DC / DC power supply management method and system, electronic equipment, medium and power supply

Abstract

The invention relates to the technical field of automatic driving, in particular to a DC / DC power supply management method and system, electronic equipment, a medium and a power supply, and the method comprises the steps: obtaining a driving scene of a vehicle in real time; determining a target subsystem corresponding to the current driving scene according to the operation condition of each subsystem in the historical time period of the current driving scene; enabling the power supply of the target subsystem to meet the first power demand by adjusting the current and voltage output by the DC / DC power supply to the target subsystem; and by adjusting the current and voltage output by the DC / DC power supply to the non-target subsystem, the power supply of the non-target subsystem meets the second power demand. According to the invention, the output voltage and current of the DC / DC power supply are intelligently and dynamically adjusted according to the power demands of different driving scenes, so that the intelligent deployment of the power supply is realized, and the power supply among the subsystems is reasonably distributed and coordinated.

Description

Background Art

[0002] With the rapid development of autonomous driving technology, autonomous vehicles have higher and higher requirements for power systems. In particular, the power requirements of a large number of ECUs (Electronic Control Units), sensors, and computing modules in the vehicle have brought higher challenges to the on-board power management system. Traditional DC / DC (direct current to direct current) power management systems often only focus on the stability of a single power supply, and do not consider the power coordination between different subsystems during the autonomous driving process. Summary of the invention

[0003] In order to overcome the problem that traditional DC / DC power management systems often only focus on the stability of a single power supply and do not consider the problem of power coordination between different subsystems during autonomous driving, the present invention provides a DC / DC power management method, system, electronic device, medium and power supply.

[0004] In a first aspect, in order to solve the above technical problems, the present invention provides an intelligent DC / DC power supply management method, comprising:

[0005] Obtain the vehicle's driving scene in real time;

[0006] Determine the target subsystem corresponding to the current driving scenario according to the operation status of each subsystem in the historical time period of the current driving scenario; wherein the target subsystem includes the subsystem that continuously operates in the current driving scenario;

[0007] By adjusting the current and voltage outputted by the DC / DC power supply to the target subsystem, the power supply of the target subsystem meets the first power demand; wherein the first power demand includes the power supply conditions required for the continuous and stable operation of the target subsystem;

[0008] By adjusting the current and voltage output by the DC / DC power supply to the non-target subsystem, the power supply of the non-target subsystem meets the second power demand; wherein the second power demand includes the power supply conditions required for the non-target subsystem to stop operating or maintain minimum power operation.

[0009] In a second aspect, the present invention provides an intelligent DC / DC power management system, comprising:

[0010] A driving scene acquisition module is used to acquire the driving scene of the vehicle in real time;

[0011] A target subsystem determination module is used to determine the target subsystem corresponding to the current driving scene according to the operation status of each subsystem in the historical time period of the current driving scene; wherein the target subsystem includes the subsystem that continuously operates in the current driving scene;

[0012] A first adjustment module is used to adjust the current and voltage output by the DC / DC power supply to the target subsystem so that the power supply of the target subsystem meets the first power demand; wherein the first power demand includes the power supply conditions required for the continuous and stable operation of the target subsystem;

[0013] The second adjustment module is used to adjust the current and voltage output by the DC / DC power supply to the non-target subsystem so that the power supply of the non-target subsystem meets the second power demand; wherein the second power demand includes the power supply conditions required for the non-target subsystem to stop operating or maintain minimum power operation.

[0014] In a third aspect, the present invention further provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a terminal device, the terminal device executes the steps of an intelligent DC / DC power supply management method as described above.

[0015] In a fourth aspect, the present invention further provides an electronic device, comprising a memory, a processor, and a program stored in the memory and running on the processor, wherein when the processor executes the program, the steps of an intelligent DC / DC power supply management method as described above are implemented.

[0016] In a fifth aspect, the present invention further provides a DC / DC power supply, comprising the DC / DC power supply management system as described above.

