Method and system for reducing energy consumption through level-to-level management of power supply of whole vehicle

Abstract

The invention provides a method and a system for reducing energy consumption through vehicle power source level-to-level management. The method comprises the following steps: monitoring working states of a power source conversion module and a power battery; when the power conversion module and the power battery break down during working, a working parameter set of the storage battery is obtained in real time; determining the current energy consumption grade of the whole vehicle according to the working parameter group of the storage battery; according to the current energy consumption level of the whole vehicle, energy consumption degradation control is conducted on the whole vehicle according to a preset energy consumption degradation table of the whole vehicle, the energy consumption level of the whole vehicle is automatically recognized and judged in the scene that a power source conversion module and a power battery break down, and the comfort function energy consumption adaptive to the whole vehicle is automatically adjusted under different energy consumption levels; the power consumption of the storage battery is reduced and the cost is finally reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle power management, and in particular to a method and system for hierarchical management of vehicle power to reduce energy consumption. Background Art

[0002] As the electrification of automobiles continues to increase, the number of electrical loads installed on vehicles is increasing, leading to a significant increase in vehicle energy consumption. Traditional power management systems, which often use power conversion modules to detect that the vehicle's low-voltage power consumption exceeds its maximum design value, will request the power domain controller to downgrade the power domain's high-power devices, affecting the vehicle's driving performance. In addition, existing technologies are unable to dynamically adjust based on battery status, vehicle operating conditions, and load requirements, resulting in significant energy waste. Therefore, a method and system for hierarchical management of vehicle power to reduce energy consumption is urgently needed to address the problems of existing technologies. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art and proposes a method and system for hierarchical management of vehicle power to reduce energy consumption.

[0004] In a first aspect, an embodiment of the present invention provides a method for reducing energy consumption by hierarchical management of vehicle power supplies, comprising:

[0005] Monitor the working status of the power conversion module and power battery;

[0006] When the power conversion module and power battery fail, the battery operating parameter group is obtained in real time;

[0007] Determining a current energy consumption level of the vehicle based on the battery operating parameter group;

[0008] According to the current energy consumption level of the whole vehicle, the energy consumption degradation of the whole vehicle is controlled according to the preset whole vehicle energy consumption degradation table.

[0009] Furthermore, the power conversion module fault includes at least one of a high voltage input open circuit or short circuit to ground fault, a low voltage output short circuit or overcurrent fault, a low voltage output open circuit fault, a low voltage output overtemperature fault and an internal fault of the power conversion module.

[0010] Furthermore, the power battery fault includes at least one of a power battery cell low voltage fault, a power battery cell high voltage fault, a power battery cell short circuit or overload fault, a power battery cell overtemperature fault and a power battery cell open circuit fault.

[0011] Furthermore, the battery operating parameter group includes at least battery SOC, battery temperature, battery voltage and battery current.

[0012] Furthermore, according to the battery operating parameter group, the current energy consumption level of the vehicle is determined, and the specific steps include:

[0013] Determine the energy consumption level of the vehicle and the SOC threshold corresponding to each energy consumption level;

[0014] According to the battery operating parameter group, the SOC threshold corresponding to each energy consumption level is compensated to obtain the compensated SOC threshold. The specific calculation formula includes:

[0015]

[0016] Among them, T is the battery temperature, V is the battery voltage, I is the battery charge and discharge current, I is a positive value for charging current, and a negative value for discharging current. is the calibration coefficient, Different coefficients are determined according to the actual calibration of different vehicle energy consumption levels;

[0017] Match the battery SOC with the compensated SOC threshold to determine the current energy consumption level of the vehicle.

[0018] Furthermore, according to the current energy consumption level of the vehicle, the energy consumption degradation of the vehicle is controlled according to a preset vehicle energy consumption degradation table, and the vehicle energy consumption degradation table includes the switch states corresponding to different functional modules of the vehicle under different energy consumption levels.

[0019] Furthermore, the whole vehicle functional module includes at least a body module, an air conditioning module, a seat module, an entertainment module and a suspension module.

