Patents by Inventor Bernd Wittmann
Bernd Wittmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20220326048Abstract: The present disclosure relates to a sensor assembly for simultaneously capturing an angular position and a torque of a rotatable shaft. The sensor assembly comprises, for determining the angular position, a main body, two additional bodies, which are arranged coupled for rotation on the main body, and two angle resolvers, which are arranged on a circuit board in the immediate vicinity of the additional bodies. In this arrangement, the angles of the additional bodies are determined by the angle resolvers and passed as an angle signal to an evaluation unit arranged on the circuit board. The sensor assembly further comprises a direct coating, which captures a torque signal from the rotating shaft and passes this signal over a connection line to the evaluation unit. The connection line has a section wound multiple times around the shaft to permit a rotation of the shaft by at least +/?900°.Type: ApplicationFiled: July 23, 2020Publication date: October 13, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Thomas Lindenmayr, Bernd Wittmann
-
Publication number: 20220260438Abstract: A steering element sensor assembly for sensing a steering torque and an absolute angular position having a circuit board and first and second sensor elements. The circuit board has a base surface arranged perpendicularly to a steering axis and a wing surface angled to the base. The first sensor element determines the steering torque and has a first primary sensor formed as a magnetically coded portion on the steering element and one secondary sensor for converting the changing magnetic field generated by the primary sensor into an electrical signal. The secondary sensor determines the absolute angular position and a main gear arranged on the steering element that meshes with at least two gears, one which has one more tooth than the other. Each gear has a target that faces a respective angle sensor.Type: ApplicationFiled: June 3, 2020Publication date: August 18, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Matthias HINTZE, Bernd WITTMANN
-
Publication number: 20220212719Abstract: A steering torque sensor assembly includes a magnetically coded steering shaft section, which forms a primary sensor, and a secondary sensor for converting the changes in a magnetic field generated by the primary sensor into an electrical signal. The secondary sensor is situated on a sensor circuit board which runs parallel to the steering shaft section and is positioned opposite the primary sensor.Type: ApplicationFiled: April 20, 2020Publication date: July 7, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Thomas Lindenmayr, Bernd Wittmann, Stephan Neuschaefer-Rube
-
Publication number: 20220214239Abstract: A method test an arrangement for measuring a torque acting on a steering shaft of a motor vehicle. The measurement is carried out using the inverse magnetostrictive effect. The steering shaft has an axis and at least two magnetization areas extending circumferentially around the axis. The arrangement comprises at least four magnetic field sensors for measuring an axial component of a magnetic field caused by the magnetization as well as by the torque. There are at least two combinations of at least two of the magnetic field sensors each, each of which is sufficient to measure the torque. First and second measurement values of the torque are determined with first and second combinations of the magnetic field sensors. The first measurement value and the second measurement value are compared, as a result of which a malfunction of the arrangement can be recognized.Type: ApplicationFiled: April 29, 2020Publication date: July 7, 2022Applicant: Schaeffler Technologies AG & Co. KGInventors: Stephan Neuschaefer-Rube, Thomas Lindenmayr, Bernd Wittmann
-
Patent number: 10041820Abstract: An integration element including a shaft and a housing, wherein the housing includes a passage for the shaft and the shaft includes connecting elements on the shaft ends which are accessible from outside the housing, these elements providing a rotationally-fixed connection to connecting shafts. The housing has at least one connection for fastening to a connection structure and the shaft together with the housing delimits a measuring equipment space for receiving measuring equipment. The housing is formed by at least two housing parts detachably connected to each other, said housing parts being designed to be separated around the full extent of their circumference surrounding the shaft to allow access to the measuring equipment space. The housing has bearing seats for shaft bearings and these shaft bearings support the shaft in a rotatable manner with respect to the housing.Type: GrantFiled: August 12, 2014Date of Patent: August 7, 2018Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Jorg Bauer, Marco Frank, Armin Gerner, Bernd Wittmann, Christian Lehmann, Matthias Sperber
-
Publication number: 20160320215Abstract: An integration element including a shaft and a housing, wherein the housing includes a passage for the shaft and the shaft includes connecting elements on the shaft ends which are accessible from outside the housing, these elements providing a rotationally-fixed connection to connecting shafts. The housing has at least one connection for fastening to a connection structure and the shaft together with the housing delimits a measuring equipment space for receiving measuring equipment. The housing is formed by at least two housing parts detachably connected to each other, said housing parts being designed to be separated around the full extent of their circumference surrounding the shaft to allow access to the measuring equipment space. The housing has bearing seats for shaft bearings and these shaft bearings support the shaft in a rotatable manner with respect to the housing.Type: ApplicationFiled: August 12, 2014Publication date: November 3, 2016Applicant: Schaeffler Technologies AG & Co. KGInventors: Jorg Bauer, Marco Frank, Armin Gerner, Bernd Wittmann, Christian Lehmann, Matthias Sperber
