scholarly journals Variable Valve Timing Scheduling in a 4-Stroke Internal Combustion Cylinder Utilizing Artificial Neural Networks

2017 ◽  
Vol 11 (3) ◽  
pp. 114-121 ◽  
Author(s):  
Sepehr Bapiri ◽  
Omid Chaghaneh ◽  
Hossein Ghomashi
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Internal Combustion ◽  
Variable Valve Timing ◽  
Valve Timing ◽  
Artificial Neural ◽  
Variable Valve

Study on Non-Axisymmetric 3D Curved Surface Turning by Driven-Type Rotary Tool Synchronized With Spindle

2021 ◽  
Author(s):  
Akane Ishizuka ◽  
Narimasa Ueda ◽  
Yoshitaka Morimoto ◽  
Akio Hayashi ◽  
Yoshiyuki Kaneko ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Curved Surface ◽  
Variable Valve Timing ◽  
Valve Timing ◽  
Cam Mechanism ◽  
Rotary Tool ◽  
Variable Valve ◽  
New System

Abstract Since shifting to electric vehicles as a countermeasure against global warming is not always easy to complete, the hybrid car has been considered as another possible solution. However, based on the calculation of total CO2 emissions, all hybrid cars which will constitute 90% of all cars are expected to be equipped with an internal combustion engine even after 2030. Therefore, further efficiency improvement of the internal combustion engine is necessary. One of the key factors is the variable valve timing and variable lift with the 3D cam mechanism. Since conventional technology uses a complicated link mechanism and servo motor control, this leads a problem to set into small cars or motorcycles because they cannot afford to install the variable valve timing and variable lift with cam mechanism. To solve this problem, a cam shape with a three-dimensional curved surface has been proposed. In order to create this shape, the machining method for non-axisymmetric curved surface turning (NACS-Turning) is required. To build the new system, our research group has proposed a new machining method using a driven type rotary tool and a linear motor driven moving table to enable to achieve NACS-Turning. In this new system, a new tool rotation axis (B axis) is adopted to synchronize its rotational position with the rotational position of the spindle (C axis) holding the workpiece, the X1-, X2-, and Z-Axis positions in total. In this paper, the new hardware configuration is proposed to overcome the present machining accuracy.

Artificial neural-network based modeling of variable valve-timing in a spark-ignition engine

2005 ◽  
Vol 81 (2) ◽  
pp. 187-197 ◽  
Author(s):  
Mustafa Gölcü ◽  
Yakup Sekmen ◽  
Perihan Erduranlı ◽  
M. Sahir Salman
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Variable Valve Timing ◽  
Valve Timing ◽  
Artificial Neural ◽  
Variable Valve

Effects of Supercharging, EGR and Variable Valve Timing on Power and Emissions of Hydrogen Internal Combustion Engines

2008 ◽  
Vol 1 (1) ◽  
pp. 647-656 ◽  
Author(s):  
Sebastian Verhelst ◽  
Jannick De Landtsheere ◽  
Frederik De Smet ◽  
Christophe Billiouw ◽  
Arne Trenson ◽  
...  
Keyword(s):  
Internal Combustion Engines ◽  
Internal Combustion ◽  
Variable Valve Timing ◽  
Combustion Engines ◽  
Valve Timing ◽  
Variable Valve

Study of the Variable Valve Timing Effects on Combustion Quality and Fuel Consumption of an Internal Combustion Engine

2020 ◽  
Author(s):  
Augusto César Teixeira Malaquias ◽  
Nilton Antonio Diniz Netto ◽  
José Guilherme Coelho Baêta ◽  
Alysson Fernandes Teixeira ◽  
Sérgio Augusto Passos Costa
Keyword(s):  
Internal Combustion Engine ◽  
Fuel Consumption ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Variable Valve Timing ◽  
Valve Timing ◽  
Timing Effects ◽  
Variable Valve
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