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1.发明授权Pressure plate stress-relief grooves for a friction element assembly in a transmission of a motor vehicle and associated method 有权用于机动车辆的变速器中的摩擦元件组件的压力板应力消除槽和相关联的方法公开(公告)号：US09482287B2
公开(公告)日：2016-11-01
申请号：US14178937
申请日：2014-02-12
IPC分类号： F16D25/0638 , F16D13/70 , F16D55/40 , F16D13/52 , F16D13/64 , F16D13/38 , F16D13/68 , F16D55/00
CPC分类号： F16D13/646 , F16D13/38 , F16D13/52 , F16D13/683 , F16D55/00
摘要： Stress-relief grooves are provided in a pressure plate of a friction element assembly in a motor vehicle comprising a transmission. The friction element assembly includes a piston assembly provided for applying a force to a set of plates and friction members to cause torque to be transmitted through the friction element assembly. A pressure plate is supported by the housing and held in place by a snap ring mounted in a mounting groove. The pressure plate includes a first side facing the set of plates and friction members and a second side having at least one stress-relief groove configured to reduce stress in the housing at the mounting groove.
摘要翻译： 在包括变速器的机动车辆中的摩擦元件组件的压力板中设置有应力消除凹槽。 摩擦元件组件包括活塞组件，其被设置用于向一组板和摩擦构件施加力以使扭矩传递通过摩擦元件组件。 压板由壳体支撑并通过安装在安装槽中的卡环保持就位。 所述压板包括面对所述一组板和摩擦件的第一侧面和具有至少一个应力消除槽的第二侧面，所述至少一个应力消除凹槽构造成减小所述壳体在所述安装槽处的应力。
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公开(公告)号：US20140329636A1
公开(公告)日：2014-11-06
申请号：US13888250
申请日：2013-05-06
IPC分类号： F16H57/08
CPC分类号： F16H57/082 , F16H1/46 , F16H57/0479 , F16H2057/0056 , Y10T29/49464
摘要： A transmission planetary gear assembly, having: a carrier housing with axial orifice; a pinion shaft fitted through the axial orifice; a first fastener configured to axially secure the pinion shaft with respect to the carrier housing at one end of the shaft; and a second fastener configured to axially secure the pinion shaft with respect to the carrier housing at another end of the shaft.
摘要翻译： 一种变速器行星齿轮组件，其具有：具有轴向孔的承载壳体; 通过轴向孔装配的小齿轮轴; 第一紧固件，其构造成在所述轴的一端处相对于所述载体壳体轴向地固定所述小齿轮轴; 以及第二紧固件，其构造成在所述轴的另一端处相对于所述承载器壳体轴向地固定所述小齿轮轴。
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公开(公告)号：US20140166422A1
公开(公告)日：2014-06-19
申请号：US13714929
申请日：2012-12-14
IPC分类号： F16D21/00
CPC分类号： F16D25/061 , F16D41/12 , F16D47/04
摘要： A clutch assembly is disclosed that combines a positively engaging dog clutch and one way clutch. The two devices are design such that the one way clutch never interferes with the engagement or disengagement of the dog clutch. In one embodiment, the one way clutch transmits torque in particular rotational positions and the dog teeth are circumferentially placed such that they do not engage in any of these positions. In another embodiment, the dog clutch piston, to which the teeth are secured, is permitted to rotate enough to accommodate any interference between dog teeth during engagement. In either embodiment, the teeth faces that transmit torque in the same direction as the one way clutch may be angled such that torque in that direction tends to disengage the dog clutch.
摘要翻译： 公开了一种离合器组件，其结合了正向啮合的爪形离合器和单向离合器。 这两个装置的设计使得单向离合器不会干扰狗离合器的接合或分离。 在一个实施例中，单向离合器在特定旋转位置传递扭矩，并且狗齿沿周向放置，使得它们不接合这些位置中的任一个。 在另一个实施例中，齿被固定到其上的狗离合器活塞被允许旋转足以适应啮合期间狗齿之间的任何干扰。 在任一实施例中，齿形面在与单向离合器相同的方向上传递扭矩可以成角度，使得在该方向上的扭矩倾向于使爪式离合器脱离。
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公开(公告)号：US10563712B2
公开(公告)日：2020-02-18
申请号：US15659913
申请日：2017-07-26
IPC分类号： F16H59/46 , F16D48/06 , F16H61/02 , F16H61/686 , F16H63/30 , F16D25/0635 , F16D25/10 , F16D48/02 , F16H61/04
摘要： A transmission includes at least one shift element for which both the apply pressure and the release pressure are actively controlled. A controller adjusts the torque capacity of the shift element by varying the apply pressure and the release pressure in a coordinated fashion. During particular events, such as a shift event with the shift element as oncoming element or holding element, both the apply pressure and the release pressure are monotonically increased, mitigating the effect of hysteresis.
