WO2022222782A1 - 车辆远程诊断***及方法 - Google Patents

车辆远程诊断***及方法 Download PDF

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Publication number
WO2022222782A1
WO2022222782A1 PCT/CN2022/086244 CN2022086244W WO2022222782A1 WO 2022222782 A1 WO2022222782 A1 WO 2022222782A1 CN 2022086244 W CN2022086244 W CN 2022086244W WO 2022222782 A1 WO2022222782 A1 WO 2022222782A1
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WIPO (PCT)
Prior art keywords
vehicle
remote
battery voltage
vci device
vci
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PCT/CN2022/086244
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English (en)
French (fr)
Inventor
王永超
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深圳市道通科技股份有限公司
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Application filed by 深圳市道通科技股份有限公司 filed Critical 深圳市道通科技股份有限公司
Priority to US18/556,359 priority Critical patent/US20240212400A1/en
Priority to EP22790891.0A priority patent/EP4310616A1/en
Publication of WO2022222782A1 publication Critical patent/WO2022222782A1/zh

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0237—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on parallel systems, e.g. comparing signals produced at the same time by same type systems and detect faulty ones by noticing differences among their responses
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
    • G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0816—Indicating performance data, e.g. occurrence of a malfunction
    • G07C5/0833—Indicating performance data, e.g. occurrence of a malfunction using audio means
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the present application relates to the technical field of vehicle diagnosis, and in particular, to a vehicle remote diagnosis system and method.
  • Vehicle remote diagnosis is a vehicle diagnosis device.
  • the vehicle diagnosis instrument After the vehicle diagnosis instrument is connected with the vehicle ECU (electronic control unit) through the communication interface device, it sends a diagnosis command to the vehicle ECU to obtain the vehicle ECU feedback based on the diagnosis command. How the diagnostic data is diagnosed.
  • the vehicle diagnostic instrument can analyze the fault information of the vehicle according to the diagnostic data, so that professionals can repair the vehicle in time when it is determined that the vehicle is faulty. Since this diagnostic method does not require close contact with the vehicle, it is convenient and efficient.
  • the traditional remote diagnosis system generally includes local VCI equipment (Vehicle Communication Interface, vehicle communication interface), remote VCI equipment, original VCI equipment and diagnostic equipment.
  • the local VCI device communicates with the ECU of the vehicle through the OBD interface of the vehicle, and communicates with the remote VCI device, the remote VCI device is connected with the original VCI device, and the original VCI device is connected with the diagnostic device.
  • the remote VCI device is generally powered by a fixed power supply voltage, which has the following adverse effects:
  • the operating state of the vehicle is unstable, for example, when the battery voltage of the vehicle drops and the operating state is unstable (unstable operating state It can be that the vehicle electronics cannot work normally due to unstable power supply)
  • the local VCI device will become unstable due to unstable power supply
  • the remote VCI device communicates with the local VCI device Connection, when the local VCI device is unstable, the remote VCI device will also become unstable.
  • data is transmitted between the local VCI device and the remote VCI device, data loss will occur, and even system crashes may occur in severe cases. And cause the remote diagnosis to fail.
  • the remote diagnosis side does not know the real-time operating state of the vehicle. If the real-time operating state of the vehicle changes, the remote diagnosis side still performs programming according to the fact that the real-time operating state of the vehicle is normal. Diagnosis, then, the remote diagnosis side may not be able to obtain correct diagnosis results.
  • Embodiments of the present invention provide a vehicle remote diagnosis system and method, which can improve the stability and success rate of vehicle remote diagnosis.
  • an embodiment of the present invention provides a vehicle remote diagnosis system, including:
  • a vehicle battery simulator connected to the remote VCI device, and the vehicle battery simulator is used to simulate the battery voltage of the vehicle to supply power to the remote VCI device;
  • a vehicle diagnostic instrument is connected to the remote VCI device, and the vehicle diagnostic instrument is configured to send a diagnostic command to the remote VCI device to obtain diagnostic data fed back by the vehicle based on the diagnostic command.
  • the vehicle battery simulator includes a control module and a power module
  • the control module is connected with the remote VCI device, and the control module is configured to receive the battery voltage information of the vehicle obtained by the local VCI device through the remote VCI device, and output the battery voltage information of the vehicle according to the battery voltage information of the vehicle. a first control signal;
  • the power module is respectively connected to the control module and the remote VCI device, and the power module is configured to output the battery voltage of the vehicle to the remote VCI device according to the first control signal.
  • the vehicle battery simulator further includes an alarm module
  • the alarm module is connected to the control module, and the control module is configured to output the second control signal to the alarm module when it is determined according to the vehicle battery voltage information that the vehicle battery voltage is less than a preset voltage threshold , so that the alarm module sends out an alarm signal.
  • the local VCI device is configured with a first wireless communication module
  • the remote VCI device is configured with a second wireless communication module
  • the remote VCI device establishes a data communication connection with the first wireless communication module of the local VCI device through the second wireless communication module.
  • the first wireless communication module and the second wireless communication module are WiFi modules, 4G wireless communication modules or 5G wireless communication modules.
  • control module is also used for:
  • the remote diagnosis operation is continued.
  • control module performs a stop remote diagnosis operation, including:
  • the control module sends a stop diagnosis command to the vehicle diagnosis device through the remote VCI device, so that the vehicle diagnosis device stops the remote diagnosis according to the stop diagnosis command.
  • control module continues to determine whether the vehicle battery voltage is less than the preset voltage threshold according to the vehicle battery voltage information
  • the remote diagnostic operation is resumed.
  • an embodiment of the present invention provides a vehicle remote diagnosis method, which is applied to the above-mentioned vehicle remote diagnosis system. Data transmission is performed between the remote VCI device and the local VCI device based on a wireless network.
