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US 2016/0258497 A1Published application
System and method for eliminating adverse clutch vibratory responses
AssigneeROLLS-ROYCE plc
InventorsMatthew T. Bouton, Doug M. Schwerin, Stanford O. Clemens
Life of this patent
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Abstract
Systems and methods to control an amount of axial clearance within a clutch transmission system are disclosed. A propulsion system includes a clutch transmission system having clutch vibratory response clearance control logic configured to iteratively control the amount of axial clearance within the clutch transmission system so as to achieve a desired, e.g., consistent and/or limited, clutch vibratory response.
Claims20
A propulsion system, comprising:
- a gas turbine engine;
- a shaft coupled to the gas turbine engine;
- an input speed sensor coupled to the shaft;
- a clutch coupled to the shaft;
- a clutch actuation mechanism coupled to the clutch;
- a load selectively coupled to the gas turbine engine by engagement of the clutch;
- an output speed sensor coupled to the load;
- and
- electronics comprising vibratory response clearance control logic to:
- determine a current axial position of the clutch actuation mechanism at clutch engagement;
- determine an axial position adjustment for the clutch actuation mechanism based on a sensor input;
- and
- cause the clutch actuation mechanism to move to a post-engagement position defined by the current axial position and the axial position adjustment.
10 more elements
A clutch transmission system, comprising:
- an input shaft capable of being driven by an engine;
- an input speed sensor coupled to the input shaft;
- a clutch coupled to the input shaft;
- a clutch actuation mechanism coupled to the clutch;
- and
- electronics comprising vibratory response clearance control logic to, over time during operation of the clutch transmission system:
- determine a current axial position of the clutch actuation mechanism at clutch engagement;
- determine a post-engagement position for the clutch actuation mechanism based on the current axial position and a desired clutch vibratory response;
- and
- cause the clutch actuation mechanism to move to the post-engagement position.
7 more elements
A method for controlling a clutch vibratory response, the method comprising, with a controller:
- determining a current axial position of a clutch actuation mechanism for a clutch at clutch engagement;
- determining a post-engagement position for the clutch actuation mechanism after clutch engagement based on a desired vibratory response;
- and
- moving the clutch actuation mechanism to the post-engagement position for the desired vibratory response.
1 more element
Dependencies are inferred from the claim text.