Power control method and device, traffic vehicle and storage medium

Abstract

The embodiment of the invention provides a power control method and device, a traffic vehicle and a storage medium. The method comprises the following steps: acquiring working parameters of a storage battery in a traffic vehicle; determining the working state of the storage battery based on the working parameters of the storage battery; and under the condition that the duration of the storage battery in the discharging state is larger than the first preset duration, the target electric equipment is controlled to enter a limited power mode, and the limited power of the target electric equipment in the limited power mode is smaller than the maximum working power of the target power supply equipment in the normal mode. According to the technical scheme provided by the embodiment of the invention, under the condition that the storage battery is in the discharging state for a long time, the low-voltage electric equipment is controlled to enter the limited power mode, so that the working power of the low-voltage electric equipment is reduced, and the power demand of the whole vehicle is reduced under the extreme power demand scene; the risk of power shortage of the storage battery caused by insufficient rated power of DC-DC is avoided, and extra DC-DC cost rise is avoided.

Description

Technical Field

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

[0002] Due to the cost constraints of the entire vehicle, the rated power selection of the direct current converter (DC-DC) has become increasingly refined, which must both meet the power demand of the entire vehicle and have a small margin.

[0003] However, the overly refined DC-DC rated power cannot adapt to environmental differences. Specifically, when the vehicle is driving in a normal environment, the DC-DC rated power can meet the power demand of the entire vehicle. When the vehicle is driving in extremely cold or hot areas, the power demand of the vehicle increases, and the power demand of the entire vehicle exceeds the rated power of the DC-DC. Summary of the invention

[0004] Embodiments of the present application provide a power control method, device, transportation vehicle, and storage medium.

[0005] In a first aspect, an embodiment of the present application provides a power control method, the method comprising: obtaining operating parameters of a battery in a transportation vehicle; determining the operating state of the battery based on the operating parameters of the battery; and when the battery is in a discharge state for a period longer than a first preset period, controlling a target power-consuming device to enter a power limiting mode, the target power-consuming device being a low-voltage power-consuming device in the transportation vehicle, and the limited power of the target power-consuming device in the power limiting mode being less than the maximum operating power of the target power supply device in normal mode.

[0006] In a second aspect, an embodiment of the present application provides a power control device, which includes: a parameter acquisition module for acquiring the operating parameters of a battery in a transportation vehicle; a state determination module for determining the operating state of the battery based on the operating parameters of the battery; and a power control module for controlling a target power-consuming device to enter a power limiting mode when the battery is in a discharge state for a period longer than a first preset period, wherein the target power-consuming device is a low-voltage power-consuming device in a transportation vehicle, and the limited power of the target power-consuming device in the power limiting mode is less than the maximum operating power of the target power supply device in normal mode.

[0007] In a third aspect, an embodiment of the present application provides a vehicle, comprising: a memory; one or more processors coupled to the memory; one or more programs, wherein one or more applications are stored in the memory and configured to be executed by one or more processors, and the one or more programs are configured to execute the method described in the first aspect.

[0008] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer program instructions are stored. The computer program instructions can be called by a processor to execute the method described in the first aspect.

[0009] In a fifth aspect, an embodiment of the present application provides a computer program product, which, when instructions in the computer program product are executed, is used to implement the method described in the first aspect.

[0010] Compared with the technical solutions provided by related technologies, the technical solutions provided in the embodiments of the present application obtain the operating parameters of the battery during the driving of the transportation vehicle, and detect whether the battery is in a discharge state based on the operating parameters of the battery. If the battery is in a discharge state for a long time, the low-voltage electrical equipment is controlled to enter a power limiting mode to reduce the operating power of the low-voltage electrical equipment. In extreme power demand scenarios, the power demand of the entire vehicle is reduced, avoiding the risk of battery depletion due to insufficient rated power of the DC-DC, and will not bring about additional DC-DC cost increases. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a schematic diagram of the implementation environment provided by the embodiment of the present application.

[0013] Figure 2 This is a system architecture diagram of a transportation vehicle provided in one embodiment of the present application.

