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81. 发明授权

US07021127B2 Self-powered wireless sensor assembly for sensing angular position of the engine crankshaft in a vehicle 失效
标题翻译：用于感测车辆中发动机曲轴的角位置的自供电无线传感器组件
公开(公告)号：US07021127B2
公开(公告)日：2006-04-04
申请号：US10755776
申请日：2004-01-12
申请人： Thaddeus Schroeder , Francis E. Szczublewski , Laci J. Jalics
发明人： Thaddeus Schroeder , Francis E. Szczublewski , Laci J. Jalics
IPC分类号： G01M15/00
CPC分类号： G01D5/145
摘要： A self-powered, wireless sensor assembly is provided for sensing crankshaft position of an engine comprising a rotatable flywheel having a ring gear. The sensor assembly includes an electromagnetic sensor responsive to structural features on the ring gear when the ring gear rotates. A power supply is coupled to generate a direct current in response to the output signal from the electromagnetic sensor. A transceiver is coupled to one of the following sensors: a magnetostatic sensor energized by the power supply and responsive to the structural features on the ring gear to generate an output signal when the ring gear rotates, and the electromagnetic sensor. The transceiver is configured to wirelessly transmit the output signal from that one sensor, wherein the output signal from that one sensor comprises information indicative of the instantaneous speed of said engine.
摘要翻译：提供自动供电的无线传感器组件，用于感测包括具有环形齿轮的可旋转飞轮的发动机的曲轴位置。传感器组件包括响应于环形齿轮旋转时的环形齿轮上的结构特征的电磁传感器。电源被耦合以响应于来自电磁传感器的输出信号而产生直流电。收发器耦合到以下传感器之一：静电传感器，其由电源供电并响应于环形齿轮上的结构特征以在齿圈旋转时产生输出信号，并且电磁传感器。收发器被配置为从该一个传感器无线地传输输出信号，其中来自该一个传感器的输出信号包括指示所述发动机的瞬时速度的信息。

82. 发明申请

US20050007103A1 Sensor assembly for sensing direction of rotation and/or position of an object 审中-公开
标题翻译：用于感测旋转方向和/或物体位置的传感器组件
公开(公告)号：US20050007103A1
公开(公告)日：2005-01-13
申请号：US10615112
申请日：2003-07-08
申请人： Thaddeus Schroeder , Bruno Lequesne
发明人： Thaddeus Schroeder , Bruno Lequesne
IPC分类号： G01B7/30 , G01D5/244 , G01P3/487
CPC分类号： G01P3/487 , G01D5/244
摘要： A sensor assembly and method for sensing direction of rotation and/or position of an object are provided. The sensor assembly includes a target wheel. A pair of sensing elements may be configured to generate respective signals as the wheel rotates in response to structure on the target wheel. A first circuit may be coupled to receive a signal from at least one of the sensing elements for detecting direction of rotation of the target wheel. A second circuit may be coupled to receive each signal from the sensing elements for detecting position of the target wheel.
摘要翻译：提供了用于感测物体的旋转方向和/或位置的传感器组件和方法。传感器组件包括目标轮。一对感测元件可以被配置为响应于目标轮上的结构而随着车轮旋转而产生相应的信号。第一电路可以被耦合以从用于检测目标轮的旋转方向的至少一个感测元件接收信号。第二电路可以被耦合以接收来自感测元件的每个信号，以检测目标轮的位置。

83. 发明授权

US06720763B1 Compact rotary magnetic position sensor having a sinusoidally varying output 失效
标题翻译：紧凑型旋转磁位置传感器具有正弦变化的输出
公开(公告)号：US06720763B1
公开(公告)日：2004-04-13
申请号：US09655035
申请日：2000-09-05
申请人： Thomas Wolfgang Nehl , Thaddeus Schroeder , Nady Boules , Rassem Ragheb Henry
发明人： Thomas Wolfgang Nehl , Thaddeus Schroeder , Nady Boules , Rassem Ragheb Henry
IPC分类号： G01B730
CPC分类号： G01D5/145
摘要： A rotary position sensor featuring a magnetized rotor which produces a magnetic flux density that varies sinusoidally with respect to the angular position of the rotor, which may be either a selectively magnetized ring or disk. The magnetic flux density produced by the rotor is measured by a sensor that responds in a linear fashion to the magnitude of the radial component of the magnetic flux density. Typical embodiments would use magnetic flux density sensors, as for example either linear Hall sensors or magnetoresistive type sensors. The measured magnetic flux densities are then used as in a traditional resolver to compute position or used to directly generate control signals to operate, for example, a motor.
摘要翻译：具有磁化转子的旋转位置传感器，其产生相对于转子的角位置正弦变化的磁通密度，其可以是选择性磁化的环或盘。由转子产生的磁通密度由传感器测量，该传感器以线性方式响应于磁通密度的径向分量的大小。典型的实施例将使用磁通密度传感器，例如线性霍尔传感器或磁阻型传感器。然后，如传统的分解器那样使用测量的磁通密度来计算位置或用于直接产生控制信号以操作例如电动机。

