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    • 1. 发明授权
    • Low cost binary encoded crankshaft position sensor
    • 低成本二进制编码曲轴位置传感器
    • US06268721B1
    • 2001-07-31
    • US09250826
    • 1999-02-17
    • Thaddeus SchroederRaymond O. Butler, Jr.Bruno Patrice Bernard Lequesne
    • Thaddeus SchroederRaymond O. Butler, Jr.Bruno Patrice Bernard Lequesne
    • G01B730
    • G01D5/147G01D5/246G01D5/2492
    • A detector of position of rotation of a target wheel via the outputs of a differential sensor employing two matched MRs to extract position of rotation information from the target wheel. The target wheel is provided with wide and narrow slots or teeth circumferentially arranged such that, for example, 24 zones are created wherein each zone ranges from the center of a wide slot to the center of a narrow slot, and wherein each zone occupies 15 degrees circumferentially. The two matched MRs of the sensor are powered by matched current sources and matched magnetic biasing and are aligned in the circumferential direction of the target wheel. The MRs generate two angularly offset signals from the passage of a single slot (or tooth) of the target wheel which are input to a signal conditioning circuit. Within the signal conditioning circuit, the two sensor signals are differentially amplified to produce a differential signal whereby the width of the slot is used to encode a binary position pulse. The spacing between the two matched MRs is such that their output resistances and, thus, their output signals become equal (crossover) in the middle of a slot whereby a wide slot causes the crossover to occur at a lower value of resistance (or output signal) than that of a narrow slot. The low level signal from a wide slot is assigned the binary value of “0” while the high level signal is assigned the binary value of “1” although the reverse assignments of binary values could also be used. Alternatively, the present invention is implementable by width encoded teeth instead of slots.
    • 通过使用两个匹配的MR的差分传感器的输出,目标车轮的旋转位置的检测器,以从目标车轮提取旋转信息的位置。 目标轮设置有宽且窄的槽或齿周向布置,使得例如形成24个区域,其中每个区域从宽狭槽的中心到窄狭槽的中心,并且其中每个区域占据15度 周向地。 传感器的两个匹配的MR由匹配的电流源和匹配的磁偏压供电,并在目标轮的圆周方向上对准。 MRs从目标轮的单个槽(或齿)通过输入到信号调节电路的两个角度偏移信号。 在信号调理电路内,两个传感器信号被差分放大以产生差分信号,由此槽的宽度用于对二进制位置脉冲进行编码。 两个匹配的MR之间的间隔使得它们的输出电阻以及因此它们的输出信号在槽的中间变得相等(交叉),由此宽的槽使得交叉发生在较低的电阻值(或输出信号 )比狭窄的槽。 尽管可以使用二进制值的反向分配,但是在高电平信号被赋予二进制值“1”的情况下,来自宽时隙的低电平信号被分配二进制值“0”。 或者,本发明可由宽度编码的齿代替槽实现。
    • 4. 发明授权
    • Ion sense biasing circuit
    • 离子感偏置电路
    • US06186129B1
    • 2001-02-13
    • US09365568
    • 1999-08-02
    • Raymond O. Butler, Jr.
    • Raymond O. Butler, Jr.
    • F02P1700
    • G01M15/11F02P17/12F02P2017/125G01L23/225G01M15/10
    • A biasing circuit for an ion current measurement system draws power from a primary side of the ignition coil, and applies a positive polarity bias voltage to a low voltage side of a secondary winding of the ignition coil. The biasing circuit includes a silicon-controlled rectifier (SCR) which has an on state for carrying spark current during a spark interval of operation, and further includes an off state which prevents the stored biasing voltage on a capacitor from being shunted to ground, thereby allowing ion current sensing through the low voltage side of the secondary winding. The low on-state voltage drop of the SCR during conduction of spark current minimizes losses of spark energy.
    • 用于离子电流测量系统的偏置电路从点火线圈的初级侧抽取功率,并向点火线圈的次级绕组的低压侧施加正极性偏置电压。 该偏置电路包括一个可控硅整流器(SCR),它在工作的火花间隔期间具有接通火花电流的导通状态,并且还包括防止存储的电容器上的偏置电压被分流到地的断开状态,由此 允许通过次级绕组的低压侧检测离子电流。 在导通火花放电电流期间,SCR的低导通状态电压降最小化了火花能量的损失。
    • 7. 发明授权
    • Spark plug mounted thick film strain gauge
    • 火花塞安装厚膜应变片
    • US06834538B2
    • 2004-12-28
    • US10682664
    • 2003-10-09
    • Ronald J. KiessLewis Henry LittleMarion E. EllisRaymond O. Butler, Jr.
    • Ronald J. KiessLewis Henry LittleMarion E. EllisRaymond O. Butler, Jr.
    • G01M1500
    • G01L23/18G01L23/22
    • A thick film resistor strain gauge is applied to a stainless steel shell portion of a spark plug. There are two preferable ways of applying a thick film resistor to the metal shell. In a first embodiment, the thick film resistor may be directly printed on to the shell portion with special screen printing equipment. In a second embodiment, the thick film resistor is printed and applied as a decal to the shell portion. The thick film resistors may be included in a quarter, a half, or a full wheatstone bridge strain gauge circuit. One of two embodiments of an automatic drift compensating circuit is used to determine the change in resistance experienced by the thick film resistors affixed to the spark plug. Either one of the automatic drift compensation circuits output a voltage signal which is proportional to the pressure changes occurring inside the engine cylinder into which the spark plug is threaded.
