Method and system for adjusting SOC balance point of power battery, medium and hybrid vehicle

Abstract

The invention discloses a method and a system for adjusting an SOC balance point of a power battery, a medium and a hybrid vehicle. The method comprises the following steps: acquiring a current navigation travel of the hybrid vehicle; if the navigation destination of the current navigation journey is the position of a target charging pile or the driving similarity between the current navigation journey and the actual driving journey is higher than a similarity set threshold value, determining a first support mileage capable of supporting driving by the first residual electric quantity, determining a second support mileage which can be supported by the second residual electric quantity; wherein the first residual electric quantity is determined according to the original electric quantity corresponding to the current state of charge (SOC) balance point of the power battery, and the second residual electric quantity is determined according to the lowest starting and stopping electric quantity required by starting and stopping an engine; if the first support mileage is smaller than the remaining mileage of the current navigation journey and the second support mileage is larger than or equal to the remaining mileage of the current navigation journey, the current SOC balance point is adjusted according to the minimum starting and stopping amount.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a method, system, medium and hybrid vehicle for adjusting the SOC balance point of a power battery. Background Art

[0002] In hybrid vehicles, the SOC (State of Charge) balance point of the power battery is a critical setting value, which plays a key role in controlling the battery charging and discharging strategy in the hybrid system. Above and below this balance point, the working mode of the hybrid system (engine and motor) will change significantly.

[0003] When the battery charge is higher than the SOC balance point, the vehicle will be more inclined to pure electric drive or hybrid drive mode with electricity as the main driving mode, reducing the involvement of the engine. When the battery charge is lower than the SOC balance point, the engine is started to make the engine more involved in the work, driving the vehicle while taking into account the battery charging.

[0004] Current plug-in hybrid models have a fixed SOC balance point (e.g. 15%) based on parameters such as battery power / available power. When the remaining power is less than 15%, the engine will be forced to start to generate electricity to keep it near the SOC balance point. The fuel consumption of the engine will greatly increase the cost of using the vehicle. Therefore, how to reduce the energy consumption and cost of hybrid vehicles is a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to reduce the energy consumption and vehicle use cost of a hybrid vehicle, the present invention provides a method, system, medium and hybrid vehicle for adjusting the SOC balance point of a power battery, wherein a current navigation trip of the hybrid vehicle is obtained, and if the navigation destination of the current navigation trip is the location of a target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity setting threshold, a first supported mileage that can be supported by the first remaining power is determined, and a second supported mileage that can be supported by the second remaining power is determined; since the first remaining power is determined according to an original power corresponding to the current state of charge SOC balance point, and the second remaining power is determined according to a minimum start-stop power required for starting and stopping the engine, if the first supported mileage is less than the remaining mileage of the current navigation trip, and the second supported mileage is greater than or equal to the remaining mileage of the current navigation trip, it means that the original power of the current SOC balance point is insufficient to support reaching the destination, and the minimum start-stop power required for starting and stopping the engine can support the hybrid vehicle to reach the destination, then the current SOC balance point is adjusted according to the minimum start-stop power, so that the hybrid vehicle can provide a longer pure electric driving mileage, and the engine is prevented from starting too early, thereby reducing energy consumption and vehicle use cost.

[0006] In order to solve the above technical problems, the first aspect of the present invention discloses a method for adjusting the SOC balance point of a power battery, the method comprising:

[0007] Get the current navigation trip of the hybrid vehicle;

[0008] If the navigation destination of the current navigation trip is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity set threshold, determine a first supported mileage that can be supported by the first remaining power, and determine a second supported mileage that can be supported by the second remaining power; wherein the first remaining power is determined according to the original power corresponding to the current state of charge SOC balance point of the power battery, and the second remaining power is determined according to the minimum start-stop power required for starting and stopping the engine;

[0009] If the first supported mileage is less than the remaining mileage of the current navigation trip, and the second supported mileage is greater than or equal to the remaining mileage of the current navigation trip, the current SOC balance point is adjusted according to the minimum start-stop power.

