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    Integrated power transmitting system
    3.
    发明授权
    Integrated power transmitting system 失效
    综合电力传输系统

    公开(公告)号：US5575735A

    公开(公告)日：1996-11-19

    申请号：US416394

    申请日：1995-04-06

    申请人： Alan R. Coutant ,  Jerry D. Marr ,  Sanjay Rajagopalan

    发明人： Alan R. Coutant ,  Jerry D. Marr ,  Sanjay Rajagopalan

    IPC分类号： F16H61/00 ,  F16H47/02 ,  F16H47/04 ,  F16H61/04 ,  F16H61/46 ,  F16H61/462

    CPC分类号： F16H47/04 ,  F16H61/46 ,  F16H61/462 ,  F16H61/0403 ,  Y10T477/636

    摘要： An integrated power transmitting system includes a hydrostatic transmission and a mechanical transmission both being driven by an engine. The output of the hydrostatic transmission and the mechanical transmission are both selectively coupled to a work system through a final output shaft. A sensing arrangement senses the transmission input speed, the output of the hydrostatic transmission and the speed of the final output shaft and delivers the signals to the microprocessor. The microprocessor processes the received signals on a continuous basis and delivers a first set of command signals to control operation of the hydrostatic transmission and a second set of control signals to selectively control forward and reverse direction and high and low clutches within the mechanical transmission. A planetary arrangement within the mechanical transmission sums the speed of the hydrostatic transmission with a full range forward and reverse gear mechanism. This arrangement provides a smooth and continuous change in the speed of a machine in both the forward and reverse directions throughout its entire speed range.

    摘要翻译： 集成的动力传递系统包括由发动机驱动的液压传动和机械变速器。 静液压传动装置和机械传动装置的输出通过最终输出轴选择性地耦合到工作系统。 感测装置感测变速器输入速度，静液压传动的输出和最终输出轴的速度，并将信号传送到微处理器。 微处理器连续地处理接收到的信号，并传送第一组命令信号以控制静液压变速器的操作和第二组控制信号，以选择性地控制机械变速器内的前进和后退方向以及高和低离合器。 机械传动装置内的行星装置将全液压前进和后退齿轮机构的静液压变速器的速度相加。 这种布置使机器在整个速度范围内的正向和反向方向上的速度平滑且连续地变化。

    Control arrangement for a hydrostatic system
    4.
    发明授权
    Control arrangement for a hydrostatic system 失效
    静液压系统的控制装置

    公开(公告)号：US5561979A

    公开(公告)日：1996-10-08

    申请号：US390001

    申请日：1995-02-17

    申请人： Alan R. Coutant ,  Jerry D. Marr

    发明人： Alan R. Coutant ,  Jerry D. Marr

    IPC分类号： F15B11/02 ,  F04B49/06 ,  F15B21/08 ,  F16D31/02

    CPC分类号： F16H61/462 ,  F04B49/065 ,  F15B21/087 ,  F04B2201/1201 ,  F04B2203/1201 ,  F16H61/425 ,  F16H61/435

    摘要： In many hydrostatic systems, the variable displacement pump is controlled by an operator moving a directional control valve to provide pressurized fluid to the displacement changing mechanism thereof which in turn varies the displacement responsive to the degree of pressurized fluid being directed to the displacement changing mechanism. In order to insure that the displacement of the Variable displacement pump is at the desired displacement, various forms of follow-up mechanisms have been required. These follow-up mechanisms are many times complicated and expensive to add to the hydrostatic system. In the subject arrangement, the speed of the pump input shaft and the speed of the motor output shaft is sensed (R,S) and the signals directed to a microprocessor which in turn processes the signals and directs a control signal (P) to a solenoid operated proportional valve. The solenoid operated proportional valve moves in response to the control signal and directs pressurized fluid to the displacement controller of the variable displacement pump to change the displacement thereof. Once the speed of the output shaft is achieved, the microprocessor modifies the control signal to maintain the variable displacement pump at the needed displacement position to maintain the desired speed of the output shaft to a work system. This arrangement provides an accurate control of the displacement of the variable displacement pump without the need of providing complicated follow-up mechanisms and/or servo mechanisms.

