5/26/2023 0 Comments Chevy volt range and mpgCity and highway fuel economy when the vehicle is in hybrid operation would be calculated as for hybrids now.In addition to mpg e, FE could be displayed separately for each fuel for the electric assist portion of the label in kWh/100 miles. Gasoline and electricity consumption while in blended mode would be measured as in SAEJ1711 ( earlier post). When the vehicle is in an electric assist operation, fuel economy would be expressed in miles per gallon equivalent (mpg e) that incorporates both the electrical and gasoline consumption into one city and one highway FE.When the vehicle operates in a combination of modes, some electric-only and some conventional hybrid operation, the value could be displayed in mpg, but only when accompanied by the appropriate amount of kWh/100 miles consumed.įor plug-in vehicles that require some assist from the engine for propulsion or as a generator for the test cycles (i.e., a plug-in hybrid), EPA suggests two types of FE labeling:.City and highway fuel economy when the vehicle is in hybrid operation (charge sustaining mode) would be calculated and displayed as done for hybrids now.Fuel consumption is adjusted via the 5-cycle, derived 5-cycle, or other appropriate method. Fuel consumption, FC EV, would be measured by SAEJ1634, without the C coefficient adjustment. For all-electric mode, FE would be expressed in miles per gallon equivalent (mpg e) and/or kWh per 100 miles.For this type of vehicle (into which category the Volt falls), EPA notes that there are three possible modes of operation to consider for FE labeling: all-electric operation (charge depleting mode), hybrid operation (charge sustaining mode) and a combination of the first two. The EPA anticipates issuing guidance and/or a rule this year.īroadly, the EPA is considering using two additional approaches to FE calculation and labelling: one for extended range electric vehicles, and one for PHEVs.įor the EREV category, EPA would include vehicles that can complete all the EPA required drive traces for the FTP, highway, US06, and SC03 without some assist from a combustion engine (either for propulsion or as a genset). The EPA is revisiting the FE label provisions as they apply to those types of vehicles, and is working with automakers, the SAE, the State of California, the Department of Energy and others to address these issues. While the fuel economy (FE) for combustible fueled vehicles (such as gasoline, diesel, compressed natural gas, or an ethanol blend) can easily be expressed in mpg, and fuel economy for an all-electric vehicle can be expressed in miles per gallon of gasoline equivalent (mpg e), the arrival of new technologies that can operate in all-electric mode, a conventional hybrid mode, or some combination of the two complicates the situation. However, we are very encouraged by this development, and we also think that it is important to continue to share our findings in real time, as we have with other aspects of the Volt’s development. Actual testing with production vehicles will occur next year closer to vehicle launch. The 230 city mpg number is a great indication of the capabilities of the Volt’s electric propulsion system and its ability to displace gasoline. Nevertheless, said Frank Weber, Global Vehicle Line Executive and Chief Engineer for the Volt: GM had been saying that the Volt had a range of 35-50 miles on one full battery charge.Both GM and EPA, which is supportive of GM’s exercise, point out that (a) the methodology is not finalized (b) that the data is preliminary, development-level data and that (c), the EPA hasn’t yet done the testing itself. The EPA said the Volt has a 35-mile range on electricity alone and a range of 379 miles with gasoline and electricity. The car has already received numerous awards, including Green Car Journal’s Green Car of the Year. The four-passenger car can travel on battery power alone and offers additional driving range when assisted by a 1.4-liter gasoline engine. has been touting the Volt for four years now and often refers to it as a technological showcase. Running on a combination of electricity and gasoline, the Volt generates the equivalent of 60 mpg, the EPA determined. Powered solely by the gasoline engine, the Volt gets 37 mpg. On electricity alone, the Volt achieves the equivalent of 93 mpg. Chevy Volt fuel economy mpg figures released The 2011 Chevrolet Volt, an innovative plug-in hybrid, received not one but three different mileage ratings from the U.S.
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