Method and system for intelligently charging starting battery of electric vehicle

Abstract

The invention discloses a method and system for intelligently charging a starting battery of an electric vehicle, and relates to the technical field of battery charging. The method comprises the step that an intelligent charging mode is determined; if a voltage detection mode is selected, when the voltage of the starting battery is smaller than the voltage lower limit value, the temperature of the starting battery is detected in real time, a corresponding charging process is entered according to the temperature, and when the voltage of the battery is larger than the voltage upper limit value, charging of the battery is stopped; if a timed wake-up mode is selected, when the set sleep time is reached and the voltage of the starting battery is smaller than the set voltage upper limit value, the step of detecting the temperature of the starting battery in real time is executed, and otherwise, the system enters sleep; and if an automatic detection mode is selected, the next charging time before the system is dormant is calculated, and when the charging time is reached, the step of detecting the temperature of the starting battery in real time is executed. According to the method, the environment temperature for starting the battery is adjusted to ensure that the battery is at the optimal charging temperature, and the service life and standing time of the battery are prolonged.

Description

technical field [0001] The invention relates to the technical field of battery charging, in particular to a method and system for intelligent charging of an electric vehicle startup battery. Background technique [0002] With the increasing intelligence of electric vehicles, there are more and more intelligent electronic devices for electric vehicles. The starting battery of electric vehicles is prone to power loss when the car is dormant for a long time, so that the electric vehicle cannot be started normally. Frequent power loss leads to irreversible damage to the starter battery, which seriously shortens the service life of the starter battery. [0003] In view of the above problems, the method of regularly waking up the DC / DC converter is currently used on the market. When the battery voltage is lower than the limit value, the DC / DC converter is started to charge the starting battery. This method will appear at the Nth time The voltage is normal, but the phenomenon of ...

AI Technical Summary

Problems solved by technology

The starting battery of electric vehicles is prone to power loss when the car is dormant for a long time, so that the electric vehicle cannot be started normally

Frequent power loss leads to irreversible damage to the starter battery, which seriously shortens the service life of the starter battery

[0003] In view of the above problems, the method of regularly waking up the DC / DC converter is adopted on the market at present. When the battery voltage is lower than the limit value, the DC / DC converter is started to charge the starting battery. This method will appear at the Nth time The voltage is normal, but there is a phenomenon of power loss at N+1 times, which cannot fundamentally solve the problem

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