  • the vehicle remote diagnosis method includes the steps:
  • the local VCI device obtains battery voltage information of the vehicle, and transmits the battery voltage information of the vehicle to the remote VCI device;
  • the remote VCI device receives battery voltage information of the vehicle, and sends the battery voltage information of the vehicle to a vehicle battery simulator;
  • the vehicle battery simulator receives battery voltage information of the vehicle, and simulates the battery voltage of the vehicle according to the battery voltage information of the vehicle to supply power to the remote VCI.
  • the vehicle battery simulator includes a control module and a power supply module, and the step of simulating the battery voltage of the vehicle to supply power to the remote VCI device according to the battery voltage information of the vehicle further includes:
  • the control module outputs a corresponding control signal to the power module according to the battery voltage information of the vehicle;
  • the power module obtains the battery voltage of the vehicle according to the control signal output by the control module, and outputs the battery voltage of the vehicle to the remote VCI device.
  • the beneficial effects of the embodiments of the present invention are to provide a vehicle remote diagnosis system and method.
  • the vehicle remote diagnosis system includes local VCI equipment, remote VCI equipment, vehicle battery simulator and vehicle diagnostic instrument.
  • the battery simulator can simulate the battery voltage of the vehicle to supply power to the remote VCI device, the vehicle diagnostic instrument is connected with the remote VCI device, and the vehicle diagnostic instrument can send the diagnostic command to the vehicle through the remote VCI device and the local VCI device to obtain the vehicle based on the diagnostic command.
  • Feedback diagnostic data By simulating the battery voltage of the vehicle to supply power to the remote VCI device, it can improve the stability and success rate of the remote diagnosis of the vehicle.
  • FIG. 1 is a schematic diagram of an application environment of a vehicle remote diagnosis system provided by an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a vehicle remote diagnosis system provided in FIG. 1;
  • FIG. 3 is a schematic structural diagram of another vehicle remote diagnosis system provided in FIG. 1;
  • FIG. 4 is a schematic flowchart of a method for remote diagnosis of a vehicle provided by an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of step S30 in FIG. 4 .
  • FIG. 1 shows a schematic diagram of an application environment of a vehicle remote diagnosis system provided by an embodiment of the present invention.
  • the application environment includes a vehicle remote diagnosis system 100 and a vehicle 200 .
  • the vehicle remote diagnosis system 100 is communicatively connected with the vehicle 200 , so that the vehicle remote diagnosis system 100 can send commands/data to the vehicle 200 and/or receive parameters/data returned by the vehicle 200 , so as to realize the remote diagnosis of the vehicle 200 .
  • the vehicle remote diagnosis system 100 includes a local VCI device 10 , a remote VCI device 20 , a vehicle battery simulator 30 and a vehicle diagnostic instrument 40 .
  • Both the local VCI device 10 and the remote VCI device 20 are interface devices for communication between the vehicle diagnostic instrument 40 and the vehicle 200 , and are used for protocol conversion to establish a communication link between the vehicle diagnostic instrument 40 and the vehicle 200 .
  • the vehicle 200 may be any type of vehicle, such as a car, a bus, a heavy truck, and the like.
  • the vehicle 200 is provided with an electronic control unit (Electronic Control Unit, ECU), and the ECU records all the data/parameters of the vehicle 200. By acquiring the data in the ECU, the vehicle 200 can be remotely diagnosed.
  • ECU Electronic Control Unit
  • the ECU is a microcomputer dedicated to the vehicle in terms of its purpose.
  • the functions of modern vehicles are more and more abundant, and each subsystem on the vehicle needs a powerful ECU to control the work of the system.
  • the transmission ECU adjusts the appropriate gear according to the current vehicle speed and rotational speed
  • the air conditioning ECU automatically adjusts the temperature according to the current temperature.
  • ECU The functions of ECU are divided into three logically, namely logic control function, bus function and diagnosis function.
  • the logic control function of the ECU simply put, is that the ECU obtains the input signal from the sensor or the bus, and after a series of operations, outputs the action through the actuator.
  • ECUs do not exist in isolation in the vehicle network, and each ECU needs to exchange information.
  • the instrument needs the speed signal output by the engine to correctly display the current speed.
  • the bus function of the ECU refers to the function of the ECU to exchange data information in the vehicle network.
  • the diagnosis function of the ECU can be used to read the cause of the failure from the ECU through the vehicle diagnostic instrument, so as to carry out more targeted maintenance.
  • the local VCI device 10 as an interface device that communicates directly with the vehicle 200, is connected to the OBD (On Board Diagnostics) interface on the vehicle 200 through its own communication interface, so that the local VCI device 10 establishes a communication connection with the ECU of the vehicle 200.
  • OBD On Board Diagnostics
  • the remote VCI device 20 is used as an interface device for indirect communication with the vehicle 200 and a key device for realizing remote diagnosis of the vehicle. Such as diagnostic commands) are forwarded to the local VCI device 10 via the remote VCI device 20, and then the local VCI device 10 transmits the data to the ECU of the vehicle 200 to read corresponding information from the ECU, such as corresponding fault code information.
  • the local VCI device 10 obtains diagnostic data such as fault code information from the ECU, and then sends the diagnostic data to the vehicle diagnostic instrument 40 via the remote VCI device 20, so that the vehicle diagnostic instrument 40 provides a diagnostic result according to the diagnostic data.
  • the communication connection between the local VCI device 10 and the remote VCI device 20 may be performed by any suitable communication means.
  • the local VCI device 10 is configured with a first communication module 101
  • the remote VCI device 20 is configured with a second communication module 201
  • the remote VCI device 20 communicates with the local VCI device through the second communication module 201
  • the first communication module 101 of 10 establishes a data communication connection.
  • the first communication module 101 and the second communication module 201 communicate based on any same communication protocol or network protocol.
  • the first communication module 101 and the second communication module 102 are WiFi modules, 4G wireless communication modules or 5G wireless communication modules.
  • the WiFi module (the second communication module 201) of the remote VCI device 20 is connected to the Internet
  • the WiFi module (the second communication module 201) of the local VCI device 10 is connected to the Internet.