[0020] In a second aspect, an embodiment of the present invention provides a system for reducing energy consumption by hierarchical power management of a vehicle, comprising a power conversion module, a power battery operating status monitoring unit, a battery operating parameter group acquisition unit, an energy consumption level determination unit, and an energy consumption degradation control unit; wherein:

[0021] Power conversion module and power battery working status monitoring unit, used to monitor the working status of the power conversion module and power battery;

[0022] A battery operating parameter group acquisition unit is used to acquire the battery operating parameter group in real time when a failure occurs in the power conversion module and the power battery;

[0023] An energy consumption level determination unit, configured to determine the current energy consumption level of the vehicle based on the battery operating parameter group;

[0024] The energy consumption degradation control unit is used to control the energy consumption degradation of the whole vehicle according to the current energy consumption level of the whole vehicle and the preset whole vehicle energy consumption degradation table.

[0025] In a third aspect, an embodiment of the present invention provides an electronic device, including:

[0026] one or more processors;

[0027] a memory for storing one or more programs;

[0028] When the one or more programs are executed by the one or more processors, the one or more processors implement the method for reducing energy consumption.

[0029] In a fourth aspect, an embodiment of the present invention provides a computer-readable medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in the method for reducing energy consumption are implemented.

[0030] The present invention provides a method and system for reducing energy consumption by hierarchical management of power supply of a whole vehicle, which monitors the working status of the power conversion module and the power battery; when the power conversion module and the power battery fail, the battery working parameter group is obtained in real time; the current energy consumption level of the whole vehicle is determined based on the battery working parameter group; according to the current energy consumption level of the whole vehicle, the energy consumption degradation of the whole vehicle is controlled according to a preset whole vehicle energy consumption degradation table. In the scenario where the power conversion module or the power battery fails, the present invention automatically identifies and determines the energy consumption level of the whole vehicle, and automatically adjusts and adapts the energy consumption of the comfort functions of the whole vehicle at different energy consumption levels, thereby reducing the power consumption of the battery and ultimately reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A flow chart of a method for reducing energy consumption by hierarchical management of vehicle power supply provided by an embodiment of the present invention;

[0032] Figure 2 This is a flowchart of an optional specific implementation method of step S3 in an embodiment of the present invention.

[0033] Figure 3 A structural block diagram of a system for hierarchical management of vehicle power supply to reduce energy consumption provided by an embodiment of the present invention;

[0034] Figure 4 This is a structural block diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] To enable those skilled in the art to better understand the technical solutions of the present invention, exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, including various details of the embodiments of the present invention to facilitate understanding. These details should be considered merely exemplary. Therefore, those skilled in the art should recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0036] In the absence of conflict, the various embodiments of the present invention and the various features therein may be combined with each other.

[0037] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0038] The terms used herein are only used to describe specific embodiments and are not intended to limit the present invention. As used herein, the singular forms "a" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It will also be understood that when the terms "comprising" and / or "made of" are used in this specification, the presence of the features, wholes, steps, operations, elements and / or components is specified, but the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof is not excluded. Similar words such as "connected" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0039] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present invention, and will not be interpreted as having an idealized or overly formal meaning unless expressly defined as such herein.

[0040] In the technical solution of the present invention, the collection, storage, use, processing, transmission, provision and disclosure of user personal information involved are in compliance with the provisions of relevant laws and regulations and do not violate public order and good morals. The use of user data in this technical solution complies with relevant national laws and regulations (for example, the "Information Security Technology Personal Information Security Specification", etc.). For example: corresponding prescribed measures are taken to control access to personal information; the display of personal information is subject to prescribed restrictions; the purpose of using personal information does not exceed the scope of direct or reasonable connection; when using personal information, clear identity reference is eliminated to avoid precise positioning of specific individuals.

[0041] In related technologies, the method of hierarchical management and reduction of vehicle power mainly uses the power conversion module to convert the electrical energy of the high-voltage battery into low-voltage electrical energy to power the vehicle's low-voltage loads (such as lights, instruments, control units, etc.). The power conversion module monitors the output current and voltage in real time and calculates the current power consumption. When it detects that the power consumption exceeds the maximum design value, the power conversion module will send an over-limit signal to the PDCU. The PDCU is the core controller of the vehicle's power domain and is responsible for coordinating and managing various components of the power system, including motors, batteries, power conversion modules, etc. After receiving the over-limit signal from the power conversion module, the PDCU will activate the power consumption management strategy to reduce the power consumption of the entire vehicle. However, the PDCU reduces the power consumption of the entire vehicle by downgrading the functions of high-power-consuming devices to ensure system safety. These measures will also lead to a decline in the vehicle's power performance and affect the vehicle's driving performance.

