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公开(公告)号：US5950787A
公开(公告)日：1999-09-14
申请号：US937418
申请日：1997-09-25
IPC分类号： F16H3/44 , F16D25/06 , F16D25/063 , F16D43/284 , F16D48/02 , F16H61/02 , F16H63/30
CPC分类号： F16D48/02 , F16D25/06 , F16D25/14 , F16D43/284 , F16H63/3026 , F16D2048/0212 , F16H61/0267
摘要： A rotation clutch device rotates on an axis of an automatic transmission. The rotation clutch device comprises a clutch piston which slides around the axis of the automatic transmission for the engagement of the clutch device. First and second chamber are formed to slide the clutch piston in the direction of the engagement by receiving hydraulic pressure respectively. A cancel chamber is formed opposite to the first and second chambers through the clutch piston to cancel the centrifugal pressure generated in the first and second chambers. A selector valve selectively supplies hydraulic pressure to the first and second chambers according to a selected shift position of the automatic transmission to adapt to a different required engagement capacity in each shift position.
摘要翻译： 旋转离合器装置在自动变速器的轴线上旋转。 旋转离合器装置包括离合器活塞，该离合器活塞围绕自动变速器的轴线滑动，用于离合器装置的接合。 形成第一和第二室，以通过分别接受液压来沿着接合方向滑动离合器活塞。 取消室通过离合器活塞形成为与第一和第二室相对，以消除在第一和第二室中产生的离心压力。 选择阀根据所选择的自动变速器的换档位置选择性地向第一和第二室提供液压，以适应每个换档位置中不同的所需接合能力。
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2.发明授权
公开(公告)号：US5925086A
公开(公告)日：1999-07-20
申请号：US908713
申请日：1997-08-12
CPC分类号： F16H61/061 , F16H59/24 , F16H59/36 , F16H59/40 , F16H59/42 , F16H61/08 , Y10T477/69383
摘要： In apparatus and method for controlling a gear shift of a vehicular automatic transmission, the automatic transmission the automatic transmission having a releasing frictional element, a clutching frictional element, and a source of a releasing working liquid pressure to be applied to the releasing frictional element and a clutching working liquid pressure to be applied to the clutching frictional element, a gear shift in the automatic transmission being carried out by a shift from the releasing frictional element to the clutching frictional element, during a time duration from a time at which a gear shift instruction is outputted to a time at which a torque phase is started, the releasing working liquid pressure is reduced and reached without undershooting to a first predetermined working liquid pressure value under which the releasing frictional element is in a state immediately before an occurrence of a slip and the clutching working liquid pressure is set at least a second predetermined working liquid pressure value under which the clutching element is in a state immediately before a clutching.
摘要翻译： 在用于控制车辆自动变速器的换档的装置和方法中，自动变速器具有释放摩擦元件，离合摩擦元件和释放作用液体的压力源以提供给释放摩擦元件的自动变速器，以及 施加在离合摩擦元件上的离合作用液体压力，在从换档时间起的持续时间内，通过从释放摩擦元件向离合摩擦元件的移动来执行自动变速器中的档位换档 指令被输出到转矩相位开始的时刻，释放工作液体压力下降并达到，而不会下降到第一预定工作液体压力值，在该第一预定工作液体压力值下，释放摩擦元件处于紧急发生滑动之前的状态 并且将所述离合工作液体压力设定为至少第二预定器 挖掘的工作液体压力值，在该工作液压值下，夹紧元件处于紧接着离合之前的状态。
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公开(公告)号：US6023648A
公开(公告)日：2000-02-08
申请号：US888106
申请日：1997-07-03
CPC分类号： F16H61/20 , F16H2061/207 , Y10T477/646
摘要： An anti-creep control apparatus has a forward clutch control section that controls the hydraulic pressure of a forward clutch so as to slip the forward clutch when an automatic transmission is set in a drive range and the vehicle is stopped. The anti-creep control apparatus sets a target engagement time that is inversely proportional to the engine rotation speed at the time just before starting anti-creep control. The anti-creep control apparatus controls an oil pressure modulator so that one of a slip amount of the forward clutch and the output shaft rotation speed of the torque converter becomes nearly zero when the target engagement time elapses.
