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SAE Publishes Revised J1711 Standard to Measure Exhaust Emissions and Fuel Economy of Hybrids and Plug-in Hybrids

Green Car Congress

The new version supersedes the J1711 standard originally published in March 1999. Also, the list of standard test procedures addressed in SAE J1711 has been expanded to cover all five major test cycle procedures (UDDS, HFEDS, US06, SC03, and Cold FTP) now being used to evaluate vehicle fuel economy. Earlier post.) Earlier post.)

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Study finds high exhaust temperatures within NTE operation for heavy-duty diesels with aftertreatment systems contribute to high nanoparticle concentrations

Green Car Congress

The transient results illustrate the gradual formation of the nucleation mode particles with continuous increase in exhaust temperatures. The particle number count under those conditions increased by more than an order of magnitude in comparison to DPF-out particle concentrations. Credit: ACS, Thiruvengadam et al. Click to enlarge.

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Mercedes begins sales of new 6-cylinder GLE diesel; first SUV in its class to meet Euro 6d

Green Car Congress

Mercedes-Benz has begun sales of two diesel models of the new GLE SUV which already comply with the coming Euro 6d emissions standard. With the near-engine insulated configuration, exhaust-gas aftertreatment does not suffer great levels of heat loss and generates extremely favorable operating conditions.

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VW’s 1.0 TSI in the new up! GTI wins International Engine of the Year 2018 award in its category; Euro 6d-TEMP

Green Car Congress

Exhaust gas after-treatment paired with innovative features inside the engine enables the GTI engine to meet the new EU 6AG (Euro 6d-TEMP) emission standard. As a comparison point, in 1976, the first Golf GTI delivered 140 N·m at 5,000 rpm.) It also comes with a gasoline particulate filter. The 85 kW / 115 PS 1.0

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NXP Launches new angular sensor compliant with SENT standard for automotive sensor applications; high-accuracy powertrain applications

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released the KMA215, a programmable angle sensor with digital output, which is compliant with the most recent Single Edge Nibble Transmission for Automotive Applications ( SAE J2716 JAN2010 SENT) standard. It operates at temperatures of up to 160 °C, in comparison to the industry average of 150°C. NXP Semiconductors N.V.

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SwRI CAT-DEF reduces heavy-duty diesel emissions to meet CARB 2027 NOx requirements

Green Car Congress

CAT-DEF—Catalyzed Diesel Exhaust Fluid—is an SwRI-developed catalyst- and surfactant-modified diesel exhaust fluid (DEF) solution. The internally funded advancement successfully reduced heavy-duty diesel engine nitrogen oxide (NO x ) emissions to meet the California Air Resources Board (CARB) 2027 standards.

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Swiss team concludes that particulate filters should be mandatory for GDI engines

Green Car Congress

Empa researchers Norbert Heeb and Maria Munoz discovered large quantities of benzo(a)pyrene (red bar)—a combustion product responsible for cutting short the lives of cigarette smokers—in the exhaust gas emitted by GDI engines. Levels in exhaust emissions were found to be as much as 1,700 times above this limit.

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