Vehicle-mounted battery maintenance method, device and management system

Abstract

The application relates to a vehicle-mounted battery maintenance method, device and management system. The method comprises the following steps: receiving historical behavior data of a vehicle-mounted battery sent by a vehicle-mounted battery management system, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery; determining whether the vehicle-mounted battery is in a state to be maintained based on the historical charging data and the historical discharging data; when the vehicle-mounted battery is in the state to be maintained, generating a maintenance strategy of the vehicle-mounted battery based on the historical charging data and the historical discharging data, so that the vehicle-mounted battery management system maintains the vehicle-mounted battery according to the maintenance strategy. The embodiment of the application can remind the user when the SOC correction of the vehicle-mounted battery has not been performed for a long time, ensure that the correction mechanism is triggered in time, and improve the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery maintenance, in particular to a vehicle-mounted battery maintenance method, device and management system. BACKGROUND

[0002] With the rapid development of new energy technology, pure electric vehicles and hybrid vehicles have become common means of transportation for people.

[0003] The storage batteries used in the pure electric vehicles and hybrid vehicles on the market are mostly iron lithium batteries. Due to the characteristics of the iron lithium battery, when the SOC (State of Charge, also known as the current remaining capacity) thereof is between 30% and 80%, the terminal voltage-SOC curve thereof is approximately a straight line. Only in the high SOC interval and the low SOC interval, the trend of SOC change with voltage is more obvious. Since the SOC correction point is generally below 30% SOC or at full charge, due to the range anxiety and the charging time limit, most users use the charging and discharging interval of the electric vehicle between [30%, 90%] SOC, which cannot trigger the SOC correction strategy. With the increase of time, the error of the ampere-hour integral method will be accumulated, which will gradually increase the error of the estimated SOC, affecting the user experience. SUMMARY

[0004] To solve or partially solve the problems in the related art, the present application provides a vehicle-mounted battery maintenance method, device and management system, which can remind the user when the vehicle-mounted battery has not been corrected for a long time, ensure that the correction mechanism is triggered in time, and improve the user experience.

[0005] The first aspect of the present application provides a vehicle-mounted battery maintenance method, comprising:

[0006] receiving vehicle-mounted battery historical behavior data sent by a vehicle-mounted battery management system, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery;

[0007] determining whether the vehicle-mounted battery is in a state to be maintained based on the historical charging data and the historical discharging data;

[0008] when the vehicle-mounted battery is in the state to be maintained, generating a maintenance strategy for the vehicle-mounted battery based on the historical charging data and the historical discharging data, so that the vehicle-mounted battery management system maintains the vehicle-mounted battery according to the maintenance strategy.

[0009] As a possible implementation manner of the present application, in this implementation manner, after receiving the vehicle-mounted battery historical behavior data sent by the vehicle-mounted battery management system, the method comprises:

[0010] The historical charging data and the historical discharging data are recorded in the order of the receiving time of the historical behavior data.

[0011] As a possible implementation of the present application, after receiving the historical behavior data of the vehicle-mounted battery, the method comprises:

[0012] The method further comprises:

[0013] Based on the historical charging data, a first duration of the vehicle-mounted battery continuously being in the un-full charging state is counted, and based on the historical discharging data, a power supply driving mileage of the vehicle-mounted battery in the first duration is counted, the power supply driving mileage referring to a driving mileage of a vehicle powered by the vehicle-mounted battery.

[0014] Based on the first duration and the power supply driving mileage, it is determined whether the vehicle-mounted battery is in the state of being in need of maintenance.

[0015] As a possible implementation of the present application, after receiving the historical behavior data of the vehicle-mounted battery, the method comprises:

[0016] Step S1, receiving, at the end of this time of charging of the vehicle-mounted battery, the current state of charge of the vehicle-mounted battery sent by the vehicle-mounted battery management system;

[0017] Step S2, when the current state of charge is the un-full charging state, accumulating, on a first duration at the end of the last time of charging of the vehicle-mounted battery, an interval duration between the end of the last time of charging and the end of this time of charging of the vehicle-mounted battery, to obtain a new first duration;

[0018] Step S3, accumulating, on a power supply driving mileage at the end of the last time of charging of the vehicle-mounted battery, a driving course in a time interval between the end of the last time of charging and the end of this time of charging of the vehicle-mounted battery, to obtain a new power supply driving mileage, and returning to step S1;

[0019] Step S4, when the current state of charge is the full charging state, clearing the first duration and the power supply driving mileage, and returning to step S1.

[0020] As a possible implementation of the present application, after receiving the historical behavior data of the vehicle-mounted battery, the method comprises:

[0021] determining that the vehicle-mounted battery is in the state to be maintained when the first duration is greater than a first duration threshold and the power supply driving distance is greater than a first power supply driving distance threshold;

[0022] determining that the vehicle-mounted battery is in the state to be maintained when the power supply driving distance is greater than a second power supply driving distance threshold; wherein the second power supply driving distance threshold is greater than the first power supply driving distance threshold;

[0023] determining that the vehicle-mounted battery is in the state to be maintained when the first duration is greater than a second duration threshold; wherein the second duration threshold is greater than the first duration threshold.