  • a communication module 101 accesses the Internet, for the remote VCI device 20, the data of the remote VCI device 20 can be transmitted to the local VCI device 10 through the Internet, or the data sent by the local VCI device 10 can be obtained through the Internet; for the local VCI device 10, The data of the local VCI device 10 can be transmitted to the remote VCI device 20 through the Internet, or the data sent by the remote VCI device 20 can be obtained through the Internet.
  • the vehicle diagnostic instrument 40 may be any type of electronic device capable of diagnosing the vehicle 200 , for example, it may specifically be a tablet computer for diagnosis, and the tablet computer is installed with relevant diagnostic software for diagnosing the vehicle 200 .
  • the application environment may also include more Or there are fewer vehicle remote diagnosis systems 100 and vehicles 200 , for example, the application environment includes one vehicle remote diagnosis 100 and multiple vehicles 200 .
  • the vehicle 200 is configured with a battery (such as a lead-acid battery) to supply power to various vehicle electronics in the vehicle 200 .
  • a battery such as a lead-acid battery
  • the voltage of the battery cannot be too low. If the voltage of the battery is too low, the stable power supply to various vehicles cannot be guaranteed. At this time, the vehicle 200 will work in an abnormal state or an unstable state.
  • the local VCI device 10 is powered by the battery of the vehicle 200, if the voltage of the battery decreases, the local VCI device 10 will become unstable due to unstable power supply, and during the remote diagnosis process, The local VCI device 10 and the remote VCI device 20 are performing data interaction.
  • the local VCI device 10 If the local VCI device 10 is unstable, it will affect the stability of the signal transmitted between the local VCI device 10 and the remote VCI device 20, resulting in data loss, so that the vehicle diagnostic instrument 40 cannot obtain the data. Complete or correct diagnostic data, and thus unable to obtain correct diagnostic results. In severe cases, the entire vehicle remote diagnosis system 100 will crash, thereby causing the remote diagnosis to fail.
  • the system of the vehicle 200 needs to be turned on first. After the system of the vehicle 200 is turned on, the battery of the vehicle 200 is powered on and starts to supply power to various vehicle electronics to ensure that the vehicle 200 works in a stable state , however, with the increase of the diagnosis time, the electric energy of the battery is continuously consumed, and the voltage of the battery also decreases continuously. When the voltage of the battery decreases to a certain level, the vehicle 200 starts to work in an abnormal or unstable state, which is very useful for remote diagnosis. is extremely disadvantageous.
  • a vehicle battery simulator 30 is added to the vehicle remote diagnosis system 100 , and the vehicle battery simulator 30 can simulate the battery voltage of the vehicle 200 to supply power to the remote VCI device 20 .
  • the supply voltage of the remote VCI device 20 always follows the battery voltage of the vehicle 200 .
  • the power supply voltage of the remote VCI is the battery voltage of the vehicle 200 instead of a fixed power supply voltage
  • the power supply voltages of the local VCI device 10 and the remote VCI also fluctuate. , will make the transmission of signals between the vehicle diagnostic instrument 40 and the remote VCI device 20 and between the remote VCI device and the local VCI device 10 more stable and less likely to lose data, thereby ensuring that the vehicle diagnostic instrument 40 obtains complete and correct diagnostic data, And then give the correct diagnosis.
  • the vehicle battery simulator 30 includes a control module 301 and a power module 302 .
  • the control module 301 is connected to the remote VCI device 20 .
  • the control module 301 receives the battery voltage information of the vehicle 200 obtained by the local VCI device 10 through the remote VCI device 20 .
  • the local VCI device 10 establishes a communication connection with the ECU of the vehicle 200.
  • the local VCI device 10 obtains the battery voltage information of the vehicle 200 from the ECU of the vehicle 200, and then sends the battery voltage information of the vehicle 200 to the remote VCI device 20.
  • the remote VCI The device 20 then sends the received battery voltage information of the vehicle 200 to the control module 301 .
  • control module 301 When the control module 301 receives the battery voltage information of the vehicle 200 , it outputs a first control signal to the power module 302 according to the battery voltage information of the vehicle 200 .
  • the power module 302 is connected to the control module 301 and the remote VCI device 20, respectively.
  • the power supply module 302 When the power supply module 302 receives the first control signal output by the control module 301, according to the first control signal, it outputs a voltage consistent with the battery voltage of the vehicle 200, and outputs the voltage as a power supply voltage to the remote VCI device 20, so that the remote The supply voltage of the VCI follows or simulates the battery voltage of the vehicle 200 .
  • the control module 301 can be any general-purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA), microcontroller, ARM (Acorn RISC Machine) or other programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination of these. Also, the control module 301 can also be any conventional processor, controller, microcontroller or state machine. Control module 301 may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in combination with a DSP, and/or any other such configuration.
  • Both the local VCI device 10 and the remote VCI device 20 have a power supply voltage range.
  • the power supply voltage of the local VCI device 10 and the remote VCI device 20 is too small, both the local VCI device 10 and the remote VCI device 20 will become unstable due to unstable power supply. Stable, the local VCI device 10 and the remote VCI device 20 work in an unstable state, which is unfavorable for remote diagnosis.
  • the vehicle battery simulator 30 further includes an alarm module 303 , and the alarm module 303 is connected to the control module 301 .
  • the control module 301 After receiving the battery voltage information of the vehicle 200 from the remote VCI device 20, the control module 301 will also determine, according to the battery voltage information of the vehicle 200, that the battery voltage of the vehicle 200 is less than a preset voltage threshold (for example, the preset voltage threshold is 6V, but Not limited to this, the preset voltage threshold can be set according to the actual situation), for example, when it is determined that the battery voltage of the vehicle 200 is less than 6V, the second control signal is output to the alarm module 303, and when the alarm module 303 receives the second control signal, Send an alarm signal.
  • the alarm module 303 includes a buzzer, an indicator light, and so on.