[0042] In order to solve at least one of the technical problems existing in the above related technologies, the present invention provides a method for reducing energy consumption by hierarchical management of vehicle power supply, such as Figure 1 ,include:

[0043] S100. Monitor the operating status of the power conversion module and the power battery. Specifically, the power battery is used to provide a DC high-voltage 350V power supply to the entire vehicle. The monitoring power conversion module is used to convert the 350V power battery voltage to 12V. When the battery power is low, the power conversion module can charge the battery. Understandably, when the power conversion module and power battery malfunction, power to the battery cannot be supplied. In this case, hierarchical power management is required for the entire vehicle to reduce energy consumption, extend battery life, and significantly improve vehicle safety.

[0044] S200. When a failure occurs in the power conversion module and the power battery, a battery operating parameter group is obtained in real time; in this embodiment, the battery operating parameter group includes at least the battery SOC, battery temperature, battery voltage and battery current.

[0045] In this embodiment, the power conversion module fault includes at least one of a high voltage input open circuit or short circuit to ground fault, a low voltage output short circuit or overcurrent fault, a low voltage output open circuit fault, a low voltage output overtemperature fault and an internal fault of the power conversion module.

[0046] Specifically, the high-voltage input open circuit or short circuit to ground fault of the power conversion module indicates that under working conditions, the high voltage voltage is detected to be lower than a certain threshold (for example: 60V) for 5S (calibrable); the internal system fault of the power conversion module indicates that under working conditions, an internal chip fault is detected and cannot be restored normally; the low-voltage output short circuit / overcurrent fault of the power conversion module indicates that under working conditions, the 12V output current is detected to be greater than a certain threshold (for example: 300A) for 1S (calibrable); the low-voltage output open circuit fault of the power conversion module indicates that under working conditions, the 12V output current is detected to be less than a certain threshold (for example: 0.5A) for 5S (calibrable); the low-voltage output overtemperature fault of the power conversion module indicates that under working conditions, the 12V driver chip temperature is detected to be higher than a certain threshold (for example: 100 degrees Celsius).

[0047] Specifically, a power battery cell low voltage fault indicates that the single cell voltage of the battery cell is detected to be lower than a certain threshold (for example: 1V) for 1S (calibrable); a power battery cell high voltage fault indicates that the single cell voltage of the battery cell is detected to be higher than a certain threshold (for example: 5V) for 1S (calibrable); a power battery cell short circuit / overload fault indicates that the current of the battery cell is detected to be higher than a certain threshold (for example: 5A); a power battery cell overtemperature fault indicates that the temperature of the battery cell is detected to be higher than a certain threshold (for example: 80 degrees Celsius); a power battery cell open circuit fault indicates that the current of the battery cell is detected to be lower than a certain threshold (for example: 0.5A).

[0048] In this embodiment, the battery SOC, battery temperature, battery voltage, and battery current are obtained through the LBMS (Local Battery Management System). The LBMS uses high-precision sensors, local algorithm processing, and reliable communication mechanisms to achieve real-time monitoring and management of the battery SOC, temperature, voltage, and current.

[0049] S300. Determine the current energy consumption level of the vehicle according to the battery operating parameter group; in this embodiment, as Figure 2 , according to the battery operating parameter group, determining the current energy consumption level of the vehicle, the specific steps include:

[0050] S301. Determine the vehicle energy consumption level and the SOC threshold corresponding to each energy consumption level;

[0051] S302. According to the battery operating parameter group, the SOC threshold corresponding to each energy consumption level is compensated to obtain the compensated SOC threshold. The specific calculation formula includes:

[0052]

[0053] Among them, T is the battery temperature, V is the battery voltage, I is the battery charge and discharge current, I is a positive value for charging current, and a negative value for discharging current. is the calibration coefficient, Different coefficients are determined according to the actual calibration of different vehicle energy consumption levels;

[0054] S303. Match the battery SOC with the compensated SOC threshold to determine the current energy consumption level of the vehicle.

