KIA Niro: AHB(Active Hydraulic Boost) System
Kia Niro - First generation - (DE) (2017-2022) - Service and Repair Manual / Service Highlight / AHB(Active Hydraulic Boost) System
- AHB(Active Hydraulic Boost) System / Description And Operation
- Brake Actuation Unit Repair procedures
- Pressure Source Unit Repair procedures
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AHB(Active Hydraulic Boost) System / Description And Operation
Description
Regeneration Brake System
During deceleration or braking of an electric vehicle or HEV, the drive motor
acts as an alternator and charges the battery by
converting the vehicle's kinetic energy generated during braking into electrical
Brake Actuation Unit Repair procedures
Brake Actuation Unit Components and components location
Components
Warning
IBAU(Intergrated Brake Actuation Unit) must not be disassembled.
Integrated Brake Actuation Unit (IBAU) ECU
Reservoir
Pedal Simulator
Integrated Brake Actuati
Pressure Source Unit Repair procedures
Pressure Source Unit Components and components location
Components
Warning
PSU (Presser Source Unit) must not be disassembled.
Pressure Source Unit (PSU)
Pressure Source Unit (PSU) connector
Motor
Filler adapter
Bracket
Accumulat
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Electrical Circuit Inspection Procedure
Open Circuit Test
Procedures for Open Circuit
Continuity Check
Voltage Check
If an open circuit occurs (as seen in (FIG. 1)), it can be found by
performing Step 2 (Continuity Check Method) or Step 3
(Voltage Check Method) as shown b
Pre-Charge Relay
Specification
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 h
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