[0010] Optionally, after obtaining the current navigation trip of the hybrid vehicle, the method further includes:

[0011] Determine whether the navigation destination is consistent with the target charging pile mark position in the navigation map;

[0012] If so, determine that the navigation destination is the location of the target charging pile.

[0013] Optionally, the target charging pile is specifically: a private charging pile, or a public charging pile whose proportion of historical charging times exceeds a first set proportion threshold.

[0014] Optionally, if the navigation destination of the current navigation trip is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity set threshold, determining a first supported mileage that can be supported by the first remaining power, and determining a second supported mileage that can be supported by the second remaining power specifically include:

[0015] If the navigation destination is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than the similarity setting threshold, determining whether the hybrid vehicle is a high-frequency charging vehicle;

[0016] If the hybrid vehicle is the high-frequency charging vehicle, the first supported mileage that can be supported by the first remaining power is determined, and the second supported mileage that can be supported by the second remaining power is determined.

[0017] Optionally, the determining whether the hybrid vehicle is a high-frequency charging vehicle specifically includes:

[0018] Counting the historical pure electric travel ratio and historical fuel consumption of the hybrid vehicle;

[0019] Determining whether the historical pure electric travel ratio is higher than a second set ratio threshold, and determining whether the historical fuel consumption is lower than a consumption threshold;

[0020] If both are yes, it is determined that the hybrid vehicle is the high-frequency charging vehicle.

[0021] Optionally, after adjusting the current SOC balance point according to the minimum start-stop power, the method further includes:

[0022] Monitoring the navigation destination of the current navigation trip in real time;

[0023] If the navigation destination changes, the current SOC balance point is adjusted according to the original power.

[0024] Optionally, adjusting the current SOC balance point according to the minimum start-stop power includes:

[0025] The electric quantity of the current SOC balance point is adjusted from the original electric quantity to the minimum start-stop electric quantity.

[0026] A second aspect of the present invention discloses a system for adjusting the SOC balance point of a power battery, comprising:

[0027] An acquisition unit, used to acquire the current navigation itinerary;

[0028] a determination unit, configured to determine a first supported mileage that can be supported by the first remaining power, and determine a second supported mileage that can be supported by the second remaining power, if the navigation destination of the current navigation trip is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity set threshold; wherein the first remaining power is determined according to an original power corresponding to a current state of charge (SOC) balance point of the power battery, and the second remaining power is determined according to a minimum start-stop power required for starting and stopping the engine;

[0029] An adjustment unit is used to adjust the current SOC balance point according to the minimum start-stop power if the first supporting mileage is less than the remaining mileage of the current navigation trip and the second supporting mileage is greater than or equal to the remaining mileage of the current navigation trip.

[0030] Optionally, the system further includes:

[0031] The first judgment unit is used to judge whether the navigation destination is consistent with the target charging pile mark position in the navigation map; if so, determine that the navigation destination is the location of the target charging pile.

[0032] Optionally, the target charging pile is specifically: a private charging pile, or a public charging pile whose proportion of historical charging times exceeds a first set proportion threshold.

[0033] Optionally, the determining unit specifically includes:

[0034] A second judgment unit is used to judge whether the hybrid vehicle is a high-frequency charging vehicle if the navigation destination is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than the similarity setting threshold;

[0035] A determination subunit is used to determine, if the hybrid vehicle is the high-frequency charging vehicle, the first supported mileage that can be supported by the first remaining power, and to determine the second supported mileage that can be supported by the second remaining power.

[0036] Optionally, the second judgment unit is specifically configured to:

[0037] Counting the historical pure electric travel ratio and historical fuel consumption of the hybrid vehicle;

[0038] Determining whether the historical pure electric travel ratio is higher than a second set ratio threshold, and determining whether the historical fuel consumption is lower than a consumption threshold;

[0039] If both are yes, it is determined that the hybrid vehicle is the high-frequency charging vehicle.

