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    APARATUSES AND METHODS FOR COMPARING REDUNDANT SIGNALS IN FUNCTIONAL SAFE SYSTEMS
    1.
    发明申请
    APARATUSES AND METHODS FOR COMPARING REDUNDANT SIGNALS IN FUNCTIONAL SAFE SYSTEMS 有权

    公开(公告)号：US20220178725A1

    公开(公告)日：2022-06-09

    申请号：US17542884

    申请日：2021-12-06

    Applicant: Infineon Technologies AG

    Inventor： Benjamin KOLLMITZER ,  Wolfgang GRANIG ,  Christof MICHENTHALER ,  Mario MOTZ ,  Peter Slama

    IPC: G01D18/00 ,  G01P3/44 ,  G01D5/14 ,  G01D5/16

    Abstract: Methods and apparatuses for comparing redundant signals in functional safe systems are provided, including methods for mitigating differing signal path delays and for signal weighting of the redundant signals are proposed. An Apparatus includes a first signal path for a first measurement signal of a physical quantity, the first signal path having a first signal propagation delay; a second signal path for a second measurement signal of the physical quantity, the second signal path having a second signal propagation delay different from the first signal propagation delay; a delay compensation circuit configured to compensate for a difference between the first and second signal propagation delays to generate delay-compensated first and second measurement signals; and comparison circuitry configured to compare the delay-compensated first and second measurement signals.

    Shaft-integrated angle sensing device
    5.
    发明授权
    Shaft-integrated angle sensing device 有权

    公开(公告)号：US11549830B2

    公开(公告)日：2023-01-10

    申请号：US15930021

    申请日：2020-05-12

    Applicant: Infineon Technologies AG

    Inventor： Udo Ausserlechner ,  Leo Aichriedler ,  Peter Slama

    IPC: G01D11/24 ,  G01D5/14 ,  G01D5/12

    Abstract: A sensor arrangement, including: a rotatable driving shaft extending along a rotation axis and comprising a bore extending from a first end face of the shaft along the rotation axis; a substantially ring-shaped magnet arranged within the bore and coupled to the driving shaft, the magnet configured to generate a magnetic field within the bore; and a sensor configured to sense a rotation of the magnetic field in response to rotation of the driving shaft.

    MULTILAYERED SAFETY MECHANISM FOR A THREE-PHASE OFF-AXIS ANGLE SENSOR
    6.
    发明申请
    MULTILAYERED SAFETY MECHANISM FOR A THREE-PHASE OFF-AXIS ANGLE SENSOR 审中-公开

    公开(公告)号：US20200284615A1

    公开(公告)日：2020-09-10

    申请号：US16293485

    申请日：2019-03-05

    Applicant: Infineon Technologies AG

    Inventor： Dirk Hammerschmidt ,  Thomas Hafner ,  Peter Slama

    IPC: G01D5/14 ,  G01B7/30

    Abstract: A off-axis angle sensor may receive a set of output signals including a first output signal, a second output signal, and a third output signal. The off-axis angle sensor may determine, based on the set of output signals, a set of delta signals including a first delta signal, a second delta signal, and a third delta signal. The off-axis angle sensor may identify a set of functional safety checks, from a plurality of functional safety checks configured on the off-axis angle sensor, for selective performance in association with determining functional safety of the off-axis angle sensor. Each of the plurality of functional safety checks may be performed independently of each of the other functional safety checks. The off-axis angle sensor may perform one or more functional safety checks based at least in part on at least one of: the set of output signals or the set of delta signals.

