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1. 发明授权

US5588327A Multiplexed hydraulic clutch control 失效
标题翻译：多路液压离合器控制
公开(公告)号：US5588327A
公开(公告)日：1996-12-31
申请号：US533571
申请日：1995-09-25
申请人： Robert C. Downs , James K. Mainquist , Larry T. Nitz , William L. Aldrich, III
发明人： Robert C. Downs , James K. Mainquist , Larry T. Nitz , William L. Aldrich, III
IPC分类号： F16H59/68 , F16H61/00 , F16H61/04 , F16H61/06 , F16H61/08 , F16H61/12
CPC分类号： F16H61/061 , F16H2059/6807 , F16H2061/0485 , F16H61/0021 , F16H61/08 , F16H61/12 , Y10T477/69387 , Y10T74/19251
摘要： A five-speed parallel-shaft clutch-to-clutch shifting automatic transmission has an hydraulically responsive clutch priority valve effective to exhaust fluid pressure from lower priority clutches upon undesirable simultaneous application two or more clutches. Two clutches associated with numerically nonadjacent gear ratios are supplied fluid pressure from a single solenoid controlled fluid valve vis-a-vis a two mutually exclusive state multiplex valve. The clutch priority valve is interposed between the solenoid controlled fluid valve and the multi-plex valve thereby rendering the two clutch states associated with the single solenoid valve indistinguishable by the clutch priority valve. A fluid pressure control provides for a clutch priority valve override to prevent undesirable exhausting of the desired clutch supplied via the multi-plexed solenoid controlled fluid valve which otherwise may occur upon shifting to one of the two gear ratios corresponding to one of the two clutches supplied by the multi-plexed valve.
摘要翻译：五速平行轴离合器离合器换档自动变速器具有液压响应的离合器优先阀，其有效地在不期望的同时施加两个或更多个离合器时排出来自较低优先级离合器的流体压力。与数字不相邻齿轮比相关联的两个离合器相对于两个相互排斥的状态复用阀从单个电磁控制流体阀提供流体压力。离合器优先阀插入在电磁控制流体阀和多重阀之间，从而使得与单个电磁阀相关联的两个离合器状态由离合器优先阀不能区分。流体压力控制提供离合器优先阀超控，以防止通过多重电枢电磁控制的流体阀供应的期望离合器的不期望的排出，否则可能在转换到对应于所提供的两个离合器之一的两个齿轮比中的一个时发生通过多路阀。

2. 发明授权

US5046592A Servo shift control for a forward/reverse mechanism 失效
标题翻译：前进/后退机构的伺服换档控制
公开(公告)号：US5046592A
公开(公告)日：1991-09-10
申请号：US593728
申请日：1990-10-05
申请人： James K. Mainquist , Robert C. Downs , Larry T. Nitz
发明人： James K. Mainquist , Robert C. Downs , Larry T. Nitz
IPC分类号： B60K23/00 , F16H61/02 , F16H61/16 , F16H61/682 , F16H63/30
CPC分类号： F16H63/3023 , F16H61/0246 , F16H2061/0255 , F16H61/682 , Y10T74/19488
摘要： A mechanical clutch is provided to selectively interconnect a forward or reverse gear member to a transmission shaft. The clutch is operated by a servo piston and fork structure. The servo piston is slidably disposed in a housing and urged in the forward select position by a spring. The housing and servo piston cooperate to define two fluid chambers which are maintained in a separated condition when the forward select position is established. One chamber is in fluid communication with a fluid system that is controlled to provide fluid at two distinct pressure levels, depending upon various vehicle operating parameters. The other chamber is connected with a selectively engageable fluid operated friction clutch which is effective to assist in establishing at least the reverse drive ratio within the transmission. The lowest level of fluid pressure in the one chamber is not sufficient to cause the piston to overcome the spring force and thereby move the clutch to the reverse select position. The second pressure level is, however, sufficient to cause such movement. In the reverse select position, the chambers are fluidly interconnected and the fluid clutch can be engaged by the fluid pressure supplied through the second chamber from the first chamber.

