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Toyota commissions Yamaha to develop hydrogen-fueled 5.0L V8; follow-on from Nov 2021 announcement

Green Car Congress

Hydrogen: not a stand-in for gasoline. As I watched this, I started to believe that there is actually enormous potential in the characteristics unique to hydrogen engines instead of simply treating it as a substitute for gasoline. —Yamaha President Hidaka at the Nov 2021 venue. —Takeshi Yamada.

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A Bamboo Carbon Filter for Diesels Could Reduce Emissions

Cars That Think

Although the pollutant emissions of a diesel engine are less than those of a gasoline one, it still emits carcinogens, nitrous oxides, and soot. To reduce emissions, diesel vehicles use filters that catch exhaust particles and other contaminants. Older models don’t even have the emission-control features that newer ones do.

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BMW M introduces its first high-performance car with electrified drive system: BMW XM PHEV

Green Car Congress

The BMW XM is equipped with a plug-in hybrid system comprising a V8 gasoline engine and electric motor that delivers combined fuel consumption of 1.6 – 1.5 l/100 km [147 – 157 mpg US] in the WLTP cycle; combined electric power consumption of 30.1 – 28.9

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Jacobs and Tula to cooperate on CDA valve actuation with Dynamic Skip Fire control

Green Car Congress

Also, higher exhaust temperatures in operating cylinders maintain aftertreatment temperatures at low load conditions and start-up. Cylinder Deactivation leverages Jacobs’ well-established componentry to disable engine valves in selected cylinders allowing a large engine to have the fuel economy of a smaller engine.

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Cummins Agrees to Pay $1.6 Billion in U.S. Emissions Fines

The Truth About Cars

We can visibly see them emitting more pollution than vehicles equipped with gasoline engines, though Europe had previously championed diesels as the cleaner option and even subsidized them due to diesel emitting less carbon dioxide. Viewed from an emissions standpoint, it’s hard to make a case for diesel motors.

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Pierburg GmbH electric compressor for turbos

Green Car Congress

Pierburg GmbH, part of the KSPG Group, has developed an electric compressor for spontaneously boosting the charge pressure of engines fitted with an exhaust-gas turbocharger. This component allows pressure to be increased regardless of the exhaust-gas energy availability.

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Audi developing electric biturbo for enhanced performance at lower engine speeds

Green Car Congress

Components of the electric biturbo system on the 3.0L Among the technologies it is developing to improve the fuel consumption of gasoline and diesel engines, Audi is working on an electric biturbo system in which a secondary compressor boosts the main turbocharger at lower engine speeds. V6 TDI with an electric biturbo.

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