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

Hyundai Ioniq (AE) 2017-2025 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) 2017-2025 Service Manual: Description and operation

Function of Safety Power WindowWhen driver door power window auto-up switch is operated, safety function is activated.1.Safety function conditionWhen detect the force of 100N (using the 10N/mm spring) during the window rising, window is reversed.2.Length of window reversing (except holding the auto-up switch)– When detect the jamming during the 4mm - 250mm from top of the door...

Hyundai Ioniq (AE) 2017-2025 Service Manual: General safety information and caution

Safety PrecautionPrecautions To Take Before Servicing High Voltage System • Since hybrid vehicles contain a high voltage battery, if the high voltage system or vehicles are handled incorrectly, this might lead to a serious accidents like electric shock and electric leakage...