[0040] Optionally, the system further includes:

[0041] A monitoring unit, used for monitoring the navigation destination of the current navigation trip in real time;

[0042] The adjustment unit is further configured to adjust the current SOC balance point according to the original power if the navigation destination changes.

[0043] Optionally, the adjustment unit is specifically used to adjust the power of the current SOC balance point from the original power to the minimum start-stop power.

[0044] According to a third aspect of the present invention, a computer-readable storage medium is disclosed, on which a computer program is stored, and when the program is executed by a processor, the steps of the above method are implemented.

[0045] According to a fourth aspect of the present invention, a hybrid vehicle is disclosed, 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 program.

[0046] Through one or more technical solutions of the present invention, the present invention has the following beneficial effects or advantages:

[0047] The present invention provides a method, system, medium and hybrid vehicle for adjusting the state of charge (SOC) balance point of a power battery. The method obtains a current navigation trip of the hybrid vehicle. If the navigation destination of the current navigation trip is the location of a target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity setting threshold, a first supported mileage that can be supported by the first remaining power is determined, and a second supported mileage that can be supported by the second remaining power is determined. Since the first remaining power is determined according to an original power corresponding to a current state of charge (SOC) balance point, and the second remaining power is determined according to a minimum start-stop power required for starting and stopping an engine, if the first supported mileage is less than the remaining mileage of the current navigation trip, and the second supported mileage is greater than or equal to the remaining mileage of the current navigation trip, it means that the original power of the current SOC balance point is insufficient to support reaching the destination, and the minimum start-stop power required for starting and stopping the engine can support the hybrid vehicle to reach the destination. Then, the current SOC balance point is adjusted according to the minimum start-stop power, so that the hybrid vehicle can provide a longer pure electric driving mileage, and the engine is prevented from starting too early, thereby reducing energy consumption and vehicle use costs.

[0048] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0050] Figure 1 A flow chart of a method for adjusting the SOC balance point of a power battery according to an embodiment of the present invention is shown;

[0051] Figure 2 A schematic diagram of a system for adjusting the SOC balance point of a power battery according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0052] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0053] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0054] In the first aspect, an embodiment of the present invention provides a method for adjusting the SOC balance point of a power battery, which adaptively adjusts the SOC balance point of the power battery according to the actual state of the hybrid vehicle through the battery management system, so that the hybrid vehicle can provide a longer pure electric driving mileage and avoid premature engine starting, thereby reducing energy consumption and vehicle use costs.

[0055] like Figure 1 As shown, the method for adjusting the SOC balance point of a power battery provided by an embodiment of the present invention comprises at least the following steps:

[0056] S101, obtaining a current navigation trip of the hybrid vehicle.

[0057] Specifically, according to the navigation request input by the user through voice or text, a current navigation itinerary is generated in the navigation map, wherein the current navigation itinerary has a navigation destination.

[0058] Furthermore, it is determined whether the navigation destination in the current navigation trip is consistent with the target charging pile mark position in the navigation map, and whether the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity set threshold.

[0059] Among them, the target charging pile is specifically: a private charging pile, or a public charging pile whose historical charging times exceed the first set ratio threshold. Specifically, the private charging pile is a proprietary charging pile bound to the hybrid vehicle. The private charging pile is determined by the charging pile identification. After the private charging pile is determined, the corresponding position of the target charging pile is marked on the navigation map. Within the preset time period, the charging time of the hybrid vehicle at each public charging pile is counted; the charging time ratio is obtained by determining the ratio of the charging time of a single public charging pile to the total charging time; if the charging time ratio exceeds the first set ratio threshold, the public charging pile is determined as the target charging pile, and the corresponding position is marked on the navigation map.

[0060] After determining whether the navigation destination in the current navigation trip is consistent with the target charging pile mark position in the navigation map, if the navigation destination is consistent with the target charging pile mark position, the navigation destination is determined to be the location of the target charging pile, and the current navigation trip is a charging trip.

