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    • 21. 发明授权
    • Emergency hydraulic control for adjusting a constant clamping force ratio with regard to a continuously variable transmission
    • 紧急液压控制,用于调节相对于无级变速器的恒定夹紧力比
    • US06569044B1
    • 2003-05-27
    • US09155880
    • 1998-10-07
    • Mehmet-Fatih SenEwald SpiessKarl-Heinz SengerJoachim LuhPeter Baeuerle
    • Mehmet-Fatih SenEwald SpiessKarl-Heinz SengerJoachim LuhPeter Baeuerle
    • F16H5900
    • F16H61/66259F16H61/12Y10T477/624
    • In an emergency hydraulic control, in which in an open hydraulic circuit for supplying the various piston chambers of the secondary and primary axial adjusters, at least one throttle valve is disposed. For regulating the primary and secondary pressure, a primary and secondary valve are used, respectively. Each valve is triggered in turn via a respective electromagnetically actuated pilot control valve in the pilot control valve that opens in emergency operation; the pilot control valves are connected to the outlet of the secondary valve, among others, via orifice valves. The pressure fluid pressure in the primary piston chamber is additionally limited by a pressure limiting valve. The outlet of this pressure limiting valve is connected via a control line to the control line located between the primary pilot control valve and the primary valve. At the same time, an orifice valve is disposed between the discharge point of the control line, disposed at the outlet of the pressure limiting valve, into the control line arriving from the pilot control valve and the branching point of this control line from the lead line to the primary-side pilot control valve. The emergency hydraulic control makes a constant clamping force ratio possible, even at low pump feed quantities or low engine speeds. As a result, on startup of the vehicle, a gear ratio adjustment to “overdrive” is avoided, and the next time the engine is started a gear ratio adjustment in the direction of “low” is possible.
    • 在紧急液压控制中,在用于供应次级和主轴向调节器的各个活塞室的开放液压回路中设置有至少一个节流阀。 为了调节初级和次级压力,分别使用主阀和次阀。 每个阀门依次通过在紧急操作中打开的先导控制阀中的相应的电磁致动先导控制阀来触发; 先导控制阀通过孔阀连接到二次阀的出口。 主活塞室中的压力流体压力另外受限压阀的限制。 该限压阀的出口通过控制线连接到位于主控制阀和主阀之间的控制线。 同时,在控制线的排出点之间设置孔口阀,该控制管路的排出点设置在限压阀的出口处,从控制管路到达的控制线和该控制线的分支点从引线 直线到初级侧先导控制阀。即使在低泵送量或低发动机转速下,紧急液压控制也可以保持恒定的夹紧力比。 结果,在车辆起动时,避免了“过驱动”的变速比调整,并且下一次发动机起动时,可以进行“低”方向的变速比调整。
    • 22. 发明授权
    • Emergency hydraulic control for a clutch arranged between an internal combustion engine and a gear box
    • 用于内燃机和齿轮箱之间的离合器的紧急液压控制
    • US06467262B1
    • 2002-10-22
    • US09601772
    • 2000-09-22
    • Peter Baeuerle
    • Peter Baeuerle
    • F16D2500
    • F16D25/14F16D48/02F16D2048/0254
    • A hydraulic emergency control (10, 10a, 10b, 10c) for a hydraulically actuated clutch (14) arranged between an internal combustion engine (12) is proposed. A pump (16) driven by the internal combustion engine (12) feeds a work line (18) in which a choke (20, 20b, 20c) is arranged. A regulating valve (22, 22a, 22b, 22c) is provided for controlling the clutch (14) at least in the event of failure of the electric supply. A first control line (26) is connected by a first control input (S1) of the regulating valve (22, 22a, 22b, 22c) with the work line (18) in front of the choke (20, 20b, 20c) with respect to the feed direction. A second control line (30) is connected by a second control input (S2) of the regulating valve (22, 22a, 22b, 22c) with the work line (18) behind the choke (20, 20b, 20c) with respect to the feed direction. Through the use of a regulating valve (22, 22a, 22b, 22c), a variable control of the clutch (14) is possible also in emergency operation. In all, very few structural component parts are required for this purpose.
