Battery detection system and battery detection method

Abstract

The invention provides a battery detection system and a battery detection method, and belongs to the technical field of batteries. The battery detection system comprises a plurality of charging and discharging channels, a charging and discharging machine, a change-over switch and a controller, wherein each charging and discharging channel is connected with one battery; the charge-discharge motor comprises a charge-discharge interface; the change-over switch is connected between the plurality of charging and discharging channels and the charging and discharging interface; the controller is configured to be used for obtaining state parameters of the batteries, and based on the state parameters of the batteries, the change-over switch is controlled to selectively and electrically connect the charging and discharging interface with each charging and discharging channel in the plurality of charging and discharging channels so as to detect each battery connected with the plurality of charging and discharging channels.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery testing system and a battery testing method. Background Technology

[0002] Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of this sustainable development. For electric vehicles, battery technology is a crucial factor in their development.

[0003] Before a battery leaves the factory, it needs to undergo multiple performance tests to ensure its safe use. Battery charge and discharge testing is one of the most important of these tests. Summary of the Invention

[0004] This application aims to at least address one of the technical problems existing in the background art. Therefore, one objective of this application is to provide a battery testing system and battery testing method to improve the utilization rate of the charge / discharge channel.

[0005] An embodiment of the first aspect of this application provides a battery testing system. The battery testing system includes multiple charging / discharging channels, a charging / discharging machine, a switching switch, and a controller. Each charging / discharging channel is connected to a battery. The charging / discharging machine includes a charging / discharging interface. The switching switch is connected between the multiple charging / discharging channels and the charging / discharging interface. The controller is configured to acquire the battery's state parameters and, based on the battery's state parameters, control the switching switch to selectively electrically connect the charging / discharging interface to each of the multiple charging / discharging channels, so as to test each battery connected to the multiple charging / discharging channels respectively.

[0006] In the technical solution of this application embodiment, the controller controls the switching switch to selectively electrically connect the charging / discharging interface to each of the multiple charging / discharging channels, thereby achieving selective connection of the charging / discharging interface of one battery to multiple batteries and improving the utilization rate of the charging / discharging interface. Furthermore, the controller controls the switching switch based on the battery's state parameters, making the controller's control of the switching switch correlated with the state parameters of the batteries connected to the charging / discharging channels, thus making the controller's control of the charging / discharging interface connected by the switching switch more accurate.

[0007] In some embodiments, battery state parameters may include battery voltage and charging duration. The controller is configured to control a switch to switch the electrical connection between the charging / discharging interface and multiple charging / discharging channels based on at least one of the battery voltage and charging duration. Controlling the switch to switch the electrical connection between the charging / discharging interface and multiple charging / discharging channels based on at least one of the battery voltage and charging duration improves switching reliability, thereby enhancing the reliability of the battery detection system.

[0008] In some embodiments, the controller can be configured to switch the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel in response to a battery voltage greater than a preset voltage and / or a charging time greater than a first preset time. By comparing the battery voltage with a preset voltage and the charging time with the first preset time, the controller controls the switching process between the charging / discharging interface and the charging / discharging channel, simplifying the connection determination process and improving the detection efficiency of the battery detection system.

[0009] In some embodiments, the battery detection system further includes an alarm configured to issue an alarm in response to a charging time exceeding a first preset time and a battery voltage less than or equal to a preset voltage. By issuing an alarm through the alarm, the battery detection system allows the user to be promptly informed of battery charging / discharging faults and to take timely countermeasures.

[0010] In some embodiments, the battery status parameters include discharge duration. The controller is configured to switch the charge / discharge interface from electrical connection with the current charge / discharge channel to electrical connection with the next charge / discharge channel in response to a discharge duration less than a second preset duration. Determining whether to switch the charge / discharge interface from the current channel to the next based on the discharge duration can reduce the idle time of the charge / discharge interface and improve the detection efficiency of the battery detection system.

[0011] In some embodiments, the switch includes multiple relays. Integrating multiple relays into the switch allows for the integration of various functions, optimizes the battery detection system, and improves its reliability and flexibility.

[0012] In some embodiments, the controller is also configured to record battery status parameters. The battery detection system also includes a host computer, which is communicatively connected to the controller and configured to store and display the battery status parameters sent from the controller. By storing and displaying the battery status parameters sent from the controller, the host computer allows users to promptly obtain information about the battery's status, improving the user experience.

