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    • 1. 发明申请
    • FLUID POWER CONTROL SYSTEM
    • 流体动力控制系统
    • WO2008118072A1
    • 2008-10-02
    • PCT/SE2008/050302
    • 2008-03-18
    • SCANIA CV AB (PUBL)JIEWERTZ, Sten
    • JIEWERTZ, Sten
    • F16K31/06F15B13/044
    • F15B11/08F15B11/006F15B2211/20538F15B2211/30575F15B2211/427F15B2211/527F15B2211/7052
    • A fluid power control system has a seat valve (10, 10') comprising a first port (12), a second port (14), a valve body (16) biased by a spring (20) to a closed valve position and subjected to a fo rce in an opening direction when said first port is pressurized, and an electromagnet (22) capable of moving said valve body to an open valve position when energized. The system has also a pressure source (30), a fluid power actuator (40), a fluid line (32) fo r communicating pressurized fluid from the pressure source between the valve and the actuator, and an electronic control unit (50) for energizing the electromagnet by electric current pulses having a varying pulse ratio. To provide a system that uses a seat valve (10, 10') of the on-off type which is capable of controlling the actuator (40) in a proportional manner, the first port (12) is exclusively a fluid inlet port and the second port (14) is exclusively a fluid outlet port.
    • 流体动力控制系统具有座阀(10,10'),其包括第一端口(12),第二端口(14),由弹簧(20)偏压到闭合阀位置的阀体(16),并经受 当所述第一端口被加压时朝向打开方向的方向;以及电磁体(22),当通电时能够将所述阀体移动到打开的阀位置。 该系统还具有压力源(30),流体动力致动器(40),在压力源和致动器之间连通加压流体的流体管线(32),以及电子控制单元(50),用于 通过具有变化的脉冲比的电流脉冲激励电磁体。 为了提供使用能够以比例的方式控制致动器(40)的开 - 关式的座阀(10,10')的系统,第一端口(12)仅仅是流体入口端口,并且 第二端口(14)仅为流体出口。
    • 2. 发明申请
    • PROCESS AND DEVICE FOR THE CONTROL OF SAFETY VALVES
    • 用于控制安全阀的过程和装置
    • WO1988002510A1
    • 1988-04-07
    • PCT/DE1987000446
    • 1987-10-01
    • BOPP & REUTHER GMBHHARTFIEL, JohannesSCHMITT, Manfred
    • BOPP & REUTHER GMBH
    • G05D16/20
    • G05D16/2093F15B19/002F15B2211/50509F15B2211/50554F15B2211/5158F15B2211/5159F15B2211/527F16K17/02F16K31/1245Y10T137/0396Y10T137/7761Y10T137/86389
    • In a process for the control of safety valves, the valve sealing body is pressed on to the valve seat against the pressure of the medium to be sealed off by a regulating cylinder linked to a hydraulic control circuit. When the actuating pressure is reached, quickly-reacting magnetic valves open, thus evacuating the hydraulic fluid from the regulating cylinder and triggering the valve opening stroke. When the actuating pressure falls below a certain level, the evacuating magnetic valves close and hydraulic fluid is again supplied to the regulating cylinder by magnetic inlet valves. To control the valve stroke, characteristic pressure and pressure change rate curves are drawn and electronically stored. The pressure of the medium during short cycles of operation is also measured and stored. After the pressure change rate has been calculated, the length of the stroke step for each cycle of operation is determined. The computer then calculates the amount of hydraulic fluid to be evacuated or to be supplied during each cycle of operation, and the opening pulses of the magnetic valves during each cycle of operation are determined on that basis, so that the opening and closing of the safety valve are controlled in accordance with the characteristic curve, in small stroke steps at low pressure change rates and in large steps or in a global step at high pressure change rates.