[0055] For example, as shown in Table 1, the energy consumption level of the whole vehicle is divided into 5 levels, and the SOC threshold is divided into 50%, 60%, 70%, and 80% according to the 5 energy consumption levels; when the SOC is greater than 80%, the energy consumption level is divided into Level 1; when the SOC is greater than 80%, the energy consumption level is divided into Level 1; when the SOC is less than 80% but greater than 70%, the energy consumption level is divided into Level 2; when the SOC is less than 70% but greater than 60%, the energy consumption level is divided into Level 3; when the SOC is less than 60% but greater than 50%, the energy consumption level is divided into Level 4; when the SOC is less than 50%, the energy consumption level is divided into Level 5.

[0056] Table 1 Definition of vehicle energy consumption level threshold

[0057]

[0058] S400. Based on the current energy consumption level of the vehicle, the vehicle is subjected to energy consumption degradation control according to a preset vehicle energy consumption degradation table. Specifically, in this embodiment, based on the current energy consumption level of the vehicle, the vehicle is subjected to energy consumption degradation control according to a preset vehicle energy consumption degradation table, wherein the vehicle energy consumption degradation table includes the corresponding switch states of different functional modules of the vehicle under different energy consumption levels.

[0059] In some preferred embodiments, as shown in Table 2, the vehicle functional modules include at least a body module, an air conditioning module, a seat module, an entertainment module, and a suspension module. The body module includes functions such as rear defrost, ambient lighting, and steering wheel heating, and is a main module for controlling these functions. It receives function disabling and restriction commands from the VCM for control. The air conditioning module includes at least a blower / compressor module, a main module for controlling functions such as the blower and compressor, and is controlled by function disabling and restriction commands from the VCM for control. The seat module includes at least ventilation / heating / massage modules, a main module for controlling seat ventilation, heating, and massage, and is controlled by function disabling and restriction commands from the VCM for control. The entertainment module includes multimedia volume, a main module for controlling multimedia functions, and is controlled by function disabling and restriction commands from the VCM for control. The suspension module is a main module for controlling functions such as suspension height adjustment, and is controlled by function disabling and restriction commands from the VCM for control. ECUn represents other electrical devices or modules for comfort and entertainment.

[0060] As shown in Table 2, when the battery SOC is high, more vehicle modules are enabled, resulting in a better driving experience. When the battery SOC is low, fewer modules are enabled, allowing for longer driving range. For example, when the battery SOC is 90%, the vehicle reaches Energy Consumption Level 1. At this level, the rear defrost, ambient lighting, heated steering wheel, blower, compressor, seat heating, seat ventilation, seat massage, multimedia volume, and suspension adjustment motor all function, ensuring a comfortable driving experience. When the battery SOC is 40%, the vehicle reaches Energy Consumption Level 5, with only ECUn enabled, ensuring long driving range.

[0061] Figure 2 Definition of vehicle function degradation mapping

[0062]

[0063] This embodiment provides a method and system for reducing energy consumption through hierarchical power management of a whole vehicle, by monitoring the working status of the power conversion module and the power battery; when the power conversion module and the power battery fail, the battery working parameter group is obtained in real time; the current energy consumption level of the whole vehicle is determined based on the battery working parameter group; based on the current energy consumption level of the whole vehicle, the energy consumption degradation of the whole vehicle is controlled according to a preset whole vehicle energy consumption degradation table. In the scenario where the power conversion module or the power battery fails, the present invention automatically identifies and determines the energy consumption level of the whole vehicle, and automatically adjusts and adapts the energy consumption of the comfort functions of the whole vehicle at different energy consumption levels, thereby reducing the power consumption of the battery and ultimately reducing costs.

[0064] Based on the same inventive concept, the embodiment of the present invention also provides a system for reducing energy consumption by hierarchical management of vehicle power supply, which adopts the above-mentioned method for reducing energy consumption, such as Figure 3 , including a power conversion module and a power battery working status monitoring unit, a battery working parameter group acquisition unit, an energy consumption level determination unit and an energy consumption degradation control unit; wherein:

[0065] Power conversion module and power battery working status monitoring unit, used to monitor the working status of the power conversion module and power battery;

[0066] The battery operating parameter group acquisition unit is configured to acquire the battery operating parameter group in real time when a power conversion module and power battery malfunction. The power conversion module malfunction includes at least one of a high-voltage input open circuit or short circuit to ground fault, a low-voltage output short circuit or overcurrent fault, a low-voltage output open circuit fault, a low-voltage output overtemperature fault, and an internal fault. The power battery malfunction includes at least one of a power battery cell low voltage fault, a power battery cell high voltage fault, a power battery cell short circuit or overload fault, a power battery cell overtemperature fault, and a power battery cell open circuit fault.

