CN112776663A - Power supply method and device for electric automobile and electronic equipment - Google Patents
Power supply method and device for electric automobile and electronic equipment Download PDFInfo
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- CN112776663A CN112776663A CN202110211871.8A CN202110211871A CN112776663A CN 112776663 A CN112776663 A CN 112776663A CN 202110211871 A CN202110211871 A CN 202110211871A CN 112776663 A CN112776663 A CN 112776663A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The application provides a power supply method and device for an electric automobile and electronic equipment, and relates to the technical field of electric automobiles. The power supply method of the electric automobile comprises the following steps: the vehicle control unit is respectively connected with the first battery pack, the second battery pack and the load circuit. When the vehicle control unit determines that the first battery pack and the second battery pack are in a non-charging state, the vehicle control unit can control the first battery pack to supply power to the load circuit. In the process that the first battery pack supplies power to the load circuit, the vehicle control unit can acquire the state information of the first battery pack. And when the vehicle control unit determines that the first battery pack has a short-circuit fault according to the state information, the vehicle control unit can control the second battery pack to supply power to the load circuit. Therefore, when the first battery pack has a fault, emergency measures can be provided for the user, and convenience is provided for the user to go out.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of electric automobiles, in particular to a power supply method and device for an electric automobile and electronic equipment.
[ background of the invention ]
The electric automobile uses the vehicle-mounted battery pack as a power source, has little pollution to the environment, and has wide development prospect. However, as the sales volume of electric vehicles increases, failures such as short-circuiting of the vehicle-mounted battery pack occur in some cases, leading to thermal runaway of the vehicle-mounted battery pack and spontaneous combustion of the battery pack.
Under the current power supply mode of the electric automobile, when the vehicle-mounted battery pack breaks down, the vehicle cannot be started, and a user does not have emergency measures which can be taken, and can only wait for rescue in situ, so that inconvenience is brought to the user when going out.
[ summary of the invention ]
The embodiment of the application provides a power supply method and device for an electric automobile and electronic equipment, and when a vehicle-mounted battery pack fails, emergency measures can be provided for a user, so that convenience is brought to the user in traveling.
In a first aspect, an embodiment of the present application provides an electric vehicle power supply method, where the method is applied to a vehicle control unit, the vehicle control unit is respectively connected to a first battery pack, a second battery pack, and a load circuit, and the method includes: when the first battery pack and the second battery pack are determined to be in a non-charging state, controlling the first battery pack to supply power to the load circuit; acquiring state information of the first battery pack in the process that the first battery pack supplies power to the load circuit; and when the first battery pack is determined to have short-circuit fault according to the state information, controlling the second battery pack to supply power to the load circuit.
In one possible implementation manner, the load circuit includes a high-voltage load circuit and a low-voltage load circuit; controlling the first battery pack or the second battery pack to supply power to the load circuit, including: controlling the first battery pack or the second battery pack to output a first high voltage to supply power to the high-voltage load circuit; and controlling the first battery pack or the second battery pack to output a second high voltage, and supplying power to the low-voltage load circuit after the second high voltage is subjected to low-voltage conversion.
In one possible implementation manner, the state information of the first battery pack includes temperature data, current data, and voltage data of the first battery pack; determining that the first battery pack has a short-circuit fault according to the state information, including: determining that a short circuit fault occurs in the first battery pack when a combination of one or more of the temperature data, the current data, and the voltage data of the first battery pack is above a set threshold.
In one possible implementation manner, after determining that the first battery pack has the short-circuit fault according to the state information, the method further includes: and controlling a battery water pump to cool the first battery pack.
In one possible implementation manner, in the process that the first battery pack supplies power to the load circuit, the method further includes: receiving an emergency power supply upgrade package sent by a background management end; the emergency power supply upgrading package is sent by the background management end receiving an emergency power supply request from a user; and performing power supply upgrading by operating the emergency power supply upgrading package so as to control the second battery pack to supply power to the load circuit.
In one possible implementation manner, when it is detected that at least one of the first battery pack and the second battery pack enters a charging state, the first battery pack and the second battery pack are controlled to stop supplying power to the load circuit.
