Kia Soul EV: High Voltage Charging System / Description and Operation

Kia Soul EV (PS EV) 2015-2020 Service Manual / EV Battery System / High Voltage Charging System / Description and Operation

Description

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.

Components and Components Location

Components 1. On-Board Charger (OBC)2. Rapid Charge Port3. Normal Charge Port4. High Voltage Battery ...

ON-Board Charger (OBC) Specifications

Specification Maximum Output6.6kWOutput Density0.52kVA/?Size327 X 367 X 105 mmICCBApprox. 1.4kWEVSE6.6kW ...

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