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Objectified Evaluation and Classification of Passenger Vehicles Longitudinal Drivability Capabilities in Automated Load Change Drive Maneuvers at Engine-in-the-Loop Test Benches
Technical Paper
2020-01-0245
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The growing number of passenger car variants and derivatives in all global markets, their high degree of software differentiability caused by regionally different legislative regulations, as well as pronounced market-specific customer expectations require a continuous optimization of the entire vehicle development process. In addition, ever stricter emission standards lead to a considerable increase in powertrain hardware and control complexity. Also, efforts to achieve market and brand specific multistep adjustable drivability characteristics as unique selling proposition, rapidly extend the scope for calibration and testing tasks during the development of powertrain control units. The resulting extent of interdependencies between the drivability calibration and other development and calibration tasks requires frontloading of development tasks. Usually, drivability calibration takes place towards the end of the vehicle development program as soon as a sufficient level of product maturity is achieved. Hence, for streamlining the entire development process, various powertrain engineering tasks need to be shifted from the overall vehicle level to component conception phases. In this context, highly dynamic and appropriated “Hardware-in-the-Loop” (HiL) component test benches are the means of choice. Particularly for drivability calibration tasks, an objectified evaluation and classification approach is indispensable to be applied at HiL test benches for the identification and evaluation of drivability influencing factors during those heterogeneous testing scenarios.
Before this backdrop, this article presents the transfer and validation of an objectification and classification approach for longitudinal vehicle drivability capabilities from vehicle level to highly dynamic “Engine-in-the-Loop” (EiL) test benches. First, for two different “engine control unit” (ECU) drivability calibration data sets (sporty and comfort), a multitude of automated longitudinal drive maneuvers is performed in various gears and for different start conditions with a real vehicle on a proving ground. Subsequently, these test procedures are reproduced with the same combustion engine and ECU version at an EiL test bench. Thereto, modifications and enhancements to the test bench hardware, automation system and the real-time control models are required. Their influence on the objectified drivability test results and the degree of congruence between the drivability measurements with the real vehicle on the road and the EiL test bench are determined. In this context, internal combustion engine (ICE) related measurement data are presented for individual load change drive maneuvers. By utilizing a drivability objectification approach, the differences between the two ECU drivability calibrations are determined for both test scenarios. Furthermore, various characteristic drivability attributes are illustrated and explained for several gears for both test scenarios and also directly compared to each other. In addition, the gear specific identification and reflecting quality for the different characteristic drivability attributes for both ECU calibrations are illustrated and discussed in detail by utilizing characteristic 3D diagrams. The transferability of the drivability evaluation approach from the real vehicle to the EiL test bench is validated successfully. A good correlation in the characteristic drivability attributes can be achieved between both test scenarios.