摘要翻译： 防爬行控制装置具有前进离合器控制部，其将自动变速器设定在驱动范围内并且车辆停止时，控制前进离合器的液压，以使前进离合器滑动。 抗蠕变控制装置设定与开始抗蠕变控制之前的时刻的发动机转速成反比的目标接合时间。 抗蠕变控制装置控制油压调制器，使得当目标接合时间经过时，前进离合器的滑移量和变矩器的输出轴转速中的一个变为几乎为零。
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公开(公告)号：US5916058A
公开(公告)日：1999-06-29
申请号：US898685
申请日：1997-07-22
CPC分类号： F16H61/20 , F16H2059/467 , F16H2061/207 , Y10T477/681
摘要： An anti-creep control apparatus of an automatic transmission has a forward clutch control section which controls the hydraulic pressure of a forward clutch by slipping the forward clutch when the automatic transmission is set in a drive range and the vehicle is stopped while an engine is operating. The anti-creep control apparatus controls an hydraulic pressure of the forward clutch to be held or increased by a predetermined value when a relative rotation of the forward clutch is detected during the anti-creep control. The controlled hydraulic pressure is set as a lower limit value of the forward clutch hydraulic pressure in a present anti-creep control.
摘要翻译： 自动变速器的防蠕变控制装置具有前进离合器控制部，该前进离合器控制部，当将自动变速器设定在驱动范围内并且在发动机运转时车辆停止时，通过使前进离合器滑动来控制前进离合器的液压 。 防蠕变控制装置在抗蠕变控制期间检测到前进离合器的相对旋转时，控制要保持或增加的前进离合器的液压预定值。 在目前的抗蠕变控制中，控制液压被设定为前进离合器液压的下限值。
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公开(公告)号：US5906559A
公开(公告)日：1999-05-25
申请号：US887841
申请日：1997-07-03
CPC分类号： F16H61/20 , B60W2550/142 , B60W30/18118 , F16H2059/663 , F16H2061/205 , F16H2061/207 , Y10T477/646 , Y10T477/681
摘要： An automatic transmission with an anti-creep control apparatus includes a torque converter connected to the engine, first and second friction elements, and a control unit. The first friction element is operated when the automatic transmission is put in a drive range. The second friction element performs to prevent a reverse rotation of an output shaft of the automatic transmission. The control unit executes an anti-creep control controls, controlling the second friction element to prevent a reverse rotation of an output shaft of the automatic transmission when the anti-creep control is executed, holds the engagement of the second friction element during a time period from the time when the anti-creep control is cancelled to the time when the first friction element is fully engaged, and disengages the second friction element thereafter.
摘要翻译： 具有防蠕变控制装置的自动变速器包括连接到发动机，第一和第二摩擦元件以及控制单元的变矩器。 当自动变速器置于驱动范围内时，第一摩擦元件被操作。 第二摩擦元件执行以防止自动变速器的输出轴的反向旋转。 控制单元执行抗蠕变控制控制，控制第二摩擦元件，以防止在执行抗蠕变控制时自动变速器的输出轴的反向旋转，在一段时间内保持第二摩擦元件的接合 从抗蠕变控制被取消到第一摩擦元件完全接合时，并且此后脱离第二摩擦元件。
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公开(公告)号：US5938563A
公开(公告)日：1999-08-17
申请号：US25256
申请日：1998-02-18
IPC分类号： F16H61/04 , F16H61/08 , F16H61/686
CPC分类号： F16H61/0437 , F16H2061/0488 , F16H2312/02 , F16H61/08 , F16H61/686 , Y10T477/6895
摘要： A shift control apparatus of an automatic transmission executes a transient control of an engagement pressure of a first speed selecting friction element when a first speed is selected after a higher speed is once selected during a change from a neutral range to a forward drive range. A band brake pressure for selecting the second speed is rapidly increased at a first moment. A forward clutch pressure for selecting the first speed is increased at a second moment delaying to the first moment by a predetermined period adjusted to a line pressure lowered period. The forward clutch pressure is pre-charged during a period between the first and second moments, then being hold for a preset time period at a return spring corresponding pressure adjusted by a leaning control, and being increased by a slope adjusted by the leaning control for a predetermined period to establish the second speed by the engagement of the forward clutch. Then, the band brake pressure is rapidly decreased and further decreased by a slope to disengage the band brake in order to establish the first speed.
