Charging control method of vehicle storage battery and electronic device

Abstract

The application provides a charging control method of a vehicle storage battery and an electronic device. When the off low electricity ratio is greater than or equal to a preset ratio threshold value, and the battery electricity of the storage battery is less than or equal to a preset required electricity when the vehicle is started next time, the charging voltage of the storage battery is increased when the vehicle is started next time. When the off low electricity ratio is less than the preset ratio threshold value, and the running low electricity ratio meets a preset high-voltage charging condition, the charging voltage of the storage battery is increased when the vehicle is started next time. The use habits of the user are analyzed by obtaining historical electricity data and historical driving data, the charging voltage of the storage battery is increased when there is a risk of electricity loss, the charging efficiency of the storage battery is improved, and the service life of the storage battery is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a charging control method and electronic device for a vehicle battery. Background Technology

[0002] Most users primarily use their vehicles for commuting to work, which involves short journeys and low speeds. As a result, the low-voltage battery in the vehicle cannot be properly charged, and the battery charge remains at a low level. With static consumption after the engine is turned off, the risk of battery depletion is greatly increased. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a charging control method and electronic device for a vehicle battery to avoid battery depletion caused by driving habits.

[0004] To achieve the above objectives, the first aspect of this application provides a charging control method for a vehicle battery, comprising:

[0005] Determine the percentage of low battery when the vehicle is in motion and the percentage of low battery when the vehicle is off based on historical power data.

[0006] In response to the low battery percentage after engine shutdown being greater than or equal to a preset percentage threshold, and the battery charge being less than or equal to a preset required charge when the vehicle is started next time, the charging voltage of the battery is increased when the vehicle is started next time.

[0007] In response to the low battery percentage during engine shutdown being less than a preset percentage threshold, and the low battery percentage during operation meeting preset high-voltage charging conditions, the charging voltage of the battery is increased when the vehicle is started next time.

[0008] A second aspect of this application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the method provided in the first aspect of this application.

[0009] As can be seen from the above, the vehicle battery charging control method and electronic equipment provided in this application can determine the low battery percentage during vehicle operation and the low battery percentage when the vehicle is turned off based on historical power data. When the low battery percentage is greater than or equal to a preset percentage threshold, and the battery capacity is less than or equal to a preset required capacity when the vehicle is started next time, the charging voltage of the battery is increased when the vehicle is started next time. When the low battery percentage is less than the preset percentage threshold, and the low battery percentage meets the preset high-voltage charging conditions, the charging voltage of the battery is increased when the vehicle is started next time. Without increasing the hardware structure, it only needs to analyze the user's driving habits by acquiring historical power data, and determine whether there is a risk of battery depletion based on the driving habits. When there is a risk of battery depletion, the charging voltage of the battery is increased when the vehicle is started next time, thereby improving the charging efficiency of the battery, avoiding over-discharge of the battery, and extending the battery's service life. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a flowchart of a vehicle battery charging control method according to an embodiment of this application;

[0012] Figure 2 A flowchart for determining the low battery percentage during vehicle operation in this application embodiment;

[0013] Figure 3 A flowchart illustrating the low battery percentage during vehicle shutdown in this embodiment of the application.

[0014] Figure 4 This is a flowchart illustrating the process of determining vehicle driving parameters in an embodiment of this application.

[0015] Figure 5 This is a flowchart illustrating how to determine whether preset fast charging conditions are met in an embodiment of this application.

[0016] Figure 6 This is a flowchart illustrating how the charging voltage of the battery is increased during the next start-up of the vehicle, as described in this application.

[0017] Figure 7 This is a schematic diagram of the structure of the charging control device for a vehicle battery according to an embodiment of this application;

[0018] Figure 8 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] It is important to understand in this article that any number of elements in the accompanying figures is for illustrative purposes and not for limitation, and that any naming is for distinction only and has no limiting meaning.

[0022] Based on the above background description, the following situations also exist in the related technologies:

[0023] When the vehicle is turned off and locked, and the sleep conditions are met, all vehicle controllers will go into sleep mode. However, the controllers will still have static current at this time, continuously consuming the vehicle's battery. If the battery remains at a low state of charge (SOC), as the power consumption time increases, the battery's charge will become less than or equal to the minimum charge required for operation, increasing the risk of battery depletion.

[0024] The charging strategy in related technologies involves charging the vehicle battery only when its charge level is less than or equal to a certain value or its voltage drops to a low value. However, this charging strategy is not applicable to all usage scenarios. Because different users have different driving habits, for scenarios with short driving periods, taking the scenario where charging starts when the battery charge is less than or equal to 20% as an example, if the battery charge is low (e.g., 25%) when the vehicle starts, although the battery charge is low, it is still above 20%, so charging will not begin. After driving a certain distance, the battery charge drops to 20%, and charging begins. However, due to the short driving time, the user may have reached their destination and turned off the vehicle when the battery charge reaches 30%, interrupting the charging process. This causes the battery to remain in a low-charge state. In this case, the vehicle continues to consume battery power after the engine is turned off, potentially leading to battery depletion and affecting battery life.

