公开(公告)号：EP1465211A3

公开(公告)日：2005-01-26

申请号：EP04075966.4

申请日：2004-03-29

Applicant: Delphi Technologies, Inc.

Inventor： Schroeder, Thaddeus ,  Chang, Shih-Chia ,  Rodriguez, Lorenzo Guadalupe

IPC: H01F1/00 ,  H01F41/02 ,  H01F41/14 ,  H01F41/16 ,  G01B7/30 ,  H01F7/02 ,  G01B7/04

CPC classification number: H05K1/165 ,  G01D5/145 ,  H01F41/0273 ,  H01F41/16 ,  H05K2201/083 ,  H05K2203/0568 ,  H05K2203/104 ,  Y10T428/12181 ,  Y10T428/21

Abstract: A process for forming magnetic target tracks for position and speed sensors. The tracks are formed from a paste comprising a magnetic powder material and a hardenable carrier. The tracks can be formed within trenches in a substrate or on the substrate surface.

公开(公告)号：EP1391727A3

公开(公告)日：2004-06-02

申请号：EP03077385.7

申请日：2003-07-30

Applicant: Delphi Technologies, Inc.

Inventor： Heremans, Joseph P. ,  Wang, Su-Chee Simon ,  Schroeder, Thaddeus ,  Nagy, Louis L.

IPC: G01N33/28 ,  G01N27/06

CPC classification number: G01N27/06 ,  G01N33/2888

Abstract: A method by which contaminant (soot) content in Diesel engine oil is determined using electrical conductivity measurements of the Diesel oil at a high frequency (150-160), or by which contaminant (soot and/or water and/or anitfreeze) content is determined using the ratio of electrical conductivity measurements of the Diesel oil at a high frequency to the electrical conductivity measurements of the Diesel oil at a low frequency (170-192). Both the conductivity ratio and the high frequency conductivity are essentially independent of the brand of oil. High frequency is defined to be above 2 MHz whereas low frequency is defined to be D.C. to about 1 kHz.

公开(公告)号：EP1391727A2

公开(公告)日：2004-02-25

申请号：EP03077385.7

申请日：2003-07-30

Applicant: Delphi Technologies, Inc.

Inventor： Heremans, Joseph P. ,  Wang, Su-Chee Simon ,  Schroeder, Thaddeus ,  Nagy, Louis L.

IPC: G01N33/28 ,  G01R27/02 ,  G01N27/02

CPC classification number: G01N27/06 ,  G01N33/2888

Abstract: A method by which contaminant (soot) content in Diesel engine oil is determined using electrical conductivity measurements of the Diesel oil at a high frequency (150-160), or by which contaminant (soot and/or water and/or anitfreeze) content is determined using the ratio of electrical conductivity measurements of the Diesel oil at a high frequency to the electrical conductivity measurements of the Diesel oil at a low frequency (170-192). Both the conductivity ratio and the high frequency conductivity are essentially independent of the brand of oil. High frequency is defined to be above 2 MHz whereas low frequency is defined to be D.C. to about 1 kHz.

Abstract translation: 柴油发动机油中污染物（烟尘）含量的测定方法是使用高频率（150-160）柴油机油的电导率测量或污染物（烟灰和/或水和/或防冻液）含量为 使用高频柴油机的电导率测量值与柴油机在低频率（170-192）下的电导率测量值之比确定。 电导率和高频电导率基本上都与油品牌无关。 高频定义为高于2MHz，而低频定义为直流至大约1kHz。

公开(公告)号：EP1388730A2

公开(公告)日：2004-02-11

申请号：EP03077375.8

申请日：2003-07-29

Applicant: Delphi Technologies, Inc.

Inventor： Schroeder, Thaddeus ,  Chang, Shih-Chia ,  Guerra, Jose A.

IPC: G01D5/14

CPC classification number: G01D5/14 ,  Y10T29/49069 ,  Y10T29/49075 ,  Y10T29/49156

Abstract: A process for forming ferromagnetic targets 8 for position and speed sensors 15. The targets 8 are formed on a conductor-clad substrate 23 by first applying a layer of photoresist material 26 and then patterning and etching the photoresist 26 to form trenches 42 defined by the shape and dimensions of the required targets 8. Ferromagnetic material is formed in the trenches 42 to complete the formation of the targets 8.

Abstract translation: 用于形成用于位置和速度传感器15的铁磁体目标8的工艺。靶8通过首先施加一层光致抗蚀剂材料26形成在导体覆盖的基板23上，然后对光致抗蚀剂26进行图案化和蚀刻以形成由 所需目标的形状和尺寸8.在沟槽42中形成铁磁材料以完成靶8的形成。

公开(公告)号：EP0987557A3

公开(公告)日：2003-12-03

申请号：EP99202814.2

申请日：1999-08-31

Applicant: Delphi Technologies, Inc.

