Control Development for a Hybrid-electric Sport-Utility Vehicle
Ohio State University
This talk presents an overview of control issues associated with the energy and management and exhaust emissions control in hybrid electric vehicles. The control strategy presented and evaluated in this paper was developed for a parallel hybrid vehicle designed for the Future Truck 2000 competition. In the context of a charge-sustaining operation, the control strategy implemented focuses on fuel efficiency optimization. It is based on converting the use of the electric machine into an equivalent fuel flow leading to a simple minimization problem of univariate form. Actual road test results are presented. The same formalism is then extended to enforce emission reduction. The various static maps of the engine are taken into account to include (in a suitably non-dimensional form) the emissions into the control strategy optimization cost with appropriate weighting coefficients.
Friday, October 26, 2001
3:30 - 5:00 p.m.