Test-AC

Eco/Green Driving

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When vehicle parameters exceed the values of Max Acceleration, Max Braking or Max Cornering parameters, the scenario is activated: a record is generated. You can configure all three parameters in m/s² units. The scenario is activated until the current Acceleration, Braking, or Cornering value decreases below the set parameter value.
Parameters used with Eco/Green Driving functionality are given in a table below.

GPS Source

When selected source is GPS device calculates harsh driving values from GPS data at 1 Hz frequency. This means green driving time accuracy is 1s. Acceleration is calculated every 1 second, based on speed difference between GPS samples.

• Vehicle speed must be equal or greater than 10 km/h for acceleration/braking.
• Vehicle speed must be equal or greater than 30 km/h for cornering.

While using Green driving (GPS) harsh cornering is determined by calculating an angle difference and the speed change in m/s between two NMEA coordinates. This leads to calculation and approximation of angular speed of the vehicle in m/s. It is recommended to use accelerometer data to measure harsh driving as GPS source is less accurate.

While Green Driving event is active, two records will be created every second - Event Type and Event Duration.

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Parameter name	Description
Scenario Settings	Enable/Disable Green driving functionality
Max Acceleration	Value which can be reached while accelerating without triggering harsh acceleration event.
Max Braking Acceleration	Value which can be reached while braking without triggering harsh braking event.
Max Cornering Acceleration	Value which can be reached while cornering without triggering harsh cornering event.
Source	Which source (GPS or accelerometer) data will be collected from.
[[{{{model}}} Features settings#Advanced Eco Driving|Advanced Eco Driving]]	When this parameter is enabled device uses an advanced Eco Driving algorithm and sends different IO (maximum, average) elements instead of IO to server. More details about this option is decribed below.
Eco/Green Driving Duration	If enabled, additional record with Eco/Green Driving event duration (ms) will be saved and send to server. When GPS is selected as the data source duration accuracy will be in seconds.
Output Control	Which Digital Output will be used for accesory (buzzer, LED and etc.) activation/deactivation.
Send SMS to	GSM number of receiver which will get notifications of Eco/Green Driving feature.
SMS Text	SMS text, which the receiver will get.

Simple Eco Driving

For simple eco driving vehicle speed must be equal or greater than 10 km/h for acceleration/braking and equal or greater than 30 km/h for cornering.

Noise filter is used to filter out small accelerometer spikes in cases when vehicle is not harsh driving, but drove over a speed bump or a hole.

Noise filter acceptance value is 50%, which means the shortest harsh driving event must last at least 500 ms. This filter generates only one record if harsh driving lasts longer than 1 second.

Advanced Eco Driving

Harsh driving event is detected when acceleration on a specific axis is above the configured threshold for the defined duration. Then, when acceleration on specific axis falls below the threshold for defined „event end duration, an eventual record is made as configured and an SMS message is sent(if configured).

Note: For eco driving with accelerometer to work, auto calibration must not be empty (default or calibrated) and ignition must be on.

The advanced eco driving does not have the green driving value I/O element (AVL ID 254). It is substituted with eco driving average, maximum and duration values.

Parameter name	Description
Eco Driving Average	If Eco/Green driving is enabled and accelerometer is selected as the data source, enabling Eco Driving Average will cause records with Eco Driving event Average value to be saved and send to the server.
Eco Driving Maximum	If Eco/Green driving is enabled and accelerometer is selected as the data source, enabling Eco Driving Maximum will cause records with Eco Driving event Maximum value to be saved and send to the server.