CN109466473A - Vehicle device fault detection method and device - Google Patents
Vehicle device fault detection method and device Download PDFInfo
- Publication number
- CN109466473A CN109466473A CN201811387411.5A CN201811387411A CN109466473A CN 109466473 A CN109466473 A CN 109466473A CN 201811387411 A CN201811387411 A CN 201811387411A CN 109466473 A CN109466473 A CN 109466473A
- Authority
- CN
- China
- Prior art keywords
- information data
- functional unit
- acquired
- unit
- vehicle device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 230000002159 abnormal effect Effects 0.000 claims abstract description 35
- 230000006870 function Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 18
- 230000008030 elimination Effects 0.000 abstract description 10
- 238000003379 elimination reaction Methods 0.000 abstract description 10
- 230000007257 malfunction Effects 0.000 abstract description 9
- 238000004891 communication Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000008439 repair process Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 208000032368 Device malfunction Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
- B60R16/0234—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions related to maintenance or repairing of vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Traffic Control Systems (AREA)
Abstract
The application provides a kind of vehicle device fault detection method and device, designs vehicle device field of fault detection, which comprises passes through the information data that MCU obtains the power supply unit of vehicle device；Whether the information data by the acquired power supply unit of MCU judgement is normal；If the information data of acquired power supply unit is abnormal, MCU closes power supply unit, and the exception information data of acquired power supply unit are stamped corresponding time label, storage to the first storage unit.Pass through the vehicle device fault detection method and device, it enables to when needing that vehicle device failure is repaired and safeguarded, the exception information data that memory is stored can be directly read, to carry out discriminatory analysis to the failure of vehicle system, reduce malfunction elimination range, improve the efficiency of vehicle device fault detection and maintenance maintenance, effectively save cost.
Description
Technical field
This application involves vehicle failure detection fields, in particular to a kind of vehicle device fault detection method and device.
Background technique
With new energy, car networking, the development of the technologies such as unmanned, the equipment of automobile central control system access is increasingly
It is more, and equipment increases so that equipment also gradually increases in net failure and after-sales service failure, to the detection and dimension of vehicle device failure
More stringent requirements are proposed for shield maintenance.
At present for the detection of vehicle device failure and maintenance and repair, usually after vehicle device breaks down, to what is broken down
Correlation module is dismantled, and the module that failure problems then will be present carries out maintenance and repair or replacement.
However as the reliability requirement of real-time of Automobile operation is higher and higher and automotive electronics complexity increasingly
Height, when reusing existing fault detection and maintenance and repair method, there is higher cost, the low efficiencys of detection and maintenance and repair
Inferior problems are gradually difficult to meet the requirements.
Summary of the invention
The purpose of the application is, in view of the deficiency of the prior art, provides a kind of vehicle device fault detection method, energy
Enough diminution malfunction elimination ranges when vehicle device failure is repaired and safeguard, to improve efficiency and save the cost.
To achieve the above object, technical solution used by the embodiment of the present application is as follows:
In a first aspect, the embodiment of the present application provides a kind of vehicle device fault detection method, which comprises
The information data of the power supply unit of vehicle device is obtained by MCU (Micro Control Unit, micro-control unit)；
Whether the information data by the acquired power supply unit of MCU judgement is normal；
If the information data of acquired power supply unit is abnormal, MCU closes power supply unit, and by acquired power supply unit
Exception information data stamp corresponding time label, storage to the first storage unit.
As described above, if the information data of acquired power supply unit is normal, the method also includes:
The information data of the first functional unit of vehicle device is obtained by MCU；
Whether the information data by the first acquired functional unit of MCU judgement is normal；
If the information data of the first acquired functional unit is abnormal, MCU is by the exception of the first acquired functional unit
Information data stamps corresponding time label, and stores to the first storage unit.
As described above, if the information data of the first acquired functional unit is normal, the method also includes:
The information of the second functional unit of vehicle device is obtained by MPU (Micro Processor Unit, microprocessing unit)
Data；
Whether the information data by the second acquired functional unit of MPU judgement is normal；
If the information data of the second acquired functional unit is abnormal, MPU is by the exception of the second acquired functional unit
Information data stamps corresponding time label, and stores to the second storage unit.
As described above, if the information data of the first acquired functional unit is abnormal, the method also includes:
The exception information data of the first acquired functional unit are reported into MPU by MCU；
MPU closes the first functional unit according to the exception information data of the first functional unit, or by the first functional unit
Exception information data report to server or feedback to display screen.
As described above, if the information data of the second acquired functional unit is abnormal, the method also includes:
MPU closes the second functional unit according to the exception information data of the second functional unit, or by the second functional unit
Exception information data report to server or feedback to display screen.
Second aspect, the embodiment of the present application also provide a kind of vehicle device fault detection means, and described device includes: microcontroller list
First MCU and memory, memory include the first storage unit；
MCU is used to obtain the information data of the power supply unit of vehicle device, and judges the information data of acquired power supply unit
It is whether normal；
If the information data of acquired power supply unit is abnormal, MCU is also used to close power supply unit, and by acquired confession
The exception information data of electric unit stamp time label, storage to the first storage unit.
As described above, MCU is also used to obtain the first function of vehicle device if the information data of acquired power supply unit is normal
The information data of unit, and judge whether the information data of the first acquired functional unit is normal；
If the information data of the first acquired functional unit is abnormal, MCU is also used to the first acquired functional unit
Exception information data stamp corresponding time label, and store to the first storage unit.
As described above, described device further include: microprocessing unit MPU, memory further include the second storage unit；
If the information data of the first acquired functional unit is normal, MPU is used to obtain the second functional unit of vehicle device
Information data, and judge whether the information data of the second acquired functional unit is normal；
If the information data of the second acquired functional unit is abnormal, MPU is also used to the second acquired functional unit
Exception information data stamp corresponding time label, and store to the second storage unit.
As described above, the MCU is also used to will be acquired if the information data of the first acquired functional unit is abnormal
The exception information data of first functional unit report to MPU；
MPU is used for according to the exception information data of the first functional unit, closes the first functional unit, or by the first function list
The exception information data of member report to server or feedback to display screen.
As described above, the MPU is also used to according to the second function if the information data of the second acquired functional unit is abnormal
The exception information data of energy unit, close the second functional unit, or the exception information data of the second functional unit are reported to clothes
Business device or feedback arrive display screen.
The beneficial effect of the application is:
In a first aspect, the vehicle device fault detection method can get the exception information of the power supply unit of vehicle device by MCU
Data, namely detect the fault message of power supply unit, and the exception information data of power supply unit are stamped into time label, storage
To the first storage unit of memory.Due to memory can by external interface communication with the outside world, when needing to vehicle device
When failure is repaired and safeguarded, the abnormal letter of the power supply unit stored in the first storage unit of memory can be directly read
Data are ceased, discriminatory analysis is carried out to the failure of vehicle system, no longer needs to carry out malfunction elimination and detection to power supply unit, thus
Malfunction elimination range is reduced, the efficiency of vehicle device fault detection and maintenance maintenance is improved, is effectively saved cost.
Second aspect, due to the vehicle device fault detection means by vehicle device fault detection method as described in relation to the first aspect come
It realizes the detection to vehicle device failure, therefore has whole beneficial effects described in first aspect, details are not described herein.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of vehicle system provided by the embodiments of the present application；
Fig. 2 is the flow diagram of vehicle device fault detection method provided by the embodiments of the present application；
Fig. 3 is another flow diagram of vehicle device fault detection method provided by the embodiments of the present application；
Fig. 4 is the another flow diagram of vehicle device fault detection method provided by the embodiments of the present application；
Fig. 5 is the flow diagram for the vehicle device fault detection method that the application application example provides；
Fig. 6 is the structural schematic diagram of vehicle device fault detection means provided by the embodiments of the present application；
Fig. 7 is the another structural schematic diagram of vehicle device fault detection means provided by the embodiments of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
The following each embodiments of the application can be applied in vehicle system as shown in Figure 1.As shown in Figure 1, the vehicle device system
System includes: MCU 101, MPU 102, multiple functional units 103, multiple power supply units for corresponding to the power supply of functional unit 103
104, communication module 105 and display screen 106；Functional unit 103 includes the first functional unit and the second functional unit, the first function
Unit connect by bus with MCU 101, and the second functional unit passes through bus and connect with MPU 102, multiple power supply units 104 and
Multiple functional units 103 correspond electrical connection, power for functional unit 103, and multiple power supply units 104 and MCU 101 it
Between be electrically connected.Communication module 105 and display screen 106 are electrically connected with MPU 102 respectively.Wherein, functional unit 103 is vehicle system
In the unit that can carry out various functions, Source Music, cassette tape CD (Compact Disc, CD), DVD (Digital Video
Disc, digital versatile disc) navigation etc..Communication module 105 realizes communication for vehicle system and extraneous (such as server), can
Think 4G module, bluetooth module or Wi-Fi module.Display screen 106 can for automobile middle control display screen or other can show
The screen of information.
