This document summarizes the process which utilized EPA's laboratory engine and chassis dynamometer test data to generate a full engine fuel consumption map for the Mazda 2.5L Skyactiv-G engine with cylinder deactivation from a 2018 Mazda 6 tested on Tier 3 fuel. The generated full engine map defines the complete operating boundaries of the engine which are needed for ALPHA modeling including idle, WOT, minimum torque, and maximum speed.
SUGGESTED CITATION:
2018 Mazda 2.5L Skyactiv-G Engine Tier 3 Fuel - ALPHA Map Package. Version 2023-08. Ann Arbor MI: US EPA National Vehicle and Fuel Emissions Laboratory, National Center for Advanced Technology, 2023.
Engine Physical Characteristics
Set physical characteristics based on published information "2018 Mazda 6 Specifications", last accessed May 15, 2023, from https://www.mazdausa.com/siteassets/pdf/features--specs/2018/mzd6/2018_mazda6_features_specs.pdf.
engine = [];
engine.name = '2018 Mazda 2.5L Skyactiv-G Engine Tier 3 Fuel';
engine.combustion_type = enum_engine_combustion_type.spark_ignition;
engine.displacement_L = 2.488;
engine.num_cylinders = 4;
engine.compression_ratio = 13;
enigne.bore_mm = 89;
engine.stroke_mm = 100;
Test Data
Import EPA engine dynamameter test data from "2018 Mazda 2.5L Skyactiv-G Engine Tier 3 Fuel - Test Data Package. Version 2023-08. Ann Arbor, MI: US EPA, National Vehicle and Fuel Emissions Laboratory, National Center for Advanced Technology, 2023." EPA reviews the quality of the test data we import to ensure consistency with expected data trends and emotor system physics. Any data points considered significant outliers are removed from the dataset before generating the final efficiency map. In addition, since many of the datasets are missing low-speed and torque datapoints, occasionally a few “grounding” datapoints are added to help the curve fitting algorithm extrapolate the gradients near the map’s boundaries. The available test data package includes engine test data both with and without cylinder deactivation enabled.
test_data = readtable('4- 2018 Mazda 2.5L Skyactiv-G Engine Tier 3 Fuel - Test Data.xlsx','Sheet','Steady State','VariableNamesRange','A4','VariableUnitsRange','A5','DataRange','A6'); % Split into sets where CDA active / Inactive deac_active = test_data.CylinderDeac == 1; ss_test_data.name = 'SS Test Data'; ss_test_data.speed_rpm = test_data.Speed(~deac_active); ss_test_data.torque_Nm = test_data.Torque(~deac_active); ss_test_data.fuel_gps = test_data.FuelMeterFlow(~deac_active); ss_test_data.manifold_press_kPaA = test_data.IntakeManifoldPress(~deac_active); deac_ss_test_data.name = 'SS Test Data'; deac_ss_test_data.speed_rpm = test_data.Speed(deac_active); deac_ss_test_data.torque_Nm = test_data.Torque(deac_active); deac_ss_test_data.fuel_gps = test_data.FuelMeterFlow(deac_active); deac_ss_test_data.manifold_press_kPaA = test_data.IntakeManifoldPress(deac_active);
Maximum Torque (WOT) Curve Data
Add published maximum torque data to supplement the Test Data described above.
wot_data.speed_rpm = [ 4000; 6000]; wot_data.torque_Nm = [186 * unit_convert.ftlbs2Nm; 187 * unit_convert.hp2kW * 1000 / (6000 * unit_convert.rpm2radps)];
Minimum Torque (Zero Accelerator Pedal) Curve Data
The minimum torque data is selected from the data in 4- 2018 Mazda 2.5L Skyactiv-G Engine Tier 3 Fuel - Test Data File.xlsx provided in the Engine Test Data package referenced above.
Fuel Properties
Load fuel properties specified in the Fuel Analysis Report provided in the Engine Test Data package referenced above.
engine.fuel = class_REVS_fuel('FTAG 28637');
disp(engine.fuel)
class_REVS_fuel with properties:
id: 'FTAG 28637'
description: 'Tier 3 Cert'
density_kgpL_15C: 0.7490
energy_density_MJpkg: 41.6210
carbon_weight_fraction: 0.8253
anti_knock_index: 87.8000
research_octane_number: 92
motor_octane_number: 83.7000
alcohol_pct_vol: 9.6000
gCO2pgal: 8.5739e+03
energy_density_BTUplbm: 1.7894e+04
specific_gravity: 0.7497
Idle Speed
Set estimated idle speed using EPA chassis dynamometer test data from " 2018 Mazda6 Sport Vehicle Tier 3 Fuel – Test Data Package. Version 2020-11. Ann Arbor, MI: US EPA, National Vehicle and Fuel Emissions Laboratory, National Center for Advanced Technology, 2020."
engine.idle_target_speed_radps = 580 * unit_convert.rpm2radps ;
Engine Build for Simulation in ALPHA
Construct simulation input for the engine, combining the above inputs. Fit the fueling data onto a grid for simple interpolation and establish points that represent the maximum and minimum engine torque versus speed. Confirm the quality of fit between the input data and the resulting engine description by examining the resulting plots. To cover the full cylinder deactivation region, the cylinder deactivation operation region is expanded slightly from the discrete cylinder deactivation data available.
engine = REVS_build_engine(engine, {ss_test_data},'WOT', wot_data,'deac',{deac_ss_test_data},'plot_bsfc','plot_efficiency','torque_alpha',0.165);
Idle Fuel Verification
Confirm appropriate fuel consumption near idle conditions.
REVS_check_idle_fuel(engine);
Estimated idle fuel consumption @ 580 RPM & 24.5 Nm: 0.181 g/sec => Indicated Efficiency: 38.5% Warning: Idle fuel consumption is below expected range [0.199 - 0.258]
Fuel Map Linearity
Confirm expected trends in output fuel map, specifically in regions where test data are unavailable.
REVS_plot_engine_fuel_linearity(engine);
Model Calibration Options
Calibrate additional properties of the REVS engine model which can be set to match observed behaviors during the validation process.
Note: Default values are used unless properties are specifie dbelow, which are derived from the composite set of EPA testing and model validation activities.
File Description
Generate and write the created ALPHA engine definition into a file for use in later simulations.
engine.write_mscript( 'engine_2018_Mazda_2L5_SkyactivG_Tier3.m', engine);
Engine Build: engine_2018_Mazda_2L5_SkyactivG_Tier3.m
% ALPHA ENGINE DEFINITION % Generated 18-Aug-2023 07:51:40 % Constructor engine = class_REVS_engine(); engine.name = '2018 Mazda 2.5L Skyactiv-G Engine Tier 3 Fuel'; engine.source_filename = mfilename; engine.matrix_vintage = enum_matrix_vintage.present; % Physical Description engine.displacement_L = 2.488; engine.num_cylinders = 4; engine.combustion_type = enum_engine_combustion_type.spark_ignition; engine.compression_ratio = 13; engine.stroke_mm = 100; % Maximum Torque Curve engine.full_throttle_speed_radps = [ 0.0000000000000000 ; 104.40559585430078 ; 156.76547341413067 ; 209.02063121884089 ; 339.81560536329596 ; 418.87902047863906 ; 628.31853071795865 ; 659.73445725385659 ; 691.15038378975453 ]; engine.full_throttle_torque_Nm = [ 0.0000000000000000 ; 166.40000000000001 ; 201.00000000000000 ; 219.09999999999999 ; 237.19999999999999 ; 252.18214799999998 ; 221.93501302700693 ; 190.23001116600594 ; 0.0000000000000000 ]; engine.naturally_aspirated_speed_radps = [ 0.0000000000000000 ; 133.54955900738526 ; 235.20056999875584 ; 261.37201798771514 ; 287.45572780346617 ; 313.63412658698218 ; 365.88854787167566 ; 418.25070194792107 ; 470.55447963893687 ; 691.15038378975453 ]; engine.naturally_aspirated_torque_Nm = [ 101.16679563487645 ; 152.75147594211896 ; 199.65532860476341 ; 