Charging device, method for operating charging device, and charging system

Abstract

According to some embodiments disclosed in the present document, a charging device comprises: a communication module configured to receive battery data related to a battery of a vehicle collected from a data port of a vehicle by means of a collection device; a power supply module configured to supply charging power to the battery on the basis of charging settings; and a controller configured to derive management data about the battery on the basis of the battery data and the charging settings.

Description

Charging device, method of operating charging device and charging system

[0001] Cross-citation with related applications

[0002] This application claims the benefit of priority to Republic of Korea Patent Application No. 10-2023-0131184, filed September 27, 2023, the entire contents of which are incorporated herein by reference.

[0003] Technology field

[0004] Embodiments disclosed in this document relate to a charging device, a method of operating the charging device, and a charging system.

[0005] Recently, active research and development has been conducted on secondary batteries. The term "secondary battery" refers to a rechargeable battery, encompassing both conventional Ni / Cd and Ni / MH batteries, as well as recent lithium-ion batteries. Among secondary batteries, lithium-ion batteries can boast higher energy densities than conventional Ni / Cd and Ni / MH batteries. They can be manufactured in small and lightweight designs, making them highly versatile power sources for mobile devices. Recently, their use has expanded to include power sources for electric vehicles, attracting attention as a next-generation energy storage medium.

[0006] Charging stations for electric vehicle batteries are becoming more widespread. These stations can supply charging power to batteries according to regional charging protocols. Meanwhile, with growing interest in electric vehicle battery management, demand is growing for battery condition diagnosis and monitoring during charging.

[0007] One purpose of the embodiments disclosed in this document is to provide a charging device, an operating method of the charging device, and a charging system that can diagnose a battery condition while charging the battery at a charging station and provide the results to a driver.

[0008] The technical objectives of the embodiments disclosed in this document are not limited to the technical tasks mentioned above, and other technical tasks not mentioned will be clearly understood by those skilled in the art from the descriptions below.

[0009] According to some embodiments disclosed in the present document, a charging device includes a communication module configured to receive battery data about a battery of the vehicle collected from a data port of the vehicle by a collection device; a power supply module configured to provide charging power to the battery based on a charging setting; and a controller configured to derive management data about the battery based on the battery data and the charging setting.

[0010] In some embodiments, the controller is configured to compare expected data expected to be measured according to the charging settings with the battery data actually measured to generate deviation data, and to derive the management data based on the deviation data.

[0011] According to some embodiments, the controller is configured to compare a profile of a voltage fluctuation of the battery while providing the charging power with a reference profile to derive profile deviation data, and derive a residual value score of the battery based on the profile deviation data.

[0012] According to some embodiments, the controller is configured to derive charge amount deviation data by comparing the accumulated amount of output current according to the charge setting and the accumulated amount of input current according to the battery data, and derive a charge loss index of the battery based on the charge amount deviation data.

[0013] In some embodiments, the collection device is configured to collect the battery data from an on-board diagnostics (OBD) port of the vehicle and transmit the battery data to the charging device via wireless data communication.

[0014] According to some embodiments, the collection device provides at least one of a first vehicle assistance function for guiding a driving path of the vehicle and a second vehicle assistance function for capturing an image of the surroundings of the vehicle, and the collection device is connected to the OBD port and mounted on the vehicle.

[0015] According to some embodiments, the communication module is further configured to receive driving data regarding driving of the vehicle collected by the collection device, and the controller is further configured to adjust the management data based on the driving data.

[0016] According to some embodiments, the controller is configured to derive the management data using battery management software provided from a battery management server, wherein the management data includes a life score, a diagnostic grade, a remaining value score, and a charge loss index of the battery.

[0017] According to some embodiments disclosed in this document, a method of operating a charging device includes the steps of: receiving battery data regarding a battery of the vehicle collected from a data port of the vehicle by a collection device; providing charging power to the battery based on a charging setting; and deriving management data regarding the battery based on the battery data and the charging setting.

[0018] According to some embodiments, the step of deriving the management data includes the step of comparing expected data expected to be measured according to the charging settings with the battery data actually measured to generate deviation data; and the step of deriving the management data based on the deviation data.

