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Toyota Central R&D developing free-piston engine linear generator; envisioning multi-FPEG units for electric drive vehicles

Green Car Congress

The team presented two papers on the state of their work at the recent SAE 2014 World Congress in Detroit. In the latter approach, the gas spring chamber is responsible for returning the piston for the subsequent combustion event. Direct injection reduced unburned hydrocarbon emissions exhausted through the scavenging process.

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Tesla Semi real-world sightings show that a cleaner, quieter future is possible for the trucking sector

Teslarati

In 2021, researchers from the University of Michigan highlighted the issue of noise and air pollution caused by heavy-duty diesel trucks running through neighborhoods in Southwest Detroit. PEPSI'S TESLA SEMI TRUCK IS SUPER QUIET WHILE MAKING U-TURN. ZERO EMISSIONS FRITOLAY'S TESLA SEMI TRUCK IN THE WILD. This is good news overall.

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KSPG shows new compact two-cylinder range extender for EVs, variable valve system

Green Car Congress

KSPG is showcasing the unit, along with other of its engine efficiency technologies such as the UniValve variable valve system, at the Detroit Auto Show. UniValve is a mechanical system for the simultaneous and continuous adjustment of valve lift and opening event. The control shaft is driven by a wear-free, brushless electric motor.

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US Army awards $4.9M contract to Achates Power and AVL for Next-Generation Combat Engine based on Achates two-stroke, opposed-piston technology

Green Car Congress

—David Merrion, former EVP of engineering at Detroit Diesel, Achates Power technical advisory board member, and two-stroke engine expert. Higher scavenging efficiency from a high stroke-to-bore ratio. Herold, Michael H. Wahl, Gerhard Regner, James U. Lemke, David E.

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2019 Ram drops weight, gains 48V eTorque mild hybrid system

Green Car Congress

FCA pulled the wraps off the new 2019 Ram 1500 at the Detroit Auto Show. Cooling air is drawn from inside the truck and vented via the built-in cabin exhausters. A cooled exhaust gas recirculation (EGR) system enables improved fuel economy and emissions performance at higher loads. The Pentastar V-6 uses an 11.3:1

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Ford unveils next-gen F-150; up to 700 lbs lighter, new 2.7L EcoBoost with stop-start

Green Car Congress

Ford introduced the all-new Ford F-150 at its press conference at the North American International Auto Show in Detroit. All-new aluminum cylinder heads feature water-cooled integrated exhaust manifolds. Intake and exhaust variable cam timing that improves torque while helping lower emissions. 2015 F-150. Click to enlarge.

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2014 Jeep Grand Cherokee offers new 3.0L EcoDiesel V-6 and 8-speed for 30 mpg highway

Green Car Congress

Among the many features of the new 2014 Jeep Grand Cherokee—introduced at the Detroit Auto Show—two in particular contribute to significantly improved fuel economy and driving performance: an optional new 3.0-liter Water-cooled exhaust-gas recirculation (EGR) for Tier II, Bin 5 and ULEV II compliance. Click to enlarge.

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