Control method of electric vehicle power system based on digital twin technology

Abstract

The invention relates to a control method of an electric vehicle power system based on the digital twin technology. The method comprises: building a digital twin virtual power system matching a physical power system on a simulation platform based on the digital twin technology; enabling a simulation working environment of the virtual power system to be consistent with an actual working environmentof the physical power system; collecting physical data generated by the operation of the physical power system and virtual data generated by the operation of the virtual power system by using a digital twin platform and then carrying out data analysis and fusion processing; carrying out feature extraction on the data after analysis and fusion; establishing and updating a power system control model and acquiring a corresponding optimal control strategy under the latest control model by combining calibration performances of the physical power system and the current state of the electric vehiclewith the online simulation technology; and packaging the optimal control strategy into the physical power system to change the operation control of the physical power system automatically and displaying the optimal control strategy to the user through a service terminal to realize optimal control.

Description

technical field [0001] The invention relates to the technical field of electric vehicle power system management and control, in particular to a control method for the electric vehicle power system based on digital twin technology. Background technique [0002] At present, with the strong support of national policies, major automobile manufacturers, universities and scientific research institutions are conducting a lot of research on electric vehicles. Among them, the research on the control method of the electric vehicle power system is a very important direction, which directly affects the reliability of the power system, the life of key components such as motors, and the driving habits of drivers. [0003] Traditional electric vehicles mainly include vehicle controllers, power batteries, battery management systems, drive motors, motor controllers, transmissions, transmissions, and multiple driving components, etc. Connect the battery management system and the motor contro...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a control method of electric vehicle power system based on digital twin technology for the problems of low working efficiency, untimely management and control, and inability to detect and warn some potential dangers in advance in the traditional control method of electric vehicle power system. The method is innovative Introduced the digital twin technology, and built a virtual power system that is completely consistent with the physical power system, and then synchronously monitored the operation data of the two power systems in the actual working environment and the simulated working environment, and collected the operating data of the two After analysis and processing, the power system control model is established accordingly, the operating data of the two systems are dynamically monitored and the power system control model is dynamically updated, and the optimal control strategy is obtained based on the power system control model, so as to realize dynamic management and control of the power system's operating state, effectively Improve the working performance and working efficiency of the power system

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