[0017] The beneficial effects of the present invention are: obtaining the driving scene of the vehicle in real time, thereby determining the target subsystem that needs to run continuously in the current driving scene, and then adjusting the current and voltage output by the DC / DC power supply to each subsystem, thereby meeting the first power demand of the target subsystem and the second power demand of the non-target subsystem. The present application intelligently and dynamically adjusts the output voltage and current of the DC / DC power supply according to the power requirements of different driving scenes to achieve intelligent allocation of power supply and reasonably allocate and coordinate the power supply between various subsystems. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of a flow chart of an intelligent DC / DC power supply management method according to an embodiment of the present invention;

[0020] Figure 2 The figure is a schematic diagram of the structure of an intelligent DC / DC power management system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following examples are provided to further explain and supplement the present invention and do not constitute any limitation to the present invention.

[0022] A DC / DC power management method, system, electronic device, medium and power supply according to an embodiment of the present invention are described below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, an embodiment of the present invention provides an intelligent DC / DC power supply management method, including:

[0024] S1. Obtain the driving scene of the vehicle in real time.

[0025] S2. Determine a target subsystem corresponding to the current driving scenario according to the operation status of each subsystem in the historical time period of the current driving scenario; wherein the target subsystem includes a subsystem that continuously operates in the current driving scenario.

[0026] S3. Adjust the current and voltage outputted by the DC / DC power supply to the target subsystem so that the power supply of the target subsystem meets the first power demand; wherein the first power demand includes the power supply conditions required for the continuous and stable operation of the target subsystem.

[0027] S4. Adjust the current and voltage output by the DC / DC power supply to the non-target subsystem so that the power supply of the non-target subsystem meets the second power demand; wherein the second power demand includes the power supply conditions required for the non-target subsystem to stop operating or maintain minimum power operation.

[0028] In this embodiment, the driving scene of the vehicle is acquired in real time to determine the target subsystem that needs to run continuously in the current driving scene, and then the current and voltage output by the DC / DC power supply to each subsystem are adjusted to meet the first power demand of the target subsystem and the second power demand of the non-target subsystem. This application intelligently and dynamically adjusts the output voltage and current of the DC / DC power supply according to the power demand of different driving scenes to achieve intelligent allocation of power supply and reasonably allocate and coordinate the power supply between various subsystems.

[0029] In addition, the applicable scenarios of this embodiment include but are not limited to urban transportation, scenic spot tours, etc. Correspondingly, scenarios that require the use of all vehicles that can be controlled by automatic driving are also applicable to this method. Secondly, vehicles that can be controlled by automatic driving include but are not limited to shared cars, shared bicycles, smart rovers, etc.

[0030] The driving scenarios in this embodiment include but are not limited to low-battery driving, high-speed driving, automatic parking, high-temperature environment, and highway driving.

[0031] In this embodiment, the DC / DC power supply adjusts the current and voltage output by the subsystem as follows:

[0032] The voltage and current information of the DC / DC power supply output to each subsystem is collected in real time through the CAN bus. Based on this voltage and current information, the MOSFET of the resistance dummy load connected to the subsystem is turned on or off through the PWM wave control to reduce or increase the current at the load end that needs to be adjusted; or the resistance of the voltage output feedback adjustment resistor is controlled (similarly, the feedback resistance directly affects the output voltage value, but within a certain range); the above process can realize dynamic adjustment of the output current and voltage of the DC / DC power supply to ensure that the power supply of each subsystem operates in an efficient and stable state.

[0033] In this embodiment, continuous and stable operation means that the DC / DC power supply provides a higher power or a maximum power to the subsystem to ensure that the subsystem will not be interrupted due to insufficient power.

[0034] For example: vehicle data records that when the driving scenario is highway driving, in the historical time period, the driver likes to listen to music and use the air conditioner, but rarely uses the radio or cigarette lighter. He prefers more manual driving and basically does not use automatic driving. At this time, it is necessary to increase the power supply to target subsystems such as audio, air conditioning, and power system, and reduce the power supply to non-target subsystems such as perception modules, cigarette lighters, and radios.

[0035] In the present disclosure, all actions regarding the acquisition of signals, information or data are carried out in strict compliance with the relevant data protection laws and policies of the country where they are located, and with the authorization of the corresponding device owner.

[0036] Owner refers to the person or entity that owns or controls the relevant device (which may be a device, system or other tool that can collect data).