[0024] As a possible implementation of the present application, in the implementation, the generating the maintenance strategy of the vehicle-mounted battery based on the historical charging data and the historical discharging data, so that the vehicle-mounted battery management system maintains the vehicle-mounted battery according to the maintenance strategy, comprises:

[0025] obtaining battery health index standard data at the time of full charging jump of the vehicle-mounted battery; wherein the battery health index standard data comprises battery remaining capacity percentage and battery health degree;

[0026] sending the battery health index standard data to the vehicle-mounted battery management system, so that the vehicle-mounted battery management system corrects the battery remaining capacity percentage calculation value of the vehicle-mounted battery and the battery health degree calculation value of the vehicle-mounted battery based on the battery health degree index standard data; wherein the battery remaining capacity percentage calculation value and the battery health degree calculation value are calculated by the vehicle-mounted battery management system using a preset formula.

[0027] The second aspect of the present application provides a vehicle-mounted battery management system, comprising:

[0028] a data sending module for sending vehicle-mounted battery historical behavior data to a server, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery;

[0029] a strategy receiving module for receiving a maintenance strategy generated by the server when the server determines that the vehicle-mounted battery is in the state to be maintained based on the historical charging data and the historical discharging data;

[0030] an execution module for maintaining the vehicle-mounted battery based on the maintenance strategy.

[0031] The third aspect of the present application provides a vehicle-mounted battery maintenance device, comprising:

[0032] receive historical behavior data of the vehicle-mounted battery sent by a vehicle-mounted battery management system, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery;

[0033] determine whether the vehicle-mounted battery is in a state to be maintained based on the historical charging data and the historical discharging data;

[0034] generate a maintenance strategy for the vehicle-mounted battery based on the historical charging data and the historical discharging data when the vehicle-mounted battery is in the state to be maintained.

[0035] The fourth aspect of the present application provides an electronic device, comprising:

[0036] a processor; and

[0037] a memory having executable code stored thereon, which, when executed by the processor, causes the processor to perform the method described above.

[0038] The fifth aspect of the present application provides a computer-readable storage medium having executable code stored thereon, which, when executed by a processor of an electronic device, causes the processor to perform the method described above.

[0039] The embodiments of the present application obtain historical charging data and historical discharging data of a vehicle-mounted battery, construct a charging and discharging record of the vehicle-mounted battery based on the historical charging data and the historical discharging data, determine whether the vehicle-mounted battery is in a state to be maintained based on the charging and discharging record according to a preset determination rule, and send a reminder to a user for manual triggering of a correction mechanism in the case of a long time without full charging of the vehicle-mounted battery, so as to maximize the accuracy of SOC and improve user experience.

[0040] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the present application. BRIEF DESCRIPTION OF DRAWINGS

[0041] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout the figures, and wherein:

[0042] Figure 1 is a flowchart of a vehicle-mounted battery maintenance method according to an embodiment of the present application;

[0043] Figure 2 is another flowchart of a method for determining whether a vehicle-mounted battery is in a state to be maintained according to an embodiment of the present application;

[0044] Figure 3 is a flow chart of a process for counting a first duration and a power supply driving mileage according to an embodiment of the present application;

[0045] Figure 4 is a flow chart of a process for maintaining a vehicle-mounted battery according to an embodiment of the present application;

[0046] Figure 5 is a structural diagram of a vehicle-mounted battery management system according to an embodiment of the present application;

[0047] Figure 6 is a structural diagram of a vehicle-mounted battery maintenance device according to an embodiment of the present application;

[0048] Figure 7 is a structural diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0049] Embodiments of the present application will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the application are shown. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0050] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the description of the application and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0051] It will be understood that, although the terms "first", "second", "third", etc. can be used herein to describe various information, the information should not be limited by these terms. These terms are only used to distinguish one piece of information from another. For example, a first information can also be termed a second information, and, similarly, a second information can also be termed a first information, without departing from the scope of the present application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0052] With the rapid development of new energy technology, pure electric vehicles and hybrid vehicles have become common means of transportation. The batteries used in pure electric vehicles and hybrid vehicles on the market are mostly iron lithium batteries. Due to the characteristics of iron lithium batteries, when the SOC (State of Charge, also known as the current remaining capacity) is between 30% and 80%, the terminal voltage-SOC curve is approximately a straight line. Only in the high SOC interval and the low SOC interval, the trend of SOC change with voltage is more obvious. The SOC correction point is generally below 30% SOC or when fully charged. Due to range anxiety and charging time limit, most users use the charging and discharging interval of the electric vehicle between [30%, 90%] SOC, which cannot trigger the SOC correction strategy. With the growth of time, the error of ampere-hour integration method will be accumulated, which will gradually increase the error of estimated SOC, affecting the user experience.

[0053] To solve the above problems, the embodiments of the present application provide a vehicle-mounted battery maintenance method, device and management system, which can remind the user when the vehicle-mounted battery has not been corrected for a long time, ensure timely triggering of the correction mechanism, and improve the user experience.

[0054] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.

[0055] Figure 1 is a flowchart of the vehicle-mounted battery maintenance method shown in the embodiments of the present application.

[0056] Referring to Figure 1 The vehicle-mounted battery maintenance method provided by the embodiments of the present application comprises:

[0057] Step S101, receiving the historical behavior data of the vehicle-mounted battery sent by the vehicle-mounted battery management system, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery.

