Linear velocity sensor and method for reducing non-linearity of the sensor output signal
    31.
    发明授权
    Linear velocity sensor and method for reducing non-linearity of the sensor output signal 失效
    线性速度传感器和减少传感器输出信号非线性的方法

    公开(公告)号:US06876194B2

    公开(公告)日:2005-04-05

    申请号:US10373432

    申请日:2003-02-26

    IPC分类号: G01P3/52 G10P3/46

    CPC分类号: G01P3/52

    摘要: Linear velocity sensor and method for reducing non-linearity in the output signal of the sensor are provided. The sensor comprises a ferromagnetic housing including an opening. The sensor further comprises a spool disposed in the housing. The spool includes a bore for receiving a slidable ferromagnetic rod. The ferromagnetic rod may be extendable through the opening in the housing. A magnet is mounted at the one end of the rod distal from the opening when the rod is substantially inserted in the bore. A coil is wound on the spool. The number of turns of the coil is arranged to taperingly increase as the coil progresses from an end of the spool proximate the opening in the housing to the opposite end of the spool. The tapering arrangement for the number of turns of the coil is selected to reduce non-linearity of an output signal of the coil indicative of linear velocity.

    摘要翻译: 提供了线速度传感器和减小传感器输出信号非线性的方法。 该传感器包括一个包含开口的铁磁壳体。 传感器还包括设置在壳体中的线轴。 线轴包括用于容纳滑动铁磁棒的孔。 铁磁棒可以通过壳体中的开口延伸。 当杆基本上插入孔中时,磁体安装在远离开口的杆的一端。 线圈缠绕在线轴上。 线圈的匝数被布置为随着线圈从靠近壳体中的开口的线轴的端部前进到线轴的相对端而逐渐增加。 选择用于线圈匝数的渐缩布置以减少线圈的输出信号的线性,其指示线速度。

    Capacitive angular position sensor
    32.
    发明授权
    Capacitive angular position sensor 失效
    电容角位置传感器

    公开(公告)号:US06774642B2

    公开(公告)日:2004-08-10

    申请号:US10228817

    申请日:2002-08-27

    IPC分类号: G01B730

    CPC分类号: G01D5/2405

    摘要: A sensor for sensing the angular position of a rotatable body including a stationary transmitter plate with at least one transmitter electrode, a stationary receiver plate with at least a first and a second receiver electrode, and a rotor formed of a dielectric material and positioned between the facing electrodes of the plates. The rotor is smaller than the plates and rotates with the rotatable body to change the capacitance between the transmitter electrode(s) and opposed receiver electrodes. The induced voltages on the receiver electrodes indicate the angular position of the rotatable body. Preferably, the sensor uses a square waveform signal and two transmitter electrodes receive signals 180 degrees out of phase. Then, four receiver electrodes forming two receiver pairs are connected so that the current flowing between each pair is measured and converted to a voltage. A lookup table compares the values of the voltage pairs to known values from calibration, giving the angular position.

    摘要翻译: 一种用于感测包括具有至少一个发射器电极的固定发射器板的可旋转主体的角位置的传感器,具有至少第一和第二接收器电极的固定接收板,以及由电介质材料形成并位于 面对板的电极。 转子小于板,并与可旋转体一起旋转以改变发射器电极和相对的接收器电极之间的电容。 接收器电极上的感应电压指示可旋转体的角位置。 优选地,传感器使用方波信号,并且两个发射器电极接收180度异相的信号。 然后,形成两个接收器对的四个接收器电极被连接,以便测量每一对之间流动的电流并将其转换成电压。 查找表将电压对的值与校准中的已知值进行比较,给出角位置。

    Magnetic flux regulator to reduce performance change caused by amp-turn variation
    33.
    发明授权
    Magnetic flux regulator to reduce performance change caused by amp-turn variation 失效
    磁通量调节器可减少由放大转矩变化引起的性能变化

    公开(公告)号:US06707174B2

    公开(公告)日:2004-03-16

    申请号:US09955755

    申请日:2001-09-19

    IPC分类号: F16K3106

    摘要: A valve assembly has a valve body defining a chamber with a controlled outlet. A stop and seat are spaced from each other and are supported within the chamber in axial alignment with the controlled outlet. A plunger reciprocably moves between the stop and the seat to open and close the controlled outlet through the operation of a solenoid assembly. The solenoid assembly includes a spool supported between two plates. An electrical coil is disposed around the spool for receiving electrical current and generating a magnetic flux. A primary magnetic flux loop forms a path around the spool, through the two plates, the plunger and the stop to move the plunger away from the controlled outlet. An annular magnetic flux regulator made of magnetic conductive material is disposed in the spool to provide a secondary bypass magnetic flux flow path for a portion of the generated magnetic flux during high amp-turn operating conditions. The magnetic flux flowing through the bypass path does not contribute to the magnetic force acting on the plunger.

