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Stop/start to be standard with V-6 in Jeep Cherokee and I-4 in 2015 Chrysler 200; up to 3% better fuel economy

Green Car Congress

liter Pentastar V-6, will experience estimated fuel-economy improvements of up to 3%, compared with the conventional vehicle-engine pairings. ESS accounts for a one-mpg city-cycle fuel-economy gain in the Ram, the most fuel-efficient truck in its segment. Chrysler 200 customers who opt for the 2.4-liter The 24-valve engine’s 10.7:1

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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. Click to enlarge.

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Enerpulse explains mechanism by which pulsed energy ignition plugs enhance fuel economy

Green Car Congress

Enerpulse Technologies said that it has further identified the underlying mechanism by which its its pulsed energy ignition technology improves fuel economy, reduces emission and delivers higher torque in spark ignited (SI) internal combustion (IC) engines. Earlier post.)

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Cummins ATLAS light-duty diesel surpasses fuel economy targets, with criteria emissions lower than Tier 2/Bin 2

Green Car Congress

The Cummins team not only surpassed all fuel-economy targets, but also achieved criteria emissions lower than the stringent Tier 2/Bin 2 levels. Test cycle fuel economy (mpg). The Highway Fuel Economy Test (HFET) and FTP-75 Test (city) cycles demonstrated fuel economy above 35 mpg (6.72 ATLAS target. ATLAS result.

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Hyundai Motor Group outlines new powertrain strategy: Smart Stream targeting 50% thermal efficiency

Green Car Congress

Hyundai Motor Group outlined its future powertrain development strategy at its International Powertrain Conference in Korea. More than 1,200 engineers and academics are participating in the two-day event, which features presentations exploring the core theme “Knock the Limit of Powertrain Technologies: To Enhance Value for Customers.”.

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2019 Ram drops weight, gains 48V eTorque mild hybrid system

Green Car Congress

Cooling air is drawn from inside the truck and vented via the built-in cabin exhausters. The newest Pentastar V-6’s advanced technologies, such as wide-range variable valve timing and two-step variable valve lift, deliver an optimized blend of power and fuel economy, based on the driver’s demand. The Pentastar V-6 uses an 11.3:1

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DARPA awards LiquidPiston $2.5M to advance further X4 rotary engine prototype

Green Car Congress

LiquidPiston will be developing its X4 test rig: a prototype 30 kW diesel X-engine, with targeted brake specific fuel consumption (BSFC) of 186 g/kWh (better fuel efficiency than heavy duty truck engines, and twice the fuel economy of a gasoline engine over a typical drive cycle). Water may be injected to internally cool the engine.

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