Battery management method, device, and apparatus, and vehicle

Abstract

The application provides a battery management method, device, equipment and vehicle. Specifically, the method comprises: obtaining navigation information and battery power information of a vehicle; determining whether the vehicle meets charging conditions according to the navigation information and / or the battery power information; in response to the navigation information and / or the battery power information meeting the charging conditions, obtaining current temperature information of the battery, and adjusting the temperature of the battery according to the current temperature information of the battery. By using the battery management method, the charging intention of the vehicle can be predicted in advance, and the temperature of the battery can be adjusted in advance according to the actual situation, so that the temperature of the battery can be adjusted to the fast charging temperature range before fast charging, the temperature adjustment time of the vehicle in the fast charging process is shortened, and the charging speed of the vehicle is improved.

Description

Battery management methods, devices, equipment and vehicles Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a battery management method, apparatus, device, and vehicle. Background Technology

[0002] With the gradual development of industry and the continuous improvement of living standards, vehicles have become an indispensable means of transportation for people's work and life. However, due to the increasingly obvious problem of energy shortage, the disadvantages of traditional fuel vehicles have gradually become prominent. Therefore, the development and application of new energy has become one of the hot research topics. China is one of the countries with the most new energy industries in the world, especially in the field of new energy vehicles, where it is in a world-leading position in both research and development and manufacturing. Among them, the vast majority of new energy vehicles use batteries as the driving unit to enable vehicles to have good range, and are equipped with a battery thermal management system to regulate the battery temperature to maintain the stability of the battery charging and discharging process. Under normal circumstances, when a vehicle is charged using a fast charging station, the battery needs to reach the preset fast charging temperature to achieve the corresponding fast charging effect. If there is a deviation between the vehicle's charging temperature and its fast charging temperature, the battery temperature needs to be regulated by the battery thermal management system. Currently, the battery temperature regulation process takes time and cannot be pre-charged according to the vehicle's charging needs. Affected by the battery temperature, the charging speed of the battery is slow and the charging time is relatively long, resulting in a certain lag in charging and thus reducing the quality of the vehicle. Summary of the Invention

[0003] In view of this, the main objective of this application is to solve the technical problems in the prior art that the charging temperature of the battery cannot be adjusted according to the charging needs of the vehicle, and that the temperature control process is time-consuming and the charging speed is slow, and to provide a battery management method, device, equipment and vehicle.

[0004] To achieve the above objectives, this application provides a battery management method, comprising:

[0005] Obtain vehicle navigation information and battery level information;

[0006] Determine whether the vehicle meets the charging conditions based on the navigation information and / or the battery power information;

[0007] In response to the navigation information and / or the battery power information meeting the charging conditions, the current temperature information of the battery is obtained, and the temperature of the battery is adjusted according to the current temperature information of the battery.

[0008] Optionally, determining whether the vehicle meets the charging conditions based on the navigation information and / or the battery power information includes:

[0009] If the battery charge information is less than a first charge threshold, then the vehicle meets the charging conditions.

[0010] If the vehicle's battery level is greater than the first battery level threshold and less than the second battery level threshold, then the system determines whether the vehicle meets the charging conditions based on the vehicle's navigation information.

[0011] Optionally, the vehicle's navigation information includes the vehicle's current location information, the vehicle's destination information, road congestion information, and charging station information;

[0012] The step of determining whether the vehicle meets the charging conditions based on the vehicle's navigation information includes:

[0013] The vehicle's first estimated route is determined based on the vehicle's battery power information and road congestion information. The vehicle's actual route is determined based on the vehicle's current location information and destination information. The vehicle's charging route is determined based on the vehicle's current location information and charging station information. Based on the vehicle's destination information, it is determined whether a charging station exists at the vehicle's destination.

[0014] Optionally, in response to the vehicle's battery level being greater than the first battery level threshold and less than the second battery level threshold, it is determined whether the vehicle meets the charging conditions based on the vehicle's navigation information. It also includes:

[0015] In response to the presence of a charging station at the destination, the system determines whether the vehicle meets the charging conditions based on the vehicle's first estimated distance, the actual distance, and the charging distance.

[0016] If the first estimated distance is less than the actual distance but greater than the charging distance, then the vehicle meets the charging conditions.

[0017] Optionally, in response to the vehicle's battery level being greater than the first battery level threshold and less than the second battery level threshold, it is determined whether the vehicle meets the charging conditions based on the vehicle's navigation information. It also includes:

[0018] In response to the absence of a charging station at the destination, the reserved mileage coefficient of the vehicle is obtained;

[0019] The second estimated distance of the vehicle is determined based on the first estimated distance of the vehicle and the reserved mileage coefficient of the vehicle;

[0020] Based on the vehicle's second estimated distance, the actual distance, and the charging distance, determine whether the vehicle meets the charging conditions;

[0021] If the second estimated distance is less than the actual distance but greater than the charging distance, then the vehicle meets the charging conditions.

[0022] Optionally, the step of obtaining the current temperature information of the battery in response to the navigation information and / or the battery power information meeting the charging conditions, and adjusting the temperature of the battery according to the current temperature information, includes:

[0023] Determine whether the charging station is a fast charging station;

[0024] In response to the fact that the charging station is a fast charging station, the current temperature information of the battery is obtained;

[0025] In response to the current temperature of the battery being lower than the minimum temperature threshold of the fast charging temperature range, the battery preheating system is activated to heat the battery.

[0026] In response to the current temperature of the battery being greater than the maximum temperature threshold of the fast charging temperature range, the air conditioning system is activated to dissipate heat from the battery.

[0027] Optionally, obtaining the vehicle's navigation information and battery power information includes:

[0028] Obtain the current location information of the vehicle and determine whether the vehicle is on a highway;

[0029] In response to the vehicle being on a non-highway, the vehicle's battery power information is obtained.

[0030] Based on the same invention, this application also provides a battery management device, characterized in that it includes:

[0031] The acquisition module is used to acquire the vehicle's navigation information and battery power information;

[0032] The determination module is used to determine whether the vehicle meets the charging conditions based on the navigation information and / or the battery power information;

[0033] The control module is configured to, in response to the navigation information and / or the battery power information meeting the charging conditions, acquire the current temperature information of the battery and adjust the temperature of the battery according to the current temperature information of the battery.

[0034] Based on the same invention, 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 method described in any of the above embodiments.

[0035] Based on the same invention, this application also provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method described in any of the above embodiments.

[0036] Based on the same invention, this application also provides a vehicle, including a battery management device as described in the above embodiments; and / or an electronic device as described in the above embodiments; and / or a non-transitory computer-readable storage medium as described in the above embodiments.

[0037] As can be seen from the above, this application, through battery management methods, devices, equipment, and vehicles, can predict the charging intention of a vehicle in advance and adjust the battery temperature in advance according to the actual situation of the vehicle, so that the battery temperature is adjusted to the fast charging temperature range before fast charging, shortening the temperature adjustment time of the vehicle during fast charging, thereby improving the charging speed of the vehicle. Attached Figure Description

[0038] 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.

[0039] Figure 1 is a flowchart of the battery management method;

[0040] Figure 2 is a flowchart for determining whether navigation information and / or battery power information meet the charging conditions;

[0041] Figure 3 is a flowchart for determining whether navigation information meets charging conditions;

[0042] Figure 4 is a flowchart of the management method when there are charging stations at the destination;

[0043] Figure 5 is a flowchart of the management method when there are no charging stations at the destination;

[0044] Figure 6 is a flowchart showing whether a vehicle is on a highway;

[0045] Figure 7 is a flowchart of one embodiment of the battery management method in this application;

[0046] Figure 8 is a schematic diagram of the battery management device;

[0047] Figure 9 is a schematic diagram of the electronic device. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] In related technologies, most new energy vehicles use batteries as the driving unit to enable the vehicle to have good range. These vehicles are equipped with battery thermal management systems to regulate battery temperature and maintain stability during the charging and discharging process. Typically, when charging a vehicle via a fast charging station, the battery needs to reach a preset fast-charging temperature to achieve the desired fast-charging effect. If the vehicle's charging temperature deviates from its fast-charging temperature, the battery thermal management system needs to adjust the battery temperature to regulate its operating temperature. Currently, the battery temperature regulation process is time-consuming and cannot pre-calculate the battery temperature according to the vehicle's charging needs. Due to the influence of battery temperature, the charging speed is slow, and the charging time is relatively long, resulting in a certain degree of charging lag and thus reducing vehicle quality.

[0051] In view of this, referring to Figure 1, this application provides a battery management method, including:

[0052] Step S100: Obtain the vehicle's navigation information and battery power information;

[0053] In this step, while the vehicle is in motion, the controller can actively acquire the vehicle's navigation information and battery power information during the driving process. Based on the navigation information and battery power information, the controller can adjust the battery thermal management system to regulate the battery's operating temperature, so that it can meet the fast charging temperature in advance.

[0054] Step S200: Determine whether the vehicle meets the charging conditions based on navigation information and / or battery power information;

[0055] In this step, after obtaining the vehicle's navigation information and battery power information, it is determined whether the navigation information and / or battery power information meet the charging conditions, and based on the corresponding determination results, it is determined whether to adjust the battery temperature in advance.

[0056] Step S300: In response to the navigation information and / or battery power information meeting the charging conditions, obtain the current temperature information of the battery, and adjust the battery temperature according to the current temperature information of the battery.

[0057] In this step, the system judges the vehicle's navigation information and / or battery power information. If the judgment result is that the navigation information and / or battery power information meet the charging conditions, then the user needs to charge the vehicle. Therefore, the system obtains the current temperature information of the battery through the controller and adjusts the battery temperature according to the current temperature information to adjust the battery temperature to the fast charging temperature range in advance, thereby improving the charging speed of the vehicle.

[0058] Specifically, during vehicle operation, the vehicle controller actively acquires navigation information and battery power information. Based on this information, it determines whether the vehicle meets charging conditions and whether the battery thermal management system needs to adjust the battery temperature in advance. If the battery power and / or navigation information meet the charging conditions, the user intends to charge the vehicle and may use a fast charging station. Therefore, the controller can acquire the current battery temperature information and control the battery thermal management system to adjust the battery temperature. This ensures the battery temperature is within the fast charging temperature range, meeting the vehicle's fast charging requirements, shortening the battery temperature adjustment time during fast charging, increasing charging speed, and improving vehicle quality.

[0059] In addition, this application, through a battery management method, can predict the vehicle's charging intention in advance based on the vehicle's navigation information and / or battery power information, confirm whether the user needs to charge the vehicle, and adjust the battery temperature in advance according to the actual situation of the vehicle, so as to adjust the battery temperature to the fast charging temperature range in advance, shorten the time for adjusting the battery temperature during the charging process, improve the charging speed of the vehicle, and also improve the quality of the vehicle.

[0060] In some embodiments, please refer to Figure 2, determining whether the vehicle meets the charging conditions based on navigation information and / or battery power information includes:

[0061] Step S210: Determine whether the battery power information meets the charging conditions;

[0062] In this step, for the vehicle, after obtaining the vehicle's battery power information, it is determined whether the vehicle meets the charging conditions based on the battery power information; since the battery is the vehicle's driving unit, the lower the remaining battery power, the higher the vehicle's charging demand.

[0063] Step S220: In response to the battery power information being less than the first power threshold, the vehicle meets the charging conditions;

[0064] In this step, if the vehicle's battery power information is less than the first power threshold, it means that the remaining battery power is low. At this time, the vehicle's battery power information meets the charging conditions, and the user has a strong demand for charging the vehicle.

[0065] Step S230: In response to the vehicle's battery power information being greater than a first power threshold and less than a second power threshold, determine whether the vehicle meets the charging conditions based on the vehicle's navigation information.

[0066] In this step, if the vehicle's battery charge information is greater than the first charge threshold and less than the second charge threshold, then the vehicle's battery charge has not reached a low state. However, for the vehicle, the remaining battery charge may not necessarily meet the user's range requirements. Therefore, it is necessary to confirm whether the vehicle meets the charging conditions based on the vehicle's navigation information.

[0067] Specifically, during vehicle operation, the vehicle's sub-controller can acquire battery power information and feed it back to the controller. Based on this information, the controller determines whether the vehicle meets charging requirements. The sub-controller, used to acquire battery power information, can be a battery monitoring sensor. The vehicle's remaining battery power can predict its charging needs; the lower the remaining battery power, the higher the probability of the user charging the vehicle. If the vehicle's battery power is less than a first threshold, the remaining battery power is low and does not meet the vehicle's power needs, but the probability of the user charging the vehicle is high, and the vehicle meets charging requirements. If the vehicle's battery power is greater than the first threshold but less than a second threshold, the battery power is not at a low level, but the remaining range may not meet the user's needs. Therefore, navigation information can be used to further assess whether the vehicle meets charging requirements in this situation. If the vehicle's battery power is greater than or equal to the second threshold, the remaining battery power is sufficient to maintain the user's current needs, and the probability of charging the vehicle is low, making it unsuitable for the battery management method described in this application.

[0068] It should be noted that the first and second battery capacity thresholds mentioned above can be selected based on factors such as battery type, capacity specifications, battery model, consumption patterns, and vehicle configuration. For example, if the battery capacity is small, in order to ensure the customer's driving experience, it is necessary to maximize the vehicle's range and avoid power loss in a short period of time. Therefore, the first battery capacity threshold should not be set too low, and can be set to any percentage between 5% and 10% of the battery's rated capacity. If the vehicle has a high configuration and the components in the vehicle consume more energy and consume it faster, the second battery capacity threshold should not be set too high, and can be set to any percentage between 20% and 30% of the battery's rated capacity.

[0069] In some embodiments, the vehicle's navigation information includes the vehicle's current location information, the vehicle's destination information, road congestion information, and charging station information.

[0070] Determining whether a vehicle meets charging requirements based on its navigation information includes:

[0071] The vehicle's first estimated route is determined based on its battery charge information and road congestion information. The actual route is determined based on the vehicle's current location information and destination information. The charging route is determined based on the vehicle's current location information and charging station information. Finally, based on the vehicle's destination information, it is determined whether a charging station is available at the vehicle's destination.

[0072] Specifically, during vehicle operation, the controller can actively acquire battery power and navigation information. For navigation information, a GPS or BeiDou satellite navigation system can be used. This navigation information can include the vehicle's current location, destination, traffic congestion, and charging station information. It's worth noting that the vehicle's current location can be determined through the navigation system. Regarding destination information, the navigation system can analyze and obtain it based on the user's driving habits, or the user can input it in advance via voice or text commands. Furthermore, the vehicle's destination information can also... Information such as the availability of charging stations near the destination can be obtained by combining maps from the navigation system and internet information. Similarly, information about charging stations can be obtained by combining maps from the navigation system and internet information, and this information can include the location of charging stations, the presence of fast charging stations, and the number of charging stations. Information about road congestion can be obtained by combining navigation systems, maps, and internet information to determine the degree of congestion on the road. A congestion coefficient 'a' can be used to represent the degree of congestion, and this coefficient can be used to determine the actual remaining range of the battery. Since road congestion increases vehicle energy consumption and relatively reduces range, the congestion coefficient 'a' < 1.

[0073] Specifically, firstly, after obtaining navigation information, the vehicle determines its first estimated distance based on the vehicle's battery level and road congestion information. At this point, we can assume the remaining battery power allows for a range of K under congestion-free conditions. Therefore, the first estimated distance can be obtained based on the road congestion information, i.e., this first estimated distance is K. First, 'a' represents the actual driving range with the remaining battery power. Second, navigation information can be used to obtain the vehicle's current location and destination information to determine the actual distance the vehicle will travel, i.e., the distance between the vehicle's current location and the destination, which can be represented by 'F'. Third, based on the vehicle's current location and charging station information from the navigation system, the charging distance from the current location to the charging station is determined. This distance is used to represent the distance between the vehicle's current location and the charging station, and can be represented by 'G'. In addition, the destination information in the navigation information can also include information about whether there are charging stations at the destination, so that users can determine whether they need to charge the vehicle based on the actual situation.

[0074] In some embodiments, referring to Figure 3, in response to the vehicle's battery power information being greater than a first power threshold and less than a second power threshold, it is determined whether the vehicle meets the charging conditions based on the vehicle's navigation information. It also includes:

[0075] Step S2311: In response to the existence of a charging pile at the destination, determine whether the vehicle meets the charging condition according to the first estimated distance, actual distance, and charging distance of the vehicle.

[0076] In this step, it can be determined whether there is a charging pile at the destination according to the destination information of the vehicle in the navigation information. Among them, if there is a charging pile at the destination of the vehicle, then according to the first estimated distance K of the vehicle a, actual distance F, and charging distance G, determine whether the vehicle meets the charging condition, and determine whether the vehicle in this state meets the charging condition.

[0077] Step S2312: In response to the first estimated distance being less than the actual distance and greater than the charging distance, the vehicle meets the charging condition.

[0078] In this step, if the first estimated distance K a is less than the actual distance F and greater than the charging distance G, that is, G < K a < F, then the remaining power of the battery at this time is not enough to support the vehicle to reach the destination, but it can support the vehicle to reach the corresponding charging station so that the user can charge the vehicle. Therefore, the vehicle meets the charging condition at this time.

[0079] Specifically, determine whether there is a charging station at the destination according to the destination information of the vehicle in the navigation information to confirm whether the vehicle meets the corresponding charging condition. Among them, for the situation where there is a charging pile at the destination of the vehicle, if the first estimated distance of the vehicle is greater than the actual distance, that is, K a > F, then the vehicle can reach the destination. At this time, the user can not consider charging the vehicle midway, so it is not suitable for the battery management method in this application. If the first estimated distance K a is less than the actual distance F and greater than the charging distance G, that is, G < K a < F, then the remaining power of the battery is not enough to support the vehicle to reach the destination, but it can support the vehicle to reach the charging station to supplement the electric energy. At this time, the user can drive the vehicle to the charging station to charge to meet the user's vehicle use needs and extend the battery's endurance. Therefore, the vehicle meets the charging condition at this time.

[0080] In some embodiments, please refer to FIG. 4. In response to the battery power information of the vehicle being greater than the first power threshold and less than the second power threshold, determine whether the vehicle meets the charging condition according to the navigation information of the vehicle. It further includes:

[0081] Step S2321: In response to the non-existence of a charging pile at the destination, obtain the reserved mileage coefficient of the vehicle.

[0082] In this step, for the vehicle, the destination information in the navigation system can be used to determine if a charging station exists at the destination; if no charging station exists at the destination, the first estimated distance K is used to determine the destination. a. The actual distance F and the charging distance G determine whether the vehicle meets the charging conditions. Since there is no charging station at the vehicle's destination, in order to ensure that the user can find a charging station to charge the vehicle, and taking into account factors such as vehicle configuration, usage scenario, and user's familiarity with the environment, a reserved mileage coefficient b can be set in the vehicle in advance. In order to ensure that the remaining battery power can support the vehicle to reach the charging station and that there is still remaining power when the vehicle arrives at the charging station, the reserved mileage coefficient b can be less than 1. That is, based on the first estimated distance, it is ensured that the remaining battery power can support the user to find a charging station to charge the vehicle.

[0083] Step S2322: Determine the second estimated distance of the vehicle based on the vehicle's first estimated distance and the vehicle's reserved mileage coefficient;

[0084] In this step, when the user drives the vehicle to find a charging station, the relationship between the vehicle's second estimated distance and the charging distance is confirmed to ensure that the vehicle can reach the charging station for charging; wherein, based on the vehicle's first estimated distance K... The second estimated distance of the vehicle is determined by a and the reserved mileage factor b, which can be used to derive the second estimated distance of the vehicle as K. a b.

[0085] Step S2323: Determine whether the vehicle meets the charging conditions based on the vehicle's second estimated distance, actual distance, and charging distance;

[0086] In this step, if there is no charging station at the vehicle's destination, the second estimated distance K of the vehicle is used. a b. The actual distance F and the charging distance G determine whether the vehicle meets the charging conditions, whether the vehicle's remaining battery power can support the vehicle to its destination, and whether the user goes to a charging station to charge under these circumstances, thereby confirming whether the vehicle meets the charging conditions in this state.

[0087] Step S2324: In response to the second estimated distance being less than the actual distance but greater than the charging distance, the vehicle meets the charging conditions.

[0088] In this step, if the second estimated distance K a b is less than the actual distance F and greater than the charging distance G, i.e., G <K a If b < F, the remaining battery power of the vehicle is not enough to support the vehicle to reach the destination, but it can support the vehicle to reach the charging station. By reserving extra power during the process of finding a charging station for the user, the reliability of the vehicle to reach the charging station is improved. Therefore, the vehicle in this state meets the charging conditions.

[0089] Specifically, during the driving process of the vehicle, it can actively obtain the navigation information of the vehicle and confirm whether there is a charging pile at the destination according to the destination information in the navigation information. Among them, in the case where there is no charging pile at the destination of the vehicle, obtain the reserved mileage coefficient b preset in the vehicle, and according to the first estimated distance K of the vehicle a and the reserved mileage coefficient b, obtain the second estimated distance K a b to ensure that it supports the user to find a charging station to charge the vehicle; according to the second estimated distance K of the vehicle a b, the actual distance F and the charging distance G to judge whether the vehicle meets the charging conditions. If the second estimated distance K of the vehicle a b is less than the actual distance F and greater than the charging distance G, that is, G < K a b < F, the remaining battery power is not enough to support the vehicle to reach the destination, but it can make the vehicle reach the charging station to replenish electric energy.

[0090] In addition, the above-mentioned reserved mileage coefficient b can be preset before the vehicle leaves the factory or can be imported through the controller. The specific value of the reserved mileage coefficient b can be set according to factors such as vehicle configuration, battery capacity, and driving habits. For example, the reserved mileage coefficient can be set to 0.8.

[0091] In some embodiments, please refer to FIG. 5. In response to the navigation information and / or the battery power information meeting the charging conditions, obtain the current temperature information of the battery and regulate the temperature of the battery according to the current temperature information of the battery; including:

[0092] Step 310, determine whether the charging pile is a fast charging pile;

[0093] In this step, when the user drives the vehicle to the charging station, it can be judged whether there is a charging pile in the charging station through the charging station information in the navigation information to determine whether a fast charging pile can be used to quickly charge the vehicle.

[0094] Step 320, in response to the charging pile being a fast charging pile, obtain the current temperature information of the battery;

[0095] In this step, if the charging station information confirms that the charging pile in the charging station is a fast charging pile, the vehicle can be fast charged. To meet the fast charging conditions of the vehicle, the battery operating temperature needs to be within the fast charging temperature range to increase the charging speed of the vehicle. Therefore, the battery temperature at this time is obtained in order to regulate its temperature.

[0096] Step 330: In response to the current temperature information of the battery being lower than the minimum temperature threshold of the fast charging temperature range, the battery preheating system is activated to heat the battery.

[0097] In this step, if the current temperature of the battery is less than the minimum temperature threshold of the fast charging temperature range, the battery temperature is still within the fast charging temperature range. Therefore, the battery needs to be heated in advance. For example, a battery preheating system can be used to preheat the battery so that the battery temperature reaches the corresponding temperature within the fast charging temperature range, thereby improving the charging speed of the vehicle.

[0098] Step 340: In response to the current temperature information of the battery being greater than the maximum temperature threshold of the fast charging temperature range, the air conditioning system is activated to dissipate heat from the battery.

[0099] In this step, if the current temperature of the battery is greater than the maximum temperature threshold of the fast charging temperature range, the current temperature of the battery is too high. Therefore, it is necessary to dissipate heat from the battery and lower its temperature. For example, the air conditioning system can be turned on to dissipate heat from the battery in advance. The air conditioning system will remove some of the heat from the battery so that the battery temperature reaches the corresponding temperature within the fast charging temperature range, shortening the temperature adjustment time during the fast charging process and improving the charging speed of the vehicle.

[0100] Specifically, if the vehicle's navigation and battery power information meet the charging requirements, before the vehicle enters the charging station, the system determines whether a fast-charging station is available. If the charging station is not a fast-charging station, although the vehicle meets the charging requirements, it will still use fast charging, so there is no need to adjust the battery temperature. If the charging station is a fast-charging station, the vehicle can be charged using it. To ensure the fast charging speed, the battery temperature needs to be within the fast-charging temperature range. Therefore, the system obtains the current battery temperature information and controls the battery thermal management system to adjust the battery temperature accordingly. If the current battery temperature is less than the minimum temperature threshold of the fast charging temperature range, the battery temperature is relatively low, so the battery can be preheated. In this case, the battery preheating system in the battery thermal management system can be controlled to preheat the battery. Similarly, if the current battery temperature is greater than the maximum temperature threshold of the fast charging temperature range, the battery temperature is already high, so the battery needs to be cooled in advance to lower the battery temperature. In this case, the air conditioning system can be used to preheat the battery, removing some of the battery's heat so that the battery temperature gradually decreases, thereby shortening the battery temperature adjustment time during vehicle charging and thus improving the vehicle's charging speed.

[0101] It should be noted that different types of vehicles use different types of batteries, so the fast charging temperature range of the batteries also varies. For example, for vehicles using lithium phosphate batteries, the fast charging temperature range can be set to 10℃-40℃.

[0102] In some embodiments, please refer to Figure 6, to obtain the vehicle's navigation information and battery power information, including;

[0103] Step S50: Obtain the vehicle's current location information and determine whether the vehicle is on a highway;

[0104] In this step, while the vehicle is in motion, the controller actively acquires the vehicle's navigation information. Based on the vehicle's current location information in the navigation information, the controller can determine the vehicle's driving position and driving scenario to determine whether the vehicle is currently driving on a highway.

[0105] Step S60: In response to the vehicle being on a non-highway, obtain the vehicle's battery power information.

[0106] In this step, the vehicle's driving scenario is determined based on its current location information. If the vehicle's driving scenario is not on a highway, the vehicle's battery power information is obtained, and the vehicle's charging conditions are determined based on the battery power information.

[0107] Specifically, during vehicle operation, the controller actively acquires the vehicle's navigation information and can determine the vehicle's current location based on the current location information in the navigation information, thus confirming the vehicle's driving position and driving scenario. If the vehicle's driving scenario is not a highway, the controller acquires the vehicle's battery power information and then determines whether the vehicle meets the charging requirements based on the battery power information.

[0108] Please refer to Figure 7. One embodiment of this application is illustrated with the flowchart shown in Figure 7, as follows:

[0109] When a user is driving the vehicle, the controller actively acquires the vehicle's navigation information. Based on the vehicle's current location information in the navigation information, it determines whether the vehicle is traveling on a highway. If the driving scenario is on a highway, the battery management method of this application is not suitable. If the driving scenario is not on a highway, the vehicle's battery power information is acquired to determine whether the battery power information meets the charging conditions. Specifically, if the vehicle's battery power information is greater than or equal to 20% of the battery capacity, the battery power is sufficient, and the probability of the user charging the vehicle is low. If the vehicle's battery power information is less than or equal to 5% of the battery capacity, the battery power is low, and the user may look for a charging station to charge the vehicle. If the vehicle's battery power information is greater than 5% but less than 20% of the battery capacity, the controller further judges the vehicle's navigation information to confirm whether the vehicle's navigation information meets the charging conditions.

[0110] The vehicle's navigation information includes its current location, destination, traffic congestion, and charging station information. For the vehicle, the controller can determine the remaining driving range K based on the battery level and the traffic congestion coefficient a from the navigation information. Based on the remaining driving range K and the congestion coefficient a, the controller can then calculate the vehicle's first estimated distance K. 'a' represents the distance the vehicle travels on roads with this congestion coefficient; the actual distance F of the vehicle is determined based on the vehicle's destination information and current location information in the navigation information, which represents the distance between the vehicle and the destination; at the same time, the charging distance G of the vehicle is determined based on the vehicle's current location information and charging station information in the navigation information, which represents the distance between the vehicle's current location and the charging station. At this point, it is determined whether there is a charging station at the vehicle's destination.

