A method and system for automatically evaluating battery health status

Abstract

The present application relates to a method and system for automatically evaluating the health status of a battery, and relates to the field of battery detection technology. It solves the problem that battery health problems do not occur frequently, and real-time monitoring of the health status of the battery easily causes the monitoring device to be in an on state all the time, thereby causing energy waste and affecting the service life of the monitoring equipment. The method includes: regularly obtaining battery health-related category data; analyzing and obtaining the health of the battery based on the obtained battery health-related category data; and sending the battery health obtained each time as information to be sent to a data processing platform. The present application has the following effects: while ensuring the monitoring of the battery health status, it reduces the energy waste caused by continuous monitoring and the short service life of the corresponding monitoring equipment.

Description

Technical Field

[0001] The present application relates to the field of battery detection technology, and in particular to a method and system for automatically evaluating the health status of a battery. Background Art

[0002] Environmental pollution, energy shortages and increasing demand for cars have forced the automotive industry to move towards electrification. As the power source of electric vehicles, the battery system has a significant impact on the power, economy and safety of the vehicle. Battery health status assessment, as one of the key tasks of battery status assessment, has received increasing attention from researchers at home and abroad.

[0003] At present, the common methods for evaluating the health status of automotive power batteries are achieved through the estimation and identification of the internal parameters of the battery. The battery health status is mainly evaluated by monitoring and estimating the battery internal resistance monitoring device, and the evaluated battery health status is uploaded to the data management platform in real time. The subsequent car owner can log in to the data management platform when necessary to check whether the battery is in a healthy state.

[0004] With respect to the above-mentioned related technologies, the inventors have found the following defects: battery health problems do not occur frequently, and real-time monitoring of battery health status can easily cause the monitoring device to be always in the on state, thereby causing energy waste and affecting the service life of the monitoring equipment. Summary of the invention

[0005] In order to ensure that the battery health status is monitored while reducing the energy waste caused by continuous monitoring and the short service life of the corresponding monitoring equipment, the present application provides a battery health status automatic assessment method and system.

[0006] In a first aspect, the present application provides a method for automatically evaluating the health status of a battery, which adopts the following technical solution:

[0007] A method for automatically evaluating a battery health status, comprising:

[0008] Regularly obtain health-related data of the battery;

[0009] Analyze and obtain the health of the battery based on the acquired battery health-related category data;

[0010] The battery health status obtained each time is sent to the data processing platform as information to be sent.

[0011] Optionally, regularly obtain battery health-related data including:

[0012] Get the ambient temperature of the battery;

[0013] If the ambient temperature of the battery is within a first preset suitable temperature range, obtaining health-related category data of the battery at a first regular time period;

[0014] If the ambient temperature of the battery exceeds the first preset suitable temperature range and is within the second preset suitable temperature range, obtaining health-related category data of the battery according to the second regular period, wherein the first regular period exceeds the second regular period;

[0015] If the ambient temperature of the battery exceeds the second preset suitable temperature range, the health-related category data of the battery is obtained in real time.

[0016] Optionally, obtaining the second regular period includes:

[0017] Obtain the battery health status each time the ambient temperature of the battery exceeds the first preset suitable temperature range and is within the second preset suitable temperature range, and the battery health status each time the ambient temperature of the battery is within the first preset suitable temperature range;

[0018] Analyze and obtain a first average battery health according to the battery health each time the ambient temperature of the battery exceeds the first preset suitable temperature range and is within the second preset suitable temperature range in history;

[0019] Analyze and obtain a second average battery health according to the battery health at each time when the ambient temperature of the battery is within the first preset suitable temperature range;

[0020] The second regular period is calculated and analyzed based on the ratio of the first average battery health state to the second average battery health state and the first regular period.

[0021] Optionally, sending the battery health status obtained each time as information to be sent to the data processing platform includes:

[0022] Obtaining regular time periods for collecting health-related data of the battery and the owner's rest time planning information;

[0023] If the health of the battery exceeds the preset health, the rest time of the owner is determined according to the rest time planning information of the owner, and when the owner is in the rest time, the health of the battery is sent to the data processing platform as the information to be sent;

[0024] Otherwise, the battery health status is sent to the data processing platform as information to be sent.

