Charging control method and device, vehicle and storage medium

Abstract

The invention relates to the technical field of vehicle control, and provides a charging control method and device, a vehicle and a storage medium. The method comprises the following steps: acquiring a target energy recovery strategy of a vehicle under the condition that the vehicle is charged; a vehicle charging threshold request is generated according to the target energy recovery strategy, the vehicle charging threshold request is sent to the user, and the vehicle charging threshold request comprises an initial charging threshold of the vehicle; a target charging threshold value of the vehicle is determined according to a response message returned by a user for the initial charging threshold value, charging control is conducted on the vehicle according to the target charging threshold value, so that charging is stopped after a power battery of the vehicle is charged to the target charging threshold value, and the target charging threshold value is lower than the capacity upper limit of the vehicle battery. When the vehicle is charged, the energy recovery requirement in the follow-up running process is considered, and the problem that energy cannot be recovered due to overcharge of the battery is solved.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a charging control method, device, vehicle and storage medium. Background Art

[0002] With the development of new energy vehicles, more and more people are choosing new energy vehicles. In order to ensure the vehicle's endurance, new energy vehicles on the market basically perform energy recovery. However, when the power battery is fully charged, in order to avoid overcharging the power battery, the vehicle will be prohibited from performing energy recovery, resulting in the vehicle being unable to brake through energy recovery, resulting in inconsistent driving experience before and after. Summary of the invention

[0003] In view of this, the embodiments of the present application provide a charging control method, device, vehicle and storage medium to solve the problem in the prior art that when charging a vehicle, energy recovery during driving is not taken into consideration, resulting in an inability to recover energy while the vehicle is driving, and inconsistent driving experience before and after.

[0004] In a first aspect of an embodiment of the present application, a charging control method is provided, the method comprising: when the vehicle is being charged, obtaining a target energy recovery strategy for the vehicle; generating a vehicle charging threshold request according to the target energy recovery strategy, and sending the vehicle charging threshold request to a user, the vehicle charging threshold request including an initial charging threshold for the vehicle; determining the target charging threshold for the vehicle according to a response message returned by the user for the initial charging threshold, and controlling charging of the vehicle according to the target charging threshold.

[0005] According to a second aspect of an embodiment of the present application, a charging control device is provided, which includes: an acquisition module for acquiring a target energy recovery strategy of the vehicle when the vehicle is charging; a generation module for generating a vehicle charging threshold request according to the target energy recovery strategy, and sending the vehicle charging threshold request to a user, wherein the vehicle charging threshold request includes an initial charging threshold of the vehicle; a control module for determining the target charging threshold of the vehicle according to a response message returned by the user for the initial charging threshold, and controlling the charging of the vehicle according to the target charging threshold.

[0006] According to a third aspect of an embodiment of the present application, a vehicle is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0007] According to a fourth aspect of an embodiment of the present application, a computer-readable storage medium is provided, which stores a computer program, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0008] Compared with the prior art, the embodiments of the present application have the following beneficial effects: the method in the embodiments of the present application obtains the target energy recovery strategy of the vehicle when the vehicle is being charged; generates a vehicle charging threshold request according to the target energy recovery strategy, and sends the vehicle charging threshold request to the user, wherein the vehicle charging threshold request includes the initial charging threshold of the vehicle; determines the target charging threshold of the vehicle according to the response message returned by the user for the initial charging threshold, and controls the charging of the vehicle according to the target charging threshold, so that the power battery of the vehicle stops charging after charging to the target charging threshold, wherein the above-mentioned target charging threshold is lower than the upper capacity limit of the vehicle battery, and the vehicle considers the energy recovery demand in subsequent driving when charging, thereby avoiding the problem of being unable to recover energy due to overcharging of the battery. This not only reduces the risk of thermal runaway that may be caused by overcharging of the battery, but also optimizes the utilization of kinetic energy converted into electrical energy during braking. Since kinetic energy recovery can play a certain braking effect, the present method also reduces the excessive use and potential wear of the braking system, further improves the safety and durability of the vehicle, and avoids the problem in the related art that the vehicle fails to consider the energy recovery during driving when charging, resulting in the inability to recover energy during driving, and there is an inconsistent driving experience before and after. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1 It is a flow chart of a charging control method provided in an embodiment of the present application;

[0011] Figure 2 is a flow chart of another charging control method provided in an embodiment of the present application;

[0012] Figure 3 is a flow chart of another charging control method provided in an embodiment of the present application;

[0013] Figure 4 It is a flowchart of another charging control method provided in an embodiment of the present application;

