-
公开(公告)号：US5352161A
公开(公告)日：1994-10-04
申请号：US47587
申请日：1993-04-13
CPC分类号： F16H61/061 , F16H2061/0087 , F16H61/08
摘要： A method and apparatus for increased clutch capacity in an automatic vehicle transmission having a nested clutch pair. An electronic control unit controls a pulse width modulator which applies control signals to the actuating solenoid valves of the nested pair of clutches. The electronic control unit operates to reduce the pressure on an engaged clutch of the pair during the period of time that the other clutch is being actuated during the shift. Once the shift is completed, the operating pressure on the previously engaged clutch is restored to a normal operating pressure. Provisions are also made for assuring that the period of time required for the shift is maintained between threshold limits or within a window of time. This adaptive feature precludes excessively short or long shifts.
摘要翻译： 一种用于在具有嵌套离合器对的自动车辆变速器中提高离合器容量的方法和装置。 电子控制单元控制一个脉冲宽度调制器，该调制器向嵌套的一对离合器的致动电磁阀施加控制信号。 电子控制单元操作以在移动期间在另一个离合器被致动的时间段期间减小该对的接合离合器的压力。 一旦换挡完成，先前接合的离合器的操作压力恢复到正常的操作压力。 还规定了确保班次所需的时间段保持在临界极限之间或在时间窗口内。 这种适应性特征排除了过度短暂或长时间的变化。
-
2.发明授权Control system for a transmission with a dual area apply piston for a torque-transmitting mechanism engagement 有权用于具有双面积传动的控制系统用于转矩传递机构接合的活塞公开(公告)号：US08037988B2
公开(公告)日：2011-10-18
申请号：US11862380
申请日：2007-09-27
IPC分类号： F16D25/12
CPC分类号： F16H61/061 , F16D48/02 , F16D2048/0221 , F16H61/0206 , F16H61/686 , F16H2061/062 , Y10T477/6939
摘要： A control system is provided for selectively actuating a dual area apply piston having first and second piston areas each selectively biased by hydraulic pressure within a respective first and second fill cavities. The control system includes a pressure regulator valve, a dual area activation valve, and a solenoid valve operable to selectively and variable operate the pressure regulator valve to effect biasing of the first and second piston areas by communicating hydraulic pressure to the first fill cavity and/or the second fill cavity.
摘要翻译： 提供了一种控制系统，用于选择性地致动具有第一和第二活塞区域的双区域施加活塞，每个活塞区域通过相应的第一和第二填充空腔内的液压选择性地偏置。 控制系统包括压力调节阀，双区域启动阀和可操作以选择性地和可变地操作压力调节阀的电磁阀，以通过将液压与第一填充腔和/ 或第二填充腔。
-
公开(公告)号：US07438660B2
公开(公告)日：2008-10-21
申请号：US11333152
申请日：2006-01-17
IPC分类号： F16H63/04
CPC分类号： F16H61/0021 , F16H2061/0253 , F16K11/07 , Y10T137/7782
摘要： A pressure regulator valve is provided having a valve spool slidably disposed within a stepped bore defined by a valve body. A first pressure responsive surface area is defined on the valve spool and is subject to pressurized fluid from a main pressure source. A second pressure responsive surface area is defined on the valve spool and is subject to pressurized fluid from a control source. Additionally, a third pressure responsive surface area is defined on the valve spool and is selectively subject to pressurized fluid from one of the main pressure source and the control source. A sleeve is slidably disposed within the stepped bore, the sleeve being operable to selectively distribute pressurized fluid from one of the main pressure source and the control source to the third pressure responsive surface area to effect a change in pressure gain of the pressure regulator valve.
摘要翻译： 提供了一种压力调节阀，其具有可滑动地设置在由阀体限定的阶梯孔内的阀芯。 第一压力响应表面区域限定在阀芯上，并且受到来自主压力源的加压流体的影响。 第二压力响应表面积被限定在阀芯上并且受到来自控制源的加压流体的影响。 此外，第三压力响应表面区域被限定在阀芯上，并且选择性地经受来自主压力源和控制源中的一个的加压流体。 套筒可滑动地设置在阶梯孔内，套筒可操作以选择性地将加压流体从主压力源和控制源之一分配到第三压力响应表面区域，以实现压力调节阀的压力增益的变化。
-
公开(公告)号：USRE42131E1
公开(公告)日：2011-02-08
申请号：US12114207
申请日：2008-05-02
IPC分类号： F16H31/00
CPC分类号： F16H61/12 , F16H61/0206 , F16H61/686 , F16H2061/1232 , F16H2061/1268 , F16H2061/1292 , F16H2200/0052 , F16H2200/201
摘要： An electro-hydraulic control mechanism for use with a multi-speed transmission includes a pair of logic valves, which are manipulated during the ratio interchanges and the ratio establishment by aiding in the distribution of fluid pressure from a plurality of trim valves. The logic valves are retained in specific drive ranges in the event of electrical discontinuance.
摘要翻译： 用于多速变速器的电动液压控制机构包括一对逻辑阀，其在比例互换期间被操纵，并且通过帮助来自多个调节阀的流体压力的分配来建立比率。 在断电的情况下，逻辑阀保持在特定的驱动范围内。
-
公开(公告)号：US5195399A
公开(公告)日：1993-03-23
申请号：US834741
申请日：1992-02-13
IPC分类号： F16H61/00
CPC分类号： F16H61/0009 , Y10T137/87885 , Y10T74/2186
摘要： A transmission has alignment and assembly assisting structures for controlling the assembly of a valve body and separator plate with a transmission housing within a family of transmissions. The alignment and assembly assisting structures generally include tabs and locator surfaces, as well as pin locators which prevent a component or subassembly of one family member from being assembled with a different family member.
摘要翻译： 变速器具有对准和组装辅助结构，用于控制具有传动系统内的变速器壳体的阀体和分离板的组装。 对准和组装辅助结构通常包括突片和定位器表面以及防止一个家庭成员的部件或子组件与不同家庭部件组装的销定位器。
-
公开(公告)号：US5119914A
公开(公告)日：1992-06-09
申请号：US776013
申请日：1991-10-15
CPC分类号： F16D48/02 , F16D25/14 , F16D48/066 , F16D2048/0203 , F16D2048/0215 , F16D2048/0221
摘要： An accumulator and relay valve is operable to isolate a fluid operated electric switch from the transient pressure pulses present at the output of a pulse-width-modulated pressure control valve. The accumulator and relay valve is further operable to control a minimum pressure level that is communicated from the pressure control valve to the switch.
-
7.发明申请公开(公告)号：US20090088296A1
公开(公告)日：2009-04-02
申请号：US11862380
申请日：2007-09-27
CPC分类号： F16H61/061 , F16D48/02 , F16D2048/0221 , F16H61/0206 , F16H61/686 , F16H2061/062 , Y10T477/6939
摘要： A control system is provided for selectively actuating a dual area apply piston having first and second piston areas each selectively biased by hydraulic pressure within a respective first and second fill cavities. The control system includes a pressure regulator valve, a dual area activation valve, and a solenoid valve operable to selectively and variable operate the pressure regulator valve to effect biasing of the first and second piston areas by communicating hydraulic pressure to the first fill cavity and/or the second fill cavity.
