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

Green Car Congress

Turbo boost can be controlled by changing the timing of the exhaust valves—no waste gate is required. In testing, BorgWarner observed fuel consumption improvements of 2% at low speeds to 12% at high speeds with VEMB, according to Thomas. The company also has demonstrated the potential to increase compression ratios by 1.5

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ARPA-E awards U-M $1.9M to develop advanced low-cost high-efficiency engine; boosting, highly dilute combustion and 48V system

Green Car Congress

million to a project to develop a high-efficiency engine system that integrates a compact micro-hybrid configuration of a supercharger with an electric waste heat recovery system and employs high rates of recirculated exhaust gases. If we improve the responsiveness of small engines, then we can push for more efficient cars at low cost.

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UC Riverside team fabricates nanosilicon anodes for Li-ion batteries from waste glass bottles

Green Car Congress

Researchers at the University of California, Riverside’s Bourns College of Engineering have used waste glass bottles and a low-cost chemical process to fabricate nanosilicon anodes for high-performance lithium-ion batteries.

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Hyundai showcasing new downsized turbo engines and 7-speed dual-clutch transmission; i40 48V Hybrid, i30 CNG

Green Car Congress

The new engine comes with an electronically-controlled waste-gate to optimize flow and improve low-end torque and throttle response. Up to 15 kg of gas can be stored in the tank at 200 bar pressure.

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Ricardo launches pre-production prototype of high-speed flywheel energy storage for off-road equipment

Green Car Congress

To put this into perspective, this means that approximately half of the total potential energy that is currently wasted in arm/bucket descent is available for storage and re-use, reducing the amount of fuel burned in the engine. —Ricardo VP of Innovation David Rollafson. Click to enlarge.

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ALABC: 48V mild hybrids can meet emission targets with CO2 reductions of 15-20%

Green Car Congress

The T-Hybrid (based on a Kia Optima) ( earlier post ) and the ADEPT (based on a Ford Focus) ( earlier post ) both utilize an advanced 48V lead-carbon battery system with bolt-on electrical components that allow for significant engine-downsizing without loss in performance. liter engine the performance of a 1.8

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Viable exhaust-driven on-board ethanol reforming for improvements in fuel economy and emissions

Green Car Congress

Because exhaust-driven reforming uses only waste engine heat, it avoids this efficiency hit, the authors note. However, they add, this benefit comes at the cost of a substantial design complication: the reformer must serve as both a reactor and a heat exchanger between the fuel and the exhaust stream.