Electric vehicle can be charged by two methods, rapid charge and normal charge.
In the case of normal charge, the battery is charged after
220V AC power is transformed to DC power by On-Board Charger (OBC). In
the case of rapid charge, the DC power from charging station goes
directly to the battery.
While charging the vehicle, the driving of the vehicle is
restricted logically for safety. And the vehicle cannot be charged by
two charge methods at the same time.
The logic is controlled by BMS ECU and IG relays #1,2,3.
IG 3 signal activates the Low Voltage DC-DC Converter (LDC),
BMS ECU, Motor Control Unit (MCU), Vehicle Control Unit (VCU) and
On-Board Charger (OBC), and it enables the vehicle to be charged.
•
IG3 Signal: It is the signal only for the Electric Vehicle.
The signal goes to Low Voltage DC-DC Converter (LDC), BMS ECU, Motor
Control Unit (MCU), Vehicle Control Unit (VCU) and On-Board Charger.
•
IG3 #1 Relay : When the high voltage controller operates, IG3
signal is provided through the IG3 #1 relay, except for normal or rapid
charge,.
•
IG3 #2 Relay : In the case of normal charge, it operates to provide the IG3 signal.
•
IG3 #3 Relay : In the case of rapid charge, it operates to provide the IG3 signal.
Removal
Put on gloves to protect your hands.
•
When prying with a flat-tip screwdriver, wrap it with
protective tape, and apply protective tape around the related parts, to
prevent damage.
•
Use a plastic panel ...
Inspection
When removing the battery pack assembly to inspect the
battery system, it can be connected to vehicle by using the SST
0K918-E4100, 0K375-E4100, 0K375-E4200. Before installing the battery
system assembly, check if the battery is OK by using the SST.
...