[0014] Figure 3 It is a flowchart of a power control method provided by an embodiment of the present application.

[0015] Figure 4 This is a flowchart of a power control method provided by another embodiment of the present application.

[0016] Figure 5 This is a flowchart of a power control method provided by another embodiment of the present application.

[0017] Figure 6 It is a block diagram of a power control device provided by an embodiment of the present application.

[0018] Figure 7 This is a structural block diagram of a transportation vehicle provided in one embodiment of the present application. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0020] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0021] Please refer to Figure 1 , which shows a schematic diagram of an implementation environment provided by an embodiment of the present application, the implementation environment includes a transportation vehicle 100, and the transportation vehicle 100 can be a vehicle, an aircraft, etc. In the embodiment of the present application, only the transportation vehicle 100 is taken as an example for explanation. Specifically, the transportation vehicle 100 is a new energy vehicle.

[0022] Combined with reference Figure 2 , which shows the system architecture of a transportation vehicle 100 provided by an embodiment of the present application, and the transportation vehicle 100 includes a vehicle control unit (VCU), a battery, a DC-DC, an intelligent body controller (IBCM) and low-voltage electrical equipment. Among them, the low-voltage electrical equipment includes a seat ventilation and heating module, a blower and an electronic fan.

[0023] The VCU is connected to the battery, DC-DC, IBCM and low-voltage electrical equipment through buses to achieve data transmission. For example, the battery reports its own operating current and voltage to the VCU, the IBCM reports the power level signal of the transportation vehicle 100 to the VCU, the DC-DC reports its own low-voltage voltage, current and power to the VCU, and the VCU sends a power limit signal and power limit level to the low-voltage electrical equipment.

[0024] In an embodiment of the present application, the VCU obtains the operating parameters of the battery during the driving of the transportation vehicle, and detects whether the battery is in a discharge state based on the operating parameters of the battery. If the battery is in a discharge state for a long time, the low-voltage electrical equipment is controlled to enter a power limiting mode to reduce the operating power of the low-voltage electrical equipment. In extreme power demand scenarios, the power demand of the entire vehicle is reduced, avoiding the risk of battery depletion due to insufficient rated power of the DC-DC, and will not bring about additional DC-DC cost increases.

[0025] Please refer to Figure 3 , which shows a flow chart of a power control method shown in an embodiment of the present application. The method includes the following process.

[0026] S201, obtaining the operating parameters of the battery.

[0027] The operating parameters of the battery include the operating current of the battery and / or the operating voltage of the battery. In some embodiments, the transportation vehicle includes a battery management system, and the battery management system includes a current sensor. The current sensor periodically detects the operating current of the battery and the operating voltage of the battery, and sends the detection data to the VCU. The detection period of the current sensor can be set based on experiments or experience, and the embodiments of the present application are not limited to this. For example, the detection period of the current sensor is 50ms.

[0028] S202: Determine the working state of the battery based on the working parameters of the battery.

[0029] The working state of the battery includes a charging state and a discharging state. Optionally, the VCU determines whether the battery is in a charging state or a discharging state according to the working current of the battery. Specifically, when the working current of the battery is a negative value, it indicates that the battery is in a discharging state, and when the working current of the battery is a positive value, it indicates that the battery is in a charging state.

[0030] S203: When the battery is in a discharging state for a period longer than a first preset period, control the target electrical device to enter a power limiting mode.

[0031] The first preset time length is set according to experiments or experience, and illustratively, the preset time length is 30 minutes.

[0032] The target electrical equipment refers to low-voltage electrical equipment in the vehicle, such as lighting systems, air conditioning and heating systems, auxiliary driving systems (cameras, radars, etc.), electric windows, wipers, multimedia devices, etc. In the embodiment of the present application, only the target electrical equipment is seat ventilation and heating modules, blowers, and electronic fans as examples for explanation.

[0033] In some embodiments, the target power-consuming device can be set by the developer, can be set by the user, or can be set automatically by the transportation vehicle. The following is an explanation of the process of user-defined setting of the target power-consuming device. Optionally, the transportation vehicle provides a setting interface for the power-limiting mode, which includes multiple low-voltage power-consuming devices. The user can select a low-voltage power-consuming device as the target power-consuming device that needs to be power-limited according to his or her own usage requirements.

