Vehicle speed planning method based on cloud reasoning

Abstract

The invention relates to a cloud inference-based car cruising speed planning method, which takes the average fuel consumption of a car per 100 kilometers as an economic evaluation index. The planning method has the flow diagram that first, a cloud model of the average fuel consumption per 100 kilometers is established based on experimental data; second, related theories of cloud transform, cloud inference and the like are used for determining a concept tree of cloud model input and outputting variables so as to generate a cloud model rule base of the average fuel consumption of a car per 100 kilometers; a mapping relationship between the input and output variables is generated based on automatic extraction procedures of the cloud inference and the rule base, the economic speed under different driving resistances is extracted based on the mapping relationship, an economic cruising speed changing track which is adapted to the change of driving resistances is planned for these economic speeds, and the car runs at the economic speed corresponding to the driving resistance all the time. Accordingly, the method can improve the fuel economy of the whole car, thereby effectively reducing the average fuel consumption of a car per 100 kilometers and better achieving the purpose of energy conservation and emission reduction.

Description

technical field [0001] The invention is a cloud-based reasoning-based vehicle cruising speed planning method. It can switch between different driving resistance conditions according to the road conditions and climate environment parameters when the car is cruising, and plan the change trajectory of the economical cruising speed. Background technique [0002] During the "Eleventh Five-Year Plan" period, the country proposed a strategy for energy conservation and emission reduction. During the "Twelfth Five-Year Plan", my country continued to implement energy conservation and emission reduction, and then proposed a specific "energy-saving and new energy vehicle" strategy, which shows that the country's fuel economy for automobiles and emission performance are constantly putting forward new requirements. [0003] The existing cruising technology has certain fuel economy, but the cruising mode takes the comfort and safety of the vehicle as the control target, and cannot maximize...

AI Technical Summary

Problems solved by technology

[0003] Existing cruise technology has certain fuel economy, but this cruise mode takes the comfort and safety of the vehicle as the control goal, and cannot maximize the fuel economy of the vehicle

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