3. 发明授权

US4707789A Adaptive direct pressure shift control for a motor vehicle transmission 失效
标题翻译：适用于汽车变速箱的直接压力换档控制
公开(公告)号：US4707789A
公开(公告)日：1987-11-17
申请号：US802676
申请日：1985-11-29
申请人： Robert C. Downs , Larry T. Nitz , Joseph L. Wanamaker
发明人： Robert C. Downs , Larry T. Nitz , Joseph L. Wanamaker
IPC分类号： B60W10/00 , B60W10/10 , F16H59/68 , F16H61/00 , F16H61/02 , F16H61/06 , F16H61/08 , F16H61/10 , F16H61/12 , B60K41/08
CPC分类号： F16H61/061 , F16H2059/6807 , F16H2061/0087 , F16H2061/0255 , F16H61/06 , F16H61/08 , Y10T477/69383 , Y10T477/69387
摘要： An adaptive shift control system for regulating the operation of a fluid operated torque establishing device associated with a specified speed ratio in a motor vehicle automatic transmission. Shifting from a currently engaged speed ratio to the specified speed ratio includes a preparation phase during which fluid is supplied to the torque establishing device for a predetermined time to fill the same in preparation for torque transmission, and a completion phase during which further fluid is supplied to the device to initiate and progressively increase the transmission of torque therethrough. The change in transmission input speed due to the initiation of torque transmission through the torque establishing device is identified and used to detect the occurrence of overfill or underfill conditions. The predetermined time is adjusted based on such detection so as to adaptively compensate for sources of error which degrade the shift quality by causing overfill or underfill conditions.
摘要翻译：一种用于调节与机动车辆自动变速器中的指定速比相关联的流体操作的扭矩建立装置的操作的自适应变速控制系统。从目前接合的速比向指定的速比变化包括准备阶段，在该准备阶段期间将流体供应到扭矩建立装置预定时间以填充它以准备扭矩传递，以及完成阶段，在该阶段期间提供另外的流体以启动并逐渐增加通过其的扭矩的传递。识别由于通过扭矩建立装置启动转矩传递引起的变速器输入速度的变化，并用于检测溢出或底部填充条件的发生。基于这种检测来调整预定时间，以便通过引起溢出或底部填充条件自适应地补偿降低换档质量的误差源。

4. 发明授权

US4653351A Clutch-to-clutch power-on downshifting in a motor vehicle automatic transmission 失效
标题翻译：离合器离合器开机降档在机动车辆自动变速器中
公开(公告)号：US4653351A
公开(公告)日：1987-03-31
申请号：US828861
申请日：1986-02-12
申请人： Robert C. Downs , Larry T. Nitz
发明人： Robert C. Downs , Larry T. Nitz
IPC分类号： B60K20/02 , B60W10/02 , B60W10/10 , F16D48/02 , F16H59/38 , F16H59/68 , F16H61/00 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/14 , B60K41/18 , B60K41/16
CPC分类号： F16H61/061 , F16H2059/385 , F16H2059/6807 , F16H2061/0078 , F16H2061/0087 , F16H2061/0477 , Y10T477/693754 , Y10T477/693762
摘要： A clutch-to-clutch power-on downshift in a motor vehicle automatic transmission is effected by reducing the torque capacity of the off-going clutching device to permit the transmission input speed to increase toward a target speed which it will finally attain subsequent to the shift; increasing the torque capacity of the off-going clutching device and preparing the on-coming clutching device when the input speed approaches its target speed so that the input speed is held near the target speed by the time the on-coming clutching device is prepared to transmit torque; and concurrently applying and releasing the on-coming and off-going clutching device to complete the shift. Since the input speed is substantially at its target value when the exchange of clutching devices occurs, a high quality shift with minimal driveline torque disruption results.
摘要翻译：机动车辆自动变速器中的离合器离合器通电降档是通过减小离合式离合装置的扭矩容量来实现的，以允许变速器输入速度朝着最终达到的目标速度增加，转移; 当输入速度接近其目标速度时，增加离合离合装置的转矩容量，并准备接近的离合装置，使得输入速度在即将到来的离合装置准备好时保持在目标速度附近传递扭矩; 同时应用和释放即将来临的离合器，完成班次。由于当交换离合装置时输入速度基本上达到其目标值，因此产生了具有最小传动系扭矩破坏的高质量位移。