[0037] In the field of intelligent connected vehicles, “owners” mainly include:

[0038] (1) Automobile manufacturers: As vehicle hardware and system developers, they control the underlying hardware and software platforms of the vehicle and have the right to manage and control the data generated by vehicle operation, such as driving and fault data.

[0039] (2) Parts suppliers: They provide key components for automobiles and have certain ownership of the data collected and processed by the components, which is used for product optimization and after-sales service, such as data generated by sensors and chips.

[0040] (3) Vehicle owner or user: The actual user of the vehicle, who has the right to decide how and to what extent vehicle data is used, such as whether to share data such as driving trajectory and driving habits, and has the need and right to protect the privacy of his or her own relevant data.

[0041] (4) Service providers: provide software, data analysis and other services, and have the right to use and manage the acquired and processed data under the framework of the agreement, but the ownership usually belongs to other entities.

[0042] Optionally, adjusting the current and voltage outputted by the DC / DC power supply to the target subsystem so that the power supply of the target subsystem meets the first power demand includes:

[0043] Acquire first historical power data of the target subsystem in the current driving scenario;

[0044] Based on the first historical power data, determining a first target power corresponding to the target subsystem, where the first target power is used to maintain continuous and stable operation of the target subsystem;

[0045] By adjusting the current and voltage output by the DC / DC power supply to the target subsystem, the operating power of the target subsystem is increased to a first target power, so that the target subsystem can continue to operate stably.

[0046] In this embodiment, the power management strategy is automatically adjusted according to the driving scenario to ensure that the target subsystem is always in an efficient and stable working state.

[0047] For example:

[0048] (1) When the driving scenario is low-power driving, more power needs to be allocated to the power control system to ensure that the vehicle can at least operate normally and reduce the safety hazards caused by failure of the power control system.

[0049] (2) When the driving scenario is in automatic parking state, the vehicle should require more environmental detection and basically does not need power. At this time, the highest power should be provided to the perception system (sensor).

[0050] (3) When the driving scenario is high-speed or freeway driving, the autonomous driving system requires faster calculation of data and the sampling frequency of sensors such as radar also usually needs to be increased, so power is automatically provided to such important subsystems.

[0051] In this embodiment, the central control module will store all the vehicle operation data in the database for subsequent direct call. For example, the system collects the voltage and current output by the DC / DC power supply of the vehicle to each subsystem in the current driving scenario in real time through the CAN bus, so as to obtain the power required by each subsystem. At this time, the above power will be stored in the database as the first historical power data. When the vehicle enters the same driving scenario later, the corresponding first historical power data can be directly read from the database. The subsequent storage and call methods of the second historical power data are the same as the storage and call methods of the first historical power data, so they are not repeated here.

[0052] Optionally, adjusting the current and voltage outputted by the DC / DC power supply to the non-target subsystem so that the power supply of the non-target subsystem meets the second power demand includes:

[0053] Acquire second historical power data corresponding to the non-target subsystem in the current driving scenario;

[0054] Based on the second historical power data, determining a second target power corresponding to the non-target subsystem; the second target power is used to stop the non-target subsystem from running or maintain the lowest power operation;

[0055] By adjusting the current and voltage output by the DC / DC power supply to the non-target subsystem, the operating power of the non-target subsystem is reduced to the second target power, so that the non-target subsystem stops running or maintains the lowest power operation.

[0056] For example:

[0057] (1) When the driving scenario is low battery, reduce or turn off the functions of subsystems such as audio, radio, screen, and seat heating.

[0058] (2) When the driving scenario is in automatic parking state, the vehicle can reduce the power of other subsystems except the perception-related subsystems.

[0059] (3) When the driving scenario is high-speed driving or highway driving, in addition to the radar sensor and other subsystems that need to provide more power, the power of subsystems such as air conditioning, radio, and screen is reduced.

[0060] (4) When the driving scene is in a high temperature environment, the voltage output can be automatically reduced or the power distribution can be adjusted to avoid overheating while improving the efficiency of power conversion.