[0025] Optionally, on the contrary, the battery health is sent as the information to be sent to the data processing platform, including:

[0026] If the periodic period for collecting the battery health-related category data is the first periodic period and the battery health is lower than the preset health, the battery health is sent to the data processing platform as the information to be sent;

[0027] If the periodic period for collecting battery health-related category data is the second periodic period and the battery health is lower than the preset health, the battery health is sent to the data processing platform as information to be sent, and at the same time, according to whether the feedback time made by the owner through the data processing platform is within the preset feedback time, it is analyzed and determined whether to change the information sending method, and the owner is notified again;

[0028] If no feedback is received within the preset period after the car owner is notified again, the battery health status will be sent as information to be sent to the terminal held by the person in charge of the data processing platform, and the person in charge will be reminded to indirectly remind the car owner.

[0029] Optionally, at the same time, according to whether the feedback time made by the car owner through the data processing platform is within the preset feedback time, analyzing and determining whether to change the information sending method, and notifying the car owner again includes:

[0030] Analyze whether the owner's feedback information is received within the preset feedback time;

[0031] If yes, keep the current settings unchanged;

[0032] On the contrary, the current state of the owner is analyzed and obtained according to the rest time planning information of the owner, and the state of the owner includes working state and rest state;

[0033] If the car owner is at work, the contact information of the colleague who is at work during the current period is queried and obtained according to the preset work schedule information and contact information of the colleague of the car owner, and the notification information is sent to the terminal held by the colleague according to the contact information of the colleague who is at work during the current period;

[0034] If the car owner is resting, the contact information of the family members who are resting in the current period will be queried based on the preset work schedule information and contact information of the car owner's family members, and notification information will be sent to the terminal held by the family members based on the contact information of the family members who are resting in the current period.

[0035] Optionally, obtaining the preset feedback time includes:

[0036] Obtain the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner;

[0037] Based on the average feedback time of the car owner to new information on the data processing platform in different states and the current state of the car owner, the average feedback time of the car owner in the current state is analyzed and determined, and used as the preset feedback time.

[0038] Optionally, obtaining the preset feedback time includes:

[0039] Obtain the average feedback time of car owners to new information on the data processing platform at different time periods;

[0040] Based on the average feedback time of car owners to new information on the data processing platform in different time periods and the current time period, the average feedback time of car owners in the current time period is analyzed and determined, and used as the preset feedback time.

[0041] Optionally, obtaining the preset feedback time includes:

[0042] Obtain the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner, and at the same time obtain the average feedback time of the car owner to the new information of the data processing platform in different time periods;

[0043] According to the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner, the average feedback time of the car owner in the current state is analyzed and determined;

[0044] According to the average feedback time of car owners to new information on the data processing platform in different time periods and the current time period, the average feedback time of car owners in the current time period is analyzed and determined;

[0045] The maximum average feedback time between the average feedback time of the car owner in the current period and the average feedback time of the car owner in the current state is selected as the preset feedback time.

[0046] In a second aspect, the present application provides a method for automatically evaluating the health status of a battery, which adopts the following technical solution:

[0047] A battery health status automatic assessment system, comprising:

[0048] A periodic acquisition module is used to: periodically acquire health-related category data of the battery;

[0049] The analysis and acquisition module is used to: analyze and acquire the health of the battery according to the acquired battery health related category data;

[0050] The sending module is used to send the battery health status obtained each time as information to be sent to the data processing platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0052] Figure 1 It is a flowchart of a method for automatically evaluating the health status of a battery according to an embodiment of the present application.

[0053] Figure 2 This is a flowchart of another embodiment of the present application for periodically obtaining battery health-related category data.

[0054] Figure 3 It is a flowchart of obtaining the second regular time period according to another embodiment of the present application.

[0055] Figure 4 This is a flowchart of another embodiment of the present application for sending the battery health status obtained each time as information to be sent to a data processing platform.

[0056] Figure 5 This is a flowchart diagram of another embodiment of the present application, which analyzes and determines whether to change the information sending method based on whether the feedback time made by the car owner through the data processing platform is within the preset feedback time, and notifies the car owner again.

[0057] Figure 6 This is a schematic diagram of the process of obtaining the preset feedback time in another embodiment of the present application. Figure 1 .

[0058] Figure 7 This is a schematic diagram of the process of obtaining the preset feedback time in another embodiment of the present application. Figure 2 .

[0059] Figure 8 This is a schematic diagram of the process of obtaining the preset feedback time in another embodiment of the present application. Figure 3 .

[0060] Fig. 9 This is a system block diagram of a battery health status automatic assessment system according to an embodiment of the present application.

[0061] In the figure, 1. Periodic acquisition module; 2. Analysis and acquisition module; 3. Sending module. DETAILED DESCRIPTION

[0062] The present application is further described in detail below in conjunction with the accompanying drawings.

[0063] Reference Figure 1, is a method for automatically evaluating the health status of a battery disclosed in this application, comprising:

[0064] Step S100: regularly obtaining health-related data of the battery.