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公开(公告)号：US10054223B2
公开(公告)日：2018-08-21
申请号：US15598455
申请日：2017-05-18
CPC分类号： F16H63/3026 , F16D13/52 , F16D13/683 , F16D13/70 , F16D25/0638 , F16D55/36 , F16D2300/12 , F16H57/08 , F16H2057/087 , Y10T29/49872
摘要： A friction element assembly for a transmission of a motor vehicle includes a set of plates and friction members. A piston assembly is configured to apply a force to the set of plates and friction members. The friction element assembly also includes a housing with a mounting groove; a pressure plate having first and second edges; and a snap ring positioned in the mounting groove. The snap ring is positioned such that first edge of the pressure plate contacts the snap ring and the second edge of the pressure plate extends across a portion of the snap ring. The snap ring is L-shaped and includes a leg portion that contacts the second edge of the pressure plate when the piston assembly applies a force to the set of plates and friction members.
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公开(公告)号：US09845832B2
公开(公告)日：2017-12-19
申请号：US14178979
申请日：2014-02-12
发明人： Bradley Ronald Heuver , Marv Young , Carl Garbacik
IPC分类号： F16D13/68 , F16D13/52 , F16D13/70 , F16D25/0638 , F16D55/40 , F16D13/64 , B60T1/06 , F16D55/32
CPC分类号： F16D25/0638 , B60T1/062 , F16D13/52 , F16D13/646 , F16D13/68 , F16D13/683 , F16D13/70 , F16D55/32 , F16D55/40 , Y10T29/49464
摘要： A vehicle transmission includes a transmission shaft, a friction element assembly mounted on the transmission shaft, a piston assembly for actuating the friction element assembly, a snap ring for retaining the friction element assembly and a mounting groove formed in the transmission shaft. The snap ring is installed into the mounting groove by expanding the snap ring and then allowing the snap to contract and enter the mounting groove. The mounting groove is located such that the snap ring could exit the mounting groove upon expansion of the snap ring due to a centrifugal force. Accordingly, various arrangements are provided to prevent the snap ring from leaving the mounting groove after installation.
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公开(公告)号：US11283312B2
公开(公告)日：2022-03-22
申请号：US16559768
申请日：2019-09-04
摘要： A stator system for an electric vehicle motor may include a stator having a torque key extending axially from a first stator end, a case configured to surround the stator and defining a case opening to receive the torque key, the case defining a keyway between the torque key and the case opening, a torque key mechanism arranged within the keyway, wherein the torque key mechanism includes a pair of reciprocally aligned wedges defining a channel through at least one of the wedges, and a bolt insertable at the channel and configured to engage the channel to move at least one wedge and create an interference fit of the torque key mechanism within the keyway to attach the stator to the case.
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公开(公告)号：US10138955B2
公开(公告)日：2018-11-27
申请号：US15228072
申请日：2016-08-04
摘要： A clutch for an automatic transmission includes a tubular housing surrounding a clutch pack and having an end for engaging with a pressure plate. An annular separator spring on the end provides a biasing force against the pressure plate. A plurality of depressible pins are disposed in the housing and are located radially outward from the annular spring for inhibiting radial movement of the separator spring.
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公开(公告)号：US09810315B1
公开(公告)日：2017-11-07
申请号：US15210466
申请日：2016-07-14
CPC分类号： F16H61/0021 , F16H61/0206 , F16H2061/0034
摘要： A vehicle includes a transmission having a fluid pump, a high pressure fluid circuit, a low pressure fluid circuit, and an accumulator. The vehicle also includes a controller that is programmed to, in response fluid demand exceeding a capacity of the pump, isolate the low pressure circuit from the pump. The controller is also programmed to, in response to vehicle speed exceeding a threshold while the low the pressure circuit is isolated from the pump, discharge the accumulator into the high pressure circuit.
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公开(公告)号：US20170016532A1
公开(公告)日：2017-01-19
申请号：US14797205
申请日：2015-07-13
IPC分类号： F16H63/34
CPC分类号： F16H63/3433 , F16H63/3483
摘要： A park-by-wire system uses a single spring to bias the system towards park and to permit a ratcheting feature which delays the engagement of park until vehicle speed drops below a threshold. A cam slides with respect to a rod. A stop on the rod limits travel in one direction. The spring biases the cam toward the stop but compresses as necessary to allow the cam to move during ratcheting operation. The spring reacts against the housing. Acting through the cam and the stop, the spring biases the rod toward the park position. The design limits the number of components that move during ratcheting operation. Specifically, the rod and actuator do not oscillate during ratcheting operation.
摘要翻译： 逐线系统使用单个弹簧来将系统偏置到停车位，并且允许延迟停车参与的棘轮特征，直到车速下降到阈值以下。 凸轮相对于杆滑动。 杆上的止挡限制了一个方向的行进。 弹簧将凸轮偏压到挡块上，但是必要时可以压缩凸轮，以便在棘轮操作期间凸轮移动。 春天对房屋做出反应。 弹簧通过凸轮和止动件，弹簧将杆偏向公园位置。 设计限制了棘轮操作期间移动的部件数量。 具体来说，杆和执行器在棘轮操作期间不振荡。
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