[0013] An embodiment of the second aspect of this application provides a battery testing method applied to a battery testing system. The battery testing system includes multiple charge / discharge channels, a charge / discharge machine, and a switching switch. Each charge / discharge channel is connected to a battery. The charge / discharge machine includes a charge / discharge interface, and the switching switch is connected between the multiple charge / discharge channels and the charge / discharge interface. The battery testing method includes: acquiring battery state parameters; and based on the battery state parameters, controlling the switching switch to selectively electrically connect the charge / discharge interface to each of the multiple charge / discharge channels, thereby testing each battery connected to each of the multiple charge / discharge channels.

[0014] In the technical solution of this application embodiment, the controller controls the switching switch to selectively electrically connect the charging / discharging interface to each of the multiple charging / discharging channels, thereby achieving selective connection of the charging / discharging interface of one battery to multiple batteries and improving the utilization rate of the charging / discharging interface. Furthermore, the controller controls the switching switch based on the battery's state parameters, making the controller's control of the switching switch correlated with the state parameters of the batteries connected to the charging / discharging channels, thus making the controller's control of the charging / discharging interface connected by the switching switch more accurate.

[0015] In some embodiments, the battery state parameters include battery voltage and charging duration. Based on the battery state parameters, controlling the switching switch to selectively electrically connect the charging / discharging interface to each of the plurality of charging / discharging channels includes: switching the electrical connection between the charging / discharging interface and the plurality of charging / discharging channels based on at least one of battery voltage or charging duration. The controller controlling the switching switch to switch the electrical connection between the charging / discharging interface and the plurality of charging / discharging channels based on at least one of battery voltage and charging duration can improve switching reliability, thereby improving the reliability of the battery detection system.

[0016] In some embodiments, switching the electrical connection between the charging / discharging interface and multiple charging / discharging channels based on at least one of battery voltage or charging time includes: in response to a battery voltage greater than a preset voltage and / or a charging time greater than a first preset time, switching the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel. The controller controls the switching of the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel by comparing the battery voltage to a preset voltage and the charging time to a first preset time. This simplifies the switching determination process between the charging / discharging interface and the charging / discharging channel and improves detection efficiency.

[0017] In some embodiments, the battery detection method further includes issuing an alarm in response to a charging time exceeding a first preset time and a battery voltage less than or equal to a preset voltage. By issuing an alarm, the user can be promptly informed of battery charging / discharging faults and take timely countermeasures.

[0018] In some embodiments, the battery's state parameters include the battery's discharge duration. Based on these state parameters, controlling the switching switch to selectively electrically connect the charging / discharging interface to each of the multiple charging / discharging channels includes: in response to a discharge duration less than a second preset duration, switching the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel. Determining whether to switch the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel based on the discharge duration can reduce the idle time of the charging / discharging interface and improve detection efficiency.

[0019] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0020] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0021] Figure 1 This is a schematic diagram of a battery detection system according to some embodiments of this application. Figure 1 ;

[0022] Figure 2 The flowchart of the battery detection method of some embodiments of this application Figure 1 ;

[0023] Figure 3 This is a schematic diagram of a battery detection system according to some embodiments of this application. Figure 2 ;

[0024] Figure 4 The flowchart of the battery detection method of some embodiments of this application Figure 2 .

[0025] Explanation of reference numerals in the attached figures:

[0026] 1000. Battery testing system;

[0027] 100. Charging / discharging channel; 200. Charger / discharger; 210. Charging / discharging interface; 300. Switch; 400. Controller; 500. Host computer; 600. Battery; 700. Alarm device. Detailed Implementation

[0028] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0030] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0031] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0033] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0034] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0035] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0036] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0037] Before leaving the factory, batteries undergo numerous performance tests to ensure safe use, with charge / discharge testing being a crucial component. In current battery testing, each charge / discharge machine has one charging / discharge port corresponding to one charging / discharge channel, and each channel connects to one battery to enable charge / discharge testing for each individual battery. The testing process for each battery primarily consists of two steps: charging and discharging. During the discharging process, the charging / discharging port remains idle without any voltage or current transmission, resulting in wasted charging / discharging ports.

