-
公开(公告)号：US07338407B2
公开(公告)日：2008-03-04
申请号：US11333079
申请日：2006-01-17
IPC分类号： F16H61/48
CPC分类号： F16H61/20 , F16H2312/06 , Y10T477/6343 , Y10T477/6347 , Y10T477/80
摘要： Provided is an apparatus to enable a torque transmitting mechanism within an automatically shiftable power transmission to disengage at vehicle stop such that the slip within a fluid drive device is reduced. When vehicle movement is required a main pressure regulator trims the torque transmitting mechanism into engagement. A method of reducing engine load at vehicle stop by employing the apparatus of the present invention is also provided.
摘要翻译： 提供了一种能够使自动可移动动力传动装置内的扭矩传递机构能够在车辆停止处脱离从而减小流体驱动装置内的滑移的装置。 当需要车辆移动时，主压力调节器将扭矩传递机构调整成接合。 还提供了通过采用本发明的装置来减少车辆停车时的发动机负荷的方法。
-
公开(公告)号：US5616093A
公开(公告)日：1997-04-01
申请号：US542572
申请日：1995-10-13
IPC分类号： F16H61/00 , F16H61/02 , F16H61/686
CPC分类号： F16H61/0206 , F16H2200/201 , F16H61/686 , Y10T477/69363
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.
-
3.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.
-
5.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。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.019 秒)
