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Comprehensive Overview of Inverter Assembly Components and Operation

Explore the intricate system of an inverter assembly, including components such as DC-DC converters, IPM, IGBT, reactors, and more. Learn about variable-voltage systems, motor drive control, and regeneration in this detailed guide.

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Comprehensive Overview of Inverter Assembly Components and Operation

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  1. Inverter Assembly

  2. Inverter Assembly • Components • Inverter • DC  AC high voltage • Variable-voltage System • DC201.6V stepped up to max. DC500V • DC-DC Converter • DC201.6V stepped down to DC 12V • A/C Inverter • DC  AC to drives the A/C compressor

  3. MG1 MG2 Inverter Assembly • Components Inverter Assembly • Inverter Variable-voltage System HV Battery A/C Inverter DC - DC Converter

  4. MG1 MG2 Inverter Assembly • Variable-voltage System • DC 201.6V  Max. DC 500V conversion Max. DC 500V  DC 201.6V Inverter Assembly Inverter (IPM) • Variable-voltage System • IPM (IGBT) • Reactor DC 201.6V DC500V AC500V HV Battery : Discharge : Charge

  5. Inverter Assembly • Variable-voltage System • System Diagram Power Transistor Boost Converter Inverter IPM IPM IGBT Reactor MG1 HV Battery MG2 IPM: Intelligent Power Module IGBT: Insulated Gate Bipolar Transistor

  6. Inverter Assembly • Variable-voltage System • Voltage boost-up operation Variable-voltage System Inverter 201.6V ON HV Battery

  7. Variable-voltage System Inverter Variable-voltage System Inverter 201.6V ON HV Battery HV Battery Inverter Assembly • Variable-voltage System • Voltage boost-up operation 201.6 - 500V OFF

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  22. MG1 MG2 Inverter Assembly • DC – DC Converter • DC201V  DC 12V Inverter Assembly HV Battery Variable-voltage System Inverter DC – DC Converter DC  AC AC 201.6V  AC 12V AC  DC DC 12V DC 201.6V Auxiliary Battery

  23. Inverter Assembly • DC – DC Converter • Operation DC – DC Converter DC 201.6V DC 12V Rectifier Diode Smoothing Circuit Transformer DC  AC Auxiliary Battery

  24. Inverter Assembly • A/C inverter • DC201.6V  AC201.6V conversion A/C ECU DC 201.6V  AC 201.6V HV ECU Target Compressor Speed AC 201.6V A/C Inverter DC 201.6V HV Battery Electric Inverter Compressor Inverter Assembly

  25. Reservoir Pump MG1 / 2 Radiator Inverter Inverter Assembly • Cooling System • Cooling circuit is used for inverter assembly • Separate cooling system from engine Reservoir Tank Electric Water Pump Radiator

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