Method for evaluating influence of charging behavior on health condition of electric vehicle battery

Abstract

The invention discloses a method for evaluating the influence of a charging behavior on the health condition of an electric vehicle battery. The method comprises the steps that the historical charge record and the historical health state information of the battery are acquired; the current health state information of the battery is evaluated; the expected service life of the battery under different charge working condition combinations is predicted according to the current health state information of the battery and a battery recession sample library; charge control parameter combinations are selected according to the expected service life; the charge current of a power source is controlled according to the charge control parameter combinations; the remaining electricity quantity of the battery is calculated according to the voltage and current characteristic of the battery, and remaining charge time is calculated according to the remaining electricity quantity and charge control parameters; a battery health state evaluation report is provided for a user, and the charge information of this time is stored. The invention further discloses a system for evaluating the influence of the charging behavior on the health condition of the electric vehicle battery. A driver can know the health state of the battery under the selected charge mode, and therefore the proper charge mode is selected.

Description

technical field [0001] The present invention relates to a method for evaluating the impact of charging behavior on the health status of a battery, in particular to a method for evaluating the impact of charging behavior on the health status of an electric vehicle battery, and the invention also relates to a method for evaluating the impact of charging behavior on the health status of an electric vehicle battery affected system. Background technique [0002] Electric vehicles refer to vehicles powered by vehicle-mounted power supplies and driven by motors. Compared with traditional vehicles, electric vehicles have less impact on the environment and meet the requirements of new energy development. They are an important means to solve energy and environmental problems. inevitable trend. [0003] Among the components of electric vehicles, the battery of electric vehicles is the primary key to the development of electric vehicles. The batteries used in electric vehicles should m...

AI Technical Summary

Problems solved by technology

However, due to the immaturity of the current electrochemical energy storage technology, occasional accidental combustion accidents of the produced batteries and uneven production quality have caused the development of electric vehicles to stagnate

Therefore, much research and development is currently focused on the material stability and manufacturing reliability of the battery, but not on the assessment of the impact of charging behavior on the health of the electric vehicle battery.

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