This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fast Engine Torque Variation Compensation for HEVs Using Permanent Magnet Synchronous Motor and Explicit MPC
Technical Paper
2021-01-0718
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
This research proposes to leverage the fast response time of Permanent Magnet Synchronous Motors (PMSMs) to compensate for crank angle resolved engine torque variations caused by cycle-by-cycle combustion variations. This method reduces powertrain vibration and enables engine calibrations with high combustion variation that produces low fuel consumption. This research integrates a Field Oriented Control (FOC) strategy with an Explicit Model Predictive Control (EMPC) to trace previewed current references. The previewed current references are computed from the engine torque difference between predicted nominal operation and the measured torque output. This research reveals that the MPC can track a d-q current reference without overshoot, rendering current magnitude constraints unnecessary in the MPC formulation. A control rate penalty is used to tune the aggressiveness of transient voltage demand and meet with the DC voltage limit. The proposed MPC formulation significantly improves computational efficiency and allows for an increased preview horizon length. Simulation results show that the proposed EMPC based PMSM control reduces electric motor torque response time from 45 ms, for a baseline FOC strategy, to less than 5 ms. A case study is performed, showing the proposed PMSM control strategy can completely compensate 4.8% Coefficients of Variation of IMEP (COV of IMEP) from the engine while the baseline FOC control strategy failed to respond. The investigated engine operating condition also demonstrates a 12.7% fuel economy improvement compared to a baseline that is stoichiometric without Exhaust Gas Recirculation (EGR) dilution. The electrical system energy losses caused by the EMPC strategy resulted in a 2.3% loss of equivalent engine efficiency, but a net fuel economy gain of 10.4% is still achieved from this case study.
Recommended Content
Authors
Topic
Citation
Zhu, Q., Ozkan, G., Badr, P., Parvini, Y. et al., "Fast Engine Torque Variation Compensation for HEVs Using Permanent Magnet Synchronous Motor and Explicit MPC," SAE Technical Paper 2021-01-0718, 2021, https://doi.org/10.4271/2021-01-0718.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 |
Also In
References
- Zhu , D. and Pritchard , E. NCSU Year Three Final Technical Report SAE Technical Paper 2014-01-2907 2014 https://doi.org/10.4271/2014-01-2907
- Gao , G. , Yang , F. , Chen , L. , Yang , Y. , and Ouyang , M. Transient Control of Low-Temperature Premixed Combustion Using ISG Motor Dynamic Torque Compensation Presented at 2012 IEEE Vehicle Power and Propulsion Conference Oct. 9-12 2012 Seoul, Korea 10.1109/VPPC.2012.6422729
- Choi , W. , Kang , J. , Hong , S. , and Kim , H. Development of a Control Algorithm to Reduce Torque Variation for the Dual Mode HEV during Mode Change Presented at 2011 IEEE Vehicle Power and Propulsion Conference Sep. 6-9 2011 Chicago, IL, USA 10.1109/VPPC.2011.6043136
- Rollinger , J. , Zaremba , A. 2010
- Tabata , M. , Yamamoto , T. , and Fukube , T. Improving Nox and Fuel Economy for Mixture Injected SI Engine with EGR SAE Technical Paper 950684 1995 https://doi.org/10.4271/950684
- Mendez , S. and Thirouard , B. Using Multiple Injection Strategies in Diesel Combustion: Potential to Improve Emissions, Noise and Fuel Economy Tradeoff in Low CR Engines SAE International Journal of Fuels and Lubricants 1 1 662 674 2009
