Reminding method, device and equipment for regular full charge of vehicle and medium

A method for reminding users to perform regular full charge cycles based on cumulative capacity thresholds addresses SOC calibration inaccuracies, enhancing accuracy and extending battery life in electric vehicles.

CN120307952APending Publication Date: 2025-07-15VOYAH AUTOMOBILE TECH CO LTD
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Patent Information

Application Number
CN202510568717.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2025-07-15

AI Technical Summary

Technical Problem

In the prior art, it is difficult to achieve battery SOC calibration for electric vehicles, especially the lithium iron phosphate battery cell cannot be recognized in the range of 25% to 80%, which makes SOC calibration difficult, and the user habitually charges in this range, which increases the calibration difficulty.

Method used

By obtaining the current cumulative charging capacity and discharge capacity of the vehicle battery, setting a preset capacity threshold, issuing a full charge reminder when the cumulative charging capacity and discharge capacity are reached, updating the preset threshold, and dynamically adjusting the battery health status and driving parameters to ensure that the battery is fully charged regularly.

Benefits of technology

It realizes effective calibration of battery SOC, improves user experience, and extends battery life without requiring strict additional conditions, so users develop good car use habits.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a reminding method, device and equipment for regular full charge of a vehicle and a medium, and the reminding method comprises the steps: obtaining the current accumulated charge capacity and the current accumulated discharge capacity corresponding to a vehicle battery, and when the sum of the current accumulated charge capacity and the current accumulated discharge capacity reaches a preset capacity threshold value, reminding the vehicle battery to be fully charged. And sending reminding information of full charging of the vehicle battery, and after the vehicle battery is fully charged, updating the preset capacity threshold value to obtain the updated preset capacity threshold value. When the sum of the current accumulative charging capacity and the current accumulative discharging capacity reaches the preset capacity threshold value, a user can be regularly reminded to fully charge the vehicle battery so as to calibrate the SOC.
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Description

Technical Field

[0001] The present invention relates to the technical field of vehicle charging, and in particular to a method, device, equipment and medium for reminding a vehicle to be fully charged regularly. Background Art

[0002] During the use of electric vehicles, the current is generally integrated by ampere-hour to calculate the actual charging and discharging capacity of the battery, and then the battery's SOC (State of Charge). However, there is a certain error in the current acquisition itself. This error will gradually accumulate over time, causing the SOC deviation to gradually increase, affecting the user experience of the entire vehicle. The conventional practice in the industry is to use the SOC-OCV (State of Charge vs. Open Circuit Voltage Curve, the relationship between the battery state and the open circuit voltage) correction method to perform SOC calibration. This type of method generally has more stringent additional conditions, such as temperature, SOC, current, and standing time. Especially for lithium iron phosphate batteries, their SOC-OCV characteristic curve cannot be identified between 25% and 80% SOC, making SOC calibration more difficult.

[0003] Relatively speaking, regularly fully charging the battery is the best way to calibrate the SOC. However, after data research, it is found that most people prefer to charge the battery in the range of 25% to 80% SOC, making it difficult to fully charge the battery regularly, further increasing the difficulty of vehicle SOC calibration. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a method, device, equipment and medium for reminding a vehicle to fully charge regularly, so as to regularly remind a user to fully charge the vehicle battery to calibrate the SOC.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0006] According to a first aspect of the present application, a method for reminding a vehicle to fully charge regularly is provided, comprising:

[0007] Obtain the current cumulative charging capacity and current cumulative discharging capacity corresponding to the vehicle battery;

[0008] When the sum of the current cumulative charging capacity and the current cumulative discharging capacity reaches a preset capacity threshold, issuing a reminder message for fully charging the vehicle battery;

[0009] After the vehicle battery is fully charged, the preset capacity threshold is updated.

[0010] In some embodiments, based on the foregoing solution, obtaining the current cumulative charge capacity and the current cumulative discharge capacity corresponding to the vehicle includes:

[0011] Obtaining the current cumulative charge capacity according to the sum of the previous cumulative charge capacity and the current charge amount;

[0012] Obtaining the current cumulative discharge capacity according to the sum of the previous cumulative discharge capacity and the current discharge amount, where

[0013] both the previous cumulative charge capacity and the previous cumulative discharge capacity obtained at the moment when the vehicle is powered on for the first time or at the moment of the last full charge are 0.