  • the control module 301 determines whether the battery voltage of the vehicle 200 is lower than the preset voltage according to the battery voltage information of the vehicle 200 . threshold, when the battery voltage of the vehicle 200 is less than the preset voltage threshold, the stop remote diagnosis operation is performed, and when the stop remote diagnosis operation is performed, the control module 301 sends a stop diagnosis command to the vehicle diagnostic instrument 40 through the remote VC1 device 20, so that the vehicle The diagnostic instrument 40 immediately stops the remote diagnosis according to the diagnosis command.
  • the remote diagnosis operation is continued.
  • the power supply voltage of the local VCI device 10 and the remote VCI device 20 is too low. At this time, the local VCI device 10 and the remote VCI device 20 will become unstable due to unstable power supply , therefore, in order to avoid remote diagnosis failure due to system crash, it is necessary to temporarily stop remote diagnosis.
  • the control module 301 continues to determine whether the battery voltage of the vehicle 200 is less than the preset voltage threshold according to the battery voltage information of the vehicle 200 , if the battery voltage of the vehicle 200 is less than the preset voltage threshold At this time, the control module 301 continues to perform the stop remote diagnosis operation. If the battery voltage of the vehicle 200 is greater than or equal to the preset voltage threshold, the control module 301 resumes the remote diagnosis operation. When the control module 301 resumes the remote diagnosis operation, the remote VCI The device sends an instruction to start the remote diagnosis to the vehicle diagnostic instrument 40, so that the vehicle diagnostic instrument 40 restarts the remote diagnosis according to the instruction to start the remote diagnosis.
  • the remote diagnosis can be stopped, which can avoid the situation of data loss or system crash caused by the unstable power supply of the local VCI device 10 and the remote VCI device 20, and, When the power supply voltages of the local VCI device 10 and the remote VCI device 20 are normal, the remote diagnosis is continued. Therefore, in this way, it can improve the stability and success rate of remote diagnosis.
  • the embodiment of the present invention provides a method for remote diagnosis of a vehicle, and the method for remote diagnosis of a vehicle is applied to the vehicle diagnosis system 100 as described above. Data transmission is performed between the local VCI device 10 and the remote VCI device 20 in the vehicle diagnostic system 100 based on a wireless network.
  • FIG. 4 is a schematic flowchart of a method for remote diagnosis of a vehicle according to an embodiment of the present invention.
  • the vehicle remote diagnosis method includes:
  • the local VCI device 10 acquires the battery voltage information of the vehicle, and transmits the battery voltage information of the vehicle to the remote VCI device 20;
  • the remote VCI device 20 receives the battery voltage information of the vehicle, and sends the battery voltage information of the vehicle to the vehicle battery simulator 30;
