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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). Background. Proposed PEF.

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DOE: Life cycle GHG emissions for 2020 electric small SUV were half those of a conventional gasoline small SUV

Green Car Congress

The vehicle manufacturing cycle includes impacts of raw material extraction, vehicle parts production, assembly, as well as its disposal and related materials recycling processes. The fuel economy and vehicle component weights were then incorporated into GREET to determine the WTW and C2G GHG emissions.

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EPA reconsiders withdrawal of California’s waiver to enforce greenhouse gas standards for cars and light trucks

Green Car Congress

The SAFE-1 action withdrew the 2013 Clean Air Act (CAA) waiver that had allowed California to enforce its greenhouse gas (GHG) standards for cars and light-duty trucks and its zero-emission vehicle (ZEV) sales mandate. Earlier post.). EPA plans to propose this rule in July 2021. Background.

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Tenneco/Gentherm showcasing prototype of thermoelectric generator for waste heat recovery; targeting 5% fuel economy improvement

Green Car Congress

Tenneco and Gentherm (formerly BSST/Amerigon) are part of a US Department of Energy (DOE) consortium actively developing a thermoelectric generator (TEG) for capturing waste exhaust heat in vehicles and converting it to electrical energy to be used to power electrical systems within the vehicle.

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GM to introduce strong hybrid version of Malibu; combined fuel economy above 45 mpg; leverages Volt

Green Car Congress

Using technology from the 2016 Chevrolet Volt propulsion system ( earlier post ), Malibu Hybrid will offer an estimated combined fuel economy rating exceeding 45 mpg (5.22 4-cylinder engine mated to a two-motor drive unit slightly modified from the 2016 Chevrolet Volt drive unit powers the Malibu Hybrid. engine with start/stop.

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New Corvette marks GM’s first use of heat-activated shape memory alloy to replace heavier motorized part

Green Car Congress

Corvette’s new shape memory alloy wire replaces a heavier motorized part. With about 200 motorized movable parts on the typical vehicle that could be replaced with lightweight smart materials, GM says it is looking at significant mass reduction going forward. kilogram) lighter than a conventional motorized system.

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Auto Alliance urges EPA to withdraw premature Final Determination on light-duty GHG regulations, resume Midterm Evaluation process with NHTSA

Green Car Congress

The Auto Alliance has sent a letter to EPA Administrator Scott Pruitt requesting that the US Environmental Protection Agency withdraw the Final Determination on the Appropriateness of the Model Year 2022-2025 Light-Duty Vehicle Greenhouse Gas Emissions Standards under the Midterm Evaluation which EPA announced on 13 January 2017.

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