Computational Reduction of Optimal Hybrid Vehicle Energy Management

Pontryagin's Minimum Principle is a way of solving hybrid powertrain optimal energy management. This letter presents an improvement of a classical implementation. The core of this improvement consists in relaxing the tolerance on some intermediate steps of the algorithm in order to reduce the number of iterations and thereby reducing the number of operations required to compute an optimal solution. This letter describes both a classical implementation of Pontryagin's Minimum Principle as well as the improved version. Numerical simulations are conducted on an academic example to demonstrate the benefits of the proposed approach.

Automated summary

This letter introduces the classical implementation of Pontryagin's Minimum Principle and its improved version. By relaxing the tolerance on intermediate steps, the number of iterations is reduced, resulting in a more efficient computation. Numerical simulations are conducted to validate the benefits of the proposed approach.