A5025269614- Advanced Combustion Engine Technologies
- Vehicle emissions and performance
- Combustion and flame dynamics
- Biodiesel Production and Applications
- Electric and Hybrid Vehicle Technologies
- Catalytic Processes in Materials Science
- Advanced Battery Technologies Research
- Electric Vehicles and Infrastructure
- Heat transfer and supercritical fluids
- Mechanical Engineering and Vibrations Research
- Technical Engine Diagnostics and Monitoring
SAIC Motor (China)
2024
Tongji University
2019-2023
Hunan University
2013-2018
University of Wisconsin–Madison
2017-2018
A new equivalent consumption minimization strategy (ECMS) is proposed for a hybrid electric vehicle in which the factor varies dynamically with current speed and minimum engine operation time that leads to improvement fuel economy battery performance. To construct strategy, self-organizing map neural-network was utilized recognize group patterns. The driving cycles corresponding these patterns were reconstructed solving optimal factors. When applying on road, pattern recognized by using...
Natural gas and diesel dual-fuel combustion is a promising technology for efficiently utilizing natural in compression ignition engine. composition varies depending on the geographical source, which affects engine performance. The methane number an indicator of fuel quality to assess variation composition. In this study, influences gas/diesel were numerically examined using computational fluid dynamic simulations. differences between gases with same but different components also compared....
An experimental investigation on the spatial distribution of knock events in a turbocharged spark-ignition engine for hybrid vehicle applications was conducted by using multichannel fiber optic method. The positions were detected under different conditions to investigate influence crucial design and operating parameters characteristics including combustion chamber its relationship intensity. measured data reveal that with port fuel injection (PFI) system is mainly located exhaust side...
In this study, natural gas and diesel dual-fuel combustion under a medium load was numerically optimized for heavy-duty engine using genetic algorithm optimization approach. This approach employed micro-genetic code coupled with an computational fluid dynamics to perform the optimization. Initially, premixed double direct injection of fueling strategy conducted both stock piston bowl shape bathtub shaped piston. Low emissions moderate thermal efficiency close 50% were achieved configurations...
A predictive energy management strategy is proposed for plug-in hybrid electric vehicles, which adopts a new high-precision vehicle speed prediction algorithm and real-time reference state of charge (SOC) trajectory planning method. The includes modified Markov model based on features recognized by the self-organizing map neural network method, Fourier approximation, moving average filtering. accuracy algorithm, measured root mean square error, improved 32.28% 23.33%, respectively, over that...
In this study, the combustion system of a dedicated range-extender engine was optimized based on production for fuel economy improvement with use enhanced tumble flow, higher compression ratio, Atkinson cycle and exhaust gas recirculation (EGR). First, shape intake port to improve in-cylinder turbulence enhancement. The computational fluid dynamics (CFD) results showed that compared original port, peak ratio during stroke new is improved by 74.0%, turbulent kinetic energy at spark timing...
In the present study, multidimensional computational fluid dynamics (CFD) simulations were carried out to study mixture formation in a turbocharged port-injection natural gas engine. order achieve robust simulation results, multiple cycle was employed remove inaccuracies of initial conditions setting. First, minimal number cycles required obtain convergent cycle-to-cycle results determined. Based on this, in-cylinder preparation for three typical operating studied. The effects fuel injection...
A novel concept to suppress knock combustion using the targeted fuel injection in a spark-ignition (SI) engine is proposed, which utilizes customized injector inject small portion of total toward end-gas region late compression stroke so that charge cooling effect by vaporization imposed on local mixtures. CFD studies were carried out evaluate effects various strategies processes cooling, air-fuel mixing and 1.2-L gasoline SI with high ratio. prediction model adopting level set G-equation...