Vehicle control method and device, equipment, storage medium and program product

Abstract

The invention relates to a vehicle control method, device and equipment, a storage medium and a program product, in particular to the technical field of vehicle control. The method comprises the steps that in response to a detected instruction for switching the vehicle from a first driving mode to a second driving mode, whether the electric quantity value of the vehicle at the current moment is lower than a first set value or not can be determined, and if the electric quantity value is lower than the first set value, after the vehicle is switched to the second driving mode, the power limit SOC of the second driving mode is assigned to be the second set value. Wherein the first set value is obtained based on a power limit SOC default value of the second driving mode, and assignment is carried out under the condition that the current electric quantity is lower than the value, so that the situation that the vehicle is subjected to performance limitation such as triggering power limitation due to mode switching can be avoided, and the stability of the vehicle during driving mode switching is ensured; and deterioration of performances such as pure inductance, power and energy consumption is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and particularly to a vehicle control method, device, equipment, storage medium and program product. Background Art

[0002] New energy hybrid vehicles usually have multiple driving modes, such as pure electric mode and hybrid mode. By switching different modes, the vehicle can select a driving method that better suits the current state or user expectations, achieving a balance between energy efficiency and performance.

[0003] However, when a hybrid vehicle switches from one mode to another, there are often problems such as sudden power changes and energy consumption fluctuations, which not only seriously affect the driving experience but also may pose a threat to vehicle safety. Summary of the Invention

[0004] One of the objectives of the present invention is to provide a vehicle control method, device, equipment, storage medium and program product to solve the problem of unstable performance during mode switching of hybrid vehicles.

[0005] To achieve the above objective, the technical solution adopted by the present invention is as follows:

[0006] A vehicle control method, which includes:

[0007] In response to detecting an instruction for the vehicle to switch from a first driving mode to a second driving mode, determine whether the current power value of the vehicle is lower than a first set value, where the first set value is determined based on the default value of the power limit state of charge (SOC) of the second driving mode, and the power limit SOC of the first driving mode is less than the power limit SOC of the second driving mode;

[0008] If it is lower than the first set value, after switching to the second driving mode, assign the power limit SOC of the second driving mode to a second set value, where the second set value is greater than or equal to the default value of the power limit SOC of the first driving mode and less than or equal to the current power value.

[0009] Further, after assigning the power limit SOC of the second driving mode to the second set value, it further includes:

[0010] After the current power value reaches the first set value, restore the power limit SOC of the second driving mode from the second set value to the default value.

[0011] Further, before restoring the power limit SOC of the second driving mode from the second set value to the default value, it further includes:

[0012] Assign the target SOC of the second driving mode to the first set value, and restore the target SOC of the second driving mode from the first set value to the default value after the power value at the current moment reaches the first set value.

[0013] Further, the power-limited SOC includes a power-limited initial SOC and a power-limited cut-off SOC. Assigning the power-limited SOC of the second driving mode to a second set value includes:

[0014] Assign the power-limited initial SOC of the second driving mode to the default value of the power-limited initial SOC of the first driving mode, and assign the power-limited cut-off SOC of the second driving mode to the default value of the power-limited cut-off SOC of the first driving mode.

[0015] Further, it further includes:

[0016] Based on the vehicle speed change of the vehicle, dynamically adjust the value of the power-limited SOC of the second driving mode.

[0017] Further, the first driving mode is a forced pure electric mode, and the second driving mode is other driving modes except the forced pure electric mode;

[0018] And / or, the second set value is the default value of the power-limited SOC of the first driving mode.

[0019] A vehicle control device includes:

[0020] A power determination module, configured to determine whether the power value at the current moment of the vehicle is lower than a first set value in response to an instruction to detect a switch of the vehicle from a first driving mode to a second driving mode. The first set value is determined based on the default value of the power-limited state of charge (SOC) of the second driving mode, and the power-limited SOC of the first driving mode is less than the power-limited SOC of the second driving mode;

[0021] A control module, configured to, when the power value at the current moment is lower than the first set value, after switching to the second driving mode, assign the power-limited SOC of the second driving mode to a second set value, where the second set value is greater than or equal to the default value of the power-limited SOC of the first driving mode and less than or equal to the power value at the current moment.