[0014] Figure 5 It is a flow chart of another charging control method provided in an embodiment of the present application;

[0015] Figure 6 is a flow chart of another optional charging control method provided in an embodiment of the present application;

[0016] Figure 7 is a flow chart of another optional charging control method provided in an embodiment of the present application;

[0017] Figure 8 It is a flowchart of another optional charging control method provided in an embodiment of the present application;

[0018] Fig. 9 is a structural schematic diagram of a charging control device provided in an embodiment of the present application;

[0019] Fig.10 It is a structural schematic diagram of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0021] A charging control method and device according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0022] Figure 1 A charging control method provided in an embodiment of the present application is as follows: Figure 1 As shown, the method includes:

[0023] S101, when the vehicle is being charged, obtaining a target energy recovery strategy for the vehicle;

[0024] S102, generating a vehicle charging threshold request according to a target energy recovery strategy, and sending the vehicle charging threshold request to a user, where the vehicle charging threshold request includes an initial charging threshold of the vehicle;

[0025] S103: Determine a target charging threshold of the vehicle according to a response message returned by the user in response to the initial charging threshold, and control charging of the vehicle according to the target charging threshold.

[0026] It can be understood that the charging control method provided in this example is applied to a vehicle, which is provided with a battery that can drive the vehicle to travel. The above-mentioned vehicles include vehicles with automatic driving or intelligent driving (including vehicles with manned functions (such as cars, buses, large buses, minibuses, etc.), vehicles with cargo functions (such as ordinary trucks, vans, trailers, closed trucks, tank trucks, flatbed trucks, container trucks, dump trucks, trucks with special structures), special vehicles (such as logistics distribution vehicles, automatic guided transport vehicles AGV, patrol cars, cranes, cranes, excavators, bulldozers, forklifts, rollers, loaders, off-road engineering vehicles, armored engineering vehicles, sewage treatment vehicles, sanitation vehicles, vacuum trucks, floor washing vehicles, sprinkler trucks, sweeping robots, food delivery robots, shopping guide robots, lawn mowers, golf carts, etc.), vehicles with entertainment functions (such as entertainment vehicles, amusement park automatic driving devices, balance cars, etc.), rescue vehicles (such as fire trucks, ambulances, power repair vehicles, engineering rescue vehicles, etc.)), etc.

[0027] Specifically, the situation in which the vehicle is charged refers to the situation in which the vehicle is connected to a charging pile (a DC charging pile and / or an AC charging pile) and the battery is charged through the charging pile; the situation in which the battery is replenished through a range extender and / or kinetic energy recovery during the driving process of the vehicle does not belong to the above-mentioned situation in which the vehicle is charged.

[0028] It can be understood that the above-mentioned vehicle is provided with a regenerative braking system (RBS), which converts kinetic energy into electrical energy and stores it in the battery when the vehicle is decelerating or braking, and then supplies energy to the motor when needed. This method reduces the phenomenon of traditional braking systems converting kinetic energy into heat energy and wastes it, and improves the overall energy efficiency of the vehicle; the energy recovery system has at least two energy recovery strategies, and different energy recovery strategies correspond to different energy recovery intensities. Exemplarily, taking the energy recovery intensity including: high energy recovery intensity and low recovery intensity as an example, under high energy recovery intensity, the vehicle decelerates significantly, and the driver will feel a strong braking feeling. There is no need to brake frequently, and the system can achieve a large degree of kinetic energy recovery through the reverse power generation of the motor; under low recovery intensity, the vehicle deceleration process is relatively smooth, and will not excessively interfere with the driving experience. At the same time, the braking intervention of the vehicle can be reduced under the condition of moderate energy recovery.

[0029] Continuing with the above example, when the vehicle is charging, the vehicle will obtain its own target energy recovery strategy, which refers to the energy recovery strategy adopted by the vehicle during driving.

[0030] It can be understood that different energy recovery strategies correspond to different charging thresholds, and the charging threshold corresponding to the energy recovery strategy is lower than 100%; this example will determine the initial charging threshold based on the energy recovery strategy. Since the charging threshold corresponding to the energy recovery strategy is lower than 100%, the determined initial charging threshold must be lower than 100%, and a vehicle charging threshold request is generated based on the initial charging threshold (therefore, the vehicle charging threshold request includes the initial charging threshold).

