Traffic energy-saving safe moving trajectory planning control method

Abstract

The invention relates to a traffic energy-saving safe running trajectory planning control method. The method comprises the steps that S1, the optimal traction cruise speed is estimated according to a time table; s2, generating an energy consumption approximate optimal solution by using an optimal cruise minimum time algorithm; s3, judging whether the train running time corresponding to the result of the step S2 meets the time table or not, if yes, executing S5, and otherwise, executing S4; s4, iteratively updating the optimal traction cruise speed according to the train running time in the step S3 and the error of the time table, and then executing the step S2; s5, optimizing the approximate optimal solution of the energy consumption by using a search replacement algorithm; s6, judging whether the train running time corresponding to the result of the step S5 meets the time table or not, if yes, ending calculation, otherwise, re-estimating the optimal traction cruise speed, and returning to execute the step S2 and the step S5; and S7, controlling the train to run according to the train running track. Compared with the prior art, the method has the advantages that for the high-speed train, the abrupt slope line and the road section speed limit constraint are considered, and the train running track can be planned and controlled under the condition of accompanying variable interruption.

Description

technical field [0001] The invention relates to the technical field of traffic safety control, in particular to a method for planning and controlling traffic energy-saving and safe running track. Background technique [0002] According to the statistical bulletin released by the China Railway Corporation in 2019, the total length of my country's high-speed rail operations has increased to 35,000 kilometers, accounting for 75% of the world's high-speed rail. With more than 2.29 billion trips by high-speed rail, huge energy consumption is required to meet transportation demands. From the perspective of environmental protection and sustainable development, it has become a challenge for the high-speed rail industry to reduce the energy consumption of the high-speed rail system while meeting the transportation requirements. Considering the implementation cost and effect, a recent study showed that the installation of automatic train operation system (ATO) with energy-saving driv...

AI Technical Summary

Problems solved by technology

However, EEDS for high-speed trains equipped with autonomous driving and energy recovery devices on undulating terrain will be more complex than that of ordinary trains, due to having to deal with steep track slopes that often occur in the real world and prevent trains from speeding. A high-speed train running on a track with a steep slope and a speed limit, especially when the speed limit has been reached, will cause the accompanying variables to be discontinuous in the calculation process, which will increase the overall calculation time on the one hand and make it difficult to ensure that the train Minimal energy consumption at upper speed on steep inclines

Images