[0111] If a charging station is available at the vehicle's destination, based on the vehicle's actual distance K and the first estimated distance K... a) and the charging distance G determine whether the vehicle meets the charging conditions; if the vehicle's actual distance F is greater than the first estimated distance K... a, i.e., F>K If a is such that the vehicle can reach the destination, the user can choose to charge the vehicle after reaching the destination, so it is not suitable for the battery management method of this application; if the first estimated distance K of the vehicle a is greater than the actual distance F and less than the charging distance G, that is, G < K a < F. At this time, the remaining battery power cannot support the vehicle to reach the destination, but can support the vehicle to reach the charging station to replenish power. At this time, the vehicle meets the charging conditions;

[0112] In the case where there is no charging pile at the destination of the vehicle, to meet the charging needs of the user, obtain the reserved mileage coefficient b in the vehicle. In this embodiment, b is set to 0.8. According to the first estimated distance K a and the reserved mileage coefficient b to determine the second estimated distance, that is, the second estimated distance is K a 0.8. According to the actual distance F of the vehicle, the second estimated distance K a 0.8 and the charging distance G to judge whether the vehicle meets the charging conditions in this case; among them, if the actual distance F of the vehicle is greater than the second estimated distance K a 0.8, that is, F > K a 0.8, then the vehicle can reach the destination, so it is not suitable for the battery management method of this application; if the second estimated distance K of the vehicle a 0.8 is greater than the charging distance G and less than the actual distance F, G < K a 0.8 < F. At this time, the remaining battery power cannot support the vehicle to reach the destination, but can support the vehicle to enter the charging station. At this time, the vehicle meets the charging conditions;

[0113] After the vehicle meets the charging conditions, if the user needs to charge the vehicle, the position information and charging pile information of the charging pile can be determined according to the charging station information, and the HUT (multimedia screen) can be controlled by the controller to display, so as to guide the user; judge whether the charging pile in the station is a fast charging pile according to the charging station information. Among them, if the charging pile is a non-fast charging pile, it is not suitable to execute this method; if the charging pile is a fast charging pile, the user can fast charge the vehicle. At this time, obtain the current temperature of the battery, and adjust the temperature of the battery according to the current temperature information of the battery. If the current temperature information of the battery is greater than the maximum temperature threshold of the fast charging temperature range, the air conditioning system can be used to pre-cool the battery in advance; if the current temperature information of the battery is less than the minimum temperature threshold of the fast charging temperature range, the battery preheating system can be used to heat the battery in advance to shorten the temperature adjustment time and improve the charging speed.

[0114] 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.

[0115] 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.

[0116] Based on the same inventive concept, corresponding to any of the above-described embodiments, this application also provides a battery management device.

[0117] Referring to Figure 8, the battery management device includes:

[0118] The acquisition module 10 is used to acquire the vehicle's navigation information and battery power information;

[0119] The judgment module 20 is used to determine whether the vehicle meets the charging conditions based on navigation information and / or battery power information;

[0120] The control module 30 is used to obtain the current temperature information of the battery in response to navigation information and / or battery power information meeting the charging conditions, and to adjust the battery temperature according to the current temperature information of the battery.

[0121] The battery management device in this application can predict the vehicle's charging intention in advance and adjust the battery temperature in advance according to the actual situation, so that the battery temperature can be in the fast charging temperature range in advance, shortening the user's temperature adjustment time during charging, improving the vehicle's charging speed, and enhancing the vehicle's quality and user experience. Specifically, during the vehicle's operation, the acquisition module 10 acquires the vehicle's navigation information and / or battery power information, and feeds the acquired navigation information and / or battery power information back to the judgment module 20. The judgment module 20 determines whether the vehicle's navigation information and / or battery power information meet the charging conditions, and sends the acquired judgment result to the control module 30. If the vehicle's navigation information and / or battery power information meet the charging conditions, after receiving the judgment result, the control module 30 acquires the vehicle's current temperature information through the controller, and controls the vehicle's battery thermal management system according to the judgment result of the battery control module 30 at this time, so as to heat or dissipate heat through the battery thermal management system to make it meet the vehicle's charging conditions.

[0122] 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.

[0123] The apparatus of the above embodiments is used to implement the corresponding battery management method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0124] 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 battery management method described in any of the above embodiments.

[0125] Figure 9 shows a more specific hardware structure diagram of an electronic device provided in this embodiment. The device 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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.).

[0130] 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.

[0131] 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.

