Battery equalizing apparatus and method, and unmanned aerial vehicle

A battery equalizing method, wherein the method is applied to the battery equalizing apparatus which comprises:

• a battery gauge configured to monitor battery level information of a battery in a static state, a battery equalizing circuit being disposed inside the battery gauge;
• and
• a microprocessor connected to a communication port of the battery gauge and configured to:
• acquire the battery level information monitored by the battery gauge, and calculate a pressure difference between cells of the battery in a static state according to the battery level information, and determine whether the pressure difference is greater than a pressure difference threshold;
• the microprocessor sending a trigger signal to the battery gauge through the communication port when the pressure difference is greater than the pressure difference threshold, to trigger the equalizing circuit of the battery gauge to equalize the battery and comprises:
• acquiring battery level information of the battery in a static state, calculating a pressure difference between the cells of the battery in a static state according to the battery level information, and determining whether the pressure difference is greater than the pressure difference threshold;
• and
• sending a trigger signal to the battery gauge through the communication port when the pressure difference is greater than the pressure difference threshold, to trigger the battery gauge to equalize the battery;
• determining, according to the battery level information of the battery, whether a remaining battery level of the battery is less than or equal to a first equalization threshold;
• and
• controlling, when the remaining battery level of the battery is less than or equal to the first equalization threshold, the battery gauge to skip equalizing the battery,
• determining, according to the battery level information of the battery during battery equalization, whether the remaining battery level of the battery is less than or equal to a second equalization threshold;
• and
• controlling, when the remaining battery level of the battery is less than or equal to the second equalization threshold, the battery gauge to stop equalizing the battery;
• wherein
• the second equalization threshold is less than or equal to the first equalization threshold.

An unmanned aerial vehicle (UAV), comprising a battery, wherein the battery is equalized by adopting the battery equalizing method which comprises:

• acquiring battery level information of the battery in a static state, calculating a pressure difference between the cells of the battery in a static state according to the battery level information, and determining whether the pressure difference is greater than the pressure difference threshold;
• and
• sending a trigger signal to the battery gauge through the communication port when the pressure difference is greater than the pressure difference threshold, to trigger the battery gauge to equalize the battery;
• determining, according to the battery level information of the battery, whether a remaining battery level of the battery is less than or equal to a first equalization threshold;
• and
• controlling, when the remaining battery level of the battery is less than or equal to the first equalization threshold, the battery gauge to skip equalizing the battery,
• determining, according to the battery level information of the battery during battery equalization, whether the remaining battery level of the battery is less than or equal to a second equalization threshold;
• and
• controlling, when the remaining battery level of the battery is less than or equal to the second equalization threshold, the battery gauge to stop equalizing the battery;
• wherein
• the second equalization threshold is less than or equal to the first equalization threshold.