[0058] In the embodiments of the present application, the vehicle-mounted battery refers to a storage battery loaded on a pure electric vehicle or a hybrid vehicle for providing power for the pure electric vehicle or the hybrid vehicle, which can be a lithium iron battery, a lead-acid battery, a lithium ion battery, a nickel-hydrogen battery or the like, and the present application does not limit the vehicle-mounted battery. The vehicle-mounted battery management system (BSM) is an important link connecting the vehicle-mounted power battery and the electric vehicle, which mainly functions to improve the utilization rate of the battery, prevent overcharging and discharging of the battery, prolong the service life of the battery, and monitor the state of the battery. The historical charging data of the vehicle-mounted battery refers to the charging data of the vehicle-mounted battery in the past period of time, including but not limited to charging time, charging voltage during charging, time of ending charging, SOC of the battery at the time of ending charging, and the like. The historical discharging data refers to the discharging time, discharging voltage, mileage of the vehicle during the discharging duration, and the like.

[0059] In the embodiments of the present application, the vehicle-mounted battery management system obtains the historical charging data and the historical discharging data of the vehicle-mounted battery, and sends the historical charging data and the historical discharging data to a server for storage, wherein the server can be a physical server or a cloud server, which is used to record and store the historical charging data and the historical discharging data of the vehicle-mounted battery, and evaluate the health status of the vehicle-mounted battery according to the historical charging data and the historical discharging data of the vehicle-mounted battery to determine whether the vehicle-mounted battery needs maintenance.

[0060] As a possible implementation manner of the present application, after receiving the historical behavior data of the vehicle-mounted battery sent by the vehicle-mounted battery management system, the server can store the historical charging data and the historical discharging data of the vehicle-mounted battery according to the time sequence of the received data, specifically, it can be:

[0061] Based on the receiving time of the historical behavior data, the historical charging data and the historical discharging data are recorded in the order of the receiving time.

[0062] In the embodiments of the present application, the vehicle-mounted battery management system records the sending time of the historical charging data and the historical discharging data when sending the historical charging data and the historical discharging data of the vehicle-mounted battery to the server, and the server records and stores the historical charging data and the historical discharging data of the vehicle-mounted battery based on the sending time when storing the historical charging data and the historical discharging data of the vehicle-mounted battery,

[0063] Optionally, a table can be used for recording.

[0064] In step S102, whether the vehicle-mounted battery is in a state of needing maintenance is determined based on the historical charging data and the historical discharging data.

[0065] In the embodiments of the present application, the vehicle-mounted battery in the state of waiting for maintenance can refer to the state of the vehicle-mounted television being in a long time of not being fully charged, or the state of the SOC of the vehicle-mounted battery calculated by the vehicle-mounted battery management system being inaccurate, and the SOC calculation of the vehicle-mounted battery needs to be corrected.

[0066] As a possible implementation manner of the present application, in the implementation manner, as shown in the figure, Figure 2 determining whether the vehicle-mounted battery is in the state of waiting for maintenance based on the historical charging data and the historical discharging data includes:

[0067] In step S201, the first duration of the vehicle-mounted battery being continuously in the state of not being fully charged is counted based on the historical charging data, and the power supply driving mileage of the vehicle-mounted battery in the first duration is counted based on the historical discharging data. The power supply driving mileage refers to the driving mileage of the vehicle powered by the vehicle-mounted battery.

[0068] In the embodiments of the present application, the vehicle-mounted battery being continuously in the state of not being fully charged refers to the state of the vehicle-mounted battery being in the state of not being fully charged after the last full charging is completed. The duration of the state of not being fully charged is counted to obtain the first duration. The power supply driving history of the vehicle-mounted battery in the first duration is counted based on the historical discharging data of the vehicle-mounted battery. The power supply driving mileage refers to the driving mileage of the vehicle powered by the vehicle-mounted battery.

[0069] As a possible implementation manner of the present application, for the convenience of description, taking a specific embodiment as an example, the vehicle-mounted battery is fully charged on a certain day, and the SOC reaches 100%. After the full charging is completed, the vehicle-mounted battery is not fully charged for 30 consecutive days (i.e., the SOC of the vehicle-mounted battery does not reach 100% at the end of each charging). The first duration is counted to be 30 days. At the same time, based on the historical discharging data of the vehicle-mounted battery in the 30 days, the total driving mileage of the vehicle powered by the vehicle-mounted battery in the 30 days is determined, such as 800 kilometers, and the power supply driving mileage is obtained to be 800 kilometers. Of course, the above specific example is only a possible implementation manner of the present application, and each specific value needs to be determined according to the actual situation. The present application does not limit this.

[0070] As a possible implementation manner of the present application, in the implementation manner, when the first duration of the vehicle-mounted battery being continuously in the state of not being fully charged is counted based on the historical charging data, and the power supply driving mileage of the vehicle-mounted battery in the first duration is counted based on the historical discharging data, the specific flow is as shown in the figure, Figure 3 includes:

[0071] Step S1, receiving the current power state of the vehicle-mounted battery sent by the vehicle-mounted battery management system when the vehicle-mounted battery finishes charging this time.

