Ford Global Technolgoies, LLC

Brian Schabel

Alan Robert Dona

Alexander Petniunas

Jason Konopa

Mark McCarthy

Vincent Paul Solferino

Mark Lynn Clapper

Joseph Van Gilder

John Marshall Dodson, Ii

Methods and systems are provided for generation of lower-frequency tactile energy (e.g., vibration) of a vehicle system based on audio signals. In one example, a method may include acquiring an audio signal from an audio system, generating a motor input command, and applying the motor input command to at least a first traction motor and a second traction motor to create a resultant vibrational force.

Tactile energy generation based on audio signal

An exhaust system for an engine has a volume element such as a muffler or a silencer. First and second exhaust pipes are connected as dual exhaust pipes upstream of or downstream of the volume element. The first exhaust pipe has a first length (L). A valve is positioned in the second exhaust pipe at a distance (D) from the volume element. The distance D is a fraction of Lsuch that the second pipe is a resonator for the first pipe with the valve in a closed position. A method of controlling exhaust noise includes positioning a valve in the first exhaust pipe at a distance (D) from a volume element with D being a specified fraction of a length of the second exhaust pipe, and closing the valve such that the first pipe provides a resonator for the second pipe to counteract standing wave in the second pipe.

Exhaust system for an engine

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Northville, MI, United States of America

Brian Schabel