DTC P0D2D-16: Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Below Threshold; DTC P0D2D-17: Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Voltage Above Threshold; DTC P0D2D-1F: Drive Motor "A" Inverter Voltage Sensor (VH) Circuit Intermittent [12/2019 - 11/2023]: Description

The inverter contains a three-phase bridge circuit, which consists of 6 power transistors (IGBTs) each for the generator (MG1) and rear motor (MGR), and 12 power transistors (IGBTs) for the motor (MG2). The inverter converts high-voltage direct current from the HV battery into three-phase alternating current for the generator (MG1), motor (MG2) and rear motor (MGR); it also converts three-phase alternating current supplied by generator (MG1), motor (MG2) and rear motor (MGR) into direct current for the HV battery. The motor generator control ECU (MG ECU) controls the actuation of the power transistors (IGBTs). The inverter transmits information necessary for control, such as amperage and voltage, to the motor generator control ECU (MG ECU).

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The motor generator control ECU (MG ECU) uses an inverter voltage sensor, which is built into the inverter, to detect boosted high voltage (VH) and allow control of the voltage boost.

The inverter voltage sensor outputs voltage that fluctuates between 0 to 5 V according to changes in VH.

The motor generator ECU monitors the inverter voltage sensor and detects the following malfunctions.