    摘要翻译: 阀组件具有限定具有受控出口的室的阀体。 止动件和座椅彼此间隔开并且被支撑在腔室内与受控出口轴向对准。 柱塞在止动件和座椅之间往复运动,以通过螺线管组件的操作来打开和关闭受控制的出口。 螺线管组件包括支撑在两个板之间的线轴。 电线圈设置在线轴周围,用于接收电流并产生磁通量。 初级磁通回路形成围绕阀芯的路径,通过两个板,柱塞和止动件将柱塞从受控出口移开。 由磁导电材料构成的环形磁通量调节器设置在线轴中,以在高放大转弯操作条件期间为产生的磁通量的一部分提供次级旁路磁通流动路径。 流过旁通路径的磁通量不会影响作用在柱塞上的磁力。

    Method for compensating signals from an absolute angular position sensor assembly
    34.
    发明授权
    Method for compensating signals from an absolute angular position sensor assembly 失效
    用于补偿来自绝对角位置传感器组件的信号的方法

    公开(公告)号:US06697680B2

    公开(公告)日:2004-02-24

    申请号:US09924875

    申请日:2001-08-08

    IPC分类号: G01C1900

    CPC分类号: G01D5/24476 G01D5/2452

    摘要: A method for compensating signals from an absolute angular position sensor assembly is used in conjunction with an absolute angular position sensor assembly having an input gear coupled to a rotating shaft. The input gear is meshed with an output gear that rotates as the input gear and the shaft rotate. The sensor assembly includes an input gear sensor and an output gear sensor placed in proximity to the input gear and output gear, respectively. The gears are configured so as to be sensed by the sensors. The method includes determining an angular position compensation value that is used to adjust an absolute position of the input gear, which in turn is used to compute the absolute position of the rotating shaft. The angular position compensation value for the revolution N+1 is determined as APCVN+1=(APRSN−AAPIGN)/&agr;+APCVN, wherein APCVN+1 is the angular position compensation value for the revolution N+1, APRSN is the angular position of the rotating shaft for the revolution N, AAPIGN is the adjusted angular position of the input gear for the revolution N, &agr; is a compensation factor that is greater than one, and APCVN is angular position compensation value for the revolution N.

    摘要翻译: 与绝对角度位置传感器组件一起使用用于补偿来自绝对角位置传感器组件的信号的方法,其具有联接到旋转轴的输入齿轮。 输入齿轮与输入齿轮啮合,输出齿轮随着输入齿轮和轴旋转而旋转。 传感器组件包括分别放置在输入齿轮和输出齿轮附近的输入齿轮传感器和输出齿轮传感器。 齿轮构造成由传感器感测。 该方法包括确定用于调整输入齿轮的绝对位置的角度位置补偿值,该输入齿轮又用于计算旋转轴的绝对位置。 旋转角度位置补偿值N + 1被确定为APCVN + 1 =(APRSN-AAPIGN)/α+ APCVN,其中APCVN + 1是旋转角度位置补偿值N + 1,APRSN是角位置 旋转轴用于旋转N,AAPIGN是旋转输入齿轮的调整角位置N,α为大于1的补偿系数,APCVN为转数N的角位置补偿值。

    Method and apparatus for a solenoid assembly
    35.
    发明授权
    Method and apparatus for a solenoid assembly 失效
    螺线管组件的方法和装置

    公开(公告)号:US06615780B1

    公开(公告)日:2003-09-09

    申请号:US10222120

    申请日:2002-08-16

    IPC分类号: F01L134

    摘要: A solenoid assembly includes a solenoid having a magnetic circuit comprising stationary primary and secondary pole pieces and a moveable armature. The primary pole piece includes an inner cylindrical wall operable to define, with the armature, a fixed radial gap for the passage of magnetic flux, and a tapered outer wall operable to increase the mass of the pole piece through which flux may pass, as the armature moves axially within cylindrical inner wall, the primary pole piece further includes an inwardly tapered, conical portion that extends toward the armature which operates, with an associated conical portion on a periphery of the moveable armature, to substantially maintain the axial opening force on the armature by establishing a secondary gap for the passage of magnetic flux as the armature approaches the conical tapered portion of the cylindrical wall to compensate for the saturation of magnetic flux through the fixed air gap.

