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Battery voltage filtering method and device

A battery voltage and filter device technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve problems such as load fluctuations, cell voltage fluctuations, battery output current fluctuations, etc.

Inactive Publication Date: 2018-03-20
SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, during the flight, the load fluctuates due to the adjustment of the motor speed, which leads to the fluctuation of the battery output current, which in turn causes the voltage fluctuation of the battery cell to be very violent, and the output voltage of the battery cell cannot be directly used for further analysis and processing.

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  • Battery voltage filtering method and device

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Embodiment Construction

[0076] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other if there is no conflict.

[0077] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

[0078] see figure 1 , an embodiment of the present invention proposes a battery voltage filtering method, including:

[0079] Step 100: Obtain the output voltage and output current of the battery.

[0080] In this step, the battery can be a single-cell battery, that is, contains one battery cell, or the battery can be a multi-cell battery, that is, contains two or more ...

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Abstract

The embodiment of the invention discloses a battery voltage filtering method and device. The battery voltage filtering method comprises the steps that output voltage and output current of a battery are obtained; current compensation is conducted on the output voltage according to the output current to obtain first compensation voltage; weighted filtering is conducted on compensation voltage according to the first compensation voltage and the first compensation voltage of the last time to obtain first filtering voltage of this time. By adopting the scheme, the output voltage of a battery cell of a battery is compensated and filtered to obtain continuous, smooth and accurate voltage, accordingly a voltage analysis basis is provided for a flight control system, and the flight safety is improved.

Description

technical field [0001] The present invention relates to battery technology, in particular to a battery voltage filtering method and device. Background technique [0002] With the wide application of lithium batteries in the field of view of drones and model aircraft, power management solutions have become mainstream. The current smart power management solutions are mostly based on Texas Instruments (TI, Texas Instruments) chips with models BQ30Z55, BQ40Z50, BQ34Z100, etc. as the core, supplemented by peripheral devices such as processors. Among them, electrical parameters such as voltage, current, and remaining capacity of the battery are mainly provided by the electricity metering chip. The voltage of the battery cell directly reflects the current discharge capacity of the battery. In order to ensure the safe flight of the drone, the flight control system needs to obtain continuous, smooth and accurate battery voltage information for further analysis and processing. Howev...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/56
CPCG05F1/561
Inventor 邹锦林谷韬
Owner SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD