article thumbnail

Study finds Tula dDSF software reduced NOx 41% and CO2 9.5% in Leibherr D966 diesel

Green Car Congress

Based on simulations, Tula’s diesel Dynamic Skip Fire (dDSF) software ( earlier post ) allowed the reduction of NO x tailpipe emissions by 41% and CO 2 by 9.5%. 6-cylinder diesel engine, will also be used in further tests. Liebherr D966 inline engine tested with Tula’s diesel Dynamic Skip Fire software.

Diesel 259
article thumbnail

Cummins and Tula study of Diesel Dynamic Skip Fire (dDSF) shows 74% reduction in NOx, 5% in CO2 on low load cycle

Green Car Congress

a leader in propulsion efficiency, announced at SAE International’s WCX the results of their collaborative study on the effectiveness of Tula’s diesel Dynamic Skip Fire (dDSF) in reducing nitrogen oxides (NO x ) and carbon dioxide (CO 2 ) emissions on a Cummins X15 HD Efficiency Series diesel engine. Cummins Inc. Earlier post.).

Diesel 370
article thumbnail

JATO: European new car CO2 emissions highest average since 2014; shift from diesel to gasoline and SUVs rise

Green Car Congress

An analysis by JATO Dynamics has found that average new vehicle CO 2 emissions in European increased in 2018, with the total average increasing by 2.4 g/km in 2018—the highest average of the last four years. At the same time, the sales growth of diesel cars fell from +7% to +1%. g/km to 120.5 g/km in 2015 to -1.4

Diesel 236
article thumbnail

EEA: average CO2 emissions from new cars and new vans in Europe increased in 2018

Green Car Congress

According to provisional data published by the European Environment Agency (EEA), the average CO 2 emissions from new passenger cars registered in the European Union (EU) in 2018 increased for the second consecutive year, reaching 120.4 g CO 2 /km in 2018. Vans registered in the EU and Iceland in 2018 emitted on average 158.1

2018 259
article thumbnail

EEA final data shows average car CO2 emissions in Europe kept increasing in 2019

Green Car Congress

Moreover, the average mass of new conventional cars, excluding SUV, increased by around 22 kg from 2018 to 2019. In 2019, as in 2018, gasoline cars were the most sold passenger vehicles, constituting 59% of all new registrations. Diesel vehicles constituted 31% of new registrations. g CO 2 /km.

2019 259
article thumbnail

EIA: US energy-related CO2 fell by 2.8% in 2019, slightly below 2017 levels

Green Car Congress

in 2018, the only annual increase in the past five years. The changes in US energy-related CO 2 emissions in 2019 offset the increase in 2018. In 2019, the transportation sector’s energy-related CO2 emissions declined by 0.7% US energy-related CO 2 emissions declined by 2.8% CO 2 emissions had increased by 2.9%

2019 273
article thumbnail

JATO: new car average CO2 emissions highest in Europe since 2014; slow EV uptake insufficient to counter fewer diesels and more SUVs

Green Car Congress

As expected, the combination of fewer diesel registrations and more SUVs continued to have an impact on emissions. g/km higher than in 2018, the delta was lower than the difference between the 2017 and 2018 results—where the growth was 2.4 g/km, almost half that produced by diesel and petrol vehicles.

SUV 221