All-In-One e-Fluid Technology To Cool Inverter, e-Motor and Provide EV Gear Lubrication

Presented by:

  • Michael Gahagan, Technology Development Manager, Lubrizol

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Apr 18, 2024, 8:00 am EDT

The presentation describes an Evogen (TM) e-fluid technology from Lubrizol that can handle high-power density electrical drivetrains that effectively protects and cools inverter, e-motor and gearbox system. This means a combination of advanced hardware cooling approaches and an advanced fluid to prevent overheating of components. There is a benefit in this approach compared with the use of multiple coolants requiring different cooling & lubrication circuits with associated equipment which is not conducive towards high power densities.

The presentation summarises consortium work by FlandersMake, Dana, Diabatix and Lubrizol and we present a full thermal-hydraulic model and assembly of an electrical drivetrain which is cooled by a single oil cooling & lubrication circuit using modelling environments and physical testing in actual hardware. The thermal-hydraulic models were verified using more advanced computational tools and was aimed to investigate the thermal response of the electrical drivetrains under varying load conditions and using different cooling approaches. Such an arrangement would not be possible without a suitable electrically insulating e-fluid which is described.

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