System Description

SYSTEM

Infiniti Drive Mode Selector : System Description


System Diagram






NOTE:
- This section provides descriptions only about the control by ECM.
For overall control, Infiniti Drive Mode Selector.
- 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 ECM via CAN communication, based on a ECO mode signal received from the A/C auto amp.
- ECM controls throttle angle characteristics and torque appropriate to each mode, based on a ECO mode signal received from TCM via CAN communication.
- The combination meter turns ON or blinks (with ECO pedal) the ECO drive indicator when in ECO mode, based on a ECO drive indicator control signal received from ECM via CAN communication.
ECO pedal control
- The AV control unit transmits an ECO pedal reaction force setting signal (Standard/Soft/OFF) to ECM via
CAN communication.
NOTE:
An 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.
- ECM transmits an ECO pedal reaction force control signal to the 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 the AV control unit via CAN communication.
- ECM sends back an ECO pedal reaction force setting signal received from the AV control unit to the AV control unit for confirmation.
- The ADAS control unit controls pedal reaction force of the accelerator pedal actuator via ITS communication, based on an ECO pedal reaction force control signal received from the ADAS control unit.

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 a high engine performance range and increases driving performance.
- ECO : Changing throttle angle characteristics and controlling torque, ECO drive indicator , and ECO pedal enhance fuel economy in 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 under the following conditions.
- Intelligent cruise control in operation.
- Selector lever is in R range.
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 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 the following conditions.
- Intelligent cruise control is in operation.
- Accelerator pedal is depressed quickly.
- Selector lever is in N or R range.