Importance

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Abstract

In at least some implementations, a method of determining rotational inertia of a vehicle wheel is accomplished by applying torque to the wheel and determining a rotational characteristic of the wheel resulting from the applied torque. The method includes the steps of applying torque at a first level to a wheel, determining one or more rotational speeds of the wheel caused by the torque at the first level, applying torque at a second level to the wheel, where the second level is different than the first level, determining one or more rotational speeds of the wheel caused by the torque at the second level, and determining a rotational inertia of the wheel as a function of the one or more rotational speeds of the wheel caused by both the torque at the first level and the torque at the second level.

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First Claim