Maxon Motor Ag

Mathis Trachsel

Hugo Fritschy

Max Erick Busse-Grawitz

Raniero Pittini

David Ramon

Franz-Xaver Fölmli

Chen Zhao

The present invention provides a sensor arrangement. The signal from the sensor is used to control an auxiliary motor of a vehicle propelled by muscular strength. The auxiliary motor is there integrated into a wheel hub unit of the vehicle. The wheel hub unit comprises a stationary axle and a hub rotatably mounted to the axle. According to the invention, the assembly comprises the sensor and a freewheel of the drive train, which is propelled by muscular strength, mounted rotatable relative to the axle, where the sensor is arranged such that it detects a rotational motion of the freewheel relative to the axle.

Sensor arrangement for controlling an auxiliary motor and a wheel hub unit with such a sensor arrangement

The invention relates to an electric wheel hub drive for a vehicle, in particular a bicycle. The wheel hub drive comprises a hub housing that is pivot-mounted about an axis and a brushless electric motor coaxially arranged with regard to the axis and including a rotor and a stator for driving the hub housing. The rotor of the electric motor includes at least one permanent magnet. According to the invention, the stator includes an ironless stator winding.

Electric wheel hub drive for a vehicle, in particular a bicycle, including a stator with an ironless hollow cylindrical stator winding

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Lucerne, Switzerland

Mathis Trachsel