摘要翻译： 自动变速器的变速控制装置，在从中立档位向正向行驶档位的变更期间，一旦选择了高速，则选择第一速度时，对第一速度选择摩擦元件的接合压力进行暂态控制。 用于选择第二速度的带制动压力在第一时刻迅速增加。 用于选择第一速度的前进离合器压力在延迟到第一时刻的调整到行压降低期间的预定周期的第二时刻增加。 前进离合器压力在第一和第二力矩之间的期间被预充电，然后在由倾斜控制调整的复位弹簧对应压力下保持预设时间段，并且通过倾斜控制调整的斜率增加 通过前进离合器的接合来建立第二速度的预定时间段。 然后，频带制动压力迅速下降，并进一步减小斜率以使带制动器脱离，以便建立第一速度。
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公开(公告)号：US06409625B1
公开(公告)日：2002-06-25
申请号：US09708706
申请日：2000-11-09
IPC分类号： F16H3702
CPC分类号： F16H37/086 , F16H15/38 , F16H61/6648 , F16H2037/088
摘要： A toroidal continuously variable transmission (1) comprises power rollers (18C, 18D, 20C, 20D) which transmit a torque between input disks (18A, 20A) and output disks (20A, 20B), and trunnions (104, 105, 114, 115) which drive the power rollers (18C, 18D, 20C, 20D) in a perpendicular direction to a rotation shaft (16A) according to a differential pressure between a first oil chamber (101) and a second oil chamber (102). When the second oil chamber (102) is at higher pressure than the first oil chamber (101), the toroidal continuously variable transmission (1) causes a downshift, and when the first oil chamber (101) is at higher pressure than the second oil chamber (102), the toroidal continuously variable transmission (1) causes an upshift. The first oil chamber (101) is connected to a first passage (176) and the second oil chamber (102) is connected to a second passage (177). A speed ratio control valve (70, 70A) controls a direction and a flowrate of the first passage (176) and the second passage (177). A pressure control valve (200, 210, 220, 40, 45, 41, 46) limits a maximum differential pressure of the first oil chamber (101) and the second oil chamber (102) when the transmission (1) causes a downshift to be less than a maximum differential pressure of the first oil chamber (101) and the second oil chamber (102) when the transmission (1) causes an upshift. This arrangement prevents a sharp downshift of the toroidal continuously variable transmission (1) due to a fault or incorrect operation.
摘要翻译： 环形无级变速器（1）包括在输入盘（18A，20A）和输出盘（20A，20B）之间传递扭矩的动力辊（18C，18D，20C，20D）和耳轴（104,105,114， 115），其根据第一油室（101）和第二油室（102）之间的压差沿垂直于旋转轴（16A）的方向驱动动力辊（18C，18D，20C，20D）。 当第二油室（102）处于比第一油室（101）更高的压力时，环形无级变速器（1）导致降档，并且当第一油室（101）处于比第二油室 室（102），环形无级变速器（1）导致升档。 第一油室（101）连接到第一通道（176），第二油室（102）连接到第二通道（177）。 速比控制阀（70,70A）控制第一通道（176）和第二通道（177）的方向和流量。 压力控制阀（200,210,220,40,45,41,46）限制了当变速器（1）导致降档到第一油室（101）和第二油室（102）时的最大压差 小于当变速器（1）升档时第一油室（101）和第二油室（102）的最大压差。 这种布置防止由于故障或不正确的操作导致的环形无级变速器（1）的急速降档。
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公开(公告)号：US06569052B2
公开(公告)日：2003-05-27
申请号：US09887094
申请日：2001-06-25
IPC分类号： F16H3702
CPC分类号： F16H61/6648 , F16H37/086 , F16H2037/088
摘要： In an infinitely variable transmission, a continuously variable transmission (2) outputs the rotation of an input shaft (1) at an arbitrary speed ratio, and a fixed speed ratio transmission (3) outputs the rotation of the input shaft (1) at a fixed speed ratio. A planetary gear set (5) varies the rotation direction and speed of the output shaft (6) according to the difference of the output rotation speed of the fixed speed ratio transmission (2) and the output rotation speed of the continuously variable transmission (2). A sensor (81) which detects the rotation speed of the input shaft (1) and a sensor (82) which detects the output rotation speed of the continuously variable transmission (2) are provided, and a microprocessor (80) precisely calculates the rotation direction and rotation speed of the output shaft (6) from these rotation speeds.