-
Patent number: 9353797Abstract: A bearing ring, in particular of a rolling bearing or a sliding bearing, including a body made of a magnetostrictive material, having a first raceway (2) and a second, axially spaced apart, raceway (2?) and a permanent magnetization (3) which is impressed into the material of the body between the raceways (2, 2?) and which runs around an axis of rotation (9) of the body. According to the invention, the bearing ring achieves the object of improving the structural integration of a torque sensor into a bearing, which torque sensor generates a torque-dependent magnetic field by utilizing the inverse magnetostrictive effect.Type: GrantFiled: August 5, 2013Date of Patent: May 31, 2016Assignee: Schaeffler Technologies AG & Co. KGInventors: Klaus Drescher, Frank Benkert, Philipp Horning, Armin Gerner, Bernd Wittmann, Horst Brehm
-
Publication number: 20150219163Abstract: A bearing ring, in particular of a rolling bearing or a sliding bearing, including a body made of a magnetostrictive material, having a first raceway (2) and a second, axially spaced apart, raceway (2?) and a permanent magnetization (3) which is impressed into the material of the body between the raceways (2, 2?) and which runs around an axis of rotation (9) of the body. According to the invention, the bearing ring achieves the object of improving the structural integration of a torque sensor into a bearing, which torque sensor generates a torque-dependent magnetic field by utilizing the inverse magnetostrictive effect.Type: ApplicationFiled: August 5, 2013Publication date: August 6, 2015Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Klaus Drescher, Frank Benkert, Philipp Horning, Armin Gerner, Bernd Wittmann, Hurst Brehm
-
Patent number: 8967643Abstract: Split roll stabilizer of a motor vehicle, between the two stabilizer parts (2a) of which an actuator (1) for a torsion of the stabilizer parts (2a) can be effectively disposed, a sensor (11) for determining the torsional moment acting in the stabilizer parts (2a) being provided.Type: GrantFiled: July 22, 2011Date of Patent: March 3, 2015Assignee: Schaeffler Technologies AG & Co. KGInventors: Ralf Mayer, Manfred Kraus, Bernd Wittmann
-
Patent number: 8770603Abstract: A divided roll stabilizer of a motor vehicle between whose two stabilizer parts (2a) an actuator (1) can be arranged for a torsion of the stabilizer parts (2a). At least one of the stabilizer parts (2a) is provided with a torsion transmitting connecting part (4a) for connection to the actuator (1), and the connecting part (4a) is magnetically coded.Type: GrantFiled: June 26, 2012Date of Patent: July 8, 2014Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Bernd Wittmann, Ralf Mayer, Andrea Lottes, Norbert Hofmann
-
Publication number: 20130270786Abstract: Split roll stabilizer of a motor vehicle, between the two stabilizer parts (2a) of which an actuator (1) for a torsion of the stabilizer parts (2a) can be effectively disposed, a sensor (11) for determining the torsional moment acting in the stabilizer parts (2a) being provided.Type: ApplicationFiled: July 22, 2011Publication date: October 17, 2013Applicant: Schaeffler Technologies AG &Co. KGInventors: Ralf Mayer, Manfred Kraus, Bernd Wittmann
-
Publication number: 20130009374Abstract: A divided roll stabilizer of a motor vehicle between whose two stabilizer parts (2a) an actuator (1) can be arranged for a torsion of the stabilizer parts (2a). At least one of the stabilizer parts (2a) is provided with a torsion transmitting connecting part (4a) for connection to the actuator (1), and the connecting part (4a) is magnetically coded.Type: ApplicationFiled: June 26, 2012Publication date: January 10, 2013Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Bernd Wittmann, Ralf Mayer, Andrea Lottes, Norbert Hofmann
-
Publication number: 20120292871Abstract: A roll stabilizer of a motor vehicle including a back (1,9) and legs (3, 14, 15) arranged at opposite ends of the back (1, 9), at an angle in reference to the back (1,9) and with a suspension force (Fz) being transmitted into the ends of the legs facing away from the back (1, 9) to torsion the back (1, 9), and a force sensor (22) is provided to determine the suspension force (Fz).Type: ApplicationFiled: May 16, 2012Publication date: November 22, 2012Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Bernd Wittmann, Ralf Mayer, Jens Heim
-
Patent number: 4855129Abstract: A skin care or skin-protecting composition comprising a highly viscous polydimethylsiloxane which optionally contains OH, vinyl, phenyl or alkyl groups with 2 to 6 C atoms in the terminal and/or middle positions, the polydimethylsiloxane having a viscosity of 10.sup.6 to 5.times.10.sup.7 mPa.s, and a highly volatile, linear or cyclic siloxane.Type: GrantFiled: November 5, 1987Date of Patent: August 8, 1989Assignee: Bayer AktiengesellschaftInventors: Hans-Horst Steinbach, Bernd Wittmann
-
Patent number: 4636413Abstract: A glass block has at least approximately the shape of a sector of a circular cylinder, the side faces forming the sector of the circular cylinder and containing the axis of the cylinder, preferably including an angle of 45.degree. or 90.degree.. The side faces defining the sector of the cylinder and containing the axis of the cylinder are formed with a recess to take up mortar, cement or the like used in bricklaying a wall made of glass blocks.Type: GrantFiled: December 11, 1985Date of Patent: January 13, 1987Assignee: Westerwald AG fur SilikatindustrieInventors: Bernd Wittmann, Eberhard Hayn