Device and method for detecting surplus capacity of power battery
A technology of remaining capacity and power battery, which is applied in the field of electricity and can solve the problems of low accuracy and poor real-time performance of the remaining capacity of the battery
Inactive Publication Date: 2016-04-06
NANJING INST OF TECH
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Problems solved by technology
[0003] The purpose of the present invention is to provide a device and method for detecting the remaining capacity of a power battery in view of the defects and deficiencies of the prior art, so as to solve the problems of low accuracy and poor real-time performance of the traditional method for detecting the remaining capacity of the battery
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[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the schematic embodiments and descriptions are only used to explain the present invention, but are not intended to limit the present invention.
[0035] Such as Figure 1-8 As shown, a device for detecting the remaining capacity of a power battery includes a battery, a single-chip microcomputer module, a display module, an external circuit signal detection module, and an alarm module. The interfaces at both ends are connected to the single-chip microcomputer module, and the external circuit signal detection module includes a current detection module, a voltage detection module and a temperature detection module, and is transmitted to the single-chip microcomputer module through the ADC digital-to-analog conversion chip, and the voltage register is provided on the single-chip microcomputer module , current register and temperature regist...
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The invention relates to a device and method for detecting a surplus capacity of a power battery. The device comprises a battery, a single-chip microcomputer module, a display module, an external circuit signal detection module and an alarm module, wherein the display module adopts an LED digital display tube, the display module and the external circuit signal detection module are connected to the single-chip microcomputer module by interfaces on two ends of the single-chip microcomputer module, the external circuit signal detection module comprises a current detection module, a voltage detection module and a temperature detection module and is transmitted to the single-chip microcomputer module by an ADC digital-to-analogue conversion chip, and a voltage register, a current register and a temperature register are disposed on the single-chip microcomputer module. Currents generated by the battery in a power supply main loop are connected; voltage data and temperature data are connected and then transmitted by the digital-to-analogue conversion chip to a single-chip microcomputer when the zero current is detected in a circuit; the surplus capacity is then calculated by a certain algorithm; and obtained results are finally sent to a display for display.
Description
【Technical field】 [0001] The invention relates to a device and method for detecting the remaining capacity of a power battery, belonging to the field of electrical technology. 【Background technique】 [0002] With the wide application of batteries, especially in the electric vehicle industry, the rapid development of this industry has brought people a deeper understanding of batteries. People not only enjoy the convenience of owning electric vehicles for travel, but are often troubled by problems such as charging speed, battery life, and service life of electric vehicle batteries. Especially people often need to know the real-time situation of the remaining capacity of the battery to travel more conveniently. Moreover, it is very important to have a more accurate understanding of the remaining capacity of the battery to prevent overcharging and over-discharging of the battery. Due to the complex relationship between battery parameters and remaining capacity, some traditiona...
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IPC IPC(8): G01R31/36
CPCG01R31/3842
Inventor 邓大为卢双
Owner NANJING INST OF TECH