[0022] An electronic device includes: a processor and a memory communicatively connected to the processor;

[0023] The memory stores computer-executable instructions;

[0024] The processor executes the computer-executable instructions stored in the memory to implement the vehicle control method as described in any one of the above.

[0025] A computer-readable storage medium, comprising: computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement the vehicle control method described in any one of the above.

[0026] A computer program product, comprising a computer program, which when executed by a processor implements the vehicle control method described in any one of the above.

[0027] Advantages of the present invention: By assigning values according to the power-limiting SOC of the switched mode and the current power when the current power is lower than the set value, the vehicle can be prevented from facing performance limitations such as triggering power limitations due to mode switching, ensuring the stability of the vehicle when switching the driving mode, and preventing the deterioration of performance such as pure inductance, power, and energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a flowchart of a vehicle control method provided by an exemplary embodiment of the present invention Figure 1 ;

[0029] Figure 2 is a flowchart of a vehicle control method provided by an exemplary embodiment of the present invention Figure 2 ;

[0030] Figure 3 is a schematic flowchart of a vehicle control process provided by an exemplary embodiment of the present invention;

[0031] Figure 4 is a schematic structural diagram of a vehicle control device provided by an exemplary embodiment of the present invention;

[0032] Figure 5 is a schematic structural diagram of an electronic device provided by an exemplary embodiment of the present invention.

[0033] Through the above-mentioned drawings, specific embodiments of the present invention have been shown, and there will be more detailed descriptions hereinafter. These drawings and text descriptions are not intended to limit the scope of the inventive concept in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The embodiments of the present invention will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, rather than for limiting the protection scope of the present invention.

[0035] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0036] Exemplary embodiments will be described in detail herein, which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0037] The term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, product or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, product or device. Without further limitation, there is no exclusion of additional identical or equivalent elements in the process, method, product or device comprising the said elements. For example, if terms such as first and second are used to denote names, they do not denote any particular order.

[0038] With the rapid development of new energy vehicles, hybrid vehicles have achieved a balance between energy efficiency and performance through a multi-mode drive system. Under different working conditions, the vehicle can dynamically switch the drive mode according to the driving demand (such as pure electric mode, hybrid mode, etc.), and coordinate the operation of the motor and the engine through a power distribution strategy.

[0039] However, during actual driving, when a hybrid vehicle switches from one mode to another, the performance of the vehicle cannot remain stable. For example, when the vehicle exits the forced pure electric mode and switches to other modes, situations such as power limitation and other performance deteriorations often occur, seriously affecting the driving experience and even threatening driving safety in some cases. For example, if the power is insufficient during high-speed driving, the risk of being rear-ended will increase.

[0040] The inventors have found through research that the reason for the above problems is that a hybrid vehicle has multiple power drive modes, and each drive mode has an independent SOC (State Of Charge) setting, resulting in a possible sudden change in the control strategy when the vehicle switches the power drive mode. For example, each power drive mode usually has a power limit SOC, and the power limit SOC represents the critical point at which the vehicle control strategy changes. When the vehicle's battery charge drops to this critical point, the vehicle will limit the power output in this drive mode. The difference in the SOC parameter settings of different drive modes makes it possible for the vehicle to suddenly have a current battery charge lower than the power limit SOC after switching the drive mode. In this case, the operating speed of the range extender is relatively high, the torque is relatively large, and it will also limit the battery discharge capacity, directly affecting the deterioration of performance such as pure inductance, power, and energy consumption after switching. If the power limitation is severe, it will also affect vehicle safety.

[0041] Based on this, a technical concept is proposed. When the vehicle switches from one drive mode to another, if switching to another drive mode will cause the performance of the vehicle such as power to be limited, then reassign the SOC setting of the switched drive mode so that the reassigned power limit SOC is lower than the current battery charge. By reassigning the value, it can be ensured that the vehicle's current battery charge will not face situations where performance limitations such as triggering power limitations are caused by mode switching, ensuring the stability of the vehicle when switching drive modes and preventing the deterioration of performance such as pure inductance, power, and energy consumption.