[0019] According to some embodiments, the step of generating the deviation data includes the step of comparing a profile of a voltage fluctuation of the battery while providing the charging power with a reference profile to derive profile deviation data, and the step of deriving the management data includes the step of deriving a residual value score of the battery based on the profile deviation data.

[0020] According to some embodiments, the step of generating the deviation data includes a step of deriving charge amount deviation data by comparing the accumulated amount of output current according to the charge setting and the accumulated amount of input current according to the battery data, and the step of deriving the management data includes a step of deriving a charge loss index of the battery based on the charge amount deviation data.

[0021] According to some embodiments disclosed herein, a charging system includes a collection device configured to collect battery data about a battery of a vehicle from a data port of the vehicle; and a charging device configured to provide charging power to the battery based on a charging setting and to derive management data about the battery based on the battery data and the charging setting.

[0022] According to some embodiments, the charging device is configured to compare expected data expected to be measured according to the charging settings with the battery data actually measured to generate deviation data, and to derive the management data based on the deviation data.

[0023] According to some embodiments, the charging device is configured to compare a profile of a voltage fluctuation of the battery while providing the charging power with a reference profile to derive profile deviation data, and derive a residual value score of the battery based on the profile deviation data.

[0024] According to some embodiments, the charging device is configured to compare the accumulated amount of output current according to the charging setting and the accumulated amount of input current according to the battery data to derive charge amount deviation data, and to derive a charge loss index of the battery based on the charge amount deviation data.

[0025] According to some embodiments, the collection device is configured to collect the battery data from an OBD port of the vehicle and transmit the battery data to the charging device via wireless data communication.

[0026] According to some embodiments, the collection device provides at least one of a first vehicle assistance function for guiding a driving path of the vehicle and a second vehicle assistance function for capturing an image of the surroundings of the vehicle, and the collection device is connected to the OBD port and mounted on the vehicle.

[0027] According to some embodiments, the collection device is further configured to collect driving data regarding driving of the vehicle, and the charging device is further configured to adjust the management data based on the driving data.

[0028] According to some embodiments, the charging device is configured to derive the management data using battery management software provided from a battery management server, wherein the management data includes a life score, a diagnostic grade, a remaining value score, and a charge loss index of the battery.

[0029] According to the embodiments disclosed in this document, a charging device, an operating method of the charging device, and a charging system can be provided that can diagnose a battery condition while charging a battery at a charging station and provide the result to a driver.

[0030] The technical effects according to the embodiments disclosed in this document are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art according to the disclosure of this document.

[0031] FIG. 1 may illustrate elements constituting a battery management system according to some embodiments.

[0032] FIG. 2 may illustrate elements constituting a charging system according to some embodiments.

[0033] FIG. 3 may illustrate how a collection device, according to some embodiments, collects and transmits battery data.

[0034] FIG. 4 may illustrate information that a charging device, according to some embodiments, collects directly from a vehicle.

[0035] FIG. 5 may illustrate information that a charging device according to some embodiments collects through a collection device.

[0036] FIG. 6 may illustrate information that a charging device according to some embodiments may provide to a driver of a vehicle.

[0037] FIGS. 7 and 8 may illustrate a process for deriving management data based on battery data and charging settings according to some embodiments.

[0038] FIG. 9 may illustrate steps constituting a method of operating a charging system according to some embodiments.

[0039] Hereinafter, embodiments described in this document are described with reference to the attached drawings. However, this is not intended to limit the disclosure of this document to specific embodiments, and it should be understood that various modifications, equivalents, and / or alternatives of the embodiments described in this document are included.

[0040] The embodiments and terminology used in this document are not intended to limit the technical features described in this document to a specific embodiment, but should be understood to encompass various modifications, equivalents, or alternatives of the embodiment. In connection with the description of the drawings, similar reference numerals may be used to refer to similar or related components. The singular form of a noun corresponding to an item may include one or more of the item, unless the context clearly indicates otherwise.

[0041] In this document, the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can each include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", "first", "second", "A", "B", "(a)", or "(b)" may be used merely to distinguish the corresponding component from other corresponding components, and do not limit the corresponding components in any other respect (e.g., importance or order) unless specifically stated otherwise.

