A method and device for generating and obtaining a physical examination report of a battery pack of an automobile

Abstract

The present invention provides a method and device for generating and obtaining a physical examination report of a battery pack of an automobile. The method includes: receiving a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and DC charging pile information; receiving charging physical examination data sent in real time by the DC charging pile in a battery physical examination mode during a charging period after the terminal sends the user physical examination request; parsing and processing the charging physical examination data according to the user physical examination request to obtain complete charging data; calculating the health index of the battery pack according to the complete charging data to obtain the calculation result corresponding to the health index; generating a battery physical examination report according to the calculation result corresponding to the health index. The scheme of the present invention can realize real-time communication between the DC charging pile and the cloud in the battery physical examination mode, and the cloud realizes physical examination of a single battery pack by transmitting and processing the data of a single battery pack and its corresponding DC charging pile.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and also to a method and device for generating and obtaining a physical examination report of a battery pack of a vehicle. Background Art

[0002] New energy vehicles rely on battery life, so the health of the battery is particularly important. In order to better ensure the health of the vehicle's battery pack, the battery pack needs to be examined to evaluate its usage and health status.

[0003] Existing DC charging piles either do not have the ability to communicate with the cloud, or have a long communication cycle with the cloud, making real-time data transmission impossible. In addition, they can only perform data statistics and analysis on battery packs of the same type. The data transmitted to the cloud is not sufficient to support the physical examination of a single battery pack. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method and device for generating and obtaining a physical examination report of a vehicle battery pack. Real-time communication between a DC charging pile and the cloud can be realized in the battery physical examination mode. The cloud can realize the physical examination of a single battery pack by transmitting and processing the data of a single battery pack and its corresponding DC charging pile.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] A method for generating a physical examination report of a battery pack of an automobile, applied to a cloud, the method comprising:

[0007] A user physical examination request sent by a receiving terminal is carried in the user physical examination request, where the vehicle information and the DC charging pile information are carried;

[0008] Receiving charging physical examination data sent in real time by the DC charging pile in the battery physical examination mode during the charging period after the terminal sends the user physical examination request;

[0009] According to the user's physical examination request, the charging physical examination data is parsed and processed to obtain complete charging data;

[0010] Calculating a health index of the battery pack according to the complete charging data, and obtaining a calculation result corresponding to the health index;

[0011] Generate a battery health check report based on the calculation results corresponding to the health indicators.

[0012] Optionally, receiving a user physical examination request sent by a terminal includes:

[0013] The receiving terminal sends a user physical examination request via SMS or target application.

[0014] Optionally, receiving charging physical examination data sent in real time by a DC charging pile in a battery physical examination mode within a charging period after the terminal sends the user physical examination request includes:

[0015] Receiving offline charging physical examination data sent by the DC charging pile;

[0016] The offline charging physical examination data is the charging physical examination data that is automatically sent after the DC charging pile stores the data through the local data storage function when the communication network signal is disconnected during the transmission of the charging physical examination data and the network communication signal is restored.

[0017] Optionally, the charging physical examination data is parsed to obtain complete charging data, including:

[0018] The charging physical examination data and the offline charging physical examination data sent by the DC charging pile are sorted in chronological order, and then analyzed and processed to obtain complete charging data.

[0019] Optionally, calculating a health index of a battery pack according to the complete charging data to obtain a calculation result corresponding to the health index includes:

[0020] Calculating the difference between the battery cell voltage in the complete charging data at the end of charging and the battery cell voltage at the beginning of charging;

[0021] Counting all battery temperature values ​​in the complete charging data within the charging period, and taking the highest value of all battery temperature values ​​as the highest battery temperature value;

[0022] Counting the current value of the battery during the charging period, and generating a battery current change curve corresponding to the current value;

[0023] Counting the voltage value of the battery during the charging period, and generating a battery voltage change curve corresponding to the voltage value;

[0024] Integrate the current value during the charging period to obtain the actual battery capacity value charged during the charging period;

[0025] The theoretical battery capacity that should be charged during the charging period is obtained by multiplying the nominal capacity of the battery by the percentage of the remaining battery capacity at the end of charging minus the percentage of the remaining battery capacity at the beginning of charging; and

[0026] The battery health is obtained by dividing the actual battery capacity charged during the charging period by the theoretical battery capacity that should be charged multiplied by 100%.