[0072] In the embodiment of the present application, the vehicle-mounted battery management system sends the current power state of the vehicle-mounted battery to the server when the vehicle-mounted battery finishes charging each time. Optionally, the content sent by the vehicle-mounted battery management system when sending the current power state of the vehicle-mounted battery can include the SOC, SOH (State of Health, battery health, which can be understood as the percentage of the current capacity of the battery to the factory capacity), and the charging duration this time, etc.

[0073] Step S2, when the current power state is the uncharged state, accumulating the interval duration between the last charging end and the current charging end of the vehicle-mounted battery on the first duration when the vehicle-mounted battery finishes charging last time to obtain a new first duration.

[0074] The vehicle-mounted battery maintenance method provided by the embodiment of the present application can generate a plurality of variables for storing the first duration and the power driving mileage when first running. Optionally, the variables for storing the first duration and the power driving mileage are assigned a value of 0 when first running. When the current battery state of the vehicle-mounted battery sent by the vehicle-mounted battery management system this time is the uncharged state (i.e. the SOC of the vehicle-mounted battery is less than 100% when the vehicle-mounted battery finishes charging this time), the interval duration between the last charging end and the current charging end of the vehicle-mounted battery is accumulated on the first duration when the vehicle-mounted battery finishes charging last time to obtain a new first duration. Specifically, for example, a variable T is set for recording the first duration. When used once, the variable T = 0. The current power state of the vehicle-mounted battery sent by the vehicle-mounted battery management system this time is 85%. The time interval between the current charging end and the last charging end is 3 days. Therefore, T = 0 + 3 = 3. The new first duration is 3 days. Optionally, when the vehicle-mounted battery finishes charging next time, the current power state of the vehicle-mounted battery sent by the vehicle-mounted battery management system is 80%. The interval time between the first charging end and the second charging end is 4 days. Therefore, T = 3 + 4 = 7 days. The new first duration is 7 days. Of course, the above embodiment is only given for convenience of description. For each specific data, it needs to be determined according to the actual situation.

[0075] Step S3, accumulating the driving course in the time interval between the last charging end and the current charging end of the vehicle-mounted battery on the power driving mileage when the vehicle-mounted battery finishes charging last time to obtain a new power driving mileage, and returning to step S1.

[0076] In the embodiment of the present application, similar to the previous embodiment, for example, a variable M is set to record the power supply mileage, in one use, the variable M = 0, the current state of charge of the vehicle-mounted battery sent by the vehicle-mounted battery management system is 85%, the time interval of charging for the distance is 3 days, and the driving mileage of the vehicle powered by the vehicle-mounted battery in the three days is 328 kilometers, so M = 0 + 328 = 328 kilometers, and the new power supply mileage is 328 kilometers.

[0077] Alternatively, when the vehicle-mounted battery is charged next time, the current state of charge of the vehicle-mounted battery sent by the vehicle-mounted battery management system is 80%, the interval time between the first charging end and the second charging end is 4 days, the driving mileage of the vehicle powered by the vehicle-mounted battery in the 4 days is 452 kilometers, T = 328 + 452 = 780 kilometers, and the new power supply mileage is 780 kilometers. In the embodiment of the present application, after the first duration and the power supply mileage are counted, when the vehicle-mounted battery is charged again, return to step S1 to realize the accumulation of the first duration and the power supply mileage of the vehicle-mounted battery. Of course, the above embodiment is only given for convenience of description, and for each specific data, the actual situation needs to be determined.

[0078] Step S4, when the current state of charge is the full charging state, the first duration and the power supply mileage are cleared, and the step S1 is returned.

[0079] In the embodiment of the present application, there is a possible implementation, when the vehicle-mounted battery is charged this time, the current state of charge of the vehicle-mounted battery is the full charging state (and the SOC of the vehicle battery is 100%), at this time, it is determined that the vehicle-mounted battery completes one full charging, and the first duration and the power supply mileage need to be cleared. As a possible implementation of the present application, according to the previous embodiment, the first duration T is 7 days, and the power supply mileage M is 780 kilometers, when the vehicle-mounted battery completes one full charging, the first duration T is assigned to 0, the power supply mileage M is assigned to 0, and when the vehicle-mounted battery is charged again, the step S1 is returned.

[0080] Step S202, based on the first duration and the power supply mileage, it is determined whether the vehicle-mounted battery is in a state to be maintained.

[0081] In the embodiment of the present application, after the first duration and the power supply mileage of the vehicle-mounted battery are determined, based on the first duration and the power supply mileage, a preset determination rule is used to determine whether the vehicle-mounted battery is in a state to be maintained, specifically, it can be:

[0082] When the first duration is greater than a first duration threshold and the powered mileage is greater than a first powered mileage threshold, determining that the vehicle battery is in a maintenance-waiting state;

[0083] When the powered mileage is greater than a second powered mileage threshold, it is determined that the vehicle battery is in a maintenance-waiting state; wherein the second powered mileage threshold is greater than the first powered mileage threshold;

[0084] When the first duration is greater than a second duration threshold, it is determined that the vehicle battery is in a maintenance waiting state; wherein the second duration threshold is greater than the first duration threshold.

