多交叉口工况的网联汽车最优节油驾驶策略

This paper describes a fuel-saving driving strategy for multiple intersections with known signal times. The fuel-saving strategy with two signals is constructed as a constrained optimal control problem with the vehicle longitudinal dynamics model as the state equations and with the vehicle physical performance and environmental conditions as constraints. A reverse recursive calculational method based on dynamic programming is used to solve the problem with an accelerate-cruise-decelerate fuel-saving driving strategy. The fuel-saving modes for two intersections are then extended to multiple intersections as a shortest path problem solved by the Floyd-Warshall algorithm. A fuel-saving driving strategy is then developed for multiple intersections with the same or different speed limits.