    摘要翻译: 螺线管组件包括具有磁路的螺线管,该磁路包括固定的初级和次级极片以及可移动的电枢。 主极片包括内圆柱壁,其可操作以与电枢一起限定用于磁通通过的固定径向间隙,以及锥形外壁,其可操作以增加磁通可以通过的极靴的质量,如 衔铁在圆柱形内壁内轴向移动,主极片还包括朝向电枢延伸的向内锥形的锥形部分,该电枢与可移动电枢的周边上的相关联的锥形部分运行,从而基本上保持轴向开启力 电枢通过在衔铁接近圆柱形壁的圆锥形锥形部分时建立用于磁通通过的次级间隙,以补偿通过固定气隙的磁通量的饱和。

    Solenoid valve
    36.
    发明授权

    公开(公告)号:US06543744B2

    公开(公告)日:2003-04-08

    申请号:US09882230

    申请日:2001-06-15

    IPC分类号: F16K3102

    摘要: A solenoid valve includes an outlet tube and a plunger stop. A plunger is slidably disposed within the solenoid valve between the outlet tube and the plunger stop. The plunger is movable between a closed position wherein the plunger engages the outlet tube to block fluid flow through an outlet passage formed in the outlet tube and an open position wherein the plunger is distanced from the outlet tube to permit fluid flow through the outlet passage. The solenoid valve also includes a coil that is energizable to bias the plunger between the closed position and the open position. The plunger stop is configured so that the magnitude of the force of attraction between the plunger and the plunger stop is linearly proportional to the magnitude of the current applied to the coil. Moreover, the magnitude of the force of attraction between the plunger and the plunger stop is independent of the position of the plunger.

    Method and device for determining absolute angular position of a rotating body
    37.
    发明授权
    Method and device for determining absolute angular position of a rotating body 失效
    用于确定旋转体的绝对角位置的方法和装置

    公开(公告)号:US06519549B1

    公开(公告)日:2003-02-11

    申请号:US09628513

    申请日:2000-07-31

    IPC分类号: G01C1700

    摘要: A method and device for determining the absolute angular position of a rotating body includes an input gear attached to a rotating body and meshed with a single output gear. The gear ratio between the input gear and the output gear is a non-integer, so that the output gear will be out of phase with the input gear as the input gear completes successive revolutions. A sensor is placed in close proximity to the output gear and provides a signal to a microprocessor representing the angular position of the output gear. This signal is used by the microprocessor to calculate the absolute angular position of the input gear and thus, the absolute position of the attached rotating body.

    摘要翻译: 用于确定旋转体的绝对角位置的方法和装置包括附接到旋转体并与单个输出齿轮啮合的输入齿轮。 输入齿轮与输出齿轮之间的齿轮比为非整数,因此当输入齿轮连续转动时,输出齿轮将与输入齿轮异相。 传感器放置在靠近输出齿轮的位置,并向代表输出齿轮的角位置的微处理器提供信号。 该信号由微处理器用于计算输入齿轮的绝对角位置,从而计算附接旋转体的绝对位置。

    Angular position sensor including rotor with spaced bar magnets
    38.
    发明授权
    Angular position sensor including rotor with spaced bar magnets 失效
    角度位置传感器包括具有间隔开的磁棒的转子

    公开(公告)号:US06518750B1

    公开(公告)日:2003-02-11

    申请号:US09636014

    申请日:2000-08-10

    IPC分类号: G01B730

    CPC分类号: G01D5/145

    摘要: An angular position sensor includes a rotor attached to a shaft. A first magnet and a second magnet are attached to the surface of the rotor. Moreover, a first concentrator and a second concentrator are disposed around the perimeter of the rotor opposite each other. A space is established between the first concentrator and second concentrator, and a magnetic field sensing element is disposed in the space. As the rotor rotates with respect to the sensing element, the sensing element outputs a linear signal representing the location of the rotor with respect to the sensing element over a range between negative ninety degrees and positive ninety degrees.

