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Cadillac's New Electric V-Series Concept is Far From a Silent EV

The Truth About Cars

It was easy to make fun of Dodge and the “fake” exhaust it chose to employ on the new Charger EV, but it’s no longer the only one trying to capture the thrill of a performance gas engine with a silent electric powertrain underneath. Cadillac currently sells two EVs, the Lyriq SUV and the Celestiq sedan.

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New mixed-oxide catalysts shown as viable substitute for platinum catalysts for diesel exhaust aftertreatment

Green Car Congress

Under laboratory-simulated diesel exhaust conditions, this mixed-phase oxide material was superior to Pt in terms of cost, thermal durability, and catalytic activity for NO oxidation. Nanostellar was founded in California in 2004 by scientists from Stanford University and NASA Ames Research Center.

Exhaust 240
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SwRI develops D-EGR demonstrator highlighting fuel-efficient, cost-effective engine; 10% and above fuel economy improvements

Green Car Congress

D-EGR is an engine and control concept that combines fuel reforming to produce hydrogen with high levels of exhaust gas recirculation (EGR) to achieve very high levels of thermal efficiency. PSA has been a member of the HEDGE consortium (now at HEDGE-III ) since 2004. In 2013, SwRI reported a 2.0-liter

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DOE awards $1.5M to Gentherm (Amerigon) for thermoelectric-based energy recovery system for heavy-duty vehicles; expands existing LDV program

Green Car Congress

The TEG technology, which converts waste heat from gas exhaust into electric energy and has the potential to improve passenger car fuel efficiency by as much as 5%. TEG & Exhaust System in Lincoln MKT. The US Department of Energy (DOE) has awarded Gentherm (formerly Amerigon) a $1.55-million Click to enlarge. Passenger car TEG.

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Cummins Emission Solutions introduces next-gen aftertreatment system EcoFit Single Module

Green Car Congress

The smaller size enables better heat management and retention for improved fuel economy capability, while the simple single-pass exhaust flow design delivers low back pressure, meeting the needs of end-user customers. Since 2004, more than 1 million EcoFit DPFs have been put into use.

Emissions 150
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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

Green Car Congress

This is due to raw, externally premixed fresh charge comprising air, fuel and lube oil being short-circuited into the exhaust during the scavenging process. Even with the move to four-stroke engines, additional complexity will be necessary—possibly exhaust after-treatment—in order to fully meet regulations.

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Achates Power wins $9M from ARPA-E to develop gasoline compression ignition medium-duty multi-cylinder opposed-piston engine

Green Car Congress

The unthrottled nature of the compression ignition process provides high engine efficiency while achieving compliant exhaust emissions with conventional, low-cost aftertreatment. This—in addition to the opposed engine architecture—could increase fuel efficiency by 40-50% over the comparable spark-ignited gasoline engine, Achates said.

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