[0034] The limited power of the target power-consuming device in the limited power mode should be less than its maximum working power in the normal mode. The working power of the target power-consuming device in the limited power mode is less than or equal to the above limited power.

[0035] In some embodiments, the transportation vehicle also obtains the temperature of its own environment, and controls the target electrical equipment to enter a power-limiting mode when the temperature of its own environment is greater than the first temperature or less than the second temperature. The first temperature is greater than the second temperature. For example, the first temperature is 30°C and the second temperature is 0°C. Since the rated power of the DC-DC usually cannot meet the power demand of the entire vehicle in extreme environments, in this embodiment, it is first detected whether the vehicle is in an extreme environment. If the vehicle is in an extreme environment, the power of the target electrical equipment is limited. If the vehicle is not in an extreme environment, the power of the target electrical equipment is not limited, so as to avoid power limiting the target electrical equipment when the rated power of the DC-DC is sufficient.

[0036] In other possible implementations, the transportation vehicle obtains the low-voltage working power of the DC-DC, and controls the target electrical equipment to enter the power-limiting mode when the difference between its low-voltage working power and the rated power is less than a predetermined difference. The predetermined difference is set according to experiments or experience, for example, the predetermined difference is 20W. Furthermore, when the difference between its low-voltage working power and the rated power is less than the predetermined difference for a duration greater than a fourth predetermined duration, the target electrical equipment is controlled to enter the power-limiting mode. The fourth preset duration is set according to experiments or experience, and illustratively, the fourth preset duration is 10 minutes.

[0037] To sum up, the technical solution provided in the embodiment of the present application obtains the operating parameters of the battery during the driving process of the transportation vehicle, and detects whether the battery is in a discharge state based on the operating parameters of the battery. If the battery is in a discharge state for a long time, the low-voltage electrical equipment is controlled to enter a power limiting mode to reduce the operating power of the low-voltage electrical equipment. In extreme power demand scenarios, the power demand of the entire vehicle is reduced, avoiding the risk of battery depletion due to insufficient rated power of the DC-DC, and will not bring about additional DC-DC cost increases.

[0038] Please refer to Figure 4 , which shows a flow chart of a power control method provided by another embodiment of the present application. Figure 3 In the optional embodiment provided in the embodiment, S303 is replaced by S403 to S405. The method includes the following process.

[0039] S401, obtaining the operating parameters of the battery.

[0040] S402: Determine the working state of the battery based on the working parameters of the battery.

[0041] S403: When the time duration of the battery being in the discharge state is greater than a first preset time duration, obtain a power limit level of the target electrical equipment.

[0042] There is a negative correlation between the power limit level and the limit power of the target electrical equipment, that is, the higher the power limit level of the target electrical equipment, the smaller the limit power, and the lower the power limit level of the target electrical equipment, the larger the limit power.

[0043] Optionally, the VCU determines the power limit level of the target electrical equipment in the following manner: the VCU obtains the average discharge power of the battery based on the working parameters of the battery, and determines the power limit level according to the average discharge power of the battery.

[0044] The average discharge power of the battery can be calculated based on the working voltage and working current of the battery. Optionally, the power limit level is positively correlated with the average discharge power of the battery, that is, the greater the average discharge power of the battery, the higher the power limit level; the smaller the average discharge power of the battery, the lower the power limit level.

[0045] In some embodiments, the VCU determines the power limit level based on the first mapping relationship and the average discharge power of the battery, wherein the first mapping relationship includes the relationship between different intervals to which the average discharge power of the battery belongs and different power limit levels. The following table 1 exemplifies the first mapping relationship.

