article thumbnail

Study Assesses Product Attribute Trade-offs and Technological Progress; Meeting Proposed Obama Fuel Economy Standards Will Require Downsizing and Change in Fleet Mix

Green Car Congress

The study also found that once technological progress is considered, meeting the CAFE standards adopted in 2007 under the Bush Administration would have required halting the observed increases in weight and engine power characteristics, but little more. Knittel, 2009. Knittel, Christopher R.

article thumbnail

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

Green Car Congress

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. —David Boggs. Micro-hybrid market. million units per year by 2020.

article thumbnail

Ricardo to assist Lifan in development of 1.2L turbocharged DI gasoline engines for downsizing applications

Green Car Congress

Ricardo will assist Lifan Automobile Group based in Chongqing, China, with the development of a family of highly downsized gasoline engines capable of meeting future Chinese and international fuel economy and emissions regulations. capacity platform offering a competitive balance of performance, fuel economy, manufacturing cost and weight.

article thumbnail

Volvo to concentrate on hybrids and downsized engines for US

Green Car Congress

Volvo Car Corporation will rely on a powertrain strategy based on its new downsized 4-cylinder VEA (Volvo Environmental Architecture) engine platform ( earlier post ) and hybrids for the US market, said John Maloney, recently appointed President of Volvo Cars, US, in an interview at the Detroit Auto Show. Click to enlarge.

article thumbnail

Toyotas Yaris hybrid concept anticipates B-segment hybrid strategy with first downsizing of HSD; Prius +

Green Car Congress

This marks Toyota’s first downsizing of its HSD technology. As in the standard Prius, the Prius+ features three on-demand drive modes to increase the capabilities of the full hybrid powertrain, including the EV mode for zero emissions, zero fuel consumption, all-electric driving.

Prius 231
article thumbnail

VW Premieres New Polo GTI; Textbook Downsizing Results in 25% Reduction in Fuel Consumption from Predecessor

Green Car Congress

The new Polo GTI, in what Volkswagen is calling “textbook downsizing”, is powered by a new 1.4-liter The engine, which delivers 132 kW (177 hp), is coupled with a 7-speed DSG as standard. Volkswagen is premiering the new Polo GTI. liter TSI with gasoline direct injection plus turbo- and supercharging.

article thumbnail

Concept: Downsized and Supercharged Hybrid Pneumatic Engine for 30%+ Reduction in Fuel Consumption

Green Car Congress

Schematic of downsized and supercharged four-stroke hybrid pneumatic spark injection engine. The reduction in fuel consumption is obtained mainly through enabling the effective use of a heavily downsized engine, rather than from regenerative efficiency. The major part of this gain is due to downsizing the engine. Earlier post.).