[0031] In some examples, this example sends a vehicle charging threshold request to the user, then receives a response message returned by the user regarding the initial charging threshold in the above vehicle charging threshold request, and determines the target charging threshold based on the response information; specifically, after the user receives the vehicle charging threshold request, if the user agrees to the above initial charging threshold, a response message indicating agreement is returned to the vehicle, and after the vehicle receives the response message indicating agreement, the initial charging threshold is used as the target charging threshold, and the vehicle is charged according to the target charging threshold; after the user receives the vehicle charging threshold request, if the user disagrees with the above initial charging threshold or needs to set the target charging threshold by himself, a response message carrying the target charging threshold set by himself is returned to the vehicle, and after the vehicle receives the response message carrying the target charging threshold, the vehicle is charged according to the target charging threshold.

[0032] It can be understood that after the battery reaches the target charging threshold, the allowable charging power of the battery will be higher than the preset charging power threshold, thereby enabling the vehicle to recover energy and charge the battery.

[0033] In order to better understand the above method, this embodiment provides a more specific example for illustration. It can be understood that if the coasting recovery function of a new energy vehicle is turned on, there will be a strong sense of deceleration when coasting, and when judging the safe distance from the vehicle in front, it will be shorter than when coasting without energy. However, when the power battery is fully charged, in order to avoid overcharging, the coasting energy recovery function will be prohibited, resulting in a longer coasting distance of the vehicle, which will cause certain safety risks and lead to a worse braking effect. When the power battery power is too high, the chassis system will sometimes be asked to replenish fluid, and the deceleration effect during coasting energy recovery will be achieved through braking, resulting in energy loss, and also causing certain losses to the braking system. This example will determine a target charging threshold value lower than the battery capacity, so that the vehicle is charged according to the target charging threshold value, and the charging power of the vehicle is controlled by the above target charging threshold value to ensure that the vehicle can also recover energy after charging is completed.

[0034] In this example, the vehicle is equipped with a battery management system (BMS), a vehicle controller, and a remote communication terminal (Telematics Box, TOBX). The vehicle can communicate with the cloud (Telematics Service Provider, TSP) through the remote communication terminal, and the cloud can communicate with the user's terminal (for example, a mobile phone).

[0035] Among them, the vehicle controller can determine whether the vehicle's energy recovery system is turned on. When it is turned on, when the vehicle controller detects that the charging state of the power battery fed back by the battery management system is charging (when charging at a charging pile), the vehicle controller will generate a vehicle charging threshold request according to the target energy recovery strategy, and send the vehicle charging threshold request to TBOX. TBOX sends the vehicle charging threshold request to the cloud, and the cloud sends the vehicle charging threshold request to the terminal. The terminal displays the vehicle charging threshold request to the user through an APP or the like. The user can choose to use the initial charging threshold as the target charging threshold, or choose to set the target charging threshold by himself (the upper limit of the target charging threshold is lower than 100%, so that the maximum power of the vehicle after charging is lower than 100%, and energy recovery can be performed). The terminal returns the response information determined by the user to the cloud, and the cloud returns the response information to TOX. TOX returns the response information to the vehicle controller, and the vehicle controller returns the response information to BMS. Subsequently, BMS controls the charging of the vehicle according to the target charging threshold in the response information, that is, when the SOC of the power battery of the vehicle reaches the target charging threshold, charging is stopped, thereby achieving the effect of retaining part of the battery capacity, so that the vehicle can meet the energy recovery requirements.

[0036] It is understandable that, since the power battery has a certain charging capacity after the SOC is lower than 100%, the timing of energy recovery can be greatly improved through this judgment condition.

[0037] According to the technical solution provided by the embodiment of the present application, when the vehicle is being charged, the target energy recovery strategy of the vehicle is obtained; a vehicle charging threshold request is generated according to the target energy recovery strategy, and the vehicle charging threshold request is sent to the user, wherein the vehicle charging threshold request includes the initial charging threshold of the vehicle; according to the response message returned by the user for the initial charging threshold, the target charging threshold of the vehicle is determined, and the charging of the vehicle is controlled according to the target charging threshold, so that the power battery of the vehicle is charged to the target charging threshold and then stops charging, wherein the above-mentioned target charging threshold is lower than the upper capacity limit of the vehicle battery, and the vehicle considers the energy recovery demand in the subsequent driving when charging, and avoids the problem of energy recovery failure due to battery overcharging. This not only reduces the risk of thermal runaway that may be caused by overcharging of the battery, but also optimizes the utilization of kinetic energy converted into electrical energy during braking. Since kinetic energy recovery can play a certain braking effect, the method also reduces the excessive use and potential wear of the braking system, further improves the safety and durability of the vehicle, and avoids the problem in the related art that the vehicle fails to consider energy recovery during driving when charging, resulting in the inability to recover energy during driving, and there is an inconsistent driving experience before and after.

[0038] In some embodiments, Figure 3 As shown, a vehicle charging threshold request is generated according to the energy recovery strategy, including:

[0039] S301, obtaining a correspondence between a preset energy recovery strategy and a charging threshold;

[0040] S302, searching for a correspondence between a preset energy recovery strategy and a charging threshold according to a target energy recovery strategy, and obtaining a first charging threshold corresponding to the target energy recovery strategy;

[0041] S303: Determine an initial charging threshold according to the first charging threshold corresponding to the target energy recovery strategy obtained by searching, and generate a vehicle charging threshold request according to the initial charging threshold.

[0042] It can be understood that different energy recovery strategies correspond to different charging thresholds, and relevant technical personnel have pre-set the correspondence between energy recovery strategies and charging thresholds; illustratively, if the energy recovery strategy is high energy recovery intensity, the corresponding charging threshold is 98%; if the energy recovery strategy is low energy recovery intensity, the corresponding charging threshold is 99%.

[0043] In some examples, this example searches for the correspondence between the above-mentioned preset energy recovery strategy and the charging threshold according to the target energy recovery strategy to obtain the first charging threshold corresponding to the target energy recovery strategy.

[0044] In some examples, this example determines an initial charging threshold based on the first charging threshold corresponding to the target energy recovery strategy obtained by searching, and generates a vehicle charging threshold request based on the initial charging threshold; illustratively, the first charging threshold is directly used as the initial charging threshold, and the vehicle charging threshold request is generated.

[0045] According to the technical solution provided in the embodiment of the present application, the correspondence between the pre-set energy recovery strategy and the charging threshold is obtained; the correspondence between the pre-set energy recovery strategy and the charging threshold is searched according to the target energy recovery strategy, and the first charging threshold corresponding to the target energy recovery strategy is obtained; according to the first charging threshold corresponding to the target energy recovery strategy obtained by the search, a vehicle charging threshold request is generated. The method determines the first charging threshold through the target energy recovery strategy used by the vehicle, so that the first charging threshold can match the target energy recovery strategy, thereby improving the matching degree between the initial charging threshold subsequently determined based on the first charging threshold and the target energy recovery strategy, so that the vehicle can accurately reserve battery space based on the target energy recovery strategy when charging.

[0046] In some embodiments, Figure 4 As shown, according to the first charging threshold corresponding to the target energy recovery strategy obtained by searching, determining the initial charging threshold includes:

[0047] S401, obtaining a control mode of a vehicle, and determining a second charging threshold according to the control mode of the vehicle;

[0048] S402 , determining a lowest charging threshold from the first charging threshold and the second charging threshold, and using the lowest charging threshold as an initial charging threshold.

[0049] Specifically, the vehicle's control mode will also affect the vehicle's energy recovery. For example, if the vehicle's control mode is single-pedal mode, and the single-pedal mode enters energy recovery when the pedal is released, if the vehicle's battery is at a high SOC, the single-pedal mode may not be started due to the vehicle's battery power being too high.

[0050] In order to enable the vehicle to start the corresponding control mode normally, this example will obtain the vehicle's control mode, which is the control mode used when the vehicle is driving, and then determine the corresponding second charging threshold based on the control mode; it can be understood that the second charging threshold corresponding to the control mode is flexibly set by relevant personnel according to actual needs.

[0051] After determining the second charging threshold, in order to make the determined initial charging threshold meet the vehicle's control mode and target energy recovery strategy at the same time, this example will compare the first charging threshold with the second charging threshold to determine the minimum charging threshold, and use the minimum charging threshold as the above-mentioned initial charging threshold.

[0052] According to the technical solution provided in the embodiment of the present application, the control mode of the vehicle is obtained, and the second charging threshold is determined according to the control mode of the vehicle; the lowest charging threshold is determined from the first charging threshold and the second charging threshold, and the lowest charging threshold is used as the initial charging threshold, so that the determined initial charging threshold can meet both the control mode and the target energy recovery strategy.

[0053] In some embodiments, Figure 5 As shown, the vehicle is charged and controlled according to the target charging threshold, including:

[0054] S501, obtaining the ambient temperature of the vehicle's current environment, and comparing the ambient temperature with a preset temperature threshold;

[0055] S502: If the ambient temperature is higher than the temperature threshold, the vehicle is charged according to the target charging threshold.

[0056] It is understandable that when the vehicle battery is under low temperature conditions, the internal resistance of the lithium-ion battery increases significantly, the chemical reaction rate inside the battery slows down, the migration speed of ions in the electrolyte also slows down, and the flow of electrons and ions becomes difficult. If energy recovery is performed at this time, charging the battery may cause lithium metal deposition in the battery, that is, lithium ions cannot be normally embedded in the graphite negative electrode, but are deposited on the surface of the negative electrode to form lithium metal dendrites. These dendrites not only reduce the capacity of the battery, but may also puncture the diaphragm, causing the battery to short-circuit, and even cause thermal runaway.

[0057] When the vehicle is connected to the charging pile and the battery is being charged, the vehicle will perform thermal management on the battery to prevent the battery temperature from being too low (or too high) and being unable to charge. Then, when the power battery is fully charged and has been standing for a period of time, the power battery temperature gradually approaches the ambient temperature. When the ambient temperature is too low, the power battery temperature will also be too low. Based on the above analysis, when the power battery temperature is too low, the vehicle will be prohibited from performing energy recovery in order to avoid damage to the power battery.

[0058] In summary, if the ambient temperature is too low, the vehicle will be prohibited from performing energy recovery. At this time, there is no need to reserve battery capacity for energy recovery, so the battery can be directly fully charged; if the ambient temperature is not too low, the vehicle's charging will be controlled according to the target charging threshold to achieve the effect of reserving battery capacity for energy recovery.

[0059] Specifically, this example obtains the ambient temperature of the vehicle's current environment, and compares the ambient temperature with a pre-set temperature threshold. If the ambient temperature is higher than the temperature threshold, it indicates that when the vehicle's battery temperature approaches the ambient temperature, energy recovery will not cause damage to the battery. In this case, the vehicle's charging is controlled according to the target charging threshold to achieve the effect of reserving battery capacity for energy recovery. If the ambient temperature is not higher than the temperature threshold, it indicates that when the vehicle's battery temperature approaches the ambient temperature, energy recovery will cause damage to the battery. In this case, the battery can be directly charged without reserving battery capacity for energy recovery.

[0060] It can be understood that the above-mentioned temperature threshold is a value set by relevant personnel according to the actual type of battery; illustratively, the value range of the above-mentioned temperature threshold is: -20° to -5°, preferably, the temperature threshold is -10°.

[0061] According to the technical solution provided in the embodiment of the present application, the ambient temperature of the vehicle's current environment is obtained, and the ambient temperature is compared with a pre-set temperature threshold; if the ambient temperature is higher than the temperature threshold, the vehicle is charged according to the target charging threshold; if the ambient temperature is higher than the temperature threshold, it indicates that when the battery temperature of the vehicle approaches the ambient temperature, energy recovery will not cause damage to the battery, and the vehicle is charged according to the target charging threshold, thereby achieving the effect of reserving battery capacity for energy recovery, thereby improving the user's driving experience.

[0062] In some embodiments, Figure 6 As shown, the vehicle is charged and controlled according to the target charging threshold, including:

[0063] S601, obtaining the recycling charging quantity of the vehicle, where the recycling charging quantity is used to represent the number of times the vehicle is not fully charged in the current cycle;

[0064] S602: If the recycling charging quantity is lower than a preset cycle threshold, the vehicle is charged according to a target charging threshold.

[0065] Specifically, in order to avoid the problem of inaccurate SOC display of the battery on the vehicle, after the battery (lithium iron phosphate battery) has been charged multiple times, it is necessary to verify the SOC value by full charging. Therefore, this example will obtain the number of recycling charges of the vehicle, which is used to characterize the number of charges that the vehicle has not been fully charged in the current cycle, which is the period from the last full charge of the vehicle to the next full charge.

[0066] It can be understood that if the number of recycled charges is lower than the preset cycle threshold, it means that the vehicle's battery does not need to be calibrated, and the vehicle's charging can be controlled according to the target charging threshold; if the number of recycled charges is higher than or equal to the preset cycle threshold, it means that the vehicle's battery has not been calibrated for a long time and there may be a charge error, so calibration is required, and the battery needs to be fully charged.

[0067] It can be understood that when the battery charging status of the vehicle is finished, the vehicle will obtain the battery SOC at this time. If the battery SOC is not 100% at this time, the number of recovery charges in this cycle will be increased by 1, and the recovery charge number will be stored in the memory (EEPROM); when the vehicle is charged next time, the cumulative count value in the EEPROM is read. If the battery SOC is 100% at the end of this charging, the recovery charge number will be cleared. If it is not 100%, the cumulative count will be counted again.

[0068] It can be understood that the above cycle threshold is a value set by relevant personnel according to the actual situation of the battery, and preferably, the cycle threshold is 20. In some examples, this example will first obtain the number of recycled charging of the vehicle, and if the recycled charging number is lower than the preset cycle threshold, the vehicle charging threshold request will not be sent to the user, and full charging can be performed directly.

[0069] According to the technical solution provided in the embodiment of the present application, the number of recycling charges of the vehicle is obtained, and the recycling charge number is used to characterize the number of times the vehicle is not fully charged in the current cycle; if the recycling charge number is lower than a preset cycle threshold, the charging of the vehicle is controlled according to the target charging threshold, thereby realizing the battery charge correction, avoiding the problem that the vehicle is not fully charged for a long time and the SOC cannot be accurately obtained due to the vehicle being charged according to the determined target charging threshold all the time.

[0070] In some embodiments, Figure 7 As shown, after the vehicle is charged and controlled according to the target charging threshold, the method further includes:

[0071] S701, matching the target charging threshold with the target energy recovery strategy to obtain a matching result;

[0072] S702: If the matching result indicates that the target energy recovery strategy fails to match the target charging threshold, adjust the target energy recovery strategy according to the target charging threshold.

[0073] Specifically, since the above-mentioned target charging threshold may be a value set by the user, the target charging threshold may not match the target energy recovery strategy; illustratively, when the energy recovery strategy is high energy recovery intensity, the corresponding charging threshold is 98%; when the energy recovery strategy is low energy recovery intensity, the corresponding charging threshold is 99%; if the target energy recovery strategy is high energy recovery intensity, and the determined target charging threshold is 99%, since the target charging threshold 99% is greater than the first charging threshold 98% corresponding to the target energy recovery strategy, after the vehicle is charged, since the vehicle's SOC reaches 99%, the vehicle cannot recover energy according to the target energy recovery strategy, affecting the driving experience, so it is necessary to adjust the target energy recovery strategy so that the vehicle can recover energy according to the target energy recovery strategy.

[0074] This example matches the target charging threshold with the target energy recovery strategy to obtain a matching result; specifically, the target charging threshold is matched with the first charging threshold corresponding to the target energy recovery strategy. If the target charging threshold is greater than the first charging threshold, it is determined that the target energy recovery strategy fails to match the target charging threshold; if the target charging threshold is matched with the first charging threshold corresponding to the target energy recovery strategy, if the target charging threshold is ≤ the first charging threshold, it is determined that the target energy recovery strategy successfully matches the target charging threshold.

[0075] Continuing with the above example, in the event that the target energy recovery strategy fails to match the target charging threshold, the target energy recovery strategy is adjusted according to the target charging threshold so that the first charging threshold corresponding to the adjusted target energy recovery strategy matches the target charging threshold; illustratively, if the target energy recovery strategy is a high energy recovery intensity, and the determined target charging threshold is 99%, since the target charging threshold 99% is greater than the first charging threshold 98% corresponding to the target energy recovery strategy, the target energy recovery strategy fails to match the target charging threshold, and the target energy recovery strategy is adjusted to a low energy recovery intensity.

[0076] According to the technical solution provided in the embodiment of the present application, the target charging threshold is matched with the target energy recovery strategy to obtain a matching result; if the matching result indicates that the target energy recovery strategy fails to match the target charging threshold, the target energy recovery strategy is adjusted according to the target charging threshold, so that the vehicle can recover energy according to the adjusted target energy recovery strategy, thereby avoiding the problem that the vehicle cannot recover energy according to the target energy recovery strategy after the SOC of the vehicle reaches the target charging threshold.

[0077] In some embodiments, Figure 8 As shown, the method also includes:

[0078] S801, monitoring the battery health status of the vehicle during the process of controlling the charging of the vehicle according to the target charging threshold;

[0079] S802: If the battery health status of the vehicle indicates that there is an abnormality in the battery of the vehicle, charging of the vehicle is stopped and an abnormality reminder is issued.

[0080] In some examples, in order to avoid safety accidents caused by battery abnormalities, this example also monitors the battery health of the vehicle while controlling the charging of the vehicle according to the target charging threshold.

[0081] If the battery health status of the vehicle indicates that there is an abnormality in the battery of the vehicle, charging of the vehicle is stopped and an abnormality reminder is issued. The abnormality reminder can also be pushed to the terminal so that the user can obtain the abnormal information in time and check and repair the vehicle.

[0082] If the vehicle's battery health status indicates that there is no abnormality in the vehicle's battery, the charging action is maintained.

[0083] According to the technical solution provided in the embodiment of the present application, during the process of controlling the charging of the vehicle according to the target charging threshold, the battery health status of the vehicle is monitored; if the battery health status of the vehicle indicates that there is an abnormality in the battery of the vehicle, charging of the vehicle is stopped and an abnormality reminder is issued, so that the user can be informed of the abnormality of the vehicle in time, thereby improving the safety of the vehicle.

[0084] All the above optional technical solutions can be arbitrarily combined to form optional embodiments of the present application, which will not be described one by one here.

[0085] The following is an embodiment of the device of the present application, which can be used to execute the embodiment of the method of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the method of the present application.

[0086] This embodiment also provides a charging control device, such as Fig. 9 As shown, the device comprises:

[0087] An acquisition module 901 is used to acquire a target energy recovery strategy of the vehicle when the vehicle is being charged;

[0088] A generating module 902 is used to generate a vehicle charging threshold request according to a target energy recovery strategy, and send the vehicle charging threshold request to a user, wherein the vehicle charging threshold request includes an initial charging threshold of the vehicle;

[0089] The control module 903 is used to determine the target charging threshold of the vehicle according to the response message returned by the user to the initial charging threshold, and to control the charging of the vehicle according to the target charging threshold.

[0090] In some examples, the generation module 902 is also used to obtain the correspondence between a pre-set energy recovery strategy and a charging threshold; search for the correspondence between a pre-set energy recovery strategy and a charging threshold according to a target energy recovery strategy to obtain a first charging threshold corresponding to the target energy recovery strategy; determine an initial charging threshold based on the first charging threshold corresponding to the target energy recovery strategy obtained, and generate a vehicle charging threshold request based on the initial charging threshold.

[0091] In some examples, the generation module 902 is also used to obtain a control mode of the vehicle, determine a second charging threshold based on the control mode of the vehicle, determine a minimum charging threshold from the first charging threshold and the second charging threshold, and use the minimum charging threshold as the initial charging threshold.

[0092] In some examples, the control module 903 is also used to obtain the ambient temperature of the vehicle's current environment and compare the ambient temperature with a preset temperature threshold; if the ambient temperature is higher than the temperature threshold, the vehicle is charged according to the target charging threshold.

[0093] In some examples, the control module 903 is also used to obtain the number of recharges of the vehicle, which is used to characterize the number of times the vehicle is not fully charged in the current cycle; if the number of recharges is lower than a preset cycle threshold, the vehicle is charged according to the target charging threshold.

[0094] In some examples, the control module 903 is also used to match the target charging threshold with the target energy recovery strategy to obtain a matching result; if the matching result indicates that the target energy recovery strategy fails to match the target charging threshold, the target energy recovery strategy is adjusted according to the target charging threshold.

[0095] In some examples, the control module 903 is also used to monitor the battery health of the vehicle during the process of controlling the charging of the vehicle according to the target charging threshold; if the battery health of the vehicle indicates that there is an abnormality in the battery of the vehicle, charging of the vehicle is stopped and an abnormality reminder is issued.

[0096] According to the technical solution provided by the embodiment of the present application, the charging control device provided by the embodiment obtains the target energy recovery strategy of the vehicle when the vehicle is being charged; generates a vehicle charging threshold request according to the target energy recovery strategy, and sends the vehicle charging threshold request to the user, wherein the vehicle charging threshold request includes the initial charging threshold of the vehicle; determines the target charging threshold of the vehicle according to the response message returned by the user for the initial charging threshold, and controls the charging of the vehicle according to the target charging threshold, so that the power battery of the vehicle stops charging after charging to the target charging threshold, wherein the above-mentioned target charging threshold is lower than the upper capacity limit of the vehicle battery, and the vehicle considers the energy recovery demand in the subsequent driving when charging, avoiding the problem of energy recovery failure due to battery overcharging. This not only reduces the risk of thermal runaway that may be caused by overcharging of the battery, but also optimizes the utilization of kinetic energy converted into electrical energy during braking. Since kinetic energy recovery can play a certain braking effect, the method also reduces the excessive use and potential wear of the braking system, further improves the safety and durability of the vehicle, and avoids the problem in the related art that the vehicle fails to consider energy recovery during driving when charging, resulting in the inability to recover energy during driving, and there is an inconsistent driving experience before and after.

[0097] Fig.10 Schematic diagram of a vehicle 10 provided in an embodiment of the present application. Fig.10 As shown, the vehicle 10 of this embodiment includes: a processor 1001, a memory 1002, and a computer program 1003 stored in the memory 1002 and executable on the processor 1001. When the processor 1001 executes the computer program 1003, the steps in the above-mentioned method embodiments are implemented. Alternatively, when the processor 1001 executes the computer program 1003, the functions of the modules / units in the above-mentioned device embodiments are implemented.

