Green Car Congress

AUGUST 4, 2009

Researchers at Syracuse University (New York) have developed a method to prepare, inject and combust supercritical (SC) diesel fuel. Given the high reactivity of diesel fuels compared to gasoline, the ignition and combustion of pre-mixed fuel-air charges poses a challenging control problem. Click to enlarge. Earlier post.).

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Diesel Fuel Emissions 2009 225

Green Car Congress

OCTOBER 10, 2016

Independent on-engine test results have verified the simulation predictions that a Torotrak V-Charge variable drive mechanical supercharger enables more ambitious levels of engine downsizing. The tests were carried out by the University of Bath Powertrain and Vehicle Research Centre (PVRC), using a Ford 1.0L Compared to a current 1.5L

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Downsizing Charging Engine Belgium 150

Green Car Congress

APRIL 17, 2014

GDCI engine was significantly better than advanced production spark injection gasoline engines, and comparable to very efficient hybrid vehicle engines at their best efficiency conditions (214 g/kWh). This early work established that gasoline-like fuels with high resistance to autoignition are preferred for PPCI. Earlier post.)

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Gasoline Engine Fuel Wisconsin 304

Green Car Congress

DECEMBER 1, 2014

This means that in addition the power demand is more difficult to achieve with engine downsizing and transmission down-speeding alone. The EU goal is to introduce the WLTP by 2017 if possible and no later than 2020 to coincide with the 95 g/km requirement. The WLTP is significantly more dynamic with faster acceleration rates.

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Standards International Vehicles Hybrid 257

Green Car Congress

APRIL 24, 2010

In recent years two methods, namely downsizing and downspeeding, were established on the market to reduce CO 2 emissions while maintaining the driving performance of engines with identical effective power but a larger displacement. Active-WG control is used for improvements at all engine speeds (< 5500 rpm).

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Engine Hybrid Fuel Exhaust 170

Green Car Congress

OCTOBER 8, 2013

A number of papers from Kalghatgi and his colleagues—and now other groups, including Tsinghua University in China and the Eindhoven University of Technology—have been published recently, exploring different aspects of this approach. Light naphtha has a boiling range between 30 °C and 90 °C and 5-6 carbon atoms.

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Gasoline Fuel Range Diesel 207

Green Car Congress

FEBRUARY 3, 2017

A team from the University of Birmingham (UK) and Shell Global Solutions has investigated the effect of RON, octane sensitivity and charge cooling in splash-blended ethanol fuels with different volume percentages of ethanol on a single-cylinder direct-injection spark ignition (DISI) research engine. and 85 vol.%

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Engine Downsizing Fuel Gasoline 150

Green Car Congress

NOVEMBER 4, 2011

Hakan Yilmaz, Global Technology Management, Gasoline Systems, for Bosch presented an overview of and update on the project at the 2011 DEER conference in Detroit in October. HCCI range extension with boosting. Two-stage boost—a small supercharger for HCCI, and a regular turbocharger for downsizing. Source: Bosch.

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Fuel Economy Gasoline Light Engine 218

Green Car Congress

FEBRUARY 10, 2014

Operating range of 2-stroke CAI fueled with gasoline, E10 and E85. Accordingly, the processes have been extensively researched over the last decade and adopted on prototype gasoline engines (e.g., Zhang et al. 2013a) Click to enlarge. Controlled autoignition (e.g., GM’s ongoing work, earlier post ).

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Gasoline Engine Exhaust Fuel 186

Green Car Congress

MARCH 20, 2013

A team from Brunel University, MAHLE Powertrain and University College London studied the combined effects of different inlet valve operating strategies on combustion, performance and emissions with different ethanol and 1-butanol blends with gasoline in a single-cylinder spark-ignition research engine equipped with a fully variable valvetrain.

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Gasoline Exhaust Downsizing Engine 225

Green Car Congress

MAY 8, 2013

At the recent 2013 SAE World Congress, engineers from Bosch and AVL presented papers on progress in the ACCESS project, describing the design, combustion development and controls development for a resulting 4-cylinder gasoline turbocharged direct injection (GTDI) engine with part-load HCCI capability. Earlier post.). I4 Ecotec engine.

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Fuel Economy Economy Fuel Engine 278

Green Car Congress

MAY 12, 2017

A new study quantifying emissions from a fleet of gasoline direct injection (GDI) engines and port fuel injection (PFI) engines finds that the measured decrease in CO 2 emissions from GDIs is much greater than the potential climate forcing associated with higher black carbon emissions from GDI engines. May, Greg T. Drozd, Allen H.

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Fleet Engine Global Fuel Economy 207

Green Car Congress

JANUARY 16, 2017

The researchers suggest that there are engine architectures that can provide higher thermodynamic efficiencies than available from modern internal combustion engines; however, new fuels are required to maximize efficiency and operability across a wide speed/load range. Higher fuel laminar flame speed expands dilute or lean operation.

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Engine Fuel Downsizing Gasoline 150

Green Car Congress

JULY 17, 2015

(In this paper PHEV refers solely to the long-range PHEV of 60 miles (100 km) electric-only range.) The PHEV does not require the heavy, costly batteries required by other electric cars, nor does it suffer from a limited range or poor freeway performance. Table of Contents. Introduction: Addressing the Earth Crisis.

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PHEV Plug-in Renewable Energy 150

Green Car Congress

NOVEMBER 19, 2014

Advanced lead-carbon batteries for vehicles currently under development will be capable of operating in the 30 to 70% SoC range at 12.5kW. This electrochemical breakthrough provides the most cost effective solution for 48V hybrids, which have a unique requirement for a battery demanding a high rate partial state-of-charge (HRPSoC) capability.

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Carbon Hybrid Batteries Battery 240

Green Car Congress

JUNE 19, 2015

In a new survey of 674 vehicle owners across the country, Brandon Schoettle and Dr. Michael Sivak of the University of Michigan Transportation Research Institute (UMTRI) examined several topics related to fuel economy and advanced vehicle technologies. Gasoline internal-combustion engines rated second-most preferred at $2.50/gallon,

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Standards Fuel Economy Economy EPA 150

Green Car Congress

DECEMBER 10, 2009

Comparison of fuel consumption of Omnivore, homogeneous Gasoline Direct Injection (GDI) and Spray-Guided GDI engines. The first testing phase of Lotus Engineering’s Omnivore variable compression ratio, flex-fuel direct injection two-stroke engine ( earlier post ) has been successfully completed on gasoline. Click to enlarge.

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Fuel Economy Engine Light Fuel 218

Tony Karrer Delicious EVdriven

APRIL 21, 2009

Fisker $80,000 Karma series luxury 50-mile range series PHEV, S Sunset convertible version.Partnering with Quantum Technologies. General Motors Chevy Volt series PHEV, which it calls "extended range electric vehicle" (EREV), part of "E-Flex" multi-fuel platform. Company says its focusing on gasoline and hydrogen.

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Plug-in Plug Hybrid PHEV 45