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公开(公告)号：US20250070699A1
公开(公告)日：2025-02-27
申请号：US18726418
申请日：2022-12-14
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Zhengtao Lv
Abstract: A control method and control module for a permanent magnet synchronous motor is disclosed. The control method comprises the following steps: obtaining a motor rotational speed, a first difference value between an actual quadrature-axis current iq and a target quadrature-axis current iq_Ref, and a second difference value between an actual direct-axis current id and a target direct-axis current id_Ref; determining whether or not the motor rotational speed is greater than or equal to a preset rotational speed threshold value; and adjusting a direct-axis voltage Ud according to the first difference value and adjusting a quadrature-axis voltage Uq according to the second difference value when the motor rotational speed is greater than or equal to the rotational speed threshold value. The control method can take into account the motor rotational speed to selectively adjust the quadrature-axis voltage Uq and the direct-axis voltage Ud on the basis of the quadrature-axis current iq or the direct-axis current id such that the fluctuation of the target quadrature-axis current iq and the actual direct-axis current id at any motor rotational speed is small.
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公开(公告)号：US12237722B2
公开(公告)日：2025-02-25
申请号：US17639756
申请日：2020-07-09
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Wilfried Schwenk , Michael Schlosser , Patrick Wisbar
Abstract: A laminated rotor core for a rotor of a permanently excited electric machine and to a method for producing same are provided. The laminated rotor core consists of a plurality of stacked lamination rings, each lamination ring consisting of a plurality of circular segments. Each circular segment has multiple receiving openings, which are arranged in a V-shaped manner relative to each other in pairs, for permanent magnets and multiple passages for respective fixing elements. The laminated rotor core is mounted on a holding disc using the fixing elements, which run in the passages of the laminated rotor core.
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公开(公告)号：US20250050401A1
公开(公告)日：2025-02-13
申请号：US18718225
申请日：2022-11-23
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Sebastian Zwahr , Richard BAIER , Andreas POPP , Torsten Keller , Harry SCHMEIKO , Doris SCHMIDGALL , Jan KRAEMER
IPC: B21D13/02 , H01M8/0206 , H01M8/0254 , H01M8/026
Abstract: The invention relates to a method for embossing a channel structure (3) comprising a plurality of parallel channel portions (5) in a planar metal sheet (11) to form a half-plate (2, 2′), in particular for a bipolar plate (1) of an electrochemical cell, said method having the following steps: providing the planar metal sheet (11) with a uniform initial wall thickness (d5), inserting the metal sheet (11) into a forming tool (12), wherein a base plane (BE) of the sheet (11) defined by the undeformed planar metal sheet (11) is provided to rest on a tool plane defined by a tool part (13) of the forming tool (12), forming the plurality of channel portions (5), each channel portion (5) being designed with two non-parallel flanks (7, 8) in such a way as to allow material from embossing portions (9, 10) of the metal sheet (11), which are located outside the flanks and remain in the base plane (BE) and/or a plane parallel thereto throughout the entire forming process, to be displaced into the flanks (7, 8), each flank (7, 8) extending from the base plane (BE) to an adjacent parallel plane.
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公开(公告)号：US12220964B2
公开(公告)日：2025-02-11
申请号：US18105788
申请日：2023-02-03
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Brian Lee
IPC: B60G21/055
Abstract: A sway bar disconnect assembly for a motor vehicle includes a first bar segment for being connected to a first wheel, a second bar segment for being connected to a second wheel, and a disconnect clutch configured for being selectively movable between a connect orientation in which the disconnect clutch non-rotatably fixes the first bar segment and the second bar segment together and a disconnect orientation in which the disconnect clutch rotationally decouples the first bar segment and the second bar segment from each other. The disconnect clutch includes a first clutch section non-rotatably fixed to the first bar segment and a second clutch section non-rotatably fixed to the second bar segment. The first clutch section includes axially displaceable male connectors and the second clutch section includes female connectors shaped for receiving the male connectors in the connect orientation. The disconnect clutch also includes an axially movable disconnector configured for axially contacting the male connectors, and an actuator configured for axially moving the disconnector to force the male connectors out of engagement with the female connectors causing the disconnect clutch to enter into the disconnect orientation.
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公开(公告)号：US20250043860A1
公开(公告)日：2025-02-06
申请号：US18717707
申请日：2022-11-07
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marc HELFER , Felix VOGEL
IPC: F16H57/04
Abstract: The invention relates to a drive system comprising a drive unit having a drive housing. The invention also relates to a drive transmission which comprises the drive system. The drive system comprises: a drive unit (1) having a drive housing (20); and a flow guide element (40) which is mechanically fixed to the outside of the drive housing (20) and which has at least a first cavity boundary (42) for forming at least regions of a first fluid reservoir (44), wherein a first cavity (43) that is delimited at least in regions by the first cavity boundary (42) is or can be fluidically connected to a lubrication device (60). The drive system proposed herein and the drive transmission comprising the drive system provide a means which can be used to lubricate connected or integrated transmission components in a straightforward, cost-effective and space-saving manner.
