Infiniti Drive Mode Selector System Description

SYSTEM

INFINITI DRIVE MODE SELECTOR : System Description


SYSTEM DIAGRAM






NOTE:
- This section provides description only about the control by HPCM.
For overall control, Description.
- ECO pedal control is only for vehicles with intelligent pedal (distance control assist).
Infiniti Drive Mode Selector
- A/C auto amp. receives an operation state signal of the drive mode select switch and transmits a mode signal (see below) to TCM via CAN communication.
- STANDARD: ON/OFF
- SPORT: ON/OFF
- ECO: ON/OFF
- SNOW: ON/OFF
- TCM transmits a mode state signal to HPCM via CAN communication, based on a ECO mode signal received from A/C auto amp.
- HPCM controls torque appropriate to each mode, based on a ECO mode signal received from TCM via CAN
communication.
- ECM controls the throttle position characteristics and controls engine output torque, based on the command signal from HPCM.
- Traction motor inverter controls the traction motor output torque, based on a command signal from HPCM.
- When ECO mode is engaged, the ECO mode indicator lamp is turned ON or blinks based on the ECO mode indicator lamp signal received by CAN communication from HPCM.
ECO Pedal Control
- AV control unit transmits the ECO pedal reaction force setting signal (Standard/Soft/OFF) to HPCM via CAN
communication.
NOTE:
The ECO pedal reaction force setting signal which determines reaction force of the accelerator pedal can be selected on the settings screen of the Multi AV System.
- HPCM transmits the ECO pedal reaction force control signal to ADAS control unit via CAN communication, based on a ECO mode signal received from TCM via CAN communication and an ECO pedal reaction force setting signal received from AV control unit via CAN communication.
- HPCM sends back an ECO pedal reaction force setting signal received from the AV control unit to the AV
control unit for confirmation.
- ADAS control unit controls pedal reaction force of the accelerator pedal actuator via ITS communication, based on a ECO pedal reaction force control signal received from HPCM.

CONTROL

- With the drive mode selector, a drive mode select switch installed at the top of the center console switches a vehicle drive mode, changes throttle angle characteristics, and controls torque and ECO pedal.
- vehicle characteristics are controlled in the following modes, on the basis of STANDARD mode ("" position of the drive mode select switch).
- SPORT: Changing throttle angle characteristics allows to use the high range of dynamic performance and increases driving performance.
- ECO: Changing throttle angle characteristics and controlling torque, ECO drive indicator lamp, and ECO
pedal enhance fuel economy in a actual traffic.
- SNOW: Changing throttle angle characteristics enhances driving performance on roads with a low coefficient of friction.





ECO Drive Indicator Control
- ECO drive indicator turns ON or blinks (with ECO pedal) when in ECO mode, according to the operation of the accelerator pedal.
- For vehicles with ECO pedal, the blinking timing of the ECO drive indicator (green) synchronizes to the generation timing of ECO pedal reaction force.










NOTE:
ECO drive indicator turns OFF as per the following condition.
- Intelligent cruise control is operation.
- Selector lever is in R position.
ECO Pedal Control
- Increasing reaction force of the accelerator pedal supports ECO driving in accordance with the accelerator pedal operation when in ECO mode.
- The level of reaction force to the accelerator pedal reaction force can be changed among Standard/Soft/OFF
on the navigation screen. ECO pedal reaction force can be turned OFF even when in ECO mode.
- The generation timing of ECO pedal reaction force synchronizes to the blinking timing of the ECO drive indicator (Green).





NOTE:
- When switching from ECO mode to the other mode by operating the drive mode select switch, ECO pedal reaction force is generated in common with ECO mode until the accelerator pedal is released.
- ECO pedal reaction force is not generated under either of the conditions below.
- Intelligent cruise control is operation.
- Accelerator pedal is depressed quickly.
- Select lever is in N or R position.
Acceleration Guide
When in ECO mode, the amount of accelerator pedal depression where ECO pedal control generates reaction force is displayed on the information display in the combination meter, allowing the driver to check the accelerator pedal operation in the ECO driving range.