[0085] In the embodiments of the present application, when determining whether the vehicle-mounted battery is in a state to be maintained, the first duration and the power supply driving distance need to be combined. Optionally, determining whether the vehicle-mounted battery is in a state to be maintained can be determining whether the vehicle-mounted battery is in an unfull charging state under a long time or a long driving distance. Whether the vehicle-mounted battery is in a state to be maintained can be determined according to a preset rule. As a possible implementation manner of the present application, the specific determination rule can be one or more of the following, for example, when the first duration is greater than a first duration threshold and the power supply driving distance is greater than a first power supply driving distance threshold, it is determined that the vehicle-mounted battery is in a state to be maintained. Specifically, the first duration threshold and the first power supply driving distance threshold can be determined according to the actual endurance mileage of the vehicle-mounted battery, for example, the first duration threshold is set to 30 days, and the first power supply driving distance threshold is set to 1000 kilometers. When the first duration of the vehicle-mounted battery is greater than 30 days, that is, the vehicle-mounted battery has not been fully charged for more than 30 days, and the power supply driving distance of the vehicle-mounted battery in the 30 days is greater than 1000 kilometers, it is determined that the vehicle-mounted battery has not been fully charged for a long time and needs to be maintained. For another example, when the power supply driving distance is greater than a second power supply driving distance threshold, it is determined that the vehicle-mounted battery is in a state to be maintained; wherein the second power supply driving distance threshold is greater than the first power supply driving distance threshold. Specifically, the second power supply driving distance threshold can be set according to actual needs, wherein the second power supply driving distance needs to be greater than the first power supply driving distance, for example, it can be set to 1500 kilometers. When the first duration is not more than 30 days, but the driving distance of the vehicle powered by the vehicle-mounted battery exceeds 1500 kilometers in the first duration, it is determined that the vehicle-mounted battery has not been fully charged for a long time and needs to be maintained. For another example, when the first duration is greater than a second duration threshold, it is determined that the vehicle-mounted battery is in a state to be maintained; wherein the second duration threshold is greater than the first duration threshold. Specifically, the second duration threshold can be set according to actual conditions, wherein the second duration threshold is greater than the first duration threshold, for example, it can be set to 45 days. For example, when the first duration is greater than 45 days, regardless of the power supply driving distance of the vehicle-mounted battery in the duration, it is determined that the vehicle-mounted battery has not been fully charged for a long time. Of course, the above embodiments are a possible implementation manner of the present application, and the specific values can be determined according to actual conditions, and the present application does not limit this.

[0086] Step S103, when the vehicle-mounted battery is in a state to be maintained, generating a maintenance strategy of the vehicle-mounted battery based on the historical charging data and the historical discharging data, so that the vehicle-mounted battery management system maintains the vehicle-mounted battery according to the maintenance strategy.

[0087] In the embodiments of the present application, as described in the foregoing embodiments, when it is determined that the vehicle-mounted battery is in a state to be maintained, such as when it is determined that the vehicle-mounted battery has been in an un-full charging state for a long time, a maintenance strategy for the vehicle-mounted battery is generated based on the historical charging data and the historical discharging data, so that the vehicle-mounted battery management system maintains the vehicle-mounted battery according to the maintenance strategy. Specifically, as shown in Figure 4 The specific process includes the following steps:

[0088] In step S401, the battery health index standard data of the vehicle-mounted battery is obtained; the battery health index standard data includes the battery remaining capacity percentage and the battery health degree of the vehicle-mounted battery at full charging jump.

[0089] In the embodiments of the present application, when it is determined that the vehicle-mounted battery has been in an un-full charging state for a long time, a reminder message is generated, and the reminder is sent to the user through the vehicle machine or the user terminal, so that the user can ensure that the vehicle-mounted battery is fully charged once. The battery health index standard data of the vehicle-mounted battery is obtained when the vehicle-mounted battery is fully charged and jumps, including the battery remaining capacity percentage (SOC) and the battery health degree (SOH). As a possible implementation manner of the present application, in this implementation manner, the vehicle-mounted battery management system obtains the SOC and SOH of the vehicle-mounted battery when the vehicle-mounted battery is fully charged and jumps, and takes them as the standard values of the SOC and SOH of the vehicle-mounted battery.

[0090] In step S402, the battery remaining capacity percentage calculation value of the vehicle-mounted battery and the battery health degree calculation value of the vehicle-mounted battery are corrected based on the battery health degree index standard data; the battery remaining capacity percentage calculation value and the battery health degree calculation value are calculated by the vehicle-mounted battery management system using a preset formula.

[0091] In the embodiments of the present application, after obtaining the battery health index standard data of the vehicle-mounted battery, the battery remaining capacity percentage calculation value of the vehicle-mounted battery and the battery health degree calculation value of the vehicle-mounted battery are corrected based on the standard data. Optionally, when the battery remaining capacity percentage calculation value and the battery health degree calculation value of the vehicle-mounted battery are corrected, the standard values of the SOC and SOH obtained in the foregoing embodiments are replaced by the battery remaining capacity percentage calculation value and the battery health degree calculation value of the vehicle-mounted battery. As a possible implementation manner of the present application, when the battery remaining capacity percentage calculation value of the vehicle-mounted battery and the battery health degree calculation value of the vehicle-mounted battery are corrected, the correction is mainly performed on the SOC. However, when the vehicle shows SOC jump in multiple full charging behaviors with a short interval time, the SOH needs to be corrected, wherein the SOC jump refers to the case that the SOC of the vehicle-mounted battery jumps directly from 90% or 95% to 100% when the vehicle-mounted battery is fully charged.