[0038] Based on the above considerations, this application discloses a battery detection system. A controller operates a switching switch to selectively connect the charging / discharging interface to each of multiple charging / discharging channels, thereby achieving selective connection of one battery's charging / discharging interface to multiple batteries and improving the utilization rate of the charging / discharging interface. Furthermore, the controller controls the switching switch based on the battery's state parameters, linking the controller's control of the switching switch to the state parameters of the batteries connected to the charging / discharging channels, thus making the controller's control of the charging / discharging interface connected by the switching switch more accurate.

[0039] The battery testing system and method disclosed in this application can be used, but are not limited to, to test batteries on production lines, and can also be used to test batteries already in service. The batteries can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft.

[0040] This application provides a battery detection system 1000. Figure 1 This application provides a schematic diagram of a battery detection system 1000 according to some embodiments. Figure 1 ,like Figure 1 As shown, the battery testing system 1000 includes multiple charge / discharge channels 100, a charge / discharge machine 200, a switching switch 300, and a controller 400. Each charge / discharge channel 100 is connected to a battery 600. The charge / discharge machine 200 includes a charge / discharge interface 210. The switching switch 300 is connected between the multiple charge / discharge channels 100 and the charge / discharge interface 210. The controller 400 is configured to acquire the state parameters of the battery 600 and, based on the state parameters of the battery 600, control the switching switch 300 to selectively electrically connect the charge / discharge interface 210 to each of the multiple charge / discharge channels 100, so as to test each battery 600 connected to the multiple charge / discharge channels 100 respectively.

[0041] In the example, the charge / discharge channel 100 is used to connect to the battery 600 for easy detection of the battery 600, and each charge / discharge channel 100 can be connected to one battery 600. Each charge / discharge channel 100 can be assigned a number, and the number of each charge / discharge channel 100 can be associated with a battery 600.

[0042] In the example, the charger 200 may be provided with multiple charging / discharging ports 210, and any one of the charging / discharging ports 210 can be selectively electrically connected to multiple charging / discharging channels 100 via a switch 300. Thus, one charging / discharging port 210 can selectively charge multiple batteries 600 via the switch 300. The charger 200 may employ an AC (Alternating Current) / DC (Direct Current) converter and a DC / DC converter to convert the current into a charging current compatible with the charging / discharging ports 210 of the charger 200.

[0043] In the example, the controller 400 is signal-connected to the charging / discharging channel 100 and the switching switch 300. The controller 400 can be located in the host computer 500, and its control mode over the switching switch 300 can be adjusted through programming on the host computer 500. The controller 400 can also be a separately configured intermediate computer, communicating with the host computer 500. The controller 400 can be the controller 400 of the battery detection system 1000. This application embodiment does not limit the specific type of the controller 400; for example, it can be a programmable logic controller (PLC), an industrial computer, etc.

[0044] In the example, the controller 400 can acquire the state parameters of the battery 600 connected to the charging / discharging channel 100. These state parameters may include battery voltage, charging time, and discharging time. Voltage sampling can be performed using a voltage acquisition device (e.g., an analog-to-digital converter). The controller 400 and the voltage acquisition device can be connected via a wired control line, or wirelessly, provided the voltage acquisition device can transmit its acquired voltage values ​​to the controller 400. In one specific implementation, the controller 400 has a timing function. The controller 400 records the initial detection of the start of charging of the battery 600, the duration of charging, the end of charging, and the duration of discharging. This allows the controller 400 to control the switching switch 300 to selectively electrically connect the charging / discharging interface 210 to each of the multiple charging / discharging channels 100 based on the battery 600's state parameters.

[0045] In the example, after acquiring the state parameters of the battery 600, the controller 400 can control the switching switch 300 based on these parameters. The switching switch 300 selectively electrically connects the charging / discharging interface 210 to each of the multiple charging / discharging channels 100. In one embodiment, when the battery voltage of the battery 600 connected to the first charging / discharging channel 100 is greater than a preset voltage, the charging / discharging interface 210 is switched from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100. In another embodiment, when the charging time of the battery 600 connected to the first charging / discharging channel 100 is greater than a first preset time, the charging / discharging interface 210 is switched from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100. In yet another embodiment, when the discharging time of the battery 600 connected to the first charging / discharging channel 100 is less than a second preset time, the charging / discharging interface 210 is switched from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100. The process continues in turn until the battery 600 connected to the first charging / discharging channel 100 finishes discharging and the last battery 600 finishes charging. Then, the charging / discharging switch 300 switches back to the battery 600 in the first charging / discharging channel 100 to charge it.