    • 将厚膜电阻应变仪施加到火花塞的不锈钢外壳部分。 将厚膜电阻器应用于金属外壳的优选方式有两种。 在第一实施例中,厚膜电阻器可以用特殊的丝网印刷设备直接印刷在外壳部分上。 在第二实施例中,厚膜电阻器作为贴花印刷并施加到壳部分。 厚膜电阻器可以包括在四分之一,一半或全麦克斯通电桥应变仪电路中。 自动漂移补偿电路的两个实施例之一用于确定固定在火花塞上的厚膜电阻所经历的电阻变化。 自动漂移补偿电路中的任一个输出与发动机气缸内发生的压力变化成比例的电压信号,发动机气缸内插有火花塞。
    • 8. 发明授权
    • Shield and spring interface to a spark plug from a pencil coil
    • 屏蔽弹簧与铅笔线圈的火花塞接口
    • US06360706B1
    • 2002-03-26
    • US09518574
    • 2000-03-03
    • Albert Anthony SkinnerRaymond O. Butler, Jr.Viorel N. Moga
    • Albert Anthony SkinnerRaymond O. Butler, Jr.Viorel N. Moga
    • F02P100
    • H01T13/04
    • An interface device for interfacing a pencil coil to a spark plug is provided. The interface device comprises a substantially C-shaped spring adapted to mechanically and electrically engage a pencil coil shield and also adapted to make electrical contact with a spark plug ground while the spring remains mechanically and electrically engaged to the pencil coil shield. Also provided is a pencil coil shield assembly for interfacing a pencil coil to a spark plug. The pencil coil shield assembly comprises a substantially cylindrical pencil coil and a spring. The substantially cylindrical pencil coil shield is adapted to surround the pencil coil. The spring is mechanically and electrically engaged with the pencil coil shield and is adapted to make electrical contact with a spark plug ground while the spring remains mechanically and electrically engaged to the pencil coil shield. The interface device and/or pencil coil shield assembly can be configured to reduce RFI from the secondary current winding currents of a pencil coil. In addition, each can be manufactured using inexpensive and uncomplicated manufacturing and installation techniques, and using starting materials and parts that are relatively inexpensive. Also provided is a method of reducing RFI from secondary winding currents of a pencil coil by, among other things, electrically connecting the substantially cylindrical shield to a low voltage terminal of a secondary winding of the pencil coil, and electrically connecting the substantially cylindrical shield to a spark plug ground of a spark plug associated with the pencil coil.
    • 提供了用于将铅笔线圈与火花塞接口的接口装置。 接口装置包括基本上为C形的弹簧,其适于机械地和电接合铅笔线圈护罩,并且还适于在弹簧保持与铅笔线圈护罩机械地和电接合的情况下与火花塞接地电接触。 还提供了用于将铅笔线圈与火花塞接口的铅笔线圈屏蔽组件。 铅笔线圈屏蔽组件包括大致圆柱形的铅笔线圈和弹簧。 基本上圆柱形的铅笔线圈护罩适于围绕铅笔线圈。 弹簧与铅笔线圈屏蔽机械和电气接合,并且适于在弹簧保持与铅笔线圈护罩机械和电接合的同时与火花塞接地电接触。 接口装置和/或铅笔线圈屏蔽组件可被配置为从铅笔线圈的次级电流绕组电流中减小RFI。 另外,可以使用廉价且不复杂的制造和安装技术,并且使用相对便宜的起始材料和零件来制造。 还提供了一种通过将基本上圆柱形的屏蔽电连接到铅笔线圈的次级绕组的低电压端子并将基本上圆柱形的屏蔽电连接到 与铅笔线圈相关联的火花塞的火花塞接地。
    • 10. 发明授权
    • Control apparatus for staggered spark plug firing in a dual-plug spark ignition engine
    • 用于交错火花塞在双插头火花点火发动机中点火的控制装置
    • US06814065B1
    • 2004-11-09
    • US10669914
    • 2003-09-24
    • Raymond O. Butler, Jr.
    • Raymond O. Butler, Jr.
    • F02P1508
    • F02P3/045
    • Staggered firing of first and second spark plugs in a dual-plug spark ignition engine is achieved by apparatus that fires the first spark plug based on an output signal produced by an engine control module and firing the second plug based on the output of a delay control circuit responsive to the output signal produced by the engine control module. The delay control circuit additionally detects engine speed based on the firing frequency of the first spark plug, and selects a delay time so that the firing of the second spark plug is delayed with respect to the firing of the first spark plug by a calibrated angle of engine rotation.
    • 双插头火花点火发动机中的第一火花塞和第二火花塞的交错点火是通过基于由发动机控制模块产生的输出信号和基于延迟控制的输出而点火第二火花塞的第一火花塞来实现的 电路响应于由发动机控制模块产生的输出信号。 延迟控制电路还基于第一火花塞的点火频率来另外检测发动机转速,并且选择延迟时间,使得第二火花塞的点火相对于第一火花塞的点火被延迟了校准角 发动机旋转。