CN117242412A

CN117242412A - Method of fault diagnosis and fault diagnosis apparatus

Info

Publication number: CN117242412A
Application number: CN202280029805.1A
Authority: CN
Inventors: 程康; 翟江浪
Original assignee: Contemporary Amperex Energy Service Technology Ltd
Current assignee: Contemporary Amperex Energy Service Technology Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-12-15
Also published as: WO2023206473A1

Abstract

The embodiment of the application provides a fault diagnosis method and fault diagnosis equipment. The method comprises the following steps: after the fault diagnosis device establishes wireless connection with the first electric device, the fault diagnosis device sends a first instruction to the first electric device, wherein the first instruction is used for requesting to read fault information of a first battery on the first electric device; the fault diagnosis equipment receives fault information of a first battery sent by a first electric device based on a first instruction; the fault diagnosis device analyzes the fault information of the first battery and controls an output device of the fault diagnosis device to output the current fault of the first battery to a diagnostician. The method and the fault diagnosis equipment provided by the embodiment of the application can improve the operation convenience of the diagnosis personnel, save the fault diagnosis time and improve the efficiency.

Description

Method of fault diagnosis and fault diagnosis apparatus

Technical Field

The application relates to the technical field of batteries, in particular to a fault diagnosis method and fault diagnosis equipment.

Background

With the development of new energy technology, the application field of the battery is more and more wide, such as providing power for the electric device or supplying power for the electric device. In the electric device, a battery as a power source is the most critical part thereof. Therefore, it is particularly important for fault diagnosis of the battery.

The traditional fault diagnosis operation for the battery on the power utilization device is complicated.

Disclosure of Invention

The embodiment of the application provides a fault diagnosis method and fault diagnosis equipment, which can improve the operation convenience of diagnostic personnel, save the fault diagnosis time and improve the efficiency.

In a first aspect, a method of fault diagnosis is provided, the method comprising: after the fault diagnosis device establishes wireless connection with the first electric device, the fault diagnosis device sends a first instruction to the first electric device, wherein the first instruction is used for requesting to read fault information of a first battery on the first electric device; the fault diagnosis equipment receives fault information of a first battery sent by a first electric device based on a first instruction; the fault diagnosis device analyzes the fault information of the first battery and controls an output device of the fault diagnosis device to output the current fault of the first battery to a diagnostician.

In the embodiment, the fault diagnosis equipment acquires the fault information of the battery on the power utilization device through wireless connection with the power utilization device, and a communication mode of a CAN line is not used any more, so that the operation convenience of a diagnosis person CAN be improved, the fault diagnosis time is saved, and the efficiency is improved.

In one possible implementation, the method further includes: the fault diagnosis apparatus transmits a second instruction to the first electric device, the second instruction being for instructing to clear a fault currently existing in the first battery.

In this embodiment, the failure diagnosis apparatus transmits the second instruction to the first electric device, so that the failure of the first battery currently existing can be cleared quickly.

In one possible implementation, the method further includes: the fault diagnosis equipment acquires a software upgrading version of the first electric device from the cloud platform, wherein the software upgrading version is used for upgrading the software of the first electric device; the fault diagnosis apparatus transmits the software upgrade version to the first electric device to clear a fault currently existing in the first battery.

In this embodiment, the fault diagnosis apparatus may transmit the software upgrade version acquired from the cloud platform to the first electric device, so that the first electric device may upgrade the software inside thereof, and thus may clear the fault from which the first battery is currently located.

In one possible implementation, the method further includes: before the fault diagnosis apparatus disconnects the wireless connection with the first electric device and after the fault diagnosis apparatus establishes the wireless connection with the second electric device, the fault diagnosis apparatus transmits a third instruction to the second electric device, the third instruction being for requesting to read fault information of the second battery on the second electric device.

In this embodiment, since the power consumption device and the fault diagnosis apparatus communicate through the wireless connection, the fault diagnosis apparatus can perform fault diagnosis on a plurality of power consumption devices at the same time and aggregate the diagnosis results. For example, a taxi company can detect faults of a plurality of parked taxi batteries at the same time, and analyze battery states of a plurality of vehicles in a short time, so that fault detection time can be saved to a great extent.

