Energy consumption optimization method for pure electric vehicle

Abstract

The invention discloses an energy consumption optimization method for a pure electric vehicle. The method comprises the following steps of: drawing a resistance curve graph based on an external characteristic graph of a drive motor of the pure electric vehicle, drawing an energy consumption equal-height curve graph on the basis of the resistance curve graph in the step, and selecting an economic gear curve in the energy consumption equal-height curve graph, and selecting the actual torque and the rotating speed of the corresponding driving motor according to the economic gear curve. The methodhas the advantages that a proper economic gear curve is selected in the energy consumption equal-height curve graph, the economic gear curve serves as a boundary to divide an economic area and a dynamic property area, and different actual torques and rotating speeds of the driving motor are selected in the economic area and the dynamic property area according to strategies. On the basis that thecost is not increased, the brand-new energy consumption optimization method for the pure electric vehicle is provided, and the driving range of the electric vehicle is increased.

Description

technical field [0001] The present invention relates to the technical field of electric vehicles, in particular to a method for optimizing energy consumption of pure electric vehicles. Background technique [0002] With the popularity of pure electric vehicles, people are concerned about the mileage and power consumption of pure electric vehicles. Usually, the energy consumption of a car is evaluated by the power consumption per kilometer. However, a car The energy consumption performance of the vehicle not only depends on the performance of the matching motor, but also depends to a large extent on the road conditions the vehicle is driving on and the driving habits of the driver. Therefore, two vehicles with the same configuration will drive on the same route, and the result will be It shows different energy consumption; two vehicles with the same configuration and the same driver drive on different routes, and the final energy consumption is also different. [0003] At pr...

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Problems solved by technology

[0005] For the second method, the solution of choosing a high-speed motor with a two-speed gearbox will increase the number of parts and failure points, and at the same time, the efficiency of the gearbox will not necessarily improve the overall system efficiency.

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