[0065] Step S200: Analyze and obtain the health of the battery based on the acquired battery health related category data.

[0066] The battery health-related category data may be the internal resistance of the battery, and then the SOH, that is, the health of the battery, is calculated based on the relationship between the SOH and the internal resistance of the battery.

[0067] in, Where R EOL The internal resistance of the battery at the end of its life, R NEW is the internal resistance of the battery when it leaves the factory, and R is the internal resistance of the battery in its current state.

[0068] Step S300, sending the battery health status obtained each time as information to be sent to the data processing platform.

[0069] Reference Figure 2 , further considering that when obtaining battery health-related data, it is necessary to consider the impact of the external ambient temperature on the battery health-related data, and be able to make adjustments based on the external ambient temperature. Regularly obtaining battery health-related data includes:

[0070] Step S110, obtaining the ambient temperature of the battery.

[0071] The temperature of the environment in which the battery is located can be obtained by detecting through a temperature detection device.

[0072] Step S1A0: if the ambient temperature of the battery is within a first preset suitable temperature range, then obtaining health-related category data of the battery at a first regular time period.

[0073] The first preset suitable temperature interval range is [15, 30] degrees Celsius, and the first regular period can be 30 minutes or other periods.

[0074] Step S1B0, if the ambient temperature of the battery exceeds the first preset suitable temperature range and is within the second preset suitable temperature range, then obtaining health-related category data of the battery according to the second regular period, wherein the first regular period exceeds the second regular period.

[0075] The second preset suitable temperature range is [30, 40] degrees Celsius, and the first regular period is 20 minutes, or may be other periods shorter than the first regular period.

[0076] Step S1C0, if the ambient temperature of the battery exceeds the second preset suitable temperature range, the health-related category data of the battery is obtained in real time.

[0077] Reference Figure 3 , further considering that when determining the second regular period, it can be better determined according to the health ratio of different temperature intervals, the acquisition of the second regular period includes:

[0078] Step S1B1, obtaining the battery health each time the battery's ambient temperature exceeds the first preset suitable temperature range and is within the second preset suitable temperature range, and the battery health each time the battery's ambient temperature is within the first preset suitable temperature range.

[0079] Step S1B2, analyzing and obtaining a first average battery health according to the battery health at each time when the ambient temperature of the battery exceeds the first preset suitable temperature range and is within the second preset suitable temperature range in history.

[0080] Among them, the battery health status of each time the battery's ambient temperature exceeds the first preset suitable temperature range and is in the second preset suitable temperature range can be queried and obtained from a database storing the battery health status of each time the battery's ambient temperature exceeds the first preset suitable temperature range and is in the second preset suitable temperature range; and the first average battery health status can be analyzed and determined based on the total battery health status and quantity.

[0081] Step S1B3, analyzing and obtaining a second average battery health according to the battery health at each time when the ambient temperature of the battery is within the first preset suitable temperature range in history.

[0082] Among them, the battery health of each time the battery's ambient temperature is within the first preset suitable temperature range can be queried and obtained from a database storing the battery health of each time the battery's ambient temperature is within the first preset suitable temperature range; and the second average battery health can be analyzed and determined based on the total battery health and quantity.

[0083] Step S1B4, analyzing and calculating the second regular period according to the ratio of the first average battery health state to the second average battery health state and the first regular period.

[0084] For example, the ratio of the first average battery health to the second average battery health is 1:1.5, so under the premise that the first regular period is 30 minutes, the second regular period is 45 minutes.

[0085] Reference Figure 4, further considering that when notifying the car owner, the notification can be adjusted in combination with the battery health and the car owner's work schedule, the battery health obtained each time is sent as the information to be sent to the data processing platform, including:

[0086] Step S310, obtaining the regular time period for collecting battery health-related category data and the owner's rest time planning information.

[0087] The rest time planning information of the car owner can be obtained by querying from a preset database storing the rest time planning information of the car owner.

[0088] Step S320, if the health of the battery exceeds the preset health, the rest time of the owner is determined according to the rest time planning information of the owner, and when the owner is in the rest time, the health of the battery is sent to the data processing platform as the information to be sent.

[0089] Step S330: Otherwise, the battery health status is sent to the data processing platform as the information to be sent.

[0090] Wherein, step S330 includes:

[0091] Step S331: If the regular period for collecting battery health-related category data is the first regular period and the battery health is lower than the preset health, the battery health is sent to the data processing platform as information to be sent.

