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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

Green Car Congress

In 2013, the Cummins-led team demonstrated a Tier 2 Bin 5 version of the engine on the dyno, and then on a vehicle, while development of the Tier 2 Bin 2 engine started. Taking learnings from LTD and LDECC programs to utilize PCCI (pre-mixed charge compression ignition) and high charge flow operation. Weigert, E., Fuels Lubr.

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Ricardo to display functional integration prototype of ADEPT 48V “intelligent electrification” diesel

Green Car Congress

The ADEPT project was launched in 2013 to demonstrate the potential for 48V-based intelligent electrification to deliver full hybrid-scale fuel efficiency from a highly cost-effective package. An effective limitation on downsizing, however, is the delivery of acceptable driveability characteristics and launch performance.

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Advanced ADEPT 48V affordable mild hybrid on path to meet future ultra-low vehicle emissions

Green Car Congress

The concept of “intelligent electrification” enables highly aggressive engine downsizing and down-speeding beyond what might normally be possible other than through more expensive hybridization approaches. Further energy recovery is achieved from CPT’s exhaust-mounted 48V turbine integrated exhaust gas energy recovery system known as TIGERS.

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Nissan adding new 2.0L turbo to Skyline lineup in Japan

Green Car Congress

In November 2013, Nissan introduced the new Skyline with Nissan’s novel one-motor two-clutch hybrid system in every grade. The new turbocharged gasoline engine achieves a superior level of engine performance with maximum power output of 155kW (211ps) while improving fuel economy with its downsized displacement. Earlier post.)

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Ford / AVL study concludes mid-level ethanol blend attractive as a long-term future fuel for use in optimized engines in US

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The team presented a paper on their work at the 2013 SAE World Congress in Detroit. In a direct injection engine, they noted, the cooling of the charge and consequent knock relief provided by the evaporation of the fuel is proportional to the fuel flow per unit mass of air. Downsizing/downspeeding. Heat of vaporization (HoV).

Engine 253
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Mazdas new SKYACTIV gasoline and diesel engines are steps on the road to its Ideal Engine; focus on compression ratio

Green Car Congress

Since this energy loss is primarily thermal in nature and can be attributed to the exhaust, cooling system, and engine and transmission surfaces, Mazda’s R&D team’s central focus is on improving the engine’s thermal efficiency cost-effectively. Extreme compression ratio rather than downsizing. Although downsizing—i.e.,

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Team from GM, Ford, FCA reviews how to calculate engine efficiency benefits of high octane fuels

Green Car Congress

Knock and fuel octane rating are becoming increasingly important due to many powertrain design trends including downsizing, downspeeding, cylinder deactivation, and hybridization. … The vast majority (87%) of gasoline sold in the US in 2013 was regular grade, with 10% premium and 3% midgrade. In their study, Leone et al.

Engine 150