Tesla Cybertruck: Tesla Model S Induction Motor Design

Tesla Model S Induction Motor Design

Assembly of a model s. By polyphase we mean that the stator contains multiple distinct windings per motor pole driven by corresponding time shifted sine waves.

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Designed by alan cocconi while working at aerovironment the ev1 induction motor was based on well knows 400 hz specs and when later combined with a copper rotor achieved torque density comparable to pm motors.

Tesla model s induction motor design. The december 2017 consumer reports owner satisfaction survey had the tesla model s at the top. Teslas 3 phase 4 pole ac induction motor why nikola teslas 19th century induction motor is the ideal choice for the 21st century electric car. The tesla model s was the top selling plug in electric car worldwide in 2015 and 2016 and by the end of 2018 continued to rank as the second most sold electric car in history after the nissan leaf.

In fact 90 of industrial motors are induction motors. Tesla initially licensed the design from cocconis company ac propulsion. Most large 1 hp or 1 kw industrial motors are polyphase induction motors.

With model s and model x tesla has been using ac induction electric motors for years but the company switched to permanent magnet electric motors when introducing the model 3 back in 2017. But teslas model s and model x both use induction motors. Teslas top motor engineer shares information about the design process for a permanent magnet motor for the tesla model 3.

This is a reference to the way the coils on the stator are wired to work with the 3 phase power. Tesla made a significant change to its electric motor strategy with the introduction of the model 3 switching from an ac induction motor to a permanent magnet motor. Tesla sold the manufacturing rights to george westinghouse for 65000.

Why then a six pole motor. At 530 min in. The induction motor used in the roadster actually had roots going all the way back to gms ev1 motor which was designed by alan cocconi.

The induction motor powertrain used by tesla has its roots in the original gm ev1 from 25 years ago. Nikola tesla conceived the basic principles of the polyphase induction motor in 1883 and had a half horsepower 400 watts model by 1888. Now teslas principal.

Cocconi based it on existing ac induction motor specs. The tesla induction motor is a 4 pole design as are many ev motors.

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