[0042] The above-mentioned application scenarios are only partial examples, and those skilled in the art can expand the application according to specific requirements and scenarios. The embodiments of the present application do not make specific limitations in this regard. The following will refer to Figures 1 to 3 to describe the vehicle control method according to an exemplary embodiment of the present invention.

[0043] Figure 1 It is a schematic flow chart of a vehicle control method provided for an exemplary embodiment of the present invention. As Figure 1 shown, the method may include:

[0044] Step S101, in response to detecting an instruction for the vehicle to switch from the first drive mode to the second drive mode, determine whether the current battery charge value of the vehicle is lower than a first set value.

[0045] Among them, the first set value is determined based on the default value of the power-limited state of charge (SOC) in the second driving mode. The power-limited SOC in the first driving mode is less than the power-limited SOC in the second driving mode. SOC refers to the state of charge of the battery, which can represent the remaining power of the battery and can be expressed as a percentage (i.e., the ratio of the remaining power to the total capacity of the battery).

[0046] In the embodiments of the present invention, the default value of the power-limited SOC in the second driving mode can be directly used as the first set value, or the result of operating the default value of the power-limited SOC in the second driving mode with a correction value can be used as the first set value.

[0047] For example, if the default value of the power-limited SOC in the second driving mode is 14%, 14% can be directly used as the first set value, and whether the current power of the vehicle is lower than 14% is used as the judgment condition for executing subsequent steps. In other examples, a certain correction value can also be added to 14%, such as adding 2%, and 16% is used as the first set value. This can prevent the current power value of the vehicle from being near the default value of the power-limited SOC in the second driving mode. For example, if the current power value is 15%, although 15% is greater than 14% and will not directly trigger power limitation after switching the driving mode, if the vehicle is in a high-energy consumption scenario such as high-speed driving, the power value will quickly drop from 15% to below 14%, that is, the vehicle may quickly face power limitation after switching to the second driving mode. By adding a correction value to the default value of the power-limited SOC in the second driving mode, making the current power lower than the corrected first set value, the problem of the vehicle quickly facing power limitation after switching modes can be avoided.

[0048] It should be noted that the power-limited SOC in the first driving mode is less than the power-limited SOC in the second driving mode, which means that the default value of the power-limited SOC in the first driving mode is less than the default value of the power-limited SOC in the second driving mode. For example, the default value of the power-limited SOC in the first driving mode is 7%, and the default value of the power-limited SOC in the second driving mode is 14%.

[0049] In the embodiments of the present invention, the driving mode can refer to the power control mode of a hybrid vehicle, such as the forced pure electric mode, the forced hybrid mode, and the intelligent power preservation mode, etc.

[0050] The scenarios for triggering the detection of the instruction for the vehicle to switch from the first driving mode to the second driving mode can include the user actively issuing a switching instruction, the vehicle powering off, or other situations that meet the trigger conditions for driving mode switching.

[0051] Optionally, the first driving mode is a forced pure - electric mode, and the second driving mode is other driving modes except the forced pure - electric mode. For example, the second driving mode can be the main mode of the vehicle, and the main mode can refer to the default driving mode of the vehicle.

[0052] Step S102, if it is lower than the first set value, after switching to the second driving mode, assign the power - limit SOC of the second driving mode to the second set value.

[0053] Wherein, the second set value is greater than or equal to the default value of the power - limit SOC of the first driving mode, and the second set value is less than or equal to the power value at the current moment.

[0054] Taking the vehicle switching from the forced pure - electric mode to the main mode as an example, since the default value of the power - limit SOC of the main mode (assuming this value is 14%) is higher than the default value of the power - limit SOC of the forced pure - electric mode (assuming this value is 7%), if the current power of the vehicle is 10%, the vehicle will not trigger power limit before switching the driving mode, but will trigger power limit after switching to the main mode. For this situation, the power - limit SOC of the main mode can be changed from the default value (i.e., 14%) to the second set value. Among them, the value range of the second set value can be [7%, 10%]. In this way, the power - limit SOC of the main mode will not exceed 10% after modification, and thus will not trigger power limit after switching to the main mode. If the power value at the current moment of the vehicle is higher than the first set value (such as 14%), then even if the mode is switched, power limit will not be triggered, and assignment may not be performed.

