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

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The change, petitioned for by the Natural Resources Defense Council and Sierra Club in 2021, would decrease the EV fuel economy values used in calculating CAFE compliance, thereby forcing automakers to either sell more EVs or to improve their other models to remain in regulatory compliance. Background. Proposed PEF.

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EPA awards SwRI $25M contract for emissions testing, analytical services for variety of propulsion systems

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Southwest Research Institute (SwRI) has received a five-year, $25-million contract from the US Environmental Protection Agency (EPA) to provide testing and analytical services related to vehicle emissions and fuel efficiency. —Patrick Merritt, program manager in SwRI’s Powertrain Engineering Division.

EPA 221
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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

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Comparison of brake thermal efficiency and specific fuel consumption at rated power (ICOMIA Mode 5), hydrogen vs. gasoline engines. This is due to raw, externally premixed fresh charge comprising air, fuel and lube oil being short-circuited into the exhaust during the scavenging process. fuel consumption penalty.

Engine 329
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What’s the State of Hydrogen Vehicles in 2022?

Clean Fleet Report

A Look at the Lightest Alternative Fuel. Many people credit General Motors with the first hydrogen-powered vehicle in 1966, which looks like a solid-color version of Fred’s Mystery Machine. This van ran on a fuel cell utilizing liquid hydrogen and oxygen. Hydrogen Vehicles in 2022.

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Update: 2024 Chevrolet Silverado EV

Clean Fleet Report

This review highlights the status of the Silverado EV as of May 2022. We will write more detailed reviews, including impressions for on and off-road driving and towing, when we have had the chance to get behind the wheel this much anticipated all-electric pickup from Chevrolet. Dual electric motors. 1,200 pounds of payload.

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Road Test: 2023 Lexus UX 250h Premium FWD

Clean Fleet Report

liter gasoline powered, 4-cylinder engine combined with the twin electric motors. Gas plus two electric motors The hybrid system automatically switches between the pure electric drive mode, combined electric motor and gasoline engine, and gasoline-only engine power.

Lexus 77
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SAE International releases 2nd edition of book on hybrid vehicle design

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Also, other commercialized alternative fuel technologies, including diesels, fuel cells, electric vehicles, and high efficiency gasoline cars are providing additional competition to the market. Engineering of vehicles will be the differentiator for consumers. Here, German wrote a multitude of standards.