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Engine On/Off Optimization for an xHEV during Charge Sustaining Operation on Real World Driving Routes Using Connectivity Data
Technical Paper
2021-01-0433
ISSN: 0148-7191, e-ISSN: 2688-3627
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SAE WCX Digital Summit
Language:
English
Abstract
This paper presents a methodology that optimizes the periods of engine operation on a selected route for a Plug-in Hybrid Electric Vehicle (PHEV) or Hybrid Electric Vehicle (HEV) using Connected Vehicle data to minimize energy consumption. The study was conducted using a Reduced-Order Powertrain model of second-generation Chevrolet Volt. The method utilizes the Backward Induction Dynamic Programming algorithm to come up with an optimal control mode matrix of engine operation along the selected route for various battery states of charge. The objective of this method is to make use of Vehicle Connectivity to minimize the energy utilization of an HEV by using the speed and elevation profile of a selected route transmitted to the vehicle via V2X communication systems. The study focuses on reducing the energy consumption of an xHEV (mostly calibrated for EPA Drive Cycles), on real world driving routes having undulating road profiles with varying speeds for which the vehicles have not been calibrated. The energy savings from the optimizer is dependent on the selected driving route. The energy savings on real world drive routes ranges from 4.5% on an 80 km drive route (mostly highway) with minimal vehicle stops to 11.1% on a 20 km long Urban Drive cycle with a number of vehicle stops. From analyzing around 70 Real-World drive cycles, the optimizer predicts an average energy savings of 7.4% in real world driving scenarios. While on the EPA drive cycles, the energy savings ranges from 11.2% on the UDDS, urban driving scenario with a number of stops, to -1.1% on the highly aggressive US06 drive cycle with fewer stops.
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Citation
Santhosh, P. and Robinette, D., "Engine On/Off Optimization for an xHEV during Charge Sustaining Operation on Real World Driving Routes Using Connectivity Data," SAE Technical Paper 2021-01-0433, 2021, https://doi.org/10.4271/2021-01-0433.Data Sets - Support Documents
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References
- Zhang , F. , Hu , X. , Langari , R. , and Cao , D. Energy Management Strategies of Connected HEVs and PHEVs: Recent Progress and Outlook Progress in Energy and Combustion Science 73 235 256 2019
- Hovgard , M. , Jonsson , O. , Murgovski , N. , Sanfridson , M. , and Fredriksson , J. Cooperative Energy Management of Electrified Vehicles on Hilly Roads Control Engineering Practice 73 66 78 2018
- Stroe , N. , Olaru , S. , Colin , G. , Ben-Cherif , K. , and Chamaillard , Y. Time-Varying MPC-Based Energy Management for HEV Including Engine Stop Start 2016 20th International Conference on System Theory, Control and Computing (ICSTCC) 790 795 2016
- Fu , J. , Song , S. , Fu , Z. , and Ma , J. Real-Time Implementation of Optimal Control Considering Gear Shifting and Engine Starting for Parallel Hybrid Electric Vehicle Based on Dynamic Programming Optimal Control Applications and Methods 39 2 757 773 2018
- Lai , L. and Ehsani , M. Dynamic Programming Optimized Constrained Engine On and Off Control Strategy for Parallel HEV 2013 IEEE Vehicle Power and Propulsion Conference (VPPC) 1 5 2013
- Jeong , J. , Kim , N. , Lim , W. , Park , Y.-I. et al. Optimization of Power Management among an Engine, Battery and Ultra-Capacitor for a Series HEV: A Dynamic Programming Application International Journal of Automotive Technology 18 5 891 900 2017
- Rama , N. , Wang , H. , Orlando , J. , Robinette , D. , and Chen , B. Route-Optimized Energy Management of Connected and Automated Multi-Mode Plug-In Hybrid Electric Vehicle Using Dynamic Programming SAE Technical Paper 2019-01-1209 2019 https://doi.org/10.4271/2019-01-1209
- https://www.epa.gov/vehicle-and-fuel-emissions-testing/dynamometer-drive-schedules 2017
- Robinette , D. , Kostreva , E. , Krisztian , A. , Lackey , A. et al. PHEV Real World Driving Cycle Energy and Fuel and Consumption Reduction Potential for Connected and Automated Vehicles SAE Technical Paper 2019-01-0307 2019 https://doi.org/10.4271/2019-01-0307
- Jurkovic , S. , Rahman , K. , Patel , N. , and Savagian , P. Next Generation Voltec Electric Machines; Design and Optimization for Performance and Rare-Earth Mitigation SAE International Journal of Alternative Powertrains 4 2 336 342 2015 https://doi.org/10.4271/2015-01-1208
- Conlon , B.M. , Blohm , T. , Harpster , M. , Holmes , A. et al. The Next Generation “Voltec” Extended Range EV Propulsion System SAE International Journal of Alternative Powertrains 4 2 248 259 2015 https://doi.org/10.4271/2015-01-1152
- Zhang , X. , Li , S.E. , Peng , H. , and Sun , J. Design of Multimode Power-Split Hybrid Vehicles—A Case Study on the Voltec Powertrain System IEEE Transactions on Vehicular Technology 65 6 4790 4801 2016
- Jeong , J. , Choi , S. , Kim , N. , Lee , H. et al. Model Validation of the Chevrolet Volt 2016 SAE Technical Paper 2018-01-0420 2018 https://doi.org/10.4271/2018-01-0420
- Kim , N. , Choi , S. , Jeong , J. , Vijayagopal , R. et al. Vehicle Level Control Analysis for Voltec Powertrain World Electric Vehicle Journal 9 2 29 2018
- Algarny , K. , Abdelrahman , A.S. , and Youssef , M. A Novel Platform for Power Train Model of Electric Cars with Experimental Validation Using Real-Time Hardware in-the-Loop (HIL): A Case Study of GM Chevrolet Volt 2nd Generation 2018 IEEE Applied Power Electronics Conference and Exposition (APEC) 3510 3516 2018
- Geng , P. , Furey , R. , and Konzack , A. May 2010
- Rama , N. and Robinette , D. Computationally Efficient Reduced-Order Powertrain Model of a Multi-Mode Plug-in Hybrid Electric Vehicle for Connected and Automated Vehicles SAE Technical Paper 2019-01-1210 2019 https://doi.org/10.4271/2019-01-1210
- Bellman , R.E. 1957
- Rezaei , A. and Burl , J.B. Effects of Time Horizon on Model Predictive Control for Hybrid Electric Vehicles IFAC-PapersOnLine 48 15) 252 256 2015