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  • Racecar Engineering

    In-wheel motors

    Oct 01, 2021 3 minutes
    Having the motors in the wheels emphatically does not reduce pitch or roll, or improve vehicle dynamics

    Q The latest Automotive Engineering has an article touting the merits of electric motors built into the wheels of a vehicle, called in-wheel motors (IWM). The author, who appears to have impressive credentials, makes some claims that raised my eyebrows, and on which I would like your opinion:

    1. Unsprung weight is not as big a problem as people suppose, because of modern advances in suspension design.

    2. Having the motors built

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