    • 在控制安全阀的过程中,阀密封体抵抗与液压控制回路连接的调节缸被密封的介质的压力压在阀座上。 当达到启动压力时,快速反应的电磁阀打开,从而将液压流体从调节气缸排出并触发阀门打开行程。 当致动压力低于一定水平时,抽真空的阀门关闭,液压流体再次通过磁力入口阀供给调节缸。 为了控制阀门行程,绘制和电子存储特征压力和压力变化率曲线。 在短时间的操作过程中介质的压力也被测量和存储。 在计算了压力变化率之后,确定每个操作循环的行程步长。 然后,计算机计算在每个操作循环期间要抽真空或供应的液压流体的量,并且在每个循环操作期间确定电磁阀的打开脉冲,从而确定安全性的打开和关闭 阀门根据特性曲线进行控制,在小压力变化率较小的冲程步进中,大步进或全压式高压变化率下进行控制。
    • 4. 发明申请
    • VERFAHREN UND EINRICHTUNG ZUR ELEKTRISCHEN ANSTEUERUNG EINES VENTILS MIT EINEM MECHANISCHEN SCHLIEßELEMENT
    • 方法和设备的控制电动阀用机械密封元件
    • WO2006119751A2
    • 2006-11-16
    • PCT/DE2006/000814
    • 2006-05-12
    • CONTI TEMIC MICROELECTRONIC GMBHLEIPNITZ, Klaus
    • LEIPNITZ, Klaus
    • F02D41/02F16H61/02F16K29/00B60G17/018H03K5/01
    • F16K31/0675F02D41/004F02D41/1408F15B2211/328F15B2211/427F15B2211/527H03K7/08
    • Das Verfahren und die Einrichtung dienen zur elektrischen Ansteuerung eines Ventils (2) mit einem mechanischen Schließelement (4) mittels eines elektrischen Stromes (I). Letzterer wird mittels eines pulsweitenmodulierten PWM-Signals (S p ) erzeugt wird, das eine PWM-Periodendauer (T PWM ) und ein Tastverhältnis aufweist. Ein Tastverhältnissignal (TV) setzt sich aus einem Grundanteil (S Q ) und einem Überlagerungsanteil (S Ü ) mit einer Überlagerungsperiodendauer (T Ü ) zusammen, innerhalb der das Tastverhältnissignal (TV) zwischen einem hohen und einem niedrigen Tastverhältniswert umgeschaltet wird. Es wird überprüft, ob die Addition des Grundanteils (S G ) und des ursprünglichen Überlagerungsanteils (S Ü ) einen fiktiven Tastverhältniswert von kleiner als Null oder von größer als Eins liefert. Falls ja wird eine Korrektur vorgenommen, indem der niedrige Tastverhältnis wert auf mindestens Null und der hohe Tastverhältnis wert angehoben wird bzw. der hohe Tastverhältniswert auf höchstens Eins und der niedrige Tastverhältniswert abgesenkt wird, und indem eine Tastverhältnisdauer vom Beginn der Überlagerungsperiodendauer (T Ü ) bis zum Umschalten zwischen den beiden Tastverhältniswerten als ein ganzzahliges Vielfaches der PWM-Periodendauer (T PWM ) eingestellt wird. Bei der Korrektur wird der Mittelwert des Tastverhältnissignals (TV) nicht verändert.
