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HyBoost concept achieving close to Prius-level CO2 emissions; aggressive downsizing with advanced boosting and micro-hybrid system

Green Car Congress

variant but with fuel economy of a strong hybrid. HyBoost achieves this by combining aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance, and a micro-hybrid stop-start and energy recuperation systems, Boggs said. Downsizing the 2.0-liter Click to enlarge. Click to enlarge.

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Valeo acquires electric supercharger business from Controlled Power

Green Car Congress

Highly efficient at low engine revolutions, electric superchargers make it possible to downsize engines. version of the vehicle but with fuel economy and CO 2 emissions approaching those of a Prius. HyBoost shows comparable performance to the conventional 2.0L Earlier post.).

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FEV’s two-stage VCR system; 5-7% increase in fuel economy using variable length conrods

Green Car Congress

downsized, turbocharged) gasoline engine, as operating an engine with higher compression ratios at low load can increase fuel economy compared to operating an engine with fixed compression ratio. DEER Conference 2012). In comparison, naturally aspirated engines have a higher compression ratio in the order of 1 to 1.5 Tomazic, H.

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ACCESS project targeting 30% improvement in fuel economy and SULEV emissions in light-duty gasoline engine; multi-mode SI/HCCI combustion

Green Car Congress

Hakan Yilmaz, Global Technology Management, Gasoline Systems, for Bosch presented an overview of and update on the project at the 2011 DEER conference in Detroit in October. Two-stage boost—a small supercharger for HCCI, and a regular turbocharger for downsizing. HCCI range extension with boosting. Source: Bosch.

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Ricardo HyBoost “Intelligent Electrification” project awarded automotive environmental prize by Institution of Mechanical Engineers

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The Automobile Division of the Institution of Mechanical Engineers has awarded its Prize for the Environment to Ricardo, Ford Motor Company, Controlled Power Technologies and Valeo engineers for their paper HyBoost—An Intelligently Electrified Optimized Downsized Gasoline Engine Concept. Earlier post.). Earlier post.)

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Alan Taub: GM pushing on split-cycle engine technology in the lab; looking for low-load efficiency and packaging

Green Car Congress

Alan Taub said that the company is putting on a “ major thrust ” in its R&D laboratory to see if it can get split-cycle technology “ moving ” He made the remarks during the introductory plenary session today at the DOE’s 17 th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit.

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Magnetic eCVT could replace conventional hybrid mechanical eCVT with likely 1-2% fuel economy improvement and other benefits

Green Car Congress

Preliminary testing results of a prototype of the magnetic eCVT presented at the conference suggest a likely 1-2% improvement in fuel consumption compared to a conventional hybrid system, along with the benefits of reduced system complexity, no lubrication, low battery charge swing (allowing either downsizing the battery or extending the life of the (..)