[0055] In some possible implementation manners, the second set value is the default value of the power - limit SOC of the first driving mode. Taking the vehicle switching from the forced pure - electric mode to the main mode as an example, the value of the power - limit SOC in the forced pure - electric mode can be directly memorized and assigned to the power - limit SOC in the main mode after switching. By using the default value of the power - limit SOC of the first driving mode as the second set value, the control parameters and processes can be further simplified, and the power - limit SOC before switching can be directly memorized and assigned to the power - limit SOC after switching.

[0056] In the above embodiments, if an instruction to switch the vehicle from the first driving mode to the second driving mode is detected, it can be determined whether the current power value of the vehicle is lower than the first set value. If it is lower than the first set value, after switching to the second driving mode, the power limit SOC of the second driving mode is assigned the second set value. Among them, the first set value is obtained based on the default value of the power limit SOC of the second driving mode. By assigning a value when the current power is lower than this value, the vehicle can be prevented from facing performance limitations such as triggering power limitations due to mode switching, ensuring the stability of the vehicle when switching driving modes and preventing the deterioration of performance such as pure inductance, power, and energy consumption.

[0057] In one embodiment, as Figure 2 shown, after assigning the power limit SOC of the second driving mode the second set value, it further includes:

[0058] Step S201, after the power value at the current moment reaches the first set value, restore the power limit SOC of the second driving mode from the second set value to the default value.

[0059] In the foregoing embodiments, it is proposed that when the vehicle's power is lower than the first set value, the power limit SOC of the second driving mode is assigned a value, so that the power limit SOC in the switched mode of the vehicle changes from the default value to the second set value. It can be understood that a hybrid vehicle can generate electricity through the engine to supply electrical energy to the battery during driving. In addition to the power limit SOC, each driving mode of the hybrid vehicle can also be provided with a target SOC. The role of the target SOC is to increase the power through methods such as engine power generation when the current power value of the vehicle is lower than the target SOC.

[0060] This embodiment further proposes that during the process of increasing the vehicle's power, when the power value reaches the first set value, the power limit SOC of the second driving mode can be restored from the second set value to the default value. For example, the default value of the power limit SOC of the second driving mode is 14%. When the vehicle switches from the first driving mode to the second driving mode and the power value at the time of switching is lower than 14%, the power limit SOC of the second driving mode is assigned 7%. After switching to the second driving mode, the vehicle's power continues to increase. When the power increases to reach 14%, the power limit SOC of the second driving mode can be restored from 7% to 14%. This can restore the relevant SOC of the driving mode of the vehicle to the default value and prevent the vehicle from driving under unconventional settings.

[0061] In some possible implementation manners, after the vehicle assigns the power limit SOC of the second driving mode the second set value, it can periodically obtain the current power value and compare it with the first set value. If it is greater than the first set value, the default setting of the power limit SOC of the second driving mode is restored.

[0062] In some possible implementations, after the vehicle assigns the power limit SOC of the second driving mode to the second set value, it can also assign the target SOC of the second driving mode to the first set value, and after the current power value reaches the first set value, restore the target SOC of the second driving mode from the first set value to the default value. In this way, by using the mechanism that the vehicle itself will charge to the target SOC, by changing the target SOC in the second driving mode to the first set value, when charging to the target SOC, the condition that the current power reaches the first set value is automatically met, without the need to periodically obtain the current power value and repeatedly compare it with the first set value, which can save the vehicle's computing resources. And restoring the target SOC to the default value after the power reaches the first set value will not affect the normal charging task of the vehicle.

[0063] In one embodiment, the power limit SOC includes a power limit initial SOC and a power limit cut-off SOC. Assigning the power limit SOC of the second driving mode to the second set value includes:

[0064] Assigning the power limit initial SOC of the second driving mode to the default value of the power limit initial SOC of the first driving mode, and assigning the power limit cut-off SOC of the second driving mode to the default value of the power limit cut-off SOC of the first driving mode.

