Method for optimizing driving path according to energy consumption of pure electric vehicle

Abstract

The invention discloses a method for optimizing a driving path according to energy consumption of a pure electric vehicle. The method comprises the following steps: acquiring driving energy consumed by the vehicle on each road section for overcoming driving resistance according to the running speed, the road section length and the road section gradient of the vehicle on each road section; throughdriving range tests in different environments, obtaining hundred-kilometer energy consumption of an air conditioner, hundred-kilometer energy consumption of a low-pressure accessory and hundred-kilometer recovered energy of an energy recovery system, and calculating vehicle energy consumption according to the total mileage of the recommended path; calculating the total energy consumption by addingthe sum of the running energy consumption to the vehicle energy consumption, comparing the energy output by the battery with the total energy consumption, and reasonably planning the driving path. The driving path is reasonably planned by comprehensively considering the energy running consumption of the pure electric vehicle and the energy consumption of the vehicle.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a method for optimizing a driving path according to the energy consumption of a pure electric vehicle and an automobile using the method. [0002] technical background [0003] The energy consumption rate of electric vehicles is related to many factors, such as ambient temperature, driving habits, road congestion rate, etc. The driving range provided by automobile manufacturers is measured under NEDC (New European Driving Cycle, New European Standard Driving Cycle) As a result, the NEDC operating conditions are quite different from the actual operating conditions, resulting in a discrepancy between the actual mileage and the announced value. [0004] When driving an electric vehicle to plan a travel route, the driver needs to choose a reasonable driving route according to the energy consumed to reach the destination. If the energy required to reach the destination is greater ...

AI Technical Summary

Problems solved by technology

[0005] In the past, the current value was mostly calculated based on the historical average energy consumption value, and it was impossible to make real-time estimates based on information such as road speed limit, road congestion status, and external environment. There will be serious deviations, which may cause the speed limit or break down of the prototype car due to insufficient power during driving, causing troubles for the driver's travel

Images