[0061] Since the position of the hybrid vehicle is changing in real time, in the process of determining whether the driving similarity between the current navigation trip and the actual driving trip is higher than the similarity setting threshold, the current actual position and the current navigation position are obtained at preset intervals. The current actual position is obtained by monitoring the current positioning function or positioning software such as GPS, and the current navigation position is extracted from the current navigation trip. The first remaining mileage is determined using the current actual position and the navigation destination. The second remaining mileage is determined using the current navigation position and the navigation destination. The driving similarity between the first remaining mileage and the second remaining mileage is determined. If the driving similarity is higher than the similarity setting threshold, for example, the driving similarity is greater than 95%, it indicates that the current navigation trip is the charging trip.

[0062] In the above two judgment methods, if the judgment result of any one of them is yes, then S102 is executed.

[0063] S102, if the navigation destination of the current navigation trip is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than the similarity set threshold, determine a first supported mileage that can be supported by the first remaining power, and determine a second supported mileage that can be supported by the second remaining power.

[0064] The first remaining power is determined according to the original power corresponding to the current state of charge SOC balance point, and the second remaining power is determined according to the minimum start-stop power required for starting and stopping the engine. Specifically, the current SOC power minus the original power corresponding to the current SOC balance point is used to obtain the first remaining power. Similarly, the current SOC power minus the minimum start-stop power required for the engine is used to obtain the second remaining power.

[0065] In an optional implementation, if the navigation destination of the current navigation trip is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than the similarity setting threshold, it is determined whether the hybrid vehicle is a high-frequency charging vehicle. Specifically, the historical pure electric trip ratio and historical fuel consumption of the hybrid vehicle are counted. Among them, the historical pure electric trip is the proportion of pure electric trips in the set historical trip. The historical fuel consumption ratio is the accumulated fuel consumption of the user in the total time corresponding to the set historical trip. It is determined whether the historical pure electric trip ratio is higher than the second set ratio threshold, and it is determined whether the historical fuel consumption is lower than the consumption threshold. If any judgment result is no, the hybrid vehicle is not a high-frequency charging vehicle. If both are yes, for example, the historical pure electric trip ratio is greater than 90%, and the historical fuel consumption is lower than 2L, it is determined that the hybrid vehicle is the high-frequency charging vehicle. If the hybrid vehicle is the high-frequency charging vehicle, the first supported mileage that the first remaining power can support driving is determined, and the second supported mileage that the second remaining power can support driving is determined.

[0066] The first supported mileage is the mileage that can be supported by the first remaining power, and the second supported mileage is the mileage that can be supported by the second remaining power.

[0067] S103: If the first supported mileage is less than the remaining mileage of the current navigation trip, and the second supported mileage is greater than or equal to the remaining mileage of the current navigation trip, adjust the current SOC balance point according to the minimum start-stop power.

[0068] Among them, if the first supporting mileage is less than the remaining mileage of the current navigation trip, and the second supporting mileage is greater than or equal to the remaining mileage of the current navigation trip, it means that the original power of the current SOC balance point is not enough to support reaching the destination, and reducing it to the minimum start-stop power required for the start-stop engine can support the hybrid vehicle to reach the destination, then the current SOC balance point is adjusted according to the minimum start-stop power. Specifically, the power of the current SOC balance point is adjusted from the original power to the minimum start-stop power. Specifically, the minimum start-stop power is the sum of the theoretical minimum start-stop point and the safety reserve power. For example: the theoretical minimum start-stop point + 1% safety reserve power is the minimum start-stop power.

[0069] In the present technical solution, when it is monitored that the navigation destination is the target charging pile, and the trip trigger judgment satisfies the first supporting mileage that is less than the remaining mileage of the current navigation trip, and the second supporting mileage is greater than or equal to the remaining mileage of the current navigation trip, the power of the current SOC balance point is adjusted from the original power to the minimum start-stop power. Of course, on this basis, if the hybrid vehicle is identified as a high-frequency charging vehicle, the power of the current SOC balance point is also adjusted from the original power to the minimum start-stop power. It can be seen that in this technical solution, the current SOC balance point is adaptively adjusted according to the user's vehicle usage habits, charging pile binding and location, combined with the current trip and vehicle power situation, so that the hybrid vehicle can provide a longer pure electric driving mileage, avoid premature engine starting, thereby reducing energy consumption and vehicle use costs, allowing users to have a longer pure electric trip, and meet the user's needs for more electricity and less oil.