Inventor： Schroeder, Thaddeus ,  Heremans, Joseph Pierre

IPC: G01R33/06

CPC classification number: G01D5/147 ,  G01R33/09

Abstract: An adaptive driver circuit (100) which uses a modified conventional current mirror circuit to provide a current source (116) employing an automatically adjustable current to compensate for decreased SMR device sensitivity at higher temperatures and large air gaps without the need for an active feedback circuit. The adaptive driver circuit (100) according to the present invention is a unique modification of a current mirror circuit in that an SMR device (104) is used as the reference resistor and a fixed resistor (118) in the mirrored circuit to generate an output voltage (120). A modification is also possible whereby two adaptive driver circuits are used in a differential mode.

公开(公告)号：EP1225425A3

公开(公告)日：2003-08-06

申请号：EP01204977.1

申请日：2001-12-18

Applicant: Delphi Technologies, Inc.

Inventor： Schroeder, Thaddeus

IPC: G01D5/16

CPC classification number: G01D5/147

Abstract: A single die MR sensor (10) having three MR elements (52, 54, 56), each being preferably composed of a number of serially connected MR segments (62) for use in linear position sensing schemes. The MR sensor is, generally, aligned in the direction of movement of a magnetic target. The middle MR element (54) is the actual position sensor. The two outer MR elements (52, 56) serve as reference sensors which sense the magnetic field at the limits of the position sensing range. The cooperating magnetic target assures that one of the two outer MR elements is always exposed to some maximum magnetic field, B MAX , corresponding to a position X MAX , and the other MR element is always exposed to some minimum magnetic field, B MIN , corresponding to a position X MIN , and wherein a portion of the middle MR element is exposed to B MAX and another portion of the middle MR element is exposed to B MIN , wherein the position, X, of the target is computed assuming uniformity of the middle MR element along its length.

公开(公告)号：EP1229336A1

公开(公告)日：2002-08-07

申请号：EP02075161.6

申请日：2002-01-16

Applicant: Delphi Technologies, Inc.

Inventor： Lequesne, Bruno Patrice Bernard ,  Schroeder, Thaddeus ,  Omekanda, Avoki M.

IPC: G01P3/488 ,  G01P13/04 ,  G01D5/16

CPC classification number: G01D5/147 ,  G01P3/488 ,  G01P13/04

Abstract: A target wheel sensor assembly (10,30,50,70,90,110,130,150) suitable for determining angular position, speed and direction of motion includes a target wheel (12,32,52,72,92,112,132,152), a magnet (18,38,58,78,98,118,138,158), and a sensing element (20,40,60,80,100,120,140,160) placed therebetween. The magnet (18,38,58,78,98,118,138,158) and the sensing element (20,40,60,80,100,120,140,160) are configured so that as the target wheel (12,32,52,72,92,112,132,152) rotates the sensing element (20,40,60,80,100,120,140,160) outputs an asymmetric signal. This asymmetric signal is used to determine the position of the target wheel (12,32,52,72,92,112,132,152) as it rotates and the direction of motion of the target wheel (12,32,52,72,92,112,132,152).

Abstract translation: 目标轮的传感器组件（10,30,50,70,90,110,130,150）适于确定性挖掘角位置，速度和方向运动的包括目标轮（12,32,52,72,92,112,132,152），磁体（18,38， 58,78,98,118,138,158）之间，并且放置在那里的感测元件（20,40,60,80,100,120,140,​​160）。 作为目标车轮象磁体（18,38,58,78,98,118,138,158）和感测元件（20,40,60,80,100,120,140,​​160）被配置（12,32,52,72,92,112,132,152）旋转感应元件（ 20,40,60,80,100,120,140,​​160）上非对称信号输出。 这种不对称信号被用于确定性矿目标轮（12,32,52,72,92,112,132,152），因为它的旋转和目标轮（12,32,52,72,92,112,132,152）的运动方向的位置。

公开(公告)号：EP1229302A2

公开(公告)日：2002-08-07

申请号：EP02075160.8

申请日：2002-01-16

Applicant: Delphi Technologies, Inc.

Inventor： Lequesne, Bruno Patrice Bernard ,  Schroeder, Thaddeus ,  Omekanda, Avoki M.

IPC: G01B7/30

CPC classification number: G01D5/2013 ,  G01P3/488

Abstract: A target wheel sensor assembly (10, 40, 70, 100, 130, 160, 190, 220, 250, 280, 310) includes a target wheel (12, 42, 72, 102, 132, 162, 192, 222, 252, 282, 312), a magnet (18, 48, 78, 108, 138, 168, 198, 228, 258, 288, 318), a magnetic piece (22, 52, 82, 112, 142, 172, 202, 232, 262, 292, 322), and a coil (20, 50, 80, 110, 140, 170, 200, 230, 260, 290, 320) to sense changes in the magnetic field caused by the rotation of the target wheel. The magnet (18, 48, 78, 108, 138, 168, 198, 228, 258, 288, 318), the magnetic piece (22, 52, 82, 112, 142, 172, 202, 232, 262, 292, 322) and the coil (20, 50, 80, 110, 140, 170, 200, 230, 260, 290, 320) are configured so that as the target wheel (12, 42, 72, 102, 132, 162, 192, 222, 252, 282, 312) rotates, the coil (20, 50, 80, 110, 140, 170, 200, 230, 260, 290, 320) outputs an asymmetric signal. This asymmetric signal is used to determine the position and direction of motion of the target wheel (12, 42, 72, 102, 132, 162, 192, 222, 252, 282, 312) as it rotates.

