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公开(公告)号：US11642960B2
公开(公告)日：2023-05-09
申请号：US16872205
申请日：2020-05-11
IPC分类号： B60K17/356 , F16H48/08 , B60K17/02 , B60K1/04 , B60K17/35 , B60K23/08 , F16D11/14 , B60K6/387 , B60K6/52 , F16D25/06
CPC分类号： B60K17/356 , B60K1/04 , B60K6/387 , B60K6/52 , B60K17/02 , B60K17/35 , B60K23/08 , F16D11/14 , F16D25/06 , F16H48/08 , B60Y2200/92
摘要： Methods and systems are provided for selectively engaging an electric machine to an electric axle of a vehicle. In one example, a method may include engaging or disengaging the electric machine to a differential of the electric-axle by adjusting pressure in a piston coupled to an axle shaft of the electric-axle via a disconnect clutch.
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公开(公告)号：US09933025B2
公开(公告)日：2018-04-03
申请号：US15310528
申请日：2015-05-12
发明人： Yasuhiro Oshiumi
CPC分类号： F16D48/06 , F16D25/06 , F16D2500/1026 , F16D2500/10412 , F16D2500/1045 , F16D2500/3026 , F16D2500/30415 , F16D2500/30426 , F16D2500/3067 , F16D2500/3166 , F16D2500/5012 , F16D2500/50239 , F16D2500/50245 , F16D2500/50251 , F16D2500/7041 , F16D2500/70605
摘要： A control system is for a clutch mechanism. The clutch mechanism includes a first engaging element, a second engaging element, and a piston. The first engaging element is configured to be moved according to change of a position of the piston. The first engaging element and the second engaging element are coupled to each other such that torque can be transmitted from the first engaging element to the second engaging element. The control system comprises an electronic control unit. The electronic control unit is configured to learn an engagement start position, according to a rotational speed of one of the first engaging element and the second engaging element. The engagement start position is a position of the first engaging element at the time when the first engaging element and the second engaging element start contacting with each other.
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公开(公告)号：US20170259824A1
公开(公告)日：2017-09-14
申请号：US15223170
申请日：2016-07-29
发明人： Young Chul KIM , Jong Hyun KIM , June Ho LEE , Sang Hyun JEONG
CPC分类号： B60W30/18009 , B60C9/00 , B60K6/00 , B60K6/20 , B60K6/40 , B60K6/48 , B60K6/547 , B60Q9/00 , B60W10/00 , B60W10/02 , B60W10/06 , B60W20/00 , B60W30/18 , B60W2510/02 , B60W2710/02 , B60W2710/06 , B60Y2200/92 , B60Y2300/42 , B60Y2300/45 , F16D25/06 , F16H61/0021 , F16H61/0025 , F16H61/0031 , F16H61/12 , F16H63/46 , F16H2059/725 , F16H2061/1232 , F16H2312/14
摘要： A method for controlling a line pressure of a hybrid vehicle includes applying, by a controller, a set current corresponding to a target pressure to a first solenoid valve controlling the line pressure, driving, by the controller, a second solenoid valve to open an engine clutch after the applying step, comparing, by the controller, a difference value between a real pressure of the engine clutch sensed by a pressure sensor and the target pressure with a preset pressure after the driving step, and as a result of performing the comparing step, if the difference value is equal to or greater than the preset pressure, controlling, by the controller, an increase of a revolution per minute (RPM) speed of the electric oil pump and an increase of a pressure of the first solenoid valve to be alternately generated.
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公开(公告)号：US20170146075A1
公开(公告)日：2017-05-25
申请号：US14948980
申请日：2015-11-23
申请人： Caterpillar Inc.
发明人： Brian E. Lister
CPC分类号： F16D25/14 , F16D25/06 , F16D48/02 , F16D2048/0233
摘要： A hydraulic circuit includes a clutch actuator operatively associated with a clutch that may be disposed in a transmission. A hydraulic fluid source supplies pressurized hydraulic fluid for the clutch actuator. To measure the filling rate of the hydraulic actuator, a reference actuator having a predetermined filling rate is disposed in parallel with the hydraulic actuator and in fluid communication with the hydraulic fluid source. If hydraulic pressure associated with the reference actuator does not correspond to the hydraulic pressure associated with the clutch actuator, a compensation valve can appropriately respond by selectively directing hydraulic fluid to or from the clutch actuator. In a further embodiment, the reference actuator and compensation valve may be replaced with an electrohydraulic valve utilizing feedback from the hydraulic pressure present at the inlet of the clutch actuator.