[0025] If users consistently maintain a short-duration, high-frequency driving habit, the battery will remain in a low-charge state, requiring frequent charging and reducing its lifespan. While some technologies employ strategies to increase the initial charging charge level to avoid this, setting a high initial charge level, such as 60%, means starting charging when the battery is below or equal to 60%. Although this prevents the battery from being chronically low-charged, it necessitates frequent charging. Even when fully charged, only about 40% of the charge is actually used, and frequent charging and discharging further reduces battery life and provides a poor user experience. Therefore, current technologies lack charging strategies for scenarios with low driving frequency and short usage durations, leading to a persistently low battery state, reduced battery life, and a higher risk of battery depletion.

[0026] The vehicle battery charging control method and electronic device provided in this application can determine the low battery percentage during vehicle operation and the low battery percentage when the vehicle is off based on historical power data. When the low battery percentage is greater than or equal to a preset threshold, and the battery capacity is less than or equal to a preset required capacity when the vehicle is started next time, the charging voltage of the battery is increased. When the low battery percentage is less than the preset threshold, and the low battery percentage meets preset high-voltage charging conditions, the charging voltage of the battery is increased when the vehicle is started next time. Without adding hardware, it only requires analyzing user driving habits by acquiring historical power data and determining whether there is a risk of battery depletion based on these habits. If there is a risk of depletion, the charging voltage of the battery is increased when the vehicle is started next time, thereby improving battery charging efficiency, preventing over-discharge of the battery, and extending battery life.

[0027] The charging control method for a vehicle battery according to an exemplary embodiment of this application will now be described with reference to the accompanying drawings.

[0028] In some embodiments, such as Figure 1 As shown, a charging control method for a vehicle battery includes:

[0029] Step 101: Determine the percentage of low battery when the vehicle is in motion and the percentage of low battery when the vehicle is off based on historical battery data.

[0030] In practice, it's necessary to determine whether the battery is at risk of being depleted and whether it's in a prolonged low-charge state based on historical power data, even if the user's driving habits are infrequent and short-duration. However, if the battery consistently maintains a healthy charge level, the conventional charging strategy (charging when the charge level is less than or equal to a preset calibration value) can continue to be used.

[0031] Whether a battery is at risk of running out of power is primarily determined by the amount of power discharged when the vehicle is turned off. If the battery charge drops below 30%, it is considered low. The smaller the difference between the discharged power and the 30% discharge level, the greater the risk of battery depletion. When the difference between the discharged power and the 30% discharge level increases to a certain extent (e.g., 30%), it can be determined that static power consumption after turning off the engine will hardly cause the battery to run out of power. Therefore, 30% + 30% = 60% is set as the power threshold. If the discharged power is less than or equal to this threshold, the battery is in a low-power state and there is a risk of battery depletion. If the discharged power is greater than this threshold, the battery is in a healthy state, and short-term engine shutdown will not pose a risk of battery depletion. Therefore, the relationship between the preset power threshold and the discharged power level can be used to determine whether there is a risk of battery depletion.

[0032] However, a single judgment is highly random, so it's necessary to analyze historical power consumption data to determine the low-battery shutdown percentage. The low-battery shutdown percentage refers to the ratio of the number of times the engine shuts down at a low battery level to the total number of detected shutdowns. For example, if 100 shutdowns were recorded in the historical power consumption data, and 40 of those shutdowns were at or below the power threshold, the low-battery shutdown percentage is determined to be 40%. If 60 of those shutdowns were at or below the power threshold, the low-battery shutdown percentage is determined to be 60%.

[0033] Whether a battery is in a long-term low-charge state is mainly determined by the battery charge level detected during vehicle operation. The vehicle will detect the battery charge level at a certain frequency during operation, and the battery charge level can be determined based on the detected charge level data in the historical data.

[0034] Whether a battery is in a prolonged low-battery state can be measured by the low-battery ratio. The low-battery ratio represents the ratio of the number of detected charges that are less than or equal to a certain charge threshold to the total number of detected charges. Since charge detection is performed at a certain frequency, the number of detections is directly proportional to the duration. Therefore, the number of detected charges less than or equal to the threshold corresponds to the duration the battery has been in a low-battery state, and the total number of detected charges corresponds to the total duration of charge detection recorded in historical data. The ratio of the number of charges to the duration is also a ratio of the number of charges to the duration. Therefore, a higher low-battery ratio indicates that the vehicle has been in a low-battery state for a longer period. When the low-battery ratio exceeds a certain threshold, it indicates that the battery has been in a prolonged low-battery state.