In a second aspect, an embodiment of the present application provides an electric vehicle power supply device, including: the first control module is used for controlling the first battery pack to supply power to the load circuit when the first battery pack and the second battery pack are determined to be in a non-charging state; the obtaining module is used for obtaining the state information of the first battery pack in the process that the first battery pack supplies power to the load circuit; and the second control module is used for controlling the second battery pack to supply power to the load circuit when the first battery pack is determined to have the short-circuit fault according to the state information.
In a third aspect, an embodiment of the present application provides an electronic device, including: at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, which when called by the processor are capable of performing the method as described above.
In a fourth aspect, an embodiment of the present application provides an electric vehicle power supply system, including: the system comprises a vehicle control unit, a first battery pack, a second battery pack and a load circuit; the vehicle control unit is respectively connected with the first battery pack, the second battery pack and the load circuit; the vehicle control unit is capable of executing the method.
In a fifth aspect, embodiments of the present application provide a computer-readable storage medium storing computer instructions that cause the computer to perform the method described above.
In the technical scheme, the vehicle control unit is respectively connected with the first battery pack, the second battery pack and the load circuit. When the vehicle control unit determines that the first battery pack and the second battery pack are in a non-charging state, the vehicle control unit can control the first battery pack to supply power to the load circuit. In the process that the first battery pack supplies power to the load circuit, the vehicle control unit can acquire the state information of the first battery pack. And when the vehicle control unit determines that the first battery pack has a short-circuit fault according to the state information, the vehicle control unit can control the second battery pack to supply power to the load circuit. Therefore, when the first battery pack has a fault, emergency measures can be provided for the user, and convenience is provided for the user to go out.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electric vehicle power supply system according to an embodiment of the present application;
fig. 2 is a flowchart of a power supply method for an electric vehicle according to an embodiment of the present application;
fig. 3 is a flowchart of another power supply method for an electric vehicle according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electric vehicle power supply device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
In an embodiment of the present application, a vehicle control unit may be provided, configured to execute the power supply method for an electric vehicle provided in the embodiment of the present application. In an embodiment of the application, the vehicle control unit may be connected to the first battery pack, the second battery pack, and the load circuit, respectively. The first battery pack may be a large battery pack, and the second battery pack may be a small backup battery pack.
Fig. 1 is a schematic structural diagram of an electric vehicle power supply system according to an embodiment of the present application. As shown in fig. 1, an electric vehicle power supply system provided in an embodiment of the present application may include a charging interface, a first battery pack, a second battery pack, a high-voltage load circuit, a low-voltage load circuit, a DC/DC converter, a low-voltage battery, and a vehicle control unit (not shown in fig. 1).
As shown in fig. 1, the charging interface of the electric vehicle is connected to the first battery pack via an IGBT 2. When the charging interface is connected with the charging pile, the vehicle control unit can detect the current electric quantity of the first battery pack through the electric quantity sensor of the first battery pack. If the vehicle control unit detects that the first battery pack is in an unfilled state, the IGBT2 can be controlled to be conducted to charge the first battery pack. The IGBT is an Insulated Gate Bipolar Transistor (IGBT). Correspondingly, the charging interface is also connected with the second battery pack through the IGBT 1. When the charging interface is connected with the charging pile, the vehicle control unit can detect whether the second battery pack is fully charged, and if the second battery pack is not fully charged, the IGBT1 can be controlled to be conducted to charge the second battery pack.
Further, the first battery pack is connected with the high-voltage load circuit through an IGBT4, and when the whole vehicle controller controls the IGBT4 to be turned on, the first battery pack can output a first high voltage to supply power for the high-voltage load circuit. Meanwhile, the first battery pack is also connected with a low-voltage load circuit through a direct current converter DC/DC. The DC/DC converter may convert the second high voltage output from the first battery pack to a low voltage to power a low voltage load circuit. The high-voltage load circuit is also connected with the first battery pack through the IGBT5, and when the electric automobile brakes, electric energy in the high-voltage load circuit can be recovered to the first battery pack through the IGBT 5.
The second battery pack is connected with the high-voltage load circuit through the IGBT3, and when the whole vehicle controller controls the IGBT3 to be conducted, the second battery pack can output the first high voltage to supply power for the high-voltage load circuit. Meanwhile, the second battery pack is also connected with the direct current converter DC/DC through the IGBT6, and the direct current converter DC/DC can convert the second high voltage output by the second battery pack into low voltage to supply power for a low-voltage load circuit.