[0027] Optionally, a battery health check report is generated according to the calculation results corresponding to the health indicators, including:

[0028] The difference between the battery cell voltage at the end of the charging and the battery cell voltage at the beginning of the charging, the battery maximum temperature value, the battery current change curve, the battery voltage change curve, the actual battery capacity value charged during the charging period, the battery capacity value that should theoretically be charged during the charging period, and the battery health in the complete charging data are summarized to generate a battery physical examination report in the form of a document.

[0029] The present invention also provides a method for obtaining a physical examination report of a battery pack of a vehicle, which is applied to a terminal, and the method comprises:

[0030] Send user physical examination request to the cloud;

[0031] A battery health check report is downloaded from the cloud, wherein the cloud receives charging health check data sent in real time by a DC charging pile in a battery health check mode during a charging period after receiving a user health check request sent by a terminal, and parses and processes the charging health check data to obtain complete charging data; and calculates health indicators of the battery pack based on the complete charging data to obtain calculation results corresponding to the health indicators; and is generated based on the calculation results corresponding to the health indicators.

[0032] The present invention also provides a device for generating a physical examination report of a battery pack of an automobile, which is applied to the cloud, and the device comprises:

[0033] A transceiver module is used to receive a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and DC charging pile information; and receive charging physical examination data sent in real time by the DC charging pile in a battery physical examination mode during a charging period after the terminal sends the user physical examination request.

[0034] A processing module, used for parsing and processing the charging physical examination data according to the user physical examination request to obtain complete charging data;

[0035] Calculating a health index of the battery pack according to the complete charging data, and obtaining a calculation result corresponding to the health index;

[0036] Generate a battery health check report based on the calculation results corresponding to the health indicators.

[0037] The present invention also provides a device for obtaining a physical examination report of a battery pack of a vehicle, which is applied to a terminal, and the device comprises:

[0038] The transceiver module is used to send the user's physical examination request to the cloud;

[0039] The processing module is used to download a battery health check report from the cloud. The battery health check report is the charging health check data sent in real time by the DC charging pile in the battery health check mode during the charging period after the cloud receives the user health check request sent by the terminal, and the charging health check data is parsed and processed to obtain complete charging data; and the health index of the battery pack is calculated according to the complete charging data to obtain the calculation result corresponding to the health index; and it is generated according to the calculation result corresponding to the health index.

[0040] The present invention also provides a computer-readable storage medium, comprising: storing instructions, when the instructions are executed on a computer, the computer executes the method as described above.

[0041] The above solution of the present invention includes at least the following beneficial effects:

[0042] The above scheme of the present invention receives a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and DC charging pile information; receives charging physical examination data sent in real time by the DC charging pile in a battery physical examination mode during a charging period after the terminal sends the user physical examination request; parses and processes the charging physical examination data according to the user physical examination request to obtain complete charging data; calculates the health index of the battery pack according to the complete charging data to obtain the calculation results corresponding to the health index; generates a battery physical examination report according to the calculation results corresponding to the health index. Real-time communication between the DC charging pile and the cloud in the battery physical examination mode can be achieved, and the cloud can achieve physical examination of a single battery pack by transmitting and processing the data of a single battery pack and its corresponding DC charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a flow chart of a method for generating a physical examination report of a battery pack of an automobile according to the present invention;

[0044] Figure 2 It is a system schematic diagram of a method for generating a physical examination report of a battery pack of an automobile according to the present invention;

[0045] Figure 3 It is a flowchart of a method for obtaining a physical examination report of a battery pack of an automobile according to the present invention;

[0046] Figure 4 It is a module schematic diagram of a device for generating a physical examination report of a battery pack of an automobile according to the present invention. DETAILED DESCRIPTION

[0047] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0048] like Figure 1 As shown, an embodiment of the present invention provides a method for generating a physical examination report of a battery pack of a vehicle, which is applied to the cloud, and the method includes:

[0049] Step 11, receiving a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and DC charging pile information;

[0050] Step 12, receiving charging physical examination data sent in real time by the DC charging pile in the battery physical examination mode during the charging period after the terminal sends the user physical examination request;

[0051] Step 13, according to the user's physical examination request, the charging physical examination data is parsed and processed to obtain complete charging data;

[0052] Step 14, calculating a health index of the battery pack according to the complete charging data, and obtaining a calculation result corresponding to the health index;

[0053] Step 15: Generate a battery health check report based on the calculation results corresponding to the health indicators.

