A battery charging management system and a management method thereof

Abstract

The present application relates to a battery charging management system and a management method thereof, which includes a mobile device, a detection mechanism and a server, wherein the detection mechanism and the mobile device are both wirelessly connected to the server, the mobile device is used to send the battery type to the service, the battery type includes the battery capacity, the nominal voltage, the charging termination current and the charging termination voltage, the server records the relationship curve between the charging voltage and the power of each battery, the server sets the battery charging termination voltage according to the battery type, the detection mechanism is used to detect the battery charging voltage and charging current and send them to the server, and the server is also used to disconnect the connection between the battery and the charging device according to the battery charging termination voltage and the charging voltage. The present application has the effect of reducing the occurrence of battery overcharging.

Description

Technical Field

[0001] The present application relates to the field of battery charging, and in particular to a battery charging management system and a management method thereof. Background Art

[0002] Two-wheeled electric vehicles are generally used as a means of transportation for short-distance travel, and two-wheeled electric vehicles are generally powered by lead-acid batteries. The nominal voltage of lead-acid batteries is generally 36V, 48V, 60V and 72V.

[0003] When charging an existing battery, the charging device is connected to the battery for charging. The nominal voltage of the charging device is generally divided into 36V, 48V, 60V and 72V. The nominal voltage of the charging device needs to be equal to the nominal voltage of the battery for the battery to charge normally.

[0004] Nowadays, there are many electric vehicles, and each household may have multiple electric vehicles. There are also many types of charging equipment available on the market, which may cause users to use the wrong charging equipment to charge the battery. If the nominal voltage of the charging equipment is greater than the nominal voltage of the battery, the charging equipment will continue to charge the battery when the charging voltage reaches the charging termination voltage, causing the battery to overcharge, and then expand and damage, or even explode. Summary of the invention

[0005] In order to reduce the occurrence of battery overcharging, the present application provides a battery charging management system and a management method thereof.

[0006] The present application provides a battery charging management system and a management method thereof, which adopts the following technical solutions:

[0007] A battery charging management system includes a mobile device, a detection mechanism and a server, wherein the detection mechanism and the mobile device are both wirelessly connected to the server, the mobile device is used to send a battery type to a service, the battery type includes a battery capacity, a nominal voltage, a charge termination current and a charge termination voltage, the server has recorded a curve of the relationship between the charging voltage and the power of each battery, the server sets the charge termination voltage of the battery according to the battery type, the detection mechanism is used to detect the charge voltage and charge current of the battery and send them to the server, and the server is also used to open and close the connection between the battery and the charging device according to the charge termination voltage and the charging voltage of the battery.

[0008] By adopting the above technical solution, the user sends the battery type to the server through the mobile device, and the server searches for the corresponding relationship curve according to the battery type. Then the battery's charge termination voltage and charge termination current are set according to the battery type. The detection mechanism detects the battery's charge voltage and charge current, and sends them to the server. When the battery's charge voltage reaches the charge termination voltage, the server controls the detection device to disconnect the battery and the charging device, thereby stopping the battery from charging. Charging is automatically stopped after the battery's charge voltage reaches the charge termination voltage, thereby reducing the occurrence of battery overcharging due to taking the wrong charging device.

[0009] A battery charging management method comprises the following steps:

[0010] Acquire first battery information, where the first battery information is a preset battery type, and the battery type includes battery capacity, nominal voltage, charge termination current, and charge termination voltage;

[0011] Setting first threshold information according to first battery information, wherein the first threshold information is a charging termination voltage of the battery;

[0012] Acquire first voltage information, where the first voltage information is a current charging voltage of the battery;

[0013] Determine whether the first voltage information is less than the first threshold information; if so, return to obtain the first voltage information; if not, control the detection mechanism to disconnect the charging device from the battery.

