0
Research Papers

Multicylinder HCCI Control With Coupled Valve Actuation Using Model Predictive Control

[+] Author and Article Information
Stephen M. Erlien

e-mail: serlien@stanford.edu

Adam F. Jungkunz

e-mail: jungkunz@stanford.edu

J. Christian Gerdes

e-mail: gerdes@stanford.edu
Dynamic Design Lab,
Department of Mechanical Engineering,
Stanford University,
Stanford, CA 94305

1Corresponding author.

Contributed by the Dynamic Systems Division of ASME for publication in the Journal of Dynamic Systems, Measurement, and Control. Manuscript received August 9, 2012; final manuscript received April 8, 2013; published online July 18, 2013. Assoc. Editor: Gregory Shaver.

J. Dyn. Sys., Meas., Control 135(5), 051018 (Jul 18, 2013) (7 pages) Paper No: DS-12-1255; doi: 10.1115/1.4024299 History: Received August 09, 2012; Revised April 08, 2013

Recent work in homogeneous charge compression ignition (HCCI) engine control has focused on the use of variable valve timing (VVT) as a near term implementation strategy. Valve timing has a significant influence on combustion phasing and can be implemented with cam-based VVT systems already available in production vehicles. However, these systems introduce cylinder coupling via a shared actuator. This paper presents a model predictive control (MPC) framework that explicitly accounts for this intercylinder coupling as a constraint on the system. The execution time step of this MPC controller is shorter than the prediction time step, enabling consideration of a common actuator across otherwise independent systems as the engine cycle progresses. This enables effective use of the cylinder independent actuators to augment the shared actuator in achieving the control objectives. Experiments on a multicylinder HCCI engine test bed validate this approach to handling coupled actuation and illustrate effective use of cylinder independent actuators in response to limited capabilities of the shared actuator.

FIGURES IN THIS ARTICLE
<>
Copyright © 2013 by ASME
Your Session has timed out. Please sign back in to continue.

References

Epping, K., Aceves, S., Bechtold, R., and Dec, J., 2002, “The Potential of HCCI Combustion for High Efficiency and Low Emissions,” SAE Technical Paper No. 2002-01-1923, 06.
Stanglmaier, R., and Roberts, C., 1999, “Homogeneous Charge Compression Ignition (HCCI): Benefits, Compromises, and Future Engine Applications,” SAE Technical Paper No. 1999-01-3682.
Persson, H., Pfeiffer, R., Hultqvist, A., Johansson, B., and Ström, H., 2005, “Cylinder-to-Cylinder and Cycle-to-Cycle Variations at HCCI Operation With Trapped Residuals,” SAE Technical Paper No. 2005-01-0130, 04.
Shaver, G., Roelle, M., Caton, P., Kaahaaina, N., Ravi, N., Hathout, J.-P., Ahmed, J., Kojic, A., Park, S., Edwards, C., and Gerdes, J., 2005, “A Physics-Based Approach to the Control of Homogeneous Charge Compression Ignition Engines With Variable Valve Actuation,” Int. J. Engine Res., 6(4), pp. 361–375. [CrossRef]
Bengtsson, J., Strandh, P., Johansson, R., Tunestal, P., and Johansson, B., 2006, “Model Predictive Control of Homogeneous Charge Compression Ignition (HCCI) Engine Dynamics,” IEEE International Conference on Control Applications, pp. 1675–1680.
Kang, J.-M., Chang, C.-F., Chen, J.-S., and Chang, M.-F., 2009, “Concept and Implementation of a Robust HCCI Engine Controller,” SAE Technical Paper No. 2009-01-1131.
Widd, A., Ekholm, K., Tunestal, P., and Johansson, R., 2012, “Physics-Based Model Predictive Control of HCCI Combustion Phasing Using Fast Thermal Management and VVA,” IEEE Trans. Control Syst. Technol., 20(3), pp. 688–699. [CrossRef]
Ravi, N., Liao, H.-H., Jungkunz, A. F., Chang, C.-F., Song, H. H., and Gerdes, J. C., 2012, “Modeling and Control of an Exhaust Recompression HCCI Engine Using Split Injection,” J. Dyn. Syst., Meas., Control, 134(1), p. 011016. [CrossRef]
Hyvonen, J., Haraldsson, G., and Johansson, B., 2004, “Balancing Cylinder-to-Cylinder Variations in a Multi-Cylinder VCR-HCCI Engine,” SAE Technical Paper No. 2004-01-1897, 06.
Widd, A., Liao, H.-H., Gerdes, J. C., Tunestål, P., and Johansson, R., 2011, “Control of Exhaust Recompression HCCI Using Hybrid Model Predictive Control,” American Control Conference, pp. 420–425.
Liao, H.-H., Ravi, N., Jungkunz, A., Kang, J.-M., and Gerdes, J., 2010, “Representing Recompression HCCI Dynamics With a Switching Linear Model,” American Control Conference (ACC), pp. 3803–3808.
Sinnamon, J., 2007, “Co-Simulation Analysis of Transient Response and Control for Engines With Variable Valvetrains,” SAE Technical Paper No. 2007-01-1283, 04.
Sellnau, M., Matekunas, F., Battiston, P., Chang, C.-F., and Lancaster, D., 2000, “Cylinder-Pressure-Based Engine Control Using Pressure-Ratio-Management and Low-Cost Non-Intrusive Cylinder Pressure Sensors,” SAE Technical Paper No. 2000-01-0932, 01.
Ravi, N., Liao, H.-H., Jungkunz, A. F., Widd, A., and Gerdes, J. C., 2012, “Model Predictive Control of HCCI Using Variable Valve Actuation and Fuel Injection,” Control Eng. Pract., 20(4), pp. 421–430. [CrossRef]
Pannocchia, G., and Bemporad, A., 2007, “Combined Design of Disturbance Model and Observer for Offset-Free Model Predictive Control,” IEEE Trans. Autom. Control, 52(6), pp. 1048–1053. [CrossRef]
Mattingley, J., Wang, Y., and Boyd, S., 2010, “Code Generation for Receding Horizon Control,” 2010 IEEE International Symposium on Computer-Aided Control System Design (CACSD), pp. 985–992.
Mattingley, J., and Boyd, S., 2012, “CVXGEN: A Code Generator for Embedded Convex Optimization,” Optim. Eng., 13(1), pp. 1–27. [CrossRef]
Liao, H., Roelle, M., Chen, J.-S., Park, S., and Gerdes, J., 2011, “Implementation and Analysis of a Repetitive Controller for an Electro-Hydraulic Engine Valve System,” IEEE Trans. Control Syst. Technol., 19(5), pp. 1102–1113. [CrossRef]

Figures

Grahic Jump Location
Fig. 2

Cylinder volume as a function of CAD. Shaded region indicates typical exhaust valve closing timing, θEVC, for recompression HCCI.

Grahic Jump Location
Fig. 3

Controller block diagram

Grahic Jump Location
Fig. 4

Experimental results of cylinder variation with identical inputs

Grahic Jump Location
Fig. 5

Experimental results of closed loop behavior with n = 2 cylinders and a fast cam slew rate of 300 deg/s

Grahic Jump Location
Fig. 6

Experimental results of closed loop behavior with n = 2 cylinders and a slow cam slew rate of 50 deg/s

Grahic Jump Location
Fig. 7

Experimental results with n = 4 cylinders and a moderate cam slew rate of 200 deg/s. Controller turned on at 10 s. Cylinder combustion order is 1 3 4 2.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In