Power Supply Function
The related parameters of the built-in waveform of the instrument are introduced
as follows:
LV148 LV148
E-01 Long-term overvoltages
The component's resistance to long-term overvoltage is
tested. A generator control fault during driving operation is
simulated.
E-02 Transient overvoltages
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
Copyright © Itech Electronic Co., Ltd.
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