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公开(公告)号：US20170097076A1
公开(公告)日：2017-04-06
申请号：US14873318
申请日：2015-10-02
申请人： VALEO EMBRAYAGES
发明人： Alexandre DEPRAETE
CPC分类号： F16H45/02 , F16D25/06 , F16F15/1333 , F16F2230/0064 , F16H2045/0221 , F16H2045/0247 , F16H2045/0278
摘要： The invention relates to a hydrokinetic torque coupling device for a motor vehicle, comprising a torque input element (11) intended to be coupled to a crankshaft (1), an impeller wheel (3) rotationally coupled to the torque input element (11) and able to hydrokinetically drive a turbine wheel (4), a torque output element (8) intended to be coupled to a transmission input shaft (2), clutch means (10) movable between an engaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through damping means (23, 27), and a disengaged position wherein the torque input element (11) and the torque output element (8) are rotationally coupled through the impeller wheel (3), the turbine wheel and the damping means (23, 27).
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公开(公告)号：US20170089407A1
公开(公告)日：2017-03-30
申请号：US14868668
申请日：2015-09-29
发明人： FLYNN MCCABE , DIONNA SHARPE , JOHN D. BORDERS , PATRICK DUFF
CPC分类号： F16D25/12 , F16D1/06 , F16D1/10 , F16D25/06 , F16D25/123 , F16D25/14 , F16D2001/103 , F16D2121/04 , F16D2125/06
摘要： The present invention in one or more embodiments provides an input clutch assembly which includes a cylinder housing, a cross-section thereof including along an axial direction first and second spaced apart cylinder-portions, and an input sleeve, a cross-section thereof including along the axial direction first and second sleeve-portions defining there-between a first sleeve-channel with a pair of edges spaced apart along the axial direction, the first sleeve-portion defining thereupon a recess, where at a first engagement position the recess is at least partially exposed while the pair of edges both contact the first cylinder-portion.
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公开(公告)号：US09194489B2
公开(公告)日：2015-11-24
申请号：US14003468
申请日：2012-02-15
申请人： Ryohey Toyota
发明人： Ryohey Toyota
IPC分类号： F16H61/68 , F16H61/08 , F16D25/06 , F16H61/688
CPC分类号： F16H61/68 , B60K6/36 , B60W10/08 , B60W10/115 , B60W30/19 , B60W2510/0275 , B60W2710/083 , F16D25/06 , F16H3/728 , F16H61/08 , F16H61/684 , F16H61/688 , F16H2037/0873 , F16H2061/0429 , F16H2306/46
摘要： An automatic transmission shift control device include a controller that is programmed to shift an automatic transmission by issuing a command for switching an interference shift element from an engaged state to a disengaged state, and by issuing a command for switching a friction shift element from a released state to a locked state. The controller includes a progressive friction-shift-element switchover section which causes progressive switching of the friction shift element from the released state to the locked state prior to the command for switching of the interference shift element from the engaged state to the disengaged state. The controller includes an interference-shift-element switchover section which causes the switching of the interference shift element from the engaged state to the disengaged state when transmission torque of the interference shift element decreases to a predetermined value as the friction shift element progressively switches from the released state to the locked state.
摘要翻译： 自动变速器变速控制装置包括控制器，其被编程为通过发出用于将干扰换档元件从接合状态切换到分离状态的命令来移动自动变速器，并且通过发出用于从释放的状态切换摩擦变速元件的命令 状态为锁定状态。 控制器包括逐步摩擦切换元件切换部分，其在用于将干涉换档元件从接合状态切换到分离状态的命令之前，使摩擦换档元件从释放状态逐渐转换到锁定状态。 控制器包括干扰偏移元件切换部分，当干扰换档元件的传动扭矩降低到预定值时，干扰换档元件从接合状态切换到分离状态，随着摩擦变速元件逐渐从 释放状态到锁定状态。
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公开(公告)号：US09194444B2
公开(公告)日：2015-11-24
申请号：US13625892
申请日：2012-09-25
发明人： Daryl A. Wilton , James M. Hart
IPC分类号： F16D25/06 , F16D25/08 , F16D43/284
CPC分类号： F16D25/06 , F16D25/08 , F16D25/086 , F16D25/087 , F16D43/284 , F16D2300/24
摘要： A powertrain includes an engine, a transmission, a pump for providing pressurized hydraulic fluid and a launch clutch connected between the engine and the transmission for coupling the engine to the transmission when the launch clutch is in an engaged condition and for decoupling the engine from the transmission when the launch clutch is in a disengaged condition. A device is rotationally coupled to the engine and to the pump. The device is translatable along an axis between a first position and a second position. The device moves the launch clutch to the engaged condition when in the first position and does not move the launch clutch to the engaged condition when in the second position. A piston in communication with the pressurized hydraulic fluid provided by the pump is configured to translate the device along the axis between at least one of the first and second positions.