In one possible implementation, the method further includes: the fault diagnosis equipment acquires MAC address information of a first electric device; the fault diagnosis device initiates a Bluetooth connection request to the first electric device according to the MAC address information.

In this embodiment, the fault diagnosis apparatus interacts with the power consumption device through the bluetooth connection, the reliability of data transmission can be ensured, and the maintenance cost can be reduced.

In one possible implementation, the fault diagnosis apparatus obtains MAC address information of the first electrical device, including: the fault diagnosis device obtains the MAC address information from the cloud server.

In this embodiment, the fault diagnosis device may find the MAC address information of the power consumption device at the cloud server, and may initiate a bluetooth connection request to the power consumption device based on the MAC address information, and then may perform information interaction with the power consumption device through bluetooth connection, so as to ensure stability of data transmission and reduce maintenance cost.

In one possible implementation, the fault diagnosis apparatus sends a second instruction to the first electrical device, including: the fault diagnosis apparatus transmits a second instruction to the first electric device according to an input operation of the diagnostician.

In this embodiment, the failure diagnosis apparatus can transmit the second instruction to the first electric device based on the input operation of the diagnostician, so that the invalid instruction transmitted when the failure existing in the first battery is a non-software clear can be avoided.

In one possible implementation, the output device includes a display screen.

In the embodiment, the fault existing in the first battery is displayed to the diagnostic personnel through the display screen, so that the method is convenient and visual.

In a second aspect, there is provided a fault diagnosis apparatus including: a transmitting unit configured to transmit a first instruction to the first electric device after the wireless connection between the failure diagnosis apparatus and the first electric device is established, the first instruction being for requesting to read failure information of the first battery on the first electric device; a receiving unit, configured to receive fault information of a first battery sent by a first electrical device based on a first instruction; a processing unit for resolving the fault information of the first battery,

And controls the output means of the failure diagnosis apparatus to output the failure currently existing in the first battery to the diagnostician.

In one possible implementation, the sending unit is further configured to: a second instruction is sent to the first electrical device, the second instruction being for indicating to clear a fault currently present in the first battery.

In one possible implementation, the processing unit is further configured to: acquiring a software upgrading version of the first electric device from the cloud platform, wherein the software upgrading version is used for upgrading the software of the first electric device; the transmitting unit is further configured to:

the software upgrade version is sent to the first electrical device to clear the first battery of the current fault.

In one possible implementation, the sending unit is further configured to: before the fault diagnosis apparatus disconnects the wireless connection with the first electric device and after the fault diagnosis apparatus establishes the wireless connection with the second electric device, a third instruction is sent to the second electric device according to a third input operation of a diagnostic person, and the third instruction is used for requesting to read fault information of a second battery on the second electric device.

In one possible implementation, the processing unit is further configured to: acquiring MAC address information of a first electric device; the transmitting unit is further configured to: and according to the MAC address information, initiating a Bluetooth connection request to the first electric device.

In one possible implementation, the processing unit is specifically configured to: and acquiring the MAC address information from the cloud server.

In one possible implementation, the sending unit is specifically configured to: and sending a second instruction to the first electric device according to the input operation of the diagnostician.

In one possible implementation, the output device includes a display screen.

In one possible implementation, the fault diagnosis device is a mobile terminal.

In this embodiment, by installing diagnostic software on the mobile terminal, the fault diagnosis of the battery is not limited any more. For example, if the battery failure is enough to cause the electric device to fail to run, that is, the electric device cannot reach the maintenance site, the diagnostic personnel can perform fault diagnosis on the battery of the electric device in a accident manner through the portable mobile terminal provided with the diagnostic software, so that the user experience is greatly improved.

In a third aspect, a fault diagnosis apparatus is provided, the fault diagnosis apparatus comprising a memory for storing instructions and a processor for reading the instructions and executing the method of the first aspect and any one of the possible implementations of the first aspect based on the instructions.

Drawings

Fig. 1 is a schematic diagram of an application scenario disclosed in an embodiment of the present application.