[0054] The charging physical examination data includes: battery physical examination data and historical charging data;

[0055] The vehicle information includes: the VIN (Vehicle Identification Number) of the vehicle to be inspected and the battery code and other information;

[0056] The DC charging pile information includes DC charging pile coding and other information;

[0057] The charging period refers to the time from the start of charging to the end of charging.

[0058] It should be noted that an intelligent control device is installed on the DC charging pile, and a battery health check mode and a normal charging mode are added to the DC charging pile. In the battery health check mode, the transmission rate of the charging health check data is in milliseconds. The DC charging pile can achieve real-time communication with the cloud in the battery health check mode.

[0059] In this embodiment of the present invention, by adding a battery health check mode, the communication speed between the DC charging pile and the cloud platform in the battery health check mode is accelerated, so that the charging health check data is transmitted to the cloud in real time. After the cloud receives the charging health check data, the battery pack health check algorithm of the DC charging protocol is used to calculate the calculation results corresponding to the health indicators of the battery pack, and finally a battery health check report is generated. In this way, real-time communication between the DC charging pile and the cloud in the battery health check mode can be achieved. The cloud can achieve a health check on a single battery pack by transmitting and processing the data of a single battery pack and its corresponding DC charging pile.

[0060] In an optional embodiment of the present invention, step 11 may include:

[0061] Step 111: receiving a user physical examination request sent by a terminal via a text message or a target application.

[0062] In this embodiment, the user can switch between the battery check mode and the normal charging mode by using the physical button on the DC charging pile, or use the APP (Application, target application) to locate the DC charging pile and switch between the battery check mode and the normal charging mode by using the virtual button;

[0063] When using the physical buttons, users need to send information such as the VIN, battery code, and DC charging pile code of the vehicle to be inspected to the cloud via SMS in advance;

[0064] When using the APP virtual buttons, users need to send information such as the VIN, battery code, and DC charging pile code of the vehicle to be inspected to the cloud through the APP in advance; so as to facilitate subsequent data processing in the cloud.

[0065] In another optional embodiment of the present invention, step 12 may include:

[0066] Step 121, receiving offline charging physical examination data sent by the DC charging pile;

[0067] Among them, the offline charging physical examination data is the charging physical examination data that is automatically sent after the DC charging pile stores the data through the local data storage function when the communication network signal is disconnected during the transmission of the charging physical examination data and the network communication signal is restored.

[0068] In this embodiment, during the transmission of the charging physical examination data, when the communication network signal is disconnected, the DC charging pile stores the offline charging physical examination data through the local data storage function. After the communication network signal is restored, the DC charging pile automatically resends the offline charging physical examination data to the cloud, thereby avoiding data loss and omission and ensuring the accuracy of the data in the physical examination report.

[0069] In another optional embodiment of the present invention, in step 13, the parsing and processing of the charging physical examination data to obtain complete charging data may include:

[0070] Step 131, the charging physical examination data sent by the DC charging pile and the charging physical examination data automatically sent by the DC charging pile after the communication network signal is restored are sorted in chronological order, and then analyzed and processed to obtain complete charging data.

[0071] In this embodiment, the cloud can automatically reissue the charging physical examination data of the DC charging pile after the communication network signal is disconnected and restored, and the charging physical examination data transmitted in real time when the communication network signal is normally connected is sorted in chronological order, and then analyzed and processed to obtain complete charging data. In this way, the cloud synthesizes the received charging physical examination data to form a complete data packet of all charging physical examination data in the charging period, and analyzes it, which can facilitate subsequent calculations.