[0061] Optionally, the target subsystem power supply meets the first power demand by adjusting the current and voltage output by the DC / DC power supply to the target subsystem; and the non-target subsystem power supply meets the second power demand by adjusting the current and voltage output by the DC / DC power supply to the non-target subsystem, further comprising:

[0062] Acquire power supply information and temperature information in real time; wherein the power supply information includes the voltage and current output by the DC / DC power supply to each subsystem, and the temperature information includes the temperature of each subsystem;

[0063] Comparing the power information of the current driving scenario with the historical power information of the current driving scenario to determine first comparison information;

[0064] comparing the temperature information of the current driving scene with the historical temperature information of the current driving scene to determine second comparison information;

[0065] If the first comparison information and the second comparison information meet the fault condition, it is determined that the DC / DC power supply is faulty, and the system switches to the backup power supply.

[0066] In this embodiment, the operating data of the power supply system is monitored in real time. When a potential fault is detected, a warning is automatically issued and a switch is made to the backup power supply path to avoid further expansion of the fault. At the same time, the vehicle maintenance cost is reduced and the long-term reliability of the vehicle is improved.

[0067] In this embodiment, the data of each voltage sampling module, current sampling module and temperature sensor are collected through CAN bus communication, wherein the voltage sampling module and the current sampling module can be arranged at the connection between the DC / DC power supply and the subsystem, and the temperature sensor is arranged at the subsystem. In addition, a protocol is artificially formulated according to 8 bytes per frame, each byte contains 8 bits, and these 64 binary digits are used to represent a data (voltage, current and temperature), so as to collect corresponding data through CAN bus communication. For example, if the voltage signal is sampled as 5012mv, then this value should be translated into binary as 10011 1001 0100 after collection. If the last two bytes of a frame of CAN communication with an ID of 001 represent voltage, and the remaining bytes do not represent voltage, then the message of this frame is (hexadecimal) 00 00 0000 00 00 00 13 94. Correspondingly, in the same way, reverse parsing is 00 000000 00 00 00 13 The data contained in this frame message 94 can be converted into decimal to obtain the true value of the voltage data, which is 5012mv.

[0068] Optionally, if the first comparison information and the second comparison information meet a fault condition, determining that the DC / DC power supply is faulty and switching to a backup power supply includes:

[0069] If the difference between the power information corresponding to the current driving scenario and the historical power information is greater than or equal to a first threshold, and / or the difference between the temperature information corresponding to the current driving scenario and the historical temperature information is greater than or equal to a second threshold, it is determined that the DC / DC power supply is faulty.

[0070] In this embodiment, the first threshold and the second threshold can be set according to actual conditions.

[0071] In this embodiment, when it is detected that the power module data is far different from the historical data, it is judged that the system may have a fault, and then the early warning is automatically started and switched to the backup power path. This mechanism can reduce the probability of failure and reduce the fault response time, thereby improving the safety and reliability of autonomous driving vehicles.

[0072] Optionally, determining a target subsystem corresponding to the current driving scenario according to the operation status of each subsystem in the historical time period of the current driving scenario further includes:

[0073] Get the current geographic location of the vehicle;

[0074] Based on the operation status of each subsystem in the historical time period of the current driving scene at the current geographical location, the target subsystem corresponding to the current driving scene is determined.

[0075] In this embodiment, power distribution is optimized based on geographic location and route, and energy consumption is reduced by using kinetic energy recovery and load adjustment.

[0076] For example, vehicle data records show that drivers will enter the peak traffic jam at 6:30 every day and will start and stop many times for a long time. So when it is obtained that the driver enters the traffic jam route at 6:30 on the same day, the power supply of the power system should be reduced, unnecessary acceleration should be reduced, and power should be supplied to the perception module first to ensure accurate identification of surrounding vehicles and pedestrians, and to ensure safe operation in complex road conditions such as traffic jams.

[0077] like Figure 2 As shown, the present invention provides an intelligent DC / DC power management system 100, comprising:

[0078] A driving scene acquisition module 101 is used to acquire the driving scene of the vehicle in real time;

[0079] The target subsystem determination module 102 is used to determine the target subsystem corresponding to the current driving scene according to the operation status of each subsystem in the historical time period of the current driving scene; wherein the target subsystem includes the subsystem that continuously operates in the current driving scene;

[0080] The first adjustment module 103 is used to adjust the current and voltage outputted by the DC / DC power supply to the target subsystem so that the power supply of the target subsystem meets the first power demand; wherein the first power demand includes the power supply conditions required for the continuous and stable operation of the target subsystem;

[0081] The second adjustment module 104 is used to adjust the current and voltage output by the DC / DC power supply to the non-target subsystem so that the power supply of the non-target subsystem meets the second power demand; wherein the second power demand includes the power supply conditions required for the non-target subsystem to stop operating or maintain minimum power operation.

