Technology Deepdive : Opposed piston engines
Opposed piston engines are being developed as a tool to reduce CO2 and NOx emissions from heavy-duty trucks. Here’s a deeper look into this technology and recent test results.
What’s in a tire – you may be surprised
Tire manufacturers are developing the next generation tires for light- and heavy-duty vehicles to address the new performance and sustainability needs of electrified fleets.
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
Hydrogen Fuel Cell Trucks
An updated summary of available hydrogen fuel cell electric trucks and buses, their announced range and hydrogen capacity.
CARB Advanced Clean Fleets – Proposing 100% electrification of heavy duty vehicles by 2036
A summary of CARB’s latest Advanced Clean Fleets proposal for heavy-duty truck electrification as discussed in the February 2023 Workshop.
Meeting the HD Low NOx standards – tech update part 1
This is part 1 of 2 technology updates on pathways to meet the low NOx standards for heavy-duty vehicles set by California and being considered by the EPA for nationwide implementation starting model year 2027.
Summary of EPA proposal : Heavy-Duty Clean Trucks Plan
Here’s a summary of EPA’s proposed changes to tailpipe NOx and CO2 emission standards for HD trucks in the US beyond 2027.
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, […]
California’s Heavy-Duty Low NOx Omnibus Regulation
California’s Air Resource Board (CARB) has passed what could be perhaps it’s last major regulation for reducing NOx and particulates from heavy-duty trucks and buses. The HD Low NOx “Omnibus” regulation practically touches upon every aspect of in-use emission reduction. Highlights summarized here.