Tesla car induction motor




Tesla car induction motor

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  • Those historical dots being connected as they were, denote the principal reason Tesla Motors used the induction motor in its first production car.

    (One of the first alternating-current induction motor inventors: Nikola Tesla.) Our collective and virtually absolute lack of knowledge of what.

    While Brush DC motors can have permanent magnets, the size of the magnets for traction . and now why Tesla uses induction motors.

    Tesla car induction motor

    Tesla car induction motor

    Moderate - inverters add cost, but motor is cheap. Rotor cooling is easier and peak point efficiency is generally higher for this drive. Technical information is scarce, and mostly found only in forums and niche technology sites. Because the amount of energy that can be stored chemically i.

    Tesla car induction motor

    Tesla car induction motor

    Tesla car induction motor

    Tesla car induction motor

    Tesla car induction motor

    Tesla Roadster Motor and Other Features | HowStuffWorks

    Internal combustion engines have been around for about years. We can chat with our pals about compression ratios and horsepower and valve timing. We know the advantages of displacement and the efficiency of turbos. Car meets quickly turn into oceans of popped hoods. Even the most cutting-edge engine tech in the latest hypercar is parsed out thoroughly in the automotive media.

    You know, the ones that have been around for almost years and were powering cars in the s, until gasoline engines overtook them due to their range and speedy refueling. One of the first alternating-current induction motor inventors: Our collective and virtually absolute lack of knowledge of what actually drives the wheels of all the new electric vehicles on the roads today is, indeed, puzzling.

    Tesla car induction motor

    How bad is this problem? Technical information is scarce, and mostly found only in forums and niche technology sites. Not that you could blame him: Among reviewers, Roy is far from the only one to give the motor short shrift. Most EV reviews gloss over that key part of the tech, except to note its relative quiet, its torquey response, and its simplicity and long-term low maintenance requirements. Most of the space dedicated to the powertrain focuses instead on the battery—how big, its construction and composition, where it sits, how much range it has, how many days it takes to fully charge, and so forth.

    But then, it's hard to blame people for not giving a damn. Consider, for one thing, that most carmakers have brought motor manufacturing in-house. Lighter materials in motor construction, new alternative solutions for rare-earth magnets, and optimized overall performance characteristics for different vehicle demands are all very much in the crosshairs of automotive engineers.

    Tesla car induction motor

    Once you dig in a bit, it becomes clear how much of said optimization and development is really going on. One of the key choices is the general type of the motor. Tesla, for instance, while typically very tight-lipped about its innovation, made a significant change with its Model 3 in its decision to use a permanent-magnet electric motor instead of the AC induction motor it has used so far.

    The Chevy Bolt uses a similar strategy for the same reason. Other times, the manufacturer will focus on ways of reducing the costs of the motor in order to make EVs more affordable. For its own electrification efforts, Honda has been in hot pursuit of both performance and efficiency benefits carefully designed motors can provide.

    This configuration allows for precision torque vectoring in an all-wheel-drive setup, with a conventional or hybrid engine supplying power to the other axle. Additionally, Honda made the motors in the new Accord Hybrid smaller by using square copper wires instead of round ones in its stator—the stationary part of an electric motor, which generates the alternating magnetic field to spin the rotor—since square wires nest more compactly and densely.

    Tesla car induction motor

    Engineers also used three smaller magnets in place of two larger ones for the motor, which helps improve torque, the company said. Honda is also well-known for its integrated electric motosr, which sit between the engine and transmission in hybrid models. They are not off-the-shelf components.

    In the future, motors will naturally continue to grow in performance and efficiency. Some innovators will seek out magnets made using more low-cost and non-rare-earth elements, as Honda recently did in a development project with Daido Steel. Their neodymium magnet contains no heavy rare earth materials, but is still powerful enough for vehicle use. Motor speeds will also improve; right now they range from roughly 12,—18, rpm, but researchers are developing motors that can reach 30, rpm—with the benefit that a smaller, lighter motor can do the work of a larger one that spins more slowly.



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