[0014] In some embodiments, based on the foregoing solution, it further includes:

[0015] Obtaining the current charge amount and the current discharge amount according to the real-time current.

[0016] In some embodiments, based on the foregoing solution, it further includes that a preset capacity threshold is a first threshold, and the first threshold is a first multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, and the value of the first multiple is a real number between 1 and 5.

[0017] In some embodiments, before sending a reminder message for a full charge of the vehicle battery when the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches the preset capacity threshold, it further includes:

[0018] Obtaining a second threshold based on the vehicle state parameters;

[0019] If the second threshold is greater than a second multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, the second threshold is less than a third multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, and the values of both the second multiple and the third multiple are real numbers between 1 and 5, and the third multiple is greater than the second multiple, then the preset capacity threshold is the second threshold;

[0020] If the second threshold is less than or equal to the second multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, then the preset capacity threshold is the second multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period;

[0021] If the second threshold is greater than or equal to the third multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, then the preset capacity threshold is the third multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period.

[0022] In some embodiments, based on the foregoing solution, it further includes:

[0023] The calculation formula for the second threshold is:

[0024] P = (L1 * kp1 / p0) * C0 * soh1

[0025] Wherein, P is the second threshold, L1 is the mileage traveled by the vehicle from the time of the penultimate full charge to the time of the last full charge, kp1 is the current average energy consumption of the vehicle, p0 is the rated power of the battery at the preset temperature, C0 is the rated capacity of the battery at the preset temperature, and soh1 is the battery health state value of the vehicle.

[0026] In some embodiments, based on the foregoing solution, it further includes:

[0027] The calculation formula for the cumulative charge and discharge capacity of the vehicle within a preset time period is:

[0028] P0 = (L1 * kp / p0) * C0 * 100%

[0029] Wherein, P0 is the cumulative charge and discharge capacity of the vehicle within a preset time period, L0 is the total mileage traveled by the vehicle within a preset time period, kp is the average energy consumption of the vehicle under the WLTC working condition, p0 is the rated power of the battery at the preset temperature, and C0 is the rated capacity of the battery at the preset temperature.

[0030] According to the second aspect of the present application, there is provided a reminder device for periodically fully charging a vehicle, the device includes:

[0031] An acquisition module, configured to acquire the current cumulative charge capacity and the current cumulative discharge capacity corresponding to the vehicle battery;

[0032] A reminder module, configured to send a reminder message for fully charging the vehicle battery when the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches a preset capacity threshold;

[0033] An update module, configured to update the preset capacity threshold after the vehicle battery is fully charged.

[0034] According to the third aspect of the present application, there is provided an electronic device, including:

[0035] One or more processors;

[0036] A memory, configured to store executable instructions of the processor, and when the executable instructions are executed by one or more processors, enable the one or more processors to implement the above method.

[0037] According to the fourth aspect of the present application, there is provided a computer-readable storage medium, on which a computer program is stored, the computer program includes executable instructions, and when the executable instructions are executed by a processor, the above method is implemented.

[0038] The beneficial effects of the present application are as follows:

[0039] The vehicle regular full charge reminder method, device, equipment and medium provided by this application can send a full charge reminder message when the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches a preset capacity threshold, calibrate the SOC to achieve the purpose of improving the user experience, and has better initiative compared with other SOC calibration strategies, without harsh additional conditions. At the same time, it can help users develop good vehicle use habits, extend the service life of the battery, and enhance the vehicle use experience.

[0040] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. Brief Description of the Drawings

[0041] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0042] Figure 1 It is the engineering flowchart of the vehicle regular full charge reminder method of this embodiment;

[0043] Figure 2 It is the schematic diagram of the vehicle regular full charge reminder device of this embodiment;

[0044] Figure 3 It is the schematic diagram of the electronic device of this embodiment. Detailed Description of the Embodiments

[0045] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the protection scope of the present invention.

[0046] In addition, the described features, structures or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, many specific details are provided to give a full understanding of the embodiments of this application. However, those skilled in the art will realize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0047] The block diagrams shown in the drawings are only functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0048] The flowcharts shown in the drawings are only exemplary illustrations, and do not necessarily include all the contents and operations / steps, nor do they necessarily need to be executed in the described order. For example, some operations / steps can be decomposed, while some operations / steps can be combined or partially combined. Therefore, the actual execution order may change according to the actual situation.