[0046] In this embodiment, the controller 400 controls the switching switch 300 to selectively connect the charging / discharging interface 210 to each of the multiple charging / discharging channels 100, thereby achieving selective connection of the charging / discharging interface 210 of one battery 600 to multiple batteries 600 and improving the utilization rate of the charging / discharging interface 210. Furthermore, the controller 400 controls the switching switch 300 based on the state parameters of the battery 600, making the controller 400's control of the switching switch 300 correlated with the state parameters of the batteries 600 connected to the charging / discharging channels 100, thus making the controller 400's control of the charging / discharging interface 210 connected to the switching switch 300 more accurate.

[0047] According to some embodiments of this application, the state parameters of the battery 600 may include battery voltage and charging duration, and the controller 400 is configured to control the switch 300 to switch the electrical connection between the charging / discharging interface 210 and the plurality of charging / discharging channels 100 based on at least one of the battery voltage and charging duration.

[0048] In this example, the battery voltage can be the real-time voltage of battery 600 during charging and discharging. The battery voltage can be acquired using a voltage sensor. During charging, the voltage of battery 600 increases with the charging time until it reaches a preset voltage value. This voltage value depends specifically on the type of battery 600.

[0049] In the example, the charging time of battery 600 can be the total time from the moment battery 600 starts charging until the moment battery 600 finishes charging. The charging time of battery 600 can be collected by controller 400, which can record the time when the charging / discharging interface 210 begins to be electrically connected to the charging / discharging channel 100 as the charging start time of battery 600.

[0050] In one embodiment, the controller 400 can control the switch 300 to switch the electrical connection between the charging / discharging interface 210 and the multiple charging / discharging channels 100 based on the battery voltage. In another embodiment, the controller 400 can control the switch 300 to switch the electrical connection between the charging / discharging interface 210 and the multiple charging / discharging channels 100 based on the charging duration. In yet another embodiment, the controller 400 can control the switch 300 to switch the electrical connection between the charging / discharging interface 210 and the multiple charging / discharging channels 100 based on both the battery voltage and the charging duration.

[0051] In this embodiment, the controller 400 controls the switch 300 to switch the electrical connection between the charging / discharging interface 210 and the multiple charging / discharging channels 100 based on at least one of the battery voltage and charging time, which can improve the switching reliability and thus improve the reliability of the battery detection system 1000.

[0052] According to some embodiments of this application, the controller 400 can be configured to switch the charge / discharge interface 210 from being electrically connected to the current charge / discharge channel 100 to being electrically connected to the next charge / discharge channel 100 in response to a battery voltage greater than a preset voltage and / or a charging duration greater than a first preset duration.

[0053] In the example, the preset voltage can be a voltage set according to the type of battery 600, and different preset voltages can be set depending on the type of battery 600 connected to the charging / discharging interface 210. The first preset duration can be the time required for the battery 600 to charge to the preset voltage under normal charging conditions; the first preset duration can also be twice the time required for the battery 600 to charge to the preset voltage under normal charging conditions.

[0054] In one embodiment, the controller 400 can determine whether the battery 600 is fully charged based on whether the battery voltage is greater than a preset voltage. When the controller 400 determines that the battery voltage is greater than the preset voltage, meaning the battery 600 is fully charged, it can switch the charging / discharging interface 210 from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100. In another embodiment, the controller 400 can determine whether the battery 600 is fully charged based on whether the charging time is greater than a first preset time. When the controller 400 determines that the charging time is greater than the first preset time, it can switch the charging / discharging interface 210 from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100. In another embodiment, the controller 400 can determine whether the battery 600 is fully charged based on whether the battery voltage is greater than a preset voltage and whether the charging time is greater than a first preset time. When the controller 400 determines that the battery voltage is greater than the preset voltage and the charging time is greater than the first preset time, that is, when the battery 600 is fully charged, the controller can switch the charging and discharging interface 210 from being electrically connected to the current charging and discharging channel 100 to being electrically connected to the next charging and discharging channel 100.

[0055] In this embodiment, the controller 400 controls the charging / discharging interface 210 to switch from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100 by comparing the battery voltage with a preset voltage and the charging time with a first preset time. This simplifies the switching judgment process between the charging / discharging interface 210 and the charging / discharging channel 100 and improves the detection efficiency of the battery detection system 1000.