[0042] In this document, when a component (e.g., a first component) is referred to as being “connected,” “coupled,” or “connected,” with or without the terms “functionally” or “communicatively,” or “coupled” or “connected,” it means that the component can be connected to the other component directly (e.g., wired or wirelessly), or indirectly (e.g., via a third component).

[0043] The methods according to various embodiments disclosed in this document may be provided as a computer program product. The computer program product may be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory, CD-ROM), or may be distributed online (e.g., downloaded or uploaded) through an application store or directly between two driver devices. In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0044] According to the embodiments disclosed in this document, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to the embodiments disclosed in this document, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to the embodiments disclosed in this document, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0045] FIG. 1 may illustrate elements constituting a battery management system according to some embodiments.

[0046] Referring to FIG. 1, a battery management system (10) may include a vehicle (100), a charging system (200), and a battery management server (300). However, the present invention is not limited thereto, and some components may be omitted from the battery management system (10), or other general-purpose components may be further included in the battery management system (10).

[0047] The battery management system (10) may refer to a system for diagnosing and managing the status of a battery of a vehicle (100) while the battery of the vehicle (100) is being charged by a charging system (200) of an electric vehicle battery charging station. According to an embodiment, the charging system (200) and the battery management system (10) may exchange data via a wireless communication network.

[0048] The vehicle (100) may include an electric vehicle (EV), a hybrid electric vehicle (HEV), etc. that uses a secondary battery as a power source. The vehicle (100) may include a battery, and the driver of the vehicle (100) may visit a charging station to charge the battery.

[0049] The charging system (200) can charge the battery of the vehicle (100). While charging the battery, the charging system (200) can generate management data for managing the battery's condition and provide the data to the driver. According to an embodiment, the charging system (200) may include a power supply means for charging the battery and a data collection means for generating the management data.

[0050] The battery management server (300) can manage or assist the battery management operations of the charging system (200). The battery management server (300) can exchange data with the charging system (200) via wired / wireless communication. When management data for the battery of the vehicle (100) is derived, the results can be transmitted to the battery management server (300) and recorded in a database.

[0051] According to an embodiment, the charging system (200) can perform battery management operations by executing battery management software, and the battery management server (300) can provide update information of the battery management software to the charging system (200). According to an embodiment, the battery management server (300) can perform operations for managing the battery of the vehicle (100) on behalf of the charging system (200). The charging system (200) can transmit data required for deriving management data to the battery management server (300), and the battery management server (300) can directly process operations for deriving the management data based thereon, and then provide the result to the charging system (200).

[0052] FIG. 2 may illustrate elements constituting a charging system according to some embodiments.

[0053] Referring to FIG. 2, the charging system (200) may include a collection device (210) and a charging device (220). However, the present invention is not limited thereto, and some components may be omitted from the charging system (200), or other general-purpose components may be further included in the charging system (200).

[0054] The collection device (210) may be configured to collect battery data from a battery of the vehicle (100). In an embodiment, the vehicle (100) may have an on-board diagnostics (OBD) port configured to provide vehicle data regarding the vehicle (100), and the collection device (210) may collect the vehicle data through the OBD port. The vehicle data may include driving data regarding the driving of the vehicle (100) and battery data regarding the battery of the vehicle (100).

[0055] The charging device (220) can perform a first function of supplying charging power to the battery of the vehicle (100) and a second function of diagnosing and managing the state of the battery based on battery data collected from the battery of the vehicle (100) through the collection device (210). According to an embodiment, the charging device (220) can provide the driver of the vehicle (100) with information on the charging result and information on the state of the battery when charging of the battery is completed.

[0056] The collection device (210) and the charging device (220) can exchange data via wireless data communication. According to an embodiment, the collection device (210) and the charging device (220) can communicate via Bluetooth low energy, wireless LAN (WLAN, WiFi), etc. According to an embodiment, the collection device (210) can be connected to the OBD port of the vehicle (100) via a wire and can be mounted inside or outside the vehicle (100). When the vehicle (100) enters a charging station and is positioned near the charging device (220), the collection device (210) can transmit battery data to the charging device (220) via wireless data communication.

[0057] FIG. 3 may illustrate how a collection device, according to some embodiments, collects and transmits battery data.

