Patents by Inventor Steffen Lehmann
Steffen Lehmann 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).
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Patent number: 11465610Abstract: A drive unit for a powertrain of an electrically drivable motor vehicle, in particular a hybrid motor vehicle, is equipped with a first electric machine as well as a second electric machine and a first shaft as well as an output shaft. The drive unit furthermore has a separating clutch and a connection element for connection for conjoint rotation of an internal combustion engine, and wherein at least the first electric machine is operated in generator mode and the nominal rpm n1 of the first electric machine has the following relationship to the nominal rpm n2 of the second electric machine: n1>1.2×n2.Type: GrantFiled: May 29, 2019Date of Patent: October 11, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann
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Patent number: 11440396Abstract: A hybrid module for a motor vehicle for coupling an internal combustion engine, comprises a first drive shaft, a first electrical machine and a first coupling device, as well as a second drive shaft and, associated therewith, a second electrical machine, and a second coupling device; and further comprises an output element, the first or second drive shaft being connectable to the output element by way of a first or second coupling device, wherein the two coupling devices can be simultaneously actuated by a movement of an actuation element which is mechanically coupled to the two coupling devices. The hybrid module disclosed provides a drive device for a motor vehicle that offers energy-efficient operation in a plurality of different operating modes while requiring a small installation space.Type: GrantFiled: February 4, 2019Date of Patent: September 13, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Benjamin Stober, Dierk Reitz, Steffen Lehmann
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Patent number: 11433754Abstract: A hybrid module for a drive train of a motor vehicle comprises a housing, a disconnect clutch, and a hydraulic actuating unit cooperating with the disconnect clutch and received on the housing. The module includes an electric motor, wherein a rotor of the electric motor is rotationally coupled to a clutch component of the disconnect clutch. The actuating unit has a piston element, which is received such that it is displaceable relative to the housing and which, via an actuating bearing, is connected to a pressure element such that it is fixed against displacement in an axial direction of the disconnect clutch yet rotatable relative to the pressure element. The pressure element is configured for engagement and disengagement of the disconnect clutch, and the actuating bearing is formed as an axial needle bearing.Type: GrantFiled: July 3, 2018Date of Patent: September 6, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Jonathan Laigo, Steffen Lehmann
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Patent number: 11401981Abstract: A switching unit for a hybrid module for a drivetrain of a hybrid vehicle is provided. A first clutch is selectively closable to transmit torque from a drive shaft to a first output shaft. A second clutch is selectively closable to transmit torque from the drive shaft to a second output shaft. A plurality of ducts include a cooling oil supply duct, a first cooling oil duct configured to supply cooling oil to the first clutch, and a second cooling oil duct configured to supply cooling oil to the second duct. A switching unit selectively supplies cooling oil to the first and second clutches via the first and second cooling oil ducts, respectively, wherein the switching unit includes a slide having an aperture extending therethrough, and the slide is configured to move to alternatively fluidly the coiling oil supply duct with the first or second cooling oil ducts.Type: GrantFiled: April 12, 2018Date of Patent: August 2, 2022Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Steffen Lehmann, Marc Helfer, Dirk Hofstetter
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Patent number: 11396226Abstract: A hybrid module for a drive train of a motor vehicle includes a dual clutch which has a first sub-clutch and a second sub-clutch for selectively transmitting torque from a first drive unit to a drive shaft. The hybrid module further includes a disconnect clutch for coupling a second drive unit and for transmitting torque from the second drive unit to the drive shaft. At least one rotary feedthrough is provided which is configured on one hand for conveying actuating oil, which is designed for actuation of the disconnect clutch, or on the other hand for conveying cooling oil, which is designed for cooling the disconnect clutch and/or the dual clutch.Type: GrantFiled: July 5, 2018Date of Patent: July 26, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann, Dirk Hofstetter
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Patent number: 11299026Abstract: A drive train for a hybrid motor vehicle comprises a gearbox input shaft, which is operably linked to a first electric machine and an internal combustion engine by a first partial drive train for torque transmission and is operably linked to a second electric machine by a second partial drive train for torque transmission. The second electric machine is permanently connected to the gearbox input shaft for torque transmission. The first electric machine and the internal combustion engine can be connected in a couplable manner to the gearbox input shaft for torque transmission.Type: GrantFiled: October 23, 2018Date of Patent: April 12, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Steffen Lehmann, Andreas Trinkenschuh
