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    • 2. 发明授权
    • Fuel gauge for an automotive vehicle
    • 汽车燃油表
    • US4470296A
    • 1984-09-11
    • US456051
    • 1982-12-30
    • Hiroshi KobayashiToru Kita
    • Hiroshi KobayashiToru Kita
    • G01F23/00G01F23/26G01M15/00
    • G01F23/266G01F23/0069G01F23/0076
    • A fuel gauge is so designed that a fuel level signal having a signal value responsive to the fuel amount in a fuel tank is averaged over time intervals which vary according to whether the liquid level of the fuel in the tank is stable or unstable and a fuel quantity is calculated and displayed according to the averaged value. The stable or unstable condition of the fuel level is discriminated in accordance with vehicle speed, the "on" or "off" position of an ignition switch or the like. Accordingly, when the fuel level is unstable, the signal value is averaged over a time interval which is longer than that used when the fuel level is stable so that the response of display to variation of the fuel level is improved.
    • PCT No.PCT / JP81 / 00420 Sec。 371日期1982年12月30日 102(e)日期1982年12月30日PCT提交1981年12月28日PCT公布。 公开号WO83 / 02322 日期1987年7月7日。燃料计的设计使得具有响应于燃料箱中的燃料量的信号值的燃料液位信号被随着时间间隔而平均,这些时间间隔根据罐内燃料的液位是否变化 稳定或不稳定,并且根据平均值计算和显示燃料量。 根据车速,点火开关等的“开”或“关”位置来判别燃料液位的稳定或不稳定状态。 因此,当燃料液位不稳定时,在比燃料液位稳定时使用的时间长的时间间隔对信号值进行平均化,使得显示对油位变化的响应提高。
    • 3. 发明授权
    • Karman vortex type flow measuring apparatus
    • 卡曼涡流型流量计
    • US4334426A
    • 1982-06-15
    • US123570
    • 1980-02-22
    • Toru KitaHiroshi Kobayashi
    • Toru KitaHiroshi Kobayashi
    • G01F1/32G01L9/00
    • G01F1/3272G01F1/329G01L9/0035
    • A Karman vortex type flow measuring apparatus comprises a conduit (2) for a fluid whose flow rate or flow velocity is to be measured, and a columnar vortex shedding member (3) extending within the conduit transversely of the fluid flow direction. Frequency of the vortex shedding is detected by a detector (6) whose output electrical signal is compared by a comparator (20) with a slice level signal, to generate a pulse train which is synchronous with the vortex shedding frequency. The slide level is variable in response to fluctuation in the output electrical signal of the detector (6). A highly accurate measurement can be achieved even when the vortex shedding is unstable.
    • 卡曼涡流式流量测量装置包括用于流量或流速要被测量的流体的导管(2)和在导管内横向于流体流动方向延伸的柱状涡流脱落构件(3)。 涡流脱落的频率由检测器(6)检测,其输出电信号由比较器(20)与限幅电平信号进行比较,以产生与涡流脱落频率同步的脉冲串。 滑动电平响应于检测器(6)的输出电信号的波动而变化。 即使涡流脱落不稳定,也可以实现高精度的测量。