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    • 2. 发明授权
    • Method of controlling solenoid valve
    • 控制电磁阀的方法
    • US08681468B2
    • 2014-03-25
    • US12696097
    • 2010-01-29
    • Steven D. JacobFares NajjarGerald W. MeyerRichard D. Ross
    • Steven D. JacobFares NajjarGerald W. MeyerRichard D. Ross
    • H01H9/00
    • H01F7/1805H01F7/1844H01F2007/185H01F2007/1866H01F2007/1888Y10T137/0318
    • A method of solenoid valve control includes measuring voltage across the solenoid valve and current through the solenoid valve, and using the results to aid in controlling the solenoid valve. For instance, one or both of the measured values may be used to determine when actual engagement of the solenoid valve occurs. An initial lower voltage and lower current can be used, and then as conditions change, the changes in condition can be accounted for by increasing voltage and current to maintain the desired response time of the solenoid valve. By measuring and controlling voltage and current less of a margin can be used, both in setting voltage/current levels and in selecting the time over which a pull voltage/current is utilized. This reduces the wasted energy in the system, as well as reducing the temperature rise in the solenoid valve.
    • 电磁阀控制的方法包括测量电磁阀两端的电压和通过电磁阀的电流,并使用结果来帮助控制电磁阀。 例如,可以使用测量值中的一个或两个来确定电磁阀何时实际接合。 可以使用初始的较低电压和较低的电流,然后随着条件的变化,可以通过增加电压和电流来考虑条件的变化,以保持电磁阀的期望的响应时间。 通过测量和控制电压和电流,可以使用较小的裕度,无论是设置电压/电流水平,还是选择使用拉电压/电流的时间。 这减少了系统中浪费的能量,同时降低了电磁阀的温升。
    • 5. 发明申请
    • METHOD OF CONTROLLING SOLENOID VALVE
    • 控制电磁阀的方法
    • US20110094589A1
    • 2011-04-28
    • US12696097
    • 2010-01-29
    • Steven D. JacobFares NajjarGerald W. MeyerRichard D. Ross
    • Steven D. JacobFares NajjarGerald W. MeyerRichard D. Ross
    • F16K31/02
    • H01F7/1805H01F7/1844H01F2007/185H01F2007/1866H01F2007/1888Y10T137/0318
    • A method of solenoid valve control includes measuring voltage across the solenoid valve and current through the solenoid valve, and using the results to aid in controlling the solenoid valve. For instance, one or both of the measured values may be used to determine when actual engagement of the solenoid valve occurs. An initial lower voltage and lower current can be used, and then as conditions change, the changes in condition can be accounted for by increasing voltage and current to maintain the desired response time of the solenoid valve. By measuring and controlling voltage and current less of a margin can be used, both in setting voltage/current levels and in selecting the time over which a pull voltage/current is utilized. This reduces the wasted energy in the system, as well as reducing the temperature rise in the solenoid valve.
    • 电磁阀控制的方法包括测量电磁阀两端的电压和通过电磁阀的电流,并使用结果来帮助控制电磁阀。 例如,可以使用测量值中的一个或两个来确定电磁阀何时实际接合。 可以使用初始的较低电压和较低的电流,然后随着条件的变化,可以通过增加电压和电流来考虑条件的变化,以保持电磁阀的期望的响应时间。 通过测量和控制电压和电流,可以使用较小的裕度,无论是设置电压/电流水平,还是选择使用拉电压/电流的时间。 这减少了系统中浪费的能量,同时降低了电磁阀的温升。
    • 9. 发明授权
    • Capacitive pressure transducer system
    • 电容式压力传感器系统
    • US4987782A
    • 1991-01-29
    • US416698
    • 1989-10-03
    • Zvi ShkediJames S. LepkowskiKarl S. Pogany, Jr.Gerald W. Meyer
    • Zvi ShkediJames S. LepkowskiKarl S. Pogany, Jr.Gerald W. Meyer
    • G01L13/06G01L9/00G01L9/12
    • G01L9/0075G01L9/125
    • A capacitive ratioing oscillator circuit utilizing a prior art pressure capsule, but through modification of the state variable oscillator circuit achieves a digital output which varies with the square root of the capacitance ratio C35 C.sub.p /C.sub.r. In this sensor the dielectric constant of the pressure media is measured in time with the pressure difference measurement. The oscillator includes a differentiator-inventor step herein each of capacitors C.sub.r and C.sub.p are connected to a common point and resistors are connected in parallel with each of said capacitors and with the common point connected to the inverting terminal of a first operational amplifier, a feedback line is connected from the output of the operational amplifier to the second resistor opposite the common point, first and second integrator circuits are connected to the output of said operational amplifier, a limit circuit is connected across the output of the second integrator circuit, and a feedback line is connected from the output of the second integrator circuit, and a feedback line is connected from the output of the second integrator circuit to the input of the inverter stage.
    • 利用现有技术压力胶囊的电容比例振荡器电路,但是通过状态可变振荡器电路的修改实现了随电容比C35 Cp / Cr的平方根而变化的数字输出。 在该传感器中,压力介质的介电常数随着压力差测量在时间上进行测量。 振荡器包括微分器发明器步骤,电容器Cr和Cp中的每一个连接到公共点,并且电阻器与每个所述电容器并联连接,并且公共点连接到第一运算放大器的反相端子,反馈 线从运算放大器的输出连接到与公共点相反的第二电阻,第一和第二积分器电路连接到所述运算放大器的输出,限制电路连接在第二积分器电路的输出端上, 反馈线从第二积分电路的输出端连接,反馈线从第二积分电路的输出连接到逆变器级的输入。