Further, in the embodiment of the application, the direct current converter DC/DC is also connected with the low-voltage storage battery. The low voltage obtained by the DC/DC conversion of the DC converter can be stored in a low-voltage storage battery, and the low-voltage load circuit is supplied with power through the low-voltage storage battery.
Fig. 2 is a flowchart of an electric vehicle power supply method according to an embodiment of the present application. Based on the connection relationship, the power supply method for the electric vehicle provided by the embodiment of the application can include:
In the embodiment of the application, the load circuit comprises a high-voltage load circuit and a low-voltage load circuit. For convenience of description, the high-voltage load circuit and the low-voltage load circuit are hereinafter collectively referred to as a load circuit.
In the embodiment of the application, the vehicle control unit can detect the connection state between the charging interface and the charging pile. When the charging interface is not connected with the charging pile, the vehicle can be considered to be in a non-charging state. At this time, the vehicle control unit can control the IGBT1, the IGBT2, the IGBT3 and the IGBT6 to turn off, and control the IGBT4 and the IGBT5 to turn on, so as to control the first battery pack to supply power to the load circuit. At this time, if the electric vehicle is braked, the first battery pack can recover electric energy through the IGBT 5.
In the embodiment of the application, in the process that the first battery pack supplies power to the load circuit, the vehicle control unit can acquire state information sent by the battery sensor of the first battery pack in real time. Specifically, temperature data sent by a temperature sensor of the first battery pack, current data sent by a current sensor, and voltage data sent by a voltage sensor may be obtained.
And 103, controlling the second battery pack to supply power to the load circuit when the first battery pack is determined to have the short-circuit fault according to the state information.
In this embodiment, the vehicle control unit may determine the state information of the first battery pack, and if a combination of one or more of the temperature data, the current data, and the voltage data of the first battery pack is higher than a respective set threshold, it may be determined that the first battery pack has a short-circuit fault. At this time, the vehicle control unit may control the IGBT1, the IGBT2, the IGBT4, and the IGBT5 to turn off, and control the IGBT3 and the IGBT6 to turn on, so as to stop the power supply of the first battery pack to the load circuit, and control the second battery pack to supply power to the load circuit. The sizes of the set thresholds corresponding to the temperature data, the current data and the voltage data can be set according to the needs of actual conditions.
In the embodiment of the application, when it is determined that the first battery pack has a short-circuit fault, the vehicle control unit may further control an instrument of the vehicle to display fault information of the first battery pack, so that a user can maintain the vehicle in time.
In the embodiment of the application, when it is determined that the first battery pack has a short-circuit fault, the vehicle control unit may further send fault information of the first battery pack to a thermal management controller of the vehicle. The first battery pack is cooled by the thermal management controller through the battery water pump of the first battery pack, so that spontaneous combustion of the first battery pack due to thermal runaway is prevented.
In the embodiment of the application, the vehicle control unit is respectively connected with the first battery pack, the second battery pack and the load circuit. When the vehicle control unit determines that the first battery pack and the second battery pack are in a non-charging state, the vehicle control unit can control the first battery pack to supply power to the load circuit. In the process that the first battery pack supplies power to the load circuit, the vehicle control unit can acquire the state information of the first battery pack. And when the vehicle control unit determines that the first battery pack has a short-circuit fault according to the state information, the vehicle control unit can control the second battery pack to supply power to the load circuit. Therefore, when the first battery pack has a fault, emergency measures can be provided for the user, and convenience is provided for the user to go out.
In another embodiment of the application, in the process that the first battery pack supplies power to the load circuit, the vehicle control unit may further receive an emergency power supply upgrade pack sent by the background management terminal. Through the received emergency power supply upgrading package, the whole vehicle controller can realize power supply upgrading, and therefore the second battery pack is controlled to supply power to the load circuit. The emergency power supply upgrade package may be sent by the background management end after receiving an emergency power supply request of the user. The background management end may be, for example: automotive remote Service providers (TSPs).
In one particular implementation scenario, for example, the remaining power of the first battery pack is below the first power threshold, and the first battery pack is already unable to power the load circuit. At this time, if the user has not reached the destination yet, there are no charging posts available around. Then, the user may send an emergency power request to the TSP.