[0035] Step 102: In response to the low battery percentage after engine shutdown being greater than or equal to a preset percentage threshold, and the battery charge being less than or equal to a preset charge requirement when the vehicle is started next time, increase the battery charging voltage when the vehicle is started next time.

[0036] In practice, if the percentage of low battery charges after engine shutdown is greater than or equal to a preset threshold, it indicates that the user's driving habits likely result in the battery being in a low-charge state when the vehicle is off. As the battery depletes under static conditions, it is highly likely to become completely depleted, thus requiring recharging to prevent the battery from remaining at a low charge level for an extended period after vehicle use. However, recharging is only necessary if the actual battery charge level is determined upon the next start. If the battery charge is high, recharging is not required.

[0037] During battery charging, electrical energy is converted into chemical energy, forming material deposits at the positive and negative terminals. Due to the battery's structural characteristics, as the battery's charge increases, the voltage across the terminals also rises. The charging current is determined by the voltage difference between the charging voltage and the battery voltage, known as the charging voltage difference. Because the overall resistance of a battery is relatively small, if the charging voltage is fixed, the battery voltage will be low and the charging voltage difference will be large in the initial stages of charging. This will result in a very high charging current, potentially causing the battery to overheat or even be damaged.

[0038] Among the various factors, charging current is the most critical. The magnitude of the charging current directly determines the charging speed and efficiency of the battery. A higher charging current results in faster charging, but it can also lead to overcharging and damage. Secondly, charging voltage is also essential. During charging, the charging voltage of the charging device must be higher than the battery's discharge voltage to ensure proper current flow in the circuit. Furthermore, the charging speed is also affected by the charging voltage; a higher charging voltage allows for faster energy transfer to the electrons inside the battery, thus accelerating the charging process.

[0039] A normal charging process can be roughly divided into three stages: the constant current stage, the constant voltage stage, and the cutoff stage. The constant current stage is the initial stage of battery charging. This stage accounts for the vast majority of the charging time, generally exceeding 80% of the entire charging process. In this process, the initial charging voltage is first set based on the battery voltage. Then, the voltage is continuously adjusted as the battery voltage changes, keeping the charging voltage difference essentially constant. This ensures that charging is carried out with a relatively constant current, hence the name constant current stage. The constant current stage features a faster charging speed and a faster rate of battery capacity increase, making it the main stage of the charging process.

[0040] The constant voltage stage is the middle stage of battery charging. As the battery capacity increases, the battery voltage also rises. After reaching a certain battery voltage, if a stable charging voltage difference is maintained, it will lead to excessive charging voltage and damage the battery. Therefore, in this stage, the charging voltage is controlled to increase to a fully charged state and maintain a constant voltage, thus controlling the charging current with a reasonable voltage. This is called the constant voltage stage.

[0041] Optionally, the boundary between the constant current and constant voltage stages can be defined by setting the required power consumption. For example, if the required power consumption is 90%, constant current charging is used until the power consumption reaches 90%, and constant voltage charging is used after the power consumption reaches 90%. The required power consumption can also be set to 80% or 85%, generally within the range of 80%-90%.

[0042] The constant-voltage stage is the later stage of battery charging. The cutoff stage is actually the process of determining whether the battery is fully charged. During the final constant-voltage charging stage, the charging current continuously decreases. If left unchecked, the charging current will continue to decrease. When the current drops to a certain level, the voltage difference becomes very small. Continuing to charge further results in very slow changes in both current and voltage difference. Theoretically, it would take an infinitely long time to reach zero current, making further charging pointless. This stage, where charging is considered complete, is called the cutoff stage. Therefore, to ensure charging efficiency and reduce unnecessary waste, when the electric vehicle battery charging current drops to a certain value, the battery is considered nearly fully charged, and charging can be stopped. At this stage, parameter settings are required. By setting an appropriate charging current as the charging end indicator, a charging end command is sent to the charging equipment.

[0043] Therefore, by increasing the charging voltage to a reasonable value, the charging current can be increased by increasing the charging voltage difference, achieving faster charging than constant current charging. However, as the battery charge increases, the battery voltage gradually rises, and the charging voltage difference gradually decreases, leading to a decrease in charging current and a slower charging speed. At this point, further increasing the charging voltage will not significantly improve the charging speed. Therefore, only when the battery charge is less than or equal to the preset required charge level (e.g., 85%) when the vehicle is next started will increasing the battery charging voltage at the next start of the vehicle achieve a fast charging effect.

[0044] In summary, only when the percentage of low battery after engine shutdown is greater than or equal to the preset percentage threshold, and the battery charge at the next start of the vehicle is less than or equal to the preset required charge, can increasing the battery charging voltage at the next start of the vehicle improve charging efficiency and charging speed while avoiding battery depletion, thus achieving rapid charging and reducing energy waste.

