Remove Automobile Manufacturer Remove Diesel Remove Downsizing Remove Gas
article thumbnail

SwRI’s HEDGE Technology Eliminates Low-Speed Pre-Ignition in Highly Boosted Engines

Green Car Congress

Southwest Research Institute (SwRI) has successfully demonstrated that its HEDGE (High-Efficiency, Dilute Gasoline Engine) technology, using cooled exhaust gas recirculation (EGR) and advanced ignition systems, suppresses low-speed pre-ignition in turbocharged gasoline direct-injection engines. Earlier post.).

Engine 186
article thumbnail

National Research Council Study Finds That Available Technologies Can Result in Significant Fuel Savings for Passenger Vehicles Over the Next 15 Years, But at Higher Purchase Prices for Consumers

Green Car Congress

Using a 2007 base vehicle, the committee estimated the potential fuel savings and costs to consumers of available technology combinations for three types of engines over that timeframe: spark-ignition gasoline, compression-ignition (CI) diesel, and hybrid. The study was sponsored by the National Highway Traffic Safety Administration.

Purchase 210
article thumbnail

NRC report finds significant number of near-term technologies could greatly reduce fuel consumption in passenger cars

Green Car Congress

Replacing spark-ignition engines with diesel engines and components would yield fuel savings of about 37% at an added cost of approximately $5,900 per vehicle, and replacing spark-ignition engines with hybrid engines and components would reduce fuel consumption by 43% at an increase of $6,000 per vehicle.

Fuel 210
article thumbnail

NHTSA Modeling and Technology Projections Underlying the Proposed CAFE Target of 34.1 mpg by MY 2016

Green Car Congress

On 15 Sep, NHTSA and the US EPA proposed a joint rulemaking on fuel economy and greenhouse gas emissions for light duty vehicles: an average new car 34.1 Turbocharging and downsizing (TRBDS): increases the available airflow and specific power level, allowing a reduced engine size while maintaining performance. Click to enlarge.

2016 210