Clutch arrangement for a drive train of a motor vehicle

• US 10,641,346 B2
• Filed: 02/02/2018
• Issued: 05/05/2020
• Est. Priority Date: 02/13/2017
• Status: Active Grant

• Current Assignee: MAGNA Powertrain GmbH & Co KG (Magna International Incorporated)
• Original Assignee: MAGNA Powertrain GmbH & Co KG (Magna International Incorporated)
• Inventors: Hehenberger, Alexander, Kippes, Kurt, Klar, Alexander, Schweiger, Wolfgang
• Primary Examiner(s): Hannon, Timothy
• Application Number:
  US15/887,016
• Publication Number:
  US 20180231070A1
• Time in Patent Office: 823 Days
• Field of Search: None
• CPC Class Codes: F16D 11/14 with clutching members movable only axially F16D11/02, F16D11/08 take precedence
• CPC Class Codes: F16D 2011/002 using an external and axially slidable sleeve for coupling the teeth of both coupling components together
• CPC Class Codes: F16D 2011/006 Locking or detent means, i.e. means to keep the clutch in engaged condition
• CPC Class Codes: F16D 2023/123 Clutch actuation by cams, ramps or ball-screw mechanisms
• CPC Class Codes: F16D 23/12 Mechanical clutch-actuating mechanisms arranged outside the clutch as such specific for combined clutches F16D21/00; mechanisms specific for synchronisation F16D23/02
• CPC Class Codes: F16D 23/14 Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
• CPC Class Codes: F16H 2063/305 using electromagnetic solenoids
• CPC Class Codes: F16H 2063/3056 using cam or crank gearing
• CPC Class Codes: F16H 2063/3093 Final output elements, i.e. the final elements to establish gear ratio, e.g. dog clutches or other means establishing coupling to shaft fluid actuated clutches F16H63/3026; electromagnetic clutches F16H2063/3046
• CPC Class Codes: F16H 25/186 with reciprocation along the axis of oscillation
• CPC Class Codes: F16H 63/30 Constructional features of the final output mechanisms
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

A clutch arrangement for a drive train of a motor vehicle comprising a switching element with a control geometry, an actuator, an actuating element, and a running roller. The switching element is arranged on an output element such that it is fixed in terms of rotation but can be moved axially into a first switching position and into a second switching position, an actuator operable for movement of the switching element from the first switching position into the second switching position and/or vice versa. The actuating element, via the actuator, actuates movement of the switching element from the first switching position into the second switching position and/or vice versa. The running roller is arranged on the actuating element.

Claims

1. Clutch arrangement for a drive train of a motor vehicle comprising:

a switching element with a control geometry, the switching element being arranged on an output element such that it is fixed in terms of rotation but can be moved axially, namely can be moved selectively into a first switching position and into a second switching position, the output element being drive-connected to a drive element in the first switching position of the switching element, and the output element not being drive-connected to the drive element in the second switching position of the switching element;

an actuator, the movement of the switching element from the first switching position into the second switching position and/or vice versa to be actuated via the actuator;

an actuating element, via which the actuator actuates the movement of the switching element from the first switching position into the second switching position and/or vice versa; and

a running roller which is arranged on the actuating element,

wherein the actuating element is actuated via the actuator in the first switching position of the switching element in such a way that the running roller can be brought into engagement with the control geometry of the switching element, with the result that the switching element can be transferred from the first switching position into the second switching position, wherein the actuating element has a crescent-shaped configuration.

2. The clutch arrangement according to claim 1, further comprising a holding mechanism which locks the switching element mechanically in the first switching position and in the second switching position.

3. The clutch arrangement according to claim 2, wherein the holding mechanism has a braking element which is arranged on the actuating element and which, upon the actuation of a movement of the switching element from the second switching position into the first switching position, acts on the holding mechanism in such a way that the mechanical locking of the switching element in the second switching position is released and thus the movement of the switching element from the second switching position into the first switching position is initiated.

4. The clutch arrangement according to claim 3, wherein the braking element acts on the holding mechanism in a frictionally locking or positively locking manner.

5. The clutch arrangement according to one of claim 1, wherein the actuating element can be pivoted about a rotational axis which runs parallel to a central rotational axis of the output element.

6. The clutch arrangement according to claim 1, wherein the actuation of the actuating element takes place via the actuator in an electromechanical, electrohydraulic or electromagnetic manner.

7. The clutch arrangement according to claim 1, wherein the control geometry of the switching element has at least one undercut, with a result that, in the first switching position of the switching element and/or in the second switching position of the switching element, the running roller is situated in an all-round clearance with respect to the control geometry.