Hydrostatic transmission having a control and regulating device for
adjusting the driving torque with superimposed output power limit
regulation
    1.
    发明授权
    Hydrostatic transmission having a control and regulating device for adjusting the driving torque with superimposed output power limit regulation 失效
    静液压变速器具有用于通过叠加的输出功率限制调节来调节驱动转矩的控制和调节装置

    公开(公告)号:US4802336A

    公开(公告)日:1989-02-07

    申请号:US319467

    申请日:1981-11-09

    IPC分类号: F16H61/46 F16H61/475

    摘要: There is disclosed an hydrostatic transmission having a control and regulating device for adjusting the driving torque with superimposed output power limit regulation, the transmission comprising a drive unit comprising an hydraulic pump having a variable output, and an hydraulic motor arranged to be operated by the hydraulic pump; a servo-adjusting device arranged to control the output of the hydraulic pump in order to adjust the working pressure in the transmission, said device comprising a servo piston arranged for two-way adjustment of the hydraulic pump in two directions, and a control valve arranged to subject the servo-piston to an adjusting pressure so that the piston can adjust the operation of the hydraulic pump; a servo-valve spool provided in said control valve and arranged, in dependence upon the desired direction of adjustment of the hydraulic pump, to be subjected on the one hand to a control pressure and on the other hand to the working pressure prevailing in the transmission or a regulating pressure proportional to the working pressure; an arbitrarily variable operating device comprising a pressure regulator for adjusting said control pressure from a constant supply pressure provided by an auxiliary pump; and a regulating valve arranged to limit the control pressure, or indirectly the supply pressure, and adjustable in dependence upon the amount of working fluid running through the drive unit whereby the regulating valve operates in dependence upon the discharge amount through the drive unit only when a predetermined minimal discharge amount is reached.

    摘要翻译: 公开了一种具有控制和调节装置的液压传动装置,用于通过叠加的输出功率限制调节来调节驱动转矩,该变速器包括一个驱动单元,该驱动单元包括具有可变输出的液压泵,以及液压马达,其布置成由液压 泵 伺服调节装置,其设置为控制液压泵的输出,以便调节变速器中的工作压力,所述装置包括一个伺服活塞,该伺服活塞设置成用于沿两个方向对液压泵进行双向调节;以及控制阀, 使伺服活塞达到调节压力,使活塞可以调节液压泵的运行; 设置在所述控制阀中的伺服阀阀芯,其根据液压泵的期望的调节方向被设置成一方面受控于一个控制压力,另一方面被设置在传动装置中的工作压力 或与工作压力成比例的调节压力; 一个任意可变的操作装置,包括用于从由辅助泵提供的恒定供应压力调节所述控制压力的压力调节器; 以及调节阀,其被设置成限制控制压力或间接地供应压力,并且可以根据流过驱动单元的工作流体的量来调节,由此调节阀根据仅通过驱动单元的排出量仅在 达到预定的最小排放量。

    Drive assembly for four-wheel drive vehicles
    2.
    发明授权
    Drive assembly for four-wheel drive vehicles 有权
    四轮驱动车辆的驱动总成

    公开(公告)号:US07059442B2

    公开(公告)日:2006-06-13

    申请号:US10080356

    申请日:2002-02-21

    IPC分类号: B60K17/356

    CPC分类号: B60K17/356 F16H47/02

    摘要: A drive assembly for vehicles with front wheels and rear wheels, especially for tractors, agricultural machinery, construction machinery or for self-driving machines, has an engine (1), a first drive (15) to drive the rear wheels, a second drive (27) to drive the front wheels, an adjustable hydraulic pump (5) driven by the engine (1), and an adjustable first hydraulic motor (9). The first hydraulic motor (9), with respect to drive, is connected to the first drive (15) to drive the rear wheels. Also, the first hydraulic motor, with respect to drive, may be connected to the second drive (27), to drive the front wheels. A second hydraulic motor (10), with respect to drive, can be connected to the second drive (27) to drive the front wheels. The first hydraulic motor (9) has a high coefficient of efficiency within a first driving speed range of the vehicle. The second hydraulic motor (10) has a high coefficient of efficiency within a second driving speed range of the vehicle. The first driving speed range is above the second driving speed range, with both driving speed ranges overlapping.

