EXHAUST MODE SELECTOR SYSTEM

摘要

The present invention is an exhaust mode selector system which is able to control an exhaust system, as the exhaust system changes to accommodate various driving conditions. The exhaust system includes various exhaust flow paths to configure the exhaust system for operating in a highway mode, used for when the vehicle is operating on the highway, and a city mode, used for when the vehicle is operating under city driving conditions. A controller is able to position one or more valves to various configurations to transition between city driving and highway driving. Each of the valves being configurable provides for optimization of the balance between required power, fuel economy, and noise reduction.

主权项

1. An apparatus, comprising:an exhaust system having multiple modes of operation, including:
a first exhaust flow path; a second exhaust flow path; a first vehicle emissions control device disposed in the first exhaust flow path; a second vehicle emissions control device disposed in the second exhaust flow path; and at least one valve for directing exhaust gas between the first exhaust flow path and the second exhaust flow path; wherein the exhaust gas flows through the first vehicle emissions control device when the at least one valve is configured for diverting the exhaust gas through the first exhaust flow path, and the exhaust gas flows through the first vehicle emissions control device and the second vehicle emissions control device when the at least one valve is configured for diverting the exhaust gas through the second exhaust flow path.