[0045] Step 103: In response to the low battery percentage during engine shutdown being less than a preset percentage threshold, and the low battery percentage during operation meeting the preset high-voltage charging conditions, the charging voltage of the battery is increased when the vehicle is started next time.

[0046] In some embodiments, determining whether the low battery ratio meets the high-voltage charging conditions of the battery includes:

[0047] Step 1031: In response to a low battery ratio being greater than or equal to a preset ratio threshold, acquire historical driving data.

[0048] In practice, if the percentage of low battery when the engine is off is less than the preset threshold, it means that the user's driving habits will likely keep the battery in a healthy state when the vehicle is off, and the battery will not run out of power when the vehicle is stationary.

[0049] However, there's also the possibility of the battery remaining in a low-charge state for extended periods. Further analysis of the low-charge percentage is needed to determine the battery's state of charge while the vehicle is in motion. If the low-charge percentage is greater than or equal to a preset threshold, it indicates that the battery is in a low-charge state (less than or equal to 60%) for most of the vehicle's operation, which can easily reduce battery life. However, if the user drives for extended periods, the vehicle can charge the battery during driving, thus preventing it from remaining in a low-charge state for extended periods. Therefore, further analysis of the user's driving habits based on historical driving data is necessary.

[0050] Step 1032: Determine the vehicle driving parameters based on historical driving data, and determine whether the vehicle driving parameters meet the preset fast charging conditions.

[0051] In practice, vehicle driving parameters include average usage time and usage frequency. Average usage time measures whether the user has sufficient time to charge the battery while driving. A shorter average usage time indicates insufficient time to charge the battery; for example, the user might reach their destination and turn off the vehicle when the battery is only at 30% charge, interrupting the charging process and leaving the battery in a low-charge state. Usage frequency measures the user's driving habits. Low usage frequency, such as twice a day, suggests the user is likely using the vehicle primarily for commuting, with little other opportunity to charge the battery. Therefore, when both average usage time and usage frequency are low, the vehicle driving parameters meet the preset fast-charging conditions, requiring fast charging of the battery to replenish its charge.

[0052] Step 1033: In response to meeting the fast charging conditions and the battery charge being less than or equal to the preset required charge when the vehicle is started next time, determine that the low charge ratio meets the high voltage charging conditions.

[0053] In practice, when the conditions for fast charging are met, it is determined that the battery needs to be fast-charged. However, if the battery's charge level is greater than the preset demand when the vehicle is started next time, even increasing the charging voltage will not achieve fast charging, and it is determined that the battery has sufficient charge at startup, requiring no additional charging. Therefore, only when the conditions for fast charging are met, and the battery's charge level is less than or equal to the preset demand when the vehicle is started next time, can it be determined that operating at a low charge ratio satisfies the high-voltage charging conditions. Increasing the battery's charging voltage at the next startup can improve charging efficiency and speed while avoiding battery depletion, thus achieving rapid charging and reducing energy waste.

[0054] Step 1034: In response to the low battery ratio being less than a preset ratio threshold, or the battery charge being greater than the preset required charge when the vehicle is started next, determine that the low battery ratio does not meet the high voltage charging conditions.

[0055] In practice, if the low-battery ratio is less than the preset threshold, it means the battery is in a healthy state (charge greater than 60%) for most of the vehicle's operation, and high-voltage fast charging is unnecessary. If the battery charge is greater than the preset required charge when the vehicle is started next time, high-voltage charging will not have a fast charging effect, and since the charge is already high, further charging is not required. In this case, it can be determined that the low-battery ratio does not meet the conditions for high-voltage charging, and high-voltage charging is unnecessary.

[0056] In summary, the vehicle battery charging control method provided in this application embodiment can analyze the user's driving habits by acquiring historical power data and historical driving data without adding hardware structure. Based on the driving habits and battery power, it can determine whether there is a risk of battery depletion. If there is a risk of battery depletion, the charging voltage of the battery is increased when the vehicle is started next time, thereby improving the charging efficiency of the battery, avoiding over-discharge of the battery, and extending the battery's service life.

[0057] In some embodiments, such as Figure 2 As shown, the low battery percentage during vehicle operation is determined based on historical battery data, including:

[0058] Step 201: Determine the total number of battery level checks during vehicle operation based on historical battery data.

[0059] In practice, the vehicle will check the battery charge at a predetermined frequency while driving, such as once per minute. If the historical battery charge data covers 10 hours of data testing time, then the total number of battery charge checks during vehicle operation in the historical battery charge data will be 600.

[0060] Step 202: Determine the number of low battery detectors based on the total number of detectors and the preset power threshold.