Authors
- Daniel Guse - RWTH Aachen University
- Christian Heusch - RWTH Aachen University
- Serge Klein - RWTH Aachen University
- Timm Fahrbach - RWTH Aachen University
- Jakob Andert - RWTH Aachen University
- Stefan Pischinger - RWTH Aachen University
- Stefan Tegelkamp - FEV Europe GmbH
- Martin Nijs - FEV Europe GmbH
- Johannes Scharf - FEV Europe GmbH
Topic
Citation
Guse, D., Heusch, C., Klein, S., Fahrbach, T. et al., "Objectified Evaluation and Classification of Passenger Vehicles Longitudinal Drivability Capabilities in Automated Load Change Drive Maneuvers at Engine-in-the-Loop Test Benches," SAE Technical Paper 2020-01-0245, 2020, https://doi.org/10.4271/2020-01-0245.Data Sets - Support Documents
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References
- Lüdiger , T. and Wittler , M. The Electrification of the Powertrain and Its Impact on the Machinery Industry and Component Suppliers 27th Aachen Colloquium Automobile and Engine Technology Aachen 2018
- Scharf , J. , Thewes , M. , Balazs , A. , Görgen , M. et al. All Clean Gasoline Hybrid Powertrains - Real Driving Emissions, Lambda = 1 and Euro 7 27th Aachen Colloquium Automobile and Engine Technology Aachen 2018
- Guse , D. , Heusch , C. , Pischinger , S. , Tegelkamp , S. et al. Objectified Drivability Evaluation and Classification of Passenger Vehicles in Automated Longitudinal Vehicle Drive Maneuvers with Engine Load Changes SAE Technical Paper 2019-01-1286 2019 https://doi.org/10.4271/2019-01-1286
- Basshuysen , R. Ottomotoren mit Direkteinspritzung und Direkteinblasung - Ottokraftstoffe, Erdgas, Methan, Wasserstoff ATZ/MTZ Fachbuch Wiesbaden Springer Vieweg 2017 10.1007/978-3-658-12215-7
- Merker , G. , Teichmann , R. Grundlagen Verbrennungsmotoren - Funktionsweise und alternative Antriebssysteme Verbrennung, Messtechnik und Simulation ATZ/MTZ Fachbuch Wiesbaden Springer Vieweg 2018 10.1007/978-3-658-19212-9
- Faghani , E. , Andric , J. , and Sjoblom , J. Toward an Effective Virtual Powertrain Calibration System SAE Technical Paper 2018-01-0007 2018 https://doi.org/10.4271/2018-01-0007
- Venkitachalam , H. , von Wissel , D. , Richenhagen , J. Metric-Based Evaluation of Software Architecture for an Engine Management System SAE Int. J. Engines 9 3 1377 1385 2016 https://doi.org/10.4271/2016-01-0037
- Ulmer , H. , Heilig , A. , Rühl , M. , and Löw , B. Improving the Calibration Process of Internal Combustion Engines by Using an Innovative Multidimensional Optimization Algorithm SAE Technical Paper 2016-01-2153 2016 https://doi.org/10.4271/2016-01-2153
- Pervez , N. , Kue , A. , Appukuttan , A. , Bogema , J. et al. Data Driven Calibration Approach SAE Int. J. Commer. Veh. 10 1 353 359 2017 https://doi.org/10.4271/2017-01-0607
- Klein , S. , Xia , F. , Savelsberg , R. , Guse , D. et al. Engine in the Loop: Closed Loop Test Bench Control with Real-Time Simulation SAE Int. J. Commer. Veh. 10 1 95 105 2017 https://doi.org/10.4271/2017-01-0219
- Guse , D. , Klein , S. , Andert , J. , Pischinger , S. et al. Virtual Transmission Evaluation Using an Engine-in-the-Loop Test Facility SAE Technical Paper 2018-01-1361 2018 https://doi.org/10.4271/2018-01-1361
- Andert , J. , Klein , S. , Savelsberg , R. , Pischinger , S. et al. Virtual Shaft: Synchronized Motion Control for Real Time Testing of Automotive Powertrains Control Engineering Practice 56 2016 10.1016/j.conengprac.2016.08.005
- Andert , J. , Huth , T. , Savelsberg , R. , and Politsch , D. Testen von Antriebssträngen mit der virtuellen Welle ATZextra 20 2015 10.1007/s35778-015-0044-7
