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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

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At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 Cost of the new engine relative to gasoline baseline. Earlier post.). Source: Cummins.

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UMTRI study finds US diesel vehicles generally have lower total cost of ownership than gasoline vehicles

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Diesel vehicles generally saved owners between $2,000 to $6,000 in total ownership costs during a three to five year period when compared to similar gasoline vehicles, according to data compiled by the University of Michigan Transportation Research Institute (UMTRI). —“Total Cost of Ownership”.

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NREL thermal management system greatly increases power density of SiC inverters in heavy-duty applications

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Within heavy-duty applications, the power inverter is responsible for controlling the power flow between DC and AC electrical systems in order to run vehicle systems, accessories, and electric machines, such as motors and generators.

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Navigant: sales of LDVs with 48V subsystems will reach nearly 13.5M units annually by 2023

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However, advances in 12V technology coupled with the component costs of 42V DC to DC converters conspired to render such a major change impractical, and original equipment manufacturers (OEMs) at the time decided to keep 12V as the standard. —“48 Volt Systems for Stop-Start Vehicles and Micro Hybrids”.

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Updated Volkswagen 2017 e-Golf EPA-rated at 125 miles, 119 MPGe combined; pricing to come

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EPA-estimated fuel economy is 126 MPGe city, 109 MPGe highway and 119 MPGe combined (28 kWh/100 miles), making it one of the most efficient electric vehicles on the market (tied with the Chevy Bolt, second after the Hyundai Ioniq Electric). Using 13 cents per kilowatt-hour, the EPA has estimated an annual fuel cost of just $550.

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2019 Ram drops weight, gains 48V eTorque mild hybrid system

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The battery pack includes a 3-kilowatt DC-to-DC inverter to maintain the battery’s state of charge and convert 48 volts to 12 volts to power the Ram 1500’s accessories and charge its conventional 12-volt lead-acid battery. 1 compression ratio but runs on regular 87-octane fuel to reduce the cost of ownership.

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Georgia Tech life-cycle study finds TCO of medium-duty electric and diesel delivery trucks similar; electric life-cycle energy use and GHG lower than diesel

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They also found that the total costs of ownership (TCO) of the electric and diesel trucks are similar. Downstream energy use of the electric truck comprises electric drivetrain (DC?DC DC converter, inverter, and electric motor) efficiency and the loss in charging/ discharging. Credit: ACS, Lee et al. Click to enlarge.

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