[0014] By adopting the above technical solution, the user sends the battery type to the server through the mobile device, and the server sets the battery charging termination voltage according to the battery type. After the battery charging voltage reaches the charging termination voltage, the server controls the detection mechanism to disconnect the charging device from the battery, thereby reducing the occurrence of battery overcharging.

[0015] Optionally, before acquiring the first voltage information, second voltage information and increase information are acquired, wherein the increase information is a voltage value to be increased by the first voltage information, and the second voltage information is a charging voltage at which the battery starts to be charged;

[0016] When determining whether the first voltage information is less than the first threshold information, it is also determined whether the first voltage information is less than the sum of the second voltage information and the increase information; if so, returning to obtain the first voltage information; if not, obtaining the first power information, the first power information being the actual power charged after the first voltage information is increased to the sum of the second voltage information and the increase information;

[0017] The type of battery being charged is calculated based on the first voltage information, the second voltage information and the first power information, as well as the charging voltage and power relationship curve corresponding to each battery, and the first battery information and the first threshold information are updated, and then the first battery information is sent to the mobile device.

[0018] By adopting the above technical solution, when the battery is charged, the charging voltage of the battery is continuously increased. The server calculates the amount of electricity required for the voltage corresponding to the battery increase information, thereby determining the curve corresponding to the battery being charged in the relationship curve of each battery, and updates the first battery information and the first threshold information according to the relationship curve, thereby reducing the battery type error input by the user into the mobile device, and then the battery overcharge occurs. After updating the first battery information and the first threshold information, the server sends the updated first battery information to the mobile device, so as to facilitate the user to understand the battery type setting error.

[0019] Optionally, after determining that the first voltage information is less than the sum of the second voltage information and the increase information, obtaining second threshold information, where the second threshold information is a charging termination voltage of the battery;

[0020] Determine whether the first voltage information is less than the second threshold information; if so, execute to obtain the first power information; if not, execute and return to obtain the first voltage information.

[0021] By adopting the above technical solution, when the battery is charging, the remaining power of the battery may be large, and even the sum of the second voltage information and the increase information is greater than the charging termination voltage, so that the first voltage information is always lower than the sum of the second voltage information and the increase information. When the time when the first voltage information is lower than the sum of the second voltage information and the increase information reaches the first time threshold information, the first current information is directly obtained, so that the server can identify the battery type in time.

[0022] Optionally, calculating the type of battery being charged according to the first voltage information, the second voltage information, the first power information, and the charging voltage and power relationship curve corresponding to each battery, updating the first battery information and the first threshold information, and then sending the first battery information to the mobile device includes the following steps:

[0023] Retrieving a relationship curve of each battery, searching for a relationship curve having first voltage information and second voltage information in the relationship curve of each battery, and forming first curve information;

[0024] In the relationship curve corresponding to the first curve information, a difference between the electric quantity corresponding to the first voltage information and the electric quantity corresponding to the second voltage information in each relationship curve is calculated to form the second electric quantity information;

[0025] Calculate the difference between each first power information and the second power information, and form difference information;

[0026] Selecting a relationship curve corresponding to a value greater than zero and the smallest value in the difference information, and forming second curve information;

[0027] The first battery information and the first threshold information are updated according to the second curve information, and then the first battery information is sent to the mobile device.

[0028] By adopting the above technical solution, the server searches for a relationship curve having the first voltage information and the second voltage information. Then, the server calculates the amount of electricity required to increase the first voltage information to the second voltage information based on the relationship curve. Then, the amount of electricity corresponding to the battery being charged is subtracted from the amount of electricity displayed in the relationship curve. The server selects a value greater than zero in the difference information, and then selects the smallest value among the values ​​greater than zero. The relationship curve corresponding to the value greater than zero and the smallest value is the battery type corresponding to the battery being charged, so that the server can identify the battery type.

[0029] Optionally, after the first battery information and the first threshold information are updated according to the second curve information, health information is calculated, where the health information is a ratio of the first power information to the second power information;

[0030] Obtain a health threshold, which is a preset standard for battery scrapping; determine whether the health information is greater than the health threshold; if so, send damage information to the mobile device; if not, send health information to the mobile device.