  • the vehicle battery simulator 30 receives the battery voltage information of the vehicle, and simulates the battery voltage of the vehicle to supply power to the remote VCI device 20 according to the battery voltage information of the vehicle.
  • the vehicle battery simulator 30 includes a control module 301 and a power supply module 302. Specifically, as shown in FIG. 5, step S30 further includes:
  • the control module 301 outputs a corresponding control signal to the power module 302 according to the battery voltage information of the vehicle;
  • the power module 302 obtains the battery voltage of the vehicle according to the control signal output by the control module 301 , and outputs the battery voltage of the vehicle to the remote VCI device 20 .
  • the present invention can be implemented in many different forms, and is not limited to the embodiments described in this specification. These embodiments are not intended to limit the content of the present invention. The purpose of providing these embodiments is to make the present invention A more thorough and comprehensive understanding of the disclosed content. And under the thinking of the present invention, the above-mentioned technical features continue to be combined with each other, and there are many other changes in different aspects of the present invention as described above, which are all regarded as the scope of the description of the present invention; further, to those of ordinary skill in the art. That said, improvements or changes can be made based on the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present invention.

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Abstract

涉及车辆诊断技术领域，公开一种车辆远程诊断***(100)及方法。车辆远程诊断***(100)包括本地VCI设备(10)、远程VCI设备(20)、车辆电池模拟器(30)及车辆诊断仪(40)，本地VCI设备(10)与车辆(200)连接，远程VCI设备(20)与本地VCI设备(10)通信连接，车辆电池模拟器(30)与远程VCI设备(20)连接，车辆电池模拟器(30)可模拟车辆(200)的电池电压向远程VCI设备(20)供电，车辆诊断仪(40)与远程VCI设备(20)连接，车辆诊断仪(40)可通过远程VCI设备(20)和本地VCI设备(10)将诊断命令发送给车辆(200)，以获取车辆(200)基于该诊断命令反馈的诊断数据。通过模拟车辆(200)的电池电压向远程VCI设备(20)供电，其能够提高车辆远程诊断的稳定性和成功率。

Description

车辆远程诊断***及方法
本申请要求于2021年4月22日提交中国专利局、申请号为202110436747.1、申请名称为“车辆远程诊断***及方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及车辆诊断技术领域，特别是涉及一种车辆远程诊断***及方法。
背景技术
车辆远程诊断，是车辆诊断设备，例如车辆诊断仪通过通信接口装置与车辆的ECU(电子控制单元)实现通信连接后，向车辆的ECU发送诊断命令，以得到车辆的ECU基于该诊断命令反馈的诊断数据的诊断方式。车辆诊断仪可根据诊断数据分析车辆的故障信息，以便专业人士在确定车辆发生故障时，及时对车辆进行维修。由于此种诊断方式无需与车辆近距离接触，因而比较便捷且高效。
传统的远程诊断***一般包括本地VCI设备(Vehicle Communication Interface，车辆通信接口)、远程VCI设备、原厂VCI设备及诊断设备。本地VCI设备通过车辆的OBD接口与车辆的ECU进行通信连接，并且与远程VCI设备通信连接，远程VCI设备与原厂VCI设备连接，原厂VCI设备与诊断设备连接。
目前，一般是通过固定的电源电压给远程VCI设备供电，这会存在以下不利影响：当车辆的运行状态不稳定时，例如，车辆的电池电压下降而导致运行状态不稳定时(运行状态不稳定可以是车辆电子由于供电不稳而无法实现正常工作)，由于本地VCI设备是供电由车辆电池提供的，本地VCI设备会由于供电不稳而变得不稳定，而远程VCI设备与本地VCI设备通信连接，本地VCI设备不稳定时，远程VCI设备也会变得不稳定，此时，本地VCI设备与远程VCI设备之间进行数据传输时，会出现数据丢失的情况，严重时甚至会出现***死机而导致远程诊断失败的情况。另外，在进行远程诊断时，远程诊断侧并不知道车辆实时的运行状态，如果车辆实时的运行状态发生变化，而远程诊断侧还是按照车辆实时的运行状态为正常的情况进行编程，对车辆进行诊断，那么，远程诊断侧很可能无法得到正确的诊断结果。
发明内容
本发明实施例提供一种车辆远程诊断***及方法，其能够提高车辆远程诊断的稳定性和成功率。
本发明实施例为解决相关技术问题提供了如下技术方案：
在第一方面，本发明实施例提供了一种车辆远程诊断***，包括：
本地VCI设备，用于与车辆连接；
远程VCI设备，与所述本地VCI设备通信连接；
