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    • 3. 发明授权
    • Electro-hydraulic control with a manual selection valve
    • 电动液压控制用手动选择阀
    • US06319164B1
    • 2001-11-20
    • US09577029
    • 2000-05-23
    • Jeffrey Kurt RundePhillip Franklin Mc CauleyCharles Francis Long
    • Jeffrey Kurt RundePhillip Franklin Mc CauleyCharles Francis Long
    • F16H3100
    • F16H61/12F16H61/0206F16H61/0286F16H61/686F16H2061/122F16H2061/1264F16H2061/1268F16H2061/1292F16H2306/00Y10T477/69363
    • A power transmission includes a plurality of torque transmitting mechanisms controlled by an electro-hydraulic control system to provide a reverse drive ratio, a neutral condition and a plurality of forward drive ratios. The electro-hydraulic control has three shift valves, two variable pressure control valves, and a manual control valve. Each of the shift valves have a hydraulically on position, established by a respective solenoid valve, and a hydraulically off position, established by a spring. The manual control valve is moveable to a neutral condition, a reverse drive condition and a forward drive condition. In each of the positions during a neutral to reverse, neutral to forward, or forward/reverse interchange, the shift valves are conditioned to be hydraulically on thereby permitting the manual control valve to be the controlling valve member for completing the interchange. When the reverse ratio is established, the manual control valve directs fluid pressure from one of the variable pressure control valves to one of the shift valves to assist the respective spring and urge the shift valve to the hydraulically off position. During the reverse ratio, neutral condition and the first forward ratio one of the torque transmitting mechanisms is continually engaged.
    • 动力传动装置包括由电液控制系统控制的多个扭矩传递机构,以提供倒档驱动比,空档状态和多个正向传动比。 电液控制有三个换档阀,两个可变压力控制阀和一个手动控制阀。 每个换档阀具有通过相应的电磁阀建立的液压位置和由弹簧建立的液压关闭位置。 手动控制阀可移动到空档状态,反转驱动状态和正转驱动状态。 在中立到反向,中立到前进或前进/后退交换期间的每个位置中,换档阀被调节为液压,从而允许手动控制阀作为完成交换的控制阀构件。 当反向比建立时,手动控制阀将流体压力从一个可变压力控制阀引导到一个换档阀,以帮助相应的弹簧并将换档阀推动到液压关闭位置。 在反向比期间,中立状态和扭矩传递机构之一的第一前进比例连续接合。
    • 4. 发明授权
    • Backfill pressure control valve for a rotating clutch
    • 用于旋转离合器的回填压力控制阀
    • US5720374A
    • 1998-02-24
    • US696289
    • 1996-08-13
    • Martin Robert DadelCharles Francis LongRobert Clinton Utter
    • Martin Robert DadelCharles Francis LongRobert Clinton Utter
    • B60T1/087F16D57/04F16H61/06F16D25/0638
    • B60T1/087F16D57/04F16H61/065
    • A rotating clutch has a feed passage that is maintained at a predetermined pressure by a backfill control valve during periods of clutch disengagement when the clutch apply chamber is not pressurized. The valve is slidably disposed in a stationary housing in fluid communication between a pressure source and the apply chamber of the clutch. When the pressure source is reduced below a predetermined level, the valve is positioned to prevent the pressure in the passage from decreasing below the predetermined level while exhausting the clutch apply chamber. When clutch actuation is desired, the pressure source increases to open the backfill valve. With the valve opened by pressure, the fluid pressure is supplied to the clutch apply chamber thereby applying the clutch. The valve is positioned in the housing to admit pressurized fluid from the source to the clutch apply chamber while disconnecting the apply chamber from exhaust when clutch apply is required.
    • 旋转离合器具有供给通道,当离合器施加室没有加压时,在离合器分离期间通过回填控制阀保持在预定压力。 阀可滑动地设置在固定壳体中,在压力源和离合器的施加室之间流体连通。 当压力源减小到预定水平以下时,阀被定位以防止通道中的压力降低到预定值以下,同时排出离合器施加室。 当需要离合器致动时,压力源增加以打开回填阀。 通过压力打开阀,将流体压力提供给离合器施加室,从而施加离合器。 当需要离合器应用时,阀被定位在壳体中以允许加压流体从源到离合器施加室,同时将施加室与排气隔离。
    • 8. 发明授权
    • Multiple gain trim valve for a selectively engageable friction device
    • 用于可选择性接合的摩擦装置的多增益调节阀
    • US6155949A
    • 2000-12-05
    • US332848
    • 1999-06-14
    • Charles Francis LongJeffrey Jay ColeMartin Robert Dadel
    • Charles Francis LongJeffrey Jay ColeMartin Robert Dadel
    • F16K31/122F16D48/06F16H61/00F16H61/06F16H61/04
    • F16H61/065F16D48/066F16D2048/0209F16D2048/0221F16D2500/70294F16D2500/70406F16H2061/0253
    • A control for a multi-speed transmission has a multiple gain trim valve that controls the engagement pressure rise in a selectively engageable torque transmitting mechanism. The trim valve has a valve spool and a plug valve longitudinally aligned in a valve bore such that four separate areas are present. One of the areas has the engagement pressure of the torque transmitting mechanism imposed thereon. Another of the areas has a control pressure imposed thereon and the remaining two areas are subjected to the trim pressure. The gain rate between the trim pressure and the engagement pressure determines the rapidity with which the torque transmitting mechanism is engaged. The control pressure reduces the effect of the trim pressure to provide a low gain rate until the product of the trim pressure and one of the areas is equal to or greater than the product of the control pressure and the area on which it operates. By reducing the control pressure to a zero value, a maximum gain rate is attained at the trim valve.
