Notes from the 2023 Sustainable Fleet Technology Conference
Notes from the 2023 Sustainable Fleet Technology Conference covering a wide range of practical issues for fleet decarbonization
NHTSA proposes CAFE Standards for MY 2027 – 2032
Here’s the first look at the CAFE standards proposed by NHTSA for model year 2027 through 2032 cars and light trucks. More to come.
When in doubt … ask ChatGPT
Watch this fun video for a take by ChatGPT on the wavering stance of OEMs on BEVs and ICEs
Revised CO2 standards in Europe for heavy-duty vehicles
Europe has proposed an ambitious revision to its heavy-duty vehicle CO2 emission standards. Here’s a summary of some of the revised and new elements
A tale of two EV Outlooks
What’s better than a long-term EV outlook? Two outlooks, both published in the same month. Here’s a quick comparison of some of the important aspects pertinent to the rate of electric vehicle uptake.
Highlights from the IEA report on the future of e-mobility
Highlights from the International Energy Agency (IEA) annual outlook on electric vehicles, and the associated view on the batteries and infrastructure needed to 2030.
SuperTruck II Update : Notes from the 2021 DOE Annual Merit Review
As we enter into the final lap of the SuperTruck 2 program, all teams are confident of meeting the 55% BTE and doubling-of-freight-efficiency targets. Here are the technical solutions being pursued.
SuperTruck II : Notes from the 2020 DOE Annual Merit Review
Let’s put things in perspective first. Brake thermal efficiency was ~ 35% in 1960. In 2020, Weichai announced a 50% BTE commercial engine (more details on Dieselnet). And the US Department of Energy’s SuperTruck 2 program is targeting 55% BTE next year. At least two participants announced this year that they are close to 53%. Navistar, […]
How is the vehicle fuel economy (mpg) measured in the US ?
How is vehicle fuel economy (mpg) measured in the US ? The US EPA requires vehicle fuel consumption to be measured using lab chassis dynamometer testing. A representative vehicle is run over five test cycles, listed below along with the respective ambient temperatures: FTP-75 at 75 F: Represents city driving. Includes 3 measurements called bags […]
Passenger car fuel economy standards
Passenger car fuel economy standards