Based on vehicle system as shown in Figure 1, the embodiment of the present application provides a kind of vehicle device fault detection method, such as Fig. 2 institute
Show, described method includes following steps:
S110, by MCU obtain vehicle device power supply unit information data.
Specifically, in vehicle system, between MCU and power supply unit by A/D module (Analogue to Digital,
Analog-to-digital conversion) it connects, the analog signal (such as voltage signal or current signal) of power supply unit can be converted to number by A/D module
Signal, MCU can be acquired the digital signal of A/D module by way of automatic regular polling, to realize that MCU obtains vehicle device
The information data of power supply unit.
Optionally, power supply unit is by being provided with the sensor that can acquire power supply unit analog signal.For example, settable
Voltage sensor carrys out collection voltages analog signal, or setting current sensor acquires current analog signal, can also be by setting
The temperature information analog signal etc. for setting temperature sensor to acquire power supply unit.Correspondingly, the letter for the power supply unit that MCU is got
Breath data are then voltage digital signal, current digital signal or the temperature digital signal etc. after the conversion of A/D module.
It should be noted that in some embodiments, the settable one or more different types of sensings of power supply unit
Device, the information data for the power supply unit that MCU is got include above-mentioned voltage digital signal, current digital signal or temperature digital letter
Number one of or it is a variety of, the analog signal for the power supply unit that the type of sensor can acquire as needed is selected, this Shen
Please with no restriction to this.
S120, judge whether the information data of acquired power supply unit is normal by MCU.
Specifically, power supply unit information data preset threshold is preset in MCU, MCU is in the power supply unit for getting vehicle device
Information data (by the digital signal of A/D module conversion) after, the information data of acquired power supply unit and power supply is single
Metamessage data preset threshold compares, and judges that the information data of acquired power supply unit and power supply unit information data are pre-
If whether threshold value meets, that is, realize whether the information data of the acquired power supply unit of judgement is normal.
It illustrates, it is assumed that power supply unit is provided with voltage sensor, and preset power supply unit information data is default in MCU
Threshold value may include: predetermined voltage threshold.Voltage sensor can collect the voltage analog signal of power supply unit, A/D module
Voltage analog signal can be converted to voltage digital signal, MCU is after getting voltage digital signal, by acquired voltage
Digital signal is compared with predetermined voltage threshold, it can be determined that whether normal obtains acquired voltage digital signal.Wherein,
Predetermined voltage threshold can include: first voltage threshold value and second voltage threshold value, and second voltage threshold value is greater than first voltage threshold value,
Voltage digital signal acquired in judging as MCU is more than or equal to above-mentioned first voltage threshold value, and is less than or equal to above-mentioned second voltage
When threshold value, then it is assumed that voltage digital signal is normal, otherwise, regards as exception.For example, settable first voltage threshold value is 4.5 volts,
Second voltage threshold value is 5.5 volts, then voltage value satisfaction representated by the acquired voltage digital signal of MCU judgement is more than or equal to
4.5, and be less than or equal to 5.5 when, it is believed that voltage digital signal is normal；Representated by the acquired voltage digital signal of MCU judgement
Voltage value not between 4.5 to 5.5 when, regard as exception.
If the information data of S130, acquired power supply unit is abnormal, MCU closes power supply unit, and by acquired confession
The exception information data of electric unit stamp corresponding time label, storage to the first storage unit.
Specifically, it is electrically connected between MCU and power supply unit, the memory connecting with MCU is additionally provided in vehicle system, this is deposited
The external interface of communication with the outside world is additionally provided on reservoir.When the information data that MCU judges to obtain acquired power supply unit is abnormal
When, MCU sends control signal to power supply unit, and control power supply unit is closed, and by the exception information of acquired power supply unit
Data stamp time label, and the first storage unit of memory is arrived in storage.Wherein, time label can be the different of confession under directions electric unit
The time of normal information data appearance and duration etc..
From the above mentioned, which can get the exception information of the power supply unit of vehicle device by MCU
Data, namely detect the fault message of power supply unit, and the exception information data of power supply unit are stamped into time label, storage
To the first storage unit of memory.Due to memory can by external interface communication with the outside world, when needing to vehicle device
When failure is repaired and safeguarded, the abnormal letter of the power supply unit stored in the first storage unit of memory can be directly read
Data are ceased, discriminatory analysis is carried out to the failure of vehicle system, no longer needs to carry out malfunction elimination and detection to power supply unit, thus
Malfunction elimination range is reduced, the efficiency of vehicle device fault detection and maintenance maintenance is improved, is effectively saved cost.
As shown in figure 3, in above-mentioned vehicle device fault detection method, if the information data of acquired power supply unit is normal,
The method also includes:
S140, by MCU obtain vehicle device the first functional unit information data.
Specifically, the first functional unit of vehicle device refers in the functional unit of vehicle system, is connect with MCU by bus
Partial function unit.When the information data of the power supply unit acquired in the MCU is normal, MCU continues through bus and directly acquires
The information data of first functional unit of vehicle device.
S150, judge whether the information data of the first acquired functional unit is normal by MCU.
Specifically, the first functional unit information data preset threshold is also preset in MCU, MCU is getting the first function
After the information data of unit, the information data of the first acquired functional unit and the first functional unit information data are preset into threshold
Value compares, and judges that the information data of the first acquired functional unit is with the first functional unit information data preset threshold
It is no to meet, that is, realize whether the information data of the first acquired functional unit of judgement is normal.
If the information data of S160, the first acquired functional unit is abnormal, MCU is by the first acquired functional unit
Exception information data stamp corresponding time label, and store to the first storage unit.
Specifically, when MCU judges to obtain the information data exception of the first acquired functional unit, MCU will be acquired
The exception information data of the first functional unit stamp corresponding time label (the exception information data of such as the first functional unit go out
The existing time and duration), and it is stored to the first storage unit of memory.
From the above mentioned, in the vehicle device fault detection method, MCU can be successively to the power supply unit of vehicle device and the first function list
Member carries out fault detection and is stored to and deposits if detecting the exception information data in power supply unit or the first functional unit
First storage unit of reservoir, so that the first storage can be directly read when needing that vehicle device failure is repaired and safeguarded
The exception information data in power supply unit or the first functional unit stored in unit, to sentence to the failure of vehicle system
Disconnected analysis no longer needs to carry out malfunction elimination and detection to power supply unit and the first functional unit, has further reduced malfunction elimination
Range, and the efficiency of vehicle device fault detection and maintenance maintenance is significantly improved, save cost.
In one embodiment, if the information data of the first acquired functional unit is abnormal, the method also includes:
The exception information data of the first acquired functional unit are reported into MPU by MCU, MPU is different according to the first functional unit
Normal information data closes the first functional unit, or the exception information data of the first functional unit is reported to server or feedback
To display screen.
Specifically, it is connected between MCU and MPU by bus, MCU is in the exception information data for getting the first functional unit
Afterwards, the exception information data of the first functional unit are reported into MPU, MPU can be according to the exception of the first functional unit received
Information data selects following any operation to execute:
1) the first functional unit is closed；
For example, MPU closes the control signal of the first functional unit by sending to MCU, MCU believes according to the control received
Number, the first functional unit of control is closed.In addition, MPU can also be connect with the first functional unit, the first functional unit pass is directly controlled
It closes, the application is not specially limited herein.
2) the exception information data of the first functional unit are reported into server；
The exception information data of first functional unit can also be reported to background server by communication module by MPU, by rear
Platform server issues respective handling instruction.
3) by the exception information data feedback of the first functional unit to display screen；
When MPU by the exception information data feedback of the first functional unit to display screen after, occupant can view aobvious
About the exception information data of the first functional unit shown by display screen, to make relevant treatment to it.
4) it is not processed.
MPU can also the part exception information data to the first functional unit be not processed, only the of storage to memory
In one storage unit, relevant issues are reprocessed when needing to repair maintenance to vehicle device.
As shown in figure 4, in above-mentioned vehicle device fault detection method, if the information data of the first acquired functional unit is just
Often, the method also includes:
S170, by MPU obtain vehicle device the second functional unit information data.
Specifically the second functional unit of vehicle device refers in the functional unit of vehicle system, is connect with MPU by bus
Partial function unit.When the information data of the first functional unit acquired in the MCU is normal, MPU is directly acquired by bus
The information data of second functional unit of vehicle device.
S180, judge whether the information data of the second acquired functional unit is normal by MPU.
Specifically, the second functional unit information data preset threshold is also preset in MPU, MPU is getting the second function
After the information data of unit, the information data of the second acquired functional unit and the second functional unit information data are preset into threshold
Value compares, and judges that the information data of the second acquired functional unit is with the second functional unit information data preset threshold
It is no to meet, that is, realize whether the information data of the second acquired functional unit of judgement is normal.
If the information data of S190, the second acquired functional unit is abnormal, MPU is by the second acquired functional unit
Exception information data stamp corresponding time label, and store to the second storage unit.
Specifically, when MPU judges to obtain the information data exception of the second acquired functional unit, MPU will be acquired
The exception information data of the second functional unit stamp corresponding time label (the exception information data of such as the second functional unit go out
The existing time and duration), and it is stored to the second storage unit of memory.It should be noted that the second of memory deposits
Storing data is not interfere with each other respectively for storage unit and the first storage unit, only mutually with the data for guaranteeing that MCU and MPU are stored respectively
It is vertical.
In conclusion in vehicle device fault detection method provided by the embodiments of the present application, firstly, power supply list of the MCU to vehicle device
Member carries out fault detection, and the exception information data for the power supply unit that will acquire are stored to the first storage unit of memory；When
When the information data of power supply unit is normal, MCU continues to carry out fault detection to the first functional unit of vehicle device, and will acquire the
The exception information data of one functional unit are stored to the first storage unit of memory；When the first functional unit information data just
Chang Shi, MPU continue to carry out fault detection to the second functional unit of vehicle device, and the exception information data of the second functional unit are deposited
It stores up to the second storage unit of memory.Therefore, when needing that vehicle device failure is repaired and safeguarded, storage can directly be passed through
The external interface of device reads the exception information data stored in the first storage unit and the second storage unit, and according to being stored
Exception information data to carry out discriminatory analysis to the failure of vehicle system, no longer need to power supply unit, the first functional unit and
Second functional unit carries out malfunction elimination and detection significantly mentions to reduce investigation range when vehicle system fault detection
The high efficiency of vehicle device fault detection and maintenance maintenance, and saved cost.
As described above, in one embodiment, if the information data of the second acquired functional unit is abnormal, the side
Method further include: MPU closes the second functional unit according to the exception information data of the second functional unit, or by the second functional unit
Exception information data report to server or feedback to display screen.
It should be noted that carrying out failure to vehicle system in the vehicle device fault detection method provided by the embodiments of the present application
In detection process, if vehicle system power-off or shutdown, MCU and MPU can receive shutdown or power-off signal, and in time will be last
Abnormal data information in accessed vehicle system is sent to memory and is stored.
To make vehicle device fault detection method provided by the application previous embodiment, described technical solution and advantage are more
Add clear, the application passes through an application example herein and remarks additionally to it.
Application example:
As shown in figure 5, this application example provides a kind of vehicle device fault detection method, include the following steps:
S210, MCU obtain the information data of the power supply unit of vehicle device.
Whether the information data of the acquired power supply unit of S220, MCU judgement is normal；If the letter of acquired power supply unit
It is normal to cease data, executes step S240, otherwise, executes step S230.
S230, MCU close power supply unit, and the exception information data of acquired power supply unit are stamped the corresponding time
Label, storage to the first storage unit.
S240, MCU obtain the information data of the first functional unit of vehicle device.
Whether the information data of the first acquired functional unit of S250, MCU judgement is normal；If the first acquired function
The information data of unit is normal, executes step S270, otherwise, executes step S260, step S261 and step S262 respectively.
The exception information data of the first acquired functional unit are stamped corresponding time label by S260, MCU, and are stored
To the first storage unit.
The exception information data of the first acquired functional unit are reported to MPU by S261, MCU.
S262, MPU close the first functional unit according to the exception information data of the first functional unit, or by the first function
The exception information data of unit report to server or feedback to display screen.
S270, MPU obtain the information data of the second functional unit of vehicle device.
Whether the information data of the second acquired functional unit of S280, MPU judgement is normal, if the second acquired function
The information data of unit is normal, then terminates, and otherwise, executes step S290 and S291 respectively.
The exception information data of the second acquired functional unit are stamped corresponding time label by S290, MPU, and are stored
To the second storage unit.
S291, MPU close the second functional unit according to the exception information data of the second functional unit, or by the second function
The exception information data of unit report to server or feedback to display screen.