[0056] According to some embodiments of this application, the battery detection system 1000 further includes an alarm 700, which is configured to issue an alarm in response to a charging time greater than a first preset time and a battery voltage less than or equal to a preset voltage.

[0057] In this example, alarm 700 can be electrically connected to controller 400. Controller 400 can determine, based on the charging time of battery 600, that the charging time exceeds a first preset time. In this case, controller 400 transmits an alarm signal to alarm 700, which then issues an alarm to provide strong feedback to the user. The alarm can be an audible alarm, flashing lights, etc.

[0058] Alarm device 700 includes, but is not limited to: buzzer.

[0059] In this embodiment, the battery detection system 1000 issues an alarm through an alarm device, so that the user can be notified of the charging and discharging fault of the battery 600 in a timely manner and take timely countermeasures.

[0060] According to some embodiments of this application, the state parameters of the battery 600 include discharge duration. The controller 400 is configured to switch the charge / discharge interface 210 from electrical connection with the current charge / discharge channel 100 to electrical connection with the next charge / discharge channel 100 in response to the discharge duration being less than a second preset duration.

[0061] In the example, the second preset duration can be the duration for battery 600 to fully discharge. When the discharge time is less than the second preset duration, battery 600 is not fully discharged. Charging battery 600 at this time cannot effectively detect battery 600, and the detection results may contain errors. Waiting for battery 600 to fully discharge before charging would waste time. Therefore, when the discharge time of battery 600 is less than the second preset duration, the charging / discharging interface 210 can be switched from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100, so as to charge the battery 600 connected to the next charging / discharging channel 100.

[0062] In this embodiment, the need to switch the charging / discharging interface 210 from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100 is determined based on the discharge duration. This can reduce the idle time of the charging / discharging interface 210 and improve the detection efficiency of the battery detection system 1000.

[0063] According to some embodiments of this application, the switching switch 300 includes a plurality of relays.

[0064] In the example, the switching switch 300 may include a shift register, a voltage sampling relay, etc. The shift register can switch the charging / discharging interface 210 from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100. Specifically, the controller 400 can control the shift register to generate a switching signal to switch the charging / discharging interface 210 from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100. The voltage sampler can be used to sample the voltage of the battery 600 on the charging / discharging channel 100 currently electrically connected to the charging / discharging interface 210.

[0065] In this embodiment, multiple relays are integrated into the switch 300, which can integrate multiple functions, optimize the battery detection system 1000, and improve the reliability and flexibility of the battery detection system 1000.

[0066] According to some embodiments of this application, the controller 400 is also configured to record the status parameters of the battery 600. The battery detection system 1000 also includes a host computer 500, which is communicatively connected to the controller 400 and configured to store and display the status parameters of the battery 600 sent from the controller 400.

[0067] In this example, the communication connection between the host computer 500 and the controller 400 means that the host computer 500 can receive signals sent by the controller 400. The controller 400 and the host computer 500 can be connected via a wired control line or wirelessly, as long as the controller 400 can send the recorded status parameters of the battery 600 to the host computer 500. The host computer 500 stores and displays the status parameters of the battery 600 sent by the controller 400. The host computer 500 can store the status parameters of each battery 600 individually and can display the status parameters of multiple batteries 600 simultaneously. This application embodiment does not limit the specific type of the host computer 500. For example, it can be a personal computer (PC), a tablet computer (iPad), etc.

[0068] In this embodiment, the host computer 500 stores and displays the status parameters of the battery 600 sent from the controller 400, allowing users to promptly obtain the status parameters of the battery 600 and improving the user experience.

[0069] Another aspect of this application provides a battery testing method applied to a battery testing system 1000. The battery testing system 1000 includes multiple charge / discharge channels, a charge / discharge machine, and a switching switch. Each charge / discharge channel is connected to a battery. The charge / discharge machine includes a charge / discharge interface, and the switching switch is connected between the multiple charge / discharge channels and the charge / discharge interface. Figure 2 The flowchart of the battery detection method of some embodiments of this application Figure 1 ,like Figure 2 As shown, the battery detection method includes: step S210, obtaining the battery's state parameters; step S220, based on the battery's state parameters, controlling a switching switch to selectively electrically connect the charging / discharging interface to each of the multiple charging / discharging channels, so as to detect each battery connected to the multiple charging / discharging channels respectively.