[0061] In practice, if the preset power threshold is 60%, then the power levels of 600 detected power levels that are less than or equal to 60% are identified as low power levels. The number of low power detections can be determined by comparing each detected power level with the power threshold. For example, the number of low power detections can be 500, 400, 300, or 100.

[0062] Step 203: Determine the ratio of the number of low-voltage detections to the total number of detections as the low-voltage ratio.

[0063] In specific implementation, for example, if the total number of tests is 600 and the number of low-power tests is 300, then the low-power operation rate is 300 / 600 = 50%.

[0064] In some embodiments, such as Figure 3 As shown, the percentage of low battery percentage when the vehicle is turned off is determined based on historical battery data, including:

[0065] Step 301: Determine the battery's shutdown charge each time the vehicle is turned off based on historical battery data.

[0066] In practice, the shutdown charge is the amount of electricity stored when the vehicle is turned off. The size of this charge directly determines whether the battery will run out of power when the vehicle is stationary.

[0067] Step 302: Determine the total number of times the engine shuts off and the number of times the engine shuts off when the power is less than or equal to a preset power threshold.

[0068] In practice, the total number of times the vehicle was turned off is the same as the number of times the user used the vehicle. If the historical battery data covers 14 usages, then the total number of times the vehicle was turned off in the historical battery data is 14. If the preset battery threshold is 60%, then the battery level less than or equal to 60% of the battery level in the 14 instances of vehicle shutdown is defined as low battery level. The number of low battery counts can be determined by comparing each shutdown battery level with the battery threshold. For example, the number of low battery counts can be 10, 9, or 8.

[0069] Step 303: Determine the ratio of the number of low battery counts to the total number of counts as the low battery percentage of engine shutdown.

[0070] In specific implementation, for example, if the number of low battery counts is 7 and the total number of counts is 14, then the proportion of low battery shutdowns is 7 / 14 = 50%.

[0071] In some embodiments, vehicle driving parameters include average usage time and usage frequency; such as Figure 4 As shown, vehicle driving parameters are determined based on historical driving data, including:

[0072] Step 401: Determine the start time and the corresponding shutdown time for each vehicle start based on historical driving data.

[0073] In practice, the historical driving data stores the start time of each user's vehicle use and the corresponding shutdown time for the same use. The start time for the same use could be 8:30, and the shutdown time could be 9:00. Alternatively, the start time could be 18:30, and the shutdown time could be 19:00.

[0074] Step 402: Determine the average vehicle usage time based on the start-up time and shutdown time.

[0075] In some embodiments, step 402 includes:

[0076] Step 4021: Determine multiple single-use durations based on the corresponding start-up and shutdown times.

[0077] In practice, the difference between the start and stop times for a single vehicle use is the duration of that single use. For example, if the start time is 8:30 and the stop time is 9:00, the duration is 30 minutes. However, for cross-day use, such as a start time of 23:30 and a stop time of 0:30, the difference would result in a duration of -23 hours. Therefore, when the stop time is detected to be earlier than the start time, the sum of the difference between the start and stop times and 24 is determined as the duration of the single use. For example, if the start time is 23:30 and the stop time is 0:30, the duration is -23 + 24 = 1 hour.

[0078] Step 4022: Determine the statistical quantity of a single vehicle usage session, and determine the total vehicle usage time based on the statistical quantity and the single vehicle usage session duration.

[0079] In practice, each car use corresponds to a single usage duration, so the statistical count of single usage durations is the number of car uses included in the historical driving data. The sum of these statistically counted single usage durations is then determined as the total usage duration. For example, if the historical usage data includes 14 usages over 7 days a week, the total usage duration is the sum of these 14 single usage durations. The total usage duration can be 14 hours, 7 hours, 21 hours, etc.

[0080] Step 4023: Determine the average usage time as the ratio of the total usage time to the statistical number.

[0081] In practice, for example, if the total usage time is 7 hours and the number of users is 14, then the average usage time is 7 / 14 = 0.5 hours.

[0082] Step 403: Determine the total number of vehicle starts based on historical driving data.

[0083] In practice, each use of the vehicle's historical driving data will record one start, so the total number of vehicle starts is the number of times the vehicle was used in the historical driving data.

[0084] Step 404: Determine the vehicle usage frequency based on the total number of starts and the start and end dates of historical driving data.

[0085] In some embodiments, step 404 includes:

[0086] Step 4041: Determine the total number of days of vehicle use based on the start and end dates.

[0087] In practice, if the historical driving data consists of the past 7 driving records, then the total number of days of vehicle use is 7 days. The corresponding start date could be 10th of month x, 20xx, and the corresponding end date could be 17th of month x, 20xx. The difference between the start and end dates is the total number of days of vehicle use. For cases spanning months or years, the corresponding total number of days of vehicle use can be determined based on the calendar.

