Importance

Loading Importance Indicators...

Abstract

An intake sound generator for an internal combustion engine of a vehicle, the internal combustion engine having an intake manifold for distributing a combustion mixture to a plurality of cylinders of the engine, and an engine throttle controlled by an electronic engine management system for regulating the flow of the combustion mixture into the intake manifold, the engine management system being coupled to an engine throttle lever whose position indicates the engine throttle position desired by a driver of the vehicle, and the intake sound generator comprising: a sound outlet port at an intake manifold; a first sound transmission tube connected to the sound outlet port and adapted to conduct engine-generated sound pulses from the intake manifold; sound receiving means coupled to the first sound transmission tube and operable to receive engine-generated sound pulses conducting along the first sound transmission tube; a sound throttle connected along the first sound transmission tube at a point intermediate between the sound receiving means and the sound outlet port, the sound throttle being operable to regulate engine-generated sound pulses conducted along the first sound transmission tube; and sound providing means operable to provide engine-generated sound pulses received at the sound receiving means into a vehicle cabin; wherein the intake sound generator is configured such that the sound throttle position varies in dependence on the position of the engine throttle lever and is independent of the engine throttle position.

Loading the Abstract Image...

First Claim