Abstract translation: 目标车轮传感器组件（10,40,70,100,130,160,190,220,250,280,310）包括目标车轮（12,42,72,102,132,162,192,222,252， ，282,312），磁体（18,48,78,108,138,168,198,228,258,288,318），磁性件（22,52,82,112,142,172， 以及线圈（20,50,80,110,140,​​170,200,230,260,290,320），用于感测由目标轮的旋转引起的磁场的变化 。 所述磁体（18,48,78,108,138,168,198,228,258,288,318），所述磁性件（22,52,82,112,142,172,202,232,262,292， 322）和所述线圈（20,50,80,110,140,​​170,200,230,260,290,320）被构造成使得当所述目标轮（12,42,72,102,132,162,192） ，222,252,282,312）旋转时，线圈（20,50,80,110,140,​​170,200,230,260,290,320）输出非对称信号。 该非对称信号用于确定目标轮（12,42,72,102,132,162,192,222,252,282,312）在其旋转时的运动的位置和方向。

公开(公告)号：EP1225453A2

公开(公告)日：2002-07-24

申请号：EP01204973.0

申请日：2001-12-18

Applicant: Delphi Technologies, Inc.

Inventor： Schroeder, Thaddeus ,  Partin, Dale Lee ,  Heremans, Joseph Pierre

IPC: G01R33/06

CPC classification number: G01R33/07

Abstract: A circuit and method of providing desired response from magnetic field sensors (12, 14) to a predetermined magnetic function. Typically, magnetic field sensors, such as magnetoresistive devices and Hall effect sensors, provide an output which is a characteristic function of the magnetic field density, and so they do not generate a linear response in relation to any predetermined magnetic function, such as is required within numerous position or angle resolving circuits. The present invention utilizes two or more magnetically sensitive devices (12, 14) to tailor the overall sensor output signal to any desired function of the magnetic field density. The devices are connected in such a way that they mutually effect each other's voltages or currents to render the final desired output characteristic.

Abstract translation: 提供从磁场传感器（12,14）到预定磁功能的期望响应的电路和方法。 通常，诸如磁阻器件和霍尔效应传感器的磁场传感器提供作为磁场密度的特征函数的输出，并且因此它们不会相对于任何预定的磁功能产生线性响应，例如所需的 在多个位置或角度分辨电路中。 本发明利用两个或更多个磁敏装置（12,14）来将整个传感器输出信号定制成磁场密度的任何期望的功能。 器件以这样的方式连接，使得它们相互影响彼此的电压或电流以呈现最终期望的输出特性。

公开(公告)号：EP1225425A2

公开(公告)日：2002-07-24

申请号：EP01204977.1

申请日：2001-12-18

Applicant: Delphi Technologies, Inc.

Inventor： Schroeder, Thaddeus

IPC: G01D5/16

CPC classification number: G01D5/147

Abstract: A single die MR sensor (10) having three MR elements (52, 54, 56), each being preferably composed of a number of serially connected MR segments (62) for use in linear position sensing schemes. The MR sensor is, generally, aligned in the direction of movement of a magnetic target. The middle MR element (54) is the actual position sensor. The two outer MR elements (52, 56) serve as reference sensors which sense the magnetic field at the limits of the position sensing range. The cooperating magnetic target assures that one of the two outer MR elements is always exposed to some maximum magnetic field, B MAX , corresponding to a position X MAX , and the other MR element is always exposed to some minimum magnetic field, B MIN , corresponding to a position X MIN , and wherein a portion of the middle MR element is exposed to B MAX and another portion of the middle MR element is exposed to B MIN , wherein the position, X, of the target is computed assuming uniformity of the middle MR element along its length.

Abstract translation: 具有三个MR元件（52,54,56）的单个管芯MR传感器（10），每个MR元件优选地由多个串联连接的MR段（62）组成，用于线性位置感测方案。 MR传感器通常沿着磁性目标的运动方向对齐。 中间的MR元件（54）是实际的位置传感器。 两个外部MR元件（52,56）用作参考传感器，其在位置感测范围的极限处感测磁场。 配合的磁性靶确保两个外部MR元件中的一个总是暴露于对应于位置XMAX的某个最大磁场BMAX，并且另一个MR元件总是暴露于对应于位置XMAX的某个最小磁场BMIN XMIN，并且其中中间MR元件的一部分暴露于BMAX并且中间MR元件的另一部分暴露于BMIN，其中假定中间MR元件沿其长度的均匀性来计算目标的位置X.