Apparatus for measuring steering angle

Patent metadata

Field	Value
Publication number	US-11713076-B2
Application number	US-202217798438-A
Country	US
Kind code	B2
Filing date	Feb 1, 2022
Priority date	Feb 1, 2021
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

An apparatus for measuring the steering angle of a wheel assembly including a suspended wheel mount and at least one suspension arm, the apparatus including a reference bracket, a rotating bracket and an angle sensor, the reference bracket and the rotating bracket each respectively including a measurement end and a mounting end, wherein the measurement ends of the reference and rotating brackets are rotatably coupled about a rotation coupling point such that the brackets can rotate with respect to one another, wherein the mounting end of the rotating bracket is coupled with the suspended wheel mount and the mounting end of the reference bracket is coupled with the suspension arm, and wherein the mounting end of the reference bracket is positioned on a plane defined by a steering axis of the suspended wheel mount and a rotation axis between the suspension arm and the suspended wheel mount.

First claim

The invention claimed is:

1. An apparatus for measuring the steering angle of a wheel assembly comprising a suspended wheel mount and at least one suspension arm, the apparatus comprising:
a reference bracket comprising a measurement end and a mounting end;
a rotating bracket comprising a measurement end and a mounting end; and
an angle sensor, configured for measuring an angle between said reference bracket and said rotating bracket about a rotation axis of said angle sensor,
wherein said measurement end of said reference bracket and said measurement end of said rotating bracket are rotatably coupled about a rotation coupling point such that said reference bracket and said rotating bracket can rotate with respect to one another;
wherein said mounting end of said rotating bracket is coupled with said suspended wheel mount and said mounting end of said reference bracket is coupled with said at least one suspension arm; and
wherein said mounting end of said reference bracket is positioned on a plane defined by a steering axis of said suspended wheel mount and a rotation axis between said at least one suspension arm and said suspended wheel mount during vertical motion of said suspended wheel mount, said vertical motion being relative to a reference frame, thereby keeping said rotation axis of said angle sensor aligned with said steering axis during vertical motion of said suspended wheel mount.

2. The apparatus according to claim 1 , wherein said measurement end of said reference bracket extends perpendicularly from a longitudinal section of said reference bracket.

3. The apparatus according to claim 1 , wherein a longitudinal section of said reference bracket is perpendicular with said steering axis.

4. The apparatus according to claim 1 , wherein said mounting end of said reference bracket is located on said rotation axis between said at least one suspension arm and said suspended wheel mount.

5. The apparatus according to claim 1 , wherein said plane coincides with said at least one suspension arm such that said rotation coupling point is located on said steering axis.

6. The apparatus according to claim 1 , wherein said plane is located on said rotation axis between said at least one suspension arm and said suspended wheel mount.

7. The apparatus according to claim 1 , wherein said apparatus is coupled with an upper end of said suspended wheel mount.

8. The apparatus according to claim 1 , wherein said apparatus is coupled with a lower end of said suspended wheel mount.

9. The apparatus according to claim 1 , wherein said angle sensor is coupled with said rotating bracket at said rotation coupling point.

10. The apparatus according to claim 1 , wherein said angle sensor is coupled with said reference bracket at said rotation coupling point.

11. An apparatus for measuring the steering angle of a wheel assembly comprising a suspended wheel mount and at least one suspension arm, the apparatus comprising:
a reference bracket comprising a measurement end and a mounting end;
a rotating bracket comprising a measurement end and a mounting end; and
an angle sensor, configured for measuring an angle between said reference bracket and said rotating bracket about a rotation axis of said angle sensor,
wherein said measurement end of said reference bracket and said measurement end of said rotating bracket are rotatably coupled about a rotation coupling point such that said reference bracket and said rotating bracket can rotate with respect to one another;
wherein said mounting end of said rotating bracket is coupled with said suspended wheel mount and said mounting end of said reference bracket is coupled with said at least one suspension arm; and
wherein said coupling of said mounting end of said reference bracket with said at least one suspension arm is such that said reference bracket is at a fixed spatial relationship relative to an intersection point of a steering axis of said suspended wheel mount and a rotation axis between said at least one suspension arm and said suspended wheel mount during vertical motion of said suspended wheel mount, said vertical motion being relative to a reference frame, thereby keeping said rotation axis of said angle sensor aligned with said steering axis during vertical motion of said suspended wheel mount.

12. The apparatus according to claim 11 , wherein said measurement end of said reference bracket extends perpendicularly from a longitudinal section of said reference bracket.

13. The apparatus according to claim 11 , wherein a longitudinal section of said reference bracket is perpendicular with said steering axis.

14. The apparatus according to claim 11 , wherein said apparatus is coupled with an upper end of said suspended wheel mount.

15. The apparatus according to claim 11 , wherein said apparatus is coupled with a lower end of said suspended wheel mount.

16. The apparatus according to claim 11 , wherein said angle sensor is coupled with said rotating bracket at said rotation coupling point.

17. The apparatus according to claim 11 , wherein said angle sensor is coupled with said reference bracket at said rotation coupling point.

18. An apparatus for measuring the steering angle of a wheel assembly comprising a suspended wheel mount and at least one suspension arm, the apparatus comprising:
a reference bracket comprising a measurement end and a mounting end;
a rotating bracket comprising a measurement end and a mounting end; and
an angle sensor, configured for measuring an angle between said reference bracket and said rotating bracket about a rotation axis of said angle sensor,
wherein said measurement end of said reference bracket and said measurement end of said rotating bracket are rotatably coupled about a rotation coupling point such that said reference bracket and said rotating bracket can rotate with respect to one another;
wherein said mounting end of said rotating bracket is coupled with said suspended wheel mount and said mounting end of said reference bracket is coupled with said at least one suspension arm; and
wherein said mounting end of said reference bracket is positioned on a plane defined by a line perpendicular to a steering axis of said suspended wheel mount and an intersection point of said steering axis with a rotation axis between said at least one suspension arm and said suspended wheel mount during vertical motion of said suspended wheel mount, said vertical motion being relative to a reference frame, thereby keeping said rotation axis of said angle sensor aligned with said steering axis during vertical motion of said suspended wheel mount.

19. The apparatus according to claim 18 , wherein said measurement end of said reference bracket extends perpendicularly from a longitudinal section of said reference bracket.

20. The apparatus according to claim 18 , wherein a longitudinal section of said reference bracket is perpendicular with said steering axis.

21. The apparatus according to claim 18 , wherein said plane coincides with said at least one suspension arm such that said rotation coupling point is located on said steering axis.

22. The apparatus according to claim 18 , wherein said plane is located on said rotation axis between said at least one suspension arm and said suspended wheel mount.

23. The apparatus according to claim 18 , wherein said apparatus is coupled with an upper end of said suspended wheel mount.

24. The apparatus according to claim 18 , wherein said

Assignees

• Ree Automotive Ltd

Inventors

• Avigur Eylon
• Lippmann Tomer
• Starik Eran
• Oisgeld Michael

Classifications

• B62D15/023 Primary

  by measuring on the king pin · CPC title

• B60G17/019

  characterised by the type of sensor or the arrangement thereof {(B60G17/01941 takes precedence)} · CPC title

• B60G2200/143

  with lateral arms crossing each other, i.e. X formation as seen along the longitudinal axis · CPC title

• B60G2200/144

  with two lateral arms forming a parallelogram · CPC title

• B60G2204/11

  Mounting of sensors thereon · CPC title