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US 12,460,720 B2Granted
Actuation device for a transmission system
AssigneeValeo Embrayages
InventorsChristophe Mollier, Herve Maurel, Fabien Diascorn
Life of this patent
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Abstract
Actuation device for a transmission system includes an electric motor kinematically connected to a speed reducer and an output shaft of the speed reducer of axis of rotation, the output shaft being arranged to pivot through three adjacent angular sectors, a first angular sector, a second angular sector adjacent to the first angular sector, and a third angular sector adjacent to the second angular sector. An actuation cam is rigidly connected to the output shaft for rotation therewith. A receiving part is axially movable along a main axis perpendicular to the axis of rotation, comprising a receiving recess for receiving the actuation cam formed by two surfaces parallel to each other and perpendicular to the main axis.
Claims17
An actuation device for a transmission system, comprising:
- an electric motor kinematically connected to a speed reduction device and an output shaft of the speed reduction device having an axis of rotation, the output shaft being arranged to pivot through three adjacent angular sectors being a first angular sector, a second angular sector adjacent to the first angular sector, and a third angular sector adjacent to the second angular sector;
- an actuation cam rigidly connected to the output shaft for rotation therewith;
- and
- a receiving part axially movable along a main axis perpendicular to the axis of rotation, comprising a receiving recess for receiving the actuation cam formed by two surfaces parallel to each other and perpendicular to the main axis,
- wherein the receiving part moves axially between two end positions when the output shaft pivots through the whole second angular sector,
- wherein the receiving part remains axially immobile in a first end position when the rotation of the output shaft is situated in the first angular sector,
- wherein the receiving part remains axially immobile in a second end position when the rotation of the output shaft is situated in the third angular sector,
- wherein the actuation cam has two contact zones bearing on the parallel surfaces of the receiving recess, and a bearing width along the main axis separating the two contact zones is constant in the three angular sectors of rotation of the output shaft, and
- wherein an angle value of the first angular sector is greater than 3° and an angle value of the third angular sector is greater than 3°.
6 more elements
An actuation device for a transmission system, comprising:
- an electric motor kinematically connected to a speed reduction device and an output shaft of the speed reduction device having an axis of rotation, the output shaft being arranged to pivot through three adjacent angular sectors being a first angular sector, a second angular sector adjacent to the first angular sector, and a third angular sector adjacent to the second angular sector;
- an actuation cam rigidly connected to the output shaft for rotation therewith;
- and
- a receiving part axially movable along a main axis perpendicular to the axis of rotation, comprising a receiving recess for receiving the actuation cam formed by two surfaces parallel to each other and perpendicular to the main axis,
- wherein the receiving part moves axially between two end positions when the output shaft pivots through the whole second angular sector,
- wherein the receiving part remains axially immobile in a first end position when the rotation of the output shaft is situated in the first angular sector,
- wherein the receiving part remains axially immobile in a second end position when the rotation of the output shaft is situated in the third angular sector,
- wherein the receiving part is a part exhibiting symmetry of revolution about the main axis, the receiving recess being an annular groove, and
- wherein an angle value of the first angular sector is greater than 3° and an angle value of the third angular sector is greater than 3°.
6 more elements
An actuation device for a transmission system, comprising:
- an electric motor kinematically connected to a speed reduction device and an output shaft of the speed reduction device having an axis of rotation, the output shaft being arranged to pivot through three adjacent angular sectors being a first angular sector, a second angular sector adjacent to the first angular sector, and a third angular sector adjacent to the second angular sector;
- an actuation cam rigidly connected to the output shaft for rotation therewith;
- and
- a receiving part axially movable along a main axis perpendicular to the axis of rotation, comprising a receiving recess for receiving the actuation cam formed by two surfaces parallel to each other and perpendicular to the main axis,
- wherein the receiving part moves axially between two end positions when the output shaft pivots through the whole second angular sector,
- wherein the receiving part remains axially immobile in a first end position when the rotation of the output shaft is situated in the first angular sector,
- wherein the receiving part remains axially immobile in a second end position when the rotation of the output shaft is situated in the third angular sector, and
- wherein the receiving part comprises at least a first connecting spline arranged to rotate a driven shaft, and a second connecting spline arranged to drive a drive shaft, the first and second connecting splines being respectively engaged with the respective driven shaft and respective drive shaft when the receiving part is in a second coupled end position, and one of the first and second connecting splines being respectively disengaged from the respective driven shaft and respective drive shaft when the receiving part is in a first uncoupled end position.
5 more elements
Dependencies are inferred from the claim text.