[0072] In another optional embodiment of the present invention, step 14 may include:

[0073] Step 141, calculating the difference between the battery cell voltage in the complete charging data at the end of charging and the battery cell voltage at the start of charging;

[0074] Step 142, counting all battery temperature values ​​in the complete charging data within the charging period, and taking the highest value of all battery temperature values ​​as the highest battery temperature value;

[0075] Step 143, counting the current value of the battery during the charging period, and generating a battery current change curve corresponding to the current value;

[0076] Specifically, the current value may be sampled with 250 milliseconds as a sampling period during the charging period to obtain a current sampling value, and all current sampling values ​​during the charging period are sorted in chronological order to generate a current variation curve;

[0077] Step 144, counting the voltage value of the battery during the charging period, and generating a battery voltage change curve corresponding to the voltage value;

[0078] Specifically, the voltage value may be sampled with 250 milliseconds as a sampling period during the charging period to obtain a voltage sampling value, and all the voltage sampling values ​​during the charging period are sorted in chronological order to generate a voltage change curve;

[0079] Step 145, integrating the current value during the charging period to obtain the actual battery capacity value charged during the charging period;

[0080] Specifically, the calculation formula for the actual battery capacity value charged during the charging period is as follows:

[0081]

[0082] Wherein, Q1 is the actual battery capacity value charged during the charging period, t0 is the time when charging starts in the battery health check mode, t1 is the time when charging ends in the battery health check mode, and I t is the current value of the battery during the charging period, η is the temperature compensation coefficient, and dt is the integral sign.

[0083] Step 146, obtaining the battery capacity value that should be charged theoretically during the charging period by multiplying the nominal capacity value of the battery by the percentage of the remaining capacity of the battery at the end of charging minus the percentage of the remaining capacity of the battery at the beginning of charging; and

[0084] Specifically, the calculation formula for the battery capacity value that should be charged theoretically during the charging period is as follows:

[0085] ΔSOC=SOC1-SOC0

[0086] Q2=Q0×ΔSOC

[0087] Among them, Q2 is the battery capacity value that should be charged theoretically during the charging period, Q0 is the nominal capacity value of the battery, ΔSOC is the difference between the battery remaining capacity percentage at the end of charging and the battery remaining capacity percentage at the beginning of charging, SOC1 is the battery remaining capacity percentage at the end of charging, and SOC0 is the battery remaining capacity percentage at the beginning of charging.

[0088] Step 147, the battery health is obtained by dividing the actual battery capacity value charged during the charging period by the theoretical battery capacity value that should be charged multiplied by 100%.

[0089] Specifically, the calculation formula of the battery health is as follows:

[0090] SOH≈Q1Q2×100%

[0091] Among them, the SOH is the battery health, the Q1 is the actual battery capacity value charged during the charging period, and the Q2 is the battery capacity value that should be charged theoretically during the charging period.

[0092] In this embodiment, the cloud calculates the health index of the battery pack through the battery pack physical examination algorithm of the DC charging protocol to obtain the calculation result corresponding to the health index. This is simple and efficient.

[0093] In another optional embodiment of the present invention, step 15 may include:

[0094] Step 151, summarize the difference between the battery cell voltage at the end of the charging and the battery cell voltage at the beginning of the charging, the battery maximum temperature value, the battery current change curve, the battery voltage change curve, the actual battery capacity value charged during the charging period, the battery capacity value that should be theoretically charged during the charging period, and the battery health in the complete charging data to generate a battery physical examination report in the form of a document.

[0095] It should be noted that the cloud can send the battery health check report to a preset address of the cloud and generate a URL for the user to download, or send the battery health check report to a target application for the user to download.

[0096] In this embodiment, the calculation results corresponding to the health indicators are used to generate a battery health check report, which can provide users with a convenient and direct evaluation basis.

[0097] like Figure 2 As shown, in another optional specific embodiment of the present invention, a system for generating and obtaining a physical examination report of a battery pack of a vehicle may include: a DC charging pile, a terminal, a cloud connected to the DC charging pile and the terminal, and a battery detection server connected to the cloud;

[0098] The specific process of generating and obtaining the physical examination report of the battery pack of the vehicle may include: the user uses the SOC (State Of Charge, the percentage of remaining battery capacity) of the vehicle battery pack to less than 30% to ensure that the physical examination data is valid;

[0099] After the user drives the car to the DC charging pile, the user switches to the battery inspection mode through the physical button of the DC charging pile or the virtual button of the APP, and uses the terminal to send a user inspection request to the cloud through SMS or APP. The user inspection request carries information such as the vehicle identification code, battery code, and DC charging pile code of the vehicle to be inspected;

