Abstract: A method for determining the position of the rotor of a multiphase electric machine with pole windings, the inductances of which are uniquely connected to the rotational angular position of the rotor in the currentless state at least within rotational angular periods. At least one measurement point between pole windings, a measurement signal which depends on the current inductances of the pole windings and which is generated by voltage jumps at a phase conductor input is tapped. Multiple measurement points are provided for tapping a signal, the measurement points being arranged collectively at one and the same phase conductor. For each measurement point, the respective phase conductor with the lowest current operating current is selected.

Abstract: An apparatus for determining the position of the rotor of an electric machine in relation to the stator. The machine has multiple phases, each of which includes at least one pole winding with a magnetizable core. The apparatus includes devices for detecting measurement signals that are characterized by the momentary degrees of magnetization of the pole winding cores. The degrees of magnetization are influenced by the angular position of the magnetic field of the rotor. The devices are also used to detect the currents in the phases and determine the angular position of the rotor from the detected measurement signals, taking into account a contribution of the phase currents to the degrees of magnetization of the pole winding cores.

Abstract: A vehicle, in particular a vehicle to be propelled by muscular energy. The vehicle includes devices for compensating for forces acting on the vehicle in or against the direction of travel as a result of deviations from defined operating conditions.

Abstract: A device, in particular a vehicle, intended to be moved by muscle force, including an electric machine, which influences the movement of the device in addition to the muscle force and which produces an additional force, at least one sensor for measuring the muscle force acting on the device, and apparatuses for controlling the production of the additional force by the electric machine on the basis of the measurement signal of the sensor. The apparatuses for controlling the production of the driving and/or braking force include a load device for converting electrical energy produced by the electric machine operating as a generator into another form of energy, in particular heat.

Abstract: A drive with a motor and devices for coupling the motor to a driving object. The coupling devices include a centrifugal mass which is movable by the motor, and an impact stop, which is connected to the driving object, for the centrifugal mass.

Abstract: A vehicle, particularly a bicycle, including a crank drive that is to be actuated by muscular force and that is disconnectably drive-connected to at least one driven wheel, and also including an electrical auxiliary drive for assisting the crank drive. The vehicle can be driven solely by the auxiliary drive when the drive connection between the crank drive and the wheel is disconnected. In addition, a control device for the auxiliary drive is preferably connected to a sensor which detects the crank rotational speed.

Abstract: A method for determining the position of the rotor of an electric machine having multiple phases in relation to the stator. The change ?? in the time derivative ? of the current I flowing through at least one of the power inputs is determined. The change ?? is caused by a change ?U in the potential U on at least one of the power inputs of the electric machine. A measurement signal that is representative of a position of the rotor is determined from multiple simultaneously or successively determined changes ??.

Abstract: A method for determining the rotary position of the rotor of an electric machine, which includes star-connected phase conductors, wherein a measurement signal representing the rotary position of the rotor within a magnetic half-period is determined from the potential at the star point. At a measurement time a specified voltage is applied to the ends of all the phase conductors by forcing the star point to a specific potential. At a time following the measurement time a voltage that deviates from the specified voltage is applied to the ends of one of the phase conductors. Then the measurement signal is derived from the current that develops from the measurement time in a connection of the star point to the specified potential.

Abstract: An apparatus for determining the position of the rotor of an electric machine in relation to the stator, wherein the electric machine has at least three winding phases, which each have at least one pole winding with a magnetizable core, with devices for detecting a measurement signal. The instantaneous degrees of magnetization of the pole winding cores influenced by the magnetic field of the rotor, depend on the position of the rotor. The devices for detecting the measurement signal for tapping off the measurement signal are provided exclusively outside the electric machine at connecting conductors used for energizing the electric machine. Preferably, switching devices for temporarily isolating at least one of the connecting conductors from an operating voltage source are provided, wherein the measurement signal can be tapped off at the connecting conductor which has been isolated from the operating voltage source.

Abstract: A device, in particular a vehicle, intended to be moved by muscle force, including an electric machine, which influences the movement of the device in addition to the muscle force and which produces an additional force, at least one sensor for measuring the muscle force acting on the device, and apparatuses for controlling the production of the additional force by the electric machine on the basis of the measurement signal of the sensor. The apparatuses for controlling the production of the driving and/or braking force include a load device for converting electrical energy produced by the electric machine operating as a generator into another form of energy, in particular heat.

