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公开(公告)号：US20210215208A1
公开(公告)日：2021-07-15
申请号：US16738689
申请日：2020-01-09
发明人： Daniel Payne , Filippo Bonacini , Stefano Iannone , Enrico Sedoni
IPC分类号： F16D48/02 , F16D25/0638 , F16D125/06 , F16D125/16 , F16D129/02 , F16D127/08
摘要： A clutch assembly for a transmission of an agricultural work vehicle. The clutch assembly includes a housing, a clutch pack located within the housing, a piston chamber located within the housing, and a piston located within and slidable relative to the piston chamber. The piston is operably connected to the clutch pack for engaging and disengaging the clutch pack. The clutch assembly further includes a balance chamber that is located within the housing. The lower boundary wall of the balance chamber and the lower boundary wall of the piston chamber are radially separated from one another by a substantial distance.
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公开(公告)号：US11060604B2
公开(公告)日：2021-07-13
申请号：US16674118
申请日：2019-11-05
发明人： Tatsuya Saito , Yohei Habata
摘要： A lubrication system for a power transmission unit that supplies oil to a starting clutch in an appropriate amount irrespective of an engagement state of the starting clutch. When the friction clutch is completely engaged or disengaged, a first control valve is brought into a low inflow rate mode, and the second control valve is brought into a low outflow rate mode. When the friction clutch is engaged while causing a slip the first control valve is brought into a high inflow rate mode, and the second control valve is brought a high outflow rate mode.
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公开(公告)号：US20210156436A1
公开(公告)日：2021-05-27
申请号：US17258496
申请日：2019-06-26
发明人： Michael STAMML
IPC分类号： F16D48/02
摘要： A hydraulic control device with a pressure control valve that has a control piston and a modulating piston which can move relative to one another. The control piston and the modulating piston are pushed apart from one another by at least one spring. At one end face of the modulating piston there is arranged a pressure chamber in such a manner that when the pressure chamber is filled, the modulating piston is caused to move in the direction toward the control piston. The pressure chamber can be filled by a first volume flow Q1 of a pressure medium. A venting line, with at least one further throttle, is connected to the pressure chamber. A second volume flow Q2 can be discharged, via the venting line, from the pressure chamber, The hydraulic control device can be utilized in a marine transmission,
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公开(公告)号：US11015707B2
公开(公告)日：2021-05-25
申请号：US16096814
申请日：2017-04-25
发明人： Stefan Kuntner
摘要： The invention relates to a hydraulic circuit having a first hydraulically actuable clutch that is closed in a rest state and a second hydraulically actuable clutch that is closed in the rest state, wherein the hydraulic circuit is configured in such a way that a hydraulic medium present in a main pressure line can be loaded with a working pressure by a pressure generating device and/or a pressure accumulator, and the hydraulic medium can be discharged for pressure dissipation via a main return line into the return reservoir. In some embodiments, the hydraulic circuit has a first distributor pressure line and a separate, first collector return line for the hydraulic supply of a first part circuit and at least one separate, second distributor pressure line and at least one separate, second collector return line for the hydraulic supply of a second part circuit, and the first clutch is assigned to the first part circuit and the second clutch is assigned to the second part circuit.
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公开(公告)号：US20210146926A1
公开(公告)日：2021-05-20
申请号：US17159246
申请日：2021-01-27
发明人： Paul Peterson , Graeme Andrew Jackson , Paul Wilson , Christian Chimner , David L. Wadas , Thomas Connolly
IPC分类号： B60W30/18 , F16H37/04 , B60K17/28 , B60W10/02 , B60W10/06 , B60W10/111 , B60W10/115 , B60W10/196 , B60W30/188 , B60W30/19 , B60W40/13 , B60W50/02 , B60W50/035 , F16D25/04 , F16D48/02 , F16D48/06 , F16H3/091 , F16H3/093 , F16H57/00 , F16H61/02 , F16H61/04 , F16H3/64 , F16H57/02 , F16H59/02 , F16H61/06 , F16H61/08 , H04B10/077 , H04J3/12 , B60W10/11 , B60W50/00 , F16D25/12 , F16H61/00
摘要： A transmission includes an input shaft and an output shaft, the input shaft selectively accepting a torque input from a prime mover, and the output shaft selectively providing torque output to a driveline. A controller determines a shaft displacement angle representing an angle value of rotational displacement difference between at least two shafts of the transmission, and performs a transmission operation responsive to the shaft displacement angle.