[0049] In the description of this application, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise stated, the meaning of "plurality" is two or more.

[0050] Figure 1 The engineering flowchart of the reminder method for regular full charging of a vehicle in this embodiment is shown. According to the first aspect of this application, this embodiment provides a reminder method for regular full charging of a vehicle, including:

[0051] Step 101: Obtain the current cumulative charging capacity and the current cumulative discharging capacity corresponding to the vehicle battery.

[0052] In some embodiments, the vehicle battery may refer to a certain battery in the vehicle or the energy storage system in the vehicle.

[0053] In some embodiments, the current cumulative charging capacity refers to the total electric energy that has been charged into a certain battery or the energy storage system in the vehicle during the current period. The current cumulative charging capacity reflects the total electric energy received by a certain battery or the energy storage system in the vehicle during the current period, and is one of the important indicators for measuring the usage and energy throughput of a certain battery or the energy storage system.

[0054] In some embodiments, the current cumulative discharging capacity refers to the total amount of electricity that has been discharged by a certain battery or the energy storage system in the vehicle during its life cycle. The current cumulative discharging capacity reflects the total electric energy actually output by a certain battery or the energy storage system in the vehicle during the current period, and is one of the important indicators for evaluating the actual workload and energy throughput of a certain battery or the energy storage system.

[0055] Exemplarily, obtaining the current cumulative charge capacity and the current cumulative discharge capacity corresponding to the vehicle battery usually requires querying through the vehicle's own system, in-vehicle display screen, manufacturer's APP, or third-party tools. This embodiment does not limit this. In the specific implementation manner of this embodiment, the BMS (Battery Management System) records the current cumulative charge capacity and the current cumulative discharge capacity of the battery in real time.

[0056] In some embodiments, obtaining the current cumulative charge capacity and the current cumulative discharge capacity corresponding to the vehicle includes:

[0057] Obtaining the current cumulative charge capacity according to the sum of the previous cumulative charge capacity and the current charge amount; obtaining the current cumulative discharge capacity according to the sum of the previous cumulative discharge capacity and the current discharge amount, where the previous cumulative charge capacity and the previous cumulative discharge capacity obtained at the moment of the vehicle's first power-on or the moment of the last full charge are both 0.

[0058] Specifically, taking the moment of the vehicle's first power-on or the moment of the last full charge as the initial moment for obtaining the previous cumulative charge capacity and the previous cumulative discharge capacity, at the initial moment, the previous cumulative charge capacity is 0, and the previous cumulative discharge capacity is 0.

[0059] Exemplarily, the previous cumulative charge capacity refers to the total electric energy that has been charged into a certain battery or energy storage system in the vehicle during the previous period. The current charge amount refers to the charge amount of a certain battery or energy storage system in the vehicle this time.

[0060] The previous cumulative discharge capacity refers to the total electric energy that has been received by a certain battery or energy storage system in the vehicle during the previous period. The current discharge amount refers to the discharge amount of a certain battery or energy storage system in the vehicle this time.

[0061] In some embodiments, the current charge amount and the current discharge amount are obtained according to the real-time current.

[0062] Specifically, the calculation formula for obtaining the current cumulative charge capacity is:

[0063] P t2 =P t1 +ΔP t1

[0064]

[0065] where P t2 is the current cumulative charge capacity, P t1 is the previous cumulative charge capacity, ΔP t1 is the sum of the current charge amounts, and i1 is the current charge current.

[0066]

[0067] Among them, is the current cumulative discharge capacity, is the previous cumulative discharge capacity, is the sum of the current discharge amounts, and i2 is the current discharge current.

[0068] Step 102: When the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches a preset capacity threshold, send a reminder message for a full charge of the vehicle battery.

[0069] In some embodiments, if the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches the preset capacity threshold, it indicates that the user has traveled a certain mileage. At this time, a full charge reminder message is sent to remind the user to fully charge the vehicle battery. By the user fully charging the vehicle battery, the SOC is calibrated. This method is SOC static calibration.

