Electric Vehicle Tribology

Challenges and Opportunities for a Sustainable Transportation Future

1st Edition - May 23, 2024
Editors: Leonardo Israel Farfan Cabrera, Ali Erdemir
Language: English
Paperback ISBN:
9 7 8 - 0 - 4 4 3 - 1 4 0 7 4 - 7
eBook ISBN:
9 7 8 - 0 - 4 4 3 - 1 4 0 7 5 - 4

Electric Vehicle Tribology: Challenges and Opportunities for a Sustainable Transportation Future provides practical, comprehensive guidance on a new and increasingly important… Read more

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Electric Vehicle Tribology: Challenges and Opportunities for a Sustainable Transportation Future provides practical, comprehensive guidance on a new and increasingly important area of tribology. Building skills from fundamentals to solution design, this book demonstrates the unique tribological techniques essential to the efficient electrification of transport systems. Led by Professors with a combined three decades in industry and academia, and collecting insights from experts around the world, this book begins with the essential knowledge regarding both Electric Vehicles and tribology.

After outlining the unique tribological needs of EVs, the book then breaks down the components and hardware required. It provides detailed protocols and methods for the testing and improvement of lubricants and materials, as well as a dedicated section on modern lubrication specific to EVs. Throughout, it considers the critical question of sustainable tribology, and the long-term sustainable options for lubrication and materials for electric vehicles.

Cover image
Title page
Table of Contents
Copyright
List of contributors
1. Introduction to electric vehicle tribology
Abstract
2. Tribological challenges for a sustainable e-mobility
Abstract
2.1 Introduction
2.2 Properties challenges
2.3 Summary and concluding remarks
References
3. Impact of electric vehicles on emissions, and potential tribological issues with hybrid electric vehicles
Abstract
3.1 Introduction
3.2 Deeper dive into vehicle CO2 emissions
3.3 CO2 emissions associated with vehicle lubrication
3.4 Hybrid electric vehicles and potential tribological issues
3.5 Conclusions
References
4. Tribodynamic analysis of electric vehicle powertrains
Abstract
4.1 Introduction
4.2 Electric motor bearing dynamics and tribology
4.3 Geartrain dynamics in electric vehicles
4.4 Tribodyanmics of alternative powertrain configurations
4.5 Conclusion and future direction
Acknowledgments
References
5. Rolling bearing damages as a result of current passing through the tribological contact
Abstract
5.1 Relevance
5.2 Parasitic currents as a result of motor control
5.3 Behavior of the tribocontact and relation to the electrical equivalent system
5.4 Possible damages
5.5 Known dimensioning parameters of the tribo-electrical contact
5.6 Strategies and opportunities for reducing parasitic currents
References
6. Lubrication of bearings under electrical conditions
Abstract
6.1 Introduction
6.2 Dry friction under electrical conditions
6.3 Molecular adsorption and orientation at the lubricated interface under electrical conditions
6.4 Microbubble behaviors in thin lubrication films under electrical conditions
6.5 Damage in bearings under electrical conditions
6.6 Summary
References
7. Damaging modes of rolling bearings in electrical vehicle applications—Part 1
Abstract
7.1 Introduction
7.2 Operating conditions of rolling bearings in EV
7.3 Tribological damaging modes in EV
7.4 Endurance testing of rolling bearings for EV
7.5 Summary and perspectives
References
8. Damaging modes of rolling bearings in electrical vehicle applications—Part 2
Abstract
8.1 Introduction
8.2 Grease lubricated rolling bearings in electrical vehicle
8.3 Electrical erosion modeling and testing of electrical vehicle motor bearings
8.4 Summary and perspectives
References
9. Advanced techniques for bearing condition monitoring
Abstract
9.1 Introduction and background
9.2 Condition monitoring system overview
9.3 Data analysis techniques
9.4 Case study on bearing condition monitoring in electric machines
9.5 Summary
Appendix
References
10. Lubrication regimes in battery electric vehicle power unit
Abstract
10.1 Introduction
10.2 Experimental details
10.3 Results and discussion
10.4 Conclusions
References
11. Thermal and electrical properties of electric vehicle fluids
Abstract
11.1 Introduction
11.2 Electrical properties of lubricants
11.3 Thermal management of electric vehicles and thermal fluids
11.4 Challenges in developing electric vehicle fluids and lubricants
11.5 Conclusion
References
12. Modeling electrical resistance of lubricated contacts
Abstract
12.1 Introduction
12.2 Nomenclature
12.3 Modeling methodologies
12.4 Pseudo-steady-state solutions
12.5 Alternative methodologies
12.6 Other notes
12.7 Conclusions
References
13. Grease design strategies for electric vehicles
Abstract
13.1 Challenges and opportunities
13.2 Grease architecture
13.3 Grease characterization
13.4 Summary and outlook
Acknowledgment
References
14. Fluid characteristics and requirements for battery thermal management in battery electric vehicles
Abstract
14.1 Introduction
14.2 E-thermal fluids
14.3 Conclusions and future work
References
15. Electrified tribotesting of lubricants and materials used in electric vehicle drivelines
Abstract
15.1 Background
15.2 Study case 1
15.3 Study case 2
15.4 Results and discussion
15.5 Conclusions and future work
References
16. Electric vehicle fluid testing
Abstract
16.1 Introduction
16.2 Tests
16.3 Conclusion
References
17. Glycerol-based lubricants for electric vehicles
Abstract
17.1 Background
17.2 Glycerol
17.3 Concluding remarks
References
Index

