Payload monitor
    11.
    发明授权
    Payload monitor 失效
    有效载荷监视器

    公开(公告)号:US4635739A

    公开(公告)日:1987-01-13

    申请号:US749607

    申请日:1985-06-25

    IPC分类号: G01G19/10 G01G23/18 G01G5/04

    CPC分类号: G01G19/10

    摘要: An apparatus determines the payload carried in a work vehicle by periodically measuring the pressure of a fluid contained within front and rear suspension struts. The struts are connected in supporting relation between a load carrying portion and a ground engaging portion of the vehicle such that a pressure differential between a loaded and unloaded vehicle can be shown to be indicative of the magnitude of the payload. Moreover, the pressures are a function of the geometry of a suspension means which interconnects the load carrying portion and the ground engaging portion.

    摘要翻译: 装置通过周期性地测量包含在前后悬架支柱内的流体的压力来确定作业车辆中载荷的有效载荷。 支柱以负载承载部分和车辆的地面接合部分之间的支撑关系连接,使得加载和卸载的车辆之间的压力差可以表示为有效载荷的大小。 此外,压力是将负载承载部分和地面接合部分互连的悬挂装置的几何形状的函数。

    Absolute and incremental optical encoder
    12.
    发明授权
    Absolute and incremental optical encoder 失效
    绝对增量光学编码器

    公开(公告)号:US4633224A

    公开(公告)日:1986-12-30

    申请号:US730888

    申请日:1985-05-06

    摘要: An apparatus optically detects the position of a movable element through the use of six discrete tracks. Each of the tracks is formed on a glass substrate and has a preselected pattern of optically transmissive and opaque sections arranged thereon. A light source and optical sensors are associated with each of the tracks such that the light is either blocked or passed to the optical sensors respectively responsive to the opaque and transmissive sections. Five of the tracks correspond to form a five bit absolute gray code pattern indicative of the position of the movable element. The sixth remaining track has alternately opaque and transmissive sections arranged to form an incremental track where the count of the number of opaque and transmissive sections travelling past an initial set point is maintained in memory and corresponds to an incremental position within each of the absolute positions. The microprocessor base controller limits the number of incremental transitions within an absolute position to thirty-two or two to the fifth power. The thirty-two possible positions, when used as the lower five bits of a ten bit binary word, where the upper five bits come from the five absolute tracks, forms a ten bit pseudo-gray code indicative of the position of the movable element and is highly accurate without the necessity of ten absolute tracks and the cumbersome packaging associated therewith.

    摘要翻译: 设备通过使用六个离散轨道光学地检测可移动元件的位置。 每个轨道形成在玻璃基板上,并且具有布置在其上的光学透射和不透明部分的预选图案。 光源和光学传感器与每个轨道相关联,使得光分别响应于不透明部分和透射部分被阻挡或传递到光学传感器。 五个轨道对应于形成指示可移动元件的位置的五位绝对灰色代码图案。 第六剩余轨道具有交替的不透明部分和透射部分,其布置成形成增量轨迹,其中行进超过初始设定点的不透明部分和透射部分的数量的数量被保持在存储器中并且对应于每个绝对位置内的增量位置。 微处理器基座控制器将绝对位置内的增量转换次数限制在三十二或二至五次。 三十二个可能的位置当用作十位二进制字的低5位时,其中高5位来自五个绝对轨迹,形成表示可移动元件位置的十位伪灰度代码, 是高度准确的,而不需要十个绝对轨道和与之相关的繁琐的包装。

    Engine control system
    13.
    发明授权
    Engine control system 失效
    发动机控制系统

    公开(公告)号:US4368705A

    公开(公告)日:1983-01-18

    申请号:US277745

    申请日:1981-03-03

    摘要: An electronic engine control system (10) utilizing a digital microprocessor (30) for controlling the timing mechanism (13) and fuel pump rack limit (23) to set the engine timing of, and maximum allowable rate of fuel delivery to, an interval combustion engine (11) so that maximum engine performance is obtained with smoke and emissions limited to required EPA levels. A plurality of timing maps (61-64) are provided, for different modes of engine operation, each map having predetermined value timing control signals programmed therein corresponding to the optimal timing advance of a particular engine speed, or particulaoptimoptimal timing advance of a particular engine speed, or particular combination of engine speed and position of the fuel rack (21). A timing map selector (65) identifies the mode of engine operation and selects the appropriate timing map (61-64) to control the timing mechanism (13) by the particular programmed signal for the existing engine speed and fuel rack position. A similar map (71) will output a particular programmed fuel/air signal in accordance with the existing engine speed and timing, the fuel/air signal having been predetermined to correspond to the maximum fuel/air ratio for fuel combustion to meet EPA limits for that engine speed and timing. The fuel/air signal is multiplied (76) in accordance with existing manifold pressure and the resultant fuel delivery signal is used to set the rack limit (23) for maximum allowable fuel delivery to the engine (11).

    摘要翻译: PCT No.PCT / US81 / 00269 Sec。 371日期1981年3月3日 102(e)1981年3月3日PCT PCT。 出版物WO82 / 03107 日期:1982年9月16日。一种电子发动机控制系统(10),利用数字微处理器(30)控制定时机构(13)和燃油泵机架极限(23),以设定发动机定时和最大允许速率 燃料输送到间歇式燃烧发动机(11),以便通过烟雾获得最大的发动机性能并且排放限于所需的EPA水平。 提供多个定时图(61-64),对于不同的发动机操作模式,每个地图具有在其中编程的预定值定时控制信号,其对应于特定发动机速度的最佳定时提前,或特定发动机的特定定时提前 速度或发动机速度和燃料架(21)的位置的特定组合。 定时图选择器(65)识别发动机操作模式,并根据现有发动机转速和燃料架位置的特定编程信号选择适当的定时图(61-64)以控制定时机构(13)。 类似的地图(71)将根据现有的发动机转速和时间输出特定的编程的燃料/空气信号,燃料/空气信号已被预先确定为对应燃料燃烧的最大燃料/空气比以满足EPA的限制 那个发动机的转速和时机。 根据现有的歧管压力将燃料/空气信号乘以(76),并且使用合成的燃料输送信号来设定用于发动机(11)的最大允许燃料输送的齿条极限(23)。