[0070] In an optional implementation, after adjusting the current SOC balance point according to the minimum start-stop power, the navigation destination of the current navigation trip is monitored in real time; if the navigation destination changes, it means that the navigation destination is not the target charging pile. In order to extend the cruising range of the hybrid vehicle, the current SOC balance point is adjusted according to the original power, so that the power of the current SOC balance point is adjusted from the minimum start-stop power to the original power, thereby starting the engine earlier to extend the cruising range.

[0071] Furthermore, it is further monitored whether the driving similarity between the current navigation trip and the actual driving trip is higher than the similarity set threshold; if not, and the first supported mileage is greater than the remaining mileage of the actual driving trip, it means that the original power corresponding to the SOC balance point can support the actual driving trip, then the current SOC balance point is adjusted according to the original power, so that the power of the current SOC balance point is adjusted from the minimum start-stop power to the original power, thereby starting the engine earlier and extending the cruising range.

[0072] In an optional embodiment, after adjusting the current SOC balance point according to the minimum start-stop power, the power battery is charged, and after charging, the current SOC balance point is adjusted according to the original power, so that the power of the current SOC balance point is adjusted from the minimum start-stop power to the original power.

[0073] In the second aspect, based on the same inventive concept as the method for adjusting the SOC balance point of a power battery provided in the embodiment of the first aspect, an embodiment of the present invention also provides a system for adjusting the SOC balance point of a power battery, see Figure 2 ,include:

[0074] An acquisition unit 201 is used to acquire the current navigation itinerary;

[0075] The determination unit 202 is used to determine a first supported mileage that can be supported by the first remaining power, and to determine a second supported mileage that can be supported by the second remaining power if the navigation destination of the current navigation trip is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity set threshold; wherein the first remaining power is determined according to an original power corresponding to a current state of charge (SOC) balance point of the power battery, and the second remaining power is determined according to a minimum start-stop power required for starting and stopping the engine;

[0076] The adjustment unit 203 is used to adjust the current SOC balance point according to the minimum start-stop power if the first supporting mileage is less than the remaining mileage of the current navigation journey and the second supporting mileage is greater than or equal to the remaining mileage of the current navigation journey.

[0077] It should be noted that the power battery SOC balance point adjustment system provided in the embodiment of the present invention, wherein the specific manner in which each module performs operations has been described in detail in the method embodiment provided in the above-mentioned first aspect, and the specific implementation process can refer to the method embodiment provided in the above-mentioned first aspect, and will not be elaborated here.

[0078] In the third aspect, based on the same inventive concept as the method for adjusting the SOC balance point of a power battery provided in the embodiment of the first aspect mentioned above, an embodiment of the present invention further discloses a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods described above.

[0079] In the fourth aspect, based on the same inventive concept as the method for adjusting the SOC balance point of a power battery provided in the embodiment of the first aspect mentioned above, an embodiment of the present invention further discloses a hybrid vehicle, 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 any of the methods described above when executing the program.

[0080] Through one or more embodiments of the present invention, the present invention has the following beneficial effects or advantages:

[0081] The present invention provides a method, system, medium and hybrid vehicle for adjusting the state of charge (SOC) balance point of a power battery. The method obtains a current navigation trip of the hybrid vehicle. If the navigation destination of the current navigation trip is the location of a target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity setting threshold, a first supported mileage that can be supported by the first remaining power is determined, and a second supported mileage that can be supported by the second remaining power is determined. Since the first remaining power is determined according to an original power corresponding to a current state of charge (SOC) balance point, and the second remaining power is determined according to a minimum start-stop power required for starting and stopping an engine, if the first supported mileage is less than the remaining mileage of the current navigation trip, and the second supported mileage is greater than or equal to the remaining mileage of the current navigation trip, it means that the original power of the current SOC balance point is insufficient to support reaching the destination, and the minimum start-stop power required for starting and stopping the engine can support the hybrid vehicle to reach the destination. Then, the current SOC balance point is adjusted according to the minimum start-stop power, so that the hybrid vehicle can provide a longer pure electric driving mileage, and the engine is prevented from starting too early, thereby reducing energy consumption and vehicle use costs.