    摘要翻译: 角位置传感器包括附接到轴的转子。 第一磁体和第二磁体附接到转子的表面。 此外,第一集中器和第二集中器围绕转子的周边布置成彼此相对。 在第一集中器和第二集中器之间建立空间,并且在该空间中设置磁场感测元件。 当转子相对于感测元件旋转时,感测元件在负的九十度和正九十度之间的范围上输出表示转子相对于感测元件的位置的线性信号。

    Method for measuring fluid level
    39.
    发明授权
    Method for measuring fluid level 失效
    液位测量方法

    公开(公告)号:US06497144B1

    公开(公告)日:2002-12-24

    申请号:US09628889

    申请日:2000-07-31

    申请人: Yingjie Lin

    发明人: Yingjie Lin

    IPC分类号: G01F2300

    CPC分类号: G01F23/266

    摘要: A method for measuring fluid level uses data sensed by an oil level sensor to determine the level of oil in a motor vehicle oil pan. The oil level sensor can include a receiver tube oriented upright in the oil pan of the vehicle. A level tube is disposed in the receiver tube and below the level tube is a reference tube. A circuit is electrically connected to the tubes for outputting a signal representative of oil level in the oil pan. As the engine oil level decreases within the level tube, the output of the sensor drops. The method includes providing a series of signals to the sensor and recording the output from the sensor with the sensor in a variety of configurations. This information is then processed to determine the ratio of measured oil in the oil pan to the proper operating oil level.

    摘要翻译: 用于测量液位的方法使用由油位传感器感测的数据来确定机动车油盘中的油位。 油位传感器可以包括直立在车辆的油盘中的接收管。 液位管设置在接收管中,液位管下方是参考管。 电路电连接到管,用于输出代表油底壳油位的信号。 当发动机油位在液位管内降低时,传感器的输出下降。 该方法包括向传感器提供一系列信号,并以传感器将传感器的输出记录在各种配置中。 然后处理该信息以确定油盘中测量的油与正确的操作油位之比。

    Solenoid valve for a vehicle carbon canister
    40.
    发明授权
    Solenoid valve for a vehicle carbon canister 失效
    用于车辆碳罐的电磁阀

    公开(公告)号:US06347616B1

    公开(公告)日:2002-02-19

    申请号:US09567933

    申请日:2000-05-10

    IPC分类号: F02M3302

    摘要: The Solenoid Valve For A Vehicle Carbon Canister includes a housing with an outlet end and a inlet end. A portion of the inlet end of the housing extends around an inlet port formed in the inlet end to create an air inlet tube. Inserted in the outlet end of the housing is an end cap formed with an outlet port. The end cap extends around the outlet port to form an air outlet nipple having an internal portion and an external portion. Formed around the internal portion of the air outlet nipple is an annular cavity. Disposed within the housing is a solenoid mechanism slightly smaller than the housing to form an annular air passage having sufficient area to provide the proper air flow, but also having a thickness small enough to prevent carbon particles from passing through the annular air passage. A continuous air passage is formed by the air inlet tube, the annular air passage, and the air outlet nipple. A plunger is included to block the flow of air through the air outlet nipple. When the plunger is in the open position, the internal geometry of the present invention, such as the thickness of the annular air passage and the drastic increase in volume between the annular air passage and the annular cavity, minimizes contamination by carbon particles.

    摘要翻译: 用于车辆的电磁阀碳罐包括具有出口端和入口端的壳体。 壳体的入口端的一部分围绕形成在入口端的入口端部延伸以形成进气管。 插入壳体的出口端是形成有出口的端盖。 端盖围绕出口延伸以形成具有内部部分和外部部分的空气出口接头。 形成在空气出口接头的内部周围是环形空腔。 设置在壳体内的是比壳体稍小的螺线管机构,以形成具有足够面积的环形空气通道,以提供适当的空气流动,但也具有足够小的厚度以防止碳颗粒通过环形空气通道。 连续空气通道由进气管,环形空气通道和出气口组成。 包括一个柱塞以阻止通过出气口的空气流。 当柱塞处于打开位置时,本发明的内部几何形状,例如环形空气通道的厚度和环形空气通道与环形腔之间的体积急剧增加,使得碳颗粒的污染最小化。