After receiving the emergency power supply request of the user, the TSP may send an emergency power supply upgrade packet to the vehicle controller through an Over-the-Air Technology (OTA) to upgrade the vehicle controller. The upgraded vehicle controller can control the IGBT1, the IGBT2, the IGBT4 and the IGBT5 to be turned off, and control the IGBT3 and the IGBT6 to be turned on, so that the power supply of the first battery pack to the load circuit is stopped, and the second battery pack is controlled to supply power to the load circuit. TSP still can control through vehicle control unit and push nearest electric pile that fills to the user, shows the instrument of the nearest electric pile that fills through the vehicle.
In the embodiment of the application, after the first battery pack and the second battery pack are fully charged again, the vehicle control unit can automatically restore to a factory state.
In another embodiment of the present application, a power supply method of an electric vehicle when the vehicle is in a charging state is described.
In the embodiment of the application, as shown in fig. 1, when the vehicle control unit detects that the charging interface is connected with the charging pile, the current electric quantities of the first battery pack and the second battery pack can be detected through electric quantity sensors corresponding to the first battery pack and the second battery pack respectively. If the first battery pack and the second battery pack are detected to be in an unfilled state, the vehicle control unit can control the IGBTs 1 and 2 to be conducted to charge the first battery pack and the second battery pack. Meanwhile, the IGBT3, the IGBT4, the IGBT5 and the IGBT6 are controlled to be turned off, and power supply of the first battery pack and the second battery pack to the load circuit is stopped. Therefore, when the battery pack is in a charging state, the battery pack is saved from outputting high voltage externally.
In this embodiment, when the first battery pack and the second battery pack are in a charging state, the vehicle control unit may respectively acquire state information of the first battery pack and the second battery pack through a battery sensor of the first battery pack and a battery sensor of the second battery pack. When the first battery pack or the second battery pack is judged to have the short-circuit fault, the vehicle control unit can turn off all the IGBTs and enable the thermal management controller to control the battery water pump to cool the battery pack with the short-circuit fault. And meanwhile, fault information of the corresponding battery pack is displayed through a vehicle instrument.
In the embodiment of the application, in the charging process, the vehicle control unit can continuously detect the current electric quantity of the battery pack through the respective electric quantity sensors of the first battery pack and the second battery pack. Because the second battery pack is a small standby battery pack, the second battery pack is fully charged before the first battery pack in the charging process. When the second battery pack is fully charged, the whole vehicle controller can control the IGBT1 to be turned off, and the rest IGBTs are kept unchanged. Until the first battery pack is fully charged, the vehicle control unit may turn off the IGBT 2.
It should be noted that, when any one or both of the first battery pack and the second battery pack enters a charging state, the IGBT3, the IGBT4, the IGBT5, and the IGBT6 may be controlled to turn off, so that the first battery pack and the second battery pack stop supplying power to the load circuit.
In the embodiment of the application, when high voltage is output externally on the whole vehicle, namely the first battery pack or the second battery pack, the low-voltage storage battery can output low voltage externally, so that power is supplied to the low-voltage load circuit. When the high voltage is output under the whole vehicle, namely the first battery pack and the second battery pack stop outputting the high voltage externally, the low-voltage storage battery can continue outputting the low voltage externally to supply power to the low-voltage load circuit, so that low-voltage electric appliances such as a vehicle door, a wiper and the like can still be normally used under the high voltage of the whole vehicle.
In another embodiment of the present application, a specific implementation process is taken as an example to further describe the power supply method for the electric vehicle.
As shown in fig. 3, when the vehicle is in a charging state:
in step 201, the vehicle controller controls the IGBT3, the IGBT4, the IGBT5 and the IGBT6 to turn off, and controls the GBT1 and the IGBT2 to turn on.
In step 203, after receiving a full-charge signal of the second battery pack sent by the electric quantity sensor of the second battery pack, the vehicle control unit controls the GBT1, the IGBT3, the IGBT4, the IGBT5, and the IGBT6 to turn off, and the IGBT2 to turn on.
And 204, detecting whether the first battery pack is fully charged by the vehicle control unit through an electric quantity sensor of the first battery pack. If so, step 205 is performed. If not, step 206 is performed.
