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Battery power consumption control method, device and unmanned aerial vehicle

A technology of battery power consumption and battery, applied in program control, measurement device, computer control, etc., can solve the problem of high overall battery power consumption, achieve ultra-low power consumption, and protect the effect of over-discharge

Active Publication Date: 2022-05-24
SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the existing battery power consumption control scheme, generally only some functional modules of the battery are controlled to stop working, while the microprocessor is still working normally. This control method makes the overall power consumption of the battery still relatively high

Method used

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  • Battery power consumption control method, device and unmanned aerial vehicle
  • Battery power consumption control method, device and unmanned aerial vehicle
  • Battery power consumption control method, device and unmanned aerial vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] figure 2 A schematic flowchart of a battery power consumption control method provided by an embodiment of the present invention, combined with figure 1 The technical solution in the first embodiment will be described together. like figure 2 As shown, the battery power consumption control method includes:

[0064] Step S110: Determine that the battery is in a state of no charging current, no discharging current, and no communication.

[0065] In one embodiment, given that the battery is working properly (eg, normal charging, normal discharging, or normal communication), serious consequences may arise if the fuel gauge 20 is controlled to enter deep sleep mode (eg, the fuel gauge 20 is in flight when the UAV is in flight). 20 Entering deep sleep mode will cause the consequences of a crash), so it is necessary to make sure that the battery is in a state of no charging current, no discharging current, and no communication. The charging current or discharging current o...

Embodiment 2

[0078] see image 3 , in one embodiment, when the judgment result of step S130 in the first embodiment above is no, the method further includes:

[0079] Step S150: Determine that the battery is in a state of no charging current, no discharging current, and no communication for a duration greater than or equal to a second preset duration.

[0080] In one embodiment, considering that the battery needs to better preserve the power of the battery pack 10 during transportation or long-term storage, the battery can be kept in a state of no charging current, no discharging current, and no communication. When it is determined that the battery is in a state of no charging current, no discharging current, and no communication for a duration greater than or equal to the second preset duration, we can consider that the battery is in the process of transportation or long-term storage. .

[0081] The second preset duration can be artificially set as reasonable data, such as 3 days, 7 day...

Embodiment 3

[0088] see Figure 4 , in one embodiment, the electrical performance parameter in the above-mentioned second embodiment also includes the cell voltage difference, and before step S140, it also includes:

[0089] Step S170: Determine according to the electrical performance parameter that the voltage difference between the cells is less than a third voltage threshold.

[0090] In this embodiment, the voltage difference between the cells refers to the absolute value of the voltage difference between any two cells in the cell group 10 , that is, the absolute value of the voltage difference between any two cells is smaller than the third voltage The thresholds are considered to meet the conditions.

[0091] In one embodiment, the third voltage threshold is 30 millivolts. Normally, when the voltage difference between the cells in the cell group 10 is greater than 30 millivolts, it means that the cell group 10 needs to be equalized, otherwise it is not suitable to enter the normal ...

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Abstract

The invention relates to a battery power consumption control method, device and unmanned aerial vehicle. The battery power consumption control method includes: determining that the battery is in a state of no charging current, no discharging current, and no communication; collecting electrical performance parameters of the battery , the electrical performance parameter includes the minimum voltage of the cell of the battery; judge whether the minimum voltage of the cell is less than or equal to the first voltage threshold according to the electrical performance parameter, and if so, control the fuel gauge and the microprocessor Both enter deep sleep mode. The invention is equivalent to adopting double control of the fuel gauge and the microprocessor, which can make the battery realize ultra-low power consumption under certain conditions, thereby protecting the battery from over-discharging to the greatest extent.

Description

【Technical field】 [0001] The invention relates to the technical field of battery management, and in particular, to a battery power consumption control method, device and unmanned aerial vehicle. 【Background technique】 [0002] Unmanned aerial vehicle is a product with high safety requirements. As the core of unmanned aerial vehicle safety, battery is particularly important in the safety design of unmanned aerial vehicle. The battery stored for a long time will enter a very low voltage state due to its own power consumption. Once the battery voltage is lower than a threshold (such as 1V), it may cause permanent damage to the battery and cause property damage to the user. . Therefore, we need to take some control strategies to reduce the rate of battery self-discharge. [0003] However, in the existing battery power consumption control scheme, generally only some functional modules that control the battery stop working, while the microprocessor is still working normally. Thi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/367G05B19/042
CPCG05B19/0428G05B2219/2639Y02T10/70
Inventor 秦威
Owner SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD