终于有人测量了它：一项重要发现.pdf

1、SOMEONE FINALLY MEASURED ITGREG BANISHSOUNDS EASY AT FIRSTEPA PapersSignature Device Testing2020-01-03722018-01-06502016-01-2324ECM“QBF”Sensors Inc.EOL Tester1 MPH OVER THE LIMIT?REALITY OF ENFORCEMENT NEEDSDO WE NEED A 1066 LAB TO FIND THIS?02040608010012020406080100120140160180Mini PEMS Overall Sc

2、oreCert.Emissions BinMini-PEMs vs Cert Bin02040608010012020406080100120140160180Mini PEMS Overall ScoreCert.Emissions BinMini-PEMs vs Cert BinSpeeding TicketClean ResultTIERED INSPECTION SCRUTINYFORENSIC INVESTIGATIONLIMITED BUDGET$DRIVE TE$T PLAN$“What does CLEAN look like?”Measured gramsTarget Cer

3、t LimitMeasurement UncertaintyCHALLENGES FOUND IN EARLY MINIPEMS TESTINGTesting Noise Factors Match Real World Usage(Nobody actually drives the cycle!)Weather ChangesTrafficDriving HabitsMurphys LawCHALLENGES CONTDBarriers to AccessCostCostCostCHALLENGES CONTDRandom Fuel QualityLocal BlendsSummer/Wi

4、nter BlendEthanol ContentAging,loss of VOCsFormulation,H:C,O:C,AdditivesCHALLENGES CONTDSensing LimitsNOx Sensor Warmup DriftAmmonia vs NOx?Potentially Long Flight Path Loss of Temperature Continued Reactions Post-Cat Lambda Errors Tailpipe vs Catalyst OutCHALLENGES CONTDExhaust Leaks are Inevitable

5、Weep HolesOpen Exhaust TipsJoint LeaksSample Tube ReversionCHALLENGES CONTDECU Connectivity for Mode$01 dataCAN Channel vs Generic OBDUnique Channel IDs per OEMNeed to Connect Prior to TestUnavailable ChannelsNarrow/Wideband O2Missing Vehicle Speed PIDCHALLENGES CONTDTest to the Cycle,Which One?Cold

6、 StartUrban DriveExtra-Urban DriveHigh SpeedIdleTransientsA/B Test OverlayRaw ECU LogsCASE STUDY MODIFIED F1502022 3.5L EcoBoostAftermarket ECU CalibrationIncreased Torque Limits,Max Boost Target3WC Retained,UnmodifiedLarger PFI InjectorsBa