Nissan Altima HL32 Hybrid. Manual — part 541
INVERTER ASSEMBLY CONTROL
HBB-21
< FUNCTION DIAGNOSIS >
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H
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INVERTER ASSEMBLY CONTROL
System Diagram
INFOID:0000000004212240
System Description
INFOID:0000000004212241
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
HBB-22
< FUNCTION DIAGNOSIS >
INVERTER ASSEMBLY CONTROL
(3) ELECTRICAL POWER SUPPLY FUNCTION
JMCIA0076GB
INVERTER ASSEMBLY CONTROL
HBB-23
< FUNCTION DIAGNOSIS >
D
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Component Parts Location
INFOID:0000000004212242
1.
Combination meter
2.
HV battery cooling fan
3.
HV battery pack
4.
HV battery cooling fan relay
5.
Hybrid vehicle control ECU
(located under heater box assembly)
ALCIA0003ZZ
HBB-24
< FUNCTION DIAGNOSIS >
INVERTER ASSEMBLY CONTROL
1.
Service plug grip
2.
Battery temperature sensor 0
3.
Battery smart unit
4.
SMRG
5.
SMRB
6.
Battery current sensor
7.
Hybrid vehicle converter
8.
Battery temperature sensor 3
9.
Intake air temperature sensor
10. Battery temperature sensor 2
11. Battery temperature sensor 1
ALCIA0004ZZ
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