Measurement and display of load of excavating blasted ground
    1.
    发明授权
    Measurement and display of load of excavating blasted ground 失效
    挖掘爆破地面载荷的测量和显示

    公开(公告)号:US6122598A

    公开(公告)日:2000-09-19

    申请号:US65064

    申请日:1998-04-27

    摘要: This invention relates to a measuring and display system for loads applied upon digging blasted earth, which can contribute to accurate blasting. An operating direction of a bucket of an excavator is detected by pressure switches 15,16, while a pressure P.sub.B in a bottom compartment 6S.sub.B of a bucket cylinder is detected by a pressure sensor 17. A processor 23 computes a digging position based on signals from a boom angle sensor 18, an arm angle sensor 19, GPS 20 and a magnetic direction sensor 21, integrates pressures P.sub.B during an ON period of the pressure switch 15, and transmits the thus-integrated pressure together with the digging position to a computer 30. The computer 30 displays a map of a lot under blasting and blasting positions on a display, and on the map, also displays the thus-transmitted digging position by a mark X and the integrated pressure by a numeral. With reference to this integrated pressure, a determination is made as to whether the blasting was proper or improper. The results of this determination are used for the next blasting.

    摘要翻译: PCT No.PCT / JP97 / 02968 Sec。 371日期:1998年5月27日 102(e)日期1998年4月27日PCT 1997年8月26日PCT公布。 第WO98 / 09026号公报。 日期:1998年3月5日本发明涉及一种用于挖掘爆破土的载荷测量和显示系统,可有助于精确的爆破。 挖掘机的铲斗的操作方向由压力开关15,16检测,而铲斗缸的底部隔间6SB中的压力PB由压力传感器17检测。处理器23基于来自 悬臂角度传感器18,臂角传感器19,GPS 20和磁方向传感器21在压力开关15的接通时段期间积分压力PB,并将这样一体化的压力与挖掘位置一起传递到计算机30 计算机30在显示器上显示爆破和爆破位置下的批次的地图,并且在地图上还通过标记X和积分压力以数字显示如此传送的挖掘位置。 关于这种一体化的压力,确定爆破是否适当或不正确。 该测定的结果用于下一次爆破。

    System for estimating residual service time of work vehicle
    2.
    发明授权
    System for estimating residual service time of work vehicle 失效
    用于估计工作车辆剩余使用时间的系统

    公开(公告)号:US5995886A

    公开(公告)日:1999-11-30

    申请号:US914235

    申请日:1997-08-19

    摘要: A system for the estimation of residual service time of a work vehicle includes an arithmetic and logic unit which is inputted with an engine speed and a speed difference from a controller for an engine, with a signal, which indicates whether or not at least one of several control levers has been operated, from a lever position detector, and also with a residual fuel quantity in a fuel tank from a converting device. The residual fuel quantity is determined at intervals of about 1 hour at the arithmetic and logic unit. Upon an elapse of each short period of time, a quantity of fuel consumed during said short time, said quantity being obtained based on a difference in engine speed, is subtracted from the residual fuel quantity, whereby a calculated residual fuel quantity is obtained. A quantity of fuel consumed from a preceding residual fuel quantity measurement period to a current residual fuel quantity measurement period is divided by the calculated residual fuel quantity to obtain a value. The residual fuel quantity is then divided by this value to compute a residual service time, which is then displayed on a display.

    摘要翻译: 用于估计作业车辆的剩余使用时间的系统包括输入了与发动机的控制器的发动机转速和速度差的算术和逻辑单元,该信号指示是否至少有一个 几个控制杆已经从杠杆位置检测器操作,并且还具有来自转换装置的燃料箱中的残余燃料量。 在算术和逻辑单元上以约1小时的间隔确定剩余燃料量。 在短时间内经过时,从剩余燃料量中减去在所述短时间内消耗的燃料量,基于发动机转速的差异得到的燃料量,得到计算出的剩余燃料量。 将从前一个剩余燃料量测量周期消耗的燃料量减少到当前剩余燃料量测量周期,除以所计算的剩余燃料量以得到一个值。 然后将剩余燃料量除以该值以计算剩余使用时间,然后显示在显示器上。

    Apparatus for diagnosing failure of hydraulic pump for work machine
    3.
    发明授权
    Apparatus for diagnosing failure of hydraulic pump for work machine 有权
    用于诊断作业机械液压泵故障的装置

    公开(公告)号:US6055851A

    公开(公告)日:2000-05-02

    申请号:US51440

    申请日:1998-09-03

    摘要: This invention relates to a fault diagnosis system for hydraulic pumps in a work vehicle, which is economical and permits sure identification of one or more trouble-developed ones of the hydraulic pumps.Pressure sensors 61-64 are arranged on pressurized fluid lines 30,40, which extend to a tank T from points immediately out of center bypasses of flow control valves 21,231-234,451-454,26 communicated to hydraulic pumps 1-6. Solenoid-operated directional control valves 51-56 are interposed in input circuits of individual regulators 11-16 so that, upon excitation, a pressure of a pilot pump 7 is introduced into the regulators 11-16. When all the flow control valves are brought into neutral positions thereof and a determination is instructed through a switch 80, one of the solenoid-operated directional control valves is excited by a signal from a processor 70 so that pressurized fluid is delivered at a maximum flow rate from the corresponding hydraulic pump. A detection value of the corresponding pressure sensor at this time is translated into a flow rate, which is then stored. These procedures are performed with respect to the individual hydraulic pumps successively. Based on a flow rate obtained in every determination, a fault diagnosis of the corresponding particular hydraulic pump is performed.

    摘要翻译: PCT No.PCT / JP97 / 02771 Sec。 371日期:1998年9月3日 102(e)1998年9月3日PCT PCT 1997年8月7日提交PCT公布。 公开号WO98 / 06946 日期:1998年02月19日本发明涉及一种用于工作车辆中的液压泵的故障诊断系统,其经济并且可以确定地识别一个或多个故障开发的液压泵。 压力传感器61-64设置在加压流体管线30,40上,该加压流体管线30,40从紧接着流向控制阀21,231-234,451-454,26的中心旁路的点延伸到罐体T,该流量控制阀被传送到液压泵1-6。 电磁式方向控制阀51-56插入到单独的调节器11-16的输入电路中,使得在激励时,先导泵7的压力被引入到调节器11-16中。 当所有流量控制阀进入中间位置并通过开关80指示确定时,电磁式方向控制阀之一被来自处理器70的信号激励,使得加压流体以最大流量 速率来自相应的液压泵。 此时的相应的压力传感器的检测值被转换成流量,然后存储。 这些步骤相对于各个液压泵相继进行。 根据每个确定中获得的流量,执行对应的特定液压泵的故障诊断。