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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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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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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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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

Engine controller with dDSF: Tula’s proprietary SW for smooth, efficient operation and fuel economy gains. dDSF improves fuel efficiency by firing all events at the most efficient ratio of air to fuel, allowing optimal combustion at all engine output levels. dDSF offers the opportunity to decreased after-treatment costs.

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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 & Tula demonstrate Diesel Dynamic Skip Fire (dDSF) cylinder deactivation; up to 66% reduction in NOx on CARB LLC #7

Green Car Congress

dDSF improves fuel efficiency by firing all events at the most efficient ratio of air to fuel, allowing optimal combustion at all engine output levels. The collaboration work was carried out on a Cummins X15 Efficiency Series 6-cylinder diesel engine, which already offers class-leading fuel economy.

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