Ford Global Technolgoies, LLC

Christopher Marcus Williams

Karl M Jungbluth

Kurt Howard Nickerson

Terry Gene Feldpausch

Henry A Rebandt

Todd J Newman

When a vehicle driver selects reverse while a vehicle is moving forward, a transmission controller applies friction shift elements within the transmission to create a partial tie-up condition to decelerate the vehicle. Once the vehicle slows below a threshold speed, the controller engages a selectable one way brake and releases some of the friction shift elements to engage a reverse gear ratio.

Vehicle and method to control rolling engagements

A method for controlling a transmission includes applying a reference stroke pressure to an oncoming control element while executing a downshift to a target gear, determining a stroke pressure adjustment in response to a turbine speed flare during the downshift, and re-executing the downshift while applying to the oncoming element an adapted stroke pressure that is a sum of the stroke pressure adjustment and the reference stroke pressure.

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Farmington Hills, MI, United States of America

Christopher Marcus Williams