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Battery box SOC balance management system and control method

A technology of balanced management and control methods, applied in battery/fuel cell control devices, charge balance circuits, secondary batteries, etc., it can solve the problems of difficult and rapid heat dissipation of power batteries, inconsistent high and low voltages, etc., to achieve low cost, stable operation, Achieving the effect of balanced management

Active Publication Date: 2020-10-09
IANGSU COLLEGE OF ENG & TECH
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Problems solved by technology

[0005] Purpose of the invention: The purpose of the invention is to solve the deficiencies in the prior art, provide a battery box SOC balance management system and control method, solve the problem that the power battery is difficult to quickly dissipate heat, and at the same time, the balance system can solve the inconsistent high and low voltage of the battery Sexual problems, greatly improving the service life of the power battery

Method used

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  • Battery box SOC balance management system and control method
  • Battery box SOC balance management system and control method
  • Battery box SOC balance management system and control method

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Embodiment Construction

[0049] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. 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.

[0050] Such as Figure 1 to Figure 6 as well as Figure 8 A battery box SOC balance management system shown includes an equivalent model and a battery box structure. The equivalent model uses a second-order model, and the traditional second-order RC model is improved accordingly. The improved second-order model such as Figure 8 shown.

[0051] The battery box structure includes a temperature-controlled battery box, such as figure 1 As shown, the temperature-controlled battery box includes a battery tank 1, a temperature sensor 2, an air compression unit 7, a battery box 8, a cooling water tank 9 and an air duct 10, and the battery box 8 is arranged in a matrix with ...

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Abstract

The invention discloses a battery box SOC balance management system and a control method. The system comprises an equivalent model and a temperature control battery box, wherein the equivalent model adopts a second-order model, the temperature control battery box comprises battery jars, a temperature sensor, an air compression unit, a battery box, a cooling water tank and an air pipeline, multiplerows of mutually spaced battery jars are arranged in the battery box in a matrix mode, power batteries are placed in the battery jars, and the temperature sensor is arranged in battery box; the cooling water tank and the air pipeline are arranged in a gap between the battery jars, and the air pipeline is connected with the air compression unit; and the air compression unit comprises a pressure pump, a first heat exchanger, an expansion mechanism, a second heat exchanger, an air blowing mechanism and a thermal resistance heater. According to the battery box SOC balance management system and the control method, the heat dissipation problem of the power battery can be quickly solved, the operation is stable, the cost is low, the service life of the power battery is greatly prolonged, and meanwhile, the balance management of the battery pack is realized.

Description

technical field [0001] The invention relates to a battery box SOC balance management system and a control method, belonging to the field of new energy vehicles. Background technique [0002] With the advancement of science and technology, electric vehicles have been better developed in recent years, and the number of electric vehicles is still increasing exponentially year by year. Therefore, the temperature control of the power battery has become a more critical technology. [0003] The cooling of the power battery mostly adopts a single cooling method, without implementing layered cooling, the best cooling effect cannot be achieved. At the same time, few scholars have proposed temperature rise control for power batteries, which is especially important in cold weather. [0004] At present, the cooling of power batteries mostly adopts a single cooling method, without implementing layered cooling, and the best cooling effect cannot be achieved. At the same time, few schola...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/22B60L58/26B60L58/27B60L58/13H02J7/00H01M10/42
CPCB60L58/22B60L58/26B60L58/27B60L58/13H02J7/0014H02J7/0048H02J7/0071H01M10/425H01M2010/4271Y02E60/10Y02T10/70
Inventor 卢欣欣陈继永
Owner IANGSU COLLEGE OF ENG & TECH
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