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.