Page 27 - i-MeIV Product Information

Total vehicle management

5-3 MiEV OS: Fail safe system
In order to achieve the safety and reliability, fail safe system is applied. All malfunction and/or abnormal conditions are
reported to the EV-ECU and fail sale system is activated if it is necessary.

[4] Judgment of Fail safe[Store DTC]
EV-ECU

[5] Fail safe execution

[3] Report malfunction
MCU OBC A/C & Meter
Inverter BMU Heater

[2] Detect malfanction

Motor [1] Malfanction exist

Electric leak Current
sensor sensor

Li-ion battery Li-ion battery Li-ion battery

5-4 MiEV OS: DC 330V battery monitoring system
It is consisted by BMU, CMU, Electric leak sensor and Current sensor.
Each cell of the DC 330V battery is monitored by them.
Electric leak between the high voltage circuit line and the body is monitored also for the safety purpose.

Battery info.

BMU Current value

Electric leak sensor

Battery info.
-Voltage
-Temperature
Electric leak Current
sensor sensor

Li-ion battery Li-ion battery Li-ion battery

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