[0067] The energy consumption level determination unit is used to determine the current energy consumption level of the vehicle based on the battery operating parameter group. Specifically, the current energy consumption level of the vehicle is determined based on the battery operating parameter group. The specific steps include:

[0068] Determine the energy consumption level of the vehicle and the SOC threshold corresponding to each energy consumption level;

[0069] According to the battery operating parameter group, the SOC threshold corresponding to each energy consumption level is compensated to obtain the compensated SOC threshold. The specific calculation formula includes:

[0070]

[0071] Among them, T is the battery temperature, V is the battery voltage, I is the battery charge and discharge current, I is a positive value for charging current, and a negative value for discharging current. is the calibration coefficient, Different coefficients are determined according to the actual calibration of different vehicle energy consumption levels;

[0072] Match the battery SOC with the compensated SOC threshold to determine the current energy consumption level of the vehicle.

[0073] An energy consumption degradation control unit is configured to control energy consumption degradation of the vehicle according to a preset vehicle energy consumption degradation table based on the current vehicle energy consumption level. Specifically, energy consumption degradation is controlled according to a preset vehicle energy consumption degradation table based on the current vehicle energy consumption level. The vehicle energy consumption degradation table includes corresponding switch states of different functional modules of the vehicle under different energy consumption levels.

[0074] Among them, the specific working methods of the power conversion module and the power battery working status monitoring unit, the battery working parameter group acquisition unit, the energy consumption level determination unit and the energy consumption degradation control unit have been recorded in detail in the above-mentioned method for reducing energy consumption, and will not be repeated here in this embodiment.

[0075] Based on the same inventive concept, an embodiment of the present invention further provides an electronic device. FIG4 is a structural block diagram of an electronic device provided by an embodiment of the present invention. Figure 4 As shown, an embodiment of the present invention provides an electronic device including: one or more processors 101, a memory 102, and one or more I / O interfaces 103. The memory 102 stores one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement any of the methods for reducing energy consumption in the above embodiments; the one or more I / O interfaces 103 are connected between the processor and the memory and are configured to implement information exchange between the processor and the memory.

[0076] Among them, the processor 101 is a device with data processing capabilities, including but not limited to a central processing unit (CPU); the memory 102 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically such as SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), and flash memory (FLASH); the I / O interface (read-write interface) 103 is connected between the processor 101 and the memory 102, and can realize information interaction between the processor 101 and the memory 102, including but not limited to a data bus (Bus), etc.

[0077] In some embodiments, the processor 101 , the memory 102 , and the I / O interface 103 are connected to each other via a bus 104 , and further connected to other components of the computing device.

[0078] In some embodiments, the one or more processors 101 include a field programmable gate array.

[0079] An embodiment of the present invention further provides a computer-readable medium. The computer-readable medium stores a computer program, wherein when executed by a processor, the program implements the steps of any of the methods for reducing energy consumption described in the above embodiments. The computer-readable storage medium may be volatile or non-volatile.

[0080] An embodiment of the present invention also provides a computer program product, including computer-readable code, or a non-volatile computer-readable storage medium carrying computer-readable code. When the computer-readable code runs in a processor of an electronic device, the processor in the electronic device executes the above-mentioned method of reducing energy consumption.

[0081] Those skilled in the art will appreciate that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, or appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable storage medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or transient medium).

[0082] As is known to those skilled in the art, the term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information, such as computer-readable program instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), flash memory or other memory technology, portable compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and that can be accessed by a computer. Furthermore, as is known to those skilled in the art, communication media typically embodies computer-readable program instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0083] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to be stored in the computer-readable storage medium in each computing / processing device.

[0084] The computer program instructions for performing the operations of the present invention may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The computer-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, the state information of the computer-readable program instructions is used to personalize an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), so that the electronic circuit can execute the computer-readable program instructions, thereby implementing various aspects of the present invention.

[0085] The computer program product described herein may be implemented in hardware, software, or a combination thereof. In one embodiment, the computer program product is implemented as a computer storage medium. In another embodiment, the computer program product is implemented as a software product, such as a software development kit (SDK).