Fig. 2 is a schematic block diagram of a method of fault diagnosis disclosed in an embodiment of the present application.

FIG. 3 is a schematic flow chart of a method of fault diagnosis disclosed in an embodiment of the present application.

Fig. 4 is a schematic block diagram of a fault diagnosis apparatus disclosed in an embodiment of the present application.

Fig. 5 is another schematic block diagram of a fault diagnosis apparatus disclosed in an embodiment of the present application.

Detailed Description

Embodiments of the present application are described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the application and are not intended to limit the scope of the application, i.e., the application is not limited to the embodiments described.

In the description of the present application, it is to be noted that, unless otherwise indicated, the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present application and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error.

The directional terms appearing in the following description are those directions shown in the drawings and do not limit the specific structure of the application. In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application can be understood as appropriate by those of ordinary skill in the art.

Along with the gradual increase of the new energy automobile in market share, the new energy automobile battery is an important part influencing the operation of the automobile, and the current automobile power domain has problems, namely, the automobile battery is required to be subjected to fault detection at first, so that the fault detection frequency of the battery is higher.

The traditional fault diagnosis of the automobile battery needs to use special fault diagnosis equipment, and fault information is read by inserting a CAN wire into an OBD diagnosis interface of the automobile, so that the operation is complicated.

In view of the above, the embodiments of the present application provide a fault diagnosis method and a fault diagnosis device, where the fault diagnosis device obtains fault information of a battery on a vehicle through wireless connection with the vehicle, and no longer uses a communication manner of a CAN line, so that convenience in operation of a diagnostic person CAN be improved, fault diagnosis time CAN be saved, and efficiency CAN be improved.

Fig. 1 shows a schematic diagram of an application scenario of a fault diagnosis method according to an embodiment of the present application. The method involves wireless interaction between the fault diagnosis apparatus 11 and the vehicle 10. And in particular to wireless interaction between the fault diagnosis apparatus 11 and the battery management unit 12 on the vehicle 10. The battery management unit 12 is used to manage the battery 13 on the vehicle 10. For example for controlling the opening and closing of relays in the battery 13. As another example, for collecting the voltage, temperature, current, etc. of the battery 13. The fault diagnosis apparatus 11 is used for performing fault diagnosis on the vehicle 10 so that a diagnostic person can repair the vehicle 10. More specifically, the fault diagnosis apparatus 11 is used for fault diagnosis of the battery 13 on the vehicle 10.

Alternatively, in the embodiment of the present application, the wireless communication between the fault diagnosis apparatus 11 and the vehicle 10 may include, but is not limited to, various manners including bluetooth communication, wiFi communication, zigBee communication, and the like.

Alternatively, a plurality of batteries 13 may be mounted on the vehicle 10, and a first battery management unit may be provided on the vehicle 10, which may be used to manage the plurality of batteries mounted on the vehicle 10, for example, the first battery management unit may be referred to as a master battery management unit (Master Battery Management Unit, MBMU). Each battery 10 may be provided with a second battery management unit, which may be referred to as a slave battery management unit (Slave Battery Management Unit, SBMU), for example. The MBMU can obtain the current value, the cell voltage, the relay state, the power and other states of the battery from the SBMU. The communication mode between the MBMU and the SBMU is not limited to wireless Bluetooth, CAN bus, ethernet, 5G network communication and the like.

In some embodiments, the SBMU may be implemented with a battery management system (Battery Management System, BMS) of the corresponding battery; the MBMU may be implemented by a control module of the battery break unit (Battery Disconnect Unit, BDU) or by a BMS of one of the batteries.

Since the communication is performed between the vehicle 10 and the fault diagnosis apparatus 11 through the wireless connection, the fault diagnosis apparatus 11 can perform wireless communication with a plurality of vehicles 10 at the same time as shown in fig. 1. That is, the fault diagnosis apparatus 11 may perform fault diagnosis on a plurality of vehicles 10 at the same time.

FIG. 2 shows a schematic block diagram of a method 200 of fault diagnosis of an embodiment of the present application. It should be appreciated that the method 200 may be performed by the fault diagnosis apparatus 11 shown in fig. 1. The first electrical device may be a vehicle 10 as shown in fig. 1. Specifically, as shown in FIG. 2, the method 200 includes some or all of the following.