[0065] In one embodiment, it further includes: dynamically adjusting the value of the power limit SOC of the second driving mode based on the vehicle speed change.

[0066] In the embodiments of the present invention, the driving scenario of the vehicle can also be considered, and the value of the power limit SOC after switching the mode is dynamically adjusted according to the vehicle speed change. For example, when the current power value of the vehicle is 14%, after switching to the second driving mode, the power limit SOC was originally assigned to 13%. If the vehicle is in a high-speed driving scenario and needs to accelerate frequently, it can be reduced on the basis of the assignment. For example, the power limit SOC can be adjusted from 13% to 10%, to avoid the vehicle's power being limited due to a sharp increase in energy consumption caused by acceleration, which may cause the vehicle's power to quickly drop below the power limit SOC.

[0067] Figure 3 It is a schematic diagram of a vehicle control process provided for an exemplary embodiment of the present invention. In Figure 3 the example shown, the first driving mode is the forced pure electric mode, and the second driving mode is the main mode, and the main mode can be any driving mode other than the forced pure electric mode, such as the intelligent power conservation mode.

[0068] As Figure 3 shown, this process may include:

[0069] Step 1: Determine whether the current mode is the forced pure - electric mode; the vehicle controller can determine by checking the current driving mode; if it is determined that the vehicle is currently in the forced pure - electric mode, proceed to the next step.

[0070] Step 2: Determine whether to exit the forced pure - electric mode; the controller can make a comparison between the current mode and the previous moment. If the previous moment was in the forced pure - electric mode and the current moment is in the main mode, proceed to the next step.

[0071] Step 3: Determine whether the current battery charge is lower than the first set value; if the charge is higher than the first set value (this set value can represent the critical point of the changes in the vehicle's pure inductance, energy consumption, power, etc. after switching to the main mode, and the value can refer to the initial SOC of the power limit in the main mode of the vehicle), then the rotational speed and torque set by the controller are relatively optimal, and the battery discharge capacity will not be restricted. After switching, the vehicle performance change is not obvious. Therefore, if it is higher than the first set value, there is no need to enter this logic and it can end directly; if the charge is lower than the first set value, the rotational speed and torque of the range extender after exiting the forced pure - electric mode are relatively large, and the battery discharge power may be restricted, affecting the performance such as pure inductance, energy consumption, and power; thus, proceed to Step 4.

[0072] Step 4: Assign the initial SOC of power limit and the cut - off SOC of power limit to the corresponding values in the forced pure - electric mode; based on looking up the table, obtain the current ambient temperature, battery temperature, the initial SOC of power limit and the cut - off SOC of power limit in the forced pure - electric mode, and then assign them as the initial SOC of power limit and the cut - off SOC of power limit in the main mode.

[0073] Step 5: Determine whether the current battery charge is higher than the first set value; if the current battery charge is higher than the first set value, the default initial SOC of power limit and the cut - off SOC of power limit in the main mode will not deteriorate the vehicle performance, then proceed to Step 6.

[0074] Step 6: Assign the initial SOC of power limit and the cut - off SOC of power limit to the default values in the current main mode; specifically, based on looking up the table, obtain the current ambient temperature, battery temperature, the default initial SOC of power limit and the cut - off SOC of power limit set in the current main mode, and then output them as the final initial SOC of power limit and the cut - off SOC of power limit, so that the initial SOC of power limit and the cut - off SOC of power limit of the vehicle in the main mode return to the default values of this mode; end this logic.

[0075] When the vehicle is in the forced pure - electric mode, the initial SOC for power limit and the cut - off SOC for power limit are usually lower than those in the main mode. If the vehicle exits the forced pure - electric mode when the current battery level is higher than the initial SOC for power limit in the forced pure - electric mode, it may face the situation that the battery level after exit is lower than the initial SOC for power limit in the main mode or even lower than the cut - off SOC for power limit in the main mode, resulting in a sudden deterioration of the vehicle's performance after switching to the main mode. To solve this problem, in the above - mentioned embodiment, the vehicle control method provided by the present invention is applied. When it is determined that the vehicle exits the forced pure - electric mode, it is further determined whether the current battery level is lower than a first set value (for example, the first set value can be the default value of the initial SOC for power limit in the main mode). In the case of being lower than the first set value, the default values of the forced pure - electric mode are continued to be used as the initial SOC for power limit and the cut - off SOC for power limit after switching, avoiding the situation of performance deterioration, and the initial SOC for power limit and the cut - off SOC for power limit can be changed back to the default values of the main mode after the battery level is higher than the first set value, ensuring the normal driving logic of the vehicle.