[0092] The embodiment of the application obtains historical charging data and historical discharging data of the vehicle-mounted battery, constructs a charging and discharging record of the vehicle-mounted battery based on the historical charging data and the historical discharging data, judges whether the vehicle-mounted battery is in a state to be maintained according to a preset judgment rule based on the charging and discharging record, and sends a reminder to the user for manual triggering of a correction mechanism for the case that the vehicle-mounted battery has not been fully charged for a long time, so as to maximize the accuracy of SOC and improve user experience.

[0093] Corresponding to the foregoing application function implementation method embodiment, the application further provides a vehicle-mounted battery management system 50, as shown in the accompanying drawings, which comprises: Figure 5

[0094] A data sending module 510 is configured to send historical behavior data of the vehicle-mounted battery to a server, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery.

[0095] A strategy receiving module 520 is configured to receive a maintenance strategy generated by the server when the server judges that the vehicle-mounted battery is in a state to be maintained based on the historical charging data and the historical discharging data.

[0096] An execution module 530 is configured to perform maintenance on the vehicle-mounted battery based on the maintenance strategy.

[0097] In the embodiment of the application, the vehicle-mounted battery management system is provided on an electric vehicle and is used for managing the vehicle-mounted battery, wherein the vehicle-mounted battery management system can communicate with the server, perform maintenance on the vehicle-mounted battery according to the method in the foregoing embodiment, and the specific working principle has been described in the foregoing embodiment, which will not be described here.

[0098] Corresponding to the foregoing application function implementation method embodiment, the application further provides a vehicle-mounted battery maintenance device, an electronic device and corresponding embodiments.

[0099] Figure 6 FIG. 1 is a structural schematic diagram of a vehicle-mounted battery maintenance device according to an embodiment of the application.

[0100] Referring to FIG. 1, the vehicle-mounted battery maintenance device 60 provided by the embodiment of the application comprises a data receiving module 610, a judgment module 620 and a strategy generating module 630, wherein: Figure 6 The data receiving module 610 is configured to receive historical behavior data of the vehicle-mounted battery sent by the vehicle-mounted battery management system, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery.

[0101]

[0102] ​​determining whether the vehicle-mounted battery is in a state to be maintained based on the historical charging data and the historical discharging data;

[0103] generating a maintenance strategy for the vehicle-mounted battery based on the historical charging data and the historical discharging data when the vehicle-mounted battery is in the state to be maintained.

[0104] As a possible implementation form of the present application, in this implementation form, the data receiving module 610, after receiving the historical behavior data of the vehicle-mounted battery sent by the vehicle-mounted battery management system, can be configured to:

[0105] record the historical charging data and the historical discharging data in the order of the receiving time based on the receiving time of the historical behavior data.

[0106] As a possible implementation form of the present application, in this implementation form, the determining module 620, when determining whether the vehicle-mounted battery is in the state to be maintained based on the historical charging data and the historical discharging data, can be configured to:

[0107] statistically determine a first duration that the vehicle-mounted battery continuously stays in the un-full charging state based on the historical charging data, and statistically determine a power supply driving mileage of the vehicle-mounted battery in the first duration based on the historical discharging data, the power supply driving mileage referring to a driving mileage of a vehicle powered by the vehicle-mounted battery;

[0108] determine whether the vehicle-mounted battery is in the state to be maintained based on the first duration and the power supply driving mileage.

[0109] As a possible implementation form of the present application, in this implementation form, the determining module 620, when statistically determining a first duration that the vehicle-mounted battery continuously stays in the un-full charging state based on the historical charging data, and statistically determining a power supply driving mileage of the vehicle-mounted battery in the first duration based on the historical discharging data, can be configured to:

[0110] S1, receiving a current power state of the vehicle-mounted battery sent by the vehicle-mounted battery management system when the vehicle-mounted battery is charged this time;

[0111] S2, when the current power state is the un-full charging state, accumulating an interval duration between a previous charging end time and a current charging end time of the vehicle-mounted battery on a first duration when the vehicle-mounted battery is charged last time to obtain a new first duration;

[0112] Step S3, accumulating the driving distance of the vehicle-mounted battery in the time interval between the end of the last charging and the end of the current charging based on the driving distance of the vehicle-mounted battery at the end of the last charging, obtaining a new driving distance, and returning to step S1;

[0113] Step S4, when the current state of charge is full, the first duration and the driving distance are cleared, and the process returns to step S1.

[0114] As a possible embodiment of the present application, in this embodiment, when determining whether the vehicle-mounted battery is in a maintenance state based on the first duration and the driving distance, the determination module 620 can be used for:

[0115] When the first duration is greater than a first duration threshold and the driving distance is greater than a first driving distance threshold, it is determined that the vehicle-mounted battery is in a maintenance state;

[0116] When the driving distance is greater than a second driving distance threshold, it is determined that the vehicle-mounted battery is in a maintenance state; wherein the second driving distance threshold is greater than the first driving distance threshold;

[0117] When the first duration is greater than a second duration threshold, it is determined that the vehicle-mounted battery is in a maintenance state; wherein the second duration threshold is greater than the first duration threshold.

