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

Hyundai Ioniq (AE) 2017-2024 Service Manual / Hybrid Control System / High Voltage Battery Control System / Main 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]

Safety Plug. Repair procedures

Removal1.Turn the ignition switch OFF and disconnect the auxiliary 12V battery negative (-) terminal.2.Remove the safety plug cover (A).3.Unfasten the hook (A) and then remove the safety plug (C) by pulling the lever (B) to the direction of arrow...

Main Relay. Specifications

Specification Item Specification ContactRated Voltage (V)450Rated Current (A)80CoilOperating Voltage (V)12Resistance (Ω)20...

Other information:

Hyundai Ioniq (AE) 2017-2024 Owner's Manual: Horn, Heated Steering Wheel

Horn To sound the horn, press the area indicated by the horn symbol on your steering wheel (see illustration). The horn will operate only when this area is pressed. NOTICE Do not strike the horn severely to operate it, or hit it with your fist. Do not press on the horn with a sharp-pointed object...

Hyundai Ioniq (AE) 2017-2024 Service Manual: Description and operation

DescriptionThe high voltage battery system consists of the BMS ECU (Battery Management System ECU), Power Relay Assembly (PRA), safety plug, battery temperature sensor, and battery ambient sensor. Especially the BMS ECU controls SOC (State Of Charge), power, cell balancing, cooling and troubleshooting of the high voltage battery system...