An existing full car dynamic model (HVOSM.VD2) was expanded previously to enable simulation of electric, hybrid electric, and fuel cell vehicles with integrated vehicle stability systems. A prototype range extending series hybrid electric vehicle was constructed with independent front wheel drives. A hybrid vehicle stability assist (VSA) algorithm was developed to perform proportional control of yaw rate through left/right distribution of front motor torques while simultaneously blending anti-lock braking and traction control with electric drive within hybrid system power limits. The new model, Hybrid Electric Vehicle Dynamic Environment, Virtual (HEVDEV), was validated and used to simulate the Hybrid VSA safety system in the prototype. Skid pad testing was performed to validate HEVDEV simulations of steady state turning behavior. Further simulations using proportional control of differential front wheel torque predicted stable Hybrid VSA performance during step-steer and braking-in-a-turn dynamic maneuvers within hybrid drive-train power limitations. This study focuses on system transient behavior during step steer inputs using more power intensive PID control algorithms, several front to rear weight distributions, and recent trends in HEV and Fuel Cell component specifications. Conclusions are made about component specifications for successful Hybrid VSA systems in future Plug-In hybrid electric (PHEV) and Fuel Cell (FCV) Vehicles.

Volume Subject Area:
Design Engineering
Topics:
Algorithms, Hybrid electric vehicles, Modeling, Stability, Transients (Dynamics), Simulation, Braking, Engineering prototypes, Fuel cells, Vehicles, Wheels, Control algorithms, Dynamic models, Electric propulsion, Engines, Fuel cell vehicles, Locks (Waterways), Safety, Steady state, Testing, Torque, Traction, Trains, Weight (Mass), Yaw
1.
Anstrom, Joel R., 2003, “Model Development for Integrated Hybrid Electric Vehicle Dynamic Stability Systems,” IMECE2003-43188, 2003 ASME International Mechanical Engineering Congress & Exposition.
2.
Sisiopiku, V., Rousseau, A., Fouad, F., Peters, R., “Technology Evaluation of Hydrogen Light-Duty Vehicles,” Journal of Environmental Engineering, ASCE, 2006.
3.
Shibahata
Y.
,
Shimada
K.
, and
Tomari
T.
,
1993
, “
Improvement of Vehicle Maneuverability by Direct Yaw Moment Control
,”
Vehicle Systems Dynamics
,
22
, pp.
465
–
481
.
4.
Anstrom, J. R., 2002, “Model Development for Hybrid Electric Vehicle Stability Assist Systems,” Ph.D. thesis, The Pennsylvania State University, University Park, PA.
5.
Bosch, Automotive Handbook (4th Ed.), 1996, Society of Automotive Engineers.
6.
Highway-Vehicle-Object Simulation Model - 1976, Vol. 1 Users Manual, Federal Highway Administration Report No. FHWA-RD-76-162.
7.
Highway-Vehicle-Object Simulation Model - 1976, Vol. 2. Programmers Manual, Federal Highway Administration Report No. FHWA-RD-76-163.
8.
Highway-Vehicle-Object Simulation Model - 1976, Vol. 3 Engineering Manual – Analysis, Federal Highway Administration Report No. FHWA-RD-76-164.
9.
Highway-Vehicle-Object Simulation Model - 1976, Vol. 4 Engineering Manual – Validation, Federal Highway Administration Report No. FHWA-RD-76-165.
10.
Genta, G., 1997, “Motor Vehicle Dynamics, Modeling and Simulation,” World Scientific Publishing Co. Pte. Ltd., River Edge, NJ.
11.
Hochgraf, Clark G., Ryan, Michael J., and Wiegman, Herman L., 1996, “Engine Control Strategy for a Series Hybrid Electric Vehicle Incorporating Load-Leveling and Computer Controlled Energy Management,” SAE Technical Paper Number 960230.
12.
Wang, C.Y and Gu, W.B., 1998, “Micro-Macroscopic Coupled Modeling of Batteries and Fuel Cells,” Journal of Electrochemical Soc., Vol. 145, No. 10.
13.
SAE J266 - Steady-State Directional Control Test Procedures for Passenger Cars and Light Trucks, January, 1996.
14.
ISO 7401, Road Vehicles - Lateral transient response test methods, First Edition, 1988-05-01, International Organization for Standardization.
15.
ISO 7975, Passenger cars - Braking in a turn - Open-loop test procedure, Second Edition, 1996-12-15, International Organization for Standardization.
This content is only available via PDF.
Copyright © 2006
 by ASME
You do not currently have access to this content.