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

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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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CPT/AVL Study: New Generation of Micro-Hybrid Technologies Can Enable More than 25% Reduction in Fuel Consumption at Lower Cost Than Full Hybrid Drive Systems

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liter ELC-Hybrid to downsized 1.4L VTES + SpeedStart. The intent is to enable aggressive yet near term downsizing and downspeeding of existing engine families, delivering proven CO reduction and fuel economy improvement, without the usual dynamic compromises that typically limit market acceptance.

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CPT developing 48-volt electric supercharger for micro-mild hybrids

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At 48 volts, a VTES electric supercharger will transform 7kW of battery power into a highly boosted charge of air for downsized gasoline and diesel engines. There will be no torque deficit or other tradeoffs from essential engine downsizing and higher gearing, which now dominates the development of internal combustion engines.

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AVL Concept Turbohybrid Mild Hybrid System Approaches Full Hybrid Fuel Savings at Lower Cost; Improved Driveability

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Comparison of Fuel Consumption, Fun to Drive and System Cost of the different powertrain concepts. However, the system cost of the Turbohybrid was 150% that of the baseline, while the system cost of the full hybrid was more than 300% that of the baseline. Downsizing a gasoline engine (e.g., Click to enlarge.

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CPT VTES Electric Supercharger Selected for Two Projects

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When applied to a radically downsized 1.2-liter liter naturally aspirated engine, the downsized engine with electric supercharger reduces the 70-100 km/h (44-63 mph) top gear acceleration time from 18 to 11 seconds. CPT will showcase VTES at the international supercharging conference held in Dresden 24-25 September 2009.

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Toyota Aims to Reduce Fuel Cell Vehicle Cost to 1/10 of Current By Commercialization in 2015; Reduction to Another 1/10 With Scale

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Toyota’s targeted cost reductions in fuel cell vehicles. In a news conference at the Japan National Press Club on Friday, Toyota Motor President Akio Toyoda said that the company plans to begin mass production of electric vehicles in the US in 2012, followed by US production of fuel cell vehicles in 2015. Source: Toyota.

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