High-Frequency Anti-Lock Clutch System and Method

A lubricated clutch assembly comprising:

• a controller;
• a plurality of vibration sensors;
• a clutch housing at least partially containing a lubricated clutch pack having at least one friction interface;
• a hydraulically-actuated clutch piston responsive to a current command from said controller, and operable for applying a compression force on said clutch pack in response thereto;
• and
• an oscillation source configured to generate at least one high-frequency oscillation in response to said controller, and to direct said oscillation to said friction interface;
• wherein said controller is operable to detect shudder of the lubricated clutch assembly and is operable to activate said oscillation source in response thereto for minimizing said detected shudder.

A method of reducing clutch shudder in a wet clutch having a controller and a clutch pack disposed within a clutch housing, the clutch pack having mating surfaces forming at least one friction interface therebetween, and said wet clutch being actuatable in response to a current command from said controller, the method comprising:

• setting a threshold clutch shudder amplitude;
• detecting the clutch shudder of the wet clutch;
• and
• applying a high-frequency oscillation to the friction interface when said detecting determines that the clutch shudder exceeds said threshold clutch shudder amplitude, thereby minimizing said clutch shudder.