    • 提出了一种用于设置在内燃机(12)之间的液压致动离合器(14)的液压应急控制装置(10,10a,10b,10c)。 由内燃机(12)驱动的泵(16)供给布置有扼流器(20,20b,20c)的工作线(18)。 至少在电源发生故障的情况下,设置有用于控制离合器(14)的调节阀(22,22a,22b,22c)。 第一控制线(26)通过调节阀(22,22a,22b,22c)的第一控制输入(S1)与扼流器(20,20b,20c)前面的工作线(18)连接, 尊重饲料方向。 第二控制线(30)通过调节阀(22,22a,22b,22c)的第二控制输入(S2)与扼流圈(20,20b,20c)后面的工作线(18)相对于 进给方向。 通过使用调节阀(22,22a,22b,22c),也可以在紧急操作中进行离合器(14)的可变控制。 总而言之,为此目的需要很少的结构部件。
    • 23. 发明授权
    • Emergency hydraulic control with control valves for continuously
variable transmission
    • 应急液压控制带控制阀,用于连续变速传动
    • US5944626A
    • 1999-08-31
    • US930146
    • 1997-10-06
    • Ewald SpiessJoachim LuhPeter Baeuerle
    • Ewald SpiessJoachim LuhPeter Baeuerle
    • F16H61/12F16H61/662F16H59/00H02P3/04
    • F16H61/66259F16H61/12Y10S477/906Y10T477/62427
    • A hydraulic emergency control for a gear-ratio-dependent change in hydraulic fluid pressures in a first and second hydraulic bevel-gear axial adjuster of a continuously variable transmission (10), is provided in which a pump (1) supplies at least the piston chamber (17) of the second axial adjuster, and at least one downstream pressure limiting valve (40) limits the fluid pressure there and moreover from this supply, via a continuous path valve (20), supplies the piston chamber (13) of the first axial adjuster, and the continuous path valve (20) is controlled with the aid of a pressure differential acting on a throttle valve (39) that is downstream of the pump (1) and is integrated with a switching valve (30). The switching valve (30', 30", 30'"), the continuous path valve (20', 20"), and the pressure limiting valve (40', 40", 40'") are each hydraulically triggered via at least one of a plurality of pilot control valves (120, 120'), (140, 140'), (160, 160') and (170, 170') counter to the action of a mechanical or hydraulic actuator disposed on the corresponding controlled valve. With the aid of the pilot control valves, among other things the switching valve is hydraulically controlled in such a way that it detects the control failure from control pressure changes in the system and switches over to an emergency operation mode.
    • PCT No.PCT / DE97 / 00024 Sec。 371日期:1997年10月6日 102(e)日期1997年10月6日PCT 1997年1月9日PCT PCT。 出版物WO97 / 34094 日期1997年9月18日提供了一种用于无级变速器(10)的第一和第二液压锥齿轮轴向调节器中的液压流体压力与齿轮比相关的变化的液压应急控制器,其中泵(1) 供应至少第二轴向调节器的活塞室(17),并且至少一个下游限压阀(40)经由连续路径阀(20)将流体压力限制在该供应下,并且还从该供应源供应活塞室 (13),并且所述连续路径阀(20)借助于作用在所述泵(1)下游的节流阀(39)上的压力差被控制,并且与开关阀 (30)。 切换阀(30',30“,30”),连续路径阀(20',20“)和限压阀(40',40”,40“)各自 通过与机械或液压致动器的作用相反的多个先导控制阀(120,120'),(140,140'),(160,160')和(170,170')中的至少一个液压地触发 设置在相应的控制阀上。 借助先导控制阀,除其他之外,切换阀以液压方式进行控制,以便从系统中的控制压力变化检测到控制故障并切换到紧急操作模式。