[0088] Step 4042: Determine the vehicle usage frequency as the ratio of the total number of starts to the total number of days of vehicle use.

[0089] In practice, if the total number of starts is 14 and the total number of days of vehicle use is 7, then the vehicle usage frequency is 14 / 7 = 2 times / day.

[0090] In some embodiments, fast charging conditions include frequency limiting conditions and duration limiting conditions; such as Figure 5 As shown, determining whether the vehicle's driving parameters meet the preset fast charging conditions includes:

[0091] Step 501: In response to the vehicle usage frequency in the vehicle driving parameters being less than or equal to a preset frequency threshold, determine that the frequency restriction condition is met.

[0092] In practice, the preset frequency threshold can be 3 times / day. The vehicle usage frequency is used to measure the user's driving habits. If the vehicle usage frequency in the vehicle driving parameters is less than or equal to the preset frequency threshold, such as 2 times / day, it means that the user is more likely to drive the vehicle for commuting and has no other opportunity to charge the battery. The battery is at risk of being depleted and needs to be recharged.

[0093] Step 502: In response to the average vehicle usage time in the vehicle driving parameters being less than or equal to a preset duration threshold, determine that the duration restriction condition is met.

[0094] In practice, the preset time threshold can be 30 minutes. Average usage time is used to measure whether the user has sufficient time to charge the battery while driving. If the average usage time in the vehicle's driving parameters is less than or equal to the preset time threshold, for example, 25 minutes, and the vehicle does not immediately begin charging after starting, it indicates that the battery's current charge level is greater than the depleted charge level (30%), and charging is unnecessary. If, after 15 minutes of driving, the battery's current charge level drops to 30%, charging begins, but only 10 minutes remain for charging. Therefore, if the average usage time in the vehicle's driving parameters is less than or equal to the preset time threshold, it indicates insufficient time to charge the battery, potentially causing the battery to remain in a low-charge state and requiring recharging.

[0095] Step 503: In response to the simultaneous satisfaction of the duration limit and frequency limit, determine that the fast charging condition is met.

[0096] In practice, when the average usage time is less than or equal to a preset duration threshold and the usage frequency is less than or equal to a preset frequency threshold, the conditions for fast charging are met, and the battery needs to be fast-charged. This is because there is neither sufficient time to charge the battery nor additional opportunities to use the vehicle to charge it. Therefore, the fast-charging mode is activated to quickly charge the battery and replenish its power.

[0097] Step 504: In response to the failure to meet the duration limit and / or frequency limit, determine that the fast charging condition is not met.

[0098] In practice, if the average usage time exceeds the preset duration threshold, it means there is enough time to charge the battery and no additional charging is needed; if the usage frequency is less than or equal to the preset frequency threshold, it means the user has additional usage time and can charge the battery during additional usage time without additional charging.

[0099] In some embodiments, such as Figure 6 As shown, increasing the battery charging voltage upon the next vehicle start includes:

[0100] Step 601: Determine the vehicle's drive mode.

[0101] In practice, different vehicle models have different power sources, and therefore different drive modes. For example, pure gasoline vehicles use a gasoline drive mode, requiring the engine to drive a generator to charge. Hybrid vehicles use a hybrid drive mode, allowing the battery to charge either directly or via the engine driving a generator to charge the battery.

[0102] Step 602: In response to the driving mode being hybrid driving mode, after detecting the vehicle start signal, determine the current charge level of the power battery.

[0103] In practice, if the drive mode is hybrid drive mode, there are two charging methods: the power battery directly charges the storage battery, and the engine drives the generator to charge the storage battery. Therefore, after detecting the vehicle start signal, the current charge level of the power battery is determined. The storage battery can only be charged when the power battery has sufficient charge; otherwise, it will affect the normal use of the vehicle.

[0104] Step 603: In response to the current power level being greater than or equal to the preset safe power level, control the power battery to increase the charging voltage of the battery from the standard voltage to the preset fast charging voltage.

[0105] In practice, the safe charge level is the minimum charge level at which the power battery can operate smoothly. If the charge level falls below this level, the power battery needs to be charged. If the current charge level is greater than or equal to the preset safe charge level, it means that the power battery has sufficient capacity to charge the storage battery. The power battery is then controlled to increase the storage battery's charging voltage from the standard voltage to a preset fast charging voltage, thereby achieving rapid charging of the storage battery. This replenishes the battery's charge, ensuring that the battery reaches a higher charge level before the vehicle is turned off. Charging at a higher fast charging voltage can continue until the battery charge reaches the required charge level or until it is fully charged.

[0106] Step 604: In response to the current battery level being less than the preset safe battery level, control the engine to drive the generator to increase the battery charging voltage from the standard voltage to the preset fast charging voltage.

