公开(公告)号：US20250015644A1

公开(公告)日：2025-01-09

申请号：US18738536

申请日：2024-06-10

Applicant: Steering Solutions IP Holding Corporation

Inventor： Shuvajit Das ,  Alejandro J. Pina Ortega ,  Anik Chowdhury ,  Rong Yang

IPC: H02K1/14 ,  B62D5/00 ,  H02K21/14 ,  H02K21/22

Abstract: A transverse flux machine (TFM) includes: a rotor configured to rotate about an axis and having a plurality of pairs of permanent magnets, with flux concentrating and flux diverging cores alternatively placed between the permanent magnets, each of the pairs of permanent magnets arranged to generate a magnetic flux in a circumferential direction into the flux concentrating core and away from the flux diverging core; and a stator including a transverse flux core configured to direct the magnetic flux in each of a radial direction and an axial direction. The rotor further includes a non-magnetic material located between the permanent magnets of each of the pairs of the permanent magnets, adjacent to the flux concentrating core and opposite from the stator, the non-magnetic material having a thickness (TH) in a radial direction. A steer-by-wire system for a vehicle includes a handwheel actuator including a TFM coupled to a steering wheel.

公开(公告)号：US20240286669A1

公开(公告)日：2024-08-29

申请号：US18588649

申请日：2024-02-27

Applicant: STEERING SOLUTIONS IP HOLDING CORPORATION

Inventor： Anik Chowdhury ,  Michael J. Bock ,  Shuvajit Das ,  Steven J. Collier-Hallman

IPC: B62D5/00

CPC classification number: B62D5/005

Abstract: A method for passive damping in a steer-by-wire handwheel actuator includes selecting a number of windings for a motor of a handwheel actuator; shorting a subset of windings of the number of windings, each winding of the subset of windings being disposed at an obtuse angle from each other winding of the subset of windings; determining a resistance value for the motor; selectively adjusting the resistance value based on a number of windings associated with the subset of windings; and providing, in series with the subset of windings, at least one metal-oxide-semiconductor field-effect transistor (MOSFET) configured to: vary the resistance associated with the subset of windings based on a vehicle speed; and tune a damping characteristic associated with the handwheel actuator.