[0058] Referring to FIG. 3, an exemplary structure in which a vehicle (100), a collection device (210), and a charging device (220) communicate with each other in a battery management system (10) can be illustrated.

[0059] The vehicle (100) may include a battery (110), a drive module (120), and a data port (130). The battery (110) may supply power to the drive module (120) and other electronic devices of the vehicle (100), and the drive module (120) may include a motor for driving the vehicle (100). According to an embodiment, the data port (130) may include an OBD port, and the OBD port may be connected to a connector (211) of a collection device (210).

[0060] The collection device (210) may include a connector (211) for communicating with the vehicle (100), a communication module (213) for communicating with the charging device (220), and a controller (212) for controlling the operations of the collection device (210). According to an embodiment, the connector (211) may collect battery data regarding the battery (110) and driving data of the vehicle (100) through a data port (130) in a diagnostic controller area network (DCAN) communication manner. The communication module (213) may include a short-range wireless communication module for communicating with the charging device (220).

[0061] The charging device (220) may include a display (221), a communication module (222), a controller (223), and a power supply module (224). The communication module (222) may receive battery data and driving data from the communication module (213) of the collection device (210) via short-range wireless communication. The controller (223) may perform a first function of supplying power to the battery (110) and a second function of diagnosing and managing the status of the battery (110). The power supply module (224) may include a charging connector for supplying power to the battery (110). The display (221) may display the results of performing the first and second functions to the driver of the vehicle (100).

[0062] The controller (212) of the collection device (210) and the controller (223) of the charging device (220) may include a memory and a processor. The processors of the controller (212) and the controller (223) may have a structure for executing instructions that implement operations of the charging system (200). The processor may be implemented as an array of a plurality of logic gates for processing various operations or as a general-purpose microprocessor, and may be composed of a single processor or multiple processors. For example, the processor may be implemented in the form of at least one of a micro control unit (MCU), a central processing unit (CPU), a graphics processing unit (GPU), and an application processor (AP).

[0063] The memory of the controller (212) and the controller (223) may be configured to store various data, commands, software, mobile applications, computer programs, etc. The memory may be configured separately from the processor or integrated with the processor. The processor of the controller (212) and the controller (223) may execute commands stored in the memory to process various operations. For example, the memory may be implemented as a non-volatile device such as a ROM, a PROM, an EPROM, an EEPROM, a flash memory, a PRAM, an MRAM, an RRAM, an FRAM, etc., or a volatile device such as a DRAM, an SRAM, an SDRAM, a PRAM, etc., and may be implemented in the form of an HDD, an SSD, an SD, a Micro-SD, etc., or a combination thereof.

[0064] The collection device (210) may be configured to collect battery data regarding a battery (110) of the vehicle (100) from a data port (130) of the vehicle (100). In an embodiment, the battery data may include voltage, current, temperature, etc. measured in cells, modules, packs, or other units of the battery (110).

[0065] The charging device (220) may be configured to provide charging power to the battery (110) based on charging settings. The charging settings may refer to conditions regarding charging of the battery (110) and may include charging speed, charging amount, charging time, charging rate, etc. The charging speed may include slow, fast, etc. In an embodiment, the charging settings may be selected by the driver of the vehicle (100).

[0066] The charging device (220) may be configured to derive management data regarding the battery (110) based on battery data and charging settings. While the charging settings may predetermine the charging specifications of the battery (110) before charging begins, the battery data may refer to data measured as a result of charging while charging power is supplied to the battery (110). Therefore, by considering the battery data and charging settings together, various management indicators for diagnosing and managing the condition of the battery (110) may be derived.

[0067] The charging device (220) may be configured to provide management data to the driver of the vehicle (100). In an embodiment, the charging device (220) may display the management data through a display (221). In an embodiment, the charging device (220) may provide the management data in the form of a notification message or the like through a mobile terminal of the driver of the vehicle (100).

[0068] In an embodiment, the charging device (220) may be configured to generate deviation data by comparing expected data according to a charging setting with actually measured battery data, and derive management data based on the deviation data. The expected data may refer to data expected to be measured from the battery (110) for a given charging setting. In an embodiment, the expected data may include charge history data at the beginning of life (BOL). Alternatively, the expected data may include average charge data for other batteries of the same model as the battery (110). Considering the deviation between the actually measured battery data and the expected data, management data that estimates the lifespan or performance degradation of the battery (110) when compared to the beginning of life, or an average value, etc. may be derived.