[0107] In practice, if the current battery level is less than the preset safe battery level, it means that the power battery also needs to be charged. If there is not enough capacity to charge the battery, the engine needs to be controlled to drive the generator to generate electricity. At the same time, the charging voltage of the battery is increased from the standard voltage to the preset fast charging voltage to achieve fast charging of the battery. This is to replenish the battery and enable the battery to reach a higher charge level before the vehicle is turned off. The high fast charging voltage can continue until the battery level rises to the required charge level or until it is fully charged.

[0108] Step 605: In response to the driving mode being fuel drive mode, after detecting the vehicle start signal, control the engine to drive the generator to increase the battery charging voltage from the standard voltage to the preset fast charging voltage.

[0109] In practice, if the driving mode is fuel drive mode and the vehicle is determined to be a pure fuel vehicle, after detecting the vehicle start signal, it is necessary to control the engine to drive the generator to generate electricity, and increase the charging voltage of the battery from the standard voltage to the preset fast charging voltage to achieve fast charging of the battery, so as to replenish the battery and enable the battery to reach a higher charge before the vehicle is turned off. The charging with a higher fast charging voltage can continue until the battery charge rises to the required charge or until it is fully charged.

[0110] Step 606: In response to the driving mode being pure electric driving mode, after detecting the vehicle start signal, when the power battery charge is greater than or equal to the preset safe charge, control the power battery to increase the battery charging voltage from the standard voltage to the preset fast charging voltage.

[0111] In practical implementation, if the driving mode is pure electric drive mode, it means that the vehicle is a pure electric vehicle with only one power source, the power battery. Only when the power battery's charge is greater than or equal to the preset safe charge can it be said that the power battery has sufficient capacity to charge the storage battery. The power battery is controlled to increase the storage battery's charging voltage from the standard voltage to the preset fast charging voltage to achieve fast charging of the storage battery and thus replenish the storage battery's power.

[0112] It should be noted that the method in this embodiment can be executed by a single device, such as a computer or server. The method can also be applied in a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method in this embodiment, and the multiple devices will interact with each other to complete the method described.

[0113] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0114] Based on the same inventive concept, corresponding to any of the above embodiments, this application also provides a charging control device for a vehicle battery.

[0115] refer to Figure 7 The charging control device for the vehicle battery includes:

[0116] Data analysis module 10 is configured to: determine the low battery percentage when the vehicle is in motion and the low battery percentage when the vehicle is off based on historical battery data.

[0117] The engine shutdown charging module 20 is configured to: increase the charging voltage of the battery when the vehicle is started again, in response to the low battery percentage being greater than or equal to a preset percentage threshold and the battery charge being less than or equal to a preset charge requirement when the vehicle is started again.

[0118] The battery charging module 30 is configured to increase the battery charging voltage when the vehicle is started again, in response to the low battery percentage after engine shutdown being less than a preset percentage threshold and the low battery percentage meeting preset high-voltage charging conditions.

[0119] For ease of description, the above devices are described in terms of function, divided into various modules. Of course, in implementing this application, the functions of each module can be implemented in one or more software and / or hardware.

[0120] The apparatus described above is used to implement the charging control method for the corresponding vehicle battery in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0121] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the charging control method for a vehicle battery as described in any of the above embodiments.

[0122] Figure 8 This embodiment illustrates a more specific hardware structure of an electronic device, which may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0123] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0124] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0125] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0126] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0127] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0128] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0129] The electronic devices described above are used to implement the charging control method for the corresponding vehicle battery in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0130] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the charging control method for a vehicle battery as described in any of the above embodiments.

[0131] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0132] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the vehicle battery charging control method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0133] It is understood that before using the technical solutions of the various embodiments in this disclosure, users will be informed of the type, scope of use, and usage scenarios of the personal information involved in an appropriate manner, and user authorization will be obtained.

[0134] For example, upon receiving a user's active request, a prompt message is sent to the user to explicitly inform them that the requested operation will require the acquisition and use of the user's personal information. This allows the user to independently choose, based on the prompt message, whether to provide personal information to the software or hardware such as electronic devices, applications, servers, or storage media performing the operations of this disclosed technical solution.

[0135] As an optional but not limited implementation, in response to a user's active request, sending a prompt message to the user can be done via a pop-up window, where the prompt message can be presented in text format. Furthermore, the pop-up window can also include a selection control allowing the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0136] It is understood that the above notification and user authorization process are merely illustrative and do not constitute a limitation on the implementation of this disclosure. Other methods that comply with relevant laws and regulations may also be applied to the implementation of this disclosure.

[0137] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in the details for the sake of brevity.

