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Power battery pack detecting, evaluating and equalizing charge system and applying method thereof

A power battery pack, balanced charging technology, applied in battery circuit devices, measuring electricity, current collectors, etc., can solve problems such as battery aging, and achieve the effect of prolonging service life, improving use efficiency, and improving overall performance and

Inactive Publication Date: 2010-12-15
SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Battery aging problem

Method used

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  • Power battery pack detecting, evaluating and equalizing charge system and applying method thereof
  • Power battery pack detecting, evaluating and equalizing charge system and applying method thereof
  • Power battery pack detecting, evaluating and equalizing charge system and applying method thereof

Examples

Experimental program
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specific Embodiment 1

[0042] Figure 1 to Figure 4 Constitute the specific embodiment 1 of the present invention.

[0043] refer to Figure 1 to Figure 3 , the present embodiment includes a battery pack detection part and an intelligent control part, the battery pack detection part includes a connector I, several voltage detection lines, and the intelligent control part includes a connector II, several voltage detection and equalization modules 1, a central Controller 2, current sensor 3, control display panel 4, load 5 and charger 6; input / output ends of several voltage detection and equalization modules 1 are respectively connected to connector II through wires; several voltage detection and equalization modules The input / output terminals of 1 are respectively connected with the central controller 2 through the communication bus, and the central controller 2 and I / O are respectively connected with the connector II, the current sensor 3, the control display panel 4, the load 5 and the charger 6, ...

specific Embodiment 2

[0050] This embodiment is used for a gasoline-electric hybrid passenger car with 28 lead-acid batteries.

[0051] The power battery pack used in the hybrid electric bus in this embodiment is composed of 28 120Ah lead-acid batteries connected in series, the rated voltage of the battery pack is 336V, and the rated capacity is 40.3KWh.

[0052] refer to Figure 1 to Figure 3 The circuit connection structure, the voltage detection line is connected to each electrode of the electric battery, and a total of 29 connection lines are required for 28 power batteries, which are recorded as B 1 , B 2 ,...,B 29 .

[0053] 28 temperature sensors 7 are used, and the sampling point of each sensor is close to the surface of each point pool. The sensor is selected from the 18B20 device of DALLAS Company. The device uses a 1-wire bus. The bus is composed of three wires, two of which are connected to the power supply and ground. line, and the other is a data line. All the voltage detection l...

specific Embodiment 3

[0060] This embodiment is used for an electric motorcycle with 4 lead-acid batteries.

[0061] In this embodiment, the power battery pack on the electric motorcycle is composed of four 20Ah lead-acid batteries connected in series, the rated voltage of the battery pack is 48V, and the rated capacity is 800Wh. Its implementation details are basically the same as those in Embodiment 1, and the difference from Embodiment 1 is that the detection part of the battery pack does not require a temperature sensor and a temperature sensor bus, and there are 5 voltage detection lines for the 4 power batteries, so the connection lines on the connector are 5 pieces; the detection index of the Hall transformer in the intelligent control part is -20A~20A, and the resistance value of the load is 2Ω. The charger is an adjustable DC stabilized power supply with an output index of 60V and 20A.

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PUM

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Abstract

The invention discloses a power battery pack detecting, evaluating and equalizing charge system and an applying method thereof. The power battery pack detecting, evaluating and equalizing charge system is characterized by comprising a battery pack detection part and an intelligent control part, wherein the battery pack detection part comprises a connector I and a plurality of voltage detection lines; the intelligent control part comprises a connector II, a plurality of voltage detecting and equalizing modules (1), a central controller, a current inducer (3), a control display panel (4), a load (5) and a charger (6); and the system is used for measuring voltage and temperature information of a power battery pack and measuring charge and discharge currents of the battery pack. The inventioncan be used for carrying out detecting, evaluating and equalizing charge on the power battery pack, helps a user know the current state of the power battery pack, improves the property of the power battery pack, and prolongs the service life.

Description

technical field [0001] The invention relates to a charging device for a battery pack, and is characterized in that it relates to a detection, evaluation and equalization charging system for a power battery pack and an application method thereof. It belongs to the technical field of power battery detection equipment. Background technique [0002] The types of power batteries include lithium-ion batteries, lead-acid batteries and nickel-metal hydride batteries. Because a single power battery often has the disadvantages of low voltage and low energy, the combination of multiple power batteries to form a power battery pack is becoming more and more widely used in electric vehicles, electric locomotives, electric ships, electric robots and IT backup. Power and other fields can often save energy and protect the environment. [0003] However, after the power battery pack is used for a period of time, it will encounter two problems: [0004] 1. Battery inconsistency. Due to diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00G01R31/36
Inventor 谭晓军刘海强宗志坚
Owner SUN YAT SEN UNIV
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