    • 用于多速变速器的控制装置具有多增益调节阀,其控制可选择性地接合的扭矩传递机构中的接合压力升高。 调节阀具有阀芯和在阀孔中纵向对齐的旋塞阀,使得存在四个分开的区域。 其中一个区域具有施加在其上的扭矩传递机构的接合压力。 另一个区域具有施加的控制压力,并且剩余的两个区域受到修整压力。 调节压力和接合压力之间的增益率决定了扭矩传递机构接合的速度。 控制压力降低了调节压力的影响,以提供低增益率,直到调节压力和其中一个区域的乘积等于或大于控制压力与其操作区域的乘积。 通过将控制压力降低到零值,在调节阀处获得最大增益。
    • 9. 发明授权
    • Hydraulic control with line pressure modulation
    • 液压控制与线压调制
    • US5669473A
    • 1997-09-23
    • US642982
    • 1996-05-06
    • Charles Francis LongMartin Robert Dadel
    • Charles Francis LongMartin Robert Dadel
    • F16H61/14F16H45/02
    • F16H61/143Y10T74/19158
    • A hydraulic control for a transmission has a main line regulator, a torque converter clutch relay valve and a torque converter clutch solenoid valve. During torque converter operation, the pressure regulator is subjected to a line pressure bias signal and supplies pressurized hydraulic fluid to a control system at a substantially constant pressure level. During torque converter clutch operation, the pressure regulator is subjected to an additional line pressure bias signal and a variable pressure bias signal from the torque converter clutch solenoid valve to provide a modulated pressure control whereby main pressure is varied proportionally with torque converter clutch apply pressure.
    • 用于变速器的液压控制器具有主线调节器,变矩器离合器继动阀和变矩器离合器电磁阀。 在变矩器操作期间,压力调节器经受管路压力偏置信号,并且将压力液压流体以基本上恒定的压力水平供应到控制系统。 在变矩器离合器操作期间,压力调节器经受来自变矩器离合器电磁阀的附加管路压力偏置信号和可变压力偏置信号,以提供调制压力控制,由此主压力与变矩器离合器施加压力成比例地变化。
    • 10. 发明授权
    • Relay valve with latch area for controlling a friction device
    • 具有锁定区域的继电器阀,用于控制摩擦装置
    • US6077182A
    • 2000-06-20
    • US333149
    • 1999-06-14
    • Charles Francis LongPhillip Franklin McCauley
    • Charles Francis LongPhillip Franklin McCauley
    • F16H61/12F16H61/18
    • F16H61/12F16H2059/006F16H2061/1204F16H2061/1232F16H2061/1236F16H2061/1244F16H2061/1268F16H2306/00F16H61/686Y10S477/906Y10T477/6934
    • A powertrain has a multi-speed transmission with an electro-hydraulic control system for establishing the operating conditions of the transmission. The control system has a plurality of shift or relay valves that are each alternatively positioned by a spring or a solenoid controlled pressure bias. One of the relay valves, which controls two friction devices, has a latching mechanism which will retain the valve in the pressure set condition until the pressure in one of the friction devices is decreased below a predetermined pressure. The latch mechanism will also serve to retain the transmission in a low forward ratio if an electrical discontinuance should occur when the transmission is conditioned for the low forward ratio. The control will also permit retention in the highest forward ratio if electrical discontinuance occurs during operation in this ratio. Following an engine shutdown and restart, the transmission can be selectively operated in a reverse ratio, a neutral condition or the third forward ratio.
    • 动力总成具有用于建立变速器的操作条件的电动液压控制系统的多速变速器。 控制系统具有多个换档或继动阀,每个换档或继动阀通过弹簧或螺线管控制的压力偏压来替代地定位。 控制两个摩擦装置的继电器阀之一具有一个闭锁机构,其将阀保持在压力设定状态,直到其中一个摩擦装置中的压力降低到预定压力以下。 如果在传输被调节为低向前比率时发生电中断,则锁存机构还将用于将传输保持在低向前比例。 如果在这种比例下运行时出现电气中断,控制也将允许保持在最高的前进比率。 在发动机关闭和重新起动之后,可以以反向比例,中立状态或第三次前进比例选择性地运行变速器。