[0070] Step S210: Obtain the battery status parameters.

[0071] In the example, the controller can acquire the state parameters of the battery connected to the charging / discharging channel. These parameters may include battery voltage, charging time, and discharging time. Voltage sampling can be performed using a voltage acquisition device. The controller and voltage acquisition device can be connected via a wired control line or wirelessly, as long as the voltage acquisition device can transmit its acquired voltage values ​​to the controller. In one specific implementation, the controller has a timing function. The controller records the initial detection of the battery starting to charge, the duration of charging, the end of charging, and the duration of discharging. This allows the controller to control the switching switch based on the battery's state parameters, selectively connecting the charging / discharging interface to each of the multiple charging / discharging channels.

[0072] Step S220: Based on the battery's state parameters, control the switching switch to selectively connect the charging / discharging interface to each of the multiple charging / discharging channels, so as to detect each battery connected to the multiple charging / discharging channels respectively.

[0073] In the example, after acquiring the battery's state parameters, the controller can control the switching switch based on these parameters. The switching switch selectively connects the charging / discharging interface to each of the multiple charging / discharging channels. In one embodiment, when the battery voltage of the battery connected to the first charging / discharging channel is greater than a preset voltage, the charging / discharging interface is switched from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel. In another embodiment, when the charging time of the battery connected to the first charging / discharging channel is greater than a first preset time, the charging / discharging interface is switched from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel. In yet another embodiment, when the discharging time of the battery connected to the first charging / discharging channel is less than a second preset time, the charging / discharging interface is switched from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel. This process continues in turn until the battery connected to the first charging / discharging channel finishes discharging and the last battery finishes charging, at which point the charging / discharging switching switch switches back to the battery in the first charging / discharging channel to charge it.

[0074] In this embodiment, a controller controls a switching switch to selectively connect the charging / discharging interface to each of the multiple charging / discharging channels, achieving selective connection of one battery's charging / discharging interface to multiple batteries and improving the utilization rate of the charging / discharging interface. Furthermore, the controller controls the switching switch based on the battery's state parameters, linking the controller's control of the switching switch to the state parameters of the batteries connected to the charging / discharging channels, thus making the controller's control of the charging / discharging interface connected by the switching switch more accurate.

[0075] According to some embodiments of this application, the battery's state parameters include battery voltage and charging duration. Step 220 includes: switching the electrical connection between the charging / discharging interface and multiple charging / discharging channels based on at least one of the battery voltage or charging duration.

[0076] In the example, the battery voltage can be the real-time voltage of the battery during charging and discharging. The battery voltage can be acquired by a voltage acquisition device. During the charging process, the battery voltage will increase with the charging time until it reaches a preset voltage value. This voltage value depends on the type of battery.

[0077] In this example, the battery charging time can be the total duration from the moment the battery begins charging until charging is complete. The charging time can be collected by the controller, which can record the time when the charging / discharging interface and charging / discharging channel begin electrical connection as the battery charging start time.

[0078] In one example, the controller can control a switch to change the electrical connection between the charging / discharging interface and multiple charging / discharging channels based on the battery voltage. In another example, the controller can control the switch to change the electrical connection between the charging / discharging interface and multiple charging / discharging channels based on the charging duration. In yet another example, the controller can control the switch to change the electrical connection between the charging / discharging interface and multiple charging / discharging channels based on both the battery voltage and the charging duration.

[0079] In this embodiment, the controller controls the switching switch to switch the electrical connection between the charging / discharging interface and multiple charging / discharging channels based on at least one of the battery voltage and charging time, which can improve the switching reliability and thus improve the reliability of the battery detection system.

[0080] According to some embodiments of this application, switching the electrical connection between the charging / discharging interface and multiple charging / discharging channels based on at least one of battery voltage or charging duration includes: in response to the battery voltage being greater than a preset voltage and / or the charging duration being greater than a first preset duration, switching the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel.

[0081] In the example, the preset voltage can be a voltage set according to the battery type, and different preset voltages can be set depending on the type of battery connected to the charging / discharging interface. The first preset time can be the time required for the battery to charge to the preset voltage under normal charging conditions; the first preset time can also be twice the time required for the battery to charge to the preset voltage under normal charging conditions.