[0070] Specifically, if the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches the preset capacity threshold, the BMS sends a full charge reminder message. Among them, the preset capacity threshold can be calculated based on parameters such as the state of health of the battery SOH, the driving mileage of the vehicle, and the average driving energy consumption.

[0071] In some embodiments, the preset capacity threshold is determined according to user needs. The preset capacity threshold can be the first threshold set by the user himself, or the second threshold obtained according to the vehicle state. The second threshold changes dynamically according to the vehicle state.

[0072] In this way, the user can be reminded to fully charge the vehicle battery regularly to increase the battery life.

[0073] In some embodiments, the reminder message can be transmitted to the user through the instrument panel, mobile phone app, pop-up window on the central control screen, etc. This embodiment does not make any limitations in this regard.

[0074] In some embodiments, when the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches the preset capacity threshold, a full charge reminder message is sent, including:

[0075] The preset capacity threshold is the first threshold, and the first threshold is the first multiple of the cumulative charge and discharge capacity of the vehicle within a preset time period. The value of the first multiple is a real number between 1 and 5.

[0076] In some embodiments, the preset time is the reference time or the time selected by the user himself. In the case where the user uses the vehicle less, the reference time can be 1 month or 2 months. In the case where the user uses the vehicle more, the reference time can be 1 week or 2 weeks. This embodiment does not make any limitations in this regard.

[0077] Exemplarily, when the preset time is the reference time, the preset time is dynamically calculated by comprehensively considering factors such as the battery state, the power of the charging device, and the BMS control strategy. For example, the larger the vehicle battery capacity, the longer the preset time; the lower the ambient temperature, the longer the preset time; the longer the vehicle battery has been used, the shorter the preset time. By setting different preset times for different situations, the effect of SOC calibration is better, which is more conducive to protecting the battery.

[0078] Specifically, when the preset time is the reference time, parameters related to the reference time can be selected through the analytic hierarchy process. Specifically, the target layer, criterion layer, and index layer are set. The reference time is selected as the target layer, and charging efficiency, ambient temperature, battery life, etc. are selected as the criterion layer. Charging power, battery health (SOH), ambient temperature, and heat dissipation conditions are selected as the index layer. This embodiment does not limit this. The parameters with different dimensions are unified into the [0,1] interval, and the importance of each parameter is quantified through expert scoring (1-9 scale method). Subsequently, an AHP judgment matrix needs to be constructed to calculate the weights of each parameter and test the consistency, and finally the reference time is obtained. Therefore, the reference times of different users are different.

[0079] In addition, the weights of each parameter can be corrected according to the actual charging time consumed recently, and the proportion of the weights of each parameter can also be adjusted in combination with battery aging data.

[0080] In this way, in optimizing the reference time, the core dimensions such as charging efficiency, battery state, and environmental factors are clarified through layering, avoiding missing key factors, and ensuring that the obtained reference time is accurate and conforms to the user's vehicle usage situation.

[0081] In some embodiments, in order to ensure that the reminder of full charge is not too frequent or cannot be triggered for a long time, before sending a reminder message for the vehicle battery to be fully charged when the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches a preset capacity threshold, it further includes:

[0082] Obtaining a second threshold based on vehicle state parameters;

[0083] If the second threshold is greater than twice the cumulative charge and discharge capacity of the vehicle within a preset time period and less than three times the cumulative charge and discharge capacity of the vehicle within a preset time period, where the values of both the second multiple and the third multiple are real numbers between 1 and 5, and the third multiple is greater than the second multiple, then the preset capacity threshold is the second threshold;

[0084] If the second threshold is less than or equal to twice the cumulative charge and discharge capacity of the vehicle within a preset time period, then the preset capacity threshold is twice the cumulative charge and discharge capacity of the vehicle within a preset time period;

[0085] If the second threshold is greater than or equal to three times the cumulative charge-discharge capacity of the vehicle within a preset time period, the preset capacity threshold is three times the cumulative charge-discharge capacity of the vehicle within the preset time period.

[0086] Specifically, the selection of the second multiple and the third multiple can also be obtained by using the analytic hierarchy process according to the user's vehicle usage situation.

[0087] In some embodiments, the second threshold of each type of vehicle is different, and different vehicles can select different parameters to calculate the second threshold.

