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GM investigating ultracap-based Active Energy Recovery Buffer as low-cost mechanism to improve conventional vehicle fuel economy

Green Car Congress

GM is exploring the use of an ultracapacitor-based Active Energy Recovery Buffer (AERB) scheme as a low-cost means to improve fuel economy in conventional vehicles; results of a simulation study presented at SAE 2011 World Congress showed improvement of up to 1.3% liter engine and a six-speed transmission.

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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

The VEMB system uses a concentric camshaft, blow-down manifold and scavenge manifold to separate the exhaust event into two phases: high-energy blow-down to the turbo without pumping losses, and high-hydrocarbon scavenge to the EGR system. to 2 ratio points and maintain the same knock limit for an additional 3-4% improvement 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

Green Car Congress

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

Green Car Congress

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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Controlled Power Technologies and Advanced Lead-Acid Battery Consortium to unveil LC Super Hybrid at Geneva show; low-cost “micro-mild” demonstrator

Green Car Congress

Despite the enhanced gasoline engine performance the vehicle achieves near diesel levels of fuel economy, but with lower production costs. The additional cost to the vehicle manufacturer is estimated between €750 and €1,500 (US$1,000 to $2,000). This power and torque is more comparable with VW’s larger 1.8-liter

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Road Test: 2022 Kia Rio S 5-door Hatchback

Clean Fleet Report

Excellent fuel economy, nice styling, low price and an excellent warranty. Low-cost but not cheap. This combination delivers EPA fuel economy numbers of 33 mpg city/41 highway/36 combined. The 2022 Kia Rio S ups the equation with superb fuel economy, a roomy cabin, and an excellent warranty.

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DOE awards Envera $2.8M to develop and to test efficient variable compression ratio engine

Green Car Congress

Envera estimates that the new engine could deliver up to a 40% improvement in fuel economy over a conventional port-fuel injection engine at a relatively low cost while also delivering performance, torque and flex-fuel capability. Engine downsizing is a key tool in improving fuel economy.

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