204.81943397831103 ; 205.98007540514214 ; 213.63290215662423 ; 242.91535897439786 ; 265.59776331078376 ; 309.23320656669739 ; 530.57983062165079 ]; % Minimum Torque Curve engine.closed_throttle_speed_radps = [ 0.0000000000000000 ; 114.98229112138642 ; 235.20056999875584 ; 313.63566658338101 ; 522.86573731246119 ; 691.15038378975453 ]; engine.closed_throttle_torque_Nm = [ -20.041822849807446 ; -26.300000000000001 ; -30.699999999999999 ; -32.299999999999997 ; -48.500000000000000 ; -57.659281129653401 ]; % Fuel Map engine.fuel_map_speed_radps = [ 0.0000000000000000 ; 52.249921816954256 ; 104.49984363390851 ; 114.96265616730150 ; 133.54955900738526 ; 156.76855340692828 ; 182.94541219404559 ; 209.02204635066693 ; 235.20056999875584 ; 261.37201798771514 ; 287.45572780346617 ; 313.63412658698218 ; 339.80449872260135 ; 365.88854787167566 ; 418.25070194792107 ; 470.55447963893687 ; 522.85825732995261 ; 607.00432055985357 ; 691.15038378975453 ]; engine.fuel_map_torque_Nm = [ -60.542245186136071 ; -48.149999999999999 ; -30.586764705882352 ; -14.100000000000000 ; -1.9485915492957753 ; 12.901666666666667 ; 23.372222222222220 ; 29.085714285714285 ; 36.721052631578949 ; 43.310000000000002 ; 50.715909090909093 ; 63.681481481481484 ; 74.104999999999990 ; 82.481249999999989 ; 94.012499999999989 ; 100.09999999999999 ; 112.67500000000001 ; 122.20624999999998 ; 131.73749999999995 ; 142.54999999999998 ; 158.92000000000002 ; 168.41217391304349 ; 177.90434782608696 ; 187.38000000000000 ; 200.08571428571429 ; 215.34999999999999 ; 228.26250000000005 ; 241.00000000000000 ; 252.89562770000001 ; 264.79125540000001 ]; engine.fuel_map_gps = [ -0.057912696810097156 -0.22371937319975380 -0.34457915699163849 -0.35757820086091568 -0.38014266986863110 -0.40672889884951779 -0.43362582068440442 -0.45619431485165618 -0.47381042232271564 -0.48579761370357033 -0.49205132870470741 -0.49294829055445505 -0.48898228428081308 -0.48072491600788009 -0.44673630598220349 -0.38821650498364713 -0.31993840443457461 -0.22585928895262658 -0.14080275169672785 ; -0.037762944610459467 -0.16508800552417058 -0.21845901420337768 -0.22563724425444340 -0.23773297571984819 -0.25114622070004661 -0.26381135583259752 -0.27381640265870016 -0.28095652805236832 -0.28421124162095607 -0.28194136764843514 -0.27238808749474147 -0.25504696785550940 -0.23219326875412452 -0.18323658172469715 -0.098618280181358250 0.0015859499851049756 0.14131439446054644 0.28027235071342860 ; -0.011876375841951283 -0.034008635369004364 -0.039712975833768573 -0.039503838868974808 -0.037713545814552565 -0.032183548590974997 -0.023167927461467029 -0.011641544004347311 -0.00051064639562179879 0.0084518568554424068 0.018871815693675662 0.040138103051140246 0.075445413360155394 0.11910472292933452 0.19841539064449551 0.31253936413535760 0.44381394930371260 0.66256627366124765 0.87836633473326753 ; 0.0070927428252963807 0.078850737172453403 0.14348753251715254 0.14655463942940383 0.15191613695914619 0.16502357647771823 0.19161272876377952 0.22696275185554735 0.26528424351503838 0.30349814214211351 0.33578402625952658 0.36762791875246209 0.40436604094761769 0.44708183681877967 0.55809165626702462 0.70620507277762312 0.87519658924534605 1.1622114898377749 1.4438484625922965 ; 0.021395141173626338 0.10827511220811295 0.18231481772138258 0.19826708353660916 0.22734484749867173 0.26534622377709532 0.31291342090659285 0.36375003038439635 0.41644219400937038 0.47005674734145719 0.52016319170193137 0.56997125121085024 0.62222009698956693 0.67764057981544268 0.81782347281264067 1.0009907768563198 1.2062796827104660 1.5382768555845541 1.8643028344484383 ; 0.019964229168511219 0.13175580090867184 0.24632648339315491 0.27145097080667679 0.31662948054279777 0.37278300438404222 0.43448301460234456 0.49519273741129488 0.56151166691159993 0.62935848164395669 0.69950494393250162 0.77366280706661628 0.85271520492228703 