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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

Green Car Congress

At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 Cost of the new engine relative to gasoline baseline. Earlier post.).

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BorgWarner suggests Valve-Event Modulated Boost system can offer 6-17% fuel economy benefit over already downsized and turbocharged engines

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to 2 ratio points and maintain the same knock limit for an additional 3-4% improvement in fuel economy. It avoids pumping work through the turbocharger to improve fuel economy, and by phasing the two cams, the lobes, relative to each other we can actually modulate boost. Source: Borgwarner. Click to enlarge.

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HyBoost demonstrator debuts at LCV2011; 50% by swept volume downsizing with low-cost electrification

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Together the partners have sought to demonstrate an extremely cost-effective, ultra-efficient gasoline engine in a C-segment passenger car delivering the performance of a baseline 2.0-liter liter model but with significantly reduced real-world and drive cycle CO 2 emissions, and comparable improvements in fuel-economy.

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JAC and Ricardo develop production version of HyBoost concept; seeking 30% boost in fuel economy with same performance

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Anhui Jianghuai Automobile Group Co Ltd (JAC) and Ricardo are collaborating on a project to develop the Ricardo HyBoost concept ( earlier post )—a combination of low-cost technologies to deliver improved performance and fuel economy which featured recently in the Ricardo Centenary celebrations —into volume production on a JAC vehicle.

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Consumer Reports survey shows high fuel costs cause downsizing, less driving; 73% would consider alt fuel vehicle

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Two-thirds of owners surveyed said they expect their next vehicle to get better fuel mileage than the one they’re driving now, and fuel economy topped the list as the most important consideration when shopping for their next car, followed by quality and safety.

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ADEPT project to apply gasoline engine HyBoost system to diesel; 48V architecture; full hybrid fuel economy at much lower cost

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The project aims to deliver full hybrid equivalent fuel economy and performance with less than 70 g/km CO 2 emissions as measured over the European Drive Cycle, but at a significantly lower cost. version of its vehicle (a 2009 Ford Focus) but with fuel economy and CO 2 emissions approaching those of a Prius.

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

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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.