[0031] By adopting the above technical solution, the first power information is the actual amount of power charged into the battery, and the second power information is the current that needs to be charged into the battery calculated in the relationship curve. The health information is obtained by calculating the ratio of the first power information and the second power information. When the health information is greater than the health threshold, it means that the battery is unhealthy and needs to be replaced, and the charged power is wasted. When the health information is less than the health threshold, it means that the battery is healthy and can continue to be used.

[0032] 1. Optionally, after determining that the first voltage information is greater than the first threshold information, first current information is obtained, where the first current information is a charging current of the battery when the first voltage information is greater than the first threshold information;

[0033] Acquire second current information and current threshold information, wherein the current threshold information is the charge termination current, and the second current information is the current charging current of the battery;

[0034] Determine whether the second current information is less than the current threshold information; if so, execute the control detection mechanism to disconnect the charging device from the battery; if not, obtain the second time threshold information and the first timing information, the second time threshold information is a preset time, and the first timing information is the time when the first voltage information is determined to be greater than the first threshold information;

[0035] Determine whether the first timing information is less than the second time threshold information; if so, return to obtain the second current information and the current threshold information; if not, obtain reduction information, the reduction information is the value by which the preset first current information needs to be reduced;

[0036] Determine whether the first current information minus the second current information is greater than the reduction information; if so, send a message to the mobile device that the charging voltage of the charging device is too high; if not, return to obtain the second current information and the current threshold information.

[0037] By adopting the above technical solution, when the second current information reaches the charging termination current, the server controls the detection mechanism to disconnect the charging device from the battery, thereby stopping the charging of the battery. When the standard voltage of the charging device is equal to the nominal voltage of the battery, the charging current reaches the charging termination current, and the charging voltage reaches the charging termination voltage, then the battery is stopped from being charged, thereby facilitating the battery to be fully charged.

[0038] When the second current information does not reach the charging termination current, the server checks whether the battery's charging current drops by more than the value corresponding to the preset reduction information after the battery has been charged for the time specified by the second time threshold information. When the battery's charging current drops by more than the reduction information, it indicates that the battery's nominal voltage is equal to the nominal voltage of the charging device, and the battery is charged normally. When the battery's charging current drops below the reduction information, it indicates that the battery's nominal voltage is less than the nominal voltage of the charging device, thereby determining whether the battery matches the charging device.

[0039] Optionally, after determining that the first voltage information is less than the first threshold information, obtain third time threshold information and second timing information, wherein the third time threshold information is the time required for the second voltage information to increase to the battery's charging termination voltage, and the second timing information is the timing that starts when the second voltage information is obtained; determine whether the second timing information is less than the third time threshold; if so, execute and return to obtain the first voltage information; if not, send a message to the mobile device that the charging voltage of the charging device is lower than the battery.

[0040] By adopting the above technical solution, when the battery is charging, if the first voltage information is still lower than the first threshold information after being charged for the time corresponding to the third time threshold, it means that the nominal voltage of the charging device is lower than the battery, so that the battery cannot continue to be charged.

[0041] In summary, the present application includes at least one of the following beneficial technical effects:

[0042] 1. The server detects the charging voltage and charging current of the battery through the detection mechanism, and then determines the relationship curve corresponding to the battery being charged from the relationship curve of each battery. After the relationship curve is determined, the server obtains the type of battery, thereby reducing the error in inputting the battery type. The server sets the charging termination voltage of the battery with the wrong battery type, and then the server sets the charging termination voltage and charging termination current according to the battery type. After the charging voltage of the battery reaches the charging termination voltage and the charging current is lower than the charging termination current, the battery is fully charged. The server controls the detection mechanism to disconnect the battery from the charging device, thereby stopping the battery from charging. If the nominal voltage of the charging device used is higher than the nominal voltage of the battery, the charging current will not drop below the charging termination current after the charging voltage of the battery reaches the charging termination voltage, so that the server continues to control the detection mechanism to disconnect the battery from the charging device, thereby reducing the occurrence of battery overcharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a principle block diagram of a management system according to an embodiment of the present application;

