IJE TRANSACTIONS A: Basics Vol. 29, No. 4 (April 2016) 473-481   

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S. Binbin, G. Song and L. Bo
( Received: December 24, 2015 – Accepted: April 14, 2016 )

Abstract    In this paper, the effect of the Intake Valve Deactivation (IVDA) on engine performance is investigated in detail. Based on an optimization platform with Genetic Algorithm (GA) and engine thermodynamic model, the characteristics of the engine volumetric efficiency and pumping loss were studied under the cam-drive, Single Intake Valve (SIV) and Dual Intake Valves (DIV) operating modes, and the effect of the IVDA on the engine fuel economy was revealed with taking the power consumption of the Electromagnetic Actuated Valvetrain (EAVT) system into consideration. Then, switch rules for the SIV and DIV mode was proposed, and the switching boundary conditions between them were confirmed. Finally, the optimal intake valve close timings for the EAVT system were obtained. Results show that, under the low speed conditions, the SIV mode has little influence on the engine volumetric efficiency, while within the high speed conditions the effect of the IVDA on the volumetric efficiency is significant; compared with the traditional cam-drive valvetrain, the pumping loss of the EAVT engine decreases significantly and shows unique characteristics due to the use of the EIVC strategy; with the use of the IVDA scheme, the energy consumption of the EAVT system reduces, but the engine pumping loss increases in the meantime, both balance their influence on the engine fuel economy. In general, the IVDA scheme is preferred if the engine volumetric efficiency can be ensured, otherwise, the DIV mode takes priority over the SIV mode to maintain the engine power performance.


Keywords    Camless valvetrain, Electromagnetic actuated valvetrain, Intake valve deactivation, Early intake valve closing


چکیده    در این مقاله، اثر غیرفعال کردن شیر ورودی (IVDA) بر عملکرد موتور با جزئیات مورد بررسی قرار گرفته است. بر اساس پلت فرم بهینه سازی با الگوریتم ژنتیک (GA) و مدل ترمودینامیکی موتور، ویژگی های بازده حجمی موتور و اتلاف پمپ تحت حالت های رانش میله، سوپاپ مکش تنها (SIV) و مصرف دو سوپاپ (DIV) مورد بررسی قرار گرفت، و اثر IVDA بر اقتصاد سوخت موتور با در نظر گرفتن مصرف برق سیستم های الکترومغناطیسی محرک مجموعه سوپاپ (EAVT) بررسی شد. سپس، قوانین سوئیچ برای حالت SIV و DIV مطرح شد و تعویض شرایط مرزی بین آنها تایید شد. در نهایت، زمان بهینه بستن شیر ورودی برای سیستم EAVT به دست آمد. نتایج نشان می دهد که تحت شرایط سرعت کم ، حالت SIV تاثیر کمی بر روی راندمان حجمی موتور دارد، در حالی که در شرایط سرعت بالا اثر IVDA در راندمان حجمی قابل توجه است. در مقایسه با مجموعه سوپاپ رانش میله سنتی، اتلاف پمپ موتور EAVT به طور قابل توجهی کاهش می یابد و ویژگی های منحصر به فردی را با توجه به استفاده از استراتژیEIVC نشان می دهد؛ با استفاده از این طرحIVDA ، مصرف انرژی سیستم EAVT کاهش می یابد، اما اتلاف موتور پمپاژ افزایش می یابد و هر دو اثر خود را روی اقتصاد سوخت موتور متعادل می کنند. به طور کلی، طرح IVDA در صورتی که راندمان حجمی موتور تضمین شود ترجیح داده می شود، در غیر این صورت، حالت DIV اولویت بیشتری نسبت به حالت SIVبرای حفظ عملکرد قدرت موتوردارد.


1.     L. Bo, G.W. and Binbin, S., "Benefits of the electromagnetic actuated valve train in gasoline engine application", International Journal of Engineering,  Vol. 28, No. 11, (2015), 1656-1662.

