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Hybrid System Output Control

WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.

To control the drive force, HPCM detects the vehicle conditions based on information from the sensors and control modules, and controls the engine and traction motor.

HPCM judges the driving conditions based on the throttle position, vehicle speed, selector lever position, and other signals, and calculates the target drive force for those conditions. Based on the calculated target drive force and the status of each system, it distributes the required output between the engine and traction motor, and transmits the command signals to each control module. When each control module receives the signal, it performs control based on the command signal from the HPCM.

NOTE: The status of each system control can be checked from "Energy monitor" on either the "Navigation display" or combination meter "Information Display". Refer to "INFORMATION DISPLAY: SYSTEM DESCRIPTION " or "MULTI AV SYSTEM: SYSTEM DESCRIPTION ".
FUNCTIONS OF PRIMARY CONTROL MODULES

Control module Description Reference
ECM
  • Transmits engine status to HPCM via CAN communication.
  • Performs engine start, stop, and other engine controls based on commands from HPCM.
  • Outputs engine torque based on commands from HPCM.
Traction motor inverter
  • Transmits traction motor status to HPCM via CAN communication.
  • Controls traction motor power generation or output based on commands from HPCM.
TCM
  • Transmits transmission status to HPCM via CAN communication.
  • Activates clutch 1, clutch 2, and sub electric oil pump based on commands from HPCM.
  • Performs shift change control according to the vehicle driving conditions.
Li-ion battery controller Transmits Li-ion battery status to HPCM via CAN communication.
  • Hybrid battery system SYSTEM
Electrically-driven intelligent brake unit
  • Transmits brake operating status to HPCM via CAN communication.
  • Performs cooperative regenerative braking control together with HPCM.
Combination meter Receives request signals transmitted by CAN communication from HPCM, and activates the indicator lamps on the combination meter and displays vehicle condition in the information display.
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