    摘要翻译： 在许多流体静力学系统中，可变排量泵由操作者控制方向控制阀来控制，以将加压流体提供给其位移改变机构，该位移改变机构又响应于加压流体被引导到位移改变机构的程度而改变位移。 为了确保可变排量泵的位移处于所需的位移，已经需要各种形式的后续机构。 这些后续机制多次复杂并且昂贵，以增加静液压系统。 在主题布置中，泵输入轴的速度和电动机输出轴的速度被感测（R，S），并且指向微处理器的信号，微处理器进而处理信号并将控制信号（P）引导到 电磁比例阀。 电磁比例阀响应于控制信号而移动，并将加压流体引导到可变排量泵的排量控制器以改变其位移。 一旦实现输出轴的速度，微处理器就改变控制信号，以将可变排量泵保持在所需的位移位置，以将输出轴的期望速度保持在工作系统上。 这种布置提供了可变排量泵的位移的精确控制，而不需要提供复杂的后续机构和/或伺服机构。

    Method for controlling shift points in a continuously variable transmission
    5.
    发明授权
    Method for controlling shift points in a continuously variable transmission 失效
    用于控制无级变速器中的换档点的方法

    公开(公告)号：US5624339A

    公开(公告)日：1997-04-29

    申请号：US470795

    申请日：1995-06-06

    申请人： Alan R. Coutant ,  Jerry D. Marr

    发明人： Alan R. Coutant ,  Jerry D. Marr

    IPC分类号： F16H59/14 ,  F16H47/04 ,  F16H59/38 ,  F16H59/40 ,  F16H59/42 ,  F16H59/46 ,  F16H61/04 ,  F16H61/42 ,  F16H61/421 ,  F16H61/425 ,  F16H61/431 ,  F16H61/46 ,  F16H61/462 ,  F16H37/08

    CPC分类号： F16H61/421 ,  F16H47/04 ,  F16H61/0403 ,  F16H61/431 ,  F16H61/46 ,  F16H61/462 ,  F16H2037/0886 ,  F16H61/425

    摘要： A method is disclosed for controlling the shift points in a continuously variable transmission having a closed loop control wherein the output of the continuously variable transmission is generated by a hydrostatic transmission or by a combination of the hydrostatic transmission and a mechanical transmission having a summing planetary and high and low speed clutches. The method comprises the steps of sensing the input and output speeds of the continuously variable transmission and the speed of the output from the hydrostatic transmission to monitor the speed ratios therein, comparing an operative transmission speed ratio of the transmissions to a predefined established transmission speed ratio, disengaging the high or low speed clutch once the predefined established transmission speed ratio is reached, increasing or decreasing the speed of the output of the hydrostatic transmission following disengagement of the high or low speed clutch, and engaging the other of the high or low speed clutch once the change in output speed of the hydrostatic transmission has substantially synchronized the speeds relative to the high or low speed clutches so that the output torque and speed of the transmission before and after the shift is substantially equal.

    摘要翻译： 公开了一种用于控制具有闭环控制的无级变速器中的变速点的方法，其中无级变速器的输出由静液压变速器或静液压变速器与机械变速器的组合产生，该机械变速器具有相加的行星和 高低速离合器。 该方法包括以下步骤：感测无级变速器的输入和输出速度以及来自静液压变速器的输出速度，以监测其中的速比，将变速箱的有效传动速度比与预定的已建立的变速比 ，一旦达到预定的已建立的变速比，就分离高速或低速离合器，在高速或低速离合器分离之后增加或减少静液压变速器的输出速度，并且接合高速或低速离合器中的另一个 一旦静液压变速器的输出速度的变化使得相对于高速或低速离合器的速度基本上同步，使得变速器前后的变速器的输出扭矩和速度基本相等。

    Method and apparatus for generating velocity commands for a continuously variable transmission
    6.
    发明授权
    Method and apparatus for generating velocity commands for a continuously variable transmission 有权
    用于产生无级变速器的速度指令的方法和装置

    公开(公告)号：US06223111B1

    公开(公告)日：2001-04-24

    申请号：US09288577

    申请日：1999-04-08

    申请人： Michael G. Cronin ,  Brian D. Kuras ,  Kevin J. Lueschow ,  Jerry D. Marr

    发明人： Michael G. Cronin ,  Brian D. Kuras ,  Kevin J. Lueschow ,  Jerry D. Marr

    IPC分类号： F16H6146

    CPC分类号： F16H61/46 ,  F16H61/47 ,  F16H61/66254 ,  Y10T477/636 ,  Y10T477/692

    摘要： A control apparatus for a continuously variable transmission is disclosed. The control apparatus includes a transmission speed sensor which generates an actual velocity signal in response measuring speed of an output shaft of the continuously variable transmission. The control apparatus further includes a first input device, or speed pedal, which is positionable in one of an infinite number of positions and generates a desired velocity signal corresponding to the position of the speed pedal. The control apparatus yet further includes a controller operable to receive the desired velocity signal, receive the actual velocity signal, calculate a commanded acceleration ac, and generate a commanded velocity Vc based on the desired velocity signal, a jerk value j, and the commanded acceleration ac. A method of controlling a continuously variable transmission is also disclosed.