    • 该方法和设备被用于通过电流(I)的装置的阀(2)与机械锁定元件(4)的电控制。 后者(S P )由具有一个PWM周期持续时间的脉冲宽度调制PWM信号(T PWM )和占空比生成。 占空比信号(TV)是由一基底部分的(S Q ),并与覆盖周期(T OB )的覆盖部(S OB )一起 高和低占空比值之间,其占空比(TV)内进行切换。 检查是否加入碱部分的(S )和原始覆盖部(S Ü)返回小于零或大于一的假想的占空比。 如果是的话,校正由低占空比制成值得增加值至少为零,高占空比或高占空比降低到最多一个的和低占空比和由Tastverhältnisdauer(从重叠期间T 的开始 Ü)到两个占空比值之间的切换(作为时间t PWM )PWM周期的整数倍被设置。 在校正占空比信号(TV)的平均值不变化。
    • 6. 发明申请
    • METHOD AND DEVICE FOR ELECTRICALLY ACTUATING A VALVE WITH A MECHANICAL CLOSING ELEMENT
    • 方法和设备的控制电动阀用机械密封元件
    • WO2006119751A3
    • 2007-02-08
    • PCT/DE2006000814
    • 2006-05-12
    • CONTI TEMIC MICROELECTRONICLEIPNITZ KLAUS
    • LEIPNITZ KLAUS
    • F02D41/02B60G17/018F16H61/02F16K29/00H03K5/01
    • F16K31/0675F02D41/004F02D41/1408F15B2211/328F15B2211/427F15B2211/527H03K7/08
    • The method and device serve to electrically actuate a valve (2) with a mechanical closing element (4) by means of an electric current (I). The latter is generated by means of a pulse width-modulated PWM signal (S p ) that has a PWM period (T PWM ) and a pulse duty factor. A pulse duty factor signal (TV) is composed of a base portion (S Q ) and of a superimposed portion (S U ) with a superimposition period (T U ), during which the pulse duty factor signal (TV) is switched between a high and a low pulse duty factor value. It is verified whether the addition of the base portion (S G ) and of the original superimposed portion (S U ) furnishes a fictitious pulse duty factor value of less than zero or greater than one. If yes, a correction is carried out by increasing the low pulse duty factor to at least zero and increasing the high pulse duty factor is increased to a corrected high pulse duty factor or the high pulse duty factor is lowered to no greater than one, and the low pulse duty factor is lowered to a corrected low pulse duty factor, and in that a pulse duty factor period is set from the start of the superimposition period (T U ) up to the switching between both pulse duty factor values as an integral multiple of the PWM period (T PWM ). During the correction, the mean value of the pulse duty factor signal (TV) is not changed.
    • 该方法和设备被用于通过电流(I)的装置的阀(2)与机械锁定元件(4)的电控制。 后者(S P )由具有一个PWM周期持续时间的脉冲宽度调制PWM信号(T PWM )和占空比生成。 占空比信号(TV)是由一基底部分的(S Q ),并与覆盖周期(T OB )的覆盖部(S OB )一起 高和低占空比值之间,其占空比(TV)内进行切换。 检查是否加入碱部分的(S )和原始覆盖部(S Ü)返回小于零或大于一的假想的占空比。 如果是的话,校正由低占空比制成值得增加值至少为零,高占空比或高占空比降低到最多一个的和低占空比和由Tastverhältnisdauer(从重叠期间T 的开始 Ü)到两个占空比值之间的切换(作为时间t PWM )PWM周期的整数倍被设置。 在校正占空比信号(TV)的平均值不变化。
    • 8. 发明申请
    • METHOD, DEVICE AND SYSTEM
    • 方法,设备和系统
    • WO2007003583A1
    • 2007-01-11
    • PCT/EP2006/063706
    • 2006-06-29
    • Haldex Traction ABYNGVESSON, Christer
    • YNGVESSON, Christer
    • H01F7/18F15B13/044
    • F16K31/0675F15B2211/527F16K37/0083H01F7/1844H01F2007/185
    • The present invention relates to a method for inter alia monitoring and controlling a solenoid associated with a proportional valve. The solenoid comprises a coil, an armature which is movable in relation to the coil, and the proportional valve comprises a plunger that is controlled by the armature/coil system and a housing for accommodating the plunger. The method comprises the steps of supplying the coil with a nominal drive voltage having a low-level amplitude fluctuation, obtaining or alternatively determining a level of an average current in the coil and a level of the fluctuation of said coil current, determining a position corresponding to the inductance, given by the average coil current and the coil current fluctuation, by using a predetermined value, and comparing a nominal position, given by the average coil current by means of a controller, with an actual position as calculated above. The present invention also relates to a device and system utilizing the above method.
    • 本发明涉及一种用于特别地监测和控制与比例阀相关联的螺线管的方法。 螺线管包括线圈,相对于线圈可移动的电枢,比例阀包括由电枢/线圈系统控制的柱塞和用于容纳柱塞的壳体。 该方法包括以下步骤:为线圈提供具有低电平幅度波动的标称驱动电压,获得或替代地确定线圈中的平均电流的电平和所述线圈电流的波动的水平,确定相应的位置 通过使用预定值,由平均线圈电流和线圈电流波动给出的电感,并将通过控制器的平均线圈电流给出的标称位置与上面计算的实际位置进行比较。 本发明还涉及利用上述方法的装置和系统。