[0082] In one embodiment, the controller can determine whether battery charging is complete based on whether the battery voltage is greater than a preset voltage. When the controller determines that the battery voltage is greater than the preset voltage, meaning the battery is fully charged, it can switch the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel. In another embodiment, the controller can determine whether battery charging is complete based on whether the charging time is greater than a first preset time. When the controller determines that the charging time is greater than the first preset time, it can switch the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel. In yet another embodiment, the controller can determine whether battery charging is complete based on whether the battery voltage is greater than a preset voltage and whether the charging time is greater than a first preset time. When the controller determines that the battery voltage is greater than the preset voltage and the charging time is greater than the first preset time, meaning the battery is fully charged, it can switch the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel.

[0083] In this embodiment, the controller controls the charging / discharging interface to switch from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel by comparing the battery voltage with a preset voltage and the charging time with a first preset time. This simplifies the switching judgment process between the charging / discharging interface and the charging / discharging channel and improves the detection efficiency.

[0084] According to some embodiments of this application, the battery detection method further includes: issuing an alarm in response to a charging time greater than a first preset time and a battery voltage less than or equal to a preset voltage.

[0085] In the example, the alarm can be issued via an alarm device, which can be electrically connected to the controller. The controller can determine if the charging time exceeds a first preset time based on the battery's charging duration. If so, the controller will send an alarm signal to the alarm device, which will then issue an alarm to provide strong feedback to the user. The alarm can be an audible alarm, a flashing light, etc.

[0086] In this embodiment of the application, an alarm is issued by an alarm device, so that the user can be notified of battery charging and discharging failure in a timely manner and take timely countermeasures.

[0087] According to some embodiments of this application, the battery status parameters include the battery discharge duration, and the aforementioned step S220 includes: in response to the discharge duration being less than a second preset duration, switching the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel.

[0088] In the example, the second preset duration can be the time required for the battery to fully discharge. If the discharge time is less than the second preset duration, the battery is not fully discharged. Charging the battery at this time will not allow for proper battery detection, and the detection results may contain errors. Waiting for the battery to fully discharge before charging would waste time. Therefore, when the battery discharge time is less than the second preset duration, the charging / discharging interface can be switched from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel, so as to charge the battery connected to the next charging / discharging channel.

[0089] In this embodiment, determining whether the charging / discharging interface needs to be switched from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel based on the discharge duration can reduce the idle time of the charging / discharging interface and improve detection efficiency.

[0090] The technical solution of this application will be further described below through some specific embodiments.

[0091] Figure 3 This is a schematic diagram of a battery detection system according to some embodiments of this application. Figure 2 ,like Figure 3 As shown, the battery detection system 1000 includes multiple charging / discharging channels 100, a charge / discharger 200, a switch 300, a controller 400, a host computer 500, and an alarm 700. The host computer 500 is communicatively connected to the controller 400. Each charging / discharging channel 100 is connected to a battery 600. The charge / discharger 200 includes a charging / discharging interface 210. The switch 300 is connected between the multiple charging / discharging channels 100 and the charging / discharging interface 210, and includes multiple relays.

[0092] The charger 200 can employ an AC / DC converter and a DC / DC converter to convert the current into a charging current compatible with the charging / discharging interface 210 of the charger 200.

[0093] The controller 400 is configured to acquire the battery voltage, charging time, and discharging time of the battery 600. The controller 400 is also configured to switch the charging / discharging interface 210 from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100 in response to the battery voltage being greater than a preset voltage and / or the charging time being greater than a first preset time. Similarly, it will switch the charging / discharging interface 210 from being electrically connected to the current charging / discharging channel 100 to being electrically connected to the next charging / discharging channel 100 in response to the discharging time being less than a second preset time.

[0094] The controller 400 is also configured to record the status parameters of the battery 600. The host computer 500 is configured to store the status parameters of the battery 600 sent from the controller 400 and to display the status parameters of the battery 600.

[0095] Figure 4 The flowchart of the battery detection method of some embodiments of this application Figure 2 ,like Figure 4 As shown, the battery testing method includes:

[0096] Step S410: Start charging. Proceed to step S420.

[0097] Step S420: Voltage is greater than a specified voltage. Obtain the battery voltage. If the battery voltage is greater than a preset voltage, proceed to step S450; if the battery voltage is less than a preset voltage, proceed to step S430.

