Wheel speed sensor

Patent metadata

Field	Value
Publication number	US-10386382-B2
Application number	US-201816051668-A
Country	US
Kind code	B2
Filing date	Aug 1, 2018
Priority date	Aug 7, 2017
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

The disclosure relates to a wheel speed sensor comprising a sensor element, which has a rotation detection element for electromagnetic detection of a speed of a wheel, in particular of a motor vehicle, and a sensor housing enclosing the rotation detection element and a fastening element, which has a fastening opening for vehicle-side fastening of the wheel speed sensor. The sensor element is enclosed by a guide sleeve that guides and/or aligns and/or positions the rotation detection element, wherein the guide sleeve is detachably connected to the sensor element and fixable inside a receptacle of the fastening element.

First claim

What is claimed is:

1. A wheel speed sensor comprising:
a sensor element having a rotation detection element that electromagnetically detects a speed of a vehicle wheel and a sensor housing that encloses the rotation detection element;
a fastening element that defines a fastening opening and a receptacle opening spaced apart therefrom, the receptacle opening defined by an inner face of the fastening element as an asymmetrical shape; and
a guide sleeve enclosing the sensor element and that guides, aligns and positions the rotation detection element, the guide sleeve being detachably connected to the sensor element, the guide sleeve having a fastening-side protruding section with an outer face defining a complementary asymmetrical shape, the outer face of the fastening-side protruding section interacting in a formfitting and/or friction-locked manner with the inner face of the receptacle opening such that the fastening-side protruding section is fixable inside the receptacle opening of the fastening element and the rotation detection element can be aligned and/or positioned uniquely.

2. The wheel speed sensor as claimed in claim 1 , wherein the fastening-side protruding section of the guide sleeve is detachably fixable inside the receptacle opening of the fastening element with a form-fit, friction lock.

3. The wheel speed sensor as claimed in claim 1 , wherein the guide sleeve comprises a corrosion-resistant material.

4. A vehicle wheel comprising:
a housing that encloses a sensor having a rotation detection element that electromagnetically detects a wheel speed; and
a guide sleeve that encloses and is detachably connected to the sensor, and guides, aligns and positions the rotation detection element, the guide sleeve having a protruding section extending outwardly therefrom, the protruding section with a circumferential outer face; and
a fastening element having an inner face circumferentially defining a receptacle opening in the fastening element, wherein the protruding section of the guide sleeve is fixable inside the receptacle opening of the fastening element, wherein the outer face of the protruding section is friction-locked with the inner face of the receptacle opening.

5. The vehicle wheel as claimed in claim 4 , wherein the protruding section of the guide sleeve is detachably fixable inside the receptacle opening of the fastening element with a form-fit, friction lock.

6. The vehicle wheel as claimed in claim 4 , wherein the inner face of the receptacle opening defines an asymmetrical shape to uniquely position and align the rotation detection element.

7. The vehicle wheel as claimed in claim 4 , wherein the protruding section of the guide sleeve is insertable in a formfitting manner into the receptacle opening.

8. The vehicle wheel as claimed in claim 4 , wherein the guide sleeve is formed from a plastic.

9. A vehicle wheel speed sensor comprising:
a fastening element defining a fastening opening and a receptacle opening spaced apart therefrom, the fastening opening sized to receive a fastener to connect the fastening element to a vehicle;
a sensor housing enclosing a sensor element with a rotation detection element configured to electromagnetically detect a speed of a vehicle wheel; and
a guide sleeve having a first end region and a second end region, the first end region of the guide sleeve having a protruding section extending outwardly therefrom, wherein the protruding section of the guide sleeve is received within the receptacle opening to connect the guide sleeve to the fastening element, wherein the sensor element is detachably connected to the guide sleeve, wherein the guide sleeve is arranged circumferentially about the sensor element and guides, aligns, and positions the rotation detection element therein.

10. The vehicle wheel speed sensor as claimed in claim 9 , wherein the protruding section of the guide sleeve extends outwardly from the guide sleeve to a circumferential outer face, the outer face spaced apart from the guide sleeve; and
wherein the receptacle opening of the fastening element is defined by an inner face of the fastening element, wherein the inner face is shaped to mate with the outer face.

11. The vehicle wheel speed sensor as claimed in claim 10 wherein the outer face of the protruding section is sized for friction fit with the inner face of the receptacle opening to retain the guide sleeve relative to the fastening element.

12. The vehicle wheel speed sensor as claimed in claim 10 wherein a circumferential shape defined by the outer face is asymmetrical; and
wherein a circumferential shape defined by the inner face is asymmetrical and complementary to the outer face.

13. The vehicle wheel speed sensor as claimed in claim 12 wherein a circumferential shape of the outer face is U-shaped.

14. The vehicle wheel speed sensor as claimed in claim 12 wherein a circumferential shape of the inner face is U-shaped.

15. The vehicle wheel speed sensor as claimed in claim 10 wherein the fastening element is defined by a first face and a second opposite face, the inner face of the receptacle opening extending between and intersecting the first and second faces.

16. The vehicle wheel speed sensor as claimed in claim 10 , wherein the protruding section of the guide sleeve is detachably fixable inside the receptacle opening of the fastening element with a form-fit, friction lock.

17. The vehicle wheel speed sensor as claimed in claim 10 , wherein the outer face of the protruding section is friction-locked with the inner face of the receptacle opening.

18. The vehicle wheel speed sensor as claimed in claim 9 wherein the guide sleeve has a cylindrical tube extending from the protruding section to the second end region.

Assignees

• Ford Global Tech Llc

Inventors

• Tomczak Peter
• Saleh Hicham

Classifications

• G01P3/481

  of pulse signals · CPC title

• G01P1/00

  Details of instruments · CPC title

• G01P1/026 Primary

  for speed measuring devices, e.g. pulse generator · CPC title

• B60C19/00

  Tyre parts or constructions not otherwise provided for · CPC title

• G01P3/44 Primary

  for measuring angular speed (G01P3/56 takes precedence) · CPC title