公开(公告)号：US11117612B2

公开(公告)日：2021-09-14

申请号：US15916824

申请日：2018-03-09

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Prerit Pramod ,  Michael Eickholt ,  Krishna MPK Namburi ,  Matthew A. Tompkins

IPC: B62D5/04 ,  B62D6/08 ,  B62D6/02 ,  B62D6/00

Abstract: Technical solutions are described for attenuating dither noise in a steering system. An example method includes computing multiple filter parameters, each filter parameter based on a corresponding signal in the steering system. The method further includes determining at least one final filter parameter from the plurality of filter parameters by arbitrating the plurality of filter parameters. The method further includes dynamically configuring a filter using the at least one final filter parameter. Further, the method includes filtering a motor torque command using the filter, a filtered motor torque command being applied to a motor to generate a corresponding amount of torque.

公开(公告)号：US20190276073A1

公开(公告)日：2019-09-12

申请号：US15916824

申请日：2018-03-09

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Prerit Pramod ,  Michael Eickholt ,  Krishna MPK Namburi ,  Matthew A. Tompkins

IPC: B62D5/04 ,  B62D6/00 ,  B62D6/02 ,  B62D6/08

Abstract: Technical solutions are described for attenuating dither noise in a steering system. An example method includes computing multiple filter parameters, each filter parameter based on a corresponding signal in the steering system. The method further includes determining at least one final filter parameter from the plurality of filter parameters by arbitrating the plurality of filter parameters. The method further includes dynamically configuring a filter using the at least one final filter parameter. Further, the method includes filtering a motor torque command using the filter, a filtered motor torque command being applied to a motor to generate a corresponding amount of torque.

公开(公告)号：US11511795B2

公开(公告)日：2022-11-29

申请号：US16157880

申请日：2018-10-11

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Michael Eickholt ,  Prerit Pramod

IPC: B62D5/04 ,  H02P6/10

Abstract: Technical solutions are described for attenuating dither noise in a steering system. An example method includes computing a torque command based on an input torque, and generating a current command corresponding to the torque command. Further, the method includes determining an adjustment parameter based on a plurality of steering system signals. Further, the method includes reducing dither noise of the steering system by dynamically modifying a controller parameter value using the adjustment parameter. Further, the method includes generating a voltage command using the current command and the modified controller parameter value, the voltage command used to generate torque by a motor.

公开(公告)号：US10676129B2

公开(公告)日：2020-06-09

申请号：US16017162

申请日：2018-06-25

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Tejas M. Varunjikar ,  Prerit Pramod ,  Julie A. Kleinau ,  Michael Eickholt ,  Rangarajan Ramanujam ,  Dennis B. Skellenger ,  Steven D. Klein

IPC: B62D5/04 ,  B62D6/10 ,  B62D6/04

Abstract: According to one or more embodiments of the present invention a steer by wire steering system includes a deviation detection unit configured to determine a deviation signal that is indicative of a disturbance in one or more components coupled to a rack. The steer by wire steering system further includes a handwheel notification module configured to generate a modification signal based on the deviation signal, in response to the deviation signal being detected for at least a predetermined duration. The steer by wire steering system further includes a handwheel control module that generates an input command corresponding to a reference torque generated by a road wheel actuator, a feedback torque for a driver is generated based on the input command. The handwheel control module further modifies the input command using the modification signal, the modification providing a notification corresponding to the disturbance to the driver.

公开(公告)号：US20190389508A1

公开(公告)日：2019-12-26

申请号：US16017162

申请日：2018-06-25

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Tejas M. Varunjikar ,  Prerit Pramod ,  Julie A. Kleinau ,  Michael Eickholt ,  Rangarajan Ramanujam ,  Dennis B. Skellenger ,  Steven D. Klein

IPC: B62D5/04 ,  B62D6/10

Abstract: According to one or more embodiments of the present invention a steer by wire steering system includes a deviation detection unit configured to determine a deviation signal that is indicative of a disturbance in one or more components coupled to a rack. The steer by wire steering system further includes a handwheel notification module configured to generate a modification signal based on the deviation signal, in response to the deviation signal being detected for at least a predetermined duration. The steer by wire steering system further includes a handwheel control module that generates an input command corresponding to a reference torque generated by a road wheel actuator, a feedback torque for a driver is generated based on the input command. The handwheel control module further modifies the input command using the modification signal, the modification providing a notification corresponding to the disturbance to the driver.