 V on-board electrical system: Screen with example of individual engine-off cycle

Courtesy of MERCEDES-BENZ USA

¹ Detailed explanations of additional data field

Non-operational time: Duration of considered engine-off cycle
No-load current value: Negative no-load current values (30 s/3 min after engine is switched off) can point to an active circuit after the vehicle is switched off (s. 12 V on-board electrical system of individual engine-off cycle conspicuous et seq.) Only relevant if no-load current switch is active. The substitute value will otherwise be shown.
Charge balance: Energy balance between charging and discharging
Diagnostic device connected: Connected diagnostic device is a yes/no variable, i.e. is an additional consumer connected that is keeping the systems active.
Bus keepawake control unit detection: The bus keepawake control unit is only detected if it was active for at least 42 minutes, it is shown in the EIS (electronic ignition lock control unit) by the fault code U116000.
Under voltage/deep discharging: The deep discharge protection disconnects all consumers that are connected to circuit 30T if the cut-off voltage is reached, and only switches on again from a minimum voltage.

See also function of battery disconnect switch (BTS) in the document "Stored data of driving cycle - Details" SN00.01-P-0008-09A .

Example 1: 12 V on-board electrical system with individual engine-off cycle

Courtesy of MERCEDES-BENZ USA

i Noticeable problem: CAN bus awake for long period, the vehicle was supported by an external power supply system (48V), the charge balance would otherwise be much more negative, recharging thus occurred. For this purpose, the 48 V data must also be consulted.

Example 2: 12 V on-board electrical system with individual engine-off cycle

Courtesy of MERCEDES-BENZ USA

i Noticeable problem: Standing lights and circuit 15R ON for a long period (values for the circuits Kl15C, Kl15R and Kl15 are shown when vehicle is stationary, if the value is not equal to 0.)

12 V on-board electrical system: Screen with individual values at vehicle standstill

Courtesy of MERCEDES-BENZ USA

12 V on-board electrical system: Screen with example of individual driving cycle

Courtesy of MERCEDES-BENZ USA