[0088] In the specific implementation manner of this embodiment, the second threshold is related to the mileage traveled at the time of the penultimate full charge and the last full charge, the current average energy consumption of the vehicle, the rated power of the battery at the preset temperature, the rated capacity of the battery at the preset temperature, and the battery health state value of the vehicle. Through these parameters, the second threshold is dynamically adjusted to avoid overcharging / overdischarging caused by battery performance degradation, slow down capacity attenuation, and combine the mileage traveled at the time of the penultimate full charge and the last full charge to identify the change trend of the actual available energy of the battery, and dynamically correct the second threshold to match the actual capacity of the current battery. In addition, a single parameter may be interfered by short-term fluctuations. Combining multi-dimensional data such as the mileage traveled at the time of the penultimate full charge and the last full charge, the current average energy consumption of the vehicle, the rated power of the battery at the preset temperature, the rated capacity of the battery at the preset temperature, and the battery health state value of the vehicle can improve the reliability of threshold setting.

[0089] The calculation formula of the second threshold is:

[0090] P = (L1 * kp1 / p0) * C0 * soh1

[0091] Wherein, P is the second threshold, L1 is the mileage traveled at the time of the penultimate full charge and the last full charge, kp1 is the current average energy consumption of the vehicle, p0 is the rated power of the battery at the preset temperature, C0 is the rated capacity of the battery at the preset temperature, and soh1 is the battery health state value of the vehicle.

[0092] Among them, the current average energy consumption refers to the amount of energy consumed by the vehicle per unit distance or unit time during driving, and is usually displayed in units of new energy vehicle kilowatt-hours per 100 kilometers (kWh / 100km).

[0093] Since L1, kp1, and soh1 change with time, the second threshold is a dynamic threshold.

[0094] Exemplarily, the preset temperature usually takes a real number between 25°C and 30°C, and is specifically determined according to the operating temperature set by the battery factory.

[0095] In this way, by intelligently adjusting the second threshold, it is ensured that the preset capacity threshold is related to the mileage traveled at the time of the penultimate full charge and the last full charge, the current average energy consumption of the vehicle, the rated power of the battery at the preset temperature, the rated capacity of the battery at the preset temperature, and the battery health state value of the vehicle, so that the preset capacity threshold achieves a balance among battery life, user experience, and environmental adaptability, and optimizes the battery charge and discharge performance. By setting the second threshold, the time of the full charge reminder can be adjusted according to the user's driving habits. For example, if the user has good driving habits and the overall energy consumption is relatively low, then assuming the same mileage is traveled, the time used is longer. By reducing the second threshold, the number of full charges can be increased. And through adaptive learning, an optimal balance is achieved among life, safety, user experience, and energy efficiency, which is especially suitable for the complex operating environment of electric vehicles.

[0096] In this way, if the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches the preset capacity threshold, a full charge reminder message is sent, and the SOC is calibrated to achieve the purpose of improving the user experience. Moreover, compared with other SOC calibration strategies, it has better initiative, does not require harsh additional conditions, and can also enable users to develop good vehicle usage habits, extend the service life of the battery, and improve the vehicle usage experience.

[0097] In some embodiments, the cumulative charge and discharge capacity of each vehicle within a preset time period is different.

[0098] In the specific implementation manner of this embodiment, the cumulative charge and discharge capacity of the vehicle within a preset time period is related to the cumulative charge and discharge capacity of the vehicle within a preset time period, the total driving mileage of the vehicle within a preset time period, the average energy consumption of the vehicle under the WLTC working condition, the rated power of the battery at the preset temperature, and the rated capacity of the battery at the preset temperature.

[0099] The calculation formula for the cumulative charge and discharge capacity of the vehicle within a preset time period is:

[0100] P0 = (L1 * kp / p0) * C0 * 100%

[0101] where P0 is the cumulative charge and discharge capacity of the vehicle within a preset time period, L0 is the total driving mileage of the vehicle within a preset time period, kp is the average energy consumption of the vehicle under the WLTC working condition, p0 is the rated power of the battery at the preset temperature, and C0 is the rated capacity of the battery at the preset temperature.