[0086] Various aspects of the present invention are described herein with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present invention. It should be understood that each block of the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer-readable program instructions.

[0087] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device is generated that implements the functions / actions specified in one or more blocks in the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, where these instructions cause the computer, programmable data processing device, and / or other device to operate in a specific manner. Thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing various aspects of the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0088] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0089] The flow charts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a part of a module, program segment or instruction, and the part of the module, program segment or instruction includes one or more executable instructions for realizing the logical function of the specification. In some alternative implementations, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the function or action of the specification, or can be implemented with a combination of dedicated hardware and computer instructions.

[0090] Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted only in a general illustrative sense and not for purposes of limitation. In some instances, it will be apparent to those skilled in the art that, unless otherwise expressly indicated, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments. Therefore, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the scope of the invention as set forth in the appended claims.

Claims

1. A method for reducing energy consumption by hierarchical management of vehicle power supply, characterized in that: include: Monitor the working status of the power conversion module and power battery; When the power conversion module and the power battery operating status fail, the battery operating parameter group is obtained in real time; Determining a current energy consumption level of the vehicle based on the battery operating parameter group; According to the current energy consumption level of the whole vehicle, the energy consumption degradation of the whole vehicle is controlled according to the preset whole vehicle energy consumption degradation table.

2. The method for reducing energy consumption according to claim 1, characterized in that: The power conversion module fault includes at least one of a high voltage input open circuit or short circuit to ground fault, a low voltage output short circuit or overcurrent fault, a low voltage output open circuit fault, a low voltage output overtemperature fault and an internal fault of the power conversion module.

3. The method for reducing energy consumption according to claim 1, characterized in that: The power battery fault includes at least one of a power battery cell low voltage fault, a power battery cell high voltage fault, a power battery cell short circuit or overload fault, a power battery cell overtemperature fault and a power battery cell open circuit fault.

4. The method for reducing energy consumption according to claim 1, characterized in that: The battery operating parameter group includes at least battery SOC, battery temperature, battery voltage and battery current.

5. The method for reducing energy consumption according to claim 4, characterized in that: Determine the current energy consumption level of the vehicle according to the battery operating parameter group, specifically the steps include: Determine the energy consumption level of the vehicle and the SOC threshold corresponding to each energy consumption level; According to the battery operating parameter group, the SOC threshold corresponding to each energy consumption level is compensated to obtain the compensated SOC threshold. The specific calculation formula includes: Among them, T is the battery temperature, V is the battery voltage, I is the battery charge and discharge current, I is a positive value for charging current, and a negative value for discharging current. is the calibration coefficient, Different coefficients are determined according to the actual calibration of different vehicle energy consumption levels; Match the battery SOC with the compensated SOC threshold to determine the current energy consumption level of the vehicle.

6. The method for reducing energy consumption according to claim 1, characterized in that: According to the current energy consumption level of the vehicle, the energy consumption degradation of the vehicle is controlled according to a preset vehicle energy consumption degradation table. The vehicle energy consumption degradation table includes the switch states corresponding to different functional modules of the vehicle under different energy consumption levels.

7. The method for reducing energy consumption according to claim 6, characterized in that: The whole vehicle functional module includes at least a body module, an air conditioning module, a seat module, an entertainment module and a suspension module.

8. A system for reducing energy consumption by hierarchical management of vehicle power supply, adopting any of the energy consumption reduction methods of claims 1-7, characterized in that: It includes a power conversion module, a power battery working status monitoring unit, a battery working parameter group acquisition unit, an energy consumption level determination unit and an energy consumption degradation control unit; wherein: Power conversion module and power battery working status monitoring unit, used to monitor the working status of the power conversion module and power battery; A battery operating parameter group acquisition unit is used to acquire the battery operating parameter group in real time when a failure occurs in the power conversion module and the power battery; An energy consumption level determination unit, configured to determine the current energy consumption level of the vehicle based on the battery operating parameter group; The energy consumption degradation control unit is used to control the energy consumption degradation of the whole vehicle according to the current energy consumption level of the whole vehicle and the preset whole vehicle energy consumption degradation table.

9. An electronic device, characterized in that: include: one or more processors; a memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 7.

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

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