[0046] Power limit level Average discharge power of the battery Level 1 <![CDATA[0<P1≤100]]> Level 2 <![CDATA[100<P1≤200]]> Level 3 <![CDATA[200<P1≤300]]>

[0047] Table-1

[0048] Based on Table 1, it can be seen that the power limit level is divided into three levels, among which level 1 is the lowest and level 3 is the highest. When the average discharge power of the battery is greater than 0 and less than or equal to 100W, the corresponding power limit level is level 1; when the average discharge power of the battery is greater than 100W and less than or equal to 200W, the corresponding power limit level is level 2; when the average discharge power of the battery is greater than 200W and less than or equal to 300W, the corresponding power limit level is level 3.

[0049] S404, obtaining power limiting measures to be adopted by the target electrical equipment under the power limiting level.

[0050] Optionally, the VCU determines the power limiting measures to be adopted by the target power-consuming device at the power limiting level based on the second mapping relationship, and the second mapping relationship includes the power limiting measures adopted by different power-consuming devices at different power limiting levels.

[0051] Exemplarily, when the power limit level is level 1, the seat ventilation and heating module is limited to gear 1, the duty cycle of the blower is limited to 90%, and the duty cycle of the electronic fan is limited to 90%; when the power limit level is level 2, the seat ventilation and heating module is limited to gear 1, the duty cycle of the blower is limited to 70%, and the duty cycle of the electronic fan is limited to 85%; when the power limit level is level 3, the seat ventilation and heating module is limited to gear 1, the duty cycle of the blower is limited to 50%, and the duty cycle of the electronic fan is limited to 80%.

[0052] S405, controlling the target electrical equipment to operate according to power limiting measures.

[0053] The target power-consuming equipment operates in accordance with the above-mentioned power limiting measures, thereby significantly reducing the low-voltage power consumption of the DC-DC. In extreme power demand scenarios, the power demand of the entire vehicle is reduced, avoiding the risk of battery depletion due to insufficient rated power of the DC-DC, and will not bring about additional DC-DC cost increases.

[0054] In some embodiments, when the target power-consuming device enters the power-limiting mode, if an operation instruction for the target power-consuming device is received, the vehicle sends a reminder message, which is used to remind the target power-consuming device of the power-limiting measures taken. For example, when the user adjusts the gear position of the seat ventilation and heating module, the vehicle sends a reminder message "the seat ventilation and heating module is currently adjusted to the first gear at the maximum."

[0055] In some embodiments, when the target power-consuming device enters the power-limited mode, if an operation instruction for the target power-consuming device is received, the transportation vehicle sends an inquiry message to inquire whether to determine whether to operate the target power-consuming device. If a confirmation indication for the inquiry message is received, the target power-consuming device that has received the operation instruction is controlled to exit the power-limited mode, so that the user can use the target power-consuming device normally. Furthermore, while controlling the target power-consuming device that has received the operation instruction to exit the power-limited mode, if the power-limited level of other target power-consuming devices is not the highest level, the power-limited level of other target power-consuming devices is increased, so as to meet the user's usage needs while reducing the power demand of the entire vehicle, avoiding the risk of battery depletion due to insufficient rated power of the DC-DC, and not causing additional DC-DC cost increases.

[0056] In some embodiments, when the power limit level of the target electrical device is not the highest level, if the battery is still in a discharge state and the duration is greater than a second preset duration, the power limit level of the target electrical device is increased.

[0057] The second preset time length is set according to experiments or experience, for example, the second preset time length is 1 minute.

[0058] In one possible implementation, the target power-consuming device gradually increases its power limit level. For example, the power limit level of the target power-consuming device is level 1. If the target power-consuming device enters the power limit mode and the battery is in a discharge state for more than one minute, the target power-consuming device increases the power limit level to level 2.

[0059] In another possible implementation, the VCU obtains the average discharge power of the battery in a specified period of time, and determines the amount of increase in the power limit level according to the average discharge power of the battery in the specified period of time. The specified period of time refers to the period from the time point when the target power-consuming device enters the power limit mode to the current time point. Optionally, if the average discharge power of the battery in the specified period of time is greater than the preset power, the function limit level of the target power-consuming device is directly increased to the highest level; if the average discharge power of the battery in the specified period of time is less than the preset power, the function limit level of the target power-consuming device is increased step by step.