[0100] Here, after receiving the user's physical examination request sent by the terminal, the cloud can determine which car corresponds to which DC charging pile to ensure that the battery physical examination report corresponds to the battery pack one by one;

[0101] The DC charging pile sends the charging physical examination data in the charging period to the cloud in real time in the physical examination mode, and the charging physical examination data includes: battery pack physical examination data and historical charging data;

[0102] If the communication network signal is interrupted during the transmission of the charging physical examination data, the DC charging pile stores the charging physical examination data through the local data storage function. After the communication network signal is restored, the DC charging pile automatically resends the charging physical examination data to the cloud;

[0103] The cloud receives the charging physical examination data during the charging period sent in real time by the DC charging pile in the battery physical examination mode, as well as the charging physical examination data automatically reissued by the DC charging pile, and sorts the charging physical examination data sent in real time by the DC charging pile and the charging physical examination data automatically sent by the DC charging pile in chronological order, performs parsing and processing, and obtains complete charging data;

[0104] The cloud calculates the difference between the battery cell voltage in the complete charging data at the end of charging and the battery cell voltage at the beginning of charging;

[0105] The cloud counts all battery temperature values ​​in the complete charging data during the charging period, and takes the highest value among all the battery temperature values ​​as the highest battery temperature value;

[0106] The cloud samples the current value with a sampling period of 250 milliseconds during the charging period to obtain a current sampling value, and sorts all the current sampling values ​​during the charging period in chronological order to generate a current change curve;

[0107] The cloud samples the voltage value with a sampling period of 250 milliseconds during the charging period to obtain a voltage sampling value, and sorts all the voltage sampling values ​​during the charging period in chronological order to generate a voltage change curve;

[0108] Cloud via Calculate the actual battery capacity value charged during the charging period, wherein Q1 is the actual battery capacity value charged during the charging period, t0 is the time when charging starts in the battery health check mode, t1 is the time when charging ends in the battery health check mode, and I t is the current value of the battery during the charging period, η is the temperature compensation coefficient, and dt is the integral sign.

[0109] The cloud calculates the battery capacity value that should be charged theoretically during the charging period through ΔSOC=SOC1-SOC0, Q2=Q0×ΔSOC, wherein Q2 is the battery capacity value that should be charged theoretically during the charging period, Q0 is the nominal capacity value of the battery, ΔSOC is the difference between the battery remaining capacity percentage at the end of charging and the battery remaining capacity percentage at the beginning of charging, SOC1 is the battery remaining capacity percentage at the end of charging, and SOC0 is the battery remaining capacity percentage at the beginning of charging.

[0110] The cloud calculates the battery health by SOH≈Q1Q2×100%, where SOH is the battery health, Q1 is the actual battery capacity value charged during the charging period, and Q2 is the battery capacity value that should be charged theoretically during the charging period.

[0111] The cloud summarizes the difference between the battery cell voltage at the end of the charging and the battery cell voltage at the beginning of the charging, the battery maximum temperature value, the battery current change curve, the battery voltage change curve, the actual battery capacity value charged during the charging period, the battery capacity value that should be theoretically charged during the charging period, and the battery health in the complete charging data at the end of the charging, generates a battery physical examination report in the form of a document, and sends the battery physical examination report to the battery detection server, generates a URL (Uniform Resource Locator, Uniform Resource Locator) link, and sends it to the user's terminal, or sends it to the user's account through the APP.

[0112] The user can download or view the battery health check report online through the URL link in the SMS or the APP as needed.

[0113] In the above-mentioned embodiments of the present invention, the user can select a battery health check mode or a normal charging mode according to the needs. In the battery health check mode, the data transmission speed is accelerated, and real-time communication between the DC charging pile and the cloud can be realized in the battery health check mode. The cloud realizes the health check of a single battery pack by transmitting and processing the data of a single battery pack and its corresponding DC charging pile.

[0114] like Figure 3 As shown, an embodiment of the present invention further provides a method for obtaining a physical examination report of a battery pack of a vehicle, which is applied to a terminal, and the method includes:

[0115] Step 31, sending a user physical examination request to the cloud;

[0116] Step 32, downloading a battery health check report from the cloud, wherein the battery health check report is a charging health check data sent in real time by the DC charging pile in the battery health check mode during the charging period after the cloud receives the user health check request sent by the terminal, parsing and processing the charging health check data to obtain complete charging data; and calculating the health indicators of the battery pack based on the complete charging data to obtain the calculation results corresponding to the health indicators; and generated based on the calculation results corresponding to the health indicators.