Abstract: A device for determining a position of a movable, magnetizable and/or conductive body relative to a stator that has at least one pole winding. Apparatuses are provided for detecting a measurement signal that depends on the inductance of the pole winding, wherein the inductance is influenced by the position of the body.

Abstract: A vehicle, particularly a bicycle, including a crank drive that is to be actuated by muscular force and that is disconnectably drive-connected to at least one driven wheel, and also including an electrical auxiliary drive for assisting the crank drive. The vehicle can be driven solely by the auxiliary drive when the drive connection between the crank drive and the wheel is disconnected. In addition, a control device for the auxiliary drive is preferably connected to a sensor which detects the crank rotational speed.

Abstract: A method for determining the position of the rotor of an electric machine having multiple phases in relation to the stator. The change ?i in the time derivative I of the current I flowing through at least one of the power inputs is determined. The change ?i is caused by a change ?U in the potential U on at least one of the power inputs of the electric machine. A measurement signal that is representative of a position of the rotor is determined from multiple simultaneously or successively determined changes ?i.

Abstract: An arrangement of an actuator and an actuator holder. The actuator is movably connected to the actuator holder, and devices are provided for supplying the actuator with operating energy. The devices for supplying the actuator with operating energy include an energy store integrated into the actuator. The actuator is preferably movable relative to the actuator holder in at least one dimension in an unrestricted manner.

Abstract: A torque sensor comprises a freewheel with a first rotating element for transferring a torque to be determined to a second rotating element which is coaxial to the first rotating element, the transfer occurring in one rotational direction, and devices for determining a rotation of the first rotating element relative to the second rotating element in said rotational direction and for determining the torque using the determined relative rotation.

Abstract: A method for determining the rotary position of the rotor of an electric machine, which includes star-connected phase conductors, wherein a measurement signal representing the rotary position of the rotor within a magnetic half-period is determined from the potential at the star point. At a measurement time a specified voltage is applied to the ends of all the phase conductors by forcing the star point to a specific potential. At a time following the measurement time a voltage that deviates from the specified voltage is applied to the ends of one of the phase conductors. Then the measurement signal is derived from the current that develops from the measurement time in a connection of the star point to the specified potential.

Abstract: An apparatus for determining the position of the rotor of an electric machine in relation to the stator, wherein the electric machine has at least three winding phases, which each have at least one pole winding with a magnetizable core, with devices for detecting a measurement signal. The instantaneous degrees of magnetization of the pole winding cores influenced by the magnetic field of the rotor, depend on the position of the rotor. The devices for detecting the measurement signal for tapping off the measurement signal are provided exclusively outside the electric machine at connecting conductors used for energizing the electric machine. Preferably, switching devices for temporarily isolating at least one of the connecting conductors from an operating voltage source are provided, wherein the measurement signal can be tapped off at the connecting conductor which has been isolated from the operating voltage source.

Abstract: Disclosed is an electric drive, particularly for a pivoting arm, such as a robotic arm, comprising a rotor, a plurality of magnetic periods and a device for determining the rotational position of the rotor based on at least one measurement signal, which is indicative of the inductance of a pole winding strand that is dependent on the position of the pole winding strand relative to the magnetic periods. The electric drive according to the invention that solves this problem in that two coupled rotor parts, which can be jointly rotated at a rotational angle ratio in relation to each other that is fixed, and assemblies comprising magnetic periods and pole winding strands are provided, the assemblies being separate for the rotor parts, wherein the numbers of the magnetic periods for each rotor part are co-prime, and the device for determining the rotational position of the rotor is provided for determining the position from the measurement signals for the two rotor parts.

Abstract: A drive with an electric machine which can be operated as a motor for generating a positive drive force and as a generator for generating a negative drive force (braking force), a rechargeable battery, which supplies power to the electric machine in the motor operating mode and can be recharged by the electric machine in generator operating mode, and devices including a load resistor for limiting the charging of the rechargeable battery. The limiting devices also have devices for generating a flow which dissipates heat upstream of the load resistor.

Abstract: A process for determining the position, in particular the angular position, of the rotor of an electric machine in relation to the stator. A first measured value of the position is determined according to a first method. Another measured value is simultaneously determined according to at least one other measurement method, and a mean value for the position of the rotor is determined from the measured values. Preferably, the mean value is determined taking into account weighting factors that take into consideration different spreads of the measured values.