[0098] Step S430: Charging time exceeds a specified duration. Obtain the battery charging time. In response to the charging time exceeding a first preset duration, execute steps S450 and S440.

[0099] Step S440: Alarm. An alarm is issued in response to a charging time exceeding a first preset time and a battery voltage less than or equal to a preset voltage.

[0100] Step S450: This battery charge is complete. Proceed to step S460.

[0101] Step S460: Switch channel. Switch the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel, and proceed to step S470.

[0102] Step S470: Is the battery in a waiting state? In response to the discharge duration being less than the second preset duration, switch the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel, and execute step S460; in response to the discharge duration being greater than or equal to the second preset duration, execute step S410.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery testing system, characterized in that, include: Multiple charging and discharging channels, each of which is connected to a battery; Charger / discharger, including charging / discharging interface; A switching switch is connected between the plurality of charging / discharging channels and the charging / discharging interface; The controller is configured to acquire the state parameters of the battery and, based on the state parameters of the battery, control the switching switch to selectively electrically connect the charging / discharging interface to each of the plurality of charging / discharging channels, so as to detect each battery connected to the plurality of charging / discharging channels respectively.

2. The battery testing system according to claim 1, characterized in that, The battery's state parameters include battery voltage and charging time; The controller is configured to control the switch to switch the electrical connection between the charge / discharge interface and the plurality of charge / discharge channels based on at least one of the battery voltage or the charging duration.

3. The battery testing system according to claim 2, characterized in that, The controller is configured to switch the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel in response to the battery voltage being greater than a preset voltage and / or the charging duration being greater than a first preset duration.

4. The battery testing system according to claim 3, characterized in that, The battery testing system also includes: An alarm is configured to issue an alarm in response to the charging duration being greater than a first preset duration and the battery voltage being less than or equal to the preset voltage.

5. The battery testing system according to claim 1, characterized in that, The battery's state parameters include discharge duration; The controller is configured to switch the charging / discharging interface from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel in response to the discharge duration being less than a second preset duration.

6. The battery testing system according to any one of claims 1 to 5, characterized in that, The switching device includes multiple relays.

7. The battery testing system according to any one of claims 1 to 5, characterized in that, The controller is also configured to record the state parameters of the battery, and the battery detection system further includes: The host computer, which is communicatively connected to the controller, is configured to store the status parameters of the battery sent from the controller and to display the status parameters of the battery.

8. A battery testing method, characterized in that, An application is made in a battery testing system, the battery testing system comprising: multiple charging / discharging channels, each charging / discharging channel connected to a battery; a charging / discharging machine including a charging / discharging interface; and a switching switch connected between the multiple charging / discharging channels and the charging / discharging interface, the battery testing method comprising: Obtain the state parameters of the battery; Based on the state parameters of the battery, the switching switch is controlled to selectively connect the charging / discharging interface to each of the multiple charging / discharging channels, so as to detect each battery connected to the multiple charging / discharging channels respectively.

9. The method according to claim 8, characterized in that, The battery's state parameters include battery voltage and charging time; controlling the switching switch to selectively electrically connect the charging / discharging interface to each of the plurality of charging / discharging channels based on the battery's state parameters includes: Based on at least one of the battery voltage or the charging duration, switch the electrical connection between the charging / discharging interface and the plurality of charging / discharging channels.

10. The method according to claim 9, characterized in that, Switching the electrical connection between the charging / discharging interface and the plurality of charging / discharging channels based on at least one of the battery voltage or the charging duration includes: In response to the battery voltage being greater than a preset voltage and / or the charging duration being greater than a first preset duration, the charging / discharging interface is switched from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel.

11. The method according to claim 10, characterized in that, The method further includes: An alarm is issued in response to the charging time being greater than the first preset time and the battery voltage being less than or equal to the preset voltage.

12. The method according to claim 8, characterized in that, The battery's state parameters include the battery's discharge duration. The step of controlling the switching switch to selectively electrically connect the charging / discharging interface to each of the plurality of charging / discharging channels based on the battery's state parameters includes: In response to the discharge duration being less than a second preset duration, the charging / discharging interface is switched from being electrically connected to the current charging / discharging channel to being electrically connected to the next charging / discharging channel.

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