Renesas Electronics America Inc.

Integrated Device Technology, Inc.

Gentjan Qama

Josef Janisch

Andreas Buchinger

Harald Hartl

Alberto Troia

Rudolf Pichler

Bence Gombor

Jürgen Kernhof

Marco Nicolò

Thomas Oswald

Peter Kiesel

L'ubomir Fenic

Jürgen Peter Kernhof

Ruben Specogna

Angel Karachomakov

Syed Khurram Zaka Bukhari

Mauro Passarotto

Andreas Leo Buchinger

A method for calibrating a linearization function for correcting an output of a position sensor providing a continuous output position signal is described. The method adds a new linearization point to the linearization function by detecting the maximum error at the output of the position sensor and applying the new linearization function to the output of the position sensor and repeat the adding new linearization points until all available linearization points have been defined.

Method for calibrating linearization function for correcting output of position sensor

A method for calibrating a linearization function for correcting the output of a position sensor providing a continuous output position signal, wherein the method optimizes the linearization function by defining optimal positions of the linearization points of the linearization function.

Method for calibration linearization function for correcting output of position sensor

An inductive position sensor for detecting a linear or angular movement of a conductive target, including: a transmitter coil; a first receiver coil and a second receiver coil, where the first receiver coil and the second receiver coil have a linear or angular shape and define the detection range of the inductive linear or arc position sensor; a first conductive target and a second conductive target; the first conductive target and the second conductive target each have a linear or angular shape extension of half the detection range of the inductive position sensor and are spaced from each other by half the detection range of the inductive position sensor.

Inductive position sensor for detecting a linear or angular movement of a conductive target

A position sensor, wherein the position sensor detects the movement of a target relative to a sine receiver coil and a cosine receiver coil and generates a corresponding sine signal and a corresponding cosine signal, and a method for error detection of a position sensor.

Method for error detection of a position sensor and position sensor

A sensor system and an update server perform a method for updating the sensor system. The update server performs steps of retrieving a pre-shared sensor key associated with the sensor system, calculating a server signature based on update data and the retrieved sensor key, and transmitting the update data and the calculated server signature to the sensor system. On the other hand, the sensor system performs steps of receiving the update data and the calculated server signature, retrieving the pre-shared sensor key stored in a register, calculating a sensor system signature based on the update data and the pre-shared sensor key, comparing the sensor system signature with the server signature and processing the update data if the sensor system signature and the server signature are identical.

Method for updating a sensor system in automotive applications

A method for detecting a phase shift in an output signal of an inductive position sensor by calculating the phase spectrum of the position signal based on a Fast Fourier Transformation of the position signal and comparing the calculated phase spectrums over time to detect changes in the phase spectrums.

Method for detecting a phase shift in an output of an inductive position sensor

A position sensor according to some embodiments includes a first position sensor board having first sensor coils and a first transmit coil; a second position sensor board having second sensor coils stacked with, and separated from by a distance Z, the first position sensor; and at least one target positioned relative to the stacked first position sensor and second position sensor. A redundant position sensor according to some embodiments includes a plurality of stacked sensor boards, each of the plurality of sensor boards including sensor coils, wherein one of the plurality of stacked sensor boards includes an active transmit coil; and a target positioned over the plurality of stacked sensor boards.

Fully redundant position sensor

In some embodiments, a position sensor calibration and linearization system for position sensors is provided. A method of calibrating and linearization of a position sensor includes reading Spatial Angle data from a position sensor at a set of positions of a target swept over receive coils in the position sensor; calculating calibration parameters from the Spatial Angle data; determining an initial position values from the Spatial Angle data and the calibration parameters; determining linearization parameters from the initial position values; and writing the calibration parameters and the linearization parameters into the position sensor.

Calibration and linearization of position sensor

A position sensor is presented. Some embodiments of a position sensor according to some embodiments includes a position sensor that includes a transmission coil; receive coils, the receive coils including at least one polarity change; a target configured to transit across the receive coils; and a controller configured to drive the transmission coil, receive signals from the receive coils, and provide a position response indicative of the target position over the receive coils, wherein the position response exhibits a first linear region of a first slope and a second linear region of a second slope.

Position sensor with varying output slope

An accurate position sensor is presented. The sensor operates over 360-degree motion angular motion and includes a coil structure formed on a substrate and a target mounted to be angularly moved over the coil structure, the target being formed of a conducting material in a shape of a spiral of Archimedes. The coil structure includes coils with an arc sufficient to operate over a 360 degree motion of the target, for example between 120 degrees and 360 degrees. Some embodiments include coils with a 180 degree arc. A method of operating the position sensor includes rotating a target formed of a conducting material in a shape of a spiral of Archimedes over a coil structure and providing a linearized and calibrated response indicating the angular position of the target relative to the coil structure.

360 degree position sensor

In some embodiments, a coil design system is provided. In particular, a method of providing an optimized position locating sensor coil design in presented. The method includes receiving a coil design; simulating position determination with the coil design to form a simulated performance; comparing the simulated response with the specification to provide a comparison; and modifying the coil design based on a comparison between the simulated performance and a performance specification to arrive at an updated coil design.

Sensor Coil optimization

In some embodiments, optimizing a coil design is provided. In particular, a method of providing an optimized position locating sensor coil design includes receiving a coil design, the coil design including geometric positions of a transmit coil and geometric positions of receive coils; linearizing one or more of the receive coils; and offset compensating the one or more of the receive coils. The linearization determines a geometric correction array for adjusting the geometric position of one of the receive coils. The offset correction includes determining a geometric shift to shift the geometric position of the one of the receive coils.

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Munich, Germany

Gentjan Qama