5. 发明授权

US4653350A Adaptive direct pressure shift control for a motor vehicle transmission 失效
标题翻译：适用于汽车变速箱的直接压力换档控制
公开(公告)号：US4653350A
公开(公告)日：1987-03-31
申请号：US802677
申请日：1985-11-29
申请人： Robert C. Downs , Larry T. Nitz , Joseph L. Wanamaker
发明人： Robert C. Downs , Larry T. Nitz , Joseph L. Wanamaker
IPC分类号： B60W10/04 , B60W10/00 , B60W10/02 , B60W10/10 , F16H61/00 , F16H61/02 , F16H61/06 , F16H61/08 , F16H61/10 , F16H61/12 , B60K17/12 , B60K20/16 , G06F15/50
CPC分类号： F16H61/061 , F16H2061/0087 , F16H2061/0255 , F16H2061/0477 , F16H61/08 , Y10T477/69383
摘要： An adaptive shift control system for regulating the operation of a fluid operated torque establishing device associated with a specified speed ratio in a motor vehicle automatic transmission. Shifting from a currently engaged speed ratio to the specified speed ratio includes a completion phase during which fluid is supplied to the torque establishing device in accordance with a predetermined pressure schedule to initiate and progressively increase the transmission of torque therethrough. The time required to complete a specified portion of the speed ratio progression is identified and compared to a reference time representative of the time required to complete the progression when the shift quality is not degraded. The predetermined pressure schedule is adjusted based on such comparison so as to adaptively compensate for sources of error which affect the increase of torque transmission through the torque establishing device during the completion phase and cause the shift quality to be degraded.
摘要翻译：一种用于调节与机动车辆自动变速器中的指定速比相关联的流体操作的扭矩建立装置的操作的自适应变速控制系统。从目前接合的变速比转换到指定的速比包括完成阶段，在该完成阶段期间，根据预定的压力计划将流体提供给转矩建立装置，以启动并逐渐增加通过其中的扭矩的传递。识别完成速度比进度的指定部分所需的时间，并将其与表示当换档质量不降级时完成进度所需时间的参考时间进行比较。基于这样的比较来调整预定的压力调度，以便在完成阶段期间自适应地补偿影响通过转矩建立装置的转矩传递的增加的误差源，并且导致变速质量下降。

6. 发明授权

US5347886A Lubrication control with increased lubrication during shift and during cruise for a multi-plate friction device for an automatic transmission 失效
标题翻译：用于自动变速器的多板摩擦装置的换挡和巡航期间增加的润滑润滑控制
公开(公告)号：US5347886A
公开(公告)日：1994-09-20
申请号：US927106
申请日：1992-08-10
申请人： James K. Mainquist , Robert C. Downs , Larry T. Nitz , Kyle K. Kinsey
发明人： James K. Mainquist , Robert C. Downs , Larry T. Nitz , Kyle K. Kinsey
IPC分类号： F16H57/04 , F16H61/00 , B60K41/10
CPC分类号： F16H57/0413 , F16H57/0434 , F16H57/0473 , F16H61/00 , Y10T477/69395 , Y10T477/693964
摘要： A lubrication system for multi-plate clutch assemblies is controlled to provide increased lube flow. During steady state operation, lube flow is increased periodically for a short time interval. At other times during steady state operation, the lube flow is maintained at a level requiring minimum fluid flow for the system.
摘要翻译：控制多板离合器组件的润滑系统以提供增加的润滑剂流。在稳态运行中，润滑油流量在短时间内周期性增加。在稳态运行的其他时间，润滑油流量维持在系统所需的最小流体流量的水平。

