This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Optimal Control for Ensured Drivability of Paralell HEVs/PHEVs during Mode Transition
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 01, 2014 by SAE International in United States
Annotation ability available
Plug-in hybrid electric vehicles (PHEVs) with post-transmission parallel configuration attracted considerable attention due to their capacity to operate in either electric vehicle (EV) mode or hybrid electric vehicle (HEV) mode. Meanwhile, the added flexibility and multiple operation modes add additional challenges to vehicle control with acceptable drivability, particularly during the mode transition from the EV and HEV, since proper control is needed for the internal combustion engine (ICE), motor and coupling device to achieve smooth and fast transition, under various vehicle operation constraints such as mode-transition duration, vehicle acceleration fluctuation and friction loss of the dry clutch. In addition, the engagement of dry clutch features torque discontinuity due to slip-stick phenomenon and the dynamic behavior of the ICE further increases the nonlinearity of the powertrain system. This research introduces a method for identifying the theoretically optimal drivability during mode transition and feasible control schemes to effectively coordinate different powertrain components and achieve desirable drivability without violating vehicle operation constraints. Firstly, a post-transmission parallel PHEV is modeled using MATLAB Simulink and US DOE-ANL's AUTONOMIE, and partially verified using a research prototype PHEV-EcoCAR, developed on the GM Chevrolet Malibu platform at University of Victoria. Secondly, the problem of optimal control for drivability is formulated, considering the vehicle operation constraints. Dynamic Programming (DP) is applied to the Simulink powertrain model to identify the optimal control solutions. Simulation results for the studied vehicle are presented and analyzed to illustrate the new approach and its advantages.
CitationWu, G., Zhang, X., and Dong, Z., "Optimal Control for Ensured Drivability of Paralell HEVs/PHEVs during Mode Transition," SAE Technical Paper 2014-01-1895, 2014, https://doi.org/10.4271/2014-01-1895.
- DOE. EPA 2017 and Later Model Year Light-Duty Vehicle Greenhouse Gas Emissions and Corporate Anverage Fuel Economy Standards; Final Rule 2012
- F. H. A. U.S. Department of Transportation Summary of Travel Trends: 2009 National Household Travel Survey Washington DC June 2011
- Krumm , J. How People Use Their Vehicles: Statistics from the 2009 National Household Travel Survey SAE Technical Paper 2012-01-0489 2012 10.4271/2012-01-0489
- Kuang , M. An Investigation of Engine Start-Stop NVH in A Power Split Powertrain Hybrid Electric Vehicle SAE Technical Paper 2006-01-1500 2006 10.4271/2006-01-1500
- Beck R. , Saenger S. , Richert F. et al. Model Predictive Control of a Parallel Hybrid Vehicle Drivetrain Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference 2005 Seville, Spain 2005
- Koprubasi K. Toward the Systematic Design of Controllers for Smooth Hybrid Electric Vehicle Mode Changes Proceedings of the 2007 American Control Conference New York City, USA 2007
- Chen L. , Xi G. , Sun J. Torque Coordination Control During Mode Transition for a Series-Parallel Hybrid Electric Vehicle IEEE Transactions on Vehicular Technology 61 7 2936 2949 2012
- Pisu P. , Koprubasi K. , Rizzoni G. Energy Management and Drivability Control Problems for Hybrid Electric Vehicles Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference 2005 Seville, Spain 2005
- Kim H. , Kim J. , Lee H. Mode Transition Control Using Disturbance Compensation For a Parallel Hybrid Electric Vehicle Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 225 2 150 166 2011
- Kum D. , Peng H. , Bucknor N. Control of Engine-Starts for Optimal Drivability of Parallel Hybrid Electric Vehicles Journal of Dynamic Systems, Measurement, and Control 125 2013
- Armstrong-Helouvry B. , Dupont P. , Canudas C. A Survey of Models, Analysis Tools and Compensation Methods for the Control of Machines with Friction Automatica 30 7 1083 1183 1994
- Duan C. , Singh R. Dynamics of a 3dof Torsional System with a Dry Friction Controlled Path Journal of Sound and Vibration 657 688 2006
- Karnopp D. Computer Simulation of Stick-Slip Friction in Mechanical Dynamic System Journal of Dynamic Systems, Measurement, and Control 107 1985
- Lin C. , Peng H. , Grizzle J. Power Management Strategy for a Parallel Hybrid Electric Truck IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY 839 849 2003
- Wu , G. , Zhang , X. , and Dong , Z. Impacts of Two-Speed Gearbox on Electric Vehicle's Fuel Economy and Performance SAE Technical Paper 2013-01-0349 2013 10.4271/2013-01-0349
- www.fev.com 2013
- Baraszu R.C. , Cikanek S.R. Torque Fill-In for an Automated Shift Manual Transmission in a Parallel Hybrid Electric Vehicle Proceedings of the American Control Conference Anchorage, AK 2002