摘要翻译： 提供了一种控制系统，用于选择性地致动具有第一和第二活塞区域的双区域施加活塞，每个活塞区域通过相应的第一和第二填充空腔内的液压选择性地偏置。 控制系统包括压力调节阀，双区域启动阀和可操作以选择性地和可变地操作压力调节阀的电磁阀，以通过将液压与第一填充腔和/ 或第二填充腔。
-
公开(公告)号：US5601506A
公开(公告)日：1997-02-11
申请号：US543243
申请日：1995-10-13
CPC分类号： F16H61/12 , F16H2059/006 , F16H2061/1232 , F16H2061/1292 , F16H2306/00 , F16H61/686 , Y10S477/906
摘要： Power transmissions incorporate gear ratios including a plurality of forward ratios, a neutral condition and at least one reverse ratio. The establishment of each ratio is controlled by selectively engageable hydraulically operated friction devices, such as clutches and brakes. The interchange between forward ratios is controlled by the interchange of at least one friction device. The control elements to accomplish the establishment and interchange of the ratios include a pressure source, shift valve, solenoid control valves and pressure control valves. The solenoid valves are electrically actuated and the hydraulic portion of the control includes elements that permit continued operation of the transmission in selected ratios in the event of electrical discontinuance. Also provided within the hydraulic control is a pressure knockdown or pressure reducing valve element which operates with one of the shift valves to establish a maximum pressure level in the forward ratios that is less than the maximum pressure level in the reverse ratio.
-
公开(公告)号：US5319949A
公开(公告)日：1994-06-14
申请号：US902153
申请日：1992-06-22
摘要： A regulator valve assembly adapted to be used in conjunction with a torque converter in a vehicular transmission having a pressurized hydraulic distribution system, a cooling system and a torque converter. The regulator valve assembly has a stepped valve chamber to receive a spool valve member for axial translation. The spool valve member defines first, second, third and fourth subchambers within the stepped valve chamber. Axial translation of the valve member effects selective communication between the subchambers. A first land on the spool valve member is interposed between the first and second subchambers. A second land is interposed between the second and third subchambers. A third land is interposed between the third and fourth subchambers, and a fourth land is exposed to the fourth subchamber. A first outlet communicates with the first subchamber. A first inlet and a second outlet communicate with the second subchamber. A second inlet and third outlet communicate with the third subchamber. A third inlet port communicates with the fourth subchamber. The first land exposes a projected area to the second subchamber that is less than the projected area that the second land exposes to the second subchamber. Translation of the spool valve member controls communication between the second and third subchambers as well as between the second and third subchambers. A spring biases the spool valve member in a direction to preclude communication between the first and second subchambers.
摘要翻译： 一种调节阀组件，适于与具有加压液压分配系统，冷却系统和变矩器的车辆变速器中的变矩器一起使用。 调节阀组件具有阶梯式阀室以接收用于轴向平移的滑阀构件。 滑阀构件限定阶梯式阀室内的第一，第二，第三和第四子室。 阀门构件的轴向平移影响了副室之间的选择性通讯。 滑阀构件上的第一焊盘插入在第一和第二子室之间。 在第二和第三子房之间插入第二块土地。 在第三和第四子房之间插入第三个地面，第四个地面露出第四个子房。 第一个出口与第一个子室通信。 第一入口和第二出口与第二子室连通。 第二入口和第三出口与第三子室连通。 第三入口端口与第四子室连通。 第一个地面将第二个小室的投影面积暴露于小于第二个地面暴露于第二个小室的预计面积。 滑阀构件的翻译控制第二和第三子室之间以及第二和第三子室之间的连通。 弹簧沿着阻止第一和第二子室之间的连通的方向偏压滑阀构件。
-
公开(公告)号：US4917140A
公开(公告)日：1990-04-17
申请号：US350188
申请日：1989-05-11
IPC分类号： G05D16/16
CPC分类号： G05D16/166 , Y10T137/2607
摘要： A pressure regulator valve has a valve spool slidably disposed in a valve bore to control the pressure in a hydraulic passage by exhausting excess fluid delivered to the passage. The valve also has a restricted passage which supplies fluid from a main inlet passage to the controlled fluid passage continuously. The restricted passage reduces the amount of valve spool movement required during normal pressure regulation.
摘要翻译： 压力调节阀具有可滑动地设置在阀孔中的阀芯，以通过排出输送到通道的多余流体来控制液压通道中的压力。 阀还具有限制通道，其将流体从主入口通道连续地供应到受控流体通道。 限制通道减少了正常压力调节期间所需的阀芯移动量。
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.025 秒)