[0044] Figure 2 is a flowchart of steps S1-S17 of the management method of an embodiment of the present application;

[0045] Figure 3 is a flowchart of steps S1-S4 and steps S18-S24 of the management method of an embodiment of the present application;

[0046] Figure 4 is a flowchart of steps S24-S31 of the management method of an embodiment of the present application;

[0047] Figure 5 It is a flowchart of steps S32-S39 of the management method of an embodiment of the present application.

[0048] Explanation of the accompanying drawings: 1. Mobile device; 2. Server; 3. Detection mechanism; 31. On / off module; 32. Current detection module; 33. Voltage detection module; 34. MCU module; 35. Wireless module. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1-5 This application is described in further detail.

[0050] The embodiments of the present application disclose a battery charging management system and a management method thereof.

[0051] Reference Figure 1A battery charging management system includes a mobile device 1, a detection mechanism 3 and a server 2. The detection mechanism 3 includes a switching module 31, a current detection module 32, a voltage detection module 33, an MCU module 34 and a wireless module 35. The switching module 31, the wireless module 35, the current detection module 32 and the voltage detection module 33 are all electrically connected to the MCU module 34. The current detection module 32 is used to detect the charging current of the battery and send it to the MCU module 34. The voltage detection module 33 is used to detect the charging voltage of the battery and send it to the MCU module 34. The MCU module 34 controls the switching module 31, so that the battery and the charging device are connected or disconnected, thereby controlling the battery to charge or stop charging.

[0052] The wireless module 35 and the mobile device 1 are both wirelessly connected to the server 2. The mobile device 1 is a device such as a mobile phone and a tablet computer. The user inputs the battery type of the battery to be charged into the mobile device 1, and the mobile device 1 sends the battery type to the server 2. The battery type includes the battery capacity, the nominal voltage, the charging termination current and the charging termination voltage. The server 2 sends the charging termination voltage to the MCU module 34 according to the battery type, and the MCU starts the on-off module 31 according to the termination voltage. The server 2 also records the relationship curve between the charging voltage and the power of each battery.

[0053] Reference Figure 2 , Figure 3 A battery charging management method, using a battery management system of this embodiment, comprises the following steps:

[0054] S1. Obtain first battery information. Then execute step S2.

[0055] The user sends the battery type to the server 2 through the mobile device 1 according to the type of the battery being charged, so that the server 2 obtains the first battery information. The battery type includes the battery capacity, the nominal voltage, the charging termination current and the charging termination voltage.

[0056] S2. Set first threshold information according to the first battery information. Then execute step S3.

[0057] The server 2 extracts the charging termination voltage from the first battery information, thereby forming the first threshold information, that is, the first threshold information is the charging termination voltage in the first battery information.

[0058] S3, obtaining the second voltage information and the increase information, and then executing step S4.

[0059] The added information is the voltage value that the first voltage information needs to be increased by each time the detection is pre-entered in the server 2. The second voltage information is the charging voltage at which the battery starts to be charged. When the battery starts to be charged, the detection mechanism 3 detects the charging voltage of the battery and sends it to the server 2, so that the server 2 obtains the second voltage information.

[0060] S4, obtaining first voltage information. Then, executing steps S5 and S18.

[0061] The first voltage information is the current charging voltage of the battery. When the first voltage information needs to be obtained, the server 2 receives the charging voltage of the battery detected by the detection mechanism 3, thereby forming the first voltage information.

[0062] S5. Determine whether the first voltage information is less than the first threshold information; if so, execute step S15; if not, execute step S6.

[0063] S6, obtaining first current information. Then, executing step S7.

[0064] When the first voltage information is greater than the first threshold information, the server 2 detects the charging current of the battery through the detection mechanism 3, so that the server 2 obtains the first current information.

