Downsizing Engine EPA Exhaust 
Baua Electric
APRIL 17, 2024
This engine reportedly acted purely as a generator, supplying power to an electric motor rather than directly driving the wheels. As in other range-extended EVs, the battery could be replenished either by the internal-combustion engine/generator or via conventional AC or DC charging, per the report. But in 2021 it aborted that plan.
Green Car Congress
APRIL 19, 2013
A study by a team from Ford Motor Company and AVL has concluded that a mid-level ethanol blend—greater than E20 but less than E40—appears to be attractive as a long-term future fuel for the US for use in engines optimized for the higher octane blend. Downsizing/downspeeding. Earlier post.) Earlier post.). Fuel efficiency.
Green Car Congress
FEBRUARY 5, 2020
CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019. Source of data: US EPA (2019). This has resulted in higher catalyst loading per volume of substrate and led to downsizing of systems from those available in 2010. Chart: MECA.
Green Car Congress
MARCH 7, 2019
The selected projects will focus on reducing the total cost of ownership of NGVs, increasing vehicle efficiency, decreasing local air pollution, and advancing technology development to increase the use of more affordable medium- and heavy-duty natural gas engines and vehicles. Cummins Inc.
Green Car Congress
OCTOBER 16, 2013
As reported in a paper in ACS journal Environmental Science & Technology , the results showed that GDI technology has the potential to meet the upcoming California LEV III and US EPA Tier 3 PM mass standard of 3 mg/mi (phasing in over MY2017?2021) Schematic diagram of test vehicle engine & exhaust system and PM sampling systems.
Green Car Congress
MARCH 27, 2015
Testing was also conducted at the DTNA Detroit engineering facility to demonstrate engine efficiency by achieving 50.2% engine brake thermal efficiency. The Freightliner SuperTruck uses a downsized and downsped 10.7-liter The 390 hp/1400 lb-ft torque (291 kW/1,898 N·m) engine features a revamped combustion system.
Green Car Congress
JUNE 11, 2019
The report presents dynamometer test results and emission models from fully aged aftertreatment systems installed on heavy-duty on-road engines to offer several compliance paths that are achievable by model year 2024 without significant changes to today’s engines or aftertreatment systems. Source of data: US EPA (2019).
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