[0076] Figure 4 The following is a schematic structural diagram of a vehicle control device provided by an exemplary embodiment of the present invention. As Figure 4 shown, the vehicle control device 400 may include:

[0077] A battery - level determination module 401, configured to determine whether the battery - level value of the vehicle at the current moment is lower than a first set value in response to an instruction for detecting that the vehicle switches from a first driving mode to a second driving mode, where the first set value is determined based on the default value of the state of charge (SOC) for power limit in the second driving mode, and the SOC for power limit in the first driving mode is less than the SOC for power limit in the second driving mode;

[0078] A control module 402, configured to, in the case where the battery - level value at the current moment is lower than the first set value, after switching to the second driving mode, assign the SOC for power limit in the second driving mode to a second set value, where the second set value is greater than or equal to the default value of the SOC for power limit in the first driving mode and less than or equal to the battery - level value at the current moment.

[0079] In one embodiment, the control module 402 is further configured to: after the battery - level value at the current moment reaches the first set value, restore the SOC for power limit in the second driving mode from the second set value to the default value.

[0080] In one embodiment, the control module 402 is further configured to: assign the target SOC in the second driving mode to the first set value, and restore the target SOC in the second driving mode from the first set value to the default value after the battery - level value at the current moment reaches the first set value.

[0081] In one embodiment, the control module 402 is further configured to: assign the initial SOC of the power limit in the second driving mode as the default value of the initial SOC of the power limit in the first driving mode, and assign the cut-off SOC of the power limit in the second driving mode as the default value of the cut-off SOC of the power limit in the first driving mode.

[0082] In one embodiment, the control module 402 is further configured to: dynamically adjust the value of the power limit SOC in the second driving mode based on the change in the vehicle speed.

[0083] The vehicle control device provided in this embodiment is used to execute the technical solutions in any of the foregoing method embodiments, and its implementation principles and technical effects are similar, which will not be elaborated here.

[0084] It should be understood that the above device embodiments are merely illustrative, and the device of the present invention can also be implemented in other ways. For example, the division of units / modules in the above embodiments is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units, modules or components can be combined, or can be integrated into another system, or some features can be ignored or not executed.

[0085] In addition, without special instructions, in each embodiment of the present invention, each functional unit / module can be integrated in one unit / module, or each unit / module can exist physically alone, or two or more units / modules can be integrated together. The above integrated unit / module can be implemented in the form of hardware or in the form of a software program module.

[0086] Figure 5 The structure diagram of an electronic device provided for an exemplary embodiment of the present invention. As Figure 5 shown, the electronic device 50 includes:

[0087] a processor 51, a memory 52, and a communication interface 53;

[0088] The memory 52 is used to store the executable instructions of the processor 51; the executable instructions can be computer execution instructions;

[0089] Wherein, the processor 51 is configured to execute the technical solutions in any of the foregoing method embodiments by executing the executable instructions.

[0090] Optionally, the memory 52 can be either independent or integrated with the processor 51.

[0091] Optionally, when the memory 52 is a device independent of the processor 51, the electronic device 50 may further include:

[0092] The bus 54, the memory 52, and the communication interface 53 are connected to the processor 51 via the bus 54 and complete communication with each other. The communication interface 53 is used to communicate with other devices.

[0093] Optionally, the communication interface 53 can be specifically implemented by a transceiver. The communication interface is used to implement communication between the database access device and other devices (such as clients, read-write libraries, and read-only libraries). The memory may include a random access memory (RAM), and may also include a non-volatile memory, such as at least one disk memory.

