Battery charging data storage and extraction method

Abstract

The invention relates to a battery charging data storage and extraction method. The method includes the steps that a voltage interval value is set according to different battery types; an initial voltage data value and an initial capacity data value at the work starting time of a battery management system are recorded, and a real-time voltage value and a real-time capacity data value are stored ina buffer area of the battery management system; when it is met that the absolute value of the result obtained by subtracting a former recorded voltage data value from the real-time voltage value is larger than or equal to the preset voltage interval value, calculation is conducted to obtain a capacity increment peak value, and the real-time voltage value and the capacity increment peak value arestored in a permanent storage area of the battery management system or a background server until the battery is full; interpolation of the real-time voltage value and the capacity increment peak valuedata is conducted, and interpolation function recovery is obtained through the Lagrangian interpolation method.

Description

Technical field [0001] The invention relates to a method for storing and extracting battery charging data, and belongs to the technical field of battery charging data management. Background technique [0002] Rechargeable batteries are batteries that can be recharged and used. The charging of rechargeable batteries has always been the focus of people’s concern. The correct and good charging method and the management of charging data can ensure the normal operation and service life of the battery. With the progress of society, electric Automobiles are gradually entering people’s lives. Electric vehicles are powered by on-board power supplies and use motors to drive wheels. The electric drive and control system on electric vehicles is the core of electric vehicles. The electric drive and control system consists of driving motors, power supplies, and The motor speed control device and other components; the driving power of the motor comes from the on-board rechargeable battery or ot...

AI Technical Summary

Problems solved by technology

[0002] Rechargeable batteries are batteries that can be recharged and utilized. The charging of rechargeable batteries has always been the focus of people's concern. Correct and good charging methods and management of charging data can ensure the normal operation and service life of batteries. With the progress of society, electric Cars gradually enter people's lives. Electric vehicles refer to vehicle-mounted power supplies as power and motor-driven wheels. The electric drive and control system on electric vehicles is the core of electric vehicles. The electric drive and control system consists of drive motors, power supplies and The motor speed control device and other components; the driving power of the motor comes from the on-board rechargeable battery or other energy storage devices. Therefore, the on-board power supply is a very important component, and the electric drive and control system needs to obtain some information about the on-board power supply in order to facilita

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