Patents Assigned to Sew-Eurodrive GmbH & Co. KG
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Patent number: 11722076Abstract: In a drive system and method for operating a drive system, in which the drive systems includes an electromagnetically operable brake, an electric motor, e.g., a three-phase motor, and an electronic circuit, the brake has an energizable coil, e.g., a brake coil, the electronic circuit has a rectifier, an upper controllable semiconductor switch, a freewheeling diode, and a varistor, a direct voltage provided by a rectifier is able to be made available by closing or by a pulse-width-modulated actuation of an upper controllable semiconductor switch of the coil, and by opening the upper controllable semiconductor switch, a current driven by the coil in the de-excitation of the coil is freewheeling and/or flowing through the freewheeling diode and the varistor or through a component connected in parallel with the varistor.Type: GrantFiled: January 13, 2020Date of Patent: August 8, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Timo Hufnagel, Hans Jürgen Kollar, Christopher Reichert
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Patent number: 11718199Abstract: A vehicle, in particular a logistics vehicle, includes a frame and a housing component secured in place thereon. An insert part on the housing component is insertable into a space region of the vehicle, and a first or a second energy store module is situated on the insert part and a DC/DC converter which is electrically connected to the energy store module.Type: GrantFiled: November 1, 2022Date of Patent: August 8, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventor: Christopher Blickle
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Patent number: 11720508Abstract: In a method for the emergency shutdown of a bus system, and a bus system, having a master module and bus subscribers disposed in series, the master module and the bus subscribers sending data packets to one another with the aid of a data line, the method has the temporally consecutive method steps: in a first method step, a bus subscriber and/or the master module detect(s) an error status, in a second method step, the bus subscriber and/or the master module send(s) an emergency signal to all bus subscribers and to the master module, in a third method step, a further bus subscriber receives the emergency signal, immediately forwards it to an adjacent bus subscriber and simultaneously evaluates it, and in a fourth method step, the further bus subscriber shuts itself down automatically.Type: GrantFiled: February 15, 2022Date of Patent: August 8, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventor: Manuel Fuchs
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Publication number: 20230235816Abstract: A drive includes a housing, an adapter plate, and a cover hood. A flat support surface is provided on the housing, e.g., for placement of the cover hood, and the adapter plate is attached to the housing. A first sealing ring, e.g., an O-ring, is received on the outer circumference of the adapter plate and is arranged between the cover hood and the cover plate, e.g., for sealing. A second sealing ring, e.g., an O-ring or a flat sealing ring, is received and/or attached to the side of the adapter plate facing the support surface, and the second sealing ring is arranged between the adapter plate and the support surface, e.g., for sealing.Type: ApplicationFiled: May 18, 2021Publication date: July 27, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Roland DENEFLEH, Stefan KUTSCH
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Publication number: 20230228650Abstract: A drive includes an electric motor and a first gearbox that can be driven by the electric motor. An output shaft of the first gearbox is connected rotation-fast to a first shaft by a coupling, e.g., a rigid shaft coupling, and the first shaft is mounted by an axial bearing, e.g., a single axial bearing, that can be subjected to a force by at least one controllable first linear actuator.Type: ApplicationFiled: May 18, 2021Publication date: July 20, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventor: Lech BANASIK
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Patent number: 11695362Abstract: In a method for monitoring the operation of an electric motor and a lifting mechanism, the motor current is acquired, and the electric motor has, for example, an electromagnetically actuable brake, e.g., a holding brake. In the method, a pre-magnetization is performed when the electric motor is switched on, the characteristic of the acquired values of the motor current is monitored for an exceeding of a permissible measure of deviation from a setpoint characteristic, and a brake of the electric motor is activated, e.g., remains applied.Type: GrantFiled: September 12, 2019Date of Patent: July 4, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Thomas Schuster, Robert Becker
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Publication number: 20230192406Abstract: In a method for operating a technical plant, which includes a work area for producing ready-to-ship products from delivered goods and a plurality of load carriers, each including a control, a drive connected to the control, and a communication interface, for transporting goods and for transporting products, goods are delivered to the technical plant, delivered goods are transported into the work area by the load carriers, products are produced in the work area from the goods transported into the work area, produced products are transported out of the work area by the load carriers, and products transported out of the work area are shipped out from the technical plant. A technical plant, which includes a work area for producing ready-to-ship products made from delivered goods, is operable using the method.Type: ApplicationFiled: April 20, 2021Publication date: June 22, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Josef SCHMIDT, Frank SCHÖNUNG, Patrick WEIS, Michael ANGST, Alexander FUCHS, Tanja WALZ