In step 205, after receiving the full charge signal of the first battery pack sent by the electric quantity sensor of the first battery pack, the vehicle controller controls the GBT1, the IGBT2, the IGBT3 and the IGBT6 to turn off, and the IGBT4 and the IGBT5 to turn on.
And step 207, controlling all IGBTs to be turned off, and simultaneously controlling the battery water pump to cool the first battery pack.
When the vehicle is in a non-charging state:
in step 301, the vehicle controller controls the IGBT1, the IGBT2, the IGBT3 and the IGBT6 to turn off, and controls the GBT4 and the IGBT5 to turn on.
And step 303, the vehicle control unit controls the IGBT1, the IGBT2, the IGBT4 and the IGBT5 to be turned off, the GBT3 and the IGBT6 to be turned on, and meanwhile, the battery water pump can be controlled to cool the first battery pack.
Fig. 4 is a schematic structural diagram of an electric vehicle power supply device provided in the embodiment of the present application, and the electric vehicle power supply device in the embodiment of the present application may be used as an electric vehicle power supply device to implement the electric vehicle power supply method provided in the embodiment of the present application.
As shown in fig. 4, the electric vehicle power supply device may include: a first control module 51, an acquisition module 52 and a second control module 53.
The first control module 51 may be configured to control the first battery pack to supply power to the load circuit when it is determined that the first battery pack and the second battery pack are in the non-charging state.
The obtaining module 52 may be configured to obtain the status information of the first battery pack in a process that the first battery pack supplies power to the load circuit.
And the second control module 53 is configured to control the second battery pack to supply power to the load circuit when it is determined that the first battery pack has a short-circuit fault according to the state information.
In a specific implementation process, the state information of the first battery pack includes temperature data, current data, and voltage data of the first battery pack. When determining that the first battery pack has a short-circuit fault according to the state information, the second control module 53 is specifically configured to: and when the combination of one or more items of the temperature data, the current data and the voltage data of the first battery pack is judged to be higher than the set threshold value, the first battery pack is determined to have short-circuit fault.
The electric automobile power supply unit that this application embodiment provided still includes: and the third control module 54 is configured to control the battery water pump to cool down the first battery pack after the second control module 53 determines that the first battery pack has a short-circuit fault.
In a specific implementation process, the first control module 51 is further configured to control the first battery pack and the second battery pack to stop supplying power to the load circuit when detecting that at least one of the first battery pack and the second battery pack enters a charging state.
The second control module 53 is further configured to receive an emergency power supply upgrade package sent by the background management terminal during a process of supplying power to the load circuit by the first battery pack, and perform power supply upgrade by operating the emergency power supply upgrade package, so as to control the second battery pack to supply power to the load circuit. The emergency power supply upgrading package is sent by the background management end receiving an emergency power supply request from a user.
In this embodiment, when the first control module 51 determines that the first battery pack and the second battery pack are in the non-charging state, the first battery pack may be controlled to supply power to the load circuit. The obtaining module 52 may obtain the status information of the first battery pack during the process of supplying power to the load circuit by the first battery pack. When the second control module 53 determines that the first battery pack has a short-circuit fault according to the state information, it may control the second battery pack to supply power to the load circuit. Therefore, when the first battery pack has a fault, emergency measures can be provided for the user, and convenience is provided for the user to go out.
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, and as shown in fig. 5, the electronic device may include at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the electric vehicle power supply method provided by the embodiment of the application.
The electronic device may be a power supply device for an electric vehicle, and the embodiment does not limit the specific form of the electronic device.
FIG. 5 illustrates a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the present application. The electronic device shown in fig. 5 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 5, the electronic device is in the form of a general purpose computing device. Components of the electronic device may include, but are not limited to: one or more processors 410, a memory 430, and a communication bus 440 that connects the various system components (including the memory 430 and the processors 410).
Electronic devices typically include a variety of computer system readable media. Such media may be any available media that is accessible by the electronic device and includes both volatile and nonvolatile media, removable and non-removable media.
A program/utility having a set (at least one) of program modules, including but not limited to an operating system, one or more application programs, other program modules, and program data, may be stored in memory 430, each of which examples or some combination may include an implementation of a network environment. The program modules generally perform the functions and/or methodologies of the embodiments described herein.