0.93865237000290247 1.1302034288066150 1.3661519318309829 1.6216005335561317 2.0049666324931197 2.3839077855073252 ; 0.015873088767540788 0.15467851754028034 0.29936541644465098 0.32971884904124343 0.38402131954336993 0.45224259057428007 0.52946050718568305 0.60560611652796348 0.68134728645735443 0.75854125330646138 0.84093775424790629 0.93016118105447831 1.0270457902189911 1.1319221185011727 1.3602767797170474 1.6268134767958453 1.9083017964591107 2.3362896053494833 2.7556356809927718 ; 0.014093486460683449 0.16887982610687710 0.32905265477475198 0.36226297119131634 0.42155412441299384 0.49610737791492215 0.58066573630564222 0.66390556335340267 0.74582736436703345 0.82973051007554466 0.91942272032846561 1.0182927990762984 1.1252265218636666 1.2399435504435325 1.4874153008211757 1.7701399240273550 2.0647248695086269 2.5176425701295155 2.9600070184630165 ; 0.012463112858334562 0.18924521694109184 0.37007797755131216 0.40684274720423330 0.47246895084220930 0.55525428288650458 0.64870691344863207 0.74080398380748513 0.83226416114659896 0.92631762790113115 1.0275400709682607 1.1382898376536574 1.2578977938718039 1.3857598690499247 1.6591898131212390 1.9628794559867624 2.2750720347078537 2.7606511035430716 3.2347289099349794 ; 0.011954049300459697 0.20772523320308764 0.40612495899100010 0.44598996605169894 0.51714218253039768 0.60661785230392951 0.70732559943554552 0.80780232858119905 0.90900706833735090 1.0132381843577409 1.1233313075961882 1.2427124480935225 1.3722523568650531 1.5113420845700118 1.8096096437703859 2.1304508930295882 2.4584566609043126 2.9712699925205381 3.4737374035074748 ; 0.012319580893565702 0.22907622360993296 0.44670464945116473 0.49004658552837660 0.56731710373964117 0.66433697928702518 0.77302235273063091 0.88461479410255950 0.99785613172685350 1.1137095279046068 1.2329222906178112 1.3609798715939656 1.5017943033232271 1.6538169073672657 1.9799758049085618 2.3198640083709958 2.6663594817216270 3.2092706238949358 3.7449090789411441 ; 0.015749119331878302 0.26758721474543984 0.51740768703274698 0.56681610706893204 0.65481688242426928 0.76598042566470337 0.89259445170470464 1.0261928056321301 1.1608069143291246 1.2966936714454464 1.4325099731565827 1.5784699571939556 1.7403152765043262 1.9140339714957171 2.2794781614651676 2.6535854139805526 3.0330310361404034 3.6318369135297890 4.2310983528470869 ; 0.019861069576941313 0.29972375895529557 0.57541957940196131 0.63046285797156443 0.72856864029201951 0.85305514496947821 0.99639097390763931 1.1447939827842244 1.2930653378640526 1.4438624581866599 1.5959971037088865 1.7575561809555389 1.9339040501919316 2.1229094337305092 2.5213969946414485 2.9223816971243810 3.3271096171493397 3.9804395086590514 4.6383323691889533 ; 0.023512698156659313 0.32684910097671016 0.62575868001759305 0.68530282765345107 0.79123755713728783 0.92512736590760092 1.0786314238885701 1.2378230997950650 1.4005828247349539 1.5640545960362331 1.7273898543468218 1.9015921520040029 2.0898009364808505 2.2911501097287568 2.7163016322446958 3.1388440690487371 3.5658431257955860 4.2667152240381281 4.9758377456604155 ; 0.029434343445692773 0.36589055429609429 0.70080747020785805 0.76630068806432050 0.88293472327478961 1.0317567228257352 1.2014151108646638 1.3771991613919896 1.5570166693809646 1.7338223725496993 1.9096784514454177 2.0985790786916341 2.3034811096805430 2.5202440765562693 2.9795640236784746 3.4385104534363982 3.9010766251711075 4.6723612434415074 5.4583495487835174 ; 0.033618369345413762 0.38653165801594819 0.73739793934237685 0.80744073054645327 0.93206036633644340 1.0896381201419563 1.2693546877926993 1.4522197192812292 1.6408181424641650 1.8257041434737176 2.0076348250257747 2.2041949777502601 2.4167575709826927 2.6411824962615453 3.1183914042417329 3.5985955425190950 4.0826726471662163 4.8923769452183654 5.7215010777302915 ; 0.045760955120633703 