公开(公告)号：US20250119042A1

公开(公告)日：2025-04-10

申请号：US18480982

申请日：2023-10-04

Applicant: Steering Solutions IP Holding Corporation

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

IPC: H02K21/14 ,  B62D5/00

Abstract: A transverse flux machine (TFM) includes a rotor assembly configured to rotate about an axis and including a plurality of segments stacked axially. Each segment of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets. The TFM also includes a stator assembly including a transverse flux core configured to direct a magnetic flux in each of an axial direction and a radial direction toward the rotor assembly. A steer-by-wire system for a vehicle includes a handwheel actuator coupled to apply a torque to a steering wheel. The handwheel actuator includes a transverse flux machine (TFM) which includes a stator assembly and a rotor assembly configured to rotate about an axis. The rotor assembly includes a plurality of segments stacked axially. Each segment of the plurality of segments includes a plurality of rotor cores and a plurality of permanent magnets.

公开(公告)号：US20250119008A1

公开(公告)日：2025-04-10

申请号：US18482548

申请日：2023-10-06

Applicant: Steering Solutions IP Holding Corporation

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

IPC: H02K1/27 ,  B62D5/00 ,  H02K1/12 ,  H02K7/00

Abstract: An axial flux machine (AFM) includes: a rotor assembly configured to rotate about an axis. The rotor assembly includes a first rotor core and second rotor core. Each of the first rotor core and the second rotor core have a plurality of permanent magnets attached thereto, and each of the first rotor core and the second rotor core are spaced apart and parallel to one another and perpendicular to the axis. The AFM also includes a stator assembly having a PCB located between the first rotor core and the second rotor core and parallel thereto. The PCB defines a stator winding configured to generate a magnetic flux in an axial direction through each of the first rotor core and the second rotor core to cause the AFM to generate a torque. A steer-by-wire system includes a handwheel actuator including the AFM coupled to apply a torque to a steering wheel.

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：US20250119001A1

公开(公告)日：2025-04-10

申请号：US18481003

申请日：2023-10-04

Applicant: Steering Solutions IP Holding Corporation

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

IPC: H02K1/16 ,  B62D5/00 ,  H02K1/27

Abstract: A multi-phase transverse flux machine (TFM) includes a rotor assembly and a stator assembly. The rotor assembly is configured to rotate about an axis and includes a plurality of rotor cores and a plurality of pairs of permanent magnets. The stator assembly includes a plurality of stator windings and a transverse flux core configured to direct a magnetic flux in each of an axial direction and a radial direction toward the rotor assembly. The plurality of stator windings include a first phase winding having a first number of turns and a second phase winding having a second number of turns that is fewer than the first number of turns.

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.