[0065] S7, obtaining the second current information and the current threshold information, and then executing step S8.

[0066] The current threshold information is the charging termination current of the battery. The second current information is the current charging current of the battery detected by the server 2 through the detection mechanism 3, thereby forming the second current information.

[0067] S8. Determine whether the second current information is less than the current threshold information; if so, execute step S9; if not, execute step S10.

[0068] S9, controlling the detection mechanism 3 to disconnect the charging device from the battery. Then the server 2 goes into standby mode.

[0069] The battery is generally charged at a constant current until the charging voltage reaches the charging termination voltage, and then the battery is charged at a constant voltage. After the charging current reaches the charging termination current, the battery is fully charged. When the first voltage information is greater than the first threshold information and the second current information is less than the current threshold information, it indicates that the battery is fully charged. Server 2 disconnects the connection between the charging device and the battery through detection mechanism 3, thereby stopping the battery from charging. After the battery stops charging, server 2 enters standby mode.

[0070] S10, obtaining second time threshold information and first timing information. Then executing step S11.

[0071] The second time threshold information is the time preset in the server 2, and the first timing information is the time when the timing starts when it is determined that the first voltage information is greater than the first threshold information.

[0072] S11, determine whether the first timing information is less than the second time threshold information; if so, return to execute step S7; if not, execute step S12.

[0073] S12, obtain reduction information. Then execute step S13

[0074] The reduction information is the current that the first current needs to be reduced, and a value is pre-set in the server 2 as the reduction information.

[0075] S13, determining whether the first current information minus the second current information is greater than the reduction information; if so, executing step S14; if not, executing step S7.

[0076] S14, sending a message that the charging voltage of the charging device is too high to the mobile device 1. Then the server 2 enters standby mode.

[0077] The battery is generally charged with a constant current until the charging voltage reaches the charging termination voltage, and then the battery is charged with a constant voltage. After the charging current reaches the charging termination current, the battery is fully charged. Therefore, after the first voltage information is greater than the first threshold information, the battery continues to be charged, and the charging current of the battery will gradually decrease. Server 2 starts timing to form the first timing information after the charging voltage of the battery reaches the charging termination voltage. After the first timing information reaches the second time threshold information, if the difference between the second current information and the first current information is less than the reduction information, it means that the nominal voltage of the charging device is higher than the nominal voltage of the battery, so that the charging voltage of the battery continues to be charged with a constant current after reaching the charging termination voltage. The standard voltage of the charging device is sent to the mobile device 1 through server 2, which is higher than the nominal voltage of the battery, thereby reminding the user to replace the charging device, thereby reducing the occurrence of battery overcharging.

[0078] S15, obtaining the third time threshold information and the second timing information, and then executing step S16.

[0079] After executing step S3, server 2 starts timing, so that server 2 obtains second timing information. Server 2 calculates the time required for the second voltage information to rise to the battery's charge termination voltage according to the relationship curve corresponding to the battery, so that server 2 obtains third time threshold information.

[0080] S16, determine whether the second timing information is less than the third time threshold; if so, execute step S4; if not, execute step S17.

[0081] S17, sending a signal to the mobile device 1 that the charging voltage of the charging device is lower than the battery. Then the server 2 goes into standby mode.

[0082] The battery is generally first charged at a constant current until the charging voltage reaches the charge termination voltage, and then the battery is charged at a constant voltage. After the charging current reaches the charge termination current, the battery is fully charged. When the nominal voltage of the charging device is lower than the nominal voltage of the battery, it is generally difficult for the charging device to charge the battery to reach the charge termination voltage of the battery. After the battery charging time reaches the third time threshold, when the battery does not reach the charge termination voltage, it means that the nominal voltage of the charging device is lower than the nominal voltage of the battery. Server 2 sends the information that the nominal voltage of the charging device is lower than the nominal voltage of the battery to mobile device 1, so as to facilitate users to replace the battery in time, and then facilitate fully charging the battery.

