Development of Continuous Variable Valve Event and Lift Control System for SI Engine (VEL)

2008 ◽  
Vol 1 (1) ◽  
pp. 949-959 ◽  
Author(s):  
Yoshihiko Yamada ◽  
Kenichi Machida ◽  
Tetsuo Yamazaki
Keyword(s):  
Control System ◽  
Continuous Variable ◽  
Si Engine ◽  
Lift Control ◽  
Variable Valve ◽  
Valve Event

A Continuous Variable Valve Event and Lift Control Device (VEL) for Automotive Engines

2001 ◽  
Author(s):  
Makoto Nakamura ◽  
Seinosuke Hara ◽  
Yoshihiko Yamada ◽  
Keisuke Takeda ◽  
Naoki Okamoto ◽  
...  
Keyword(s):  
Continuous Variable ◽  
Control Device ◽  
Automotive Engines ◽  
Lift Control ◽  
Variable Valve ◽  
Valve Event

A Study of a Continuous Variable Valve Event and Lift (VEL) System

2001 ◽  
Author(s):  
Shinichi Takemura ◽  
Shunichi Aoyama ◽  
Takanobu Sugiyama ◽  
Tsuneyasu Nohara ◽  
Katsuya Moteki ◽  
...  
Keyword(s):  
Continuous Variable ◽  
Variable Valve ◽  
Valve Event

Electronic Continuous Variable Valve Timing for Small SI Engine

2008 ◽  
Author(s):  
C. Menzel ◽  
C. Torresan ◽  
J. Knight ◽  
C. Raines ◽  
D. Sapp ◽  
...  
Keyword(s):  
Continuous Variable ◽  
Variable Valve Timing ◽  
Valve Timing ◽  
Si Engine ◽  
Variable Valve

Development of a Hydraulic Variable Valve Timing Control System with an Optimum Angular Position Locking Mechanism

2012 ◽  
Author(s):  
Takahiro Miura ◽  
Shunichi Aoyama ◽  
Kaoru Onogawa ◽  
Takaya Fujia ◽  
Tetsuro Murata ◽  
...  
Keyword(s):  
Control System ◽  
Angular Position ◽  
Variable Valve Timing ◽  
Valve Timing ◽  
Timing Control ◽  
Locking Mechanism ◽  
Variable Valve

Smooth Pursuit Study on an Eye-Control System for Continuous Variable Adjustment Tasks

2021 ◽  
pp. 1-11
Author(s):  
Yafeng Niu ◽  
Xin Li ◽  
Wenjun Yang ◽  
Chengqi Xue ◽  
Ningyue Peng ◽  
...  
Keyword(s):  
Control System ◽  
Smooth Pursuit ◽  
Continuous Variable

Analysis of Variable Intake Runner Lengths and Intake Valve Open Timings on Engine Performances

2014 ◽  
Vol 663 ◽  
pp. 336-341 ◽  
Author(s):  
Mohd Farid Muhamad Said ◽  
Zulkarnain Abdul Latiff ◽  
Aminuddin Saat ◽  
Mazlan Said ◽  
Shaiful Fadzil Zainal Abidin
Keyword(s):  
Engine Performance ◽  
Intake Manifold ◽  
Intake Valve ◽  
Si Engine ◽  
Engine Simulation ◽  
Engine Model ◽  
Optimum Parameters ◽  
Comparison Results ◽  
Variable Valve ◽  
Engine Development

In this paper, engine simulation tool is used to investigate the effect of variable intake manifold and variable valve timing technologies on the engine performance at full load engine conditions. Here, an engine model of 1.6 litre four cylinders, four stroke spark ignition (SI) engine is constructed using GT-Power software to represent the real engine conditions. This constructed model is then correlated to the experimental data to make sure the accuracy of this model. The comparison results of volumetric efficiency (VE), intake manifold air pressure (MAP), exhaust manifold back pressure (BckPress) and brake specific fuel consumption (BSFC) show very well agreement with the differences of less than 4%. Then this correlated model is used to predict the engine performance at various intake runner lengths (IRL) and various intake valve open (IVO) timings. Design of experiment and optimisation tool are applied to obtain optimum parameters. Here, several configurations of IRL and IVO timing are proposed to give several options during the engine development work. A significant improvement is found at configuration of variable IVO timing and variable IRL compared to fixed IVO timing and fixed IRL.

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