Leonardo Israel Farfan Cabrera

Dr. Leonardo I. Farfan-Cabrera is an Assistant Professor of automotive and mechanical engineering at Tecnologico de Monterrey in Mexico since 2018. He has been invited to be a visiting scholar by the University of Sheffield and Texas A&M University, working on the tribology of IC and electric vehicles, respectively. His PhD thesis “tribology of automotive components: cases of study” was awarded the best PhD thesis price at the IPN in 2018. He has performed 4 keynote conference speeches, holds 1 patent and has written more than 40 papers in peer-reviewed journals. He is currently the head of the Laboratory of Automotive Tribology (E-Mobility) and received the awards “Inspiring Professor - 2021” and “Distinguished Professor 2020 and 2021” from Tecnologico de Monterrey. He is an Associate Editor of the journals “IMechE part J Journal of Engineering Tribology” and “Mechanics and Industry” and Guest Editor of the journal “Lubricants”.

Affiliations and expertise

Assistant Professor, Automotive and Mechanical Engineering, Tecnologico de Monterrey, Monterrey, México.

Ali Erdemir

Dr. Ali Erdemir is a Professor and Halliburton Chair in the Mechanical Engineering Department of Texas A&M University, USA, and worked at Argonne National Laboratory for over thirty years. Dr. Erdemir has received numerous coveted awards, including STLE’s International Award, ASME’s Mayo D. Hersey Award, JAST’s Distinguished Tribologist Award, the University of Chicago’s Medal of Distinguished Performance, six R&D 100 Awards, two Al Sonntag Awards and an Edmond E. Bisson Award from STLE. He was elected to the US National Academy of Engineering, European Academy of Sciences and Arts, World Academy of Ceramics, The Science Academy of Turkey, and the presidency of the International Tribology Council and STLE. He has authored/co-authored more than 300 research articles and 18 book chapters, co-edited four books, presented more than 200 invited/keynote/plenary talks, and holds 33 U.S. patents. His current research focuses on combining scientific principles and engineering innovations to develop super-hard and super-low-friction materials, coatings, and lubricants for applications in a variety of energy systems.

Affiliations and expertise

Professor, Halliburton Chair, Mechanical Engineering, Texas A&M University, Texas, USA.

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