Page 14 - i-MeIV Product Information

EV System

2-3-1 MCU [Motor Control Unit]
MCU has integrated inverter to convert DC 330 V at the battery pack to AC 330 V for the three-phase motor.

To:
-On Board charger
-DC / DC converter
Smoothing
capacitor
MCU Three -
phase
lines
Battery Current flow U phase
sensor
Pack Inverter V phase Motor coil
[DC 330V] Current flow W phase
sensor
Temperature Three Temperature sensors
Discharge sensor [ for U / V / W phases ]
circuit
Smoothing Control IC for Resolver
EV-ECU capacitor circuit Digital convert [Rev.sensor]

Item Specification
Basic Function Control the motor speed , power and regeneration.
[PWM:(Pulse Width Modulation) control]
Control element type IGBT: insulated gate bipolar transistor
Operating power range 230 - 400 V
Max. Alternating current 350 A rms *
Network system CAN-C(Main), K-Line(Back-up)
Cooling system Water cooled

Size W286 x D309 x H169(Excl. minor protrusions)
[rms :] root-mean-square= effective value

A rms=
: Maximum current value
: Effective current value

2-3-2 DC->AC Inverter :Principle
PWM [Pulse Width Modulation] control has been employed to output the Pseudo-exchange sine wave of the voltage.

I I [ V ] : Voltage wave pattern from

V Coil V the inverter to the motor

[ I ]: Current wave pattern from
V the inverter to the motor

I

Voltage and Current output under coil inductance

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