摘要翻译： 动力总成包括发动机，变速器，用于提供加压液压流体的泵和连接在发动机和变速器之间的发射离合器，用于当发射离合器处于接合状态时将发动机耦合到变速器，并且用于将发动机从 当发射离合器处于脱离状态时的传动。 设备旋转地联接到发动机和泵。 该装置可沿第一位置和第二位置之间的轴线平移。 当处于第一位置时，该装置将发射离合器移动到接合状态，并且当处于第二位置时不将起动离合器移动到接合状态。 与由泵提供的加压液压流体连通的活塞被构造成在第一位置和第二位置中的至少一个之间沿轴线平移装置。
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公开(公告)号：US09181995B1
公开(公告)日：2015-11-10
申请号：US14261504
申请日：2014-04-25
发明人： Sarah Thornton , Diana Yanakiev , Dimitar Petrov Filev , Yan Wang , Anuradha Annaswamy , Gregory Michael Pietron
CPC分类号： F16D48/066 , F16D25/06 , F16D25/0638 , F16D2500/3024 , F16D2500/3026 , F16D2500/5012 , F16D2500/70217 , F16D2500/70605 , F16D2500/70657 , F16D2500/7082
摘要： A hydraulically actuated clutch is controlled based on a mathematical model that predicts the position of the clutch piston based on the profile of the commanded pressure over time. During a clutch engagement, a set of delays associated with the preparatory phase of engagement are measured and compared to predicted values. Model parameters are then adaptively adjusted based on the differences between the measured and predicted delays and on an estimate of the sensitivities between model parameters and the delays. Subsequent engagements are controlled based on the updated mathematical model to reduce the delays. Changes in the measured delays following adaptation of the model parameters are utilized to update the estimate of the sensitivities.
摘要翻译： 基于数学模型控制液压致动离合器，该数学模型基于所指示的压力随时间的轮廓来预测离合器活塞的位置。 在离合器接合期间，测量与接合的准备阶段相关联的一组延迟并与预测值进行比较。 然后基于测量和预测延迟之间的差异以及模型参数与延迟之间的敏感度的估计来自适应地调整模型参数。 基于更新的数学模型来控制后续的接合以减少延迟。 利用模型参数调整后的测量延迟的变化来更新灵敏度的估计。
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公开(公告)号：US20150308523A1
公开(公告)日：2015-10-29
申请号：US14261504
申请日：2014-04-25
发明人： SARAH THORNTON , DIANA YANAKIEV , DIMITAR PETROV FILEV , YAN WANG , ANURADHA ANNASWAMY , GREGORY MICHAEL PIETRON
CPC分类号： F16D48/066 , F16D25/06 , F16D25/0638 , F16D2500/3024 , F16D2500/3026 , F16D2500/5012 , F16D2500/70217 , F16D2500/70605 , F16D2500/70657 , F16D2500/7082
摘要： A hydraulically actuated clutch is controlled based on a mathematical model that predicts the position of the clutch piston based on the profile of the commanded pressure over time. During a clutch engagement, a set of delays associated with the preparatory phase of engagement are measured and compared to predicted values. Model parameters are then adaptively adjusted based on the differences between the measured and predicted delays and on an estimate of the sensitivities between model parameters and the delays. Subsequent engagements are controlled based on the updated mathematical model to reduce the delays. Changes in the measured delays following adaptation of the model parameters are utilized to update the estimate of the sensitivities.
摘要翻译： 基于数学模型控制液压致动离合器，该数学模型基于所指示的压力随时间的轮廓来预测离合器活塞的位置。 在离合器接合期间，测量与接合的准备阶段相关联的一组延迟并与预测值进行比较。 然后基于测量和预测延迟之间的差异以及模型参数与延迟之间的敏感度的估计来自适应地调整模型参数。 基于更新的数学模型来控制后续的接合以减少延迟。 利用模型参数调整后的测量延迟的变化来更新灵敏度的估计。
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