Hyundai Ioniq: High Voltage Battery Control System / Pre Charge Relay. Description and operation

Hyundai Ioniq (AE) 2017-2024 Service Manual / Hybrid Control System / High Voltage Battery Control System / Pre Charge Relay. Description and operation

Description

The Power Relay Assembly (PRA) consists of the positive and negative main relays, pre-charge relay, pre-charge resistor and battery current sensor. It is located inside the battery pack assembly and controls the high voltage power circuit between the high voltage battery and inverter by the control signal of BMS ECU.

[PRA Operation Sequence]

Main Relay. Repair procedures

Removal • Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system...

Pre Charge Relay. Specifications

Specification Item Specification ContactRated Voltage (V)450Rated Current (A)20CoilOperating Voltage (V)12Resistance (Ω)40...

Other information:

Hyundai Ioniq (AE) 2017-2024 Service Manual: Sunvisor. Repair procedures

Replacement • Put on gloves to prevent hand injuries. • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components...

Hyundai Ioniq (AE) 2017-2024 Service Manual: Motor Control Unit(MCU). Schematic diagrams

Diagram System CircuitA high-capacity power module is applied to the two high-voltage motors.The power module consists of a high - speed switching circuit that is isolated from the IGBT and DIODE circuits.The capacity of the high-voltage battery is approx...