Method and system for providing a brake transmission shift interlock override mode in a shift-by-wire transmission

US8515635B2 · kind B2 · utility

Assignee

• Ford Global Technology, LLC · US

Inventors

• Todd Curtis Spaulding · Ann Arbor, US
• Brian J. Deurloo · Howell, US
• Mark Edward Zyskowski · Dearborn, US
• Richard Reynolds Hathaway · Livonia, US
• Jeffrey James Turnavitch · Livonia, US
• Christopher Lee Danks · Northville, US
• David Spuller · Dexter, US
• Charles C. Poon · Canton, US
• Matthew Luke Fyie · Canton, US

Key dates

• Filing date: Dec 9, 2011
• Grant date: Aug 20, 2013
• Expiry date: Feb 14, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H63/48
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A method and system provides a Brake Transmission Shift Interlock Override mode in a vehicle including a shift-by-wire transmission. With power applied and ignition on, a driver will press and hold an override switch for a calibrated time. While the override switch is pressed, the driver presses a non-Park button for another calibrated time. The result will be that the vehicle is placed in the selected range wherein the transmission will not automatically shift to Park upon detecting a triggering event. The driver is able to shift the vehicle from Park, even if an electrical failure prevents the transmission from shifting out of Park. As such the vehicle can be driven until the failure is serviced.