    摘要翻译： 公开了一种用于无级变速器的控制装置。 该控制装置包括传递速度传感器，其根据无级变速器的输出轴的测量速度产生实际速度信号。 控制装置还包括第一输入装置或速度踏板，该第一输入装置或速度踏板可定位在无限数量的位置之一，并产生对应于速度踏板的位置的所需速度信号。 控制装置还包括控制器，其可操作以接收所需速度信号，接收实际速度信号，计算指令加速度ac，并基于所需速度信号，加加速度值j和指令加速度产生指令速度Vc ac。 还公开了一种控制无级变速器的方法。

    System and method for providing different values of jerk in response to speed pedal displacement
    7.
    发明授权
    System and method for providing different values of jerk in response to speed pedal displacement 失效
    用于提供不同的加速度值以响应于速度踏板位移的系统和方法

    公开(公告)号：US6038504A

    公开(公告)日：2000-03-14

    申请号：US059637

    申请日：1998-04-13

    申请人： Michael G. Cronin ,  Brian D. Kuras ,  Jerry D. Marr

    发明人： Michael G. Cronin ,  Brian D. Kuras ,  Jerry D. Marr

    IPC分类号： F16H59/44 ,  F16H47/04 ,  F16H59/06 ,  F16H59/18 ,  F16H59/40 ,  B60K41/12

    CPC分类号： F16H59/18 ,  F16H47/04 ,  F16H2037/0886 ,  F16H59/06 ,  F16H59/40

    摘要： A system and process for providing different levels of jerk in response to speed pedal displacement in a machine including a speed pedal having a range of displacement, a continuously variable transmission, a mechanism for measuring output speed of the continuously variable transmission, and an electronic controller for generating a jerk command signal that is in a one-to-one correspondence with the displacement of the speed pedal and shaping the jerk command signal into a velocity profile command that is applied to the continuously variable transmission and then comparing the output speed of the continuously variable transmission with the velocity profile command for controlling the continuously variable transmission.

    摘要翻译： 一种用于响应于包括具有位移范围的速度踏板的机器响应于速度踏板位移而提供不同程度的冲击的系统和过程，无级变速器，用于测量无级变速器的输出速度的机构以及电子控制器 用于产生与速度踏板的位移一一对应的加加速度指令信号，并且将加加速度指令信号整形成应用于无级变速器的速度分布命令，然后比较输出速度 具有用于控制无级变速器的速度曲线指令的无级变速器。

    Steering control arrangement
    8.
    发明授权
    Steering control arrangement 失效
    转向控制装置

    公开(公告)号：US5249639A

    公开(公告)日：1993-10-05

    申请号：US915733

    申请日：1992-07-24

    申请人： Jerry D. Marr ,  Howard A. Marsden ,  Noel J. Rytter

    发明人： Jerry D. Marr ,  Howard A. Marsden ,  Noel J. Rytter

    IPC分类号： B62D5/32 ,  B62D7/14 ,  B62D5/30 ,  F16B9/09

    CPC分类号： B62D7/148 ,  B62D5/32

    摘要： Vehicles having front and rear pairs of steerable wheels are sometimes provided with large springs for moving one pair of the wheels to a straight-ahead position during emergency steering. Large amounts of hydraulic energy are expended solely for the compression of such springs every time the pair of wheels are steered. A back-up steering control system (19) of the present steering control arrangement (10) has a servo valve (76) operative to control the flow of pressurized fluid from a back-up pump (60) to a steering control valve (21) which in turn controls the flow of pressurized fluid from the back-up pump to a hydraulic actuator (13) to hydraulically move a first pair of steerable wheels (11) to a straight-ahead position during emergency steering conditions. A manual control valve (68) is operative to control the flow of pressurized fluid from the back-up pump (60) to another steering control valve (22) which in turn controls the flow of pressurized fluid to a hydraulic actuator (16) for effecting steering of a second pair of steerable wheels (12) during the emergency steering condition.

    摘要翻译： 具有前后成对的可转向轮的车辆有时设有大的弹簧，用于在紧急转向期间将一对车轮移动到直线前进位置。 大量的液压能量仅用于在每一对转向轮时压缩这种弹簧。 本转向控制装置（10）的后备转向控制系统（19）具有伺服阀（76），该伺服阀可操作以控制加压流体从备用泵（60）到转向控制阀（21）的流动 ），其又控制加压流体从备用泵到液压致动器（13）的流动，以在紧急转向条件期间将第一对可转向轮（11）液压地移动到直线前进位置。 手动控制阀（68）用于控制从备用泵（60）到另一个转向控制阀（22）的加压流体的流动，该转向控制阀（22）进而控制加压流体流向液压致动器（16），用于 在紧急转向条件期间对第二对可转向轮（12）进行转向。