- Fraidl , G. , Kapus , P. , and Vidmar , K. From RDE towards RDD Does RDE Require Real Driving Diagnostics? 12th Internationales Symposium für Verbrennungsdiagnostik Kurhaus Baden-Baden 2016
- Andert , J. , Xia , F. , Klein , S. , Guse , D. et al. Road-to-Rig-to-Desktop: Virtual Development Using Real-Time Engine Modelling and Powertrain Co-Simulation International Journal of Engine Research 2018 10.1177/1468087418767221
- Lee , S. , Andert , J. , Neumann , D. , Querel , C. et al. Hardware-in-the-Loop-Based Virtual Calibration Approach to Meet Real Driving Emissions Requirements SAE Int. J. Engines 11 6 1479 1504 2018 https://doi.org/10.4271/2018-01-0869
- Xia , F. , Lee , S. , Andert , J. , Kampmeier , A. et al. Crank-Angle Resolved Real-Time Engine Modelling: A Seamless Transfer from Concept Design to HiL Testing SAE Int. J. Engines 11 6 1385 1398 2018 https://doi.org/10.4271/2018-01-1245
- Lee , S. , Andert , J. , Pischinger , S. , Ehrly , M. et al. Scalable Mean Value Modeling for Real-Time Engine Simulations with Improved Consistency and Adaptability SAE Technical Paper 2019-01-0195 2019 https://doi.org/10.4271/2019-01-0195
- Jiang , S. , Smith , M.H. , and Kitchen , J. Development of an Engine-in-the-Loop Vehicle Simulation System in Engine Dynamometer Test Cell SAE Technical Paper 2009-01-1039 2009 https://doi.org/10.4271/2009-01-1039
- Guse , D. , Nijs , M. , Trampert , S. , and Huth , T. Simulation von realen Fahrszenarien am Prüfstand MTZextra 22 2017 10.1007/s41490-017-0008-5
- Rainer , G. Powertrain Development: Simulation Goes Testing SAE Technical Paper 2011-26-0072 2011 https://doi.org/10.4271/2011-26-0072
- Beidl , C. , Zlojo , H. , and Kuznik , A. 2025+ Requirements on Emission Control 27th Aachen Colloquium Automobile and Engine Technology Aachen 2018
- Danzer , C. , Kratzsch , M. , Vallon , M. , and Günther , T. Flottenantrieb 2025 - CO 2 - und kostenoptimierte Baukastenantriebe Motortechnische Zeitschrift 02 2018
- Mohr , D. , Müller , N. , Krieg , A. , Gao , P. et al. Aug. 2013
- The European Commission Official Journal of the European Union July 01, 2017
- Ministry of Environmental Protection and State Administration for Quality Supervision and Inspection and Quarantine 2016
- Pischinger , S. 2019
- Tschöke , H. Real Driving Emissions (RDE) - Gesetzgebung, Vorgehensweise, Messtechnik, Motorische Maßnahmen, Abgasnachbehandlung, Auswirkungen ATZ/MTZ Fachbuch Wiesbaden Springer Vieweg 2019 10.1007/978-3-658-21079-3
- Zellbeck , H. , Walter , R. , Stiegler , M. , and Roß , T. RDE - Der reale Fahrberteib auf dem hochdynamischen Motorprüfstand Motortechnische Zeitschrift 02 2015 10.1007/s35146-014-2007-8
- Maschmeyer , H. , Kluin , M. , and Beidl , C. Real Driving Emissions - Ein Paradigmenwechsel in der Entwicklung Motortechnische Zeitschrift 02 2015 10.1007/s35146-014-2022-9
- Gerstenberg , J. , Hartlief , H. , and Tafel , S. RDE-Entwicklungsumgebung am hochdynamsichen Motorprüfstand ATZextra 20 2015 10.1007/s35778-015-0039-4
- Maschmeyer , H. , Beidl , C. , Düser , T. , and Schick , B. RDE-Homologation - Herausforderungen, Lösungen und Chancen Motortechnische Zeitschrift 10 2016 10.1007/s35146-016-0110-8
- Gerstenberg , J. , Schyr , C. , Sterzing-Oppel , S. , and Trenkle , D. Effiziente RDE-Entwicklung mittels Engine-in-the-Loop-Prüfständen Motortechnische Zeitschrift 06 2017 10.1007/s35146-017-0042-y
- Schröder , M. , Baltes , N. , and Danzer , J. Potenzial von Prüfstandsmessungen unter RDE-Anforderungen Motortechnische Zeitschrift 06 2017 10.1007/s35146-017-0071-6