84. 发明授权

US06614223B2 Analog angle encoder having a single piece magnet assembly surrounding an air gap 失效
标题翻译：模拟角度编码器具有围绕气隙的单片磁体组件
公开(公告)号：US06614223B2
公开(公告)日：2003-09-02
申请号：US09929149
申请日：2001-08-14
申请人： Thaddeus Schroeder , Bruno Patrice Bernard Lequesne , Avoki M. Omekanda , Steven Douglas Thomson
发明人： Thaddeus Schroeder , Bruno Patrice Bernard Lequesne , Avoki M. Omekanda , Steven Douglas Thomson
IPC分类号： G01B230
CPC分类号： G01D5/145
摘要： An analog angle encoder having a simply constructed magnet assembly, wherein rotation of a magnetic field relative to a magnetosensitive device provides a varying output of the magnetosensitive device that varies sinusoidally with the angle of relative rotation. The simply constructed magnet assembly is of a closed-path geometry composed of a single piece of magnetic material wherein only a first portion thereof is magnetized for providing the aforesaid magnetic field for the sensor. The remaining portion of the magnet material (the second portion) remains unmagnetized and does not substantially influence the magnetic field produced by the first portion any more than, for example, air would cause.
摘要翻译：具有简单构造的磁体组件的模拟角度编码器，其中磁场相对于磁敏装置的旋转提供了与相对旋转角正弦变化的磁敏装置的变化的输出。简单构造的磁体组件是由单个磁性材料组成的闭路几何形状，其中只有其第一部分被磁化以提供用于传感器的上述磁场。磁体材料的剩余部分（第二部分）保持不磁化，并且基本上不影响第一部分产生的比例如空气将产生的磁场。

85. 发明授权

US06291989B1 Differential magnetic position sensor with adaptive matching for detecting angular position of a toothed target wheel 失效
标题翻译：具有自适应匹配的差分磁位置传感器，用于检测齿轮目标轮的角位置
公开(公告)号：US06291989B1
公开(公告)日：2001-09-18
申请号：US09372949
申请日：1999-08-12
申请人： Thaddeus Schroeder
发明人： Thaddeus Schroeder
IPC分类号： G01B730
CPC分类号： G01D5/147 , G01P3/4802 , G01P3/487
摘要： A method and apparatus wherein a single dual element galvanomagnetic sensor, herein exemplified by a single dual element magnetoresistive sensor (16′), is utilized to sense crankshaft position and rotational speed from the passage of single tooth edges (12′) of a target wheel (10′) by continuous adaptive matching of both MR output signals (VMR1′, VMR2′) during sensor operation. Over a slot (28′) or tooth (26′), both MR output signals should be equal, and if not, they are matched by adjusting the current of one of the current sources (30′, 32′) driving the MRs, performed over a slot or a tooth. Due to higher magnetic sensitivity at smaller air gaps, matching by current adjustment over a tooth is preferred. In a preferred embodiment of the present invention, one MR is driven by a constant current source (30′) while the other MR is driven by a voltage controlled current source (32′). The output voltages of the MRs approximate the tooth pattern of the target wheel; they are high over a tooth and low over a slot. Hence, the signals over the teeth can be simply acquired by means of a peak detector (36a, 36b), one for each MR. The signals from the peak detectors are subtracted from each other in a comparator (36c), and then used as a control voltage (VC) for a voltage controlled current source changing its preset nominal current to a value that minimizes the mismatch of MR signals. If matching of MR signals over slots would be desired, valley detectors would be substituted for the peak detectors.
摘要翻译：一种方法和装置，其中使用单个双元件磁阻传感器（16'）示例的单个双元件电磁感应器用于从目标轮的单个齿缘（12'）的通道感测曲轴位置和转速（10'）通过在传感器操作期间两个MR输出信号（VMR1'，VMR2'）的连续自适应匹配。在一个槽（28'）或齿（26'）上，两个MR输出信号应该相等，如果不是，它们通过调节驱动MR的电流源（30'，32'）之一的电流来匹配，在缝隙或牙齿上进行。由于在较小的气隙处具有较高的磁敏感度，因此优选通过牙齿上的电流调整进行匹配。在本发明的优选实施例中，一个MR由恒定电流源（30'）驱动，而另一个MR由电压控制电流源（32'）驱动。 MR的输出电压近似于目标轮的齿形; 它们在牙齿上是高的，在一个狭槽上是低的。因此，可以通过峰值检测器（36a，36b）简单地获取齿上的信号，每个MR一个。来自峰值检测器的信号在比较器（36c）中相互减去，然后用作用于将其预设的标称电流改变为最小化MR信号失配的值的电压控制电流源的控制电压（VC）。如果需要在时隙上匹配MR信号，则谷检测器将代替峰值检测器。

