COUPLING AND CONTROL ASSEMBLY FOR USE IN AN ELECTRONIC VEHICULAR TRANSMISSION
A coupling and control assembly for use in an electronic vehicular transmission is provided. A first coupling member having a first coupling face is supported for rotation relative to a second coupling member having a second coupling face about a rotational axis. The first coupling face is oriented to face radially with respect to the rotational axis. The first coupling face has a locking element for locking the first coupling member to the second coupling member. An electromechanical component supported by the first coupling member has at least one excitation coil, electrical wiring to supply electrical power to the at least one excitation coil from a power source and a reciprocating member. The locking element is supported in close-spaced opposition to the second coupling face.
1 . A coupling assembly for use in an electronic vehicular transmission, the assembly comprising:
first and second coupling members supported for relative rotation 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 hole extending completely through the first coupling member, the second coupling member having a second coupling face oriented to face radially with respect to the axis and having a set of locking formations; and
an electromechanical component connected to the first coupling member and supported within the hole and including at least one excitation coil, electrical wiring to supply electrical power to the at least one excitation coil from a power source and a reciprocating member being axially movable when the at least one excitation coil is supplied with current, the locking element being movable across a gap between the coupling faces in response to reciprocating movement of the reciprocating member, the locking element abuttingly engaging one of the locking formations to prevent rotation of the second coupling member in one direction about the axis in a coupling position of the locking element.
2 . The assembly as claimed in claim 1 , wherein the at least one excitation coil is potted.
3 . The assembly as claimed in claim 1 , further comprising an overmolded connector mounted on the component, the wiring extending through the connector to the at least one excitation coil.
4 . 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.
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 first coupling member is an outer coupling member and the second coupling member is an inner coupling member.
8 . 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.
9 . The assembly as claimed in claim 1 , further comprising a biasing member to bias one of the reciprocating member and the locking element.
10 . The assembly as claimed in claim 9 , wherein the biasing member biases the locking element 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 . A controllable coupling assembly for use in an electronic vehicular transmission, the assembly comprising:
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 the second coupling member having a second coupling face oriented to face axially in a second direction opposite the first direction with respect to the axis, the first coupling member having a third coupling face mounted to face radially with respect to the axis and including a locking element, the second coupling member having a fourth coupling face oriented to face radially with respect to the axis and having a set of locking formations, wherein the first coupling member including a radially extending hole which extends completely through the first coupling member to a position adjacent the third coupling face; and
an electromechanical component connected to the first coupling member and supported within the hole, the component including a reciprocating member, at least one excitation coil and electrical wiring to supply electrical power to the at least one excitation coil from a power source to cause the reciprocating member to reciprocate, the locking element being movable across a gap between the second and fourth coupling faces in response to reciprocating movement of the reciprocating member, the locking element abuttingly engaging one of the locking formations to prevent rotation of the second coupling member in one direction about the axis in a coupling position of the locking element.
13 . The assembly as claimed in claim 12 , wherein the at least one excitation coil is potted.
14 . The assembly as claimed in claim 12 , further comprising an overmolded connector mounted on the component, the wiring extending through the connector to the at least one excitation coil.
15 . A coupling and control assembly comprising:
a first coupling member having a first coupling face oriented to face radially with respect to a rotation axis and having a locking element;
a second coupling member having a second coupling face oriented to face radially with respect to the axis and having a set of locking formations; and
an electromechanical component including at least one excitation coil, electrical wiring to supply electrical power to the at least one excitation coil from a power source and a reciprocating member which reciprocates in response to the at least one excitation coil receiving electrical power, the component being supported by the first coupling member so that the component is positioned in a hole extending radially completely through the first coupling member wherein the locking element is in close-spaced opposition to the second coupling face and is movable across a gap between the first and second coupling faces in response to reciprocating movement of the reciprocating member, the locking element abuttingly engaging one of the locking formations to prevent rotation of the second coupling member in one direction about the axis in a coupling position of the locking element.
16 . The assembly as claimed in claim 15 , wherein the at least one excitation coil is potted.
17 . The assembly as claimed in claim 15 , further comprising an overmolded connector mounted on the component, the wiring extending through the connector to the at least one excitation coil.
18 . The assembly as claimed in claim 15 , wherein the locking formations comprise radially extending, angularly-spaced teeth.
19 . The assembly as claimed in claim 15 , wherein the component comprises a solenoid.
20 . The assembly as claimed in claim 15 , wherein the locking element is a radial pawl.
21 . The assembly as claimed in claim 15 , wherein the second coupling member has a width and wherein each locking formation extends the entire width of the second coupling member.
22 . The assembly as claimed in claim 15 , wherein the first coupling member is an outer coupling member and the second coupling member is an inner coupling member.
23 . The assembly as claimed in claim 15 , further comprising a biasing member to bias one of the reciprocating member and the locking element.
24 . The assembly as claimed in claim 23 , wherein the biasing member biases the locking element towards an uncoupling position.
25 . The assembly as claimed in claim 23 , wherein the biasing member biases the reciprocating member to an extended position.
26 . The assembly as claimed in claim 15 , wherein the reciprocating member and the locking element are connected together so that the reciprocating member moves the locking element across the gap.