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BorgWarner suggests Valve-Event Modulated Boost system can offer 6-17% fuel economy benefit over already downsized and turbocharged engines

Green Car Congress

The VEMB system uses a concentric camshaft, blow-down manifold and scavenge manifold to separate the exhaust event into two phases: high-energy blow-down to the turbo without pumping losses, and high-hydrocarbon scavenge to the EGR system. Source: Borgwarner. Click to enlarge. —Christopher Thomas.

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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

Chrysler Group is offering fuel-saving Engine Stop-Start (ESS) technology as standard equipment on certain models of the award-winning 2015 Jeep Cherokee mid-size SUV and 2015 Chrysler 200 mid-size sedan. ESS accounts for a one-mpg city-cycle fuel-economy gain in the Ram, the most fuel-efficient truck in its segment.

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Event: 2023 Acura Integra Introduced

Clean Fleet Report

Acura wants to rekindle that spirit with the all-new 2023 Integra, which was shown to the media at a Los Angeles event this week. The lower fascia was painted in gloss black and featured body-color twin exhaust ports that looked great. The fifth-generation 2023 Acura Integra will come with a high-output turbocharged 1.5-liter

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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.) —Wes Helgeson, senior research engineer.

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CPT, TU Wien study finds 48V mild diesel hybrid cuts engine-out NOx 9%, 4.5% fuel economy improvement

Green Car Congress

A joint study by Controlled Power Technologies (CPT) and Austria’s Technische Universität Wien (TU Wien) into 48V diesel mild hybrid technology verified a 9% reduction of NO x in raw engine-out emissions, while retaining the fuel economy and CO 2 benefits of diesel engine technology.

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Tula presenting diesel Dynamic Skip Fire technology at Future Diesel Powertrain Summit in Shanghai

Green Car Congress

Importantly, dDSF is able to combine improved tailpipe emissions while simultaneously reducing fuel consumption, thus combining two critical objectives that have previously competed against each other. Engine controller with dDSF: Tula’s proprietary SW for smooth, efficient operation and fuel economy gains. Source: Tula.

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FCA US upgrades 3.6L Pentastar V-6; 2-step VVL, cooled EGR; up to 6% better fuel economy

Green Car Congress

Pentastar, first introduced in 2009 ( earlier post ), was the first of an all-new line of V-6 engines intended to improve fuel efficiency across the Chrysler, Jeep and Dodge lineup. Depending on the application, the redesigned V-6 delivers fuel-economy improvements of more than 6% while increasing torque more than 14.9%.