S210, after the fault diagnosis apparatus establishes a wireless connection with the first electric device, the fault diagnosis apparatus transmits a first instruction to the first electric device, the first instruction being for requesting to read fault information of the first battery on the first electric device.

S220, the fault diagnosis apparatus receives the fault information of the first battery, which is transmitted by the first electric device based on the first instruction.

S230, the fault diagnosis device analyzes the fault information of the first battery and controls an output device of the fault diagnosis device to output the current fault of the first battery to a diagnostician.

When the first electrical device arrives at the service location specified by the manufacturer, the fault diagnosis apparatus within the service location may establish a wireless connection with the first electrical device. Such as a bluetooth connection, a WiFi connection, a ZigBee connection, etc. In particular, the fault diagnosis apparatus may establish a wireless connection with a battery management unit (e.g., an MBMU or SBMU) on the powered device. That is, the fault diagnosis apparatus is provided with a wireless communication module, and the battery management unit on the electric device is also provided with a wireless communication module. The fault diagnosis apparatus and the battery management unit on the electric device establish wireless connection through respective wireless communication modules. It should be noted that, in the embodiment of the present application, after the wireless connection is established between the fault diagnosis apparatus and the first electrical device, interaction between the fault diagnosis apparatus and the first electrical device may be achieved through the wireless connection.

After the fault diagnosis apparatus establishes a wireless connection with the first electric device, the fault diagnosis apparatus may transmit a first instruction, i.e., an instruction to read fault information of the first battery, to the first electric device. After the first electrical device receives the first instruction, the first electrical device may send fault information of the first battery on the first electrical device to the fault diagnosis apparatus. That is, the fault diagnosis apparatus may receive fault information of the first battery on the first electric device, which the first electric device transmits based on the first instruction. Further, the fault diagnosis apparatus may parse the fault information of the first battery and control an output device of the fault diagnosis apparatus, for example, a display screen, to output to a diagnostician that the first battery currently exists.

In one embodiment, after the fault diagnosis apparatus establishes a wireless connection with the first electrical device, the fault diagnosis apparatus may autonomously send the first command to the first electrical device. In another embodiment, the diagnostic person may also perform an input operation on the fault diagnosis apparatus after the fault diagnosis apparatus establishes a wireless connection with the first electrical device. For example, the fault diagnosis apparatus has a display screen on which an icon for guiding a diagnostic person to click is displayed, the icon may indicate a first instruction, and the diagnostic person triggers the fault diagnosis apparatus to send the first instruction to the first electric device by a click operation on the icon.

The first battery refers to a battery on the first electric device, and may refer to one battery or a plurality of batteries. When a plurality of batteries are mounted on the first electric device, the first electric device may transmit failure information of all the batteries having a failure to the failure diagnosis apparatus.

Therefore, according to the fault diagnosis method provided by the embodiment of the application, the fault diagnosis equipment obtains the fault information of the battery on the power utilization device through wireless connection with the power utilization device, and a communication mode of a CAN line is not used any more, so that the operation convenience of a diagnosis person CAN be improved, the fault diagnosis time is saved, and the efficiency is improved.

Alternatively, the power device of the embodiment of the application may be a vehicle, and may be a device which is small enough to be a robot, large enough to be powered or supplied by a battery, such as a ship or an airplane. The embodiment of the application does not limit the electric device.

In general, a battery management unit on an electric device monitors the battery state in real time, and when the battery is monitored to fail, the battery management unit can query a failure code table stored in the battery management unit to generate a corresponding failure code, and further, the battery management unit can control a storage unit to store the generated failure code. When the power utilization device arrives at the maintenance site, the fault diagnosis apparatus may read the fault code stored in the storage unit. That is, the fault information in the embodiment of the present application may be a fault code generated in advance by the battery management unit. In other examples, when the power consumption device monitors that the battery fails according to the battery state, the battery management unit may not generate the fault code first, but after the power consumption device arrives at the maintenance site, the battery management unit queries the fault code table stored in the power consumption device to generate the corresponding fault code after receiving the first instruction sent by the fault diagnosis device, and sends the fault code to the fault diagnosis device.