[0117] like Figure 4 As shown, an embodiment of the present invention further provides a device 40 for generating a physical examination report of a battery pack of a vehicle, which is applied to the cloud, and the device 40 includes:

[0118] The transceiver module 41 is used to receive a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and DC charging pile information; and receive charging physical examination data sent in real time by the DC charging pile in a battery physical examination mode during a charging period after the terminal sends the user physical examination request.

[0119] A processing module 42, configured to parse and process the charging physical examination data according to the user physical examination request to obtain complete charging data;

[0120] Calculating a health index of the battery pack according to the complete charging data, and obtaining a calculation result corresponding to the health index;

[0121] Generate a battery health check report based on the calculation results corresponding to the health indicators.

[0122] Optionally, receiving a user physical examination request sent by a terminal includes:

[0123] The receiving terminal sends a user physical examination request via SMS or target application.

[0124] Optionally, receiving charging physical examination data sent in real time by a DC charging pile in a battery physical examination mode within a charging period after the terminal sends the user physical examination request includes:

[0125] Receiving offline charging physical examination data sent by the DC charging pile;

[0126] The offline charging physical examination data is the charging physical examination data that is automatically sent after the DC charging pile stores the data through the local data storage function when the communication network signal is disconnected during the transmission of the charging physical examination data and the network communication signal is restored.

[0127] Optionally, the charging physical examination data is parsed to obtain complete charging data, including:

[0128] The charging physical examination data and the offline charging physical examination data sent by the DC charging pile are sorted in chronological order, and then analyzed and processed to obtain complete charging data.

[0129] Optionally, calculating a health index of a battery pack according to the complete charging data to obtain a calculation result corresponding to the health index includes:

[0130] Calculating the difference between the battery cell voltage in the complete charging data at the end of charging and the battery cell voltage at the beginning of charging;

[0131] Counting all battery temperature values ​​in the complete charging data within the charging period, and taking the highest value of all battery temperature values ​​as the highest battery temperature value;

[0132] Counting the current value of the battery during the charging period, and generating a battery current change curve corresponding to the current value;

[0133] Counting the voltage value of the battery during the charging period, and generating a battery voltage change curve corresponding to the voltage value;

[0134] Integrate the current value during the charging period to obtain the actual battery capacity value charged during the charging period;

[0135] The theoretical battery capacity that should be charged during the charging period is obtained by multiplying the nominal capacity of the battery by the percentage of the remaining battery capacity at the end of charging minus the percentage of the remaining battery capacity at the beginning of charging; and

[0136] The battery health is obtained by dividing the actual battery capacity charged during the charging period by the theoretical battery capacity that should be charged multiplied by 100%.

[0137] Optionally, a battery health check report is generated according to the calculation results corresponding to the health indicators, including:

[0138] The difference between the battery cell voltage at the end of the charging and the battery cell voltage at the beginning of the charging, the battery maximum temperature value, the battery current change curve, the battery voltage change curve, the actual battery capacity value charged during the charging period, the battery capacity value that should theoretically be charged during the charging period, and the battery health in the complete charging data are summarized to generate a battery physical examination report in the form of a document.

[0139] It should be noted that the device is a device corresponding to the above method, and all implementation methods in the above method embodiments are applicable to the embodiments of the device and can achieve the same technical effects.

[0140] An embodiment of the present invention further provides a device for obtaining a physical examination report of a battery pack of a vehicle, which is applied to a terminal, and the device includes:

[0141] The transceiver module is used to send the user's physical examination request to the cloud;

[0142] The processing module is used to download a battery health check report from the cloud. The battery health check report is the charging health check data sent in real time by the DC charging pile in the battery health check mode during the charging period after the cloud receives the user health check request sent by the terminal, and the charging health check data is parsed and processed to obtain complete charging data; and the health index of the battery pack is calculated according to the complete charging data to obtain the calculation result corresponding to the health index; and it is generated according to the calculation result corresponding to the health index.

