Abstract: The invention relates to a wheel provided with electric driving means in the wheel, control, measuring and operating means in the wheel for operating the electric driving means and data communication means in the wheel. Additionally the invention relates to a method for coordinating at least two of such wheels attached to one vehicle. Additionally the invention relates to a wheel strut provided with vehicle attachment means for attaching the wheel strut to a vehicle, and wheel attachment means for attaching a wheel to the wheel strut, in which the wheel attachment means are rotatable about the longitudinal axis with respect to the vehicle attachment means and in which the wheel strut is provided with driving means for rotating the wheel attachment means. The invention also relates to a wheel according to the invention provided with a wheel strut according to another aspect of the invention.

Abstract: The invention relates to a wheel provided with electric driving means in the wheel, the electric driving means comprising a rotor and a stator coaxially within the rotor and connectable to a vehicle, with an air gap provided between said rotor and said stator, wherein said wheel is provided with an air gap controlling bearing.

Abstract: A traction assembly includes a wheel comprising a wheel shaft and traction means which, when in operation, exert torque on the wheel shaft, wherein the traction ratio, being the arm of the torque divided by the size of the radius of the wheel, is larger than 0.57. This makes an increased efficiency possible. In addition to an increased efficiency of the motor itself, this creates the above described side effects as a result of which relatively, a considerably larger improvement of the efficiency occurs than what could be expected from improving the efficiency of the engine only.