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公开(公告)号：US12140191B2
公开(公告)日：2024-11-12
申请号：US18270340
申请日：2021-11-30
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marco Grethel
IPC: F16D48/02
Abstract: The disclosure relates to a method for actuating a decoupling unit in a powertrain which comprises at least one driven axle. The aim of the disclosure is to simplify the actuation of the decoupling unit. This is achieved in that the decoupling unit is passively actuated in an actuation direction using an actuation force, which is provided in a hydraulic system, via a first hydraulic functional surface, and the decoupling unit is passively actuated in a restoring direction using a restoring force via a second hydraulic functional surface.
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公开(公告)号：US20240200580A1
公开(公告)日：2024-06-20
申请号：US18286568
申请日：2022-03-25
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Peter Greb , Marco Grethel , Peter Biegert
CPC classification number: F15B13/01 , F15B11/08 , F15B21/001
Abstract: The disclosure relates to a hydraulic system including a reversing pump which has two delivery connections via which a hydraulic medium can be delivered from a tank in opposite delivery directions in order to hydraulically actuate an actuating element and supply a cooling and/or lubricating system. The hydraulic system also includes a valve assembly via which an actuating piston in a double-acting actuating cylinder can be supplied with hydraulic medium.
A first delivery connection of the reversing pump is fluidly connected to a first pressure connection of the double-acting actuating cylinder. A second delivery connection of the reversing pump is fluidly connected to a second pressure connection of the double-acting actuating cylinder. The actuating piston is mechanically coupled to a valve piston of a valve, and the valve piston is mechanically coupled to a locking device and to the actuating element.
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公开(公告)号：US12005769B2
公开(公告)日：2024-06-11
申请号：US18266858
申请日：2021-10-08
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marco Grethel , Carsten Mayer
CPC classification number: B60K1/00 , B60K17/105 , F16H61/0009 , F16H61/0031 , B60K2001/001
Abstract: A hydraulic arrangement for an electrically operable, multigear axle drive train of a motor vehicle comprises a hydraulic circuit in which a hydraulic fluid is guided, a hydraulic pump arranged to apply pressure to the hydraulic fluid within the hydraulic circuit, a first hydraulic path arranged to connect a first clutch device to the hydraulic circuit, and a second hydraulic path arranged to connect a second clutch device to the hydraulic circuit. The first and second clutch devices are each arranged to actuate a gear selection device of the electrically operable axle drive train.
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公开(公告)号：US20230022059A1
公开(公告)日：2023-01-26
申请号：US17784171
申请日：2020-12-03
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marco Grethel , Götz Rathke
Abstract: An electrified drive train for a motor vehicle, having a heat generator, includes at least one electrical drive machine, and a heat dissipation circuit which has at least one first heat exchanger and one second heat exchanger for dissipating heat from a cooling circuit which is routed through the heat generator. During operation, a fluid used in the heat dissipation circuit flows through the first heat exchanger and, parallel thereto, through the second heat exchanger.
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公开(公告)号：US20220373042A1
公开(公告)日：2022-11-24
申请号：US17762120
申请日：2020-08-26
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Carsten Mayer , Marco Grethel , Yunfan Wei
IPC: F16D48/06
Abstract: A method for controlling a friction clutch actuated by an actuation system using an actuation pressure ambiguously applied along an actuation path includes providing the friction clutch and the actuation system, detecting a time curve of an actuation processes of the friction clutch, and comparing the time curve with the actuation pressure to ascertain an unambiguous friction clutch actuation path. The method may also include using the time curve to determine whether the friction clutch is in an opening state or a closing state and whether the actuation pressure is applied to an opened friction clutch actuation path or a closed friction clutch actuation path, and starting from a set actuation pressure, carrying out a directional control of the friction clutch by specifying the actuation pressure.
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公开(公告)号：US11248663B2
公开(公告)日：2022-02-15
申请号：US16968832
申请日：2019-01-15
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marco Grethel , Loyal George MacMillian , Carsten Mayer , Markus Baehr
Abstract: A clutch unit for a powertrain of a motor vehicle is disclosed, comprising a torque input component acting as a drive element and a torque output component acting as an output element, which can be connected to transmit a torque to the torque input component through a clutch which can be switched through friction elements, the clutch having two partial clutches by which the torque input component and the torque output component can be connected so as to transmit a torque, in which one of the two partial clutches is configured as a positive-fit clutch and the other of the two partial clutches is configured as a friction clutch. In addition, the disclosure relates to a hybrid module with a first drive machine the output shaft of which can be connected through such a clutch unit to an output shaft of a second drive machine or a transmission input shaft.