[0083] Reference Figure 3 , Figure 4 , S18, determine whether the first voltage information is less than the sum of the second voltage information and the increase information; if so, execute step S19; if not, execute step S21.

[0084] S19, obtaining the second threshold value information, and then executing step S20.

[0085] The server 2 determines the second threshold information according to the battery type of the battery, where the second threshold information is the charging termination voltage of the battery.

[0086] S20, determining whether the first voltage information is less than the second threshold information; if so, executing step S21; if not, executing step S4.

[0087] S21, obtaining first power information. Then executing step S22.

[0088] The server 2 detects the charging current of the battery through the detection mechanism 3, and then calculates the actual amount of electricity charged in the battery through the time required for the first voltage information to rise to the sum of the second voltage information and the increase information, so that the server 2 obtains the first electricity information.

[0089] S22, retrieve the relationship curve of each battery, search for the relationship curve with the first voltage information and the second voltage information in the relationship curve of each battery, and form the first curve information. Then execute step S23.

[0090] S23, in the relationship curve corresponding to the first curve information, calculate the difference between the power corresponding to the first voltage information and the power corresponding to the second voltage information in each relationship curve, and form the second power information. Then, execute step S24.

[0091] S24, calculating the difference between each first power information and the second power information, and forming difference information. Then, executing step S25.

[0092] S25, selecting the relationship curve corresponding to the value greater than zero and the smallest value in the difference information, and forming the second curve information. Then executing step S26.

[0093] S26, updating the first battery information and the first threshold information according to the second curve information, and then sending the first battery information to the mobile device 1. Then executing step S27.

[0094] S27, calculate health information, and then execute step S28.

[0095] Server 2 divides the first power information by the second power information to obtain health information. The larger the health information is, the unhealthier the battery is; the smaller the health information is, the higher the battery charging efficiency is.

[0096] S28, obtaining the health threshold, and then executing step S29.

[0097] The server 2 is pre-set with a health threshold, which is the standard for batteries to be scrapped due to aging.

[0098] S29, determine whether the health information is greater than the health threshold; if so, execute step S30; if not, execute step S31.

[0099] S30, sending damage information to the mobile device 1. Then the server 2 is on standby.

[0100] When the health information is greater than the health threshold, it indicates that the battery is aging and needs to be replaced. The server 2 sends damage information to the mobile device 1 to remind the user that the battery is unhealthy and needs to be replaced.

[0101] S31, sending health information to the mobile device 1. Then the server 2 is on standby.

[0102] When the health information is less than the health threshold, it means that the battery can still be used. The server 2 sends the health information to the mobile device 1, so that the user can understand the health of the battery.

[0103] Reference Figure 5 , when the battery starts charging, it also includes the following management methods:

[0104] S32, obtaining third voltage information. Then executing step S33.

[0105] The server 2 detects the current charging voltage of the battery through the detection mechanism 3, thereby obtaining the third voltage information.

[0106] S33, obtaining third power information and third timing information according to the second voltage information and the third voltage information, and then executing step S34.

[0107] The third power information is the power charged into the battery when the second voltage information is increased to the third voltage information. The server 2 detects the charging current of the battery through the detection mechanism 3, and then calculates the average value of the current. Then, the charging time required for the battery to increase from the second voltage information to the third voltage information is counted, and the average current is multiplied by the charging time to calculate the actual power charged into the battery, so that the server 2 can obtain the third power information. The third timing information is the time for the battery to be charged.

[0108] S34, calculating the amount of electricity charged into the battery from the relationship curve according to the second voltage information and the third voltage information, thereby obtaining fourth electricity information. Then, executing step S35.

[0109] The power corresponding to the third voltage information in the relationship curve is subtracted from the power corresponding to the second voltage information, thereby calculating the power charged into the battery, and then the server 2 obtains the fourth power information.