[0069] In an embodiment, the charging device (220) may be configured to compare a profile of a voltage fluctuation of the battery (110) while providing charging power with a reference profile to derive profile deviation data, and derive a residual value score of the battery (110) based on the profile deviation data. Reference may be made to FIG. 7, which will be described later, for the profile comparison. A voltage fluctuation profile may be generated by recording a voltage measurement value of the battery (110) while providing charging power, and a residual value score may be derived by comparing the voltage fluctuation profile with a reference profile. In an embodiment, the reference profile may include a charging profile recorded in a BOL state of the battery (110), an average profile of other batteries of the same model, etc.

[0070] According to an embodiment, the charging device (220) may be configured to compare the accumulated amount of output current according to the charging settings and the accumulated amount of input current according to the battery data to derive charge amount deviation data, and derive a charge loss index of the battery (110) based on the charge amount deviation data. With respect to the comparison of the accumulated current amounts, reference may be made to FIG. 7, which will be described later. The greater the difference between the charge amount output from the charging device (220) and the charge amount input to the battery (110), the higher the charge loss index may be.

[0071] According to an embodiment, the collection device (210) may be configured to collect battery data from the OBD port of the vehicle (100) and transmit the battery data to the charging device (220) via wireless data communication. The collection device (210) may collect battery data from the OBD port via DCAN communication and transmit the data to the charging device (220) via wireless data communication such as low power Bluetooth (BLE), WLAN, or WiFi.

[0072] According to an embodiment, the collection device (210) may provide at least one of a first vehicle assistance function for guiding a driving path of the vehicle (100) and a second vehicle assistance function for capturing an image of the surroundings of the vehicle (100), and the collection device (210) may be connected to an OBD port and mounted on the vehicle. According to an embodiment, the collection device (210) may be integrated with a navigation device that provides the first vehicle assistance function. Alternatively, the collection device (210) may be integrated with a black box device that provides the second vehicle assistance function. The collection device (210) may be attached to the interior or exterior of the vehicle (100). According to an embodiment, the collection device (210) may be mounted near an OBD port present in the interior of the vehicle (100).

[0073] According to an embodiment, the collection device (210) may be further configured to collect driving data regarding the driving of the vehicle (100), and the charging device (220) may be further configured to adjust management data based on the driving data. The driving data may include driving distance, speed, steering angle, acceleration information, deceleration information, etc. of the vehicle (100). For example, the life score of the battery (110) may be adjusted downward in consideration of the driving distance of the vehicle (100). Alternatively, the life score, diagnostic grade, residual value score, etc. of the battery (110) may be additionally adjusted based on the number of rapid accelerations or rapid decelerations of the vehicle (100).

[0074] According to an embodiment, the charging device (220) may be configured to derive management data using battery management software provided from the battery management server (300), and the management data may include a life score, a diagnostic grade, a remaining value score, and a charge loss index of the battery (110). The management data may be derived through the battery management software managed by the battery management server (300). The battery management software may be continuously updated to derive optimal management indices. Accordingly, the accuracy of the battery management software may be higher than the accuracy of the value estimated by the BMS of the battery (110). To this end, the battery management server (300) may provide update information of the battery management software to the charging device (220).

[0075] In an embodiment, instead of the charging device (220) deriving management data using battery management software, the battery management server (300) may be configured to directly derive management data. The charging device (220) may provide the battery management server (300) with battery data and charging settings necessary for deriving management data, and the battery management server (300) may derive management data based on these data and then provide the same to the charging device (220). In this manner, the computational burden of the charging device (220) may be reduced, and the hardware efficiency of the charging device (220) may be improved.

[0076] FIG. 4 may illustrate information that a charging device, according to some embodiments, collects directly from a vehicle.

[0077] Referring to FIG. 4, a vehicle (EV, 100) and a charging device (EVSE, electric vehicle supply equipment, 220) can exchange the minimum information necessary for charging using PLC (power line communication) communication in the case of the combined charging system (CCS) charging protocol. Meanwhile, other charging protocols, such as CHAdeMO, may utilize methods other than PLC communication.