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Patent number: 11214242Abstract: A drive train for a hybrid motor vehicle having a gearbox input shaft operatively connected to a first electric machine and an internal combustion engine via a first partial drive train to transmit torque and which is operatively connected to a second electric machine via a second partial drive train to transmit torque. The second electric machine is permanently connected to the gearbox input shaft for torque transmission and the first electric machine and the internal combustion engine can be connected to the gearbox input shaft in a coupleable manner to transmit torque. The first electric machine and the second electric machine are arranged coaxially to one another, and driven shaft of the first electric machine is arranged radially inside a driven shaft of the second electric machine. The driven shaft of the first electric machine is mounted on the driven shaft of the second electric machine via a bearing.Type: GrantFiled: October 1, 2020Date of Patent: January 4, 2022Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Steffen Lehmann, Andreas Trinkenschuh, Frank Müller
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Patent number: 11167747Abstract: A drive unit for a drivetrain of a hybrid motor vehicle comprises a first electric machine and a second electric machine, which, in respect of its rotor, is arranged coaxially with an axis of rotation of a rotor of the first electric machine. A first transmission stage is arranged between a drive component, which is configured to be selectively coupled for conjoint rotation to an output shaft of an internal combustion engine, and a power shaft of the first electric machine and/or of the second electric machine. A transmission component unit is provided, via which the power shaft of the respective electric machine is configured to be selectively coupled to wheel driveshafts. The drive component of the internal combustion engine is coupled to an intermediate gear unit via a second transmission stage.Type: GrantFiled: November 15, 2018Date of Patent: November 9, 2021Assignee: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann
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Publication number: 20210252965Abstract: A drive unit for a drive train of an electrically driven motor vehicle, in particular a hybrid motor vehicle, comprising a first electric machine, a second electric machine and an output shaft. A rotor of the second electric machine is connected to the output shaft for conjoint rotation. The drive unit also comprises a separating clutch, configured to connect a rotor of the first electric machine to the output shaft for torque transmission, The rotor of one of the electric machines is at least indirectly radially supported on the rotor of the other electric machine by means-of-at least one rotary bearing.Type: ApplicationFiled: June 4, 2019Publication date: August 19, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann
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Publication number: 20210245730Abstract: A drive unit for a powertrain of an electrically drivable motor vehicle, in particular a hybrid motor vehicle, is equipped with a first electric machine as well as a second electric machine and and a first shaft as well as an output shaft. The drive unit furthermore has a separating clutch and a connection element for connection for conjoint rotation of an internal combustion engine, and wherein at least the first electric machine is operated in generator mode and the nominal rpm n1 of the first electric machine has the following relationship to the nominal rpm n2 of the second electric machine: n1>1.Type: ApplicationFiled: May 29, 2019Publication date: August 12, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann
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Publication number: 20210246619Abstract: Disclosed is a vertical member for a vehicle restraint system, said vertical member being intended for attaching a guard rail of the vehicle restraint system. The vertical member includes a profiled support and a reinforcing support within the profiled support, and the longitudinal axis of the reinforcing support runs substantially parallel to the longitudinal axis of the profiled support.Type: ApplicationFiled: July 22, 2019Publication date: August 12, 2021Applicant: DELTA BLOC INTERNATIONAL GMBHInventors: Thomas EDL, Steffen LEHMANN
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Publication number: 20210229543Abstract: A drive unit and a drive arrangement having the drive unit are provided. The drive unit includes a first electric machine and a second electric machine and an output shaft. A rotor of the second electric machine is connected to the output shaft for conjoint rotation and the drive unit has a separating clutch by which a rotor of the first electric machine is connected to the output shaft for torque transmission. The drive unit furthermore has a first flow system for implementing a flow of a first liquid for at least partial cooling of at least one electric machine and a second flow system for implementing a flow of a second liquid, the first flow system and the second flow system being arranged such that heat from the first liquid in the first flow system is transferred to the second liquid in the second flow system.Type: ApplicationFiled: June 4, 2019Publication date: July 29, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Andreas TRINKENSCHUH, Steffen LEHMANN, Carsten MAYER, Mario GRETHEL
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Publication number: 20210229542Abstract: A drive train for a hybrid motor vehicle comprises a gearbox input shaft, which is operably linked to a first electric machine and an internal combustion engine by a first partial drive train for torque transmission and is operably linked to a second electric machine by a second partial drive train for torque transmission. The second electric machine is permanently connected to the gearbox input shaft for torque transmission. The first electric machine and the internal combustion engine can be connected in a couplable manner to the gearbox input shaft for torque transmission.Type: ApplicationFiled: October 23, 2018Publication date: July 29, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Steffen Lehmann, Andreas Trinkenschuh