车辆电池模拟器，与所述远程VCI设备连接，所述车辆电池模拟器用于模拟所述车辆的电池电压向所述远程VCI设备供电；
车辆诊断仪，与所述远程VCI设备连接，所述车辆诊断仪用于向所述远程VCI设备发送诊断命令，以获取所述车辆基于所述诊断命令反馈的诊断数据。
可选地，所述车辆电池模拟器包括控制模块及电源模块；
所述控制模块与所述远程VCI设备连接，所述控制模块用于通过所述远程VCI设备接收所述本地VCI设备获取的所述车辆的电池电压信息，根据所述车辆的电池电压信息，输出第一控制信号；
所述电源模块分别与所述控制模块及所述远程VCI设备连接，所述电源模块用于根据所述第一控制信号，向所述远程VCI设备输出所述车辆的电池电压。
可选地，所述车辆电池模拟器还包括报警模块；
所述报警模块与所述控制模块连接，所述控制模块用于根据所述车辆电池电压信息，确定所述车辆电池电压小于预设电压阈值时，向所述报警模块输出所述第二控制信号，以使所述报警模块发出报警信号。
可选地，所述本地VCI设备配置有第一无线通信模块，所述远程VCI设备配置有第二无线通信模块；
所述远程VCI设备通过所述第二无线通信模块与所述本地VCI设备的第一无线通信模块建立数据通信连接。
可选地，所述第一无线通信模块和第二无线通信模块为WiFi模块、4G无线通信模块或者5G无线通信模块。
可选地，所述控制模块还用于：
在获取所述车辆的电池电压信息后，根据所述车辆的电池电压信息，判断所述车辆的电池电压是否小于预设电压阈值；
若所述车辆的电池电压小于预设电压阈值，执行停止远程诊断操作；
若所述车辆的电池电压大于或等于所述预设电压阈值，继续进行远程诊断操作。
可选地，所述控制模块执行停止远程诊断操作，包括：
所述控制模块通过所述远程VCI设备给所述车辆诊断设备发送停止诊断命令，以使所述车辆诊断设备根据所述停止诊断命令，停止远程诊断。
可选地，所述控制模块在执行停止远程诊断操作后，继续根据所述车辆电池电压信息，判断所述车辆电池电压是否小于所述预设电压阈值；
若所述车辆电池电压小于所述预设电压阈值，继续执行停止远程诊断操作；
若所述车辆电池电压大于或等于所述预设电压阈值，恢复进行远程诊断操 作。
在第二方面，本发明实施例提供一种车辆远程诊断方法，应用于如上所述的车辆远程诊断***，所述远程VCI设备与所述本地VCI设备之间基于无线网络进行数据传输，所述车辆远程诊断方法包括步骤：
所述本地VCI设备获取车辆的电池电压信息，并且将所述车辆的电池电压信息传输给所述远程VCI设备；
所述远程VCI设备接收所述车辆的电池电压信息，并且将所述车辆的电池电压信息发送给车辆电池模拟器；
所述车辆电池模拟器接收所述车辆的电池电压信息，并且根据所述车辆的电池电压信息模拟所述车辆的电池电压向所述远程VCI供电。
可选地，所述车辆电池模拟器包括控制模块及电源模块，所述根据所述车辆的电池电压信息模拟所述车辆的电池电压向所述远程VCI设备供电的步骤，进一步包括：
所述控制模块根据所述车辆的电池电压信息，向所述电源模块输出对应的控制信号；
所述电源模块根据所述控制模块输出的控制信号，得到车辆的电池电压，并且将所述车辆的电池电压输出给所述远程VCI设备。
本发明实施例的有益效果是：提供一种车辆远程诊断***及方法。车辆远程诊断***包括本地VCI设备、远程VCI设备、车辆电池模拟器及车辆诊断仪，本地VCI设备与车辆连接，远程VCI设备与本地VCI设备通信连接，车辆电池模拟器与远程VCI设备连接，车辆电池模拟器可模拟车辆的电池电压向远程VCI设备供电，车辆诊断仪与远程VCI设备连接，车辆诊断仪可通过远程VCI设备和本地VCI设备将诊断命令发送给车辆，以获取车辆基于该诊断命令反馈的诊断数据。通过模拟车辆的电池电压向远程VCI设备供电，其能够提高车辆远程诊断的稳定性和成功率。
附图说明
一个或多个实施例通过与之对应的附图中的图片仅作为示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本发明实施例提供一种车辆远程诊断***的应用环境示意图；
图2是图1中提供一种车辆远程诊断***的结构示意图；
图3是图1中提供另一种车辆远程诊断***的结构示意图；
图4是本发明实施例提供一种车辆远程诊断方法的流程示意图；
图5是图4中步骤S30的流程示意图。
具体实施方式
为了便于理解本申请，下面结合附图和具体实施方式，对本申请进行更详细的说明。需要说明的是，当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。此外，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
除非另有定义，本说明书所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是用于限制本发明。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
需要说明的是，下面所描述的本申请不同实施例中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。另外，虽然在装置示意图中进行了功能模块划分，在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于装置中的模块划分，或流程图中的顺序执行所示出或描述的步骤。再者，本发明所采用的“第一”“第二”等字样并不对数据和执行次序进行限定，仅是对功能和作用基本相同的相同项或相似项进行区分。
请参阅图1，其示出了本发明实施例提供一种车辆远程诊断***的应用环境示意图。如图1所示，所述应用环境包括车辆远程诊断***100和车辆200。
车辆远程诊断***100与车辆200通信连接，从而，车辆远程诊断***100可以向车辆200发送指令/数据，和/或，接收车辆200返回的参数/数据，从而实现对车辆200的远程诊断。
具体地，如图2所示，车辆远程诊断***100包括本地VCI设备10、远程VCI设备20、车辆电池模拟器30及车辆诊断仪40。
本地VCI设备10和远程VCI设备20均是车辆诊断仪40与车辆200通信的接口设备，用于进行协议的转换以搭建起车辆诊断仪40和车辆200之间的通信链路。
车辆200可以为任意类型的交通工具，比如，轿车、公交车、重型卡车等。其中，车辆200内设置有电子控制单元(Electronic Control Unit，ECU)，ECU记录有车辆200的全部数据/参数，通过获取ECU内的数据，可以对车辆200进行远程诊断。
ECU从用途上来说就是车辆专用的微型计算机。现代车辆的功能越来越丰富，车辆上的各个子***都需要功能强大的ECU来控制本***的工作。例如，变速箱ECU根据当前的车速和转速来调整合适的档位，空调ECU根据当前的温度来自动调整温度。
ECU的功能从逻辑上来说分为三种，分别是逻辑控制功能、总线功能和诊断功能。
ECU的逻辑控制功能，简单地说，就是ECU从传感器或者总线上获取输入信号，经过一系列的运算之后通过执行器将动作输出。
ECU在车载网络中并不是孤立地存在的，各个ECU之间需要交换信息，例如，仪表需要发动机输出的转速信号才能正确显示当前转速。ECU的总线功能 是指ECU在车载网络中交换数据信息的功能。
整车一旦装配好，那些隐藏在车体中的各种信息就难以知道了。如果车辆发生了故障，此时，可以利用ECU的诊断功能，通过车辆诊断仪从ECU中读出来故障的原因，从而更加有针对性地进行维修。
