公开(公告)号：US4843902A

公开(公告)日：1989-07-04

申请号：US208798

申请日：1988-06-16

申请人： Jon R. Patton ,  Robert W. Harris

发明人： Jon R. Patton ,  Robert W. Harris

IPC分类号： F16H61/02 ,  F16H61/06

CPC分类号： F16H61/0246 ,  F16H61/061 ,  F16H61/0206 ,  Y10T74/19251 ,  Y10T74/19405

摘要： A control system for a multi-speed powershift gear transmission having multiple hydraulically actuated speed range clutches and directional clutches includes a control valve module having solenoid operated valves for conducting pressure fluid to a selected one of the speed range clutches and a selected one of the directional clutches. A pressure regulator valve is in circuit with the directional clutch control valves and is acted on by pilot pressure fluid controlled by a proportional solenoid type control valve wherein the pressure rate of rise in the directional clutches may be selectively controlled in accordance with the particular shift condition initiated and based on a previous transmission operating condition. The control unit provides for a predetermined pressure rate of rise signal to the pressure regulator valve based on the selected shift condition and the previous operating condition of the transmission.

摘要翻译： 一种用于具有多个液压驱动速度范围离合器和方向离合器的多速动力换挡齿轮传动装置的控制系统，包括具有电磁操作阀的控制阀模块，用于将压力流体传导到所选择的一个速度范围离合器中，并且所选择的一个方向 离合器 压力调节阀与定向离合器控制阀在一起，并且由比例电磁式控制阀控制的先导压力流体作用，其中可以根据特定的换档条件选择性地控制方向离合器的上升压力 发起并基于先前的传输操作条件。 控制单元基于所选择的换档条件和变速器的先前操作条件向压力调节阀提供预定的上升信号压力率。

公开(公告)号：US5261456A

公开(公告)日：1993-11-16

申请号：US970759

申请日：1992-11-02

申请人： Jon R. Patton ,  Robert W. Harris

发明人： Jon R. Patton ,  Robert W. Harris

IPC分类号： F16H61/00 ,  F15B13/04 ,  F15B13/043 ,  F16H59/02 ,  F16H59/08 ,  F16H61/02 ,  F16H61/18 ,  F15B13/044

CPC分类号： F16H61/0251 ,  F15B13/0402 ,  F15B13/0431 ,  F16H61/18 ,  F16H2059/088 ,  F16H2061/168 ,  F16H59/0217 ,  Y10T137/86614 ,  Y10T137/86622

摘要： A transmission control system includes a plurality of hydraulic pressure operated control elements for engaging a gear of the transmission in response to actuation of a shift control lever having neutral and non-neutral positions, a plurality of control valves for controlling pressurization of the control elements and a pump for supplying pressurized fluid to the control valves. An engagement override system includes a switch which is coupled to the shift lever and which energizes a solenoid when the shift lever is in its neutral position and de-energizes the solenoid when the shift lever is in its non-neutral position. In a preferred embodiment, an engagement override valve includes a pilot operated valve which controls communication between the pump, a reservoir and the pressure operated control elements. The solenoid controls the pilot operated valve. The valve also includes a pilot chamber which is pressurized to move the valve to and hold the valve in a position wherein the pump is communicated with the pressure operated control elements.

摘要翻译： 变速器控制系统包括多个液压操作的控制元件，用于响应于具有中立和非中立位置的变速控制杆的致动而接合变速器的齿轮;多个控制阀，用于控制控制元件的加压;以及 用于将压力流体供应到控制阀的泵。 接合超驰系统包括联接到变速杆的开关，并且当变速杆处于其中立位置时对螺线管通电，并且当变速杆处于其非中立位置时使螺线管断电。 在优选实施例中，接合超控阀包括先导操作阀，其控制泵，储存器和压力控制元件之间的连通。 螺线管控制先导阀。 该阀还包括先导室，其被加压以将阀移动并保持阀处于泵与压力控制元件连通的位置。

公开(公告)号：US4150737A

公开(公告)日：1979-04-24

申请号：US821277

申请日：1977-08-03

申请人： Jon R. Patton

发明人： Jon R. Patton

IPC分类号： B60T11/10 ,  F16D67/04 ,  B60K41/24 ,  F16D67/02

CPC分类号： F16D67/04 ,  B60T11/103 ,  B60W10/02 ,  B60W10/18 ,  Y10T137/2607 ,  Y10T137/7782 ,  Y10T137/8659

摘要： In a control apparatus, for a vehicle having a transmission and brake means wherein hydraulic passage means connects a source of fluid pressure to a fluid actuated clutch, an improved inching valve interposed in said passage means for selectively reducing the hydraulic pressure supplied to the clutch in proportion to the degree of actuation of the brake means in two successive stages wherein there is no direct initial mechanical connection between the inching valve spool and its actuating means whereby in the first stage of operation the solely hydraulical connection between the actuating means and the spool member positively restricts the operation of the improved inching valve to pressures below the maximum desired clutch slip pressure and wherein during the second stage of operation, the clutch pressure is further reduced to a minimum slip pressure.

摘要翻译： 在控制装置中，对于具有变速器和制动装置的车辆，其中液压通道装置将流体压力源连接到流体致动的离合器，改进的止动阀插入所述通道装置中，用于选择性地降低供应给离合器的液压 与两个连续阶段中的制动装置的致动程度成比例，其中在微动阀芯和其致动装置之间没有直接的初始机械连接，由此在第一操作阶段中，致动装置和卷轴构件之间的单独的液压连接 积极地将改进的微动阀的操作限制在低于最大期望离合器滑移压力的压力下，并且其中在第二操作阶段期间，离合器压力进一步减小到最小滑动压力。

公开(公告)号：US3977424A

公开(公告)日：1976-08-31

申请号：US567680

申请日：1975-04-14

申请人： Jon R. Patton

发明人： Jon R. Patton

IPC分类号： B66F9/075 ,  F16H61/30 ,  F16H61/46 ,  F16H61/465 ,  F16H63/02 ,  F16H63/06 ,  F15B13/04

CPC分类号： B66F9/07572 ,  F16H61/46 ,  F16H61/465 ,  Y10T137/2554 ,  Y10T137/2607 ,  Y10T137/7782

摘要： An improved differential pressure regulator valve for a hydrostatic transmission control system wherein the valve regulates high fluid pressure versus low fluid pressure and produces a pressure differential that in turn controls the transmission. The regulator valve includes a valve body whose bore is in communication with both first and second sets of fluid inlet and outlet ports, with the valve bore containing a spool assembly that includes first and second cooperating spool members, with the second spool member being operable to control the fluid flow between the first inlet and outlet ports or the second inlet port and the first outlet port. Means, including a passage connecting the first outlet port with a spool port, fluidly unbalances the second spool member by applying the pressure of fluid in the first outlet port to one end of the second spool member in opposition to the biasing action of a regulating spring. Further means, including a passageway in the valve body that connects the second outlet port with the other end of the second spool member, fluidly unbalances the second spool member by applying the pressure of fluid in the second outlet port to the other end of the second spool member in addition to the biasing force of the regulating spring. Additional means are utilized for biasing the first spool member toward one of two extreme positions.

公开(公告)号：US4000795A

公开(公告)日：1977-01-04

申请号：US671526

申请日：1976-03-29

申请人： Jon R. Patton

发明人： Jon R. Patton

IPC分类号： F16D48/02 ,  F16D48/04 ,  F16D25/062 ,  F16K17/04

CPC分类号： F16D48/04 ,  F16D25/14 ,  F16D48/02 ,  F16D2048/0209 ,  F16D2048/0212 ,  Y10T137/7798

摘要： A fluid pressure regulating apparatus in which a conduit means connects a source of pressure fluid to a fluid pressure operated clutch for actuating the latter and in which a valve means is interposed for controlling the pressure of fluid passing therethrough in such a manner so that the fluid pressure increases from a minimum to a maximum value within a predetermined interval of time initially at the same rate as the source pressure, then at a lesser rate than the source pressure, and finally again at the same rate as the source pressure to assure shock free engagement of the clutch.

摘要翻译： 一种流体压力调节装置，其中管道装置将压力流体源连接到用于致动后者的流体压力操作的离合器，并且其中插入有阀装置，以便以这样的方式控制流过其中的流体的压力，使得流体 压力在最初以与源压力相同的速度的预定时间间隔内从最小值增加到最大值，然后以比源压力更低的速率，最后再次以与源压力相同的速率从而确保无冲击 接合离合器。

公开(公告)号：US3964262A

公开(公告)日：1976-06-22

申请号：US583921

申请日：1975-06-10

申请人： Jon R. Patton

发明人： Jon R. Patton

IPC分类号： B60K17/10 ,  F16H61/42 ,  F16H61/433 ,  F16H39/46

CPC分类号： F16H61/42 ,  F16H61/433 ,  B60K17/10 ,  F16H2059/065

摘要： An improvement in a control system, including a brake device, for a vehicle having a hydrostatic transmission which includes a hydrostatic pump and a hydrostatic motor. The hydraulic control circuit includes a control pump, a high pressure conduit, a low pressure conduit, differential pressure regulator valve means and a directional control valve means interposed in the high and low pressure conduits and a fixed orifice means interposed in the low pressure conduit upstream from the differential pressure regulator valve. The improvement takes the form of an adjustable orifice means interposed in a branch conduit, between the high and low pressure control conduits downstream from the fixed orifice means, with the adjustable orifice means permitting the adjustment of the pressure differential between the high and low pressure control conduits.

摘要翻译： 包括具有静液压传动装置的车辆的控制系统（包括制动装置）的改进包括静液压泵和静液压马达。 液压控制回路包括一个控制泵，一个高压管道，一个低压管道，差压调节阀装置和一个置于高压和低压管道中的方向控制阀装置，以及一个置于低压管道上游的固定孔口装置 来自差压调节阀。 改进采用插入在分支导管中的可调节孔装置的形式，在固定孔装置下游的高压和低压控制管道之间，可调节孔装置允许调节高压和低压控制之间的压力差 导管。