- Dadam , S.R. , Jentz , R. , Lenzen , T. , and Meissner , H. Diagnostic Evaluation of Exhaust Gas Recirculation (EGR) System on Gasoline Electric Hybrid Vehicle SAE Technical Paper 2020-01-0902 2020 https://doi.org/10.4271/2020-01-0902
- Le-Huy , H. Comparison of Field Oriented Control and Direct Torque Control for Induction Motor Drives Presented at 1999 IEEE Industry Applications Conference Oct. 3-7 1999 Phoenix, AZ, USA 10.1109/IAS.1999.801662
- Xie , W. , Wang , X. , Wang , F. , Xu , W. et al. Finite-Control-Set Model Predictive Torque Control with a Deadbeat Solution for PMSM Drives IEEE Transactions on Industrial Electronics 62 9 5402 5410 2015 10.1109/TIE.2015.2410767
- Preindl , M. and Bolognani , S. Model Predictive Direct Speed Control with Finite Control Set of PMSM Drive Systems IEEE Transactions on Power Electronics 28 2 1007 1015 2013 10.1109/TPEL.2012.2204277
- Geyer , T. , Beccuti , G. , Papafotiou , G. , and Morari , M. Model Predictive Direct Torque Control of Permanent Magnet Synchronous Motors Presented at 2010 IEEE Energy Conversion Congress and Exposition Sep. 12-16 2010 Atlanta, GA, USA 10.1109/ECCE.2010.5618044
- Lin-Shi , X. , Morel , F. , Llor , A.M. , Allard , B. , and Retif , J.M. Implementation of Hybrid Control for Motor Drives IEEE Trans. Ind. Electron 54 4 1946 1952 2007 10.1109/TIE.2007.898303
- Townsend , C.D. , Summers , T.J. , and Betz , R.E. Multigoal Heuristic Model Predictive Control Technique Applied to a Cascaded h-Bridge Statcom IEEE Trans. Power Electron. 27 3 1191 1200 2012 10.1109/TPEL.2011.2165854
- Shen , Z. , Chang , X. , Wang , W. , Tan , X. et al. Predictive Digital Current Control of Single-Inductor Multiple-Output Converters in CCM with Low Cross Regulation IEEE Trans. Power Electron. 27 4 1917 1925 2012 10.1109/TPEL.2011.2168241
- Ferreau , H.J. , Bock , H.G. , and Diehl , M. An Online Active Set Strategy to Overcome the Limitations of Explicit MPC Int. J Robust Nonlinear Control 18 816 830 2007
- Goncalves , A.S. A Primal-Dual Method for Quadratic Programming with Bounded Variables Numerical Methods for Nonlinear Optimization London Academic Press 1972 255 263
- Bemporad , A. , Morari , M. , Dua , V. , and Pistikopoulos , E. The Explicit Linear Quadratic Regulator for Constrained Systems Automatica 38 1 3 20 2002 10.1016/S0005-1098(01)00174-1
- Mariéthoz , S. , Domahidi , A. , and Morari , M. Sensorless Explicit Model Predictive Control of Permanent Magnet Synchronous Motors Presented at 2009 IEEE International Electric Machines and Drives Conference May 3-6 2009 Miami, FL, USA 10.1109/IEMDC.2009.5075363
- Jia , C. , Wang , X. , Liang , Y. , and Zhou , K. Robust Current Controller for IPMSM Drives Based on Explicit Model Predictive Control with Online Disturbance Observer IEEE Access 7 45898 45910 2019 10.1109/ACCESS.2019.2908383
- Yuntao , S. , Xiang , X. , Yuan , Z. , Hengjie , Z. , et al. Design of Explicit Model Predictive Control for PMSM Drive Systems Presented at 2017 Chinese Control and Decision Conference May 28-30 2017 Chongqing, China 10.1109/CCDC.2017.7978521
- Zhu , Q. , Prucka , R. , Wang , S. , Prucka , M. , and Dourra , H. Model-Based Optimal Combustion Phasing Control Strategy for Spark Ignition Engines SAE Int. J. Engines 9 2 1170 1179 2016 https://doi.org/10.4271/2016-01-0818
- Na , J. , Chen , A. , Herrmann , G. , Burke , R. , and Brace , C. Vehicle Engine Torque Estimation via Unknown Input Observer and Adaptive Parameter Estimation IEEE Transactions on Vehicular Technology 67 1 2018 10.1109/TVT.2017.2737440
- Lu , D. and Kar , N.C. A Review of Flux-Weakening Control in Permanent Magnet Synchronous Machines 2010 IEEE Vehicle Power and Propulsion Conference Lille 2010 1 6 10.1109/VPPC.2010.5728986