86. 发明授权

US5668471A Rotational sensor with robust axial alignment tolerance 失效
标题翻译：旋转传感器具有鲁棒的轴向对准公差
公开(公告)号：US5668471A
公开(公告)日：1997-09-16
申请号：US578305
申请日：1995-12-26
申请人： Bruno Patrice Bernard Lequesne , Thaddeus Schroeder
发明人： Bruno Patrice Bernard Lequesne , Thaddeus Schroeder
IPC分类号： G01D5/14 , G01D5/16 , G01B7/30 , G01B7/14 , G01D5/12
CPC分类号： G01D5/147
摘要： A rotation sensor for high accuracy angle applications such as internal combustion engine crankshaft position sensing includes a pair of complementary target wheels and a dual-element magnetoresistive sensor. The target wheels are spaced from one another along the rotational axis by a predetermined distance. The individual magnetoresistive elements are similarly spaced one from the other and are influence by the ferrite effects of the target wheels. The spacing of the target wheels and magnetoresistive elements are selected in relation to one another and in relation to the mount of axial play in the crankshaft such that changes in ferrite effects of the target wheels upon the elements due to axial displacements of the crankshaft have minimal effect on the accuracy of the sensing apparatus.
摘要翻译：用于高精度角度应用的旋转传感器，例如内燃机曲轴位置检测包括一对互补目标轮和双元件磁阻传感器。目标轮沿着旋转轴线彼此间隔预定距离。单个磁阻元件彼此相似地间隔开并且受到目标轮的铁氧体效应的影响。目标轮和磁阻元件的间距相对于彼此并且相对于曲轴中的轴向游隙的安装来选择，使得由于曲轴的轴向位移而使目标轮对元件的铁素体效应的变化最小化影响感测装置的精度。

87. 发明授权

US5598814A Method and apparatus for electrically driving engine valves 失效
标题翻译：电动发动机阀门的方法和装置
公开(公告)号：US5598814A
公开(公告)日：1997-02-04
申请号：US357794
申请日：1994-12-15
申请人： Thaddeus Schroeder , Rassem R. Henry , Bruno P. B. Lequesne , Balarama V. Murty
发明人： Thaddeus Schroeder , Rassem R. Henry , Bruno P. B. Lequesne , Balarama V. Murty
IPC分类号： F01L1/30 , F01L9/04 , F01L13/00
CPC分类号： F01L9/04 , F01L1/30 , F01L13/0005 , F01L2009/0411
摘要： A motor control includes position transducers for generating crankshaft position and motor position pulse trains. The pulse trains are compared to detect any phase difference between engine and motor. Tables are generated to define the desired phase difference needed for particular valve characteristics. The phase difference represents the instantaneous deviation from the basic profile. One of the tables is selected according to the engine conditions and the motor is driven to achieve the desired phase differences.
摘要翻译：马达控制器包括用于产生曲轴位置和马达位置脉冲列的位置传感器。将脉冲串进行比较，以检测发动机和电机之间的任何相位差。生成表以定义特定阀特性所需的期望相位差。相位差表示与基本曲线的瞬时偏差。根据发动机条件选择其中一个表，并且驱动电动机以实现期望的相位差。