0.43092339846977973 0.81542213160546528 0.89291004729399359 1.0311993981777416 1.2095350508164233 1.4112057854847329 1.6062329581444528 1.8084101482917425 2.0083077262653202 2.2075399303843000 2.4200068834248971 2.6503062771045158 2.8931435597887103 3.4110395459283125 3.9347488707453406 4.4670687293964333 5.3615764889895416 6.2855986442043230 ; 0.061589344525598277 0.46981013351415424 0.88307598694603895 0.96574299826832921 1.1122953592698754 1.2996208388014485 1.5139580175612735 1.7253604374774041 1.9369185130487214 2.1470541841145523 2.3598441407084612 2.5873243083819273 2.8309354493534542 3.0875631728457220 3.6398418216259043 4.1956729133277681 4.7677313728587700 5.7349258290668805 6.7362487480168065 ; 0.084089994558289846 0.51314183306274186 0.94822630609947223 1.0358894031096924 1.1923976279644659 1.3905837116468232 1.6176528455971215 1.8442133883882930 2.0705617554355493 2.2922232347526768 2.5128384000985289 2.7514205763115283 3.0092736993781481 3.2805914968315273 3.8660453510205097 4.4608334370484499 5.0765821486238556 6.1226446603788869 7.2040671905353424 ; 0.11941273594735624 0.57116945142181252 1.0194034910479741 1.1110718476700567 1.2753658917735908 1.4871681070394978 1.7358245806313430 1.9833577766051156 2.2277590689850308 2.4609144777977328 2.6928561385782461 2.9410367045873769 3.2137174323302542 3.5028864179175572 4.1253040025185141 4.7690709369688475 5.4405392775458230 6.5824955624304113 7.7558670640019507 ; 0.19902248877115689 0.69560061986276356 1.1724743001321976 1.2612237502425279 1.4189532370920490 1.6267921759226205 1.8906617364090175 2.1794999011689358 2.4701662519380285 2.7281374803681318 2.9737322980295602 3.2397529344504119 3.5344890446639425 3.8491123708960728 4.5358458768418162 5.2694720214215591 6.0418416504275418 7.3359033223110535 8.6415178394453314 ; 0.26045872934459741 0.77950853075387405 1.2949226977043111 1.3916739505669466 1.5653961856584280 1.8005605189808411 2.0795548002335598 2.3541147847863413 2.6409733726871663 2.8952261689829344 3.1446260558329415 3.4154551225282970 3.7203193963099772 4.0513076479316750 4.7906047507995275 5.5938091312913363 6.4298222046061877 7.8028543005537951 9.1736033738882483 ; 0.33382235283924522 0.87637827721511541 1.4271943183702056 1.5458149602585767 1.7632643900021323 2.0667777065659640 2.3751116647779091 2.5498649247406084 2.7949345670196011 3.0517689618754553 3.3070232905987451 3.5856410743845508 3.9049707647432963 4.2599667945443782 5.0668612148341952 5.9435068914250966 6.8414074222938313 8.2846997517113170 9.7129533472610792 ; 0.42321846173326144 1.0063277958538268 1.6246324380660369 1.7648550684970470 2.0212879236574892 2.3607987047567631 2.6248972891174835 2.8088192232355507 2.9941877758242685 3.2227709788547245 3.4758571581543496 3.7689553005792162 4.1061499845936584 4.4831368383048655 5.3714113573300013 6.3232857219309917 7.2756489791294738 8.7780962709325792 10.255942968624003 ; 0.57809053490179807 1.2493764465604098 1.9512309781214952 2.0912778375990246 2.3385208572886573 2.6334538841054376 2.9249670521377027 3.1377552401299433 3.3434994664998996 3.5426895235077738 3.7679028981332436 4.0587269116507372 4.4091018963927144 4.8151862847922731 5.8574024720568865 6.8905458775586830 7.8946550681145204 9.4566659227065646 10.988216332165150 ; 0.81797596948397311 1.5732410744320973 2.3106646408912859 2.4510612804187812 2.6971809158004101 2.9939059126639536 3.3091037830728269 3.5958868954929932 3.8748301160794885 4.0981968425238859 4.3171956086581984 4.5711395029660293 4.8972337925151681 5.3083164553654756 6.5737569706295842 7.6474055961321890 8.6818926135787375 10.289180192523363 11.867961578553539 ; 1.0296680974751695 1.8252920327373812 2.5947713527411875 2.7441936113040168 3.0077631361357735 3.3321615779186802 3.6905938521696142 4.0385993080923193 4.3725976138536540 4.6557346603825103 4.9168355105183643 5.1703197929449596 5.4966067443312125 