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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

Changes in the attributes (clockwise from upper left, weight, power, fuel economy and torque) of the Honda Accord over time as an example of fleet trends in the US. Knittel, 2009. In contrast, fuel economy actually increased by 15% during that period. Knittel, 2009. Click to enlarge.

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Concept: Honda RD Developing Variable Compression Ratio Engine with Dual Piston Mechanism

Green Car Congress

Engineers from Honda R&D Co., presented a pair of papers at the SAE 2009 World Congress describing the development of a variable compression ratio (VCR) engine enabled by a dual piston mechanism. improvement in fuel economy in operation over the Japanese 10-15 cycle. Kadota et al. Mpa (8 bar) and the oil flow rate is 3L/min.

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Controlled Power Technologies Packages Its Switched Reluctance Systems in ‘RegEnBoost’ System for Enhanced Support for Downsizing

Green Car Congress

Small displacement engines offer excellent CO 2 and fuel economy benefits; they have lower parasitic losses and operate more efficiently under part load conditions. Formed in 2006, the company is a spin-out from the Honda Ecotechnology Centre at Cranfield University. Guy Morris. They have also designed a 100 mpg UK (83 mpg US, 2.8

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Industry survey finds aluminum use in autos at all-time high; average per vehicle use expected to more than double from 2012 by 2025

Green Car Congress

The survey shows continued growth in automaker’s overall use of aluminum reaching a high of 343 lbs (156 kg) per vehicle in 2012—up 5% from 327 lbs (148 kg) in 2009. Using aluminum will extend the efficiencies of other technologies, while enabling secondary cost-savings from downsized powertrains without sacrificing performance.

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Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

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General project targets were to deliver diesel-like or better fuel economy using E10 gasoline (RON91), and to achieve low engine-out NO x and PM using low temperature combustion, the intention being to avoid the cost of aftertreatment for NO x and PM, in addition to meeting more stringent standards. Jetta Diesel T2B5 2009. Honda 2.2L

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IIHS Says Its Crash Test Study Suggests Small Cars Cant Protect People in Front-to-Front Crashes as Well as Bigger, Heavier Models

Green Car Congress

The Institute chose pairs of 2009 models from Daimler, Honda, and Toyota because these automakers have micro and mini models that earn good frontal crashworthiness ratings, based on the Institute’s offset test into a deformable barrier. Equally clear are the implications when it comes to fuel economy. 4, April 14, 2009.

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Variable compression ratio engine on its way

Green Cars News

At the SAE 2009 World Congress last week, engineers from Honda R&D Co described the development of a variable compression ratio (VCR) engine that is enabled by a dual piston mechanism. per cent improvement in fuel economy in operation. The engine has been tested in an otherwise conventional production 2.0 and back again.

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