[0102] Among them, the WLTC cycle (Worldwide Harmonized Light Vehicles Test Cycle) is an international standardized test procedure for evaluating the fuel consumption, power consumption, and emissions of light vehicles such as fuel vehicles, electric vehicles, and hybrid vehicles. It aims to simulate real driving conditions in different regions of the world and replace the outdated NEDC cycle.

[0103] In a specific embodiment, the second multiple is 1 and the third multiple is 5, ensuring that the reminder for full charge is not too frequent or cannot be triggered for a long time, and P0 ≤ the second threshold ≤ 5P0.

[0104] That is to say, if the second threshold is greater than P0 and less than 5P0, the preset capacity threshold is the second threshold;

[0105] If the second threshold is less than or equal to P0, the preset capacity threshold is P0;

[0106] If the second threshold is greater than or equal to 5P0, the preset capacity threshold is 5P0.

[0107] In addition, before sending a reminder message for full charge of the vehicle battery when the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches the preset capacity threshold, it further includes:

[0108] Obtain the current battery power and the current ambient temperature;

[0109] If the current ambient temperature is greater than 0°C and the current battery power is less than the preset power threshold, send a reminder message for powering down and standing still the vehicle battery, where the standing still time is greater than the preset time threshold.

[0110] Exemplarily, the current battery power refers to the percentage of the remaining available energy of the battery at the current moment in the total capacity, which is used to intuitively reflect the remaining driving range of the battery. The current ambient temperature refers to the air temperature of the natural environment outside the vehicle and has nothing to do with the temperature inside the vehicle, the engine temperature, or the air outlet temperature of the air conditioner. The current ambient temperature is usually obtained through a temperature sensor.

[0111] In this way, static OCV correction is achieved for SOC calibration. Compared with dynamic OCV correction and other SOC calibration strategies, it has better initiative, does not require harsh additional conditions, and can also enable users to develop good vehicle usage habits, extend the service life of the battery, and improve the vehicle usage experience.

[0112] Since static placement requires sufficient time (from several hours to several days), it is not applicable to continuously running vehicles. Sending a reminder message for a fully charged vehicle battery relies on an accurate battery model and parameter identification, resulting in high computational complexity. Therefore, in this embodiment, when calibrating the SOC, when the vehicle does not need to run continuously, static placement for a sufficient time (from several hours to several days) is used to calibrate the SOC, and when the vehicle needs to run continuously, full charge is used to calibrate the SOC.

[0113] This embodiment combines static placement and full charge to calibrate the SOC, which can balance long-term stability and dynamic response capabilities. It is the core method to improve the SOC estimation accuracy of the BMS (Battery Management System), especially crucial for scenarios with high-precision requirements.

[0114] Step 103: After the vehicle battery is fully charged, update the preset capacity threshold to obtain the updated preset capacity threshold.

[0115] In some embodiments, after each full charge, L1, kp1, and soh1 will change, so it is necessary to update the preset capacity threshold.

[0116] According to the second aspect of the present application, this embodiment provides a reminder device for regular full charge of a vehicle, as Figure 2 shown. The device includes:

[0117] An acquisition module 201, configured to acquire the current cumulative charge capacity and the current cumulative discharge capacity corresponding to the vehicle battery;

[0118] A reminder module 202, configured to send a reminder message for a fully charged vehicle battery when the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches the preset capacity threshold;

[0119] An update module 203, configured to update the preset capacity threshold after the vehicle battery is fully charged.

[0120] In some embodiments, the acquisition module further includes: being configured to obtain the current cumulative charge capacity according to the sum of the previous cumulative charge capacity and the current charge amount; obtain the current cumulative discharge capacity according to the sum of the previous cumulative discharge capacity and the current discharge amount, where the previous cumulative charge capacity and the previous cumulative discharge capacity obtained at the moment of the vehicle's first power-on or the moment of the previous full charge are both 0.

[0121] In some embodiments, the acquisition module further includes: being configured to obtain the current charge amount and the current discharge amount according to the real-time current.

[0122] In some embodiments, the reminder module further includes: being configured that the preset capacity threshold is a first threshold, and the first threshold is a first multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, and the value of the first multiple is a real number from 1 to 5.

