Fca US LLC

Adam Fleischman

Russell J Wakeman

Roger C Sager

William B Blomquist

James J Daley

Michael T Vincent

Joseph M Dekar

Jeffrey P Wuttke

Ronald A Yannone, Jr

Luis Del Rio

Wei-Jun Yang

Mark L Lott

Edward E Baker

Aikaterini Tsahalou

An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor to an engine of the vehicle via a vapor line and a purge valve. The system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. A controller is configured to: detect an imminent cold start of the engine and, in response to the detecting, perform the cold start of the engine by controlling at least one of the purge pump and the purge valve, based on the measured amount of HC, to deliver a desired amount of fuel vapor to the engine, which decreases HC emissions by the engine.

Hydrocarbon vapor start techniques using a purge pump and hydrocarbon sensor

An evaporative emissions (EVAP) control system for a vehicle includes a purge pump configured to pump fuel vapor trapped in a vapor canister to an engine of the vehicle via a vapor line when engine vacuum is less than an appropriate level for delivering fuel vapor to the engine, the fuel vapor resulting from evaporation of a liquid fuel stored in a fuel tank of the engine. The EVAP control system includes a hydrocarbon (HC) sensor disposed in the vapor line and configured to measure an amount of HC in the fuel vapor pumped by the purge pump to the engine via the vapor line. The EVAP control system also includes a controller configured to, based on the measured amount of MC, control at least one of the purge pump and a purge valve to deliver a desired amount of fuel vapor to the engine.

Evaporative emissions control system including a purge pump and hydrocarbon sensor

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White Lake, MI, United States of America

Adam Fleischman