本地VCI设备10作为与车辆200直接通信的接口设备，其通过自身的通信接口与车辆200上的OBD(On Board Diagnostics)接口进行连接，从而，本地VCI设备10与车辆200的ECU建立通信连接。
远程VCI设备20作为与车辆200进行间接通信的接口设备以及实现车辆远程诊断的关键设备，其与本地VCI设备10进行通信连接以及与车辆诊断仪40连接，车辆诊断仪40可以将发送的数据(例如诊断命令)经由远程VCI设备20转发至本地VCI设备10，然后本地VCI设备10将所述数据传输至车辆200的ECU，以从ECU中读取相应的信息，例如相应的故障码信息。本地VCI设备10从ECU中获取故障码信息等诊断数据，然后将所述诊断数据经由远程VCI设备20发送给车辆诊断仪40，从而，车辆诊断仪40根据所述诊断数据，给出诊断结果。
本地VCI设备10与远程VCI设备20之间可通过任意合适的通信方式进行通信连接。在一些实施例中，如图3所示，本地VCI设备10配置有第一通信模块101，远程VCI设备20配置有第二通信模块201，远程VCI设备20通过第二通信模块201与本地VCI设备10的第一通信模块101建立数据通信连接。
第一通信模块101与第二通信模块201基于任意相同的通信协议或网络协议进行通信。在一些实施例中，第一通信模块101和第二通信模块102为WiFi模块、4G无线通信模块或者5G无线通信模块。第一通信模块201和第二通信模块101之间通过WiFi方式通信时，例如，远程VCI设备20的WiFi模块(第二通信模块201)接入互联网，并且，本地VCI设备10的WiFi模块(第一通信模块101)接入互联网，对于远程VCI设备20，远程VCI设备20的数据可通过互联网传输给本地VCI设备10，或者通过互联网获取本地VCI设备10发送过来的数据；对于本地VCI设备10，本地VCI设备10的数据可通过互联网传输给远程VCI设备20，或者通过互联网获取远程VCI设备20发送过来的数据。
车辆诊断仪40可以为任意类型的能够对车辆200进行诊断的电子设备，例如，其具体可以为诊断用的平板电脑，所述平板电脑上安装有对车辆200进行诊断的相关诊断软件。
值得说明的是，虽然图1中仅显示了1个车辆远程诊断***100和1辆车辆200，但是，本领域技术人员可以理解的是，在实际应用过程中，该应用环境还可以包括更多或者更少的车辆远程诊断***100和车辆200，例如，该应用环境包括1个车辆远程诊断100和多辆车辆200。
车辆200配置有蓄电池(例如铅酸蓄电池)为车辆200中的各种车辆电子供电，为保证车辆200对各种车辆电子稳定供电，使得车辆200能够正常稳定 工作，在为各种车辆电子供电过程中，蓄电池的电压不能太低，若蓄电池的电压过低，就无法保证对各种车辆电子稳定供电，此时，车辆200会工作在异常状态或不稳定状态，如果此时正在进行对车辆200的远程诊断，由于本地VCI设备10是由车辆200的蓄电池供电的，若蓄电池的电压降低时，那么本地VCI设备10将会由于供电不稳而变得不稳定，并且，在远程诊断过程中，本地VCI设备10与远程VCI设备20在进行数据交互，如果本地VCI设备10不稳定，将会影响与远程VCI设备20之间传输的信号的稳定性，造成数据丢失，使得车辆诊断仪40无法得到完整或正确的诊断数据，进而无法得到正确的诊断结果。严重时，将会导致整个车辆远程诊断***100死机，从而导致远程诊断失败。
在需要对车辆200进行诊断时，需要先对车辆200的***进行开机，车辆200的***开机后，车辆200的蓄电池上电，开始为各种车辆电子进行供电，以确保车辆200工作在稳定状态，然而，随着诊断时间的增加，蓄电池的电能被不断消耗，蓄电池的电压也会不断降低，当蓄电池的电压降低到一定程度时，车辆200开始工作在异常或不稳定状态，这对于远程诊断而言是极其不利的。
基于此，车辆远程诊断***100加入了车辆电池模拟器30，车辆电池模拟器30可模拟车辆200的电池电压向远程VCI设备20供电。在远程诊断过程中，远程VCI设备20的供电电压始终跟随车辆200的电池电压。
由于远程VCI的供电电压是车辆200的电池电压，而不是固定的电电源压，当车辆200的电池电压发生波动时，本地VCI设备10与远程VCI的供电电压也随之发生波动，如此一来，将会使得车辆诊断仪40与远程VCI设备20之间以及远程VCI设备与本地VCI设备10之间信号的传输更加稳定，不易丢失数据，从而保证车辆诊断仪40得到完整且正确的诊断数据，进而给出正确的诊断结果。
在一些实施例中，如图3所示，车辆电池模拟器30包括控制模块301和电源模块302。
控制模块301与远程VCI设备20连接。控制模块301通过远程VCI设备20接收本地VCI设备10获取的车辆200的电池电压信息。
首先，本地VCI设备10与车辆200的ECU建立通信连接，本地VCI设备10从车辆200的ECU中获取车辆200的电池电压信息，然后将车辆200的电池电压信息发送给远程VCI设备20，远程VCI设备20再将接收到的车辆200的电池电压信息发送给控制模块301。
控制模块301接收到车辆200的电池电压信息时，根据车辆200的电池电压信息，输出第一控制信号给电源模块302。
电源模块302分别与控制模块301和远程VCI设备20连接。
电源模块302接收到控制模块301输出的第一控制信号时，根据第一控制信号，输出与车辆200的电池电压一致的电压，并将该电压作为供电电压输出给远程VCI设备20，从而使得远程VCI的供电电压跟随或模拟车辆200的电 池电压。
控制模块301可以为任意通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、单片机、ARM(Acorn RISC Machine)或其它可编程逻辑器件、分立门或晶体管逻辑、分立的硬件组件或者这些部件的任何组合。还有，控制模块301还可以是任何传统处理器、控制器、微控制器或状态机。控制模块301也可以被实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、一个或多个微处理器结合DSP和/或任何其它这种配置。
本地VCI设备10与远程VCI设备20均存在一个供电电压范围，当本地VCI设备10与远程VCI设备20的供电电压过小时，本地VCI设备10与远程VCI设备20都会因为供电不稳而变得不稳定，本地VCI设备10与远程VCI设备20工作在不稳定状态对于远程诊断是不利的。
因此，需要在本地VCI设备10与远程VCI设备20的供电电压过小时，及时提醒用户，以便用户采取应对措施。
如图3所示，车辆电池模拟器30还包括报警模块303，报警模块303与控制模块301连接。
控制模块301接收到来自远程VCI设备20的车辆200的电池电压信息后，还会根据车辆200的电池电压信息，确定车辆200的电池电压小于预设电压阈值(例如预设电压阈值为6V，但不限于此，预设电压阈值可以根据实际情况进行设置)时，例如，确定车辆200的电池电压小于6V时，向报警模块303输出第二控制信号，报警模块303接收到第二控制信号时，发出报警信号。其中，报警模块303包括蜂鸣器、指示灯，以及等等。
