Dual clutch driveline twist control

US8332111B2 · kind B2 · utility

Assignee

• Ford Global Technologies, LLC · US

Inventors

• Alexander Phillip McDonnell · Dexter, US
• Terry G. Feldpausch · Carleton, US
• Bradley Dean Riedle · Northville, US
• Jeffrey Allen Doering · Canton, US
• Peter Douglas Kuechler · Canton, US
• John Eric Rollinger · Sterling Heights, US
• David H. Schmitt · White Lake, US

Key dates

• Filing date: Nov 1, 2010
• Grant date: Dec 11, 2012
• Expiry date: Sep 2, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W2710/1005
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for controlling a driveline having a transmission clutch includes locking the clutch before a driveline lash crossing occurs; maintaining a locked clutch during the lash crossing; after the lash crossing occurs, increasing a clutch capacity at a slower rate than a driveline twist torque rate; and after the lash crossing occurs, producing clutch slip by controlling engine torque and clutch capacity such that engine torque exceeds clutch capacity.