Power Supply Function
Transient overvoltages may occur in the electric system due
to the switching off of loads and due to short accelerator tip-
ins. These overvoltages are simulated by means of this test.
Short Short time mode (3 times)
Endurance Endurance mode (1000 times)
E-03 Transient undervoltages
Transient undervoltages in the electric system may occur
due to switching on of loads. These undervoltages are simu-
lated by means of this test.
E-04 Jumpstart / recuperation
Jump starting of the vehicle is simulated. The maximum test
voltage results from commercial vehicle systems and their
elevated electric system voltages.
E-
06A
Slow decrease and increase of the supply voltage (without
energy storage )
The slow decrease and increase of the supply voltage is si-
mulated as it occurs during the slow discharging and charg-
ing procedure of the vehicle battery.
T1 Holding
Time
Holding time
E-
06B
Slow decrease and increase of the supply voltage (with en-
ergy storage – Part 1 )
Checks will slow the supply voltage decrease to the energy
storage protection voltage, followed by energy storage
disconnection.
T1 Holding
Time
Holding time
E-07 Slow decrease, fast increase in the supply voltage
This test simulates the slow decrease of the vehicle system
voltage to the energy storage protection voltage followed by
shutdown to 0V and the sudden reconnect the system volt-
age by a charged or new energy storage battery.
T1 Holding
Time
Holding time
T1 Rising
Time
Rising time
E-08 Reset behavior
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