Hyundai Ioniq: Hybrid Motor Cooling System / Specifications

Description and operation

Description• Various devices containing semiconductor are used in HPCU.And heat is generated when the HPCU operates.• These devices are connected to the high voltage directly and cause heat hotter than the electrical devices of an internal combustion engine...

Electric Water Pump(EWP). Description and operation

Description• Function : It circulates the coolant for the hybrid system (HPCU, drive motor, and HSG).• Operating Principles: When the coolant temperature exceeds the limit set in the MCU in the hybrid system, the motor control unit (MCU) sends a command to the electric water pump (EWP) through the CAN communication to operate the EWP...

Other information:

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

System OverviewParking Distance Warning (PDW) is an electronic driving aid that warns the driver to be cautious while parking or driving at low speed. The sensor uses ultrasonic waves to detect objects within proximity of the vehicle.PDW consists of four RPS sensors which are detecting the obstacles and transmit the result separated into three warning levels, the first, second and third to BCM by Lin communication...

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...