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Mazdas new SKYACTIV gasoline and diesel engines are steps on the road to its Ideal Engine; focus on compression ratio

Green Car Congress

Mazda’s roadmap to the ideal internal combustion engine. the step-by-step introduction of electrification to SKYACTIV internal combustion engines: stop-start, followed by regenerative braking, followed by electric motor drive technologies. Energy balance in an internal combustion engine. Click to enlarge. Click to enlarge.

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Ricardo’s “deep” Miller cycle concept: Magma

Green Car Congress

In its new report on downsized and boosted gasoline engine technologies ( earlier post ) the ICCT highlighted Ricardo’s work on an “extreme” Miller cycle concept with high (13:1) compression ratio (CR) and central direct injection in a downsized boosted engine. 1 in the baseline engine to 13.0:1 Click to enlarge.

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Bosch more broadly commercializing water injection system; up to 13% fuel savings under some conditions

Green Car Congress

Bosch is now more broadly commercializing its water injection system for turbocharged engines ( earlier post ). In the vehicle’s turbocharged six-cylinder engine, it offers improved performance and consumption even at full load. With our water injection, we show that the combustion engine still has some tricks up its sleeve.

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Update on DOE Co-Optima project to co-optimize fuels & engines; goal of 30% per vehicle reduction in petroleum

Green Car Congress

In October 2015, the US Department of Energy’s (DOE) launched a broad, joint effort to co-optimize the development of efficient engines and low greenhouse-gas fuels for on-road vehicles with the goal of reducing petroleum consumption by 30% by 2030 beyond what is already targeted. How do engine parameters affect efficiency?

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Kia launching new diesel 48V mild-hybrid powertrain in 2018 on Sportage; more models to come

Green Car Congress

The new “EcoDynamics+” powertrain supplements acceleration with electric power from an additional 48-volt battery and extends combustion engine ‘off time’ using a new Mild-Hybrid Starter-Generator unit. If the battery has sufficient charge, the combustion engine turns off automatically during in-gear deceleration and braking.

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CPT developing 48-volt electric supercharger for micro-mild hybrids

Green Car Congress

At 48 volts, a VTES electric supercharger will transform 7kW of battery power into a highly boosted charge of air for downsized gasoline and diesel engines. There will be no torque deficit or other tradeoffs from essential engine downsizing and higher gearing, which now dominates the development of internal combustion engines.

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Visitor observation: The upcoming frontier of EV innovation: The powertrain

Baua Electric

In interior combustion-powered automobiles, the transmission machine distributes energy from the engine to the wheels, occasion energy control in an EV is ruled via the pressure inverter regulating energy tide from the battery to the motor. Alternative basic variations pertain to the sorts of transmissions and torque supply worn.

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