    Rotation angle sensor system and method
    7.
    发明授权
    Rotation angle sensor system and method 有权

    公开(公告)号：US09739640B2

    公开(公告)日：2017-08-22

    申请号：US14996735

    申请日：2016-01-15

    Applicant: Infineon Technologies AG

    Inventor： Leo Aichriedler ,  Peter Slama

    IPC: G01B7/14 ,  G01B7/30 ,  G01R33/06 ,  H01L43/06 ,  G01D5/165 ,  G01D5/14 ,  G01R15/20 ,  G01R21/08 ,  G01R33/07

    CPC classification number: G01D5/165 ,  G01D5/142 ,  G01D5/145 ,  G01R15/20 ,  G01R15/202 ,  G01R21/08 ,  G01R33/06 ,  G01R33/07

    Abstract: Rotational angle sensor systems and methods are provided for detecting an angular position of a movable structure. A system may include a movable structure, a rotating member, a magnet and an angular sensor. The movable structure may be configured to rotate about an axis of rotation between a first rotational position and a second rotational position. A rotating member may be coupled to the movable structure and configured to rotate about the axis of rotation based on movement of the movable structure such that rotational positions of the rotating member and the movable structure correspond to one another. A magnet may have a magnetic field pattern with a magnetic field orientation and an angle sensor may be configured to detect the magnetic field pattern and generate one or more signals, based on the magnetic field orientation, corresponding to the rotational position of the movable structure.

    CAM SHAFT ROTATION SENSOR
    8.
    发明申请
    CAM SHAFT ROTATION SENSOR 有权
    CAM轴转动传感器

    公开(公告)号：US20150268065A1

    公开(公告)日：2015-09-24

    申请号：US14221570

    申请日：2014-03-21

    Applicant: Infineon Technologies AG

    Inventor： Peter Slama ,  Dirk Hammerschmidt ,  Tobias Werth

    IPC: G01D5/244 ,  G01D5/14

    CPC classification number: G01D5/244 ,  G01D5/145 ,  G01D5/24452 ,  G01D5/246 ,  G01D5/249

    Abstract: A sensor device is provided with a magnetic field sensitive element to be positioned in a magnetic field of a magnet. The magnet is positioned on an end face of a cam shaft of an engine. The magnetic field sensitive element is configured to sense an orientation angle of the magnetic field in the range between 0° and 360°. Further, the sensor device is provided with a memory. The memory stores a mapping of pulse edges to orientation angles. Further, the sensor device is provided with electronic circuitry. The electronic circuitry is configured to generate, depending on the sensed orientation angle and the stored mapping of pulse edges to orientation angles, a signal comprising a pattern of pulses with rising and falling pulse edges which are mapped to predefined orientation angles as sensed by the magnetic field sensitive element.

    Abstract translation: 传感器装置设置有磁场敏感元件以定位在磁体的磁场中。 磁体位于发动机的凸轮轴的端面上。 磁场敏感元件被配置为感测在0°和360°之间的范围内的磁场的取向角。 此外，传感器装置设置有存储器。 存储器将脉冲边缘映射到定向角。 此外，传感器装置设有电子电路。 电子电路被配置为根据感测到的取向角度和所存储的脉冲边缘与定向角度的映射产生包括具有上升和下降脉冲边缘的脉冲图案的信号，其被映射到由磁性检测到的预定义取向角度 场敏感元件。

    Stray field robust out of shaft angle sensor and measurement system
    9.
    发明授权
    Stray field robust out of shaft angle sensor and measurement system 有权

    公开(公告)号：US11371824B2

    公开(公告)日：2022-06-28

    申请号：US16690934

    申请日：2019-11-21

    Applicant: Infineon Technologies AG

    Inventor： Gernot Binder ,  Benjamin Kollmitzer ,  Peter Slama

    IPC: G01B7/30

    Abstract: The described techniques address the issues associated with conventional OoS sensor systems by mounting a magnetized ring onto a rotatable shaft for which an angular position is to be measured. Specific sensor configurations are disclosed regarding each magnetic sensor's position with respect to one another and each magnetic sensor's position with respect to the rotatable shaft. The described configurations provide a stray-field robust solution due to the specific magnetic sensor configurations such that, when stray fields are present, pairs of magnetic sensors are exposed to essentially the same stray field components, which thus cancel one another. Thus, the angle of the rotatable shaft as a function of the measured strength of the magnetic field components at any time instant can be calculated even in the present of stray magnetic fields.

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