Operating condition recognition control method for pure electric vehicles

Abstract

The invention provides a working condition identification control method of a pure electric vehicle, comprising: acquiring standardized working condition data of a pure electric vehicle, dividing kinematic segments, and extracting characteristic parameters of kinematic segments through dimensionality reduction by principal component analysis; The genetic algorithm performs clustering analysis on the characteristic parameters extracted from the kinematics segment and establishes typical working conditions according to the clustering results; optimizes the membership function of the fuzzy controller according to the typical working conditions to obtain a fuzzy controller suitable for typical working conditions ; Extract relevant characteristic parameters according to the historical driving data; use the neural network controller to identify the characteristic parameters of the historical driving data to obtain the clusters to which the historical driving data belongs; call the corresponding fuzzy controller parameters according to the clusters to which the historical driving data belongs to realize Working condition identification: obtain the energy control strategy of the pure electric vehicle according to the identified working condition. The method adopts the genetic algorithm and the neural network controller to accurately identify the actual working condition of the vehicle.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a method for identifying and controlling working conditions of pure electric vehicles. Background technique [0002] Driving conditions are the basic basis for vehicle design, especially new vehicle design and energy and power management. In related technologies, the identification of driving conditions for the drive control system of pure electric vehicles generally takes the driver's operation intention as the basis for the identification of working conditions. By referring to the accelerator pedal opening signal and judging the driver's operation intention, the drive system control strategy is formulated. [0003] However, the above method only considers the driver's operating intention, but does not consider the actual operating state of the pure electric vehicle, which will lead to deviations in the identification of working conditions. Contents of the invention [00...

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Problems solved by technology

[0003] However, the above method only takes into account the driver's operating intention, and does not consider the actual operating state of the pure electric vehicle, which will lead to deviations in the identification of working conditions

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