Patent 10514088 was granted and assigned to NIO (car company) on December, 2019 by the United States Patent and Trademark Office.
A system and method for automatic oil exchange service for electric vehicle gearboxes. The system and method includes a mechanism for monitoring and reporting status of the oil change in the gearbox. This ensures that each oil change is kept track of, that the oil is the correct grade, and that the vehicle ends up with oil that has maximum properties, avoiding contamination and improving the life of the gearbox. The present invention may be integrated directly at the same place as an electric vehicle charging station, supercharger station, or at any battery swap station.