[0078] In the case of V2G (vehicle to grid), the EV (100) can provide target values ​​for battery charging to the EVSE (220). The target values ​​for battery charging may include target current (EVTargetCurrent) and target voltage (EVTargetVoltage). According to an embodiment, the target values ​​for battery charging may be charging settings set to provide charging power to the battery (110).

[0079] Conversely, in the case of G2V (grid to vehicle), the EVSE (220) can provide battery charging limits to the EV (100). The battery charging limits can include a voltage upper limit (EVSEMaximumVoltageLimit), a current upper limit (EVSEMaximumCurrentLimit), a power upper limit (EVSEMaximumPowerLimit), etc. As illustrated, when only the EVSE (220) exists without a collection device (210), only the minimum information for battery charging is exchanged, making it difficult to derive management data regarding the battery (110).

[0080] FIG. 5 may illustrate information that a charging device according to some embodiments collects through a collection device.

[0081] Referring to FIG. 5, vehicle data (500) provided by the collection device (210) to the EV (100) may be illustrated. For example, the vehicle data (500) may include battery data from 1 to 8 and driving data from 9 and 10.

[0082] Among the vehicle data (500), battery data may include battery pack current, voltage, maximum temperature of the battery module, minimum temperature of the battery module, voltage list of battery cells, etc. The battery data may further include a state of charge (SOC) and a state of health (SOH). For example, the state of charge (SOC) and the state of health (SOH) may be estimated by the battery management system (BMS) of the battery (110).

[0083] Since battery data and driving data, such as vehicle data (500), can be provided to the charging device (220), the charging device (220) can compare the battery data with the charging settings to derive management data for the battery (110) and fine-tune the management data based on the driving data. According to an embodiment, the vehicle data (500) can be collected via the OBD port of the vehicle (100) using the DCAN communication method.

[0084] FIG. 6 may illustrate information that a charging device according to some embodiments may provide to a driver of a vehicle.

[0085] Referring to FIG. 6, an example screen (600) provided to a driver of a vehicle (100) through a display (221) of a charging device (220) may be illustrated. The example screen (600) may include charging result information (610) and battery management data (620). According to an embodiment, the example screen (600) may be displayed on a driver's mobile terminal instead of the display (221).

[0086] Charging result information (610) may include charging speed, charging time, charging amount, charging cost, etc. The driver can check whether the vehicle's (100) battery was charged smoothly through the charging result information (610).

[0087] Battery management data (620) may include a battery life score, a battery diagnostic grade, and a battery remaining value. The charging device (220) or the battery management server (300) may derive the battery management data (620) using battery management software. The battery life score may be expressed as a unit of state of health (SOH) ranging from 0% to 100%. The battery diagnostic grade may be classified into grades A, B, C, etc., based on the battery management software's own criteria. The battery remaining value may be expressed as a score ranging from 0 to 100. Meanwhile, the battery management data (620) may further include a charge loss indicator.

[0088] FIGS. 7 and 8 may illustrate a process for deriving management data based on battery data and charging settings according to some embodiments.

[0089] Referring to FIG. 7, a graph (700) representing battery data collected by a diagnostic device (210) may be illustrated.

[0090] The graph (700) may include a voltage fluctuation profile (710) and a current fluctuation profile (720, Icharge) of the battery (110) from a charging start time (ti) to a charging end time (tf). The voltage fluctuation profile (710) may display a fluctuation from a charging start voltage (Vi) at a charging start time (ti) to a charging end voltage (Vf) at a charging end time (tf).

[0091] The voltage fluctuation profile (710) can be compared to a reference profile. In an embodiment, the reference profile may be a profile measured at the BOL state of the battery (110) or an average profile of other batteries of the same model as the battery (110). The amount by which the voltage fluctuation profile (710) has shifted in parallel from the reference profile can be calculated, and based on this, a residual value score, a life score, a diagnostic grade, etc. of the battery (110) can be derived.

[0092] The current fluctuation profile (720) may represent the fluctuation of the current input to the battery (110) from the charging start time (ti) to the charging end time (tf). By accumulating the input current from the charging start time (ti) to the charging end time (tf), the current accumulation amount (Current Accumulation) may be calculated, which may be utilized to calculate the charging loss. According to an embodiment, the accumulated amount of the current output by the power supply module (224) of the charging device (220) may be compared with the accumulated amount of the input current, and a charging loss index of the battery (110) may be calculated based on the difference.

