Hyundai Ioniq: Hybrid Control System / Brake Switch. Description and operation

HCU (Hybrid Control Unit). 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...

Brake Switch. Specifications

Specification Item Brake Pedal Release Brake Pedal Push Switch 1Max...

Other information:

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

DescriptionIn ordinary cars, the mechanical water pump mounted on the engine for heating purposes is activated to circulate the cooling water, but in hybrid cars, AEWP is used to circulate the cooling water when the engine is not operating. Classification System Cooling water used Mechanical water pump AEWP Purpose of use Note (role of AEWP) Engine Heater WHRS While Engine is working(AEWP activated)OOOOnOffCooling engine(main function)-Heating-Exhaust heat recovery and WHRS cooling-OnFast warm -up while cooling or heating is turned onIncreased volume of cooling water circulationRight after engine is turned off(EWP working)XOOOffOnHeatingIn the EV mode, the cooling water is circulated towards the heater...

Hyundai Ioniq (AE) 2017-2025 Service Manual: CVVT (Continuously Variable Valve Timing) System. Description and operation

DescriptionContinuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work...