88. 发明授权

US5513972A Surface generating device suitable for generating a die, mold or fixture surface 失效
标题翻译：适用于生产模具，模具或夹具表面的表面发生装置
公开(公告)号：US5513972A
公开(公告)日：1996-05-07
申请号：US9703
申请日：1993-01-27
申请人： Thaddeus Schroeder , Robin Stevenson
发明人： Thaddeus Schroeder , Robin Stevenson
IPC分类号： B21D37/02 , B28B7/02 , B29C33/02 , B29C33/04 , B29C33/30
CPC分类号： B21D37/02 , B28B7/02 , B28B7/025 , B29C33/04 , B29C33/302 , B29C33/02
摘要： A device is provided which is capable of generating a surface that at least partially conforms to the contour of an article. The surface is defined by the ends of a number of threaded members which are supported within a suitable support structure. The threaded members are aligned so as to be substantially parallel to and threadably engaged with each other. As a result, rotation of an individual threaded member will cause that threaded member to be longitudinally moved relative to its adjacent threaded members and the support structure, without displacing an adjacent threaded member. The surface can be readily configured manually or automatically to serve as a die or mold cavity when the entire surface has been generated to conform to the entire contour of the article. Alternatively, the surface can be generated so as to provide a suitable fixture surface for supporting and securing a workpiece during a machining or welding operation. Due to its method of generation, the surface can be quickly and repeatedly reconfigured to conform to an article or workpiece having a completely different contour.
摘要翻译：提供了能够产生至少部分地符合制品轮廓的表面的装置。表面由多个螺纹构件的端部限定，这些螺纹构件被支撑在合适的支撑结构内。螺纹构件被对准以便基本上平行于并且彼此螺纹接合。结果，单个螺纹构件的旋转将导致螺纹构件相对于其相邻的螺纹构件和支撑结构纵向移动，而不会使相邻的螺纹构件移位。当整个表面已被产生以符合制品的整个轮廓时，表面可以手动或自动地被轻易地配置成用作模具或模腔。或者，可以产生表面，以便在加工或焊接操作期间提供用于支撑和固定工件的合适的固定表面。由于其产生的方法，可以快速且重复地重新配置表面以符合具有完全不同轮廓的物品或工件。

89. 发明授权

US5494007A Method and apparatus for electrically driving engine valves 失效
标题翻译：电动发动机阀门的方法和装置
公开(公告)号：US5494007A
公开(公告)日：1996-02-27
申请号：US358212
申请日：1994-12-15
申请人： Thaddeus Schroeder , Rassem R. Henry , Bruno P. B. Lequesne
发明人： Thaddeus Schroeder , Rassem R. Henry , Bruno P. B. Lequesne
IPC分类号： F01L1/30 , F01L9/04 , F01L13/00
CPC分类号： F01L9/04 , F01L1/30 , F01L13/0005 , F01L2009/0411
摘要： A cam mechanism is employed to convert motor rotation to reciprocating valve motion. Motor speed is reduced at the valve opening and closing times to reduce stress on the cam mechanism.
摘要翻译：采用凸轮机构将电机转动转换成往复阀运动。在阀门打开和关闭时间，电机速度减小，以减少凸轮机构的应力。

90. 发明授权

US5327856A Method and apparatus for electrically driving engine valves 失效
标题翻译：电动发动机阀门的方法和装置
公开(公告)号：US5327856A
公开(公告)日：1994-07-12
申请号：US994829
申请日：1992-12-22
申请人： Thaddeus Schroeder , Rassem R. Henry , Bruno P. B. Lequesne , Balarama V. Murty
发明人： Thaddeus Schroeder , Rassem R. Henry , Bruno P. B. Lequesne , Balarama V. Murty
IPC分类号： F01L1/30 , F01L9/04 , F01L13/00
CPC分类号： F01L9/04 , F01L1/30 , F01L13/0005 , F01L2009/0411
摘要： Each valve of an internal combustion engine is driven by a separate rotary electric motor. A cam mechanism for the valves comprises a cylindrical cam in line with the motor axis and the valve stem, the mechanism having inner and outer cylinders, one cylinder rotating with the motor and carrying a cam and the other containing a cam follower and reciprocating with the valve.
摘要翻译：内燃机的每个阀由单独的旋转电动机驱动。用于阀的凸轮机构包括与电动机轴线和阀杆一致的圆柱形凸轮，该机构具有内部和外部气缸，一个气缸与电动机一起旋转并且承载凸轮，另一个气缸容纳凸轮从动件并与阀。

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