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Publication number: 20210197795Abstract: A drive unit and a drive assembly and a motor vehicle. The drive unit includes a first electric machine and a second electric machine and an output shaft, wherein a rotor of the second electric machine is connected to the output shaft for conjoint rotation. The drive unit further includes a disconnect clutch by which a rotor of the first electric machine can be connected to the output shaft. The drive unit further includes power electronics for controlling at least one of the two electric machines and a flow system for implementing a flow of a coolant, and the drive unit, being a component in the flow system, further includes a heat exchanger by which the coolant can be cooled. The drive unit and the drive assembly constitute equipment that allows control of individual assemblies in an efficient manner and with a low space requirement.Type: ApplicationFiled: June 4, 2019Publication date: July 1, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Steffen LEHMANN, Andreas TRINKENSCHUH, Nicolai GRAMANN, Christian SILVERY, Andreas BEXEL, Gregor MULLER
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Publication number: 20210190150Abstract: A clutch unit for a powertrain of a motor vehicle comprises a torque input component which acts as a drive element and a torque output component which acts as an output element. The torque input component can be connected to the torque output component in torque-transmissive fashion via an engageable clutch. The clutch has a translationally movable clutch element configured and arranged such that in an actuation position, the clutch element allows a torque to be transmitted from the torque input component to the torque output component via an interlocking engagement.Type: ApplicationFiled: October 23, 2018Publication date: June 24, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Andreas Trinkenschuh, Steffen Lehmann, Wolfgang Hill
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Publication number: 20210162854Abstract: A hybrid gear mechanism comprises a connection device for coupling to an internal combustion engine, a disconnect clutch, a first electrical machine, a first clutch device and an output drive device of said hybrid gear mechanism, which are all interconnected in series, said connection device being mechanically coupled to the input side of the disconnect clutch, the output side of the disconnect clutch being coupled to a rotor of the first electrical machine, the rotor of the first electrical machine being coupled to the input side of the first clutch device, and the output side of the first clutch device being coupled to the output drive device of the hybrid gear mechanism.Type: ApplicationFiled: June 27, 2019Publication date: June 3, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Steffen Lehmann, Andreas Trinkenschuh, Laurent Bayoux
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Patent number: 10995802Abstract: A hybrid module for a drive train of a motor vehicle, comprises an electric machine which has a stator and a rotor, a torsional vibration damper which has at least one rotary component, and an integrated clutch device which is constructed as a dual clutch. A rotor carrier which receives the rotor is connected directly via a permanent rotary connection to the at least one rotary component. The rotor carrier forms a clutch component of at least one part-clutch of the clutch device.Type: GrantFiled: July 19, 2017Date of Patent: May 4, 2021Assignee: Schaeffler Technologies AG & Co. KGInventors: Steffen Lehmann, Andreas Trinkenschuh, Elmar Lorenz
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Publication number: 20210086605Abstract: A hybrid module for a drive train of a motor vehicle comprises a housing, a disconnect clutch, and a hydraulic actuating unit cooperating with the disconnect clutch and received on the housing. The module includes an electric motor, wherein a rotor of the electric motor is rotationally coupled to a clutch component of the disconnect clutch. The actuating unit has a piston element, which is received such that it is displaceable relative to the housing and which, via an actuating bearing, is connected to a pressure element such that it is fixed against displacement in an axial direction of the disconnect clutch yet rotatable relative to the pressure element. The pressure element is configured for engagement and disengagement of the disconnect clutch, and the actuating bearing is formed as an axial needle bearing.Type: ApplicationFiled: July 3, 2018Publication date: March 25, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Jonathan Laigo, Steffen Lehmann
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Publication number: 20210053432Abstract: A hybrid module for a motor vehicle for coupling an internal combustion engine, comprises a first drive shaft, a first electrical machine and a first coupling device, as well as a second drive shaft and, associated therewith, a second electrical machine, and a second coupling device; and further comprises an output element, the first or second drive shaft being connectable to the output element by way of a first or second coupling device, wherein the two coupling devices can be simultaneously actuated by a movement of an actuation element which is mechanically coupled to the two coupling devices. The hybrid module disclosed provides a drive device for a motor vehicle that offers energy-efficient operation in a plurality of different operating modes while requiring a small installation space.Type: ApplicationFiled: February 4, 2019Publication date: February 25, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Benjamin Stober, Dierk Reitz, Steffen Lehmann
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Publication number: 20210016766Abstract: A drive train for a hybrid motor vehicle having a gearbox input shaft operatively connected to a first electric machine and an internal combustion engine via a first partial drive train to transmit torque and which is operatively connected to a second electric machine via a second partial drive train to transmit torque. The second electric machine is permanently connected to the gearbox input shaft for torque transmission and the first electric machine and the internal combustion engine can be connected to the gearbox input shaft in a coupleable manner to transmit torque. The first electric machine and the second electric machine are arranged coaxially to one another, and driven shaft of the first electric machine is arranged radially inside a driven shaft of the second electric machine. The driven shaft of the first electric machine is mounted on the driven shaft of the second electric machine via a bearing.Type: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Applicant: Schaeffler Technologies AG & Co. KGInventors: Steffen Lehmann, Andreas Trinkenschuh