Hydraulic steering arrangement

Patent metadata

Field	Value
Publication number	US-10862382-B2
Application number	US-201816100758-A
Country	US
Kind code	B2
Filing date	Aug 10, 2018
Priority date	Aug 14, 2017
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

A hydraulic steering arrangement is described comprising a steering unit (1), a steering wheel and a steering wheel angle sensor (3) detecting an angle of rotation between the steering wheel and the steering unit (1). Such a steering arrangement should have a simple construction. To this end the steering wheel angle sensor (3) comprises a transmitter/receiver arrangement fixed to the steering unit (1) and a target assembly (4) which is rotateably fixed to the steering wheel by means of a connection geometry (9) and comprises a passive reaction arrangement.

First claim

What is claimed is:

1. A hydraulic steering arrangement comprising a steering unit, a steering wheel, and a steering wheel angle sensor detecting an angle of rotation between the steering wheel and the steering unit, wherein the steering wheel angle sensor comprises a transmitter/receiver arrangement fixed to the steering unit and a target assembly which is rotatably fixed to the steering wheel by means of a connection geometry and comprises a passive reaction arrangement, and wherein the target assembly comprises a coil arranged on a flexible carrier, wherein the carrier is mounted in a groove of the target assembly.

2. The steering arrangement according to claim 1 , wherein the connection geometry is exchangeable.

3. The steering arrangement according to claim 2 , wherein the connection geometry is arranged in an adapter ring.

4. The steering arrangement according to claim 3 , wherein the connection geometry comprises a hole surrounded by a teeth arrangement.

5. The steering arrangement according to claim 3 , wherein the connection geometry comprises at least three spring fingers protruding radially inwardly.

6. The steering arrangement according to claim 2 , wherein the connection geometry comprises a hole surrounded by a teeth arrangement.

7. The steering arrangement according to claim 2 , wherein the connection geometry comprises at least three spring fingers protruding radially inwardly.

8. The steering arrangement according to claim 1 , wherein the connection geometry comprises a hole surrounded by a teeth arrangement.

9. The steering arrangement according to claim 8 , wherein the connection geometry comprises at least three spring fingers protruding radially inwardly.

10. The steering arrangement according to claim 1 , wherein a radially inner wall of the groove is provided with a succession of protrusions and recesses, wherein the flexible carrier is supported by the protrusions.

11. The steering arrangement according to claim 10 , wherein the groove is filled with a potting material.

12. The steering arrangement according to claim 1 , wherein the groove is filled with a potting material.

13. The steering arrangement according to claim 1 , wherein the connection geometry comprises at least three spring fingers protruding radially inwardly.

14. The steering arrangement according to claim 13 , wherein the spring fingers are part of a spring ring fixed in circumferential direction to the target assembly.

15. The steering arrangement according to claim 14 , wherein the spring ring is locked in the target assembly by means of a lock ring.

16. The steering arrangement according to claim 14 , wherein the spring ring is molded in the target assembly.

17. A hydraulic steering arrangement comprising a steering unit, a steering wheel, and a steering wheel angle sensor detecting an angle of rotation between the steering wheel and the steering unit, wherein the steering wheel angle sensor comprises a transmitter/receiver arrangement fixed to the steering unit and a target assembly which is rotatably fixed to the steering wheel by means of a connection geometry and comprises a passive reaction arrangement, and wherein the connection geometry comprises at least three spring fingers protruding radially inwardly.

18. The steering arrangement according to claim 17 , wherein the spring fingers are part of a spring ring fixed in circumferential direction to the target assembly.

19. The steering arrangement according to claim 18 , wherein the spring ring is locked in the target assembly by means of a lock ring.

20. The steering arrangement according to claim 18 , wherein the spring ring is molded in the target assembly.

Assignees

• Danfoss Power Solutions Aps

Inventors

• Sorensen Ole Falck
• Krusborg Jorgen
• Rasmussen Soren Winkler
• Laugesen Caspar Pilkington

Classifications

• B62D15/0215 Primary

  by measuring on the steering column · CPC title

• B62D15/021 Primary

  Determination of steering angle · CPC title

• G01D5/2073

  by movement of a single coil with respect to two or more coils · CPC title

• B62D5/06

  fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle · CPC title

• H02K29/12 Primary

  using detecting coils {using the machine windings as detecting coil} · CPC title