This study examines the effects on combustion, engine performance and exhaust pollutant emissions of a modern Euro 6, dual-loop EGR, compression ignition running regular EN590-compliant diesel hydrotreated vegetable oil (HVO). First, potential HVO as “drop-in” fuel, i.e., without changes to original, baseline diesel-oriented calibration, was highlighted compared results. showed how use can reduce engine-out soot (by up 67%), HC CO 40%), while NOx levels remain relatively unchanged. Fuel...

A premixed-charged compression ignition (PCCI) combustion mode has been applied to a Euro VI heavy-duty production engine simultaneously diminish particulate matter and nitrogen oxide exhaust emissions. The considered methodology exploits statistical techniques efficiently plan tests, analyze acquired data provide cause-and-effect relationships about the observed phenomena. Regression models were designed predict desired outputs as functions of selected inputs. model-based optimal...

A real-time combustion model was assessed and applied to simulate BMEP (Brake Mean Effective Pressure) NOx (Nitrogen Oxide) emissions in an 11.0 L FPT Cursor 11 diesel engine for heavy-duty applications. The activity carried out the frame of IMPERIUM H2020 EU Project. developed used as a starting base derive model-based controller, which is able control indicated mean effective pressure by acting on injected fuel quantity main injection timing. tested at steady-state conditions transient...

To meet future goals of energy sustainability and carbon neutrality, disruptive changes to the current mix will be required, it is expected that renewable fuels, such as hydrotreated vegetable oil (HVO), play a significant role. determine how these fuels can transition from pilot scale commercial marketplace, extensive research remains needed within transportation sector. It well-known cold engine thermal states, which represent an inevitable portion vehicle journey, have drawbacks,...

In the present work, different combustion control strategies have been experimentally tested in a heavy-duty 3.0 L Euro VI diesel engine. particular, closed-loop pressure-based and open-loop model-based techniques, able to perform real-time of center (MFB50), compared with standard map-based engine calibration order highlight their potentialities. technique, instantaneous measurement in-cylinder pressure signal is performed by transducer, from which MFB50 can be directly calculated start...

The emerging Vehicular Ad-hoc Network (VANET) technology will enable many exciting applications such as vehicular safety assistance and mobile entertainment. One of the key challenges toward successful roll-out VANET is to provide security privacy preserving mechanisms for users. Existing efforts on this topic rely heavily infrastructure like road-side units which however are not available everywhere. To minimize dependence infrastructure, we propose a novel Peer-based Automobile Identity...

An experimental investigation has been carried out to compare the performance and emissions of a low-compression-ratio Euro 5 diesel engine featuring high EGR rates, equipped with different injector technologies, i.e., solenoid, indirect-acting, direct-acting piezoelectric. The comparisons, performed reference state-of-the-art double fuel injection calibration, pilot-Main (pM), are presented in terms engine-out exhaust emissions, combustion noise (CN), consumption, at low–medium speeds...

In the present paper, a model-based controller of engine torque and engine-out Nitrogen oxide (NOx) emissions, which was previously developed tested by means offline simulations, has been validated on FPT F1C 3.0 L diesel rapid prototyping. With reference to previous version, new NOx model implemented improve robustness in terms prediction. The experimental tests have confirmed basic functionality transient conditions, over different load ramps at fixed speeds, average RMSE (Root Mean Square...

Abstract Renewable fuels can play an important role in achieving future goals of energy sustainability and CO 2 reduction. In particular, hydrotreated vegetable oil (HVO) represents one the most promising alternatives to petroleum-derived diesel fuels. Several studies have shown that conventional engines run on 100% HVO without significant modifications hardware control strategies. The current activity has experimentally evaluated potential as a “drop-in” fuel, i.e., changes original...

A precise estimation of the recirculated exhaust gas rate and oxygen concentration as well a predictive evaluation possible EGR unbalance among cylinders are paramount importance, especially if non-conventional combustion modes, which require high flow-rates, implemented. In present paper, starting from equation related to convergent nozzles, mass flow-rate is modeled considering pressure temperature upstream control valve, downstream it. The restricted flow-area at valve-seat passage...

Abstract To meet future energy sustainability and carbon neutrality requirements, disruptive changes to the current mix are expected. Renewable fuels, such as hydrotreated vegetable oil (HVO), could play an important role in this context. assess potential of HVO, further quantitative research analyses still required order emphasize benefits (and drawbacks, if any) from a global perspective, rather than limiting investigation single topic (e.g., emissions). For purpose, HVO conventional...

The exploitation of new advanced combustion concepts referred to as low-temperature (LTC) strategies gives the possibility reduce typical NOx and PM emissions from conventional diesel combustion. These are implemented using high quantity exhaust gas recirculated at intake manifold, which allows lower peak temperatures, thus reducing NOx, advancing fuel injection timing, keeping emission under control. Cooling EGR can be beneficial, increment in density burned gases downstream cooler reflects...