[0082] Optionally, the first adjustment module 103 is specifically configured to:

[0083] Acquire first historical power data of the target subsystem in the current driving scenario;

[0084] Based on the first historical power data, determining a first target power corresponding to the target subsystem, where the first target power is used to maintain continuous and stable operation of the target subsystem;

[0085] By adjusting the current and voltage output by the DC / DC power supply to the target subsystem, the operating power of the target subsystem is increased to a first target power, so that the target subsystem can continue to operate stably.

[0086] Optionally, the second adjustment module 104 is specifically configured to:

[0087] Acquire second historical power data corresponding to the non-target subsystem in the current driving scenario;

[0088] Based on the second historical power data, determining a second target power corresponding to the non-target subsystem; the second target power is used to stop the non-target subsystem from running or maintain the lowest power operation;

[0089] By adjusting the current and voltage output by the DC / DC power supply to the non-target subsystem, the operating power of the non-target subsystem is reduced to the second target power, so that the non-target subsystem stops running or maintains the lowest power operation.

[0090] Optionally, the system further includes a fault judgment module, which is specifically used to:

[0091] Acquire power supply information and temperature information in real time; wherein the power supply information includes the voltage and current output by the DC / DC power supply to each subsystem, and the temperature information includes the temperature of each subsystem;

[0092] Comparing the power information of the current driving scenario with the historical power information of the current driving scenario to determine first comparison information;

[0093] comparing the temperature information of the current driving scene with the historical temperature information of the current driving scene to determine second comparison information;

[0094] If the first comparison information and the second comparison information meet the fault condition, it is determined that the DC / DC power supply is faulty, and the system switches to the backup power supply.

[0095] Optionally, the fault judgment module is specifically used to:

[0096] If the difference between the power information corresponding to the current driving scenario and the historical power information is greater than or equal to a first threshold, and / or the difference between the temperature information corresponding to the current driving scenario and the historical temperature information is greater than or equal to a second threshold, it is determined that the DC / DC power supply is faulty.

[0097] Optionally, the target subsystem determination module 102 is specifically configured to:

[0098] Get the current geographic location of the vehicle;

[0099] Based on the operation status of each subsystem in the historical time period of the current driving scene at the current geographical location, the target subsystem corresponding to the current driving scene is determined.

[0100] An embodiment of the present invention further provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a terminal device, the terminal device executes the steps of the above-mentioned intelligent DC / DC power supply management method.

[0101] An embodiment of the present invention further provides an electronic device, including a memory, a processor, and a program stored in the memory and running on the processor. When the processor executes the program, the steps of the above-mentioned intelligent DC / DC power supply management method are implemented.

[0102] An embodiment of the present invention further provides a DC / DC power supply, including an intelligent DC / DC power supply management system as described above.

[0103] Those skilled in the art know that the present invention can be implemented as a system, method or computer program product. Therefore, the present disclosure can be specifically implemented in the following forms, namely: it can be complete hardware, it can be complete software (including firmware, resident software, microcode, etc.), or it can be a combination of hardware and software, generally referred to as "circuit", "module" or "system" herein. In addition, in some embodiments, the present invention can also be implemented in the form of a computer program product in one or more computer-readable media, and the computer-readable medium contains computer-readable program code. Computer-readable storage media can be, for example, but not limited to - electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any combination of the above.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0105] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A DC / DC power supply management method, characterized in that: include: Obtain the vehicle's driving scene in real time; Determine a target subsystem corresponding to the current driving scene according to the operation status of each subsystem in the historical time period of the current driving scene; wherein the target subsystem includes a subsystem that continuously operates in the current driving scene; By adjusting the current and voltage outputted by the DC / DC power supply to the target subsystem, the power supply of the target subsystem meets the first power demand; wherein the first power demand includes the power supply conditions required for the continuous and stable operation of the target subsystem; By adjusting the current and voltage output by the DC / DC power supply to the non-target subsystem, the power supply of the non-target subsystem meets the second power demand; wherein the second power demand includes the power supply conditions required for the non-target subsystem to stop operating or maintain minimum power operation.