5.9368290194067663 7.1439286568426690 8.2918095459184080 9.3593424030235788 10.995030833430405 12.607489009638986 ; 1.2294504341771570 2.0572829808239423 2.8707585001039240 3.0318724138203876 3.3173530491966896 3.6717171891410696 4.0662653162120774 4.4505925030893287 4.8237311813442965 5.1836465764020376 5.5387844100600843 5.9104999560121740 6.3220166312666617 6.7940657329818466 7.8817603849247257 8.9607294543962368 10.024316535338835 11.685859033489217 13.332233194448936 ; 1.4065303942367542 2.2663867226774252 3.1254893590209640 3.2976884050119128 3.6036496583492847 3.9858376947748524 4.4161893498937994 4.8439284748965283 5.2732821287468052 5.7056213636899029 6.1441005668205380 6.5971609990502094 7.0664796130280054 7.5502752267276918 8.5709291131541772 9.6058989133590167 10.647968043001384 12.325920727244066 14.005770449354795 ; 1.5790290070572186 2.4727369730236939 3.3778463677128943 3.5612291476874010 3.8879519132224569 4.2993059229146757 4.7698414928505954 5.2484090296886929 5.7404155171829139 6.2438589947349046 6.7543305997918335 7.2700982401653063 7.7830486794199008 8.2877333677850835 9.2729521398811965 10.260967248307214 11.274147418075799 12.963554302193982 14.677822567150741 ]; engine.deac_fuel_map_gps = [ NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN 0.29215128940911494 NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN 0.29059553654112902 0.33078977951619715 0.36555340142445575 0.40587877717514576 0.44903116867339132 NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN 0.27384690972035275 0.32079859421127860 0.36587983413661623 0.40999431532117259 0.46643847147006590 0.52976645389973631 0.58495811296235012 0.65603274932464495 0.73389350193835090 NaN NaN NaN NaN NaN ; NaN NaN NaN NaN 0.29738934741695794 0.35353193810398920 0.41325800458237921 0.47444541353348557 0.53731613511888299 0.60832336920420216 0.68247239017901185 0.75730992428889365 0.84480816077914744 0.93943790058178767 NaN NaN NaN NaN NaN ; NaN NaN NaN NaN 0.33785960031745221 0.40080579693403895 0.46744858452710963 0.53585684393257971 0.60814476148681507 0.68924622266217028 0.77110062153064218 0.85213121239752965 0.94536824972378475 NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN 0.39464147376561970 0.46759343226239169 0.54303039274415754 0.62370351812336111 0.70834940307301786 0.79999623126302621 0.89047062689386236 0.98063353265836295 1.0792990756498055 NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN 0.45144365409758880 0.53202158454611448 0.61293752162708137 0.70128912957896483 0.79635021064315259 0.89600525149690458 0.99570571015535336 1.0929956501757869 1.1965273598619461 NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN 0.51885056283283260 0.60589425783377504 0.69581031599270771 0.79108321757145095 0.89856512100612596 1.0047485439428159 1.1122170397638707 1.2194219485875599 NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN 0.74614413384651412 0.85958002945769585 0.97113936618054997 1.0984000639713341 1.2132418045541593 1.3293416712376445 1.4517954289172701 NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN 0.98196182286007649 1.1087865327193627 1.2443753679689051 1.3783199632373273 1.5122536563467150 NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN 1.2270762811093328 1.3713183241188265 1.5173331285094915 NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ; NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN NaN ]; % Fuel Properties engine.fuel = class_REVS_fuel('FTAG 28637'); % Idle Speed engine.idle_target_speed_radps = class_REVS_dynamic_lookup; engine.idle_target_speed_radps.axis_1.signal = 'eng_runtime_sec'; engine.idle_target_speed_radps.axis_1.breakpoints = [ 0.0000000000000000 10.000000000000000 ]; engine.idle_target_speed_radps.table = [ 60.737457969402662 60.737457969402662 ]; % Calibration Adjustment Factors engine.variant = 'basic engine';