Combustion Control Technologies for Direct Injection SI Engine

Kume, T.; Iwamoto, Y.; Iida, Kazumasa; Murakami, Motoichi; Akishino, Katsuo; Ando, H.

doi:10.4271/960600

Cited by 231 publications

(62 citation statements)

References 3 publications

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“…The fuel is injected early during the intake stroke so more time is available for air-fuel mixture formation. During this mode of operations, the engine operates with a near stoichiometric mixture which, in turn, decreases NO x emissions, and thus EGR is not used [3][4][5][6]. The main issue is to achieve these kinds of mixture modes with different in-cylinder flow structures under these operating conditions, which control the mixture formation.…”

Section: Introductionmentioning

confidence: 99%

Characterization of the Inlet Port Flow under Steady-State Conditions Using PIV and POD

et al. 2017

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Abstract:The current study demonstrates an experimental investigation of the tumble flow structures using Particle Image Velocimetry (PIV) under steady-state conditions considering the central vertical tumble plane. The experiments were carried out on a four-valve, pent-roof Gasoline Direct Injection (GDI) engine head at different valve lifts and with a pressure difference of 150 mmH 2 O across the intake valves. Furthermore, the Proper Orthogonal Decomposition (POD) analytical technique was applied to PIV-measured velocity vector maps to characterize the flow structures at various valve lifts, and hence the different rig tumble values. The results show that at low valve lifts (1 to 5 mm), 48.9 to 46.6% of the flow energy is concentrated in the large (mode 1) eddies with only 8.4 to 11.46% in mode 2 and 7.2 to 7.5 in mode 3. At high valve lifts, it can be clearly seen that some of the energy in the large eddies of mode 1 is transferred to the smaller flow structures of modes 2 and 3. This can be clearly seen at valve lift 10 mm where the values of the flow energy were 40.6%, 17.3%, and 8.0% for modes 1, 2, and 3, respectively.

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Section: Introductionmentioning

confidence: 99%

Characterization of the Inlet Port Flow under Steady-State Conditions Using PIV and POD

et al. 2017

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“…Gasoline direct injection engine (GDI) combines the best features of DI diesel and PFI gasoline engine. Theoretically it offers better fuel economy than diesel engines at partial loads and better engine performance than port fuel injection at full load [4,5]. GDI overcomes limitation present in the PFI, it reduces pumping losses, heat losses, cold start problem, carbon dioxide emissions, increases volumetric efficiency and permits to use lower octane fuel [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Investigations on High Performance and Low Emissions GDI Engine used in Agricultural Applications in India

Chincholkar¹,

Bhiogade²,

Suryawanshi³

2017

IOSR JMCE

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“…Fuzzy-logic aims to provide an appro ximate but effective means of describing the behavior of systems that are not easy to describe precisely, and which a re complex o r ill-defined [7][8][9][10][11]22]. It is based on the assumption that, in contrast to Boolean logic, a statement can be partially true (or false) [12][13][14][15][16][17][18][19][20][21][23][24][25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Robust Fuzzy PD Method with Parallel Computed Fuel Ratio Estimation Applied to Automotive Engine

Piltan¹,

ShahryarZadeh²,

Mansoorzadeh³

et al. 2013

IJISA

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Abstract-Both fuzzy logic and computed fuel rat io can compensate the steady-state error o f proportionalderivative (PD) method. This paper presents parallel computed fuel rat io co mpensation for fu zzy plus PID control management with application to internal combustion (IC) engine. The asymptotic stability of fuzzy plus PID control methodology with first-order computed fuel ratio estimation in the parallel structure is proven. For the parallel structure, the fin ite time convergence with a super-twisting second-order slidingmode is guaranteed.

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Combustion Control Technologies for Direct Injection SI Engine

Cited by 231 publications

References 3 publications

Characterization of the Inlet Port Flow under Steady-State Conditions Using PIV and POD

Characterization of the Inlet Port Flow under Steady-State Conditions Using PIV and POD

Investigations on High Performance and Low Emissions GDI Engine used in Agricultural Applications in India

Robust Fuzzy PD Method with Parallel Computed Fuel Ratio Estimation Applied to Automotive Engine

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