[0060] To sum up, the technical solution provided in the embodiment of the present application determines the power limit level of the target electrical equipment based on the average discharge power of the battery in the discharge state, thereby achieving more refined power control and reducing the power demand of the entire vehicle while meeting the usage requirements.

[0061] Please refer to Figure 5 , which shows a flow chart of a power control method provided by an embodiment of the present application, the method includes the following process.

[0062] S501, obtaining operating parameters of the battery.

[0063] S502: Determine the working state of the battery based on the working parameters of the battery.

[0064] S503: When the battery is in a discharging state for a period longer than a first preset period, control the target electrical device to enter a power limiting mode.

[0065] The target power-consuming device is a low-voltage power-consuming device in a transportation vehicle. The limited power of the target power-consuming device in the limited power mode is less than the maximum working power of the target power supply device in the normal mode.

[0066] S504, obtaining the low voltage working power of the DC converter in the transportation vehicle.

[0067] Optionally, the VCU obtains an operating current and an operating voltage on a low-voltage side of the DC-DC, and calculates a low-voltage operating power of the DC-DC according to the operating current and the operating voltage on the low-voltage side.

[0068] S505: When the duration during which the low-voltage operating power of the DC converter is less than the specified power is greater than a third preset duration, control the target electrical device to exit the power limiting mode.

[0069] The designated power can be determined according to the power limit level. Specifically, before the target power-consuming device is controlled to exit the power limit mode, the designated power is also determined based on the power limit level of the target power-consuming device. The designated power is negatively correlated with the power limit level of the target power-consuming device, that is, the higher the power limit level of the target power-consuming device, the lower the designated power, and the lower the power limit level of the target power-consuming device, the higher the designated power.

[0070] In some embodiments, the VCU determines the specified power according to the second mapping relationship and the power limit level of the target power-consuming device, and the second mapping relationship includes mapping relationships between different power limit levels and different specified powers. The following Table-2 exemplifies the second mapping relationship.

[0071] Power limit level Specified power Level 1 Low voltage rated power of DC-DC - 100W Level 2 Low voltage rated power of DC-DC - 200W Level 3 Low voltage rated power of DC-DC - 300W

[0072] Table-2

[0073] Based on Table-2, it can be seen that, assuming that the rated power of the DC-DC low-voltage side is 1200W, when the power limit level of the target power-consuming equipment is level 1, the specified power is 1200-100=1100W; when the power limit level of the target power-consuming equipment is level 2, the specified power is 1200-200=1000W; when the power limit level of the target power-consuming equipment is level 1, the specified power is 1200-300=900W.

[0074] The third preset time length is set according to experiments or experience, for example, 5 minutes.

[0075] When the low-voltage operating power of the DC converter is greater than the specified power, or when the low-voltage operating power of the DC converter is less than the specified power for a duration less than a third preset duration, the target electrical device is controlled to maintain a power limiting mode.

[0076] S506, when it is monitored that the power gear of the transportation vehicle is switched to a designated gear, the target power-consuming device is controlled to exit the power limiting mode.

[0077] Optionally, the designated gear is OFF. When the user triggers the power gear switch, INCM sends a power gear signal to the VCU, and the VCU monitors whether the power gear of the vehicle is switched to the designated gear according to the power gear signal. When the power gear of the vehicle is switched to OFF, it indicates that the user has no need to drive the vehicle, and the target electrical equipment in the vehicle does not need to continue working, so the power limit mode is exited.

[0078] In other possible implementations, the vehicle also obtains the temperature of its own environment, and when the temperature of its own environment is less than the first temperature and greater than the second temperature, controls the target power-consuming device to exit the power-limiting mode. Since the rated power of the DC-DC usually cannot meet the power demand of the entire vehicle in extreme environments, in this embodiment, after first monitoring that the vehicle has exited the extreme environment, the target power-consuming device is controlled to exit the power-limiting mode, so as to avoid power limitation of the target power-consuming device when the rated power of the DC-DC is sufficient.

[0079] To summarize, the technical solution provided in the embodiment of the present application controls the target electrical equipment to exit the power limiting mode when it is detected that the low-voltage operating power of the DC-DC is less than the specified power, so that the user can use the low-voltage electrical equipment normally.