[0118] As a possible embodiment of the present application, in this embodiment, when generating the maintenance strategy of the vehicle-mounted battery based on the historical charging data and the historical discharging data, the strategy generation module 630 can be used for:

[0119] Obtaining the battery health index standard data of the vehicle-mounted battery; wherein the battery health index standard data includes the battery remaining capacity percentage and the battery health degree of the vehicle-mounted battery at full charging jump;

[0120] Correcting the battery remaining capacity percentage calculation value of the vehicle-mounted battery and the battery health degree calculation value of the vehicle-mounted battery based on the battery health index standard data; wherein the battery remaining capacity percentage calculation value and the battery health degree calculation value are calculated by the vehicle-mounted battery management system using a preset formula.

[0121] The embodiment of the application obtains historical charging data and historical discharging data of the vehicle-mounted battery, constructs a charging and discharging record of the vehicle-mounted battery based on the historical charging data and the historical discharging data, judges whether the vehicle-mounted battery is in a state to be maintained according to a preset judgment rule based on the charging and discharging record, and sends a reminder to the user for a long time without full charging of the vehicle-mounted battery, so as to manually trigger a correction mechanism by the user, maximumly guarantee the accuracy of the SOC, and improve the user experience.

[0122] As to the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be described in detail here.

[0123] Figure 7 FIG. 1 is a structural schematic diagram of an electronic device according to an embodiment of the application.

[0124] Referring to FIG. 1, Figure 7 The electronic device 1000 includes a memory 1010 and a processor 1020.

[0125] The processor 1020 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0126] The memory 1010 can include various types of storage units, such as a system memory, a read-only memory (ROM), and a permanent storage device. Among them, the ROM can store static data or instructions required by the processor 1020 or other modules of the computer. The permanent storage device can be a read-write storage device. The permanent storage device can be a non-volatile storage device that does not lose stored instructions and data even after the computer is powered off. In some embodiments, the permanent storage device uses a mass storage device (such as a magnetic or optical disk, a flash memory) as a permanent storage device. In some other embodiments, the permanent storage device can be a removable storage device (such as a floppy disk, an optical drive). The system memory can be a read-write storage device or a volatile read-write storage device, such as a dynamic random access memory. The system memory can store some or all of the instructions and data required by the processor during runtime. In addition, the memory 1010 can include a combination of any computer readable storage media, including various types of semiconductor storage chips (such as DRAM, SRAM, SDRAM, flash memory, programmable read-only memory), magnetic disks and / or optical disks. In some embodiments, the memory 1010 can include a read and / or write removable storage device, such as a compact disc (CD), a read-only digital versatile disc (such as DVD-ROM, double-layer DVD-ROM), a read-only Blu-ray disc, an ultra-density optical disc, a flash memory card (such as an SD card, a min SD card, a Micro-SD card, etc.), a magnetic floppy disk, etc. The computer readable storage medium does not include a carrier wave and an instantaneous electronic signal transmitted by wireless or wired transmission.

[0127] The memory 1010 stores executable code, which, when processed by the processor 1020, can cause the processor 1020 to perform part or all of the above-mentioned methods.

[0128] In addition, the method according to the present application can also be implemented as a computer program or computer program product, which includes computer program code instructions for executing part or all of the steps of the above-mentioned methods of the present application.

[0129] Alternatively, the present application can also be implemented as a computer readable storage medium (or non-transitory machine readable storage medium or machine readable storage medium) having executable code (or computer program or computer instruction code) stored thereon, which, when executed by a processor of an electronic device (or server, etc.), causes the processor to execute part or all of the steps of the above-mentioned methods according to the present application.

[0130] Having described various embodiments of the application, it is to be understood that the above description is meant to be illustrative only, and that many modifications and variations of the embodiments described herein are possible. It is therefore to be understood that within the scope of the appended claims, and their equivalents, many alternatives to the embodiments described herein are possible. The selection of terms to be used in the description is not intended to limit the scope of the embodiments described herein, but rather to best explain the principles of the embodiments, practical application, or improvement over the technology in the art, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A method of maintaining an in-vehicle battery, characterized by, The method comprises: receiving vehicle-mounted battery historical behavior data sent by a vehicle-mounted battery management system, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery; based on the receiving time of the historical behavior data, recording the historical charging data and the historical discharging data in the order of the receiving time; based on the historical charging data and the historical discharging data, determining whether the vehicle-mounted battery is in a state to be maintained, comprising: based on the historical charging data, counting a first continuous duration that the vehicle-mounted battery is continuously in an unfull charging state, and based on the historical discharging data, counting a power supply driving mileage of the vehicle-mounted battery in the first continuous duration, the power supply driving mileage referring to a driving mileage of a vehicle powered by the vehicle-mounted battery; based on the first continuous duration and the power supply driving mileage, determining whether the vehicle-mounted battery is in a state to be maintained; when the vehicle-mounted battery is in a state to be maintained, generating a maintenance strategy of the vehicle-mounted battery based on the historical charging data and the historical discharging data, so that the vehicle-mounted battery management system maintains the vehicle-mounted battery according to the maintenance strategy.

