Calculation method and device for battery electricity quantity of battery system

A battery system and battery power technology, applied in the direction of measuring devices, measuring electrical variables, and measuring electricity, can solve problems such as battery voltage jumps, jumps, and inaccurate power, so as to eliminate jumps, improve calculation accuracy, and accurately The effect of the condition of the battery

Active Publication Date: 2014-07-09
BYD CO LTD
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Problems solved by technology

However, after the battery is connected to the device, the battery voltage will keep jumping during the operation of the device. If you directly use the voltage sampling value to look up the table to calculate the power, the obtained power will be inaccurate and will keep jumping. change, resulting in inaccurate query results

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  • Calculation method and device for battery electricity quantity of battery system
  • Calculation method and device for battery electricity quantity of battery system
  • Calculation method and device for battery electricity quantity of battery system

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Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0020] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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Abstract

The invention proposes a calculation method for a battery electricity quantity of a battery system. The method includes the following steps: a. obtaining a current sampling mode of the battery system, wherein the battery system has a plurality of sampling modes and each sampling mode has a corresponding sampling frequency and voltage value storage queue; b. according to a sampling frequency corresponding to the current sampling mode, sampling the voltages of the battery system and storing the sampled voltages to the voltage value storage queue; c. judging whether the voltage value storage queue is full; and d. if the voltage value storage queue is full, calculating a first sampling voltage success value according to the plurality of sampling voltages in the voltage value storage queue and calculating the battery electricity quantity according to the first sampling voltage success value. The calculation method for the battery electricity quantity of the battery system is capable of eliminating jumps and improving the detection precision of the electricity quantity. The invention also proposes a calculation device for the battery electricity quantity of the battery system.

Description

technical field [0001] The invention relates to the field of computer application technology, in particular to a method and device for calculating battery power of a battery system. Background technique [0002] The display principle of the battery power is generally to obtain the voltage sampling value of the battery through an analog-to-digital converter, and each voltage value corresponds to a power value. Knowing the current voltage value, the current power can be obtained by querying the voltage meter. However, after the battery is connected to the device, the battery voltage will keep jumping during the operation of the device. If you directly use the voltage sampling value to look up the table to calculate the power, the obtained power will be inaccurate and will keep jumping. change, resulting in inaccurate query results. Contents of the invention [0003] The present invention aims to solve at least one of the above-mentioned technical problems. [0004] Theref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
Inventor 林仁华
Owner BYD CO LTD
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