WO2022222782A1 - 车辆远程诊断***及方法 - Google Patents
车辆远程诊断***及方法 Download PDFInfo
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- 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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- battery voltage
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- 238000004171 remote diagnosis Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 47
- 238000003745 diagnosis Methods 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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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
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- 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
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- 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
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- 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
Description
Claims (10)
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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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