Electric vehicle motor torque output method and system and related assembly

Abstract

The invention discloses an electric vehicle motor torque output method. The method comprises constructing a composite working condition according to all driving conditions of an electric vehicle; constructing a simulation model of the electric vehicle and determining a torque analysis formula according to the simulation model; obtaining a function to be optimized according to the corresponding relationship between the output torque and the driving range and the torque analysis formula, wherein the optimization target of the function to be optimized is the driving range; optimizing the functionto be optimized under the composite working condition to obtain a preferred parameter corresponding to the maximum driving range to output the corresponding motor torque according to the preferred parameter. According to the method, the electric vehicle can have good driving range under different working conditions. An electric vehicle motor torque output system, a computer readable storage medium and the electric vehicle with the above advantages are further disclosed.

Description

technical field [0001] The invention relates to the field of new energy vehicles, in particular to a motor torque output method and system of an electric vehicle, a computer-readable storage medium and an electric vehicle. Background technique [0002] In today's environment where the regulations on vehicle fuel consumption and emissions are becoming more and more stringent in various countries around the world, pure electric vehicles have the advantages of energy saving, high efficiency, and zero emissions. Therefore, many countries are currently committed to promoting the research and development and marketization of pure electric vehicles. [0003] Compared with hybrid vehicles and traditional vehicles, the main disadvantage of pure electric vehicles is the short driving range. Due to the short driving range and long charging time, the main complaint of pure electric vehicles in the current market is range anxiety. Under this premise, how to improve the driving range of p...

AI Technical Summary

Problems solved by technology

However, in the prior art, the analytical parameters of the accelerator pedal are only set for a certain working condition. When the electric vehicle is in another driving condition, this strategy cannot guarantee that the output power will enable the vehicle to reach the maximum mileage. The optimal parameters of the accelerator pedal torque analysis obtained by the optimization of the working conditions may not necessarily be the optimal parameters for other working conditions

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