2. The in-vehicle battery maintenance method according to claim 1, characterized by, The method comprises: Step S1, receiving a current power state of the vehicle-mounted battery sent by the vehicle-mounted battery management system when the vehicle-mounted battery is charged this time; Step S2, when the current power state is an unfull charging state, accumulating an interval duration between the last charging end and the current charging end of the vehicle-mounted battery on a first continuous duration when the vehicle-mounted battery is charged last time, to obtain a new first continuous duration; Step S3, accumulating a driving course in the time interval between the last charging end and the current charging end of the vehicle-mounted battery on a power supply driving mileage when the vehicle-mounted battery is charged last time, to obtain a new power supply driving mileage, and returning to Step S1; Step S4, when the current power state is a full charging state, clearing the first continuous duration and the power supply driving mileage, and returning to Step S1.

3. The in-vehicle battery maintenance method according to claim 1, characterized by, The method comprises: when the first continuous duration is greater than a first continuous duration threshold and the power supply driving mileage is greater than a first power supply driving mileage threshold, determining that the vehicle-mounted battery is in a state to be maintained; when the power supply driving mileage is greater than a second power supply driving mileage threshold, determining that the vehicle-mounted battery is in a state to be maintained; wherein the second power supply driving mileage threshold is greater than the first power supply driving mileage threshold; when the first continuous duration is greater than a second continuous duration threshold, determining that the vehicle-mounted battery is in a state to be maintained; wherein the second continuous duration threshold is greater than the first continuous duration threshold.

4. The in-vehicle battery maintenance method according to claim 1, characterized by, The generating the maintenance strategy of the vehicle-mounted battery based on the historical charging data and the historical discharging data, so that the vehicle-mounted battery management system maintains the vehicle-mounted battery according to the maintenance strategy, comprises: Obtaining battery health index standard data of the vehicle-mounted battery; wherein the battery health index standard data comprises battery remaining capacity percentage and battery health degree of the vehicle-mounted battery at full charging jump; Correcting the battery remaining capacity percentage calculation value of the vehicle-mounted battery and the battery health degree calculation value of the vehicle-mounted battery based on the battery health index standard data; wherein the battery remaining capacity percentage calculation value and the battery health degree calculation value are calculated by the vehicle-mounted battery management system using a preset formula.

5. An on-board battery management system characterized by, Comprise: The data sending module is used for sending vehicle-mounted battery historical behavior data to the server, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery, so that the server receives the vehicle-mounted battery historical behavior data, and records the historical charging data and the historical discharging data in the order of the receiving time of the historical behavior data based on the receiving time, and judges whether the vehicle-mounted battery is in a maintenance state based on the historical charging data and the historical discharging data, which comprises: based on the historical charging data, the first continuous duration of the vehicle-mounted battery in the unfull charging state is counted, and based on the historical discharging data, the power supply driving mileage of the vehicle-mounted battery in the first continuous duration is counted, the power supply driving mileage refers to the driving mileage of the vehicle powered by the vehicle-mounted battery, and whether the vehicle-mounted battery is in the maintenance state is judged based on the first continuous duration and the power supply driving mileage, when the vehicle-mounted battery is in the maintenance state, the maintenance strategy of the vehicle-mounted battery is generated based on the historical charging data and the historical discharging data; The strategy receiving module is used for receiving the maintenance strategy generated by the server when the vehicle-mounted battery is in the maintenance state based on the historical charging data and the historical discharging data; The execution module is used for maintaining the vehicle-mounted battery based on the maintenance strategy.

6. An on-vehicle battery maintenance device characterized by comprising: Comprise: The data receiving module is used for receiving vehicle-mounted battery historical behavior data sent by the vehicle-mounted battery management system, wherein the historical behavior data comprises historical charging data and historical discharging data of the vehicle-mounted battery, and records the historical charging data and the historical discharging data in the order of the receiving time of the historical behavior data based on the receiving time; The determination module is configured to determine whether the vehicle-mounted battery is in a state to be maintained based on the historical charging data and the historical discharging data. The determination includes: based on the historical charging data, counting a first continuous duration that the vehicle-mounted battery is continuously in an un-full charging state, and based on the historical discharging data, counting a power supply travel mileage of the vehicle-mounted battery in the first continuous duration, the power supply travel mileage being a travel mileage of a vehicle powered by the vehicle-mounted battery; and based on the first continuous duration and the power supply travel mileage, determining whether the vehicle-mounted battery is in a state to be maintained. The strategy generation module is configured to generate a maintenance strategy of the vehicle-mounted battery based on the historical charging data and the historical discharging data when the vehicle-mounted battery is in the state to be maintained, and send the maintenance strategy to the vehicle-mounted battery management system, so that the vehicle-mounted battery management system maintains the vehicle-mounted battery according to the maintenance strategy.

7. An electronic device, comprising: The method comprises: a processor; and a memory having stored thereon executable code that, when executed by the processor, causes the processor to perform the method of any one of claims 1-4. The memory having stored thereon executable code that, when executed by the processor of the electronic device, causes the processor to perform the method of any one of claims 1-4.

8. A computer-readable storage medium, characterized in that, ​

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