Remove Cars Remove Exhaust Remove Gasoline Remove Standards
article thumbnail

New Emissions Analytics study suggests pollution from tire wear now 1,850 times worse than exhaust emissions

Green Car Congress

In early 2020, UK-based independent testing firm Emissions Analytics published a study claiming that tire particulate wear emissions were 1,000 times worse than exhaust emissions ( earlier post ). As testament to the filtration efficiency of the latest gasoline particulate filters (GPFs), tailpipe mass emissions are now as low as 0.02

Exhaust 539
article thumbnail

BMW fitting all gasoline and PHEV models in Germany with particulate filters for Euro 6d-TEMP compliance

Green Car Congress

As of July 2018, all BMW gasoline and plug-in hybrid models available in Germany will be fitted as standard with a gasoline particulate filter (GPF) and thus will comply with the exhaust standard Euro 6d-TEMP. In addition, another 39 diesel models will be going on the market with Euro 6d-TEMP rating.

Gasoline 199
article thumbnail

Second-generation Audi A7 Sportback features standard 48V MHEV system with gasoline or diesel engines

Green Car Congress

The four-door coupé brings the show car design of the prologue studies ( earlier post ) to production. The drive system features a new mild-hybrid system (MHEV) as standard. TFSI (gasoline) or a 3.0 The three-liter gasoline unit produces a subtle and sonorous sound that never becomes intrusive even under load.

Audi 210
article thumbnail

BMW makes SCR standard on all diesels in future; more models to receive GPF (including i8); new diesel engine for X3

Green Car Congress

BMW is making a number of adjustments to its powertrain lineup from spring 2018, including new diesel aftertreatment systems for its smaller diesel models; gasoline particulate filters on more gasoline models; and a new diesel engine for the X3. New X3 diesel.

Diesel 199
article thumbnail

Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

Green Car Congress

Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.

Exhaust 319
article thumbnail

UC Riverside team wins EPA design contest with lawnmower exhaust aftertreatment device

Green Car Congress

A team of University of California, Riverside Bourns College of Engineering students have won an EPA student design contest for developing an exhaust aftertreatment device that cuts CO, NO x and PM emissions from lawnmowers. Then, an ultra-fine spray of urea solution is dispersed into the exhaust stream for catalytic NO x reduction.

Exhaust 261
article thumbnail

New Pierburg air blower with speed-controlled motor for reduction of gasoline engine emissions

Green Car Congress

Secondary air systems are used to reduce gasoline engine emissions by accelerating catalytic converter heat-up. The latter allows secondary air injection across a much wider engine map range and hence, at any given point in time, the precise air mass required for accelerating converter heat-up is injected into the exhaust system.

Gasoline 186