7. 发明授权

US4671139A Clutch-to-clutch coast downshifting in a motor vehicle automatic transmission 失效
标题翻译：离合器离合器在机动车辆自动变速器中降档
公开(公告)号：US4671139A
公开(公告)日：1987-06-09
申请号：US822397
申请日：1986-01-27
申请人： Robert C. Downs , Larry T. Nitz , Frederick K. Reichert , Joseph L. Wanamaker
发明人： Robert C. Downs , Larry T. Nitz , Frederick K. Reichert , Joseph L. Wanamaker
IPC分类号： F16H61/08 , F16H59/18 , F16H59/38 , F16H59/46 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/21 , F16H61/684 , F16H63/42 , B60K41/06
CPC分类号： F16H61/061 , F16H2059/186 , F16H2059/385 , F16H2059/467 , F16H2061/0255 , F16H2061/044 , F16H61/08 , F16H61/21 , F16H61/684 , Y10T477/693754 , Y10T477/693762 , Y10T74/19153
摘要： Clutch-to-clutch downshifts in the course of a coast mode of operation are effected by releasing the off-going clutching device at a time determined in relation to the vehicle speed and deceleration rate, and applying the on-coming clutching device a predetermined time thereafter such that the apply occurs when the engine speed is substantially equal to the transmission input speed in the downshifted speed ratio. The predetermined time defines an neutral interval during which the on-coming clutching device is filled with hydraulic fluid in preparation for engagement, and the engine speed assumes its neutral idle value. At the end of the predetermined time, the engine speed and the transmission input speed in the downshifted speed ratio are at the neutral idle value, and the on-coming clutching device is applied to complete the shift.
摘要翻译：在惯性操作过程中离合器离合器降挡通过在相对于车速和减速率确定的时间释放脱离的离合装置来实现，并将预定的离合装置施加预定的时间此后，当发动机速度基本上等于以换档速度比的变速器输入速度时发生应用。预定时间限定了中间间隔，在此期间，前进的离合装置充满液压流体以准备接合，并且发动机转速呈现其中性空档值。在预定时间结束时，降档变速比中的发动机转速和变速器输入速度处于中性怠速值，并且应用前进的离合装置来完成换档。

8. 发明授权

US5186065A Multi-ratio power transmission 失效
标题翻译：多比动力传动
公开(公告)号：US5186065A
公开(公告)日：1993-02-16
申请号：US812291
申请日：1991-12-23
申请人： Robert C. Downs
发明人： Robert C. Downs
IPC分类号： B60K17/08 , B62M11/06 , F16H3/08 , F16H3/091 , F16H3/093 , F16H3/10
CPC分类号： F16H3/093 , F16H3/091 , F16H2003/0938 , F16H3/10 , Y10T74/19084 , Y10T74/19233 , Y10T74/19647
摘要： A power transmission has an input shaft, an output shaft and a transfer or secondary input shaft disposed on parallel noncoaxial axes. A transfer gear train including a gear member supported on each axis is connectible to the input shaft through a forward friction clutch for drivingly connecting the input shaft and the transfer shaft through a one-way drive connection to the output shaft. The transfer gear train provides the first and lowest forward drive ratio between the input and output shafts through the one-way drive connection. A plurality of friction clutches on the input and transfer shafts and associated reaction gears on the shafts are selectively operable to provide a plurality of higher forward ratios during which the one-way device permits the output shaft to overcome the transfer gear mounted thereon.
摘要翻译：动力传动装置具有输入轴，输出轴和设置在平行非同轴轴上的传动或二次输入轴。包括支撑在每个轴上的齿轮构件的传动齿轮系通过前摩擦离合器连接到输入轴，用于通过单向驱动连接驱动地连接输入轴和输送轴到输出轴。传动齿轮系通过单向驱动连接提供输入和输出轴之间的第一和最低的前进驱动比。在轴上的输入和传送轴和相关联的反作用齿轮上的多个摩擦离合器可选择性地可操作以提供多个较高的前进比，在此期间单向装置允许输出轴克服安装在其上的传动齿轮。