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Patent number: 11682991Abstract: In a method for determining the rotor position of a three-phase machine without using a rotary encoder, and to a device for controlling a three-phase motor without using a rotary encoder, the three-phase machine is fed by a converter that can be operated by pulse-width modulation, and the converter has model variables for the rotor angle and the current indicator of the three-phase machine, and the converter has device(s) by using which, in control operation, at least two values are measured which represent a measure of the local inductances of the machine which represent a measure of the local inductances of the machine, the error of the model rotor angle is determined in that, depending on the model rotor angle and the model current indicator, at least two weighting factors are determined, and in that a weighted sum is formed from the at least two measured values and the at least two weighting factors, and in that a further offset value is substracted from the sum, which is likewise determined on the basisType: GrantFiled: January 3, 2022Date of Patent: June 20, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Wolfgang Hammel, Harald Wolf
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Patent number: 11678281Abstract: In a method for operating a system for intralogistic transport and system, the system having subscribers, in particular vehicles, which are connected via a data transmission channel such that each subscriber is a subscriber of a group of subscribers connected for data transmission via the data transmission channel, the data transmission being in particular not real-time capable, the data transmission channel being in particular a WLAN connection, each subscriber having a time base, in particular a clock, a group is formed; the time base of each subscriber of the group is synchronized, that is, in particular the time of the time base of the subscriber modified by a specific time offset by the synchronization is used as the time for operation; and subscribers are moved in dependence on a respective subscriber functioning as a master or in mutual dependence, in particular the position activated by the respective subscriber, in particular at the respective point in time, depending on the respective position of atType: GrantFiled: September 27, 2021Date of Patent: June 13, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventor: Roland Brecht
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Patent number: 11677271Abstract: A load includes a device for inductively powering it, the device including an insertion part, following the insertion of which into the load the powering of the latter is provided.Type: GrantFiled: December 9, 2015Date of Patent: June 13, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventor: Josef Schmidt
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Patent number: 11674557Abstract: A brake assembly for an electric motor includes: a magnetic body, a winding, a bolt, a housing part with a brake surface, an armature disk, a brake pad plate, a shaft, a spring part, and a first bushing. The housing part is connected to the magnetic body by the bolt, with a positive fit in at least the circumferential direction. The first bushing is accommodated in a second bushing. The spring part supported on the housing part presses the first bushing and/or the second bushing toward the magnetic body. The radial clearance range covered by the armature disk includes the radial clearance range covered by the second bushing, and the axial region covered by the armature disk includes the axial region covered by the second bushing.Type: GrantFiled: April 25, 2019Date of Patent: June 13, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Gerolf Fichtner-Pflaum, Florian Rieger
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Publication number: 20230166793Abstract: A mobile transport system includes a drive unit having a first drive wheel rotatable about a first drive axis and a second drive wheel rotatable about a second drive axis, the drive axes extending in a transverse direction. The drive unit includes a swivel and a drive frame. The drive frame is pivotable about a steering axis relative to the swivel. The drive unit includes a marking carrier that is disposed in a stationary manner relative to the drive frame, and on which optically detectable markings are applied. The drive unit includes a camera for detecting the markings and is disposed in a stationary manner relative to the swivel.Type: ApplicationFiled: April 15, 2021Publication date: June 1, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Dirk DEGEN, Josef SCHMIDT, Alexander JUNGINGER, Gero BOCKELMANN, Andreas TUSKAN, Jan-Patrick KÖDDERITZSCH, Frank ERB
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Publication number: 20230166954Abstract: A mobile transport system includes a vehicle frame, first and second pairs of support wheels, first and second drive wheels, and a swing frame. A drive unit including a drive frame is disposed on the swing frame. The first drive wheel is rotatably supported on a first swing arm, and the second drive wheel is rotatably supported on a second swing arm. The first and second swing arms are coupled to each other by a coupling unit, such that a pivot motion of the first swing arm about a first swing axis in a first pivot direction brings about a pivot motion of the second swing arm about a second swing axis in a second pivot direction oriented opposite to the first pivot direction.Type: ApplicationFiled: February 18, 2021Publication date: June 1, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Josef SCHMIDT, Andreas TUSKAN
