Cab extender assembly method and apparatus

US6886882B2 · kind B2 · utility

Assignee

• PACCAR Inc · US

Inventors

• John Randolph Farlow · Seattle, US
• Robert Grimm · Port Townsend, US
• Gerald Eugene Miller · Kirkland, US
• Diana Weyna Smith · Ocean Park, US
• Timothy Michael Stapleton · Renton, US
• David C. Warren · Mercer Island, US
• Alec C. Wong · Bellevue, US
• Wayne K. Simons · Kent, US

Key dates

• Filing date: Jun 6, 2003
• Grant date: May 3, 2005
• Expiry date: Jul 3, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/82
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A cab extender assembly (200) for selectively manipulating an aerodynamic drag of a vehicle (100) is provided. The cab extender assembly includes a dynamic cab extender (206a) and a control system (208) coupled to the dynamic cab extender. The control system is adapted to selectively position the dynamic cab extender between a stowed position, a deployed position in which the dynamic cab extender is substantially aligned with a side of the vehicle, and a braking position in which the dynamic cab extender is at least partially disposed into an airstream passing along the side of the vehicle to increase a drag coefficient of the vehicle. The cab extender assembly may also include a fixed cab extender (204a) substantially aligned with the dynamic cab extender when the dynamic cab extender is in the deployed position. A method of operating a cab extender assembly is also disclosed.