Environmental requirements and regulatory environments call for major changes in mobility, which will significantly increase the share of both hybrid and especially electric vehicles in the coming years. One of the main differences between these types of drives compared to the conventional ones is a different mode of operation, such as the sudden stop and start of the internal combustion engine in hybrid vehicles, or even its complete absence in electric vehicles. All these differences in the mode of operation, as well as the absence of certain components and the presence of others in electric drives, create different requirements for lubricants and lubrication, and put different performance characteristics and properties of lubricants in the foreground. Therefore, in such systems the properties of lubricants are more critical, to which no special attention has been paid so far due to their use in internal combustion engine drives. In the coming years, this will lead to development of new and purposefully adapted lubricants with specific properties for electric drives.
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