[0094] The bus 54 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of simplicity, only one line is shown in the figure, but it does not mean that there is only one bus or one type of bus.

[0095] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0096] This electronic device is used to execute the technical solutions in any of the foregoing method embodiments. The implementation principles and technical effects are similar and will not be elaborated here.

[0097] An embodiment of the present invention further provides a readable storage medium. The readable storage medium can be a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the technical solutions provided in any of the foregoing method embodiments.

[0098] An embodiment of the present invention further provides a computer program product, including a computer program. When the computer program is executed by a processor, it is used to implement the technical solutions provided in any of the foregoing method embodiments.

[0099] Those of ordinary skill in the art will understand that all or part of the steps for implementing the above method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps including those of the above method embodiments; and the aforementioned storage medium includes: various media such as ROM, RAM, magnetic disks, or optical discs that can store program codes.

[0100] In the above embodiments, the descriptions of the various embodiments have their own focuses. For parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0101] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily conceive of other embodiments of the present invention. The present invention is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include well-known common general knowledge or conventional technical means in the technical field not disclosed by the present invention. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the following claims.

[0102] The above embodiments are only preferred embodiments given to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.

Claims

1. A vehicle control method, characterized in that: include: In response to detecting an instruction for switching the vehicle from the first driving mode to the second driving mode, determining whether the current charge value of the vehicle is lower than a first set value, the first set value being determined based on a default value of a power-limited state of charge (SOC) of the second driving mode, the power-limited SOC of the first driving mode being lower than the power-limited SOC of the second driving mode; If it is lower than the first set value, after switching to the second driving mode, the power limit SOC of the second driving mode is assigned to a second set value, the second set value is greater than or equal to the default value of the power limit SOC of the first driving mode, and the second set value is less than or equal to the current power value.

2. The vehicle control method according to claim 1, characterized in that: After assigning the power limit SOC of the second driving mode to the second set value, the method further includes: After the current power value reaches the first set value, the power limit SOC of the second driving mode is restored from the second set value to a default value.

3. The vehicle control method according to claim 2, characterized in that: Before restoring the power limit SOC of the second driving mode from the second set value to a default value, the method further includes: The target SOC of the second driving mode is assigned to the first set value, and after the current power value reaches the first set value, the target SOC of the second driving mode is restored from the first set value to a default value.

4. The vehicle control method according to any one of claims 1 to 3, characterized in that: The power limit SOC includes a power limit initial SOC and a power limit cutoff SOC, and assigning the power limit SOC of the second driving mode to a second set value includes: The power limit initial SOC of the second driving mode is assigned to the default value of the power limit initial SOC of the first driving mode, and the power limit cutoff SOC of the second driving mode is assigned to the default value of the power limit cutoff SOC of the first driving mode.

5. The vehicle control method according to any one of claims 1 to 3, characterized in that: Also includes: Based on the change in vehicle speed, the power limit SOC value of the second driving mode is dynamically adjusted.

6. The vehicle control method according to any one of claims 1 to 3, characterized in that: The first driving mode is a forced pure electric mode, and the second driving mode is a driving mode other than the forced pure electric mode; And / or, the second set value is a default value of the power limit SOC of the first driving mode.

7. A vehicle control device, characterized in that: include: a power determination module, configured to determine, in response to detecting an instruction for switching the vehicle from the first driving mode to the second driving mode, whether the power value of the vehicle at a current moment is lower than a first set value, wherein the first set value is determined based on a default value of a power-limited state of charge (SOC) of the second driving mode, and the power-limited SOC of the first driving mode is lower than the power-limited SOC of the second driving mode; A control module is used to assign a power limit SOC of the second driving mode to a second set value after switching to the second driving mode when the power value at the current moment is lower than the first set value, wherein the second set value is greater than or equal to a default value of the power limit SOC of the first driving mode, and the second set value is less than or equal to the power value at the current moment.

8. An electronic device, characterized in that: include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the method according to any one of claims 1 to 6 when executed by a processor.

10. A computer program product, characterized in that The invention comprises a computer program, which implements the method according to any one of claims 1 to 6 when being executed by a processor.

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