为了更好地实现对车辆200的远程诊断，在一些实施例中，控制模块301在获取车辆200的电池电压信息后，根据车辆200的电池电压信息，判断车辆200的电池电压是否小于预设电压阈值，当车辆200的电池电压小于预设电压阈值时，执行停止远程诊断操作，在执行停止远程诊断操作时，控制模块301通过远程VC1设备20向车辆诊断仪40发送停止诊断命令，以使车辆诊断仪40根据所述诊断命令，立即停止远程诊断。当车辆200的电池电压大于或等于预设电压阈值时，继续进行远程诊断操作。
当车辆200的电池电压小于预设电压阈值时，本地VCI设备10与远程VCI设备20的供电电压过小，此时，本地VCI设备10与远程VCI设备20会因为供电不稳而变得不稳定，于是，为了避免***死机而导致远程诊断失败，需要暂时停止远程诊断。
在一些实施例中，控制模块301在执行停止远程诊断操作后，继续根据车辆200的电池电压信息，判断车辆200的电池电压是否小于预设电压阈值，若车辆200的电池电压小于预设电压阈值时，控制模块301继续执行停止远程诊断操作，若车辆200的电池电压大于或等于预设电压阈值时，控制模块301恢复进行远程诊断操作，控制模块301在恢复进行远程诊断操作时，通过远程 VCI设备向车辆诊断仪40发送启动远程诊断指令，以使车辆诊断仪40根据启动远程诊断指令，重新启动远程诊断。
因此，在本地VCI设备10与远程VCI设备20的供电电压过小时，停止远程诊断，可避免本地VCI设备10与远程VCI设备20由于供电不稳而出现的数据丢失或***死机的情况，并且，当本地VCI设备10与远程VCI设备20的供电电压正常时，继续进行远程诊断。因此，通过此种方式，其能够提高远程诊断的稳定性和成功率。
作为本发明实施例的另一方面，本发明实施例提供一种车辆远程诊断方法，车辆远程诊断方法应用于如上所述的车辆诊断***100。车辆诊断***100中的本地VCI设备10与远程VCI设备20之间基于无线网络进行数据传输。
请参阅图4，图4是本发明实施例提供一种车辆远程诊断方法的流程示意图。如图4所示，所述车辆远程诊断方法包括：
S10、本地VCI设备10获取车辆的电池电压信息，并且将车辆的电池电压信息传输给远程VCI设备20；
S20、远程VCI设备20接收所述车辆的电池电压信息，并且将所述车辆的电池电压信息发送给车辆电池模拟器30；
S30、车辆电池模拟器30接收所述车辆的电池电压信息，并且根据所述车辆的电池电压信息，模拟所述车辆的电池电压向远程VCI设备20供电。
其中，车辆电池模拟器30包括控制模块301及电源模块302，具体地，如图5所示，步骤S30进一步包括：
S301、控制模块301根据所述车辆的电池电压信息，向电源模块302输出对应的控制信号；
S302、电源模块302根据控制模块301输出的控制信号，得到车辆的电池电压，并且将所述车辆的电池电压输出给远程VCI设备20。
最后要说明的是，本发明可以通过许多不同的形式来实现，并不限于本说明书所描述的实施例，这些实施例不作为对本发明内容的额外限制，提供这些实施方式的目的是使对本发明的公开内容的理解更加透彻全面。并且在本发明的思路下，上述各技术特征继续相互组合，并存在如上所述的本发明不同方面的许多其它变化，均视为本发明说明书记载的范围；进一步地，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims (10)

  1. 一种车辆远程诊断***，其特征在于，包括：
    本地VCI设备，用于与车辆连接；
    远程VCI设备，与所述本地VCI设备通信连接；
    车辆电池模拟器，与所述远程VCI设备连接，所述车辆电池模拟器用于模拟所述车辆的电池电压向所述远程VCI设备供电；
    车辆诊断仪，与所述远程VCI设备连接，所述车辆诊断仪用于向所述远程VCI设备发送诊断命令，以获取所述车辆基于所述诊断命令反馈的诊断数据。
  2. 根据权利要求1所述的车辆远程诊断***，其特征在于，所述车辆电池模拟器包括控制模块及电源模块；
    所述控制模块与所述远程VCI设备连接，所述控制模块用于通过所述远程VCI设备接收所述本地VCI设备获取的所述车辆的电池电压信息，根据所述车辆的电池电压信息，输出第一控制信号；
    所述电源模块分别与所述控制模块及所述远程VCI设备连接，所述控制模块用于根据所述第一控制信号，向所述远程VCI设备输出所述车辆的电池电压。
  3. 根据权利要求2所述的车辆远程诊断***，其特征在于，所述车辆电池模拟器还包括报警模块；
    所述报警模块与所述控制模块连接，所述控制模块用于根据所述车辆电池电压信息，确定所述车辆电池电压小于预设电压阈值时，向所述报警模块输出所述第二控制信号，以使所述报警模块发出报警信号。
  4. 根据权利要求3所述的车辆远程诊断***，其特征在于，所述本地VCI设备配置有第一无线通信模块，所述远程VCI设备配置有第二无线通信模块；
    所述远程VCI设备通过所述第二无线通信模块与所述本地VCI设备的第一无线通信模块建立数据通信连接。
  5. 根据权利要求4所述的车辆远程诊断***，其特征在于，所述第一无线通信模块和第二无线通信模块为WiFi模块、4G无线通信模块或者5G无线通信模块。
  6. 根据权利要求1至5任一项所述的车辆远程诊断***，其特征在于，所述控制模块还用于：
    在获取所述车辆的电池电压信息后，根据所述车辆的电池电压信息，判断所述车辆的电池电压是否小于预设电压阈值；
    若所述车辆的电池电压小于预设电压阈值，执行停止远程诊断操作；
    若所述车辆的电池电压大于或等于所述预设电压阈值，继续进行远程诊断操作。
  7. 根据权利要求6所述的车辆远程诊断***，其特征在于，所述控制模块执行停止远程诊断操作，包括：
    所述控制模块通过所述远程VCI给所述车辆诊断设备发送停止诊断命令，以使所述车辆诊断设备根据所述停止诊断命令，停止远程诊断。
  8. 根据权利要求6所述的车辆远程诊断***，其特征在于，所述控制模块在执行停止远程诊断操作后，继续根据所述车辆电池电压信息，判断所述车辆电池电压是否小于所述预设电压阈值；
    若所述车辆电池电压小于所述预设电压阈值，继续执行停止远程诊断操作；
    若所述车辆电池电压大于或等于所述预设电压阈值，恢复进行远程诊断操作。
  9. 一种车辆远程诊断方法，其特征在于，应用于如权利要求1至8任一项所述的车辆远程诊断***，所述远程VCI设备与所述本地VCI设备之间基于无线网络进行数据传输，所述车辆远程诊断方法包括步骤：
    所述本地VCI设备获取车辆的电池电压信息，并且将所述车辆的电池电压信息传输给所述远程VCI设备；
    所述远程VCI设备接收所述车辆的电池电压信息，并且将所述车辆的电池电压信息发送给车辆电池模拟器；
    所述车辆电池模拟器接收所述车辆的电池电压信息，并且根据所述车辆的电池电压信息模拟所述车辆的电池电压向所述远程VCI设备供电。
  10. 根据权利要求9所述的车辆远程诊断方法，其特征在于，所述车辆电池模拟器包括控制模块及电源模块，所述根据所述车辆的电池电压信息模拟所述车辆的电池电压向所述远程VCI设备供电的步骤，进一步包括：
    所述控制模块根据所述车辆的电池电压信息，向所述电源模块输出对应的控制信号；
    所述电源模块根据所述控制模块输出的控制信号，得到车辆的电池电压，并且将所述车辆的电池电压输出给所述远程VCI设备。
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