- Walter , S. , Meyer , N. , Schulze , T. , Andert , J. et al. Durchgängigkeit von der Straße auf den Prüfstand bis zur Simulation - eine qualitative Analyse am Beispiel RDE ATZ/MTZ Fachbuch “Simulation und Test 2017 - Antriebsentwicklung im digitalen Zeitalter” Wiesbaden Springer Vieweg 2018 10.1007/978-3-658-20828-8_8
- Jung , T. , Kötter , M. , Schaub , J. , Quérel , C. et al. Engine-in-the-Loop: A Method for Efficient Calibration and Virtual Testing of Advanced Diesel Powertrains ATZ/MTZ Fachbuch “Simulation und Test 2018 - Antriebsentwicklung im digitalen Zeitalter” Wiesbaden Springer Vieweg 2019 10.1007/978-3-658-25294-6_12
- Kötter , M. , Lindemann , B. , Bergmann , D. , Ehrly , M. et al. Powertrain Calibration Based on X-in-the-Loop: Virtualization in the Vehicle Development Process ATZ/MTZ Fachbuch “Internationales Stuttgarter Symposium - Automobil- und Motorentechnik” Wiesbaden Springer Vieweg 2018 10.1007/978-3-658-21194-3_91
- Petters , J. RDE-Optimierung mittels Abbildung verschiedener Fahrercharakteristiken ATZ/MTZ Fachbuch “Simulation und Test 2018 - Antriebsentwicklung im digitalen Zeitalter” Wiesbaden Springer Vieweg 2019 10.1007/978-3-658-25294-6_6
- Mayr , C. , Merl , R. , Gigerl , H. , Teitzer , M. et al. Test emissionsrelevanter Fahrzyklen auf dem Motorprüfstand ATZ/MTZ Fachbuch “Simulation und Test 2018 - Antriebsentwicklung im digitalen Zeitalter” Wiesbaden Springer Vieweg 2019 10.1007/978-3-658-25294-6_7
- Claßen , J. , Sterlepper , S. , Dorscheidt , F. , Görgen , M. et al. RDE-Cycle-Generation - A Statistical Approach to Cut Down Testing Effort and Provide a Secure Base to Approve RDE Legislation Compliance ATZ/MTZ Fachbuch “Internationaler Motorenkongress 2019” Wiesbaden Springer Vieweg 2019 10.1007/978-3-658-26528-1_3
- Claßen , J. , Sterlepper , S. , Dorscheidt , F. , Görgen , M. et al. RDE-Cycle-Generation - A Statistical Approach to Provide a Secure Base to Approve RDE Legislation Compliance Symposium for Combustion Control 2019 Aachen 2019
- Merker , G. and Teichmann , R. Grundlagen Verbrennungsmotoren - Funktionsweise und alternative Antriebssysteme Verbrennung, Messtechnik und Simulation ATZ/MTZ Fachbuch Wiesbaden Springer Vieweg 2019 10.1007/978-3-658-23557-4
- Braess , H. and Seiffert , U. Vieweg Handbuch Kraftfahrzeugtechnik ATZ/MTZ Fachbuch Wiesbaden Springer Vieweg 2013 10.1007/978-3-658-01691-3
- Schoeggl , P. and Ramschak , E. Vehicle Driveability Assessment Using Neural Networks for Development, Calibration and Quality Tests SAE Technical Paper 2000-01-0702 2000 https://doi.org/10.4271/2000-01-0702
- Liu , P. , Zhang , T. , and Zhao , X. Vehicle Drivability Evaluation and Pedal-Acceleration Response Analysis Advances in information Sciences and Service Sciences (AISS) 5 10 May 2013 10.4156/AISS.vol5.issue10.59
- Ebel , B. and Hofer , M. Automotive Management - Strategie und Marketing in der Automobilwirtschaft Berlin Springer Gabler 2014 10.1007/978-3-642-34068-0
- Weber , J. Automotive Development Processes - Processes for Successful Customer Oriented Vehicle Development Berlin Springer Gabler 2009 10.1007/978-3-642-01253-2
- List , H. and Schoeggl , P. Objective Evaluation of Vehicle Driveability SAE Technical Paper 980204 1998 https://doi.org/10.4271/980204
- Wei , X. and Rizzoni , G. Objective Metrics of Fuel Economy, Performance and Driveability - A Review SAE Technical Paper 2004-01-1338 2004 https://doi.org/10.4271/2004-01-1338
- Millo , F. , Ferraro , C. , Mallamo , F. , and Pilo , L. Numerical Simulation to Improve Engine Control During Tip-In Manoeuvres SAE Technical Paper 2003-01-0374 2003 https://doi.org/10.4271/2003-01-0374