[0110] S35, calculating the difference between the third power information and the fourth power information and dividing the difference by the third timing information, thereby obtaining temperature information. Then, executing step S36.

[0111] The difference between the third power information and the fourth power information is the useless power, which will cause the battery to heat up. The useless power is then divided by the third timing information to obtain the useless power generated per unit time, so that the server 2 can obtain the temperature information.

[0112] S36, obtaining the temperature threshold, and then executing step S37.

[0113] The temperature threshold is a value preset in server 2 .

[0114] S37, determine whether the temperature information is greater than the temperature threshold; if so, execute step S38; if not, execute step S39.

[0115] S38, sending a warning of high battery temperature to the mobile device 1. Then, executing step S32.

[0116] When the temperature information is greater than the temperature threshold, it means that a lot of useless electricity is generated per unit time and the battery is heated, so that the server 2 sends an over-temperature warning to the mobile device 1.

[0117] S39, sending a prompt indicating that the battery temperature is normal to the mobile device 1. Then, executing step S32.

[0118] When the temperature information is lower than the temperature threshold, it means that less useless electricity is generated per unit time and the battery temperature is low, so that the server 2 sends a message that the temperature is normal to the mobile device 1 .

[0119] Most of the existing two-wheeled electric vehicles are powered by lead-acid batteries, and lithium batteries are gradually becoming popular. It is possible that the charging equipment of lead-acid batteries and lithium batteries are mixed. The relationship curve of the lithium battery is imported into the server 2, so as to reduce the overcharge explosion caused by the mixed use of the charging equipment of the lithium battery and the charging equipment of the lead-acid battery.

[0120] The implementation principle of a battery charging management system and its management method in an embodiment of the present application is: when the battery is charging, the detection device is connected between the charging device and the battery. Then the user sends the battery type to the server 2 through the mobile device 1. At the same time, after the server 2 detects the charging current and charging voltage of the battery, it calls up the relationship curve to confirm the battery type again, thereby reducing the situation where the server 2 sets the wrong charging termination voltage according to the battery type after the wrong battery type is entered. In addition, the occurrence of battery overcharge is reduced.

[0121] When the battery is charged, after the charging voltage of the battery reaches the charging termination voltage, the server 2 continues to determine whether the charging current begins to decrease. If the charging current can be reduced to below the charging termination current, the battery is fully charged, and the nominal voltage of the charging device is equal to the nominal voltage of the battery.

[0122] If the charging current cannot decrease after a certain period of time, it means that the nominal voltage of the charging device is higher than the nominal voltage of the battery. The server 2 directly disconnects the charging device and the battery through the detection mechanism 3, thereby reducing the occurrence of battery overcharge.

[0123] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A battery charging management method, applied to a battery charging management system, characterized in that: The battery charging management system comprises a mobile device (1), a detection mechanism (3) and a server (2), wherein the detection mechanism (3) and the mobile device (1) are both wirelessly connected to the server (2), the mobile device (1) is used to send a battery type to the server (2), the battery type comprising a battery capacity, a nominal voltage, a charging termination current and a charging termination voltage, the server (2) is recorded with a charging voltage and power relationship curve of each battery, the server (2) sets the battery charging termination voltage according to the battery type, the detection mechanism (3) is used to detect the battery charging voltage and charging current and send them to the server (2), and the server (2) is also used to open and close the connection between the battery and the charging device according to the battery charging termination voltage and the charging voltage; The battery charging management method comprises the following steps: Acquire first battery information, where the first battery information is a preset battery type, and the battery type includes battery capacity, nominal voltage, charge termination current, and charge termination voltage; Setting first threshold information according to first battery information, wherein the first threshold information is a charging termination voltage of the battery; Acquire first voltage information, where the first voltage information is a current charging voltage of the battery; Determine whether the first voltage information is less than the first threshold value information; if so, return to obtain the first voltage information; if not, control the detection mechanism (3) to disconnect the charging device from the battery; Before acquiring the first voltage information, acquiring second voltage information and increase information, wherein the increase information is the voltage value that needs to be increased by the first voltage information, and the second voltage information is the charging voltage at which the battery starts to be charged; When determining whether the first voltage information is less than the first threshold information, it is also determined whether the first voltage information is less than the sum of the second voltage information and the increase information; if so, returning to obtain the first voltage information; if not, obtaining the first power information, the first power information being the actual power charged after the first voltage information is increased to the sum of the second voltage information and the increase information; The type of battery being charged is calculated based on the first voltage information, the second voltage information and the first power information, as well as a charging voltage and power relationship curve corresponding to each battery, and the first battery information and the first threshold information are updated, and then the first battery information is sent to a mobile device (1).