[0123] In some embodiments, the reminder module further includes: means for obtaining a second threshold value based on vehicle state parameters; if the second threshold value is greater than a second multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, the second threshold value is less than a third multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, and the values of the second multiple and the third multiple are both real numbers in the range of 1 to 5, and the third multiple is greater than the second multiple, then the preset capacity threshold value is the second threshold value; if the second threshold value is less than or equal to the second multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, then the preset capacity threshold value is the second multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period; if the second threshold value is greater than or equal to the third multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period, then the preset capacity threshold value is the third multiple of the cumulative charge-discharge capacity of the vehicle within a preset time period.

[0124] In some embodiments, the reminder module further includes: means for obtaining a second threshold value, and the calculation formula of the second threshold value is:

[0125] P=(L1*kp1 / p0)*C0*soh1

[0126] Wherein, P is the second threshold value, L1 is the mileage traveled between the moment of the penultimate full charge and the moment of the last full charge, kp1 is the current average energy consumption of the vehicle, p0 is the rated power of the battery at the preset temperature, C0 is the rated capacity of the battery at the preset temperature, and soh1 is the battery health state value of the vehicle.

[0127] In some embodiments, the reminder module further includes: means for obtaining the cumulative charge-discharge capacity of the vehicle within a preset time period, and the calculation formula of the cumulative charge-discharge capacity of the vehicle within a preset time period is:

[0128] P0=(L1*kp / p0)*C0*100%

[0129] Wherein, P0 is the cumulative charge-discharge capacity of the vehicle within a preset time period, L0 is the total mileage traveled by the vehicle within a preset time period, kp is the average energy consumption of the vehicle under the WLTC working condition, p0 is the rated power of the battery at the preset temperature, and C0 is the rated capacity of the battery at the preset temperature.

[0130] According to the third aspect of the present application, the present embodiment provides an electronic device, as Figure 3 shown, including:

[0131] One or more processors;

[0132] A memory for storing executable instructions of the processor, and when the executable instructions are executed by one or more processors, one or more processors are caused to implement the above method.

[0133] The electronic device is presented in the form of a general-purpose computing device. The components of the electronic device may include, but are not limited to: the above-mentioned at least one processor 301, the above-mentioned at least one memory 302, and a bus 303 connecting different system components (including the memory 302 and the processor 301).

[0134] The processor 301 is the control center of the electronic device, connecting various parts of the entire electronic device through various interfaces and lines. By running or executing software programs and / or modules stored in the memory 302, and by invoking the data stored in the memory 302, it executes various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. It can be understood that the processor 301 transmits signals with the controller. Optionally, the processor 301 may include one or more processing cores; preferably, the processor 301 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 301 either.

[0135] The memory 302 can be used to store software programs and modules. The processor 301 executes various functional applications and data processing by running the software programs and modules stored in the memory 302. The memory 302 may mainly include a program storage area and a data storage area. Among them, the program storage area may store the operating system, application programs required for at least one function (such as the sound playback function, the image playback function, etc.); the data storage area may store data created according to the use of the electronic device. In addition, the memory 302 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. Correspondingly, the memory 302 may also include a memory controller to provide the processor 301 with access to the memory 302.

[0136] According to the fourth aspect of the present application, this embodiment provides a computer-readable storage medium, on which a computer program is stored. The computer program includes executable instructions, and when the executable instructions are executed by the processor, the above-mentioned method is implemented. In some possible implementation manners, each aspect of the present application may also be implemented in the form of a program product, which includes program code. When the program product runs on the electronic device, the program code is used to cause the electronic device to execute the steps according to various exemplary embodiments described in the above "Exemplary Method" section of this specification.

[0137] The program product may employ any combination of one or more readable media. The readable media may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0138] The computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which the readable program code is carried. Such a propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. The readable signal medium may also be any readable medium other than the readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device.

[0139] The program code contained on the readable medium may be transmitted by any appropriate medium, including but not limited to wireless, wired, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0140] The program code for performing the operations of the present application may be written in any combination of one or more programming languages, including object-oriented programming languages such as Java, C++, etc., and also including conventional procedural programming languages such as the "C" language or similar programming languages. The program code may be executed entirely on the user's computing device, partially on the user's device, executed as a stand-alone software package, partially on the user's computing device and partially on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user's computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., through the Internet using an Internet service provider).