Alternatively, in other embodiments, after the fault diagnosis apparatus establishes a wireless connection with the first electrical device, the first electrical device may also send parameters of the first battery, such as the charge level, voltage, temperature, etc. of the first battery to the fault diagnosis apparatus. The fault diagnosis apparatus may determine that the first battery currently has a fault based on the received parameter information of the first battery. The fault diagnosis apparatus may then control the output means of the fault diagnosis apparatus to output the fault currently existing in the first battery to the diagnostician.

Optionally, in an embodiment of the present application, the method further includes: the fault diagnosis apparatus transmits a second instruction to the first electric device, the second instruction being for instructing to clear a fault currently existing in the first battery.

Faults in batteries are generally classified into two major categories, one that can be cleared by software and one that requires maintenance of the battery. That is, the fault diagnosis apparatus may determine which type the fault currently exists in the first battery belongs to after resolving the fault information of the first battery. If the first type of fault detection device belongs to the first type of fault detection device, the fault diagnosis device can send a second instruction to the first electric device, namely an instruction for clearing the fault existing in the first battery currently.

Also, in one embodiment, the fault diagnosis apparatus may autonomously send the second instruction to the first electric device upon receiving the fault information of the first battery, and the first electric device may clear the fault currently existing in the first battery after determining that the fault currently existing in the first battery is the first type of fault, for example, may clear the fault code stored inside the first electric device.

In yet another embodiment, the fault diagnosis apparatus transmits a second instruction to the first electrical device, including: the fault diagnosis apparatus transmits a second instruction to the first electric device according to an input operation of the diagnostician.

In particular, an icon guiding the diagnostic person to click may be displayed on the display screen of the fault diagnosis apparatus, and the icon may indicate a second instruction, that is, an instruction to clear that the first battery is currently faulty. The diagnostic person triggers the fault diagnosis apparatus to send the second instruction to the first electrical device by a click operation on the icon. The first electrical device, upon receiving the second instruction, may clear the first battery of the fault.

For the second type of battery fault, a diagnostic person is required to perform subjective analysis on the fault existing in the first battery, consult the data and contact the manufacturer technician to repair the first battery.

Optionally, when the diagnostician determines that the fault existing in the first battery is a fault of the second battery, the fault diagnosis device may query a fault case matching the fault of the first battery of the first electric device in the cloud platform according to the operation of the diagnostician, further query case information corresponding to the fault case, and display the case information to the diagnostician through an output device of the fault diagnosis device, so that the diagnostician maintains the first battery.

The diagnostic person may be a worker or a technician at a maintenance station, or may be the driver himself.

Optionally, in an embodiment of the present application, the method 200 further includes: before the fault diagnosis apparatus breaks the wireless connection with the first electrical device, and after the fault diagnosis apparatus establishes the wireless connection with the second electrical device,

The fault diagnosis apparatus transmits a third instruction to the second electricity utilization device, the third instruction being for requesting reading of fault information of the second battery on the second electricity utilization device.

The second electric device is a different electric device than the first electric device, the second battery is a battery on the second electric device, and the second electric device and the first electric device can be the same type of electric device or different types of electric devices, for example, the second electric device and the first electric device are vehicles. It should be appreciated that the interaction between the second electrical device and the fault diagnosis apparatus according to the embodiment of the present application may refer to the interaction between the first electrical device and the fault diagnosis apparatus, and will not be described herein too much for brevity.

Optionally, in an embodiment of the present application, the method further includes: the fault diagnosis equipment acquires MAC address information of a first electric device; the fault diagnosis device initiates a Bluetooth connection request to the first electric device according to the MAC address information.

It should be noted that, after the bluetooth connection is established between the fault diagnosis apparatus and the first electrical device, interaction between the fault diagnosis apparatus and the first electrical device may be achieved through the bluetooth connection.

Optionally, in an embodiment of the present application, the failure diagnosis apparatus acquires MAC address information of the first electrical device, including: the fault diagnosis device obtains the MAC address information from the cloud server.