[0132] The electronic devices described above are used to implement the corresponding battery management methods in any of the foregoing embodiments and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0133] 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 battery management method as described in any of the above embodiments.

[0134] 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.

[0135] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the battery management 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.

[0136] Based on the same invention, this application also provides a vehicle, including a battery management device as described in any of the foregoing embodiments, and / or an electronic device as described in the foregoing embodiments, and / or a storage medium as described in the foregoing embodiments. Specifically, since the vehicle possesses the battery management device, electronic device, and non-transitory computer-readable medium described in any of the foregoing embodiments, the vehicle possesses all the advantages and beneficial effects of the battery management device, electronic device, and non-transitory computer-readable medium in the foregoing embodiments, and therefore will not be repeated here.

[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 battery management method, characterized in that, include: The system acquires vehicle navigation information and battery power information, wherein the vehicle navigation information includes the vehicle's current location, destination, traffic congestion, and charging station information; and determines whether the vehicle meets charging conditions based on the navigation information and / or the battery power information, including: in response to the battery power information being greater than a first power threshold and less than a second power threshold, determining the vehicle's first estimated distance, actual distance, and charging distance based on the navigation information and the battery power information; determining whether a charging station exists at the vehicle's destination based on the destination information; in response to the absence of a charging station at the vehicle's destination, determining the vehicle's second estimated distance based on the acquired reserved mileage coefficient and the first estimated distance; in response to the second estimated distance being less than the actual distance but greater than the charging distance, the vehicle meets the charging conditions; and in response to the navigation information and / or the battery power information meeting the charging conditions, acquiring the battery's current temperature information and adjusting the battery temperature based on the current temperature information.

2. The battery management method according to claim 1, characterized in that, The step of determining whether the vehicle meets the charging conditions based on the navigation information and / or the battery power information includes: in response to the battery power information being less than a first power threshold, the vehicle meets the charging conditions.

3. The battery management method according to claim 1, characterized in that, The step of determining the vehicle's first estimated distance, the vehicle's actual distance, and the vehicle's charging distance based on the navigation information and the battery power information includes: determining the vehicle's first estimated distance based on the vehicle's battery power information and the road congestion information; determining the vehicle's actual distance based on the vehicle's current location information and the vehicle's destination information; determining the vehicle's charging distance based on the vehicle's current location information and the charging station information; and determining whether a charging station exists at the vehicle's destination based on the vehicle's destination information.

4. The battery management method according to claim 3, characterized in that, Also includes: In response to the presence of a charging station at the destination, the system determines whether the vehicle meets the charging conditions based on the vehicle's first estimated distance, the actual distance, and the charging distance. If the first estimated distance is less than the actual distance but greater than the charging distance, then the vehicle meets the charging conditions.

5. The battery management method according to claim 4, characterized in that, The step of obtaining the current temperature information of the battery in response to the navigation information and / or the battery power information meeting the charging conditions, and adjusting the temperature of the battery according to the current temperature information, includes: determining whether the charging pile is a fast charging pile; obtaining the current temperature information of the battery in response to the charging pile being a fast charging pile; activating the battery preheating system to heat the battery in response to the current temperature information of the battery being less than the minimum temperature threshold of the fast charging temperature range; and activating the air conditioning system to dissipate heat from the battery in response to the current temperature information of the battery being greater than the maximum temperature threshold of the fast charging temperature range.

6. The battery management method according to claim 3, characterized in that, The step of obtaining the vehicle's navigation information and battery power information includes: obtaining the vehicle's current location information and determining whether the vehicle is on a highway; and in response to the vehicle being on a non-highway, obtaining the vehicle's battery power information.

7. A battery management device, characterized in that, include: An acquisition module is used to acquire vehicle navigation information and battery power information, wherein the vehicle navigation information includes the vehicle's current location information, the vehicle's destination information, road congestion information, and charging station information; a judgment module is used to determine whether the vehicle meets the charging conditions based on the navigation information and / or the battery power information; including: in response to the battery power information being greater than a first power threshold and less than a second power threshold, determining the vehicle's first estimated distance, the vehicle's actual distance, and the vehicle's charging distance based on the navigation information and the battery power information; determining whether a charging station exists at the vehicle's destination based on the destination information; in response to the absence of a charging station at the vehicle's destination, determining the vehicle's second estimated distance based on the acquired reserved mileage coefficient and the first estimated distance; in response to the second estimated distance being less than the actual distance but greater than the charging distance, then the vehicle meets the charging conditions; a control module is used to, in response to the navigation information and / or the battery power information meeting the charging conditions, acquire the battery's current temperature information and adjust the battery temperature based on the battery's current temperature information.

8. 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 6.

9. A vehicle comprising the battery management device as claimed in claim 7, and / or the electronic device as claimed in claim 8.

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