Charge-discharge balance control device and method
A balance control, charge and discharge technology, applied in the direction of circuit devices, battery circuit devices, charge equalization circuits, etc., can solve the problems of shortened life of rechargeable batteries, improvement of charging or discharging methods of battery modules, and inability to know in real time. The effect of service life
Active Publication Date: 2020-03-13
STONE ENERGY TECH CORP
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[0007] However, the above-mentioned detection of the tightening degree of the screws is used as a preliminary method to determine the condition of the battery module. It needs to be checked by the user after entering the factory. The detection method needs to detect the physical state of the battery module or the battery module itself, so as to judge whether there will be electrical hazards of the rechargeable battery or calculate the remaining power, etc., and does not target the charging or discharging method of the battery module. to improve
[0008] Since the battery module is assembled from multiple rechargeable batteries, the remaining power of each rechargeable battery may be different during the charging and discharging process of the battery module, and rechargeable batteries with different power levels will cause some of the rechargeable batteries to overcharge during charging and discharging. Charging or over-discharging will cause the life of some rechargeable batteries to shorten rapidly, thus affecting the overall life of the battery module. Therefore, the battery modules of the prior art still need further improvement
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[0033] The following describes the technical means adopted by the present invention to achieve the predetermined purpose in conjunction with the drawings and preferred embodiments of the present invention.
[0034] See figure 1 As shown, the present invention is a charge and discharge balance control device and method. The charge and discharge balance control method controls the charge and discharge state of each rechargeable battery in a charge and discharge balance control device. The charge and discharge balance control method includes the following steps:
[0035] Read a measurement parameter of each rechargeable battery (S11);
[0036] Calculate a judgment parameter according to the measurement parameters of each rechargeable battery (S12);
[0037] Calculate the average value of the judgment parameters of the rechargeable batteries (S13);
[0038] Select a corresponding rechargeable battery according to the charge and discharge state of the charge and discharge balance control dev...
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The invention discloses a charging and discharging balance control device and method, and the method comprises the following steps: reading measurement parameters; calculating judgment parameters; judging the mean values of the parameters; selecting a corresponding rechargeable battery according to the charging and discharging state; calculating setting parameters; setting the turn-off time; stopping the charging and discharging state of the selected rechargeable battery for the turn-off time; and restarting the charging and discharging state of the selected rechargeable battery. Through the above steps, the rechargeable battery which performs excessive charging and discharge is selected, and the selected rechargeable battery stops the charging and discharging for the turn-off time, and then is restarted, thereby prolonging the service life of the rechargeable battery.
Description
Technical field [0001] The present invention is a charging and discharging device and method, especially a charging and discharging balance control device and method. Background technique [0002] Due to the rise of environmental awareness, electric vehicles that use electricity as an energy source have been developed for many years, and the battery modules of electric vehicles combine multiple rechargeable batteries to provide electricity to drive the electric vehicles. [0003] Generally, the assembly of the battery module is to connect the rechargeable batteries in series or parallel to each other through a connecting device to form the battery module. Therefore, the quality of the battery module needs to take into account the electrical conductivity of the connecting devices. , And the conductive quality of these connecting devices is not only related to their own conductivity, but also to the strength of the connection to each rechargeable battery. For example, when the recha...
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IPC IPC(8): H02J7/00
CPCH02J7/0014
Inventor 刘锦钏姚立和
Owner STONE ENERGY TECH CORP