2. The method according to claim 1, characterized in that The method adjusts the current and voltage outputted by the DC / DC power supply to the target subsystem so that the power supply of the target subsystem meets the first power demand, including: Acquire first historical power data of the target subsystem in the current driving scenario; Determine a first target power corresponding to the target subsystem based on the first historical power data, where the first target power is used to maintain continuous and stable operation of the target subsystem; By adjusting the current and voltage output by the DC / DC power supply to the target subsystem, the operating power of the target subsystem is increased to the first target power, so that the target subsystem can continue to operate stably.

3. The method according to claim 1, characterized in that The method adjusts the current and voltage outputted by the DC / DC power supply to the non-target subsystem so that the power supply of the non-target subsystem meets the second power demand, including: Acquire second historical power data corresponding to the non-target subsystem in the current driving scenario; Based on the second historical power data, determining a second target power corresponding to the non-target subsystem; the second target power is used to stop the non-target subsystem from running or maintain the lowest power operation; By adjusting the current and voltage outputted by the DC / DC power supply to the non-target subsystem, the operating power of the non-target subsystem is reduced to the second target power, so that the non-target subsystem stops operating or maintains the lowest power operation.

4. The method according to claim 1, characterized in that: The method further includes: Acquire power supply information and temperature information in real time; wherein the power supply information includes the voltage and current output by the DC / DC power supply to each subsystem, and the temperature information includes the temperature of each subsystem; Comparing the power information of the current driving scene with the historical power information of the current driving scene to determine first comparison information; comparing the temperature information of the current driving scene with the historical temperature information of the current driving scene to determine second comparison information; If the first comparison information and the second comparison information meet the fault condition, it is determined that the DC / DC power supply is faulty, and the power supply is switched to the backup power supply.

5. The method according to claim 4, characterized in that If the first comparison information and the second comparison information meet the fault condition, it is determined that the DC / DC power supply has a fault, and the power supply is switched to a backup power supply, including: If the difference between the power information corresponding to the current driving scenario and the historical power information is greater than or equal to a first threshold, and / or the difference between the temperature information corresponding to the current driving scenario and the historical temperature information is greater than or equal to a second threshold, it is determined that the DC / DC power supply is faulty.

6. The method according to claim 1, characterized in that Determining a target subsystem corresponding to the current driving scene according to the operation status of each subsystem in the historical time period of the current driving scene, further comprising: Get the current geographic location of the vehicle; Based on the operation status of each subsystem of the current driving scene in a historical time period at the current geographical location, a target subsystem corresponding to the current driving scene is determined.

7. An intelligent DC / DC power management system, characterized in that: include: A driving scene acquisition module is used to acquire the driving scene of the vehicle in real time; A target subsystem determination module, used to determine the target subsystem corresponding to the current driving scene according to the operation status of each subsystem in the historical time period of the current driving scene; wherein the target subsystem includes a subsystem that continuously operates in the current driving scene; A first adjustment module, configured to adjust the current and voltage outputted by the DC / DC power supply to the target subsystem so that the power supply of the target subsystem meets a first power demand; wherein the first power demand includes the power supply conditions required for the continuous and stable operation of the target subsystem; The second adjustment module is used to adjust the current and voltage output by the DC / DC power supply to the non-target subsystem so that the power supply of the non-target subsystem meets the second power demand; wherein the second power demand includes the power supply conditions required for the non-target subsystem to stop running or maintain minimum power operation.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device executes the steps of an intelligent DC / DC power supply management method as described in any one of claims 1 to 6.

9. An electronic device comprising a memory, a processor, and a program stored in the memory and running on the processor, characterized in that: When the processor executes the program, the steps of an intelligent DC / DC power supply management method as described in any one of claims 1 to 6 are implemented.

10. A DC / DC power supply, comprising the DC / DC power management system according to claim 7.

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