Dynamic environment-friendly travel path planning method for automobiles

A travel route and route planning technology, which is applied to road network navigators, measuring devices, instruments, etc., can solve the problems that environmental pollution cannot be guaranteed, does not meet the development plan of energy conservation and emission reduction, and has large emissions.

Inactive Publication Date: 2018-11-23
SHANDONG UNIV OF TECH
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Problems solved by technology

[0003] To sum up, a lot of research has been done on the planning methods and devices of the current vehicle navigation path planning, but the path planning models are all optimized with the shortest distance, the least time or the lowest cost. Under the background of serious pollution, the optimal emission cannot be guaranteed, and it does not conform to the national development plan for energy conservation and emission reduction

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  • Dynamic environment-friendly travel path planning method for automobiles
  • Dynamic environment-friendly travel path planning method for automobiles
  • Dynamic environment-friendly travel path planning method for automobiles

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Embodiment Construction

[0016] Now in conjunction with the accompanying drawings, the path planning process will be described in detail from the aspects of the overall flow of the present invention, vehicle experiments, emission model establishment, and Dijkstra algorithm optimization.

[0017] figure 1 It is the overall flowchart of path planning, which mainly includes four parts: actual vehicle experiment, establishment of emission measurement model, optimization of Dijkstra algorithm, and path planning.

[0018] A large number of vehicle-mounted experiments were carried out on urban roads of different grades including expressways, main roads, sub-arterial roads, and branch roads, and the emission and speed data of the four grades of roads were obtained as the basic data for emission model establishment and route planning; and established different Time period database, the database records real-time traffic information corresponding to different time periods, and is used to simulate dynamic traffi...

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Abstract

The invention discloses a dynamic environment-friendly travel path planning method for automobiles. The method comprises the following steps that an actual vehicle-mounted experiment is completed, anemission calculation model is established, a Dijkstra algorithm is optimized, an ArcGIS vector map is formed, path planning simulation is carried out, specifically, the actual vehicle-mounted experiment is completed by using MAHA METDH6.3 so as to acquire real-time vehicle emission data, a passenger vehicle emission calculation model is established based on VSP by adopting the data, the road network vector map is built according to a real urban road map by utilizing an ArcGIS platform, road network data of the vector map is imported into MATLAB, a dynamic optimal path is simulated and solved by combining the optimized Dijkstra algorithm with the emission calculation model and dynamic traffic information simulation, the established dynamic environment-friendly travel path planning model canplan the route schemes of different optimization targets better, the difference of different routes and different indexes is judged, the method is applied to actual road driving, drivers are assistedto complete the optimal path planning, and environment-friendly travel path planning suitable for being coupled with dynamic traffic is realized.

Description

technical field [0001] The invention relates to a method for planning an automobile dynamic and environment-friendly traveling path. Background technique [0002] At present, the development of vehicle navigation in path planning tends to improve the planning method and path planning device of the existing navigation system. The order of travel makes the user's choice of the order of actions diversified and improves the convenience of use; Qiao Hui (CN105974928A) invented a robot navigation path planning method, which uses a multi-fork tree structure to divide road signs into levels, and divides road signs into levels and adjacent levels. The positional relationship between the landmarks of the hierarchical direct relationship is saved as a landmark index, which makes the algorithm simple and efficient in path planning, and the planned path is unique; Chen Mingjie (CN103868518A) invented a computer program product for navigation path planning, which uses map databases The m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34
CPCG01C21/3469G01C21/3492
Inventor 郭栋王娟徐艺孙宇航张海李恺王家振李明辉李春栋
Owner SHANDONG UNIV OF TECH
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