- Holzinger , J. , Schöggl , P. , Schrauf , M. , and Bogner , E. Objektivierung der Fahrbarkeit beim Automatisierten Fahren Automobiltechnische Zeitschrift 12 2014 10.1007/s35148-014-2013-7
- Ladwig , S. , Köhler , A. , and Schwalm , M. Fahrbarkeit in der Kundenanwendung - Ein konzeptueller Ansatz ATZextra 23 2018 10.1007/s35778-017-0094-0
- Barth , S. and Fischer , M. Konsistentes Antriebsstrangverhalten - Der Schlüssel zu Kundenakzeptanz? Motortechnische Zeitschrift 07-08 2019 10.1007/s35146-019-0056-8
- Jayaraman , H. , Rao , N. , Muthiah , S. , and Mohan , S. Optimization of Tip-In Response Character of Sports Utility Vehicle and Verification with Objective Methodology SAE Technical Paper 2015-01-1354 2015 https://doi.org/10.4271/2015-01-1354
- Isermann , R. Elektronisches Management motorischer Fahrzeugantriebe - Elektronik, Modellbildung, Regelung und Diagnose für Verbrennungsmotoren, Getriebe und Elektroantriebe ATZ/MTZ Fachbuch Wiesbaden Vieweg Teubner 2010 10.1007/978-3-8348-9389-5
- Reif , K. Grundlagen Fahrzeug- und Motorentechnik Bosch Fachinformation Automobil Wiesbaden Vieweg Teubner 2012 10.1007/978-3-8348-8320-9
- Reif , K. Ottomotor-Management - Steuerung, Regelung und Überwachung Bosch Fachinformation Automobil Wiesbaden Springer Vieweg 2014 10.1007/978-3-8348-2102-7
- Capitani , R. and Delogu , M. Analysis of the Influence of a Vehicle’s Driveline Dynamic Behavior Regarding the Performance Perception at Low Frequencies SAE Technical Paper 2001-01-3333 2001 https://doi.org/10.4271/2001-01-3333
- Dorey , R. and Holmes , C. Vehicle Driveability - Its Characterisation and Measurement SAE Technical Paper 1999-01-0949 1999 https://doi.org/10.4271/1999-01-0949
- Guse , D. , Pischinger , S. , Nijs , M. , and Tegelkamp , S. Objektivierung der Fahrbarkeit von Pkw auf dynamischen EiL-Motorprüfständen MTZextra 24 2019 10.1007/s41490-019-0007-9
- Grupp , M. , Krenn , M. , Vieler , H. , Popp , C. et al. Integriertes Chassis Management und Fahrdynamik Control - Integrierte Fahrdynamikregelung ATZextra 13 2008 10.1365/s35778-008-0172-4
- Schwarz , R. and Ullmann , S. FAHRZEUGABSTIMMUNG - EINE FRAGE DES CHARAKTERS ATZextra 15 2010 10.1365/s35778-010-0470-5
- Ullmann , S. SELEKTIVE ELEKTRONISCHE FAHRZEUGABSTIMMUNG ATZextra 16 2011 10.1365/s35778-011-0622-2
- Schmidt , S. , Elbs , M. Automotive systems engineering - Enabled by virtual prototypes ATZ/MTZ Fachbuch “Internationales Stuttgarter Symposium - Automobil- und Motorentechnik” Wiesbaden Springer Vieweg 2018 10.1007/978-3-658-21194-3_97
- Dohmen , H. and Fehl , G. Dynamic and Transient Engine Testing Application, System Requirements and Modular Structures SAE Technical Paper 982958 1998 https://doi.org/10.4271/982958
- Jiang , S. , Smith , M. , Kitchen , J. , and Ogawa , A. Development of an Engine-in-the-loop Vehicle Simulation System in Engine Dynamometer Test Cell SAE Technical Paper 2009-01-1039 2011 https://doi.org/10.4271/2009-01-1039
- Del Mastro , A. , Chasse , A. , Pognant-Gros , P. , Corde , G. et al. Advanced Hybrid Vehicle Simulation: From “Virtual” to “HyHiL” Test Bench SAE Technical Paper 2009-24-0068 2009 https://doi.org/10.4271/2009-24-0068
- Teiner , P. and Schneeweiss , B. Evaluation of Nox and Fuel Consumption Reduction Potential of Parallel Diesel-Hybrid Powertrains Using Engine-In-the-Loop Simulation SAE Technical Paper 2010-32-0128 2010 https://doi.org/10.4271/2010-32-0128
- Shidore , N. , Ickes , A. , Wallner , T. , Rousseau , A. et al. Evaluation of Ethanol Blends for Plug-In Hybrid Vehicles Using Engine in the Loop SAE Technical Paper 2012-01-1280 2012 https://doi.org/10.4271/2012-01-1280
