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ICCT working paper highlights benefits of current and emerging light-duty diesel technology; “promising pathway for compliance”

Green Car Congress

Diesel vehicles have had a rough time penetrating the US light-duty vehicle market, reflecting outdated negative perceptions, higher fuel prices for diesel than for gasoline, the cost of complying with stringent US emission standards, and rapidly improving gasoline engines. —Isenstadt and German (2017). Background.

Diesel 186
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HyBoost concept achieving close to Prius-level CO2 emissions; aggressive downsizing with advanced boosting and micro-hybrid system

Green Car Congress

HyBoost achieves this by combining aggressive 50% downsizing of the engine with an electric supercharger for transient low-speed performance, and a micro-hybrid stop-start and energy recuperation systems, Boggs said. Downsizing the 2.0-liter Click to enlarge. —David Boggs. Micro-hybrid market. million units per year by 2020.

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Calls for an international 48V electrical standard for vehicles; looming WLTP implementation

Green Car Congress

At the 2 nd International Conference Automotive 48 V Power Supply Systems , held last week in Düsseldorf, Germany, Controlled Power Technologies (CPT), a major sponsor of the event, together with leading car makers and Tier 1 suppliers, argued the need for an internationally agreed 48V electrical standard. Earlier post.).

Standards 257
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Ford study suggests GDI engines can meet coming California and US PM emissions standards over 150k miles; more work to be done

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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) —Maricq et al. Fuel injectors were side-mounted. gasoline blend.

Standards 246
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Center for Automotive Research calls long-run economic risk to auto industry of mandating permanent fuel economy standards very serious; recommends periodic reviews

Green Car Congress

Plug-in hybrids dominate market penetration in 2025 under CAR scenario IV (62 mpg CAFE standard). Each of these nine pathways produced a specific fuel economy standard and cost estimate measured at retail price equivalence. The results for each fuel economy scenario are: Scenario I: (47 mpg CAFE standard, 37.6 Source: CAR.

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Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

Green Car Congress

The rapid market penetration of GDI vehicles has led governments to impose stricter standards to control PM emissions. California LEVIII and US Tier 3 regulations will begin a four year phase-in starting in 2015 and 2017, respectively, to a PM maximum of 3 mg/mile from the current 10 mg/mile LEVII limit. —Yang et al.

Gasoline 253
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Continental XL3 solenoid injector in production in 1.5L GDI engine; looking ahead to Euro 6c

Green Car Congress

Compliance with future emissions standards such as Euro 6b (from 9/2014) and Euro 6c (from 9/2017) will call for further improvements in engine combustion processes. Static flow range for the XL3 is up to 20 g/s (at 100 bar at 70 °C); the XL2 had a maximum flow of up to 17 g/s.

Engine 294