[0143] It should be noted that the device is a device corresponding to the above method, and all implementation methods in the above method embodiments are applicable to the embodiments of the device and can achieve the same technical effects.

[0144] The embodiment of the present invention further provides a computer-readable storage medium, including: storing instructions, when the instructions are executed on a computer, the computer executes the above method. All implementations in the above method embodiment are applicable to this embodiment, and can also achieve the same technical effect.

[0145] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0146] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0147] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0148] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0149] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0150] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0151] In addition, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it is understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0152] Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general device. Therefore, the purpose of the present invention can also be achieved by simply providing a program product containing a program code that implements the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order. Some steps can be performed in parallel or independently of each other.

[0153] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for generating a physical examination report of a battery pack of an automobile, characterized in that: Applied to the cloud, the method includes: A user physical examination request sent by a receiving terminal is carried in the user physical examination request, where the vehicle information and the DC charging pile information are carried; Receiving charging physical examination data sent in real time by the DC charging pile in the battery physical examination mode during the charging period after the terminal sends the user physical examination request, wherein the charging physical examination data is data when the battery remaining capacity percentage SOC of the vehicle battery pack is less than 30%; According to the user's physical examination request, the charging physical examination data is parsed and processed to obtain complete charging data; Calculating a health index of the battery pack according to the complete charging data, and obtaining a calculation result corresponding to the health index; Generate a battery health check report based on the calculation results corresponding to the health indicators; The receiving of charging physical examination data sent in real time by the DC charging pile in the battery physical examination mode within the charging period after the terminal sends the user physical examination request includes: Receiving offline charging physical examination data sent by the DC charging pile; The offline charging physical examination data is the charging physical examination data that is automatically sent after the DC charging pile stores the data through the local data storage function when the communication network signal is disconnected during the transmission of the charging physical examination data and the network communication signal is restored; The charging physical examination data is analyzed and processed to obtain complete charging data, including: The charging physical examination data and the offline charging physical examination data sent by the DC charging pile are sorted in chronological order, and then analyzed to obtain complete charging data; The DC charging pile includes a battery health check mode and a normal charging mode. In the battery health check mode, the transmission rate of the charging health check data is in milliseconds.

2. The method for generating a physical inspection report of a vehicle battery pack according to claim 1, characterized in that: The user physical examination request sent by the receiving terminal includes: The receiving terminal sends a user physical examination request via SMS or target application.

3. The method for generating a physical inspection report of a vehicle battery pack according to claim 1, characterized in that: Calculating the health index of the battery pack according to the complete charging data to obtain a calculation result corresponding to the health index includes: Calculating the difference between the battery cell voltage in the complete charging data at the end of charging and the battery cell voltage at the beginning of charging; Counting all battery temperature values ​​in the complete charging data within the charging period, and taking the highest value of all battery temperature values ​​as the highest battery temperature value; Counting the current value of the battery during the charging period, and generating a battery current change curve corresponding to the current value; Counting the voltage value of the battery during the charging period, and generating a battery voltage change curve corresponding to the voltage value; Integrate the current value during the charging period to obtain the actual battery capacity value charged during the charging period; The battery capacity value that should be charged theoretically during the charging period is obtained by multiplying the nominal capacity of the battery by the percentage of the remaining capacity of the battery at the end of charging minus the percentage of the remaining capacity of the battery at the beginning of charging; and The battery health is obtained by dividing the actual battery capacity charged during the charging period by the theoretical battery capacity that should be charged multiplied by 100%.

4. The method for generating a physical inspection report of a vehicle battery pack according to claim 3, characterized in that: Generate a battery health check report based on the calculation results corresponding to the health indicators, including: The difference between the battery cell voltage at the end of the charging and the battery cell voltage at the beginning of the charging, the battery maximum temperature value, the battery current change curve, the battery voltage change curve, the actual battery capacity value charged during the charging period, the battery capacity value that should theoretically be charged during the charging period, and the battery health in the complete charging data are summarized to generate a battery physical examination report in the form of a document.

