Jerk Analysis of a Power-Split Hybrid Electric Vehicle Based on a Data-Driven Vehicle Dynamics Model

Given its highly coupled multi-power sources with diverse dynamic response characteristics, the mode transition process of a power-split Hybrid Electric Vehicle (HEV) can easily lead to unanticipated passenger-felt jerks. Moreover, difficulties in parameter estimation, especially power-source dynamic torque estimation, result in new challenges for jerk reduction. These two aspects entangle with each other and constitute a complicated coupling problem which obstructs the realization of a valid anti-jerk method. In this study, a vehicle dynamics model with reference to a data-driven modeling method is first established, integrating a full-time artificial neural network engine dynamic model that can accurately predict engine dynamic torque. Then the essential reason for the occurrence of vehicle jerks in real driving conditions is analyzed. Finally, to smooth the mode transition process, a more practical anti-jerk strategy based on power-source torque changing rate limitation (TCRL) is proposed. Verification studies indicate that the data-driven vehicle dynamics model has enough accuracy to reflect the vehicle dynamic characteristics, and the proposed TCRL strategy could reduce the vehicle jerk by up to 85.8%, without any sacrifice of vehicle performance. This research provides a feasible method for precise modeling of vehicle dynamics and a reference for improving the riding comfort of hybrid electric vehicles.

[1]  Li Chen,et al.  Dynamic modelling and systematic control during the mode transition for a multi-mode hybrid electric vehicle , 2013 .

[2]  Huan Li,et al.  An indicated torque estimation method based on the Elman neural network for a turbocharged diesel engine , 2016 .

[3]  Yusuf Çay,et al.  Prediction of a gasoline engine performance with artificial neural network , 2013 .

[4]  Mahdi Shahbakhti,et al.  Performance prediction of HCCI engines with oxygenated fuels using artificial neural networks , 2015 .

[5]  Guido Herrmann,et al.  Current hybrid-electric powertrain architectures: Applying empirical design data to life cycle assessment and whole-life cost analysis , 2014 .

[6]  Chenghui Zhang,et al.  Data-Driven Predictive Torque Coordination Control during Mode Transition Process of Hybrid Electric Vehicles , 2017 .

[7]  Yong Zhang,et al.  Optimal energy management for a series–parallel hybrid electric bus , 2009 .

[8]  Bo Guo,et al.  Online Capacity Estimation of Lithium-Ion Batteries Based on Novel Feature Extraction and Adaptive Multi-Kernel Relevance Vector Machine , 2015 .

[9]  Ezio Spessa,et al.  Robust equivalent consumption-based controllers for a dual-mode diesel parallel HEV , 2016 .

[10]  Yang Yang,et al.  Coordinated Control Strategies for a Full Hybrid Electric Vehicle with Single Motor During Mode Changes , 2016 .

[11]  Arunkumar Jayakumar,et al.  Review of prospects for adoption of fuel cell electric vehicles in New Zealand , 2017 .

[12]  Vu Trieu Minh,et al.  Modeling and model predictive control for hybrid electric vehicles , 2012 .

[13]  Haisheng Yu,et al.  Vibration and acoustic investigation for a deep hybrid transmission with power-split compound planetary gear set , 2016 .

[14]  Xu Zhang,et al.  Probability based remaining capacity estimation using data-driven and neural network model , 2016 .

[15]  Xiaohua Zeng,et al.  Multi-factor integrated parametric design of power-split hybrid electric bus , 2016 .

[16]  Yoshiaki Ito,et al.  Design of the Surge Control Method for the Electric Vehicle Powertrain , 2002 .

[17]  Yi Tong,et al.  REAL-TIME SIMULATION AND RESEARCH ON CONTROL ALGORITHM OF PARALLEL HYBRID ELECTRIC VEHICLE , 2003 .

[18]  Haisheng Yu,et al.  Experimental and numerical analysis of the seat track vibrations caused by engine starts in a power-split hybrid electric vehicle , 2017 .

[19]  Erol Arcaklioğlu,et al.  A diesel engine's performance and exhaust emissions , 2005 .

[20]  Hong Chen,et al.  Gear ratio optimization and shift control of 2-speed I-AMT in electric vehicle , 2015 .

[21]  Chen Wang,et al.  Mode transition coordinated control for a compound power-split hybrid car , 2017 .

[22]  Hiroshi Sugita,et al.  Noise and Vibration Reduction Technology in Hybrid Vehicle Development , 2001 .

[23]  Hong Chen,et al.  Engine Speed Control During Gear Shifting of AMT HEVs with Identified Intake-to-Power Delay , 2016 .

[24]  Jin-Hua Xu,et al.  Integrated assessment of energy efficiency technologies and CO2 abatement cost curves in China’s road passenger car sector , 2016 .

[25]  Jianxin Liu,et al.  Predictive-model-based dynamic coordination control strategy for power-split hybrid electric bus , 2015 .