Approximate Dynamic Programming Applied to a Four Quadrant Transducer Series-Parallel Hybrid Electric Bus
Paper i proceeding, 2009

This paper presents an Approximate Dynamic Programming scheme that, based on the assumption of perfectly known future driving, efficiently solves the optimal power split in a Series-Parallel hybrid powertrain. The scheme combines two ideas to reduce the computational load of the dynamic programming. First, the cost-to-go function is approximated using piecewise linear functions on a sparse grid. Secondly, by using precalculated maps, the iterations performed in the dynamic programming are reduced to simple table lookups and linear interpolation. The approximation scheme is simulated on a Four Quadrant Transducer Series-Parallel Hybrid Electric Bus. In the simulations the approximation scheme is able to find a sufficiently good approximation of the optimal control trajectory.

Författare

Lars Johannesson

Chalmers, Signaler och system, System- och reglerteknik, Reglerteknik

Stefan Pettersson

Bo Egardt

Chalmers, Signaler och system, System- och reglerteknik, Reglerteknik

European Control Conference, ECC 2009, Budapest, Hungary, 23-26 August 2009

4846-4851

Styrkeområden

Transport

Energi

Ämneskategorier

Reglerteknik

ISBN

978-395241739-3

Mer information

Skapat

2017-10-08