    摘要翻译: 一种用于具有前轮和后轮的车辆的驱动组件,特别是用于拖拉机,农业机械,工程机械或用于自动驱动机器的车辆具有发动机(1),用于驱动后轮的第一驱动器(15),第二驱动 (27)驱动前轮,由发动机(1)驱动的可调节液压泵(5)和可调节的第一液压马达(9)。 第一液压马达(9)相对于驱动器连接到第一驱动器(15)以驱动后轮。 此外,第一液压马达相对于驱动器可以连接到第二驱动器(27)以驱动前轮。 相对于驱动器的第二液压马达(10)可以连接到第二驱动器(27)以驱动前轮。 第一液压马达(9)在车辆的第一行驶速度范围内具有高的效率系数。 第二液压马达(10)在车辆的第二驱动速度范围内具有高的效率系数。 第一行驶速度范围高于第二行驶速度范围,两个行驶速度范围重叠。

    Hydrostatic and synchronous shift transmission unit for arrangement
between a drive motor and a consuming device
    3.
    发明授权
    Hydrostatic and synchronous shift transmission unit for arrangement between a drive motor and a consuming device 失效
    用于在驱动马达和消耗装置之间布置的静压和同步换档传动单元

    公开(公告)号:US5505113A

    公开(公告)日:1996-04-09

    申请号:US343548

    申请日:1994-11-29

    申请人: Wolfgang Wiest

    发明人: Wolfgang Wiest

    摘要: In a transmission unit (1) for arrangement between a drive motor (47) and a consuming device (48), including a hydrostatic transmission (2), adjustable by means of an adjusting device (15a, 15b), a mechanical shift transmission (4), functionally arranged downstream of the hydrostatic transmission, having a plurality of gears (5, 6), and a control device for adjusting the hydrostatic transmission (2) by means of the adjusting device (15a, 15b) for a shifting process.The shift transmission (4) is a synchronous transmission with synchronization devices (7) for the gears (5, 6), includinga device (U, V2) for the measuring or monitoring of the output drive torque (M) of the hydrostatic transmission (2) is associated with the control device (16).In the event that before a process of gear shifting the output drive torque (M) is greater than the working moment of the associated synchronization device (7, 7a) the control device (16) sets an output drive torque (M) at the hydrostatic transmission (2) through the adjustment device (15a, 15b), which is equal to or smaller than the working moment of the synchronization device which is associated with the relevant gear (6, 7).

    摘要翻译: PCT No.PCT / EP93 / 01593 Sec。 371日期:1994年11月29日 102(e)日期1994年11月29日PCT提交1993年6月22日PCT公布。 公开号WO94 / 02758 日期:1994年2月3日。在用于布置在驱动马达(47)和消耗装置(48)之间的传动装置(1)中,包括一个可通过调节装置(15a,15b)调节的静液压传动装置 ),在功能上布置在静液传动装置的下游的具有多个齿轮(5,6)的机械变速传动装置(4),以及用于通过调节装置(15a)调节静液压传动装置(2)的控制装置, 15b)用于移动过程。 换档变速器(4)是具有用于齿轮(5,6)的同步装置(7)的同步变速器,包括用于测量或监测静液压传动装置的输出驱动转矩(M)的装置(U,V2) (2)与控制装置(16)相关联。 在变速过程之前,输出驱动转矩(M)大于相关同步装置(7,7a)的工作时刻,控制装置(16)将输出驱动转矩(M)设定在静水压 通过调节装置(15a,15b)的传动(2)等于或小于与相关齿轮(6,7)相关联的同步装置的工作力矩。