Hyundai Ioniq (AE): Hybrid Motor Cooling System / Specifications

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.

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.