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DOE proposes revising procedures for calculating petroleum-equivalent fuel economy of EVs for use in CAFE calculations

Green Car Congress

The US Department of Energy (DOE) is proposing a significant revision in its procedures for calculating a value for the petroleum-equivalent fuel economy of EVs for use in the Corporate Average Fuel Economy (CAFE) program administered by the Department of Transportation (DOT). DOE published a final rule on 12 June 2000.

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Studies highlight effects of different gasoline components on fuel economy, combustion and emissions

Green Car Congress

Researchers at Jilin University (China) have investigated the effect of gasoline components on fuel economy, combustion and emissions in a GDI (gasoline-direct-injection) engine. The team subsequently followed up this first study with a second, exploring the effects in a PFI (port-fuel-injection) engine. —Han et al.

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Allison Transmission introduces new 9AT for release in 2020; extends xFE fuel-saving to Series 1000, 2000

Green Car Congress

With its deep first gear ratio and industry-leading ratio coverage, the Allison nine-speed transmission provides significant fuel savings as the efficient gear train allows the torque converter to lock up early in first gear. Other than our electric hybrid products, xFE models represent the very best fuel economy technology we offer.

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UPS Sets New Automotive Goal to Improve Package Delivery Fleet Fuel Economy a Total of 20% from 2000 to 2020

Green Car Congress

UPS is targeting a 20% improvement in fuel economy for its US package delivery fleet from 2000 to 2020. UPS has set a new automotive goal to improve the miles per gallon (MPG) performance of its entire US package delivery fleet by 20 percent between 2000 and 2020. Tags: Fleets Fuel Efficiency. Click to enlarge.

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Bentley’s new 616hp 12-cylinder GT Speed convertible with 8-speed and energy recuperation improves fuel economy by 15%

Green Car Congress

liter W12 combined with a close-ratio eight-speed ZF transmission to deliver a 15% improvement in fuel economy. Provisional EPA fuel economy ratings for the convertible are 12 mpg city, 20 mpg highway, and 15 mpg combined. Provisional EU cycle fuel consumption figures are 22.7 The Continental GT Speed Convertible.

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Nissan introduces new Navara pickup with fuel economy improved by up to 11% over previous model

Green Car Congress

The NP300 Navara’s powertrain delivers improved performance, with reduced fuel consumption and emissions, as well as a dynamic control braking system that makes for a leader in segment performance. Engine options have been developed for best in class fuel efficiency and emissions ratings. liter in-line 4-cylinder gasoline engine.

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SwRI develops D-EGR demonstrator highlighting fuel-efficient, cost-effective engine; 10% and above fuel economy improvements

Green Car Congress

D-EGR is an engine and control concept that combines fuel reforming to produce hydrogen with high levels of exhaust gas recirculation (EGR) to achieve very high levels of thermal efficiency. Engines Fuel Efficiency Vehicle Systems' In 2013, SwRI reported a 2.0-liter other actuators used to enable the control of D-EGR combustion.