[0093] Referring to FIG. 8, a graph (800) representing voltages of a plurality of battery cells constituting a battery (110) may be illustrated.

[0094] The profiles (810) of the graph (800) may represent voltage fluctuations of each of the plurality of battery cells. Meanwhile, if a voltage spike (820) or voltage discontinuity (830) occurs in a first battery cell among the plurality of battery cells, the battery management software may diagnose that an abnormality has occurred in the first battery cell. In this manner, the battery management system (10) may diagnose battery cell abnormalities with a higher accuracy than the accuracy of abnormality detection of the BMS of the battery (110).

[0095] FIG. 9 may illustrate steps constituting a method of operating a charging system according to some embodiments.

[0096] Referring to FIG. 9, the operating method (900) of the charging device (220) may include steps (910) to (940). However, the present invention is not limited thereto, and some steps may be omitted or other general steps may be added, and the steps of the operating method (900) may be executed in a different order than the illustrated order.

[0097] The operating method (900) of the charging device (220) may be composed of steps that are processed in time series in the charging device (220). Therefore, even if the content is omitted below, the content described above for the charging device (220) may be equally applied to the operating method (900).

[0098] Steps (910) to (930) of the operating method (900) of the charging device (220) can be performed by the communication module, power supply module, and controller of the charging device (220).

[0099] In step (910), the charging device (220) can receive battery data about the vehicle's battery collected from the vehicle's data port by the collection device.

[0100] In step (920), the charging device (220) can provide charging power to the battery based on the charging settings.

[0101] In step (930), the charging device (220) can derive management data regarding the battery based on battery data and charging settings.

[0102] According to an embodiment, the operating method (900) of the charging device (220) may be implemented in the form of a computer program stored on a computer-readable storage medium. That is, the computer program may include instructions for implementing the operating method (900), and the instructions of the program may be stored on the computer-readable storage medium. The computer program may include a mobile application.

[0103] According to an embodiment, the computer-readable storage medium may include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs, DVDs, magneto-optical media such as floptical disks, and hardware devices specially configured to store and execute computer program instructions such as ROMs, RAMs, flash memories, and the like. The computer program instructions may include machine language codes generated by a compiler and high-level language codes that can be executed by a computer using an interpreter, etc.

[0104] The terms "include," "comprise," or "have" used herein, unless otherwise specifically stated, imply that the corresponding component may be included, and therefore should be interpreted to include other components rather than to exclude other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments disclosed in this document pertain, unless otherwise defined. Commonly used terms, such as terms defined in dictionaries, should be interpreted to be consistent with their contextual meaning in the relevant art, and shall not be interpreted in an idealized or overly formal sense, unless explicitly defined in this document.

[0105] The above description is merely an illustrative description of the technical idea disclosed in this document, and those skilled in the art to which the embodiments disclosed in this document pertain may make various modifications and variations without departing from the essential characteristics of the embodiments disclosed in this document. Therefore, the embodiments disclosed in this document are not intended to limit the technical idea of ​​the embodiments disclosed in this document, but to explain it, and the scope of the technical idea disclosed in this document is not limited by these embodiments. The protection scope of the technical idea disclosed in this document should be interpreted by the claims below, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of rights of this document.

[0106] [Explanation of symbols]

[0107] 10: Battery Management System 100: Vehicle

[0108] 110: Battery 120: Drive module

[0109] 130: Data port 200: Charging system

[0110] 210: Collection device 211: Connector

[0111] 212: Controller 213: Communication module

[0112] 220: Charging device 221: Display

[0113] 222: Communication module 223: Controller

[0114] 224: Power supply module 300: Battery management server

Claims

1. A communication module configured to receive battery data regarding a battery of the vehicle collected from a data port of the vehicle by a collection device; A power supply module configured to provide charging power to the battery based on a charging setting; and A charging device comprising a controller configured to derive management data regarding the battery based on the battery data and the charging settings.

