Coupling and control assembly including a sensor

Patent metadata

Field	Value
Publication number	US-2016201739-A1
Application number	US-201615078154-A
Country	US
Kind code	A1
Filing date	Mar 23, 2016
Priority date	Feb 19, 2014
Publication date	Jul 14, 2016
Grant date	—

Abstract

A coupling and control assembly including a sensor for providing an electrical signal for electronic transmission control is provided. The assembly includes a first coupling member which supports the sensor and a locking element and a second coupling member supported for rotation about a rotational axis. The second coupling member has a coupling face oriented to face radially with respect to the axis and has a set of ferromagnetic or magnetic locking formations. An electromechanical component is also supported by the first coupling member. Both the locking element and the sensor are in close-spaced opposition to the coupling face. The sensor senses magnetic flux to produce an electrical output signal indicative of a speed of rotation of the second coupling member. A variable magnetic field is generated in response to rotation of the locking formations past the sensor.

First claim

What is claimed is:

1 . A coupling and control assembly including a sensor for providing an electrical signal for electronic transmission control, the assembly comprising:
a controllable coupling assembly including first and second coupling members supported for rotation relative to one another about a rotational axis, the first coupling member having a first coupling face oriented to face radially with respect to the axis and having a locking element and a sensor, the second coupling member having a second coupling face oriented to face radially with respect to the axis and having a set of ferromagnetic or magnetic locking formations, the first and second members being positioned relative to each other so that the locking element and the sensor are in close-spaced opposition to the locking formations; and an electromechanical component including a reciprocating member, the component being supported so that the reciprocating member moves the locking element across a gap between the coupling faces in response to the component receiving an electrical control signal, the locking element abuttingly engaging one of the locking formations in a coupling position of the locking element to prevent relative rotation in one direction about the axis, the sensor sensing magnetic flux to produce an electrical output signal indicative of a speed of the relative rotation wherein a variable magnetic field is generated in response to rotation of the locking formations past the sensor.

2 . The assembly as claimed in claim 1 , wherein the sensor includes a magnetic field sensing element.

3 . The assembly as claimed in claim 1 , wherein the sensor is back-biased and wherein the locking formations are ferromagnetic.

4 . The assembly as claimed in claim 1 , wherein the locking formations comprise radially extending, angularly-spaced teeth.

5 . The assembly as claimed in claim 1 , wherein the component comprises a solenoid.

6 . The assembly as claimed in claim 1 , wherein the locking element is a radial pawl.

7 . The assembly as claimed in claim 1 , wherein the second coupling member has a width and wherein each locking formation extends the entire width of the second coupling member.

8 . The assembly as claimed in claim 1 , wherein the first coupling member is an outer coupling member and the second coupling member is an inner coupling member.

9 . The assembly as claimed in claim 1 , further comprising a biasing member to bias one of the reciprocating member and the locking member.

10 . The assembly as claimed in claim 9 , wherein the biasing member biases the locking member towards an uncoupling position.

11 . The assembly as claimed in claim 9 , wherein the biasing member biases the reciprocating member to an extended position.

12 . The assembly as claimed in claim 1 , wherein the reciprocating member and the locking element are connected together so that the reciprocating member moves the locking element across the gap.

13 . A coupling and control assembly including a sensor for providing an electrical signal for electronic transmission control, the assembly comprising:
a controllable coupling assembly including first and second coupling members mounted for rotation relative to one another about a rotational axis, the first coupling member having a first coupling face oriented to face axially in a first direction with respect to the axis and a second coupling face oriented to face radially with respect to the axis and having a locking element and a sensor wherein the second coupling member has a third coupling face oriented to face axially in a second direction opposite the first direction with respect to the axis and fourth coupling face oriented to face radially with respect to the axis and having a set of ferromagnetic or magnetic locking formations; and an electromechanical component including a reciprocating member, the component being positioned relative to the second coupling member so that both the locking member and the sensor are in close-spaced opposition to the fourth coupling face of the second coupling member, the reciprocating member moving the locking element across a gap between the second and fourth coupling faces in response to the component receiving an electrical control signal, the locking element abuttingly engaging one of the ferromagnetic or magnetic locking formations to prevent relative rotation in one direction about the axis in a coupling position of the locking element, the sensor sensing magnetic flux to produce an electrical output signal indicative of a speed of the relative rotation wherein a variable magnetic field is generated in response to rotation of the set of ferromagnetic or magnetic locking formations past the sensor.

14 . The assembly as claimed in claim 13 , wherein the second coupling member has a width and wherein each locking formation extends the entire width of the second coupling member.

15 . The assembly as claimed in claim 13 , wherein the sensor includes a magnetic field sensing element.

16 . The assembly as claimed in claim 13 , wherein the sensor is back-biased and wherein the locking formations are ferromagnetic.

17 . The assembly as claimed in claim 13 , wherein the set of ferromagnetic or magnetic locking formations comprise radially extending, angularly-spaced teeth.

18 . The assembly as claimed in claim 13 , wherein the component comprises a solenoid.

19 . The assembly as claimed in claim 13 , wherein the locking element is a radial pawl.

20 . The assembly as claimed in claim 13 , wherein the first coupling member is an outer coupling member and the second coupling member is an inner coupling member.

21 . The assembly as claimed in claim 13 , wherein the reciprocating member and the locking element are connected together so that the reciprocating member moves the locking element across the gap.

22 . The assembly as claimed in claim 13 , further comprising a biasing member to bias one of the reciprocating member and the locking member.

23 . The assembly as claimed in claim 22 , wherein the biasing member biases the locking member towards an uncoupling position.

24 . The assembly as claimed in claim 22 , wherein the biasing member biases the reciprocating member to an extended position.

Assignees

• Means Ind Inc

Inventors

• Kimes John W

Classifications

• F16D41/12

  with hinged pawl co-operating with teeth, cogs, or the like (F16D41/02, F16D41/24 take precedence) · CPC title

• F16D2300/18

  Sensors; Details or arrangements thereof · CPC title

• F16D27/10

  with an electromagnet not rotating with a clutching member, i.e. without collecting rings {(F16D27/004 takes precedence)} · CPC title

• F16D27/108 Primary

  with axially movable clutching members · CPC title

• F16D41/125 Primary

  the pawl movement having an axial component · CPC title