Systems and methods for passive damping in a handwheel actuator using an auxiliary winding

Patent metadata

Field	Value
Publication number	US-2024227913-A9
Application number	US-202318490096-A
Country	US
Kind code	A9
Filing date	Oct 19, 2023
Priority date	Oct 19, 2022
Publication date	Jul 11, 2024
Grant date	—

Abstract

A method for passive damping in a steer-by-wire handwheel actuator. The method includes winding a first coil around a first tooth of a motor, winding a second coil around a first tooth of the motor, and shorting the second coil to one of an internal aspect of the motor and an external aspect of the motor.

First claim

What is claimed is:

1 . A method for passive damping in a steer-by-wire handwheel actuator, the method comprising:
winding a first coil around a first tooth of a motor; winding a second coil around a first tooth of the motor; and shorting the second coil to one of an internal aspect of the motor and an external aspect of the motor.

2 . The method of claim 1 , wherein the first coil is larger than the second coil.

3 . The method of claim 1 , wherein a number of serial paths of the first coil is different from a number of serial paths of the second coil.

4 . The method of claim 1 , wherein a number of parallel paths of the first coil is different from a number of parallel paths of the second coil.

5 . The method of claim 1 , wherein a number of turns of the first coil is different from a number of turns of the second coil.

6 . The method of claim 1 , wherein shorting the second coil to one of the internal aspect of the motor and the external aspect of the motor includes directly shorting the second coil.

7 . The method of claim 1 , wherein shorting the second coil to one of the internal aspect of the motor and the external aspect of the motor includes shorting the second coil through a power resistor network.

8 . The method of claim 1 , wherein the motor includes a 9/6 motor.

9 . The method of claim 1 , wherein the motor includes a 12/8 motor.

10 . The method of claim 1 , wherein the motor includes a permanent magnet synchronous machine.

11 . A system for passive damping in a steer-by-wire handwheel actuator, the system comprising:
a first coil wound around a first tooth of a motor; a second coil would around a first tooth of the motor; and the second coil is shorted to one of an internal aspect of the motor and an external aspect of the motor.

12 . The system of claim 11 , wherein the first coil is larger than the second coil and wherein the first coil comprises a first material that is different from a second material of the second coil.

13 . The system of claim 11 , wherein a number of serial paths of the first coil is different from a number of serial paths of the second coil.

14 . The system of claim 11 , wherein a number of parallel paths of the first coil is different from a number of parallel paths of the second coil.

15 . The system of claim 11 , wherein a number of turns of the first coil is different from a number of turns of the second coil.

16 . The system of claim 11 , wherein the second coil is directly shorted to one of the internal aspect of the motor and the external aspect of the motor.

17 . The system of claim 11 , wherein the second coil is shorted to one of the internal aspect of the motor and the external aspect of the motor through a power resistor network.

18 . The system of claim 11 , wherein the motor includes a 9/6 motor.

19 . The system of claim 11 , wherein the motor includes a 12/8 motor.

20 . An apparatus for passive damping in a steer-by-wire handwheel actuator, the apparatus comprising:
a first coil wound around a first tooth of a motor, wherein in the first tooth includes an unmodified tooth structure, the first coil having a first number of serial paths and a first number of parallel paths; a second coil wound around a first tooth of the motor, the first coil being larger than the second coil, wherein the second coil has a second number of serial paths different form the first number of serial paths, and wherein the second coil has a second number of parallel paths different from the first number of parallel paths; and the second coil is shorted to one of an internal aspect of the motor and an external aspect of the motor.

Assignees

• Steering Solutions Ip Holding

Inventors

• Collier-Hallman Steven J
• Jammer Todd F
• Das Shuvajit

Classifications

• B62D5/0472

  for damping vibrations · CPC title

• B62D5/0481

  monitoring the steering system, e.g. failures · CPC title

• B62D5/0403 Primary

  characterised by constructional features, e.g. common housing for motor and gear box · CPC title

• H02K3/04

  Windings characterised by the conductor shape, form or construction, e.g. with bar conductors · CPC title

• H02K15/06

  Embedding prefabricated windings in the machines · CPC title