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Fiat Chrysler electrifies the Ram 1500 truck

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Unveiled at the 2018 Detroit auto show, the 2019 Ram 1500 has shed 100kg and added e-torque power. Available with a 5.7-liter Hemi V8 or a second-generation 3.6-liter Pentastar V6 engine, the 1500 uses mild-hybrid capability to recapture energy during deceleration to enable start/stop function as well as short-duration torque addition.


Mercedes-Benz unveils its revamped G-Class

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The all-new G-Class makes its public debut at the Detroit auto show in the USA this month in G550 form. Completely redeveloped and fitted with a 4.0-liter V8 biturbo gasoline engine offering 427ps and 450 lb-ft of torque at 2,000rpm to 4,750rpm, despite near-identical looks to its predecessor plenty has changed for the Mercedes-Benz SUV.


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In light of Fisker's solid-state battery breakthrough and claims of a one minute charge time, will this electric vehicle technology development kick-start mass BEV uptake? 

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New Aygo to feature latest Toyota engine technology

Set to appear in the new Aygo this summer, Toyota’s 1-liter three-cylinder petrol engine is one of a new series of Toyota engines to achieve higher fuel efficiency thanks to improved thermal and combustion management.
The revamped engine achieves a maximum thermal efficiency of 37% that, in combination with other fuel reduction measures, is said to deliver an improvement of almost 30% in fuel consumption compared to current vehicles, under the official Japanese test cycle.
The version of the engine to be used in Aygo runs at a higher 11.5:1 compression ratio than before. Toyota says the higher temperatures this creates is countered by the adoption of a cooled exhaust gas recirculation system and adjustment of the engine’s valve timing.
And according to the Japanese OEM, more efficient combustion is achieved due to a new-shape intake port and piston profile that create a strong tumble flow, with the air-fuel mixture moving in a more even, vertical swirl inside the cylinder.

The engine’s redesign has also made it lighter, with features such as an exhaust manifold integrated into the cylinder head. Significant reductions have also been made in the amount of energy lost through friction in the engine.
These measures contribute to an estimated pre-homologation combined cycle fuel consumption figure of 4.106 liters/100km (68.8mpg), with CO2 emissions of 95g/km.
The first wave of Toyota engines to feature these improvements also include a 1.3-liter petrol unit that uses the Atkinson cycle, a system previously adopted by Toyota for its latest-generation Hybrid Synergy Drive powertrains. Worldwide, Toyota plans to introduce 14 new engine variations based on these units by 2015.

30 April 2014


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