5. A method for obtaining a physical examination report of a vehicle battery pack, characterized in that: Applied to a terminal, the method comprises: Send user physical examination request to the cloud; Downloading a battery health check report from the cloud, wherein the battery health check report is the charging health check data sent in real time by the DC charging pile in the battery health check mode during the charging period after the cloud receives the user health check request sent by the terminal, parsing and processing the charging health check data to obtain complete charging data; and calculating the health index of the battery pack according to the complete charging data to obtain the calculation result corresponding to the health index; the charging health check data generated according to the calculation result corresponding to the health index is the data when the battery remaining capacity percentage SOC of the vehicle battery pack is less than 30%; The receiving of charging physical examination data sent in real time by the DC charging pile in the battery physical examination mode during the charging period includes: Receiving offline charging physical examination data sent by the DC charging pile; The offline charging physical examination data is the charging physical examination data that is automatically sent after the DC charging pile stores the data through the local data storage function when the communication network signal is disconnected during the transmission of the charging physical examination data and the network communication signal is restored; The charging physical examination data is parsed and processed to obtain complete charging data, including: The charging physical examination data and the offline charging physical examination data sent by the DC charging pile are sorted in chronological order, and then analyzed to obtain complete charging data; The DC charging pile includes a battery health check mode and a normal charging mode. In the battery health check mode, the transmission rate of the charging health check data is in milliseconds.

6. A device for generating a physical examination report of a battery pack of an automobile, characterized in that: Applied to the cloud, the device comprises: A transceiver module is used to receive a user physical examination request sent by a terminal, wherein the user physical examination request carries vehicle information and DC charging pile information; receive charging physical examination data sent in real time by the DC charging pile in a battery physical examination mode during a charging period after the terminal sends the user physical examination request, wherein the charging physical examination data is data when the battery remaining capacity percentage SOC of the vehicle battery pack is less than 30%; A processing module, used for parsing and processing the charging physical examination data according to the user physical examination request to obtain complete charging data; Calculating a health index of the battery pack according to the complete charging data, and obtaining a calculation result corresponding to the health index; Generate a battery health check report based on the calculation results corresponding to the health indicators; The receiving of charging physical examination data sent in real time by the DC charging pile in the battery physical examination mode within the charging period after the terminal sends the user physical examination request includes: Receiving offline charging physical examination data sent by the DC charging pile; The offline charging physical examination data is the charging physical examination data that is automatically sent after the DC charging pile stores the data through the local data storage function when the communication network signal is disconnected during the transmission of the charging physical examination data and the network communication signal is restored; The charging physical examination data is analyzed and processed to obtain complete charging data, including: The charging physical examination data and the offline charging physical examination data sent by the DC charging pile are sorted in chronological order, and then analyzed to obtain complete charging data; The DC charging pile includes a battery health check mode and a normal charging mode. In the battery health check mode, the transmission rate of the charging health check data is in milliseconds.

7. A device for obtaining a physical examination report of a battery pack of an automobile, characterized in that: Applied to a terminal, the device comprises: The transceiver module is used to send the user's physical examination request to the cloud; A processing module is used to download a battery health check report from the cloud, wherein the battery health check report is the charging health check data sent in real time by the DC charging pile in the battery health check mode during the charging period after the cloud receives the user health check request sent by the terminal, and the charging health check data is parsed and processed to obtain complete charging data; and the health index of the battery pack is calculated according to the complete charging data to obtain the calculation result corresponding to the health index; the charging health check data is generated according to the calculation result corresponding to the health index, and is the data when the battery remaining capacity percentage SOC of the automobile battery pack is less than 30%; The receiving of charging physical examination data sent in real time by the DC charging pile in the battery physical examination mode during the charging period includes: Receiving offline charging physical examination data sent by the DC charging pile; The offline charging physical examination data is the charging physical examination data that is automatically sent after the DC charging pile stores the data through the local data storage function when the communication network signal is disconnected during the transmission of the charging physical examination data and the network communication signal is restored; The charging physical examination data is parsed and processed to obtain complete charging data, including: The charging physical examination data and the offline charging physical examination data sent by the DC charging pile are sorted in chronological order, and then analyzed to obtain complete charging data; The DC charging pile includes a battery health check mode and a normal charging mode. In the battery health check mode, the transmission rate of the charging health check data is in milliseconds.

8. A computer-readable storage medium, characterized in that: include: Instructions are stored, and when the instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 4 or the method according to claim 5.

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