Electrified four-ball testing-A potential alternative for assessing lubricants (E-fluids) for electric vehicles

Article Engineering, Chemical

Latest developments in designing advanced lubricants and greases for electric vehicles-An overview

Raj Shah et al.

Summary: The rise of electric vehicles has driven the development of lubricant and grease technology, providing opportunities to create new products to improve fuel efficiency and performance.

LUBRICATION SCIENCE (2022)

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Article Engineering, Mechanical

Electrical compatibility of transmission fluids in electric vehicles

E. Rodriguez et al.

Summary: This study focuses on the electrical compatibility of three automatic transmission fluids (ATFs) in electrified drivelines and their changes in electrical conductivity during oxidation. The results indicate that the higher content of additive leads to lower variations in electrical conductivity, and electrical conductivity measurements are more suitable for monitoring oil thermo-oxidative degradation at initial stages compared to FT-IR measurements. While conventional ATFs maintain good electrical compatibility in electrified drivelines, their materials compatibility and copper corrosion protection for electrical components should also be tested.

TRIBOLOGY INTERNATIONAL (2022)

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Article Engineering, Mechanical

Grease Performance Requirements and Future Perspectives for Electric and Hybrid Vehicle Applications

Raj Shah et al.

Summary: The rise of electric vehicle sales is driven by the trend towards a greener environment and reduced greenhouse gas emissions. Grease lubricants play a crucial role in the component life of these vehicles, but face challenges under demanding operating conditions. Future development trends include the selection and development of gear oils, coolants, and greases to meet the specific requirements of electric modules, sensors, and circuits in EVs/HVs influenced by electrical current and electromagnetic fields.

LUBRICANTS (2021)

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Review Thermodynamics

Recent trends in batteries and lubricants for electric vehicles

Raj Shah et al.

Summary: The future progress of hybrid and battery vehicles relies on optimizing battery components and lubricants, with a focus on electrode material, surface coatings, and electrolyte selection for maximizing energy output and safety. Prioritizing specific lubricants for electric motors and friction contacts is crucial for achieving driving ranges comparable to combustion engine vehicles. Ongoing research in cell chemistry, electrode surface engineering, electrolyte engineering, and engine lubrication offers the greatest opportunity for reaching these goals.

ADVANCES IN MECHANICAL ENGINEERING (2021)

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Review Engineering, Mechanical