9. 发明授权

US06827113B2 Massively parallel fluid dispensing systems and methods 失效
标题翻译：大规模并行流体分配系统和方法
公开(公告)号：US06827113B2
公开(公告)日：2004-12-07
申请号：US10109582
申请日：2002-03-27
申请人： Robert C. Downs , Mark R. Weselak
发明人： Robert C. Downs , Mark R. Weselak
IPC分类号： B05C100
CPC分类号： B01F13/1055 , B01J19/0046 , B01J2219/00315 , B01J2219/00353 , B01J2219/00355 , B01J2219/0036 , B01J2219/00378 , B01J2219/00412 , B01J2219/00689 , B01J2219/00691 , B01J2219/00756 , B01L3/0293 , B01L3/5085 , B01L9/00 , C30B7/00 , C30B29/58 , C40B60/14 , G01N35/1074
摘要： The present invention provides highly automated fluid delivery systems and related methods with significantly improved throughput relative to preexisting technologies. In particular, the invention relates to a fluid dispensing system that simultaneously produces multiple fluid mixtures on-the-fly in multiple multiwell plates. The invention also includes control system and machine software in addition to various systems and related methods for performing assorted downstream processes.
摘要翻译：本发明提供了高度自动化的流体输送系统和相关方法，其相对于预先存在的技术具有显着提高的产量。特别地，本发明涉及在多个多孔板中同时产生多个流体混合物的流体分配系统。除了用于执行各种下游处理的各种系统和相关方法之外，本发明还包括控制系统和机器软件。

10. 发明授权

US06709872B1 Method and apparatus for dispensing low nanoliter volumes of liquid while minimizing waste 失效
标题翻译：用于分配低纳升体积的液体同时最小化废物的方法和设备
公开(公告)号：US06709872B1
公开(公告)日：2004-03-23
申请号：US09562652
申请日：2000-05-02
申请人： Robert C. Downs , Mark R. Weselak
发明人： Robert C. Downs , Mark R. Weselak
IPC分类号： G01N110
CPC分类号： B01L3/0241 , B01L3/021 , B01L2300/0829 , B01L2400/024 , B01L2400/0487 , Y10T436/2575
摘要： There is provided a method and apparatus for aspirating a volume of liquid into a syringe from a sample of the liquid. A substantial portion of the liquid in the syringe is subsequently dispensed from the syringe and returned to the sample. Accordingly, a small portion of the aspirated liquid is retained in the syringe. One or more nanoliter volumes of the liquid retained in the syringe are then dispensed from the syringe to a container for further use or analysis. It will be understood, therefore, that the volume of the originally aspirated liquid is substantially larger than the volume of liquid dispensed for further use or analysis. The invention also includes a method and apparatus for aspirating and dispensing a plurality of liquids by using a plurality of syringes, and also can be used to dispense liquids onto microplates.
摘要翻译：提供了一种从液体样品中将一定体积的液体吸入注射器的方法和装置。随后将注射器中的大部分液体从注射器分配并返回到样品。因此，吸入的液体的一小部分被保留在注射器中。然后将保持在注射器中的一个或多个纳升体积的液体从注射器分配到用于进一步使用或分析的容器中。因此，应当理解，最初吸入的液体的体积大大地大于分配用于进一步使用或分析的液体的体积。本发明还包括通过使用多个注射器吸取和分配多种液体的方法和装置，并且还可用于将液体分配到微孔板上。

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