Dataset of paper "Real Driving Emissions—Event Detection for Efficient Emission Calibration"

This dataset includes signal traces and resulting data used in the publication "Real Driving Emissions—Event Detection for Efficient Emission Calibration", MDPI Gases, 2024 (doi: 10.3390/gases4030010).

The time trace data is available in a frequency of 1 Hz.

The general vehicle specifications are listed below. For further information please refer to the paper.

Criteria

Value

Criteria

Value

Vehicle mass

> 2000 kg

Drivetrain

All-wheel drive (AWD)

Engine

Inline 4 cylinder

Gearbox

Automatic Transmission (AT)

Max. power

> 180 kW

EATS

Three-way catalytic converter (TWC) and Gasoline particulate filter (GPF)

Max. torque

> 300 Nm

Fuel

Gasoline

Description of files:

Data_Measurement_NOx_Events_HistoryInfluence: Profile of examplary cycle in 1 Hz with time [s], speed [km/h], NOx mass flow [g/s], downstream lambda sensor voltage (U_HEGO) [V], flag fuel cut-off (b_fco) [-], distance specific NOx intensity for window layout (20 %, 50 % and 80 % History) [g/km], flag for critical window intensity (b_SE for 20 %, 50 % and 80 % history) [-]. (Refers to figure 9 and 10)

Data_NOx_RelativePositionOfEmissionIntensityPeak: Map of relative position of NOx intensity peak within the detected event based on the window layout. The position is displayed over the Window Duration [s] in rows and the History Share [%] in columns. (Refers to figure 8)

Data_PN_RelativePositionOfEmissionIntensityPeak: Map of relative position of PN intensity peak within the detected event based on the window layout. The position is displayed over the Window Duration [s] in rows and the History Share [%] in columns. (Refers to figure 7)

Data_NOx_WindowDuration_NumberEvents_AverageDuration_20percHistory: Overview of statistics for number of detected events in an examplary cycle and average duration of these events for different window durations and a window layout that considers 20 % history for NOx emissions. (Refers to figure 6)

Data_PN_WindowDuration_NumberEvents_AverageDuration_20percHistory: Overview of statistics for number of detected events in an examplary cycle and average duration of these events for different window durations and a window layout that considers 20 % history for PN emissions. (Refers to figure 5)

Data_Threshold_Statistics_NOx: Data for statistical evaluation of the threshold impact for event detection for the NOx emissions. The data are binned at a step size of 0.0001 g/km from 0 to 0.06 g/km (Threshold). For these bins, the detectable share of samples (relative) is listed for only urban samples, rural samples, motorway samples and total number of samples. (Refers to figure 4)

Data_Threshold_Window_Speed_Distance_Intensity_NOx: Data for threshold analysis. Contains the information of the analysis windows for each measurement sample that show a distance of > 0.002 km. For each window, the average window speed [km/h], the travelled window distance [km] the distance specific NOx emissions [g/km] and the integrated NOx emissions within this window [g] are displayed. (Refers to figure 3)

Overview_FinalEvent_Duration: Contains a list with the number of events and the duration of the events for the final event detection results with the named threshold values

Overview_FinalEvent_Profiles: Contains a list with the explicit data of the final event set. The time based data are displayed in a 1 Hz frequency over rows. The first column names the ID of the event, then the time in the cycle [s], the vehicle speed [km/h], the flag fuel cut-off (b_fco) [-], the downstream lambda sensor voltage (U_HEGO) [V], the Lambda value [-] and the NOx mass flow [g/s] are displayed.