Vehicle device fault detection method provided by this application example, can be to power supply unit, the first function in vehicle system
Energy unit and the second functional unit successively carry out fault detection, and after detecting exception information data, exception information data are deposited
Store up corresponding first storage unit or the second storage unit, so as to need to vehicle device breakdown maintenance and maintenance when, directly
The external interface for connecting memory reads the exception information data stored in the first storage unit and the second storage unit, judgement
The unit to break down out reduces vehicle device malfunction elimination range, can effectively improve the efficiency of vehicle device fault detection, and saves
Cost.In addition, during the vehicle device fault detection method carries out fault detection to vehicle system, can also by MCU or
MPU is reported or is handled to corresponding exception information data, and the security performance of vehicle system is further improved.
As shown in fig. 6, the embodiment of the present application also provides a kind of vehicle device fault detection means, comprising: MCU 310 and memory
320, memory 320 includes the first storage unit 321；MCU 310 is used to obtain the information data of the power supply unit of vehicle device, and sentences
Whether the information data of the power supply unit acquired in breaking is normal；If the information data of acquired power supply unit is abnormal, MCU 310
It is also used to close power supply unit, and the exception information data of acquired power supply unit is stamped into time label, storage to first
Storage unit 321.
As described above, MCU 310 is also used to obtain the first of vehicle device if the information data of acquired power supply unit is normal
The information data of functional unit, and judge whether the information data of the first acquired functional unit is normal；If acquired
The information data of one functional unit is abnormal, and MCU 310 is also used to beat the exception information data of the first acquired functional unit
Upper corresponding time label, and store to the first storage unit 321.
As shown in fig. 7, vehicle device fault detection means further include: MPU 330, memory 320 further include the second storage unit
322；If the information data of the first acquired functional unit is normal, MPU 330 is used to obtain the second functional unit of vehicle device
Information data, and judge whether the information data of the second acquired functional unit is normal；If the second acquired functional unit
Information data it is abnormal, when MPU 330 is also used to the exception information data of the second acquired functional unit stamping corresponding
Between mark, and store to the second storage unit 322.
In one embodiment, if the information data of the first acquired functional unit is abnormal, the MCU 310 is also used
In the exception information data of the first acquired functional unit are reported to MPU 330；MPU 330 is used for according to the first function list
The exception information data of member close the first functional unit, or the exception information data of the first functional unit are reported to server
Or feedback arrives display screen.If the information data of the second acquired functional unit is abnormal, the MPU 330 is also used to according to second
The exception information data of functional unit close the second functional unit, or the exception information data of the second functional unit are reported to
Server or feedback arrive display screen.
Optionally, in the vehicle device fault detection means provided by the embodiment of the present application, memory 320 is non-volatile deposits
Reservoir, when driving skills system cut-off, all exception information data still can be completely retained in memory 320.
The vehicle device fault detection means, passes through vehicle described in preceding method embodiment as provided by the embodiment of the present application
Machine fault detection method carries out fault detection to vehicle system, therefore it is as described in the examples all beneficial to effect to have preceding method
Fruit, details are not described herein by the application.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of vehicle device fault detection method, which is characterized in that the described method includes:
The information data of the power supply unit of vehicle device is obtained by micro-control unit MCU；
Whether the information data by the acquired power supply unit of MCU judgement is normal；
If the information data of acquired power supply unit is abnormal, MCU closes said supply unit, and by acquired power supply unit
Exception information data stamp corresponding time label, storage to the first storage unit.
2. vehicle device fault detection method according to claim 1, which is characterized in that if the information of acquired power supply unit
Data are normal, the method also includes:
The information data of the first functional unit of vehicle device is obtained by MCU；
Whether the information data by the first acquired functional unit of MCU judgement is normal；
If the information data of the first acquired functional unit is abnormal, MCU is by the exception information of the first acquired functional unit
Data stamp corresponding time label, and store to the first storage unit.
3. vehicle device fault detection method according to claim 2, which is characterized in that if the first acquired functional unit
Information data is normal, the method also includes:
The information data of the second functional unit of vehicle device is obtained by microprocessing unit MPU；
Whether the information data by the second acquired functional unit of MPU judgement is normal；
If the information data of the second acquired functional unit is abnormal, MPU is by the exception information of the second acquired functional unit
Data stamp corresponding time label, and store to the second storage unit.
4. vehicle device fault detection method according to claim 2, which is characterized in that if the first acquired functional unit
Information data is abnormal, the method also includes:
The exception information data of the first acquired functional unit are reported into MPU by MCU；
MPU closes first functional unit according to the exception information data of first functional unit, or by first function
The exception information data of energy unit report to server or feedback to display screen.
5