- Ellies , B. , Schenk , C. , and Dekraker , P. Benchmarking and Hardware-in-the-Loop Operation of a 2014 MAZDA SkyActiv 2.0L 13:1 Compression Ratio Engine SAE Technical Paper 2016-01-1007 2016 https://doi.org/10.4271/2016-01-1007
- Tavares , F. , Johri , R. , Salvi , A. , Baseley , S. et al. Hydraulic Hybrid Powertrain-in-the-Loop Integration for Analyzing Real-World Fuel Economy and Emissions Improvements SAE Technical Paper 2011-01-2275 2011 https://doi.org/10.4271/2011-01-2275
- Etzold , K. , Fahrback , T. , Klein , S. , Scheer , R. et al. Function Development with an Electric-Machine-in-the-Loop Setup: A Case Study IEEE Transactions on Transportation Electrification 2019 10.1109/TTE.2019.2952288
- Guse , D. , Roehrich , H. , Lenz , M. , and Pischinger , S. Influence of Vehicle Operators and Fuel Grades on Particulate Emissions of an SI Engine in Dynamic Cycles SAE Technical Paper 2018-01-0350 2018 https://doi.org/10.4271/2018-01-0350
- Klein , S. , Griefnow , P. , Guse , D. , Xia , F. et al. Virtual 48V Mild Hybridization: Efficient Validation by Engine-in-the-Loop SAE Technical Paper 2018-01-0410 2018 https://doi.org/10.4271/2018-01-0410
- Zehetner , J. , Stettinger , G. , Kokal , H. , and Toye , B. Echtzeit-Co-Simulation für die Regelung Eines Motorprüfstands Automobiltechnische Zeitschrift 02 2014 10.1007/s35148-014-0042-x
- Walter , S. , Guse , D. , Klein , S. , Meyer , N. et al. Engine-in-the-Loop - Auswirkung der Echtzeitperformance auf die Abbildungsgüte von Fahrzyklen ATZ/MTZ Fachbuch “Simulation und Test 2019 - Antriebsentwicklung im digitalen Zeitalter” Wiesbaden Springer Vieweg 2020
- Klein , S. 2020
- Simon , D. Optimal State Estimation: Kalman, H Infinity, and Nonlinear Approaches John Wiley & Sons, Inc. 2006 10.1002/0470045345
- Grewal , M. and Andrews , P. Kalman Filtering: Theory and Practice with MATLAB New York John Wiley & Sons, Inc. 2001 0-471-26638-8
- Ferreau , H. , Potschka , A. , and Kirches , C. https://projects.coin-or.org/qpOASES
- Meyer , N. , Al Tarooti , A. , Guse , D. , and Klein , S. Driver Modeling and Simulation for RDE Testing - Effect of Driver Behavior on Representative Test Results JSAE Annual Spring Congress 2019 Yokohama, Japan 2019
- Meyer , N. , Walter , S. , Guse , D. , and Klein , S. Vehicle-Comparative Calibration - Crucial Factors for Efficient in-the-Loop Operation of Dynamic Engine Test Benches 4th International Conference: Diesel Powertrains 3.0 Coventry, Great Britain 2018
- Trampert , S. , Jung , T. , Kötter , M. , and Henning , L. Benefits from Advanced Test Bench Tools Accelerating the Calibration Process of Diesel Powertrains International Conference: Diesel Powertrains 3.0 Coventry, Great Britain 2018
- Vedula , S. , Pandey , N. , Tellikepalli , K. , and Thimmalapura , S. Novel Approaches for Model-Based Development - Part I: Developing a Real-World Driver Model SAE Technical Paper 2016-01-0323 2016 https://doi.org/10.4271/2016-01-0323
- Castellazzi , L. , Tonoli , A. , Amati , N. , Piu , A. et al. Vehicle Driveability: Dynamic Analysis of Powertrain System Components SAE Technical Paper 2016-01-1124 2016 https://doi.org/10.4271/2016-01-1124
- Stoffels , H. An Approach for the Objective Description of Vehicle Longitudinal Acceleration SAE Technical Paper 2011-24-0166 2011 https://doi.org/10.4271/2011-24-0166
- Dorey , R. and Marin , E. Vehicle Driveability - The Development of an Objective Methodology SAE Technical Paper 2000-01-1326 2011 https://doi.org/10.4271/2000-01-1326
- Vehicle Dynamics Standards Committee 2016
- Murayama , T. , Sakurai , M. , and Yamamoto , S. Psychological Measurement of Vibration Specific Ride Comfort on Urban Streets International Journal of Affective Engineering 13 2 127 132 2014 10.5057/ijae.13.127