For example, the first electrical device is a first vehicle, when the fault diagnosis device reaches a maintenance site, the fault diagnosis device may acquire license plate information of the first vehicle through a camera of the fault diagnosis device, search MAC address information matched with the license plate information of the first vehicle at a cloud server, and further initiate a bluetooth connection request to the first vehicle based on the MAC address.

In other embodiments, the fault diagnosis apparatus may acquire the MAC address information of the first electrical device through other systems. For example, the fault diagnosis apparatus may obtain the MAC address information of the power utilization device through the radio frequency identification system, which is not limited by the embodiment of the present application.

Optionally, in an embodiment of the present application, the method 200 further includes: the failure diagnosis apparatus disconnects the wireless connection with the first electric device after receiving the failure information of the first battery or after receiving a failure clearing completion instruction transmitted by the first electric device.

As described above, battery faults may be classified into two types, and if the fault currently existing in the first battery belongs to a fault requiring maintenance of the battery, after the fault diagnosis apparatus presents the fault currently existing in the first battery to the diagnostician or after receiving a fault clearing completion instruction sent by the first electric device, an icon guiding the diagnostician to click may be displayed on a display screen of the fault diagnosis apparatus, the icon indicating disconnection of the wireless connection with the first electric device.

Alternatively, in an embodiment of the present application, the output device may be a display screen. The output device may also be a speaker.

Alternatively, the fault diagnosis device may be a mobile terminal, for example, the fault diagnosis device may be a cellular phone or a tablet computer, or the like. The embodiment of the application can be realized as long as the mobile phone or the tablet personal computer is provided with fault diagnosis software.

Fig. 3 shows a schematic flow chart of a method 300 of fault detection of an embodiment of the application. As shown in fig. 3, the method involves a cloud server, a fault diagnosis device, and various interactions between the MBMU and the SBMU. Specifically, the method 300 may include some or all of the following.

S301, the SBMU acquires parameter information of the battery.

S302, the MBMU receives parameter information of the battery sent by the SBMU.

Alternatively, the parameter information of the battery may be, for example, the amount of electricity of the battery, the voltage of the battery, the temperature of the battery, and the like.

When a plurality of batteries are mounted on the vehicle, each battery has one SMBU, and the MBMU is mounted on the vehicle for centrally controlling the SBMUs of the plurality of batteries. That is, the MBMU may acquire state information of a plurality of batteries transmitted by the plurality of SBMUs, respectively. Alternatively, the vehicle may not have an MBMU, and the function of the MBMU may be implemented by the SBMU of one of the plurality of batteries.

S303, the fault diagnosis apparatus may generate fault information of the battery based on the parameter information of the battery.

S304, when the vehicle arrives at the maintenance site, the failure diagnosis apparatus may acquire license plate information of the vehicle.

Alternatively, the fault diagnosis apparatus may have a camera, and the fault diagnosis apparatus may acquire license plate information of the vehicle through the camera.

S305, the fault diagnosis device can send license plate information of the vehicle to the cloud server so as to search MAC address information matched with the license plate information of the vehicle in the cloud server.

S306, the cloud server can send the queried MAC address information of the vehicle to the fault diagnosis equipment.

S307, the fault diagnosis device can initiate a Bluetooth connection request to the MBMU on the vehicle based on the MAC address information sent by the cloud server.

S308, after the bluetooth connection is established between the fault diagnosis device and the MBMU, the MBMU may send a first instruction, i.e. an instruction to read the battery fault, to the fault diagnosis device through the bluetooth connection.

S309, the fault diagnosis apparatus receives fault information of the battery transmitted by the MBMU based on the first instruction.

S310, the fault diagnosis device may parse the fault information of the battery and output the fault currently existing in the battery.

Alternatively, the fault diagnosis apparatus may play the fault currently existing in the battery to the diagnostician through a display screen or a speaker.

S311, the fault diagnosis device may also send a second instruction to the MBMU, i.e. an instruction to clear the battery fault.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

The method of fault detection of the embodiment of the present application is described in detail above, and the fault diagnosis apparatus of the embodiment of the present application will be described in detail below with reference to fig. 4. The technical features described for the method embodiments apply to the following device embodiments.