[0082] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0083] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for adjusting the SOC balance point of a power battery, characterized in that: The method comprises: Get the current navigation trip of the hybrid vehicle; If the navigation destination of the current navigation trip is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity set threshold, determine a first supported mileage that can be supported by the first remaining power, and determine a second supported mileage that can be supported by the second remaining power; wherein the first remaining power is determined according to the original power corresponding to the current state of charge SOC balance point of the power battery, and the second remaining power is determined according to the minimum start-stop power required for starting and stopping the engine; If the first supported mileage is less than the remaining mileage of the current navigation trip, and the second supported mileage is greater than or equal to the remaining mileage of the current navigation trip, the current SOC balance point is adjusted according to the minimum start-stop power.

2. The method according to claim 1, characterized in that After obtaining the current navigation trip of the hybrid vehicle, the method further includes: Determine whether the navigation destination is consistent with the target charging pile mark position in the navigation map; If so, determine that the navigation destination is the location of the target charging pile.

3. The method according to claim 2, characterized in that The target charging pile is specifically: a private charging pile, or a public charging pile whose historical charging times ratio exceeds a first set ratio threshold.

4. The method according to claim 1, characterized in that If the navigation destination of the current navigation trip is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity setting threshold, determining a first supported mileage that can be supported by the first remaining power, and determining a second supported mileage that can be supported by the second remaining power, specifically includes: If the navigation destination is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than the similarity setting threshold, determining whether the hybrid vehicle is a high-frequency charging vehicle; If the hybrid vehicle is the high-frequency charging vehicle, the first supported mileage that can be supported by the first remaining power is determined, and the second supported mileage that can be supported by the second remaining power is determined.

5. The method according to claim 4, characterized in that The determining whether the hybrid vehicle is a high-frequency charging vehicle specifically includes: Counting the historical pure electric travel ratio and historical fuel consumption of the hybrid vehicle; Determining whether the historical pure electric travel ratio is higher than a second set ratio threshold, and determining whether the historical fuel consumption is lower than a consumption threshold; If both are yes, it is determined that the hybrid vehicle is the high-frequency charging vehicle.

6. The method according to claim 1, characterized in that After adjusting the current SOC balance point according to the minimum start-stop power, the method further includes: Monitoring the navigation destination of the current navigation trip in real time; If the navigation destination changes, the current SOC balance point is adjusted according to the original power.

7. The method according to claim 1, characterized in that The adjusting the current SOC balance point according to the minimum start-stop power includes: The electric quantity of the current SOC balance point is adjusted from the original electric quantity to the minimum start-stop electric quantity.

8. A power battery SOC balance point adjustment system, characterized in that: include: An acquisition unit, used to acquire a current navigation trip of the hybrid vehicle; a determination unit, configured to determine a first supported mileage that can be supported by the first remaining power, and determine a second supported mileage that can be supported by the second remaining power, if the navigation destination of the current navigation trip is the location of the target charging pile, or the driving similarity between the current navigation trip and the actual driving trip is higher than a similarity set threshold; wherein the first remaining power is determined according to an original power corresponding to a current state of charge (SOC) balance point of the power battery, and the second remaining power is determined according to a minimum start-stop power required for starting and stopping the engine; An adjustment unit is used to adjust the current SOC balance point according to the minimum start-stop power if the first supporting mileage is less than the remaining mileage of the current navigation journey and the second supporting mileage is greater than or equal to the remaining mileage of the current navigation journey.

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

10. A hybrid 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 program, the steps of the method according to any one of claims 1 to 7 are implemented.

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