[0092] Step S332: if the period for collecting the battery health-related category data is the second period and the battery health is lower than the preset health, the battery health is sent to the data processing platform as the information to be sent, and at the same time, according to whether the feedback time made by the owner through the data processing platform is within the preset feedback time, it is analyzed and determined whether to change the information sending method, and the owner is notified again;

[0093] Step S333: If no feedback is received within the preset period after notifying the car owner again, the battery health status is sent as information to be sent to the terminal held by the person in charge of the data processing platform, and the person in charge is reminded to indirectly remind the car owner.

[0094] Reference Figure 5 At the same time, in step S332, according to whether the feedback time made by the owner through the data processing platform is within the preset feedback time, analyzing and determining whether to change the information sending method, and notifying the owner again includes:

[0095] Step Sa00, analyzing whether the feedback information from the car owner is received within the preset feedback time. If yes, execute step Sb00; otherwise, execute step Sc00.

[0096] Among them, the feedback information from the car owner is the confirmation information.

[0097] Step Sb00, maintaining the existing settings unchanged.

[0098] Step Sc00, on the contrary, the current state of the car owner is analyzed and obtained according to the rest time planning information of the car owner, and the state of the car owner includes working state and rest state.

[0099] Step Sd00, if the car owner is at work, then according to the preset work schedule information and contact information of the car owner's colleagues, query and obtain the contact information of the colleagues who are at work in the current period, and send notification information to the terminal held by the colleague based on the contact information of the colleagues who are at work in the current period.

[0100] Step Se00, if the car owner is in a resting state, then according to the preset work schedule information and contact information of the car owner's family, query and obtain the contact information of the family members who are in a resting state in the current period, and send notification information to the terminal held by the family members according to the contact information of the family members who are in a resting state in the current period.

[0101] Reference Figure 6 , wherein the acquisition of the preset feedback time in one embodiment of the present application includes:

[0102] Step SA00, obtaining the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner.

[0103] The average feedback time of the car owner to the new information of the data processing platform under different conditions can be obtained by querying from a preset database storing the average feedback time of the car owner to the new information of the data processing platform under different conditions.

[0104] Step SB00, based on the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner, analyze and determine the average feedback time of the car owner in the current state, and use it as the preset feedback time.

[0105] Reference Figure 7 , wherein the acquisition of the preset feedback time in one embodiment of the present application includes:

[0106] Step Sa00, obtaining the average feedback time of the car owners to the new information of the data processing platform in different time periods;

[0107] Step Sb00, based on the average feedback time of the car owner to the new information of the data processing platform in different time periods and the current time period, analyze and determine the average feedback time of the car owner in the current time period, and use it as the preset feedback time.

[0108] The average feedback time of the car owners to the new information of the data processing platform in different time periods can be obtained by querying from a preset database storing the average feedback time of the car owners to the new information of the data processing platform in different time periods.

[0109] Reference Figure 8 , wherein the acquisition of the preset feedback time in one embodiment of the present application includes:

[0110] Step SC00, obtaining the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner, and at the same time obtaining the average feedback time of the car owner to the new information of the data processing platform in different time periods.

[0111] Step SD00, analyzing and determining the average feedback time of the car owner in the current state according to the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner;

[0112] Step SE00, analyzing and determining the average feedback time of the car owner in the current period according to the average feedback time of the car owner to the new information of the data processing platform in different periods and the current period;

[0113] Step SF00, selecting the maximum average feedback time between the average feedback time of the owner in the current period and the average feedback time of the owner in the current state as the preset feedback time.

[0114] Reference Fig. 9 The present application also provides a battery health status automatic assessment system, including:

[0115] The regular acquisition module 1 is used to regularly acquire health-related category data of the battery.

[0116] The analysis and acquisition module 2 is used to analyze and acquire the health of the battery according to the acquired battery health-related category data.

[0117] The sending module 3 is used to send the battery health status obtained each time as information to be sent to the data processing platform.