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公开(公告)号：US20210003178A1
公开(公告)日：2021-01-07
申请号：US16968832
申请日：2019-01-15
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marco Grethel , Loyal George MacMillian , Carsten Mayer , Markus Baehr
Abstract: A clutch unit for a powertrain of a motor vehicle is disclosed, comprising a torque input component acting as a drive element and a torque output component acting as an output element, which can be connected to transmit a torque to the torque input component through a clutch which can be switched through friction elements, the clutch having two partial clutches by which the torque input component and the torque output component can be connected so as to transmit a torque, in which one of the two partial clutches is configured as a positive-fit clutch and the other of the two partial clutches is configured as a friction clutch. In addition, the disclosure relates to a hybrid module with a first drive machine the output shaft of which can be connected through such a clutch unit to an output shaft of a second drive machine or a transmission input shaft.
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公开(公告)号：US20180335006A1
公开(公告)日：2018-11-22
申请号：US15778031
申请日：2016-11-22
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marco Grethel , Markus Baehr , Hyung Wook Choi
IPC: F02N11/04 , F02N11/00 , F16F15/131 , H02P9/08
CPC classification number: F02N11/04 , B60W30/20 , F02D2400/02 , F02N11/006 , F02N2011/0888 , F02N2200/022 , F02N2300/104 , F16F15/131 , H02P7/298 , H02P9/008 , H02P9/08
Abstract: A drive train for a motor vehicle includes an internal combustion engine, a starting device, and a vibration isolation device. The internal combustion engine has a main order of vibration and an excitation frequency predetermined by a predetermined operating principle and a predetermined number of cylinders. The starting device is for starting the internal combustion engine and has an electric machine with a torque characteristic over a speed (n). The vibration isolation device is designed for the main order of vibration of the internal combustion engine. The vibration isolation device has a resonance characteristic below an idling speed (nL) of the internal combustion engine in a resonance range occurring in a first speed range (Δn2). The resonance range is shifted into a second, lower speed range (Δn1 when the electric machine is coupled. The electric machine is arranged to supply a torque effective beyond the second, lower speed range (Δn1.).
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公开(公告)号：US11884158B2
公开(公告)日：2024-01-30
申请号：US15734795
申请日：2019-06-04
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Andreas Trinkenschuh , Steffen Lehmann , Carsten Mayer , Marco Grethel
IPC: B60K6/26 , B60K6/387 , B60K6/24 , F16D25/12 , F16D28/00 , F16H57/04 , H02K7/00 , H02K7/108 , H02K9/19 , B60K6/442
CPC classification number: B60K6/387 , B60K6/24 , B60K6/26 , F16D25/12 , F16D28/00 , F16H57/0415 , F16H57/0424 , F16H57/0473 , F16H57/0476 , H02K7/006 , H02K7/108 , H02K9/19 , B60K6/442 , B60Y2200/92 , B60Y2306/03 , B60Y2306/05 , B60Y2400/405 , B60Y2400/406 , B60Y2400/60
Abstract: 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.
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10.发明授权
公开(公告)号：US11378139B2
公开(公告)日：2022-07-05
申请号：US16967895
申请日：2019-01-15
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Marco Grethel , Loyal George MacMillian , Markus Baehr , Carsten Mayer
Abstract: A clutch unit for a powertrain of a motor vehicle is disclosed, comprising a torque input component acting as a drive element, a torque output component acting as an output element, being connectable so as to transmit a torque to the torque input component via a clutch that can be shifted using friction elements, and with a torsional vibration damper having two masses damped relative to one another to reduce rotational irregularities, which is arranged between the torque input component and the torque output component, at least one of the two masses of the torsional vibration damper being simultaneously designed as a support for a friction partner. The disclosure further relates to a hybrid module comprising a first drive machine, the output shaft of which can be connected to an output shaft of a second drive machine or a transmission input shaft via such a clutch unit.