[0098] The vehicle 10 may be a desktop computer, a notebook, a PDA, a cloud server, etc. The vehicle 10 may include but is not limited to a processor 1001 and a memory 1002. Those skilled in the art will appreciate that Fig.10 The vehicle 10 is merely an example and is not intended to be limiting of the vehicle 10 , which may include more or fewer components than shown, or different components.

[0099] The processor 1001 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0100] The memory 1002 may be an internal storage unit of the vehicle 10, such as a hard disk or memory of the vehicle 10. The memory 1002 may also be an external storage device of the vehicle 10, such as a plug-in hard disk, a smart memory card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the vehicle 10. The memory 1002 may also include both an internal storage unit of the vehicle 10 and an external storage device. The memory 1002 is used to store computer programs and other programs and data required by the vehicle.

[0101] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units.

[0102] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. The computer program may include computer program code, and the computer program code may be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of regional requirements and patent practice. For example, in some areas, according to regional requirements and patent practice, the computer-readable medium does not include electric carrier signals and telecommunication signals.

[0103] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A charging control method, characterized in that: include: When the vehicle is being charged, obtaining a target energy recovery strategy for the vehicle; generating a vehicle charging threshold request according to the target energy recovery strategy, and sending the vehicle charging threshold request to a user, wherein the vehicle charging threshold request includes an initial charging threshold of the vehicle; According to the response message returned by the user to the initial charging threshold, a target charging threshold of the vehicle is determined, and charging of the vehicle is controlled according to the target charging threshold.

2. The method according to claim 1, characterized in that Generating a vehicle charging threshold request according to the energy recovery strategy includes: Obtaining the correspondence between the preset energy recovery strategy and the charging threshold; According to the target energy recovery strategy, searching for a correspondence between the preset energy recovery strategy and the charging threshold, and obtaining a first charging threshold corresponding to the target energy recovery strategy; The initial charging threshold is determined according to the first charging threshold corresponding to the target energy recovery strategy obtained by searching, and the vehicle charging threshold request is generated according to the initial charging threshold.

3. The method according to claim 2, characterized in that Determining the initial charging threshold according to the first charging threshold corresponding to the target energy recovery strategy obtained by searching includes: Acquiring a control mode of the vehicle, and determining a second charging threshold according to the control mode of the vehicle; A lowest charging threshold is determined from the first charging threshold and the second charging threshold, and the lowest charging threshold is used as the initial charging threshold.

4. The method according to claim 1, characterized in that: The method further comprises: controlling charging of the vehicle according to the target charging threshold value, comprising: Acquiring the ambient temperature of the vehicle's current environment, and comparing the ambient temperature with a preset temperature threshold; If the ambient temperature is higher than the temperature threshold, charging of the vehicle is controlled according to the target charging threshold.

5. The method according to claim 1, characterized in that The method further comprises: controlling charging of the vehicle according to the target charging threshold value, comprising: Acquiring a rechargeable charging quantity of the vehicle, where the rechargeable charging quantity is used to represent the number of times the vehicle is not fully charged in a current cycle; If the rechargeable battery charge amount is lower than a preset cycle threshold, charging of the vehicle is controlled according to the target charging threshold.

6. The method according to claim 1, characterized in that After controlling charging of the vehicle according to the target charging threshold, the method further includes: Matching the target charging threshold with the target energy recovery strategy to obtain a matching result; If the matching result indicates that the target energy recovery strategy fails to match the target charging threshold, the target energy recovery strategy is adjusted according to the target charging threshold.

7. The method according to claim 1, characterized in that The method further comprises: During the process of controlling charging of the vehicle according to the target charging threshold, monitoring a battery health status of the vehicle; If the battery health status of the vehicle indicates that there is an abnormality in the battery of the vehicle, charging of the vehicle is stopped and an abnormality reminder is issued.

8. A charging control device, characterized in that: The device comprises: An acquisition module, used for acquiring a target energy recovery strategy of the vehicle when the vehicle is being charged; A generating module, configured to generate a vehicle charging threshold request according to the target energy recovery strategy, and send the vehicle charging threshold request to a user, wherein the vehicle charging threshold request includes an initial charging threshold of the vehicle; A control module is used to determine a target charging threshold of the vehicle according to a response message returned by the user to the initial charging threshold, and to control charging of the vehicle according to the target charging threshold.

9. A vehicle 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 computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

Images