[0138] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0139] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0140] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A charging control method for a vehicle battery, characterized in that, include: Determine the percentage of low battery when the vehicle is in motion and the percentage of low battery when the vehicle is off based on historical power data. In response to the low battery percentage after engine shutdown being greater than or equal to a preset percentage threshold, and the battery charge being less than or equal to a preset required charge when the vehicle is started next time, the charging voltage of the battery is increased when the vehicle is started next time. In response to the low battery percentage during engine shutdown being less than a preset percentage threshold, and the low battery percentage during operation meeting preset high-voltage charging conditions, the charging voltage of the battery is increased when the vehicle is started next time.

2. The method according to claim 1, characterized in that, Determining whether the low battery ratio meets the high-voltage charging conditions of the battery includes: In response to the low battery ratio being greater than or equal to a preset ratio threshold, historical driving data is acquired. The vehicle driving parameters are determined based on the historical driving data, and it is determined whether the vehicle driving parameters meet the preset fast charging conditions. In response to the fast charging condition being met, and the battery charge being less than or equal to the preset required charge when the vehicle is started next time, it is determined that the low charge ratio meets the high voltage charging condition. In response to the low battery ratio being less than a preset ratio threshold, or the battery charge being greater than a preset required charge when the vehicle is started next time, it is determined that the low battery ratio does not meet the high-voltage charging conditions.

3. The method according to claim 1, characterized in that, The process of determining the low battery percentage of a vehicle during operation based on historical battery data includes: The total number of battery level detections during vehicle operation is determined based on the historical battery data. The number of low battery detectors is determined based on the total number of detectors and the preset power threshold. The ratio of the number of low-power detections to the total number of detections is determined as the low-power operation ratio.

4. The method according to claim 1, characterized in that, The process of determining the percentage of low battery charge when the vehicle is turned off based on historical battery data includes: The battery's shutdown charge is determined each time the vehicle is turned off based on the historical power data. Determine the total number of times the power outage occurs and the number of times the power outage occurs when the power outage is less than or equal to a preset power threshold. The ratio of the number of low-power statistics to the total number of statistics is determined as the low-power shutdown percentage.

5. The method according to claim 2, characterized in that, The vehicle driving parameters include average usage time and usage frequency; determining the vehicle driving parameters based on the historical driving data includes: The start time and the corresponding shutdown time of the vehicle are determined based on the historical driving data. The average vehicle usage time is determined based on the start-up time and the shutdown time. The total number of vehicle starts is determined based on the historical driving data. The vehicle usage frequency is determined based on the total number of starts and the start and end dates of the historical driving data.

6. The method according to claim 2, characterized in that, The fast charging conditions include frequency limiting conditions and duration limiting conditions; determining whether the vehicle driving parameters meet the preset fast charging conditions includes: In response to the vehicle usage frequency in the vehicle driving parameters being less than or equal to a preset frequency threshold, it is determined that the frequency restriction condition is met; In response to the fact that the average vehicle usage time in the vehicle driving parameters is less than or equal to a preset time threshold, it is determined that the time limit condition is met; In response to simultaneously satisfying the duration limit and the frequency limit, it is determined that the fast charging condition is satisfied; In response to the failure to meet the duration limit and / or the frequency limit, it is determined that the fast charging condition is not met.

7. The method according to claim 5, characterized in that, The step of determining the average vehicle usage time based on the start-up time and the shutdown time includes: Multiple single vehicle usage durations are determined based on the corresponding start-up time and shutdown time; Determine the statistical quantity of a single vehicle usage session, and determine the total vehicle usage time based on the statistical quantity and the single vehicle usage session duration; The ratio of the total usage time to the statistical number is determined as the average usage time.

8. The method according to claim 5, characterized in that, The method of determining vehicle usage frequency based on the total number of starts and the start and end dates of the historical driving data includes: The total number of days of vehicle use is determined based on the aforementioned start and end dates; The ratio of the total number of starts to the total number of days of vehicle use is determined as the vehicle usage frequency.

9. The method according to claim 1, characterized in that, The step of increasing the charging voltage of the battery upon the next start of the vehicle includes: Determine the vehicle's drive mode; In response to the driving mode being a hybrid driving mode, the current charge level of the power battery is determined after detecting a vehicle start signal; In response to the current power level being greater than or equal to a preset safe power level, the power battery is controlled to increase the charging voltage of the storage battery from the standard voltage to a preset fast charging voltage; In response to the current battery level being less than a preset safe battery level, the engine is controlled to drive the generator to increase the battery charging voltage from the standard voltage to a preset fast charging voltage. In response to the driving mode being a fuel drive mode, after detecting a vehicle start signal, the engine is controlled to drive the generator to increase the charging voltage of the battery from the standard voltage to a preset fast charging voltage. In response to the driving mode being pure electric driving mode, after detecting a vehicle start signal, when the power battery charge is greater than or equal to a preset safe charge, the power battery is controlled to increase the charging voltage of the battery from the standard voltage to a preset fast charging voltage.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method as described in any one of claims 1 to 9.

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