Fuel And Emissions System Description - Driver Feedback System
Fuel and Emissions System Description - Driver Feedback System
Driver Feedback System
The driver feedback system provides real-time driving information, and gives drivers an interactive way to practice fuel-efficient driving. The driver feedback system includes two visual aids on the instrument panel: an ambient meter and an Eco guide.
Ambient Meter
Eco Guide
The Eco guide is one of the screens in the multi-information display (MID). It rewards continuous improvement in fuel economy by "growing" five plant icons, one leaf at a time, based on fuel-efficient driving. The Eco guide has three progressively difficult Eco stages: The first stage can grow two leaves on each of the five plants; the second stage can grow four leaves on each plant; the third stage can grow a blossom on each plant.
In addition, an Eco drive bar at the bottom of the Eco guide gives the driver real-time fuel economy information. A longer bar indicates lower fuel economy, and a shorter bar indicates higher fuel economy.
The ECM/PCM adds data to the Eco guide by forming an Eco drive profile. The ECM/PCM sends the Eco drive profile to the gauge control module via F-CAN. When the gauge control module receives the Eco drive profile data, it responds by adding the data to the Eco guide.
Eco Drive Profile
The Eco drive profile contains information the ECM/PCM receives from control units and sensors monitoring driving habits. The profile consists of several rating components, including real-time driving information, the Eco score, the lifetime points, the Eco stages, and the Eco driving record.
Real-Time Driving Information
Real-time driving information includes the driver's acceleration and braking habits, viewed from a fuel economy standpoint. Based on information received, the ambient meter changes color:
During low fuel economy, the ambient meter is blue; at medium fuel economy, the meter is blue-green; and at high fuel economy, it's green. In addition, the Eco drive bar on the MID changes from a long bar (during low fuel economy driving) to a short bar (during high fuel economy driving).
Eco Score
The Eco score is a fuel economy average calculated from real-time driving information, idle time evaluation, and the percentage of time the ECON button is on. The Eco score determines how many points (parts of the plant icon) are awarded on the Eco guide. Calculation of the Eco score begins when the ignition switch is turned to ON (II), and continues while the ignition switch is in ON (II). The Eco score begins to display on the Eco guide after 3 minutes of engine idling or 200 meters of driving. The calculation logic changes for each Eco stage, making it progressively harder to score points.
Lifetime Points
This is the accumulated point total for the lifetime of the vehicle. Lifetime points are used to determine which Eco stage has been achieved by the driver. Lifetime points are not deleted when the vehicle's 12 V battery is disconnected, after resetting the ECM/PCM, or after an ECM/PCM update. The lifetime points can be reset Service and Repair.
Eco Stages
These are the three stages that can be reached on the Eco guide by accumulating lifetime points. The first stage can grow two leaves on each of the five plant icons; the second stage can grow four leaves on each plant icon; the third stage can grow a blossom on each plant icon. Each stage is progressively more difficult to reach.
Eco Driving Record
When the ignition switch is turned to LOCK (0) after a drive, the driving record for the drive is stored in the ECM/PCM. Up to five of the most recent driving records can be stored. An Eco driving record is not stored after a short time drive or if the vehicle does not reach a certain speed. Eco driving records are deleted when the vehicle's 12 volt battery is disconnected, after resetting the ECM/PCM, or after an ECM/PCM update.