Fig. 4 shows a schematic block diagram of a fault diagnosis apparatus 400 of an embodiment of the present application. As shown in fig. 4, the fault diagnosis apparatus 400 includes some or all of the following.

A transmitting unit 410 configured to transmit a first instruction to the first electric device after the wireless connection between the fault diagnosis apparatus and the first electric device is established, the first instruction being used to request reading of fault information of the first battery on the first electric device;

A receiving unit 420, configured to receive fault information of a first battery sent by a first electrical device based on a first instruction;

and the processing unit 430 is configured to parse the fault information of the first battery, and control the output device of the fault diagnosis apparatus to output the fault existing in the first battery to the diagnostician.

Optionally, in an embodiment of the present application, the sending unit 410 is further configured to: a second instruction is sent to the first electrical device, the second instruction being for indicating to clear a fault currently present in the first battery.

Optionally, the processing unit 410 is further configured to: acquiring a software upgrading version of the first electric device from the cloud platform, wherein the software upgrading version is used for upgrading the software of the first electric device; the transmitting unit 410 is further configured to: the software upgrade version is sent to the first electrical device to clear the first battery of the current fault.

Optionally, in an embodiment of the present application, the sending unit 410 is further configured to: before the fault diagnosis apparatus disconnects the wireless connection with the first electric device and after the fault diagnosis apparatus establishes the wireless connection with the second electric device, a third instruction is sent to the second electric device according to a third input operation of a diagnostic person, and the third instruction is used for requesting to read fault information of a second battery on the second electric device.

Optionally, in an embodiment of the present application, the processing unit 430 is further configured to: acquiring MAC address information of a first electric device; the transmitting unit 410 is further configured to: and according to the MAC address information, initiating a Bluetooth connection request to the first electric device.

Optionally, in an embodiment of the present application, the processing unit 430 is specifically configured to: and acquiring the MAC address information from the cloud server.

Optionally, in the embodiment of the present application, the sending unit 410 is specifically configured to: and sending a second instruction to the first electric device according to the input operation of the diagnostician.

Optionally, in an embodiment of the present application, the output device includes a display screen.

Optionally, in an embodiment of the present application, the fault diagnosis apparatus is a mobile terminal.

For example, the mobile terminal may be a cell phone, tablet computer, or other removable device.

In this embodiment, by installing diagnostic software on the mobile terminal, the fault diagnosis of the battery is not limited any more. For example, if the battery failure is sufficient to cause the vehicle to fail to travel, that is, the vehicle cannot reach the maintenance site, the diagnostic personnel can perform fault diagnosis on the battery of the vehicle in a sudden manner through the portable mobile terminal provided with the diagnostic software, so that the user experience is greatly improved.

Fig. 5 shows a schematic block diagram of a fault diagnosis apparatus 500 of an embodiment of the present application. As shown in fig. 5, the fault diagnosis apparatus 500 includes a processor 510 and a memory 520, wherein the memory 520 is used to store instructions, and the processor 510 is used to read the instructions and execute the methods of the foregoing various embodiments of the present application based on the instructions.

Wherein the memory 520 may be a separate device from the processor 510 or may be integrated into the processor 510.

Optionally, as shown in fig. 5, the fault diagnosis apparatus 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other apparatuses. In particular, information or data may be transmitted to other devices or information or data transmitted by other devices may be received.

The embodiment of the application also provides a computer storage medium for storing a computer program for executing the method of the various embodiments of the application.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to the fault diagnosis apparatus in the embodiment of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the fault diagnosis apparatus in each method of the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the fault diagnosis apparatus in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the fault diagnosis apparatus in each method of the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the fault diagnosis apparatus in the embodiment of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the fault diagnosis apparatus in each method of the embodiment of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of fault diagnosis, comprising:

after a wireless connection is established between a fault diagnosis device and a first electric device, the fault diagnosis device sends a first instruction to the first electric device, wherein the first instruction is used for requesting to read fault information of a first battery on the first electric device;

the fault diagnosis equipment receives fault information of the first battery, which is sent by the first electric device based on the first instruction;

the fault diagnosis device analyzes the fault information of the first battery and controls an output device of the fault diagnosis device to output the current fault of the first battery to the diagnostic personnel.
The method according to claim 1, wherein the method further comprises:

The fault diagnosis apparatus transmits a second instruction to the first electric device, the second instruction being for instructing to clear a fault currently existing in the first battery.
The method according to claim 1, wherein the method further comprises:

the fault diagnosis equipment obtains a software upgrading version of the first electric device from a cloud platform, wherein the software upgrading version is used for upgrading the software of the first electric device;

the fault diagnosis apparatus transmits the software upgrade version to the first electric device to clear a fault currently existing in the first battery.
A method according to any one of claims 1 to 3, further comprising:

before the fault diagnosis apparatus disconnects the wireless connection with the first electric device and after the fault diagnosis apparatus establishes the wireless connection with the second electric device, the fault diagnosis apparatus sends a third instruction to the second electric device, wherein the third instruction is used for requesting to read fault information of a second battery on the second electric device.
The method according to any one of claims 1 to 4, further comprising:

The fault diagnosis equipment acquires MAC address information of the first electric device;

and the fault diagnosis equipment initiates a Bluetooth connection request to the first electric device according to the MAC address information.
The method of claim 5, wherein the failure diagnosis apparatus acquiring MAC address information of the first electrical device comprises:

and the fault diagnosis equipment acquires the MAC address information from the cloud server.
The method of claim 2, wherein the fault diagnosis apparatus transmits a second instruction to the first electrical device, comprising:

according to the input operation of the diagnostician, the fault diagnosis apparatus transmits the second instruction to the first electric device.
The method of any one of claims 1 to 7, wherein the output device comprises a display screen.
A fault diagnosis apparatus characterized by comprising:

a transmitting unit configured to transmit a first instruction to a first electric device after the failure diagnosis apparatus establishes a wireless connection with the first electric device, the first instruction being for requesting to read failure information of a first battery on the first electric device;

A receiving unit, configured to receive fault information of the first battery, which is sent by the first electrical device based on the first instruction;

and the processing unit is used for analyzing the fault information of the first battery and controlling an output device of the fault diagnosis equipment to output the current fault of the first battery to the diagnostician.
The fault diagnosis device according to claim 9, wherein the transmission unit is further configured to:

and sending a second instruction to the first electric device, wherein the second instruction is used for indicating to clear the current fault of the first battery.
The fault diagnosis device of claim 9, wherein the processing unit is further configured to:

acquiring a software upgrading version of the first electric device from a cloud platform, wherein the software upgrading version is used for upgrading the software of the first electric device;

the transmitting unit is further configured to:

and sending the software upgrading version to the first electric device so as to clear the current fault of the first battery.
The fault diagnosis apparatus according to any one of claims 9 to 11, wherein the transmission unit is further configured to:

Before the fault diagnosis equipment breaks the wireless connection with the first electric device and after the fault diagnosis equipment establishes the wireless connection with the second electric device, according to a third input operation of the diagnosis personnel, a third instruction is sent to the second electric device, and the third instruction is used for requesting to read fault information of a second battery on the second electric device.
The fault diagnosis apparatus according to any one of claims 9 to 12, wherein the processing unit is further configured to:

acquiring MAC address information of the first electric device;

the transmitting unit is further configured to:

and according to the MAC address information, a Bluetooth connection request is initiated to the first electric device.
The fault diagnosis apparatus according to claim 13, wherein the processing unit is specifically configured to:

and acquiring the MAC address information from a cloud server.
The fault diagnosis apparatus according to claim 10, wherein the transmission unit is specifically configured to:

and sending the second instruction to the first electric device according to the input operation of the diagnostic personnel.
The fault diagnosis apparatus according to any one of claims 9 to 15, wherein the output means comprises a display screen.
The fault diagnosis device according to any one of claims 9 to 16, characterized in that the fault diagnosis device is a mobile terminal.
A fault diagnosis device comprising a memory for storing instructions and a processor for reading the instructions and performing the method according to any one of claims 1 to 8 based on the instructions.