Nissan Altima HL32 Hybrid. Manual - part 541
INVERTER ASSEMBLY CONTROL
HBB-21
< FUNCTION DIAGNOSIS >
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INVERTER ASSEMBLY CONTROL
System Diagram
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System Description
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GENERAL
• The inverter converts the direct current from the HV battery into an alternating current for MG1 and MG2, or
vice versa, in accordance with the signals provided by the hybrid vehicle control ECU via the MG ECU. In
addition, the inverter supplies the alternating current from the MG1 power to the alternating current for MG2.
However, the electricity that is supplied by MG1 to MG2 is converted into DC inside the inverter.
• Via the MG ECU, the hybrid vehicle control ECU transmits a signal to the power transistor in the inverter for
switching the U, V, and W phases of stator coil of MG1 and MG2 based on the rotor position information sent
by MG1 and MG2, and the SOC of the HV battery sent by the battery smart unit.
• When the shift lever is in the N position, or the hybrid vehicle control ECU has received an over-heating,
over-current, or fault voltage signal from the inverter, the hybrid vehicle control ECU transmits a shut down
control signal to the inverter, in order to disengage the electrical connection to MG1 and MG2.
(1) VOLTAGE BOOST CONVERSION FUNCTION
(2) VOLTAGE DROP CONVERSION FUNCTION
JMCIA0073GB
JMCIA0074GB
JMCIA0075GB