2. A battery charging management method according to claim 1, characterized in that: After determining that the first voltage information is less than the sum of the second voltage information and the increase information, obtaining second threshold information, where the second threshold information is the charging termination voltage of the battery; Determine whether the first voltage information is less than the second threshold information; if so, execute to obtain the first power information; if not, execute and return to obtain the first voltage information.

3. A battery charging management method according to claim 1, characterized in that: Calculating the type of battery being charged according to the first voltage information, the second voltage information and the first power information, as well as the charging voltage and power relationship curve corresponding to each battery, updating the first battery information and the first threshold information, and then sending the first battery information to the mobile device (1), comprises the following steps: Retrieving a relationship curve of each battery, searching for a relationship curve having first voltage information and second voltage information in the relationship curve of each battery, and forming first curve information; In the relationship curve corresponding to the first curve information, a difference between the electric quantity corresponding to the first voltage information and the electric quantity corresponding to the second voltage information in each relationship curve is calculated to form the second electric quantity information; Calculate the difference between each first power information and the second power information, and form difference information; Selecting a relationship curve corresponding to a value greater than zero and the smallest value in the difference information, and forming second curve information; The first battery information and the first threshold value information are updated according to the second curve information, and then the first battery information is sent to the mobile device (1).

4. A battery charging management method according to claim 3, characterized in that: After updating the first battery information and the first threshold information according to the second curve information, calculating health information, where the health information is a ratio of the first power information to the second power information; Obtaining a health threshold, the health threshold being a pre-set standard for battery scrapping; determining whether the health information is greater than the health threshold; if so, sending damage information to the mobile device (1); if not, sending health information to the mobile device (1).

5. A battery charging management method according to claim 4, characterized in that: After determining that the first voltage information is greater than the first threshold information, obtaining first current information, where the first current information is the charging current of the battery when the first voltage information is greater than the first threshold information; Acquire second current information and current threshold information, wherein the current threshold information is the charge termination current, and the second current information is the current charging current of the battery; Determining whether the second current information is less than the current threshold information; If so, the control detection mechanism (3) is executed to disconnect the charging device from the battery; if not, the second time threshold information and the first timing information are obtained, wherein the second time threshold information is a preset time, and the first timing information is the time when the timing starts when it is determined that the first voltage information is greater than the first threshold information; Determine whether the first timing information is less than the second time threshold information; if so, return to obtain the second current information and the current threshold information; if not, obtain reduction information, the reduction information is the value by which the preset first current information needs to be reduced; Determine whether the first current information minus the second current information is greater than the reduction information; If yes, a message is sent to the mobile device (1) indicating that the charging voltage of the charging device is too high; if no, the message is returned to obtain the second current information and the current threshold value information.

6. A battery charging management method according to claim 4, characterized in that: After determining that the first voltage information is less than the first threshold information, obtaining third time threshold information and second timing information, wherein the third time threshold information is the time required for the second voltage information to rise to the battery charging termination voltage, and the second timing information is the timing that starts when the second voltage information is obtained; determining whether the second timing information is less than the third time threshold; if so, executing and returning to obtain the first voltage information; if not, sending a message to the mobile device (1) that the charging voltage of the charging device is lower than the battery.

Images