2.     Abdolalipouradl, M. and Khalilarya, S., "The effect of exhaust gas recirculation on performance and emissions of a si engine fuelled with ethanol-gasoline blends (research note)", International Journal of Engineering-Transactions A: Basics,  Vol. 28, No. 1, (2014).

1           3.      Shiao, Y. and Dat, L.V., "Actuator control for a new hybrid electromagnetic valvetrain in spark ignition engines", Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering,  Vol. 227, No. 6, (2013), 789-799.

4.     Mohebbi, A., Jafarmadar, S. and Pashae, J., "Experimental studying of the effect of egr distribution on the combustion, emissions and performance in a turbocharged di diesel engine", International Journal of Engineering,  Vol. 26, No. 1, (2013), 73-82.

5.     Gillella, P.K., Song, X. and Sun, Z., "Time-varying internal model-based control of a camless engine valve actuation system", Control Systems Technology, IEEE Transactions on,  Vol. 22, No. 4, (2014), 1498-1510.

6.     Pournazeri, M., Khajepour, A. and Fazeli, A., "An efficient lift control technique in electro-hydraulic camless valvetrain using variable speed hydraulic pump", SAE Int. J. Engines,  Vol. 4, No. 1, (2011), 1247-1259.

7.     Aimin, D., Chuanchuan, C. and Yajie, Z., "Research of electro-hydraulic camless valvetrain system based on amesim", in Service Sciences (ICSS), International Conference on, IEEE., (2014), 66-73.

8.     Sun, Z. and Kuo, T.-W., "Transient control of electro-hydraulic fully flexible engine valve actuation system", Control Systems Technology, IEEE Transactions on,  Vol. 18, No. 3, (2010), 613-621.

9.     Paimon, A.S., Jazair, W. and Rajoo, S., "Parametric study of cylinder deactivation and valve deactivation for unthrottled operation", in Advanced Materials Research, Trans Tech Publ. Vol. 614, (2012), 525-528.

10.   Grover, R.O., Chang, J., Masters, E.R., Najt, P.M. and Singh, A., "The effect of intake valve deactivation on lean stratified charge combustion at an idling condition of a spark ignition direct injection engine", Journal of Engineering for Gas Turbines and Power,  Vol. 134, No. 9, (2012).

11.   Boretti, A. and Scalco, J., Piston and valve deactivation for improved part load performances of internal combustion engines., SAE Technical Paper, (2011).

12.   Kim, J., Kim, H., Yoon, S., Sa, S. and Kim, W., "Effect of valve timing and lift on flow and mixing characteristics of a cai engine", International journal of automotive technology,  Vol. 8, No. 6, (2007), 687-696.

13.   Moore, W., Foster, M., Lai, M.-C., Xie, X.-B., Zheng, Y. and Matsumoto, A., "Charge motion benefits of valve deactivation to reduce fuel consumption and emissions in a gdi, vva engine", SAE Technical paper,  Vol. 2, (2011), 112-125.

14.   Kuruppu, C., Pesiridis, A. and Rajoo, S., "Investigation of cylinder deactivation and variable valve actuation on gasoline engine performance",  (2014), 245-257.

15.   Tian, G.M. and Chang, S.Q., "Measurement of gas movement intensity during engine intake and compression process", Vehicle Engine,  Vol., No. 5, (2011), 38-42.

16.   Liu, L. and Chang, S., "Motion control of an electromagnetic valve actuator based on the inverse system method", Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering,  Vol. 226, No. 1, (2012), 85-93.

17.   Binbin, S., Siqin, C. and Liang, L., "A research on internal exhaust gas recirculation by using a control strategy of intake valve secondary-opening", Automotive Engineering,  Vol. 2, (2014).

18.   Poulos, S.G. and Heywood, J.B., The effect of chamber geometry on spark-ignition engine combustion. 1983, SAE Technical Paper.

19.   Patton, K.J., Nitschke, R.G. and Heywood, J.B., Development and evaluation of a friction model for spark-ignition engines. 1989, Warrendale, PA; Society of Automotive Engineers.

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