**Variable Description** 

trucknum Truck number

config Trailer configuration: 1 = Phase 1 trailer (40 CFR 1037.501) 2 = Phase 1 trailer with trailer skirt 3 = Phase 1 trailer with trailer skirt and trailer tail run Run number

direction Direction of travel: 1 = East -1 = West coasttime_s Time since start of run vehspeed_mph Vehicle speed airspeed_mph Air speed, measured from onboard anemometer airdirection_deg Yaw angle of attack of air, measured from onboard anemometer airelevation_deg Pitch angle of attack of air, measured from onboard anemoemeter windspeedstat_mphWind speed, measured from stationary road side weather station

winddirectionstat_degWind direction, measured from stationary road side weather station ambtempstat_F Ambient temperature, measured from stationary road side weather station ambpressstat_inHg Ambient air pressure, measured from stationary road side weather station weight_lb Vehicle weight grade_SwRI Road grade, taken from survey conducted by Southwest Research Institute grade_USGS Road grade, data from USGS National Elevation Dataset, filtered by NREL**Units**

N/A

N/A N/A

N/A sec mph mph degrees, relative to centerline of vehicle degrees, relative to horizontal plane mph degrees 0° = wind from the west, 90° = wind from the north, and so on

°F in Hg lb [], multiply by 100 to get percent grade [], multiply by 100 to get percent grade**Variable Description** 

trucknum Truck number

config Trailer configuration: 1 = Phase 1 trailer (40 CFR 1037.501) 2 = Phase 1 trailer with trailer skirt 3 = Phase 1 trailer with trailer skirt and trailer tail testnum Test number;nth repeat of truck-configuration test run Run number

direction Direction of travel: 1 = East -1 = West nominalspeed_mph Nominal target speed time Time of day vehspeed_mph Vehicle speed airspeed_mph Air speed, measured from onboard anemometer airdirection_deg Yaw angle of attack of air, measured from onboard anemometer airelevation_deg Pitch angle of attack of air, measured from onboard anemoemeter engspeed_rpm Engine speed LFspeed_rpm Left front drive wheel speed RFspeed_rpm Right front drive wheel speed LRspeed_rpm Left rear drive wheel speed RRspeed_rpm Right rear drive wheel speed shafttorque_Nm Transmission output driveshaft torque LFtorque_lbft Left front drive wheel torque RFtorque_lbft Right front drive wheel torque LRtorque_lbft Left rear drive wheel torque RRtorque_lbft Right rear drive wheel torque transgearratio Transmission gear ratio axleratio Drive axle ratio windspeedstat_mphWind speed, measured from stationary road side weather station

winddirectionstat_degWind direction, measured from stationary road side weather station ambtempstat_F Ambient temperature, measured from stationary road side weather station ambpressstat_inHg Ambient air pressure, measured from stationary road side weather station weight_lb Vehicle weight grade_SwRI Road grade, taken from survey conducted by Southwest Research Institute grade_USGS Road grade, data from USGS National Elevation Dataset, filtered by NREL**Units**

N/A

N/A N/A N/A

N/A mph sec mph mph degrees, relative to centerline of vehicle degrees, relative to horizontal plane rpm rpm rpm rpm rpm N-m lb-ft lb-ft lb-ft lb-ft [] [] mph degrees 0° = wind from the west, 90° = wind from the north, and so on

°F in Hg lb [], multiply by 100 to get percent grade [], multiply by 100 to get percent grade