Remove 2017 Remove Exhaust Remove Standards Remove Statistics
article thumbnail

Study finds PM from biodiesel blends may be 50-80% less toxic per unit PM mass than from petroleum diesel

Green Car Congress

In the study, the team examined the relationships between biodiesel fuel blend, exhaust particle oxidative potential (OP), and PM composition. OP in oxidized aerosols, including engine exhaust, is commonly quantified using the DTT (dithiothreitol) assay. PM-normalized DTT Activity for biodiesel exhaust PM. —Holmén et al.

B0 186
article thumbnail

Study finds air quality models significantly underestimate traffic as source of NOx in Europe

Green Car Congress

Using statistical methods, the scientists infer emissions from these data within a radius of about one kilometer of the measurement location. Generally, different combustion and exhaust treatment characteristics result in significantly higher NO x /CO 2 emission ratios for diesel powered cars than for gasoline. —Thomas Karl.

Europe 150
article thumbnail

Bosch overview of global diesel markets; optimistic about US, China

Green Car Congress

This statistic increases to two-thirds of all new registrations if the data are restricted to passenger cars, according to Bosch. Bosch anticipates that the number of diesel models available in North America will reach 60 by 2017. In 2013,US manufacturers started to offer diesel versions of their own vehicles again.

Diesel 255
article thumbnail

Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

We use the data to quantify the effects of engine technology, emission standards, and cold-start on emissions. All the vehicles were tested using commercial gasoline that met the summertime California fuel standards. There were no statistically significant differences in the effects of cold-start on GDIs and PFIs. of the data.

Fleet 207
article thumbnail

DOE FY17 SBIR Phase I Release 2 topics include fuel cells, EV batteries, engines

Green Car Congress

The US Department of Energy (DOE) has announced the 2017 Small Business Innovation Research and Small Business Technology Transfer (SBIR/STTR) Phase I Release 2 topics , including three subtopics focused on hydrogen and fuel cell technologies. All fuel consumption testing must be conducted according to automotive industry norms.

Engine 253
article thumbnail

Audi highlights its range of electrification efforts; Q7 diesel PHEV, A7 fuel cell PHEV, BEV, 48V and more; 750 Wh/l by 2025

Green Car Congress

In the Audi Q7 e-tron quattro, the standard MMI navigation plus works closely with the hybrid management system. Hill descent control and an off-road mode for the electronic stabilization control ESC are standard. A tilt angle display is standard with the optional air springs. Market launch is scheduled to begin in 2017.

Audi 150