The electronic device may also communicate with one or more external devices (e.g., keyboard, pointing device, display, etc.), one or more devices that enable a user to interact with the electronic device, and/or any devices (e.g., network card, modem, etc.) that enable the electronic device to communicate with one or more other computing devices. Such communication may occur via communication interface 420. Furthermore, the electronic device may also communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public Network such as the Internet) via a Network adapter (not shown in FIG. 5) that may communicate with other modules of the electronic device via the communication bus 440. It should be appreciated that although not shown in FIG. 5, other hardware and/or software modules may be used in conjunction with the electronic device, including but not limited to: microcode, device drivers, Redundant processing units, external disk drive Arrays, disk array (RAID) systems, tape Drives, and data backup storage systems, among others.
The processor 410 executes various functional applications and data processing by executing programs stored in the memory 430, for example, implementing the power supply method for an electric vehicle provided by the embodiment of the present application.
The embodiment of the application also provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to execute the power supply method for the electric vehicle provided by the embodiment of the application.
The above-described computer-readable storage medium may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), a flash Memory, an optical fiber, a portable compact disc Read Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of Network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. The method for supplying power to the electric automobile is applied to a vehicle control unit, wherein the vehicle control unit is respectively connected with a first battery pack, a second battery pack and a load circuit, and the method comprises the following steps:
when the first battery pack and the second battery pack are determined to be in a non-charging state, controlling the first battery pack to supply power to the load circuit;
acquiring state information of the first battery pack in the process that the first battery pack supplies power to the load circuit;
and when the first battery pack is determined to have short-circuit fault according to the state information, controlling the second battery pack to supply power to the load circuit.
2. The method of claim 1, wherein the load circuit comprises a high voltage load circuit and a low voltage load circuit; controlling the first battery pack or the second battery pack to supply power to the load circuit, including:
controlling the first battery pack or the second battery pack to output a first high voltage to supply power to the high-voltage load circuit;
and controlling the first battery pack or the second battery pack to output a second high voltage, and supplying power to the low-voltage load circuit after the second high voltage is subjected to low-voltage conversion.
3. The method of claim 1, wherein the status information of the first battery pack comprises temperature data, current data, and voltage data of the first battery pack; determining that the first battery pack has a short-circuit fault according to the state information, including:
determining that a short circuit fault occurs in the first battery pack when a combination of one or more of the temperature data, the current data, and the voltage data of the first battery pack is above a set threshold.
4. The method of claim 1, wherein after determining that the first battery pack has a short-circuit fault based on the status information, the method further comprises:
and controlling a battery water pump to cool the first battery pack.
5. The method of claim 1, wherein during the first battery pack powering the load circuit, the method further comprises:
receiving an emergency power supply upgrade package sent by a background management end; the emergency power supply upgrading package is sent by the background management end receiving an emergency power supply request from a user;
and performing power supply upgrading by operating the emergency power supply upgrading package so as to control the second battery pack to supply power to the load circuit.
6. The method of claim 1, further comprising:
and when at least one of the first battery pack and the second battery pack is detected to enter a charging state, controlling the first battery pack and the second battery pack to stop supplying power to the load circuit.
7. An electric vehicle power supply device, characterized by comprising:
the first control module is used for controlling the first battery pack to supply power to the load circuit when the first battery pack and the second battery pack are determined to be in a non-charging state;
the obtaining module is used for obtaining the state information of the first battery pack in the process that the first battery pack supplies power to the load circuit;
and the second control module is used for controlling the second battery pack to supply power to the load circuit when the first battery pack is determined to have the short-circuit fault according to the state information.
8. An electronic device, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 6.
9. An electric vehicle power supply system, characterized in that the system comprises: the system comprises a vehicle control unit, a first battery pack, a second battery pack and a load circuit;
the vehicle control unit is respectively connected with the first battery pack, the second battery pack and the load circuit;
the vehicle control unit is capable of carrying out the method according to one of claims 1 to 6.
10. A computer-readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 6.
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| CN202110211871.8A CN112776663A (en) | 2021-02-25 | 2021-02-25 | Power supply method and device for electric automobile and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110211871.8A CN112776663A (en) | 2021-02-25 | 2021-02-25 | Power supply method and device for electric automobile and electronic equipment |
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| CN112776663A true CN112776663A (en) | 2021-05-11 |
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Application publication date: 20210511 |