Research Article

A Three-Step Heuristic Approach to the Electric Vehicle Path Planning Problem considering Charging

Table 4

The steps of the traffic network preprocessing algorithm.

Traffic network preprocessing algorithm

InputOriginal road network , the set of charging stations , the speed of road link , the energy consumption of road links , and the battery capacity

OutputCharging feasibility road network

Step 1Using Bellman–Ford’s algorithm to find the time shortest path and energy minimum path of each two nodes in . Calculating the corresponding energy consumption and of the two paths

Step 2Determine whether the shortest time path is feasible, and the corresponding weights of the road sections in the road network are set to the corresponding path time consumption

Step 3When is not feasible, determine whether the shortest energy consumption path is feasible. If is a feasible path, the weight of the section is set to the path time consumption . If not, the weight has great value.