[0080] Please refer to Figure 6 , which shows a block diagram of a power control device provided by an embodiment of the present application. The power control device includes: a parameter acquisition module 610, a state determination module 620, and a power control module 630.

[0081] The parameter acquisition module 610 is used to acquire the operating parameters of the battery in the transportation vehicle.

[0082] The state determination module 620 is used to determine whether the battery is in a discharging state based on the operating parameters of the battery.

[0083] The power control module 630 is used to control the target power-consuming equipment to enter the limited power mode when the battery is in the discharge state for a period longer than a first preset period. The target power-consuming equipment is a low-voltage power-consuming equipment in a transportation vehicle. The limited power of the target power-consuming equipment in the limited power mode is less than the maximum operating power of the target power supply equipment in the normal mode.

[0084] In some embodiments, the power control module 630 is used to obtain the power limit level of the target power-consuming device; obtain the power limit measures to be adopted by the target power-consuming device at the power limit level; and control the target power-consuming device to operate according to the power limit measures.

[0085] In some embodiments, the power control module 630 is used to obtain the average discharge power of the battery based on the working parameters of the battery; determine the power limit level based on the average discharge power of the battery, wherein the power limit level is positively correlated with the average discharge power of the battery.

[0086] In some embodiments, the power control module 630 is also used to increase the power limit level of the target power device when the target power device is in power limit mode and the power limit level of the target power device is not the highest level, if the battery is still in a discharge state and the duration is greater than a second preset time.

[0087] In some embodiments, the device further includes: a power acquisition module (not shown in the figure). The power acquisition module is used to obtain the low-voltage working power of the DC converter in the transportation vehicle. The power control module 630 is used to control the target power-consuming device to exit the power-limiting mode when the low-voltage working power of the DC converter is less than the specified power for a period longer than a third preset period.

[0088] In some embodiments, the device further includes: a power determination module (not shown in the figure). The power determination module is used to determine the specified power based on the power limit level of the target electrical device, wherein the specified power is negatively correlated with the power limit level of the target electrical device.

[0089] In some embodiments, the power control module 630 is further used to control the target electrical device to exit the power limiting mode when monitoring that the power gear of the transportation vehicle is switched to a specified gear.

[0090] To sum up, the technical solution provided in the embodiment of the present application obtains the operating parameters of the battery during the driving process of the transportation vehicle, and detects whether the battery is in a discharge state based on the operating parameters of the battery. If the battery is in a discharge state for a long time, the low-voltage electrical equipment is controlled to enter a power limiting mode to reduce the operating power of the low-voltage electrical equipment. In extreme power demand scenarios, the power demand of the entire vehicle is reduced, avoiding the risk of battery depletion due to insufficient rated power of the DC-DC, and will not bring about additional DC-DC cost increases.

[0091] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and modules can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0092] In several embodiments provided in the present application, the coupling between modules may be electrical, mechanical or other forms of coupling.

[0093] In addition, each functional module in each embodiment of the present application can be integrated into a processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or software functional modules.

[0094] See also Figure 7, which shows that the embodiment of the present application also provides a transportation vehicle 700, which includes: one or more multi-core processors 710, a memory 720, and one or more applications. Among them, the one or more applications are stored in the memory 720 and are configured to be executed by the one or more multi-core processors 710, and the one or more applications are configured to execute the method described in the above embodiment.

[0095] The multi-core processor 710 may include one or more processing cores. The multi-core processor 710 uses various interfaces and lines to connect various parts of the entire battery management system, and executes various functions and processes data of the battery management system by running or executing instructions, programs, code sets or instruction sets stored in the memory 720, and calling data stored in the memory 720. Optionally, the multi-core processor 710 can be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), and programmable logic array (Programmable Logic Array, PLA). The multi-core processor 710 can integrate one or more combinations of a central multi-core processor 710 (Central Processing Unit, CPU), an image multi-core processor 710 (Graphics Processing Unit, GPU) and a modem. Among them, the CPU mainly processes the operating system, user interface and application programs; the GPU is responsible for rendering and drawing display content; and the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the multi-core processor 710, and may be implemented separately through a communication chip.