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公开(公告)号：US11009087B2
公开(公告)日：2021-05-18
申请号：US16509575
申请日：2019-07-12
发明人： Shinya Kitai
摘要： A clutch connecting/disconnecting device comprises: a clutch pedal; a clutch cylinder; a depression force transmission mechanism; and an actuator. The depression force transmission mechanism is configured to include a cylinder device. The cylinder device includes an input piston, an output piston, a first oil chamber, and a second oil chamber. A pressure receiving area on the first oil chamber side of the output piston is made equal to a pressure receiving area on the second oil chamber side of the output piston. The first oil chamber and the second oil chamber are connected via an electromagnetic valve connecting and disconnecting between the first oil chamber and the second oil chamber, and the actuator is connected to the output piston in a power transmitting manner.
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公开(公告)号：US10975921B2
公开(公告)日：2021-04-13
申请号：US16425555
申请日：2019-05-29
发明人： Patrick Desing , Shun Ono , Evan Swinger , Sean Hayes , Masaki Mita
IPC分类号： F16D25/06 , F16D25/10 , F16D48/02 , F16D48/06 , B60K23/02 , F16D25/0638 , B60K17/02 , F16D13/52 , F16D131/02 , F16D121/04
摘要： Systems, apparatus, and methods to control fluid associated with vehicle clutches are disclosed. A disclosed apparatus includes a drive unit assembly for a vehicle. The drive unit assembly includes a housing and a clutch in a cavity of the housing. Rotation of a drum of the clutch expels a fluid from the cavity. The apparatus also includes a vehicle controller configured to disengage the clutch via an actuator. Actuation of the actuator reduces a flow of the fluid into the cavity. The vehicle controller is also configured to maintain engagement of a vehicle transfer device operatively coupled between a vehicle transmission and the drum such that the drum continues to rotate for a time interval during which the clutch is disengaged.
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公开(公告)号：US10953879B2
公开(公告)日：2021-03-23
申请号：US16094673
申请日：2017-04-11
申请人： DENSO CORPORATION
发明人： Toshikazu Akita , Tomohisa Ose , Shigeru Maeda
IPC分类号： B60W30/18 , B60W10/08 , B60W10/06 , B60W10/10 , B60T8/00 , F16D48/02 , B60K6/36 , B60K6/387 , B60K6/48 , B60W10/02 , B60W10/18 , B60W20/00
摘要： A vehicle control apparatus is applied to a vehicle including an engine as traveling drive source and a clutch device in a power transmission path connected to an output shaft of the engine. The vehicle control apparatus causes the vehicle to be in a coasting state by reducing power transmitted in the path by clutch device operation upon satisfaction of a predetermined implementation condition, and cancels coasting state by clutch device operation upon satisfaction of a predetermined coasting cancellation condition including at least an accelerator condition during coasting. The vehicle control apparatus includes a travel determination section determining coasting state of the vehicle, and a clutch control section performing half-clutch control during coasting at least at one of at the beginning of coasting and immediately before coasting is cancelled, the half-clutch control setting a degree of clutch device engagement to an intermediate degree.
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公开(公告)号：US10920836B2
公开(公告)日：2021-02-16
申请号：US16308544
申请日：2017-06-14
申请人： GKN Automotive Ltd.
发明人： Reinhard Möhlmann
IPC分类号： F16D25/12 , F16H48/19 , F16H48/22 , F16H48/32 , B60K17/35 , F16H48/12 , B60K23/08 , B60K17/346 , F16D25/0638 , F16D25/10 , F16D48/02
摘要： In a hydraulic clutch actuation system for controlling in particular a clutch-controlled compensation unit of a drivetrain of a motor vehicle, in which hydraulic clutch actuation system a hydraulic pump is used for generating hydraulic pressure in a hydraulic fluid for the purposes of clutch actuation by means of a hydraulic clutch actuation device, provision is made whereby the hydraulic fluid is supplied as clutch oil to the friction members of the friction clutch which are to be oiled with clutch oil (cooling and/or lubricating oil). In this way, improved and more reliable oiling of the clutch can be made possible even at low vehicle speeds and under heavy clutch load, wherein, despite this, very rapid dry-running of the cutches, and low power losses generated by the clutch oiling, are ensured.
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公开(公告)号：US20200378450A1
公开(公告)日：2020-12-03
申请号：US16425555
申请日：2019-05-29
发明人： Patrick DESING , Shun ONO , Evan SWINGER , Sean HAYES , Masaki MITA
摘要： Systems, apparatus, and methods to control fluid associated with vehicle clutches are disclosed. A disclosed apparatus includes a drive unit assembly for a vehicle. The drive unit assembly includes a housing and a clutch in a cavity of the housing. Rotation of a drum of the clutch expels a fluid from the cavity. The apparatus also includes a vehicle controller configured to disengage the clutch via an actuator. Actuation of the actuator reduces a flow of the fluid into the cavity. The vehicle controller is also configured to maintain engagement of a vehicle transfer device operatively coupled between a vehicle transmission and the drum such that the drum continues to rotate for a time interval during which the clutch is disengaged
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