公开(公告)号：US20230221149A1

公开(公告)日：2023-07-13

申请号：US18075718

申请日：2022-12-06

Applicant: Renesas Electronics America Inc.

Inventor： Josef Janisch ,  Rudolf Pichler ,  Juergen Kernhof ,  Svilen Kastev

IPC: G01D5/20

CPC classification number: G01D5/2066

Abstract: An inductive position sensor and method for detecting a movement of a conductive target, having: at least a first and a second transmitter coil having the same shape and which are phase-shifted to each other, at least one oscillator for generating a first and a second transmitter signal having the same shape and which are phase shifted to each other and are applied to the first transmitter coil and second transmitter coil respectively, at least one receiver coil, and a processing unit for determining a phase-shift between the first or second transmitter signal and a receiver signal received at the receiver coil; the determined phase-shift corresponding to the position of the conductive target above the first and second transmitter coils.

公开(公告)号：US12176832B2

公开(公告)日：2024-12-24

申请号：US18155288

申请日：2023-01-17

Applicant: Renesas Electronics America Inc.

Inventor： Josef Janisch

IPC: H03M1/12 ,  H02P21/18 ,  H02P29/024

Abstract: A method and position sensor system for detecting an error of a position sensor system are provided. The method and position sensor system implementing the steps of: determining the period length of three previous signal periods of the position signal, comparing the period lengths of the three previous signal periods of the position signal to detect a constant velocity position signal, a constant accelerating or decelerating position signal or position signal with a constant jerk, predicting the period length of the next signal period of the position signal, transferring the predicted period length of the next signal period to a predicted position signal for the next signal period, and comparing the predicted position signal with the actual position signal to detect errors in the position signal of the next signal period.

公开(公告)号：US11725964B2

公开(公告)日：2023-08-15

申请号：US16794005

申请日：2020-02-18

Applicant: Renesas Electronics America Inc.

Inventor： Josef Janisch ,  Marcin Augustyniak ,  Angel Karachomakov

IPC: G01D5/244 ,  G06F11/14 ,  H03M1/12

CPC classification number: G01D5/24476 ,  G06F11/14 ,  H03M1/1205

Abstract: A rotary movement position sensor is presented that includes a first sensor output, a second sensor output, a first signal processing unit, a second signal processing unit, a first system output providing the output of the first signal processing unit or of the second signal processing unit, and a second system output providing the output of the second signal processing unit or of the first signal processing unit. A swapping unit that swaps the first signal processing unit between the first sensor output and first system output to the second sensor output and second system output and simultaneously swaps the second signal processing unit from the second sensor output and second system output to the first sensor output and first system output and vice versa. A method for detecting errors in a position sensor system is also presented.

公开(公告)号：US20230231502A1

公开(公告)日：2023-07-20

申请号：US18155288

申请日：2023-01-17

Applicant: Renesas Electronics America Inc.

Inventor： Josef Janisch

IPC: H02P21/18 ,  H02P29/024

CPC classification number: H02P21/18 ,  H02P29/024 ,  H02P2203/03

Abstract: A method and position sensor system for detecting an error of a position sensor system are provided. The method and position sensor system implementing the steps of: determining the period length of three previous signal periods of the position signal, comparing the period lengths of the three previous signal periods of the position signal to detect a constant velocity position signal, a constant accelerating or decelerating position signal or position signal with a constant jerk, predicting the period length of the next signal period of the position signal, transferring the predicted period length of the next signal period to a predicted position signal for the next signal period, and comparing the predicted position signal with the actual position signal to detect errors in the position signal of the next signal period.