2. In paragraph 1, The controller generates deviation data by comparing the expected data expected to be measured according to the charging settings with the battery data actually measured, A charging device configured to derive the management data based on the deviation data.

3. In paragraph 2, The controller compares the profile of the voltage fluctuation of the battery while providing the charging power with a reference profile to derive profile deviation data, A charging device configured to derive a residual value score of the battery based on the above profile deviation data.

4. In paragraph 2, The controller compares the accumulated amount of output current according to the charging setting and the accumulated amount of input current according to the battery data to derive charge amount deviation data, A charging device configured to derive a charge loss index of the battery based on the charge amount deviation data.

5. In paragraph 1, The above collection device collects the battery data from the OBD (on-board diagnostics) port of the vehicle, A charging device configured to transmit the battery data to the charging device via wireless data communication.

6. In paragraph 5, The above collection device provides at least one of a first vehicle assistance function for guiding the driving path of the vehicle and a second vehicle assistance function for capturing an image of the surroundings of the vehicle, A charging device, wherein the collection device is connected to the OBD port and mounted on the vehicle.

7. In paragraph 1, The above communication module is further configured to receive driving data regarding driving of the vehicle collected by the above collection device, A charging device, wherein the controller is further configured to adjust the management data based on the driving data.

8. In paragraph 1, The above controller is configured to derive the management data using battery management software provided from a battery management server, A charging device, wherein the management data includes a life score, a diagnostic rating, a residual value score, and a charge loss index of the battery.

9. A step of receiving battery data regarding the battery of the vehicle collected from the data port of the vehicle by a collection device; A step of providing charging power to the battery based on a charging setting; and A method of operating a charging device, comprising the step of deriving management data regarding the battery based on the battery data and the charging settings.

10. In paragraph 9, The steps for deriving the above management data are: A step of generating deviation data by comparing the expected data expected to be measured according to the above charging settings with the battery data actually measured; and A method of operating a charging device, comprising a step of deriving the management data based on the deviation data.

11. In paragraph 10, The step of generating the above deviation data includes a step of comparing a profile of a voltage fluctuation of the battery while providing the charging power with a reference profile to derive profile deviation data, A method of operating a charging device, wherein the step of deriving the management data includes a step of deriving a residual value score of the battery based on the profile deviation data.

12. In paragraph 10, The step of generating the above deviation data includes a step of deriving the charge amount deviation data by comparing the accumulated amount of output current according to the charge setting and the accumulated amount of input current according to the battery data, A method for operating a charging device, wherein the step of deriving the management data includes a step of deriving a charge loss index of the battery based on the charge amount deviation data.

13. A collection device configured to collect battery data regarding a battery of the vehicle from a data port of the vehicle; and A charging system comprising a charging device configured to provide charging power to the battery based on a charging setting and to derive management data regarding the battery based on the battery data and the charging setting.

14. In paragraph 13, The charging device generates deviation data by comparing the expected data expected to be measured according to the charging settings with the battery data actually measured, A charging system configured to derive the management data based on the above deviation data.

15. In paragraph 14, The charging device compares a profile of voltage fluctuation of the battery while providing the charging power with a reference profile to derive profile deviation data, A charging system configured to derive a residual value score of the battery based on the above profile deviation data.

16. In paragraph 14, The charging device compares the accumulated amount of output current according to the charging setting and the accumulated amount of input current according to the battery data to derive charge amount deviation data, A charging system configured to derive a charge loss index of the battery based on the charge amount deviation data.

17. In paragraph 13, The above collection device collects the battery data from the OBD port of the vehicle, A charging system configured to transmit the battery data to the charging device via wireless data communication.

18. In paragraph 17, The above collection device provides at least one of a first vehicle assistance function for guiding the driving path of the vehicle and a second vehicle assistance function for capturing an image of the surroundings of the vehicle, A charging system wherein the collection device is connected to the OBD port and mounted on the vehicle.

19. In paragraph 13, The above collection device is further configured to collect driving data regarding driving of the vehicle, A charging system, wherein the charging device is further configured to adjust the management data based on the driving data.

20. In paragraph 13, The charging device is configured to derive the management data using battery management software provided from a battery management server, A charging system, wherein the management data includes a life score, a diagnostic rating, a residual value score, and a charge loss index of the battery.

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