Inverter Assembly 1 Inverter Assembly Components Inverter DC

Inverter Assembly 1

Inverter Assembly Components – Inverter • DC AC high voltage – Variable-voltage System • DC 201. 6 V stepped up to max. DC 500 V – DC-DC Converter • DC 201. 6 V stepped down to DC 12 V – A/C Inverter • DC AC to drives the A/C compressor 2

Inverter Assembly Components Inverter Assembly Variablevoltage System Inverter MG 2 HV Battery A/C Inverter DC - DC Converter 3 MG 1

Inverter Assembly Variable-voltage System – DC 201. 6 V Max. DC 500 V conversion Max. DC 500 V DC 201. 6 V Inverter Assembly Variablevoltage System • IPM (IGBT) • Reactor MG 1 DC 500 V Inverter (IPM) AC 500 V MG 2 HV Battery : Discharge 4 : Charge

Inverter Assembly Variable-voltage System – System Diagram Boost Converter IGBT IPM Inverter Power Transistor IPM Reactor MG 1 HV Battery MG 2 5 IPM: Intelligent Power Module IGBT: Insulated Gate Bipolar Transistor

Inverter Assembly Variable-voltage System – Voltage boost-up operation Variable-voltage System 201. 6 V HV Battery 6 ON Inverter

Inverter Assembly Variable-voltage System – Voltage boost-up operation Variable-voltage System 201. 6 - 500 V 201. 6 V HV Battery 7 OFF ON Inverter

Inverter Assembly Variable-voltage System – Voltage reduction operation (when charging) Variable-voltage System ON HV Battery 8 Inverter

Inverter Assembly Variable-voltage System – Voltage reduction operation (when charging) Variable-voltage System OFF ON HV Battery 9 Inverter

Inverter Assembly Variable-voltage System – Voltage reduction operation (when charging) Variable-voltage System ON HV Battery 10 Voltage is regulated by IGBT duty Inverter

Inverter Assembly Inverter Operation – Motor drive Inverter IPM MG ON U ON 11 W V

Inverter Assembly Inverter Operation – Motor drive Inverter IPM ON MG ON U ON 12 W V

Inverter Assembly Inverter Operation – Motor drive Inverter IPM MG ON U ON 13 W V

Inverter Assembly Inverter Operation – Motor drive Inverter IPM MG ON U ON 14 ON W V

Inverter Assembly Inverter Operation – Motor drive Inverter IPM MG ON U ON 15 W V

Inverter Assembly Inverter Operation – Motor control Motor Torque is controlled by the current value High Torque Low Torque 16 Motor Speed is controlled by the frequency High Speed Low Speed

Inverter Assembly Inverter Operation – Regeneration Regenerative Voltage Inverter to Variable-voltage System IPM MG U W V 17

Inverter Assembly Inverter Operation – Regeneration Regenerative Voltage Inverter to Variable-voltage System IPM MG U W V 18

Inverter Assembly Inverter Operation – Regeneration Regenerative Voltage Inverter to Variable-voltage System IPM MG U W V 19

Inverter Assembly Inverter Operation – Regeneration Regenerative Voltage Inverter to Variable-voltage System IPM MG U W V 20

Inverter Assembly Inverter Operation – Regeneration Regenerative Voltage Inverter to Variable-voltage System IPM MG U W V 21

Inverter Assembly DC – DC Converter – DC 201 V DC 12 V Inverter Assembly HV Battery Variablevoltage System MG 1 Inverter MG 2 DC – DC Converter DC 201. 6 V DC AC AC 201. 6 V AC 12 V AC DC DC 12 V Auxiliary Battery 22

Inverter Assembly DC – DC Converter – Operation DC – DC Converter DC 201. 6 V DC 12 V DC AC Transformer Rectifier Diode Smoothing Circuit Auxiliary Battery 23

Inverter Assembly A/C inverter – DC 201. 6 V AC 201. 6 V conversion A/C ECU Target Compressor Speed DC 201. 6 V HV ECU AC 201. 6 V A/C Inverter HV Battery Inverter Assembly 24 DC 201. 6 V AC 201. 6 V Electric Inverter Compressor

Inverter Assembly Cooling System – Cooling circuit is used for inverter assembly – Separate cooling system from engine Reservoir Tank Pump MG 1 / 2 Radiator Inverter 25 Radiator Electric Water Pump