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公开(公告)号：US06287232B1
公开(公告)日：2001-09-11
申请号：US09459922
申请日：1999-12-14
申请人： Hiromasa Sakai , Motoharu Nishio
发明人： Hiromasa Sakai , Motoharu Nishio
IPC分类号： F16H3714
CPC分类号： F16H61/6648 , F16H37/086 , F16H61/664 , F16H2037/088 , F16H2061/6614
摘要： In a non-finite speed ratio transmission device using a toroidal continuously variable transmission (2), a hydraulic cylinder (30) for driving a power roller (20) via a trunnion (23), a shift control valve (46) for controlling a supply direction of oil to an oil chambers (30A, 30B) of the hydraulic cylinder (30), and a precess cam (35) which feeds back a displacement of the power roller (20) to the shift control valve (46) so as to shut-off the flow of oil to and from the oil chambers (30A, 30B), are provided. The shift control valve (46) comprises a drain port (46J) which can be connected to the oil chamber (30A) and a drain port (46I) which can be connected to the oil chamber (30B). By providing a positive torque control valve (40) which controls the oil pressure of the drain port (46I), and a negative torque control valve (45) which controls the oil pressure of the drain port (46J), the shift control valve (46) controls a differential pressure &Dgr;P of the oil chambers (30A, 30B) from 0 to a line pressure PL when the speed ratio ic of the toroidal continuously variable transmission (2) is maintained in the vicinity of a geared neutral position GNP.
摘要翻译： 在使用环形无级变速器（2）的非有限速比传动装置中，经由耳轴（23）驱动动力辊（20）的液压缸（30），用于控制 向液压缸（30）的油室（30A，30B）供给油的方向，以及将动力辊（20）的位移反馈到换挡控制阀（46）的进动凸轮（35），以便 以便将油流向油室（30A，30B）切断。 变速控制阀（46）包括能够连接到油室（30A）的排出口（46J）和能够连接到油室（30B）的排出口46I。 通过设置控制排水口（46I）的油压的正转矩控制阀（40）和控制排水口（46J）的油压的负转矩控制阀（45），变速控制阀（ 46）当环形无级变速器（2）的速比ic保持在齿轮空档位置GNP附近时，将油室（30A，30B）的压差DELTAP从0控制到管路压力PL。
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公开(公告)号：US5935039A
公开(公告)日：1999-08-10
申请号：US35730
申请日：1998-03-05
申请人： Hiromasa Sakai , Motoharu Nishio
发明人： Hiromasa Sakai , Motoharu Nishio
CPC分类号： F16H37/086 , F16H2037/088 , F16H61/0272 , Y10T477/619
摘要： The same rotation torque is input to a continuously variable transmission of a vehicle which continuously varies a speed change ratio and a reduction gear unit. A planetary gear mechanism is provided comprising an output shaft which varies a rotation direction according to a relation between the output speed of the continuously variable transmission and the output speed of the reduction gear unit. The continuously variable transmission varies the speed change ratio according to an oil pressure balance between two oil chambers. A direction change-over valve selectively supplies a first oil pressure and a second oil pressure to these oil chambers, and a control valve controls a differential pressure of the first oil pressure and second oil pressure. The control range of the differential pressure controlled by the control valve is narrowed due to reversal of the oil pressure supply direction by the direction change-over valve according to whether the vehicle is moving forward or in reverse, and control precision is thereby improved.
摘要翻译： 相同的转矩被输入到连续变化变速比的车辆的无级变速器和减速装置。 行星齿轮机构包括输出轴，该输出轴根据无级变速器的输出速度与减速齿轮单元的输出速度之间的关系来改变旋转方向。 无级变速器根据两个油室之间的油压平衡来改变变速比。 方向切换阀选择性地向这些油室提供第一油压和第二油压，并且控制阀控制第一油压和第二油压的压差。 控制阀控制的压差的控制范围由于车辆向前或向后移动而由于方向转换阀的油压供给方向的反转而变窄，从而提高了控制精度。
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