Robert Boschgmbh

Ronald Bosch Gmbh

Christof Bernauer

Matthias Henschel

Peter Nolting

Hans-Juergen Oberle

Wolfgang Krauth

Peter Braun

Wolfgang Scheidel

Franz Schwendemann

Gerald Kuenzel

Thomas Bertolini

Otto Brass

Reuben Agnon

Josef Foerstera

Dieter Scheer

Uwe Merkelbach

Peter Froehlich

Rolf Baumann

Christoph Eitel

Alfred Maier

Wofgang Krauth

An electric motor for actuators in a motor vehicle has an armature shaft, which is supported in a pole housing that includes a jacket and a bearing cover on at least on one end face for accommodating a bearing for the armature shaft, and at least one radial recess is formed in the pole housing, which, once the pole housing has been fully assembled, is suitable for engagement by at least one radial fastening segment of a transmission interface in the pole housing, in order to attach the electric motor to the transmission interface.

Electric motor housing with transmission drive unit interface

Rotors or stators of this kind are cut out from rolled sheet metal with a predominant magnetic direction and are stacked to form a rotor or stator lamination bundle. In order to largely compensate for a magnetic anisotropy of the rotor or stator lamination packet, when the sheet metal blanks are asymmetrical (A, B), they are cut out from the rolled sheet metal rotated in relation to one another with regard to the predominant magnetic direction. The process according to the invention can be used for electric machine rotors or stators comprised of sheet metal blanks.

Process for manufacturing a rotor or stator of an electric machine out of sheet metal blanks

A low-noise, torque compensated motor with an electrically commutated stator and a permanent magnet rotor which is achieved solely through a spacing of the air gap surfaces of the stator if these surfaces are at least partially provided with fine gearing teeth and pole pairs are formed in which at least part of the fine gearing teeth are respectively offset in relation to one another.

Motor with an electrically commutated stator and a rotor with permanent magnets

An electronically commutated motor includes a stator carrying a plurality of winding strands and a rotor in which the individual winding strands are controlled via power amplifiers in staggered periods of time, the periods being subdivided into control time and idle time. To reduce the power loss in the power amplifiers and to increase the efficiency in the range of high currents, that the control times are subdivided into an initial time segment and a final time segment. At low motor currents pulsing occurs only in the initial or final time segments in pulse width modulation, while at high currents complete switching through takes place in the initial time segments and additionally in the final time segment for a more or less long period of time or in the final time segments and additionally in the initial time segments for a more or less long period of time.

Electronically commutated motor

An electronically commutated motor is described that has a stator, carrying at least two winding phases, multiple magnet poles and grooves and a rotor, in which a defined position between the rotor and the stator can be detected by way of a position sensing device. A rotation speed and power output of the motor can easily be influenced by the fact that the magnet poles have regions with air gaps of different heights from the rotor; and that onset times of a temporally successively occurring energization of the at least two winding phases can be varied in terms of the position between the rotor and the stator and/or the energization duration of the at least two winding phases.

Drive device for a movable part that can be displaced between end

Retaining device for an electric motor

Growing community of inventors

Forbach, Germany

Christof Bernauer