Electronic Continuous Variable Valve Timing for Small SI Engine

Menzel, C.; Torresan, C.; Knight, J.; Raines, C.; Sapp, Dona; Patel, M.; Miles, Richard; Miles, N.; Peng, Zhi Jun

doi:10.4271/2008-01-1778

Cited by 1 publication

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The actuator, then, uses hydraulic system [12] or electromagnetic motor [13,14]. Also electromagnetic actuators are used [15][16][17][18][19] however, they are still not applicable since they require a lot of power to open and close. Similar work has been conducted by Vu and Pyung [20] to develop a new hybrid magnet engine valve actuator using shorted turn for fast initial response since the electromagnetic actuator using solenoids is the most advance system to provide the most flexibility to valve timing, but it has critical drawback of high power consumption [20].…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Analysis of Electromagnetic Variable Valve Timing Control Systems for Improvement of Spark Ignition Engine Performance

A¹

2014

Adv Automob Eng

View full text Add to dashboard Cite

The objective of this paper is to meet the requirements of higher torque values at all engine speeds. This can be achieved by varying the valve timing automatically using a new variable valve timing system (VVT), which gives continuously variable valve actuation at all engine speeds. A model engine is designed using dimensional analysis methods and then implemented to verify the proposed control system. Moreover, microcontroller and computeraided control systems are constructed and used to modify the variable valve timing control in the laboratory. In this paper, a mathematical model of variable valve timing is developed to obtain the best volumetric efficiency with optimum valve timing at different engine speeds. From this model, the look-up table is created at all ranges of the engine speed. A single cylinder engine is used to estimate engine performance characteristics for conventional camshaft. In addition, a model engine is designed and constructed to apply the Variable Valve Timing control system. The investigations show that the system is flexible throughout the entire range of operation speeds and is able to alter valve timing concerning both valve opening and closing. The ability of valve opening and closing can be realized with rates higher than these of the conventional timing mechanisms.

show abstract

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Analysis of Electromagnetic Variable Valve Timing Control Systems for Improvement of Spark Ignition Engine Performance

A¹

2014

Adv Automob Eng

View full text Add to dashboard Cite

show abstract

Electronic Continuous Variable Valve Timing for Small SI Engine

Cited by 1 publication

References 5 publications

Theoretical and Experimental Analysis of Electromagnetic Variable Valve Timing Control Systems for Improvement of Spark Ignition Engine Performance

Theoretical and Experimental Analysis of Electromagnetic Variable Valve Timing Control Systems for Improvement of Spark Ignition Engine Performance

Contact Info

Product

Resources

About