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Patent Agency Ranking
公开(公告)号：US12203502B2
公开(公告)日：2025-01-21
申请号：US18079131
申请日：2022-12-12
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Dennis Roffe , James Brown
IPC: F16C23/06 , F16C35/067 , F16C43/04
Abstract: An improved configuration for a bearing housing assembly is disclosed herein in which a ring can be configured to be secured in at least two positions such that the bearing assembly positioned inside of the housing can be retained in either a fixed state or a floating state. The ring can be configured to be secured at least partially within the housing in at least a first configuration and a second configuration, such that: (i) the ring is configured to abut the bearing assembly in the first configuration such that the bearing assembly is axially fixed relative to the housing, and (ii) the ring is configured to be spaced apart from the bearing assembly in the second configuration such that the bearing assembly is axially displaceable within the housing.
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7.发明申请公开(公告)号：US20250019002A1
公开(公告)日：2025-01-16
申请号：US18712762
申请日：2022-10-27
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Johannes Reinschke
Abstract: The disclosure relates to an electric steering device for controlling a vehicle, that includes a rotation angle encoder, a steering wheel, an electric motor, connected with mechanical action to the steering wheel, a steering actuator arranged at a road end, and a control unit. A steering movement of the steering actuator is controlled via the control unit when a rotational input is made on the steering wheel. Haptic feedback relating to a driving state is introduced into the steering wheel via the electric motor on the basis of a transmission function stored in the control unit and on aggregated information about a road-end steering state on the steering actuator. The aggregated information contains first comparison information, determined in a prediction device, for the road-end steering state depending on driving state information about the vehicle. The disclosure also relates to a vehicle, in particular a motor vehicle.
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公开(公告)号：US12196301B2
公开(公告)日：2025-01-14
申请号：US18545075
申请日：2023-12-19
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Michael Hodge , David Burky
Abstract: A housing half for a stamped steel differential housing including an outer annular ring and a radially outer cylindrical protrusion with a gear portion. The housing half is integrally formed from a single piece of material. In an example embodiment, the housing half is formed by stamping. In an example embodiment, the gear portion is formed by broaching or rolling. In some example embodiments, the housing half also includes a first pocket arranged for receiving a portion of a first end of a pinion pin and a second pocket, circumferentially opposite the first pocket, arranged for receiving a portion of a second end of the pinion pin. A stamped steel differential housing including the housing half and a stamped steel differential assembly including the stamped steel differential housing are also disclosed.
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公开(公告)号：US12196274B2
公开(公告)日：2025-01-14
申请号：US17766310
申请日：2020-09-30
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Michael Kastner , Andreas Goetz , Eugen Bauer
Abstract: The disclosure relates to a belt pulley decoupler for transmitting torque between the belt of a belt drive and a shaft in driving connection therewith. The belt pulley decoupler includes: a hub fastened to the shaft, a belt pulley rotatably mounted on the hub, a helical torsion spring arranged in a torque flow path between the belt pulley and the hub, a first spring plate extending in the torque flow path on a side of the belt pulley, and a second spring plate rotationally fixed to the hub.
The hub has an imbalance which compensates for an imbalance of the helical torsion spring resulting from a ground portion of the spring ends in such a way that the following relationship applies for the spring imbalance {right arrow over (U)}s and the hub imbalance {right arrow over (U)}b: |{right arrow over (U)}s+{right arrow over (U)}b|-
公开(公告)号：US12196234B2
公开(公告)日：2025-01-14
申请号：US18265670
申请日：2021-11-09
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： David Huber
IPC: F15B15/14 , F16J15/16 , F16J15/3232 , F16J15/3268 , F16D25/12 , F16H61/30 , F16H63/30
Abstract: A seal assembly includes a piston and a seal. The piston includes a first radial piston wall, a second radial piston wall extending radially further than the first radial piston wall, a groove formed between the first radial piston wall and the second radial piston wall, and a bypass line extending at least partially around the groove. The seal disposed in the groove. The seal includes a first sealing lip extending radially outward beyond the second radial piston wall and a second sealing lip. The second sealing lip is sealed against the first radial piston wall to seal an entry space when acted on by a pressure below a predetermined pressure limit pG, and pivotable radially inward to open the entry space when acted on by a pressure above the predetermined pressure limit pG.
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