[0118] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for automatically evaluating the health status of a battery, characterized in that: include: Regularly obtain health-related data of the battery; Analyze and obtain the health of the battery based on the acquired battery health-related category data; The battery health status obtained each time is sent to the data processing platform as information to be sent; Regularly obtain battery health-related data including: Get the ambient temperature of the battery; If the ambient temperature of the battery is within a first preset suitable temperature range, obtaining health-related category data of the battery at a first regular time period; If the ambient temperature of the battery exceeds the first preset suitable temperature range and is within the second preset suitable temperature range, obtaining health-related category data of the battery according to the second regular period, wherein the first regular period exceeds the second regular period; If the ambient temperature of the battery exceeds the second preset suitable temperature range, the health-related category data of the battery is obtained in real time; The acquisition of the second regular period includes: Obtain the battery health status each time the ambient temperature of the battery exceeds the first preset suitable temperature range and is within the second preset suitable temperature range, and the battery health status each time the ambient temperature of the battery is within the first preset suitable temperature range; Analyze and obtain a first average battery health according to the battery health each time the ambient temperature of the battery exceeds the first preset suitable temperature range and is within the second preset suitable temperature range in history; Analyze and obtain a second average battery health according to the battery health at each time when the ambient temperature of the battery is within the first preset suitable temperature range; Analyze and calculate a second regular period according to a ratio of the first average battery health to the second average battery health and the first regular period; Sending the battery health status obtained each time as information to be sent to the data processing platform includes: Obtaining regular time periods for collecting health-related data of the battery and the owner's rest time planning information; If the health of the battery exceeds the preset health, the rest time of the owner is determined according to the rest time planning information of the owner, and when the owner is in the rest time, the health of the battery is sent to the data processing platform as the information to be sent; Otherwise, the battery health status is sent to the data processing platform as information to be sent.

2. A method for automatically evaluating the health status of a battery according to claim 1, characterized in that: Otherwise, the battery health status is sent to the data processing platform as the information to be sent, including: If the periodic period for collecting the battery health-related category data is the first periodic period and the battery health is lower than the preset health, the battery health is sent to the data processing platform as the information to be sent; If the periodic period for collecting battery health-related category data is the second periodic period and the battery health is lower than the preset health, the battery health is sent to the data processing platform as information to be sent, and at the same time, according to whether the feedback time made by the owner through the data processing platform is within the preset feedback time, it is analyzed and determined whether to change the information sending method, and the owner is notified again; If no feedback is received within the preset period after the car owner is notified again, the battery health status will be sent as information to be sent to the terminal held by the person in charge of the data processing platform, and the person in charge will be reminded to indirectly remind the car owner.

3. A method for automatically evaluating the health status of a battery according to claim 2, characterized in that: At the same time, according to whether the feedback time made by the car owner through the data processing platform is within the preset feedback time, it is analyzed and determined whether to change the information sending method, and the car owner is notified again including: Analyze whether the owner's feedback information is received within the preset feedback time; If yes, keep the current settings unchanged; On the contrary, the current state of the owner is analyzed and obtained according to the rest time planning information of the owner, and the state of the owner includes working state and rest state; If the car owner is at work, the contact information of the colleague who is at work during the current period is queried and obtained according to the preset work schedule information and contact information of the colleague of the car owner, and the notification information is sent to the terminal held by the colleague according to the contact information of the colleague who is at work during the current period; If the car owner is resting, the contact information of the family members who are resting in the current period will be queried based on the preset work schedule information and contact information of the car owner's family members, and notification information will be sent to the terminal held by the family members based on the contact information of the family members who are resting in the current period.

4. A method for automatically evaluating the health status of a battery according to claim 3, characterized in that: The acquisition of preset feedback time includes: Obtain the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner; Based on the average feedback time of the car owner to new information on the data processing platform in different states and the current state of the car owner, the average feedback time of the car owner in the current state is analyzed and determined, and used as the preset feedback time.

5. The method for automatically evaluating the battery health status according to claim 3, characterized in that: The acquisition of preset feedback time includes: Obtain the average feedback time of car owners to new information on the data processing platform at different time periods; Based on the average feedback time of car owners to new information on the data processing platform in different time periods and the current time period, the average feedback time of car owners in the current time period is analyzed and determined, and used as the preset feedback time.

6. A method for automatically evaluating the health status of a battery according to claim 3, characterized in that: The acquisition of preset feedback time includes: Obtain the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner, and at the same time obtain the average feedback time of the car owner to the new information of the data processing platform in different time periods; According to the average feedback time of the car owner to the new information of the data processing platform in different states and the current state of the car owner, the average feedback time of the car owner in the current state is analyzed and determined; According to the average feedback time of car owners to new information on the data processing platform in different time periods and the current time period, the average feedback time of car owners in the current time period is analyzed and determined; The maximum average feedback time between the average feedback time of the car owner in the current period and the average feedback time of the car owner in the current state is selected as the preset feedback time.

7. A battery health status automatic assessment system, using the method according to any one of claims 1 to 6, characterized in that: include: A periodic acquisition module (1) is used to: periodically acquire health-related category data of the battery; The analysis and acquisition module (2) is used to: analyze and acquire the health of the battery according to the acquired battery health related category data; The sending module (3) is used to send the battery health status obtained each time as information to be sent to the data processing platform.

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