[0141] Although specific embodiments of the present invention have been described in detail herein, they are given for purposes of explanation only and should not be considered as limiting the scope of the present invention. Various alternative and modification schemes may be proposed without departing from the core and scope of the present invention.

Claims

1. A method for reminding of regular full charging of a vehicle, characterized in that, Including: Obtain the current cumulative charge capacity and the current cumulative discharge capacity corresponding to the vehicle; When the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches a preset capacity threshold, send a reminder message for a full charge of the vehicle battery; After the vehicle battery is fully charged, update the preset capacity threshold.

2. The method according to claim 1, wherein The obtaining of the current cumulative charge capacity and the current cumulative discharge capacity corresponding to the vehicle includes: Obtain the current cumulative charge capacity according to the sum of the previous cumulative charge capacity and the current charge amount; Obtain the current cumulative discharge capacity according to the sum of the previous cumulative discharge capacity and the current discharge amount, where the previous cumulative charge capacity and the previous cumulative discharge capacity obtained at the moment of the vehicle's first power-on or the moment of the last full charge are both 0.

3. The method according to claim 2, wherein It further includes: Obtain the current charge amount and the current discharge amount according to the real-time current.

4. The method according to claim 1, characterized in that, It further includes: The preset capacity threshold is a first threshold, and the first threshold is a first multiple of the cumulative charge and discharge capacity of the vehicle within a preset time period, and the value of the first multiple is a real number between 1 and 5.

5. The method according to claim 1, characterized in that, Before sending the reminder message for a full charge of the vehicle battery when the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches the preset capacity threshold, it further includes: Obtain a second threshold based on the vehicle state parameters; If the second threshold is greater than the second multiple of the cumulative charge and discharge capacity of the vehicle within a preset time period, the second threshold is less than the third multiple of the cumulative charge and discharge capacity of the vehicle within a preset time period, and the values of the second multiple and the third multiple are both real numbers between 1 and 5, and the third multiple is greater than the second multiple, then the preset capacity threshold is the second threshold; If the second threshold is less than or equal to the second multiple of the cumulative charge and discharge capacity of the vehicle within a preset time period, then the preset capacity threshold is the second multiple of the cumulative charge and discharge capacity of the vehicle within a preset time period; If the second threshold is greater than or equal to the third multiple of the cumulative charge and discharge capacity of the vehicle within a preset time period, then the preset capacity threshold is the third multiple of the cumulative charge and discharge capacity of the vehicle within a preset time period.

6. The method according to claim 1, characterized in that, It further includes: The calculation formula for the second threshold is: P = (L1 * kp1 / p0) * C0 * soh1 Where P is the second threshold, L1 is the mileage traveled by the vehicle from the moment of the penultimate full charge to the moment of the last full charge, kp1 is the current average energy consumption of the vehicle, p0 is the rated power of the battery at a preset temperature, C0 is the rated capacity of the battery at a preset temperature, and soh1 is the battery health state value of the vehicle.

7. The method according to claim 4 or 5, characterized in that, It further includes: The calculation formula for the cumulative charge and discharge capacity of the vehicle within a preset time period is: P0 = (L1 * kp / p0) * C0 * 100% Where P0 is the cumulative charge and discharge capacity of the vehicle within a preset time period, L0 is the total mileage traveled by the vehicle within a preset time period, kp is the average energy consumption of the vehicle under the WLTC working condition, p0 is the rated power of the battery at a preset temperature, and C0 is the rated capacity of the battery at a preset temperature.

8. A reminder device for regularly fully charging a vehicle, characterized in that, The device includes: An acquisition module, configured to acquire the current cumulative charge capacity and the current cumulative discharge capacity corresponding to a vehicle battery; a reminder module, configured to send a reminder message for a full charge of the vehicle battery when the sum of the current cumulative charge capacity and the current cumulative discharge capacity reaches a preset capacity threshold; An update module, configured to update the preset capacity threshold after the vehicle battery is fully charged.

9. An electronic device, characterized in that, Comprising: One or more processors; A memory, configured to store executable instructions of the processor, and when the executable instructions are executed by the one or more processors, enabling the one or more processors to implement the method according to any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, The computer program comprises executable instructions, and when the executable instructions are executed by a processor, implementing the method according to any one of claims 1-7.