[0096] The memory 720 may include a random access memory 720 (Random Access Memory, RAM), and may also include a read-only memory 720 (Read-Only Memory). The memory 720 may be used to store instructions, programs, codes, code sets, or instruction sets. The memory 720 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the various method embodiments described below, etc. The data storage area may also store data created by the traffic vehicle map during use (such as a phone book, audio and video data, chat record data), etc.

[0097] An embodiment of the present application further provides a computer-readable storage medium, in which computer program instructions are stored. The computer program instructions can be called by a processor to execute the method described in the above embodiment.

[0098] The computer-readable storage medium may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read-only memory), an EPROM, a hard disk or a ROM. Optionally, the computer-readable storage medium includes a non-transitory computer-readable storage medium. The computer-readable storage medium has storage space for computer program instructions for executing any method step of the above method. These computer program instructions may be read from or written to one or more computer program products. The computer program instructions may be compressed in an appropriate form.

[0099] The above are only preferred embodiments of the present application, and are not intended to limit the present application in any form. Although the present application has been disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technical personnel in the field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present application. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A power control method, characterized in that: The method comprises: Obtaining the operating parameters of the battery in the transportation vehicle; determining an operating state of the battery based on an operating parameter of the battery; When the battery is in a discharge state for a period longer than a first preset period, the target electrical equipment is controlled to enter a power limiting mode, wherein the target electrical equipment is a low-voltage electrical equipment in the transportation vehicle, and the limited power of the target electrical equipment in the power limiting mode is less than the maximum operating power of the target power supply equipment in the normal mode.

2. The method according to claim 1, characterized in that: The controlling the target electrical device to enter a power limiting mode includes: Obtaining a power limit level of the target electrical equipment; Obtaining the power limiting measures to be adopted by the target electrical equipment under the power limiting level; The target electrical equipment is controlled to operate according to the power limiting measure.

3. The method according to claim 2, characterized in that The determining of the power limit level of the target electrical equipment includes: Acquire the average discharge power of the battery based on the operating parameters of the battery; The power limit level is determined based on the average discharge power of the battery, wherein the power limit level is positively correlated with the average discharge power of the battery.

4. The method according to claim 2, characterized in that: The method further comprises: When the target electrical device is in the power limiting mode and the power limiting level of the target electrical device is not the highest level, if the battery is still in a discharging state and the duration is greater than a second preset duration, the power limiting level of the target electrical device is increased.

5. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: Obtaining the low voltage working power of the DC converter in the transportation vehicle; When the duration during which the low-voltage operating power of the DC converter is less than the specified power is greater than a third preset duration, the target electrical device is controlled to exit the power limiting mode.

6. The method according to claim 5, characterized in that Before controlling the target electrical device to exit the power limiting mode, the method further includes: The designated power is determined based on the power limit level of the target electrical equipment, wherein the designated power is negatively correlated with the power limit level of the target electrical equipment.

7. The method according to any one of claims 1 to 4, characterized in that The method further comprises: When it is detected that the power gear of the transportation vehicle is switched to a designated gear, the target power-consuming device is controlled to exit the power-limiting mode.

8. A power control device, characterized in that: The device comprises: A parameter acquisition module, used to obtain the operating parameters of the battery in the transportation vehicle; A state determination module, used to determine the working state of the battery based on the working parameters of the battery; A power control module is used to control the target power-consuming equipment to enter a power-limiting mode when the battery is in a discharge state for a period longer than a first preset period. The target power-consuming equipment is a low-voltage power-consuming equipment in the transportation vehicle, and the limited power of the target power-consuming equipment in the power-limiting mode is less than the maximum operating power of the target power supply equipment in the normal mode.

9. A transportation vehicle, characterized in that: include: Memory; One or more processors coupled to the memory; One or more programs, wherein the one or more application programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs are configured to execute the method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and the computer program instructions can be called by a processor to execute the method according to any one of claims 1 to 7.

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