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Patent number: 11662014Abstract: A gear unit includes a housing, a trough for guiding oil and reducing losses due to splashing surrounding a circumferential section of a toothing part, particularly a gear wheel, especially in the radial and axial direction, the trough including at least three parts, e.g., at least one bottom plate and two side walls, the bottom plate being screw-connected to the two side walls, the trough being fastened to the housing, the trough having an opening, particularly a channel, especially at its lowest surface area, e.g., particularly at the surface area having the greatest radial distance, in particular, during rotational movement of the gear wheel, oil being conveyed from the oil pan of the gear unit through the opening between the trough and gear wheel, especially to a position higher than the level of the oil pan, the bottom plate and the side walls being stamped bent parts.Type: GrantFiled: March 2, 2021Date of Patent: May 30, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventor: Zili Wu
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Patent number: 11658560Abstract: In a system for feeding a DC link and a method for operating the system, a sensor for detecting a current in the DC link or voltage on the DC link is connected to a controller, which activates a second converter, e.g., a DC/DC converter or current controller. A first energy storage device is connected via the second converter to the DC link, and the controller activates a third converter, e.g., a DC/DC converter or current controller. A second energy storage device is connected via the third converter to the DC link, and the first and the second energy storage devices are different, e.g., have a different dynamic behavior and/or different discharge time constants.Type: GrantFiled: June 17, 2020Date of Patent: May 23, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Patrick Schmich, Simon Zeller
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Publication number: 20230150350Abstract: A mobile transport system includes a vehicle frame, first and second pairs of support wheels, first and second drive wheels, and a swing frame pivotable about an swing axis relative to the vehicle frame. The first support wheels are disposed on the vehicle frame, and the second support wheels are disposed on the swing frame. A drive unit including a drive frame is disposed on the swing frame. The first drive wheel is rotatably supported on a first swing arm pivotable about a first swing axis relative to the drive frame, and the second drive wheel is rotatably supported on a second swing arm pivotable about a second swing axis relative to the drive frame. The drive frame is pivotable about a steering axis relative to the swing frame.Type: ApplicationFiled: February 18, 2021Publication date: May 18, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Josef SCHMIDT, Andreas TUSKAN, Jan-Patrick KÖDDERITZSCH, Gero BOCKELMANN
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Patent number: 11652387Abstract: An electric motor includes a rotor having a rotor shaft part and a first shaft part and a second shaft part. The rotor shaft is situated axially between the first and the second shaft parts. The first shaft part includes a first bearing seat and is connected to the rotor shaft part in a torsionally fixed manner, and the second shaft part includes a second bearing seat and is connected to the rotor shaft part in a torsionally fixed manner.Type: GrantFiled: December 27, 2021Date of Patent: May 16, 2023Assignee: SEW-EURODRIVE GMBH & CO. KGInventors: Michael Stark, Klaus Müller, Bernhard Winter
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Publication number: 20230143663Abstract: A bearing assembly includes a shaft, a first bearing, and a nut. The nut has a thread, which is screwed onto a threaded region formed on the shaft, and a bearing seat formed on the shaft adjoins the threaded region. The inner ring of the first bearing contacts the bearing seat, and the nut contacts the inner ring of the first bearing. The inner ring of the first bearing is arranged spaced apart from the threaded region of the shaft. A runout region of a thread cut into the threaded region of the shaft is arranged in a subsection of the bearing seat adjoining the threaded region.Type: ApplicationFiled: December 1, 2020Publication date: May 11, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Ermalt LAMAJ, Jens BLÖMEKE, Norbert SCHNEIDER, Thomas HUBER, Markus LUTZ, Sven WURZER
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Publication number: 20230127352Abstract: In a method for producing a product in a technical plant, after receipt of an order for producing the product, components necessary for producing the product are identified, and work steps necessary for producing the product are identified. Identified components and work steps are entered in a product file stored on a transport system. The components entered in the product file are acquired by the transport system, which is documented in the product file, and the work steps entered in the product file are executed, which is documented in the product file. The product file remains on the transport system until the acquisition of each component and the execution of each work step are documented in the product file. A technical plant for producing a product, is adapted to execute the method and includes a transport system having a digital data memory for storing the product file.Type: ApplicationFiled: February 4, 2021Publication date: April 27, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Josef SCHMIDT, Gero BOCKELMANN, Frank SCHÖNUNG, Alexander FUCHS, Tanja WALZ
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Publication number: 20230120461Abstract: A mobile transport system for transporting objects in a technical system, includes a vehicle frame, a first wheel pair, a second wheel pair, and a third wheel pair, each having two wheels rotatable relative to the vehicle frame, and a swing frame pivotable about a swing axis extending in a transverse direction relative to the vehicle frame. The first wheels of the first wheel pair are attached to the vehicle frame, and the second wheels of the second wheel pair are attached to the swing frame. The third wheels of the third wheel pair are attached to a tilt frame pivotable relative to the swing frame about a tilt axis extending approximately in the longitudinal direction.Type: ApplicationFiled: December 17, 2020Publication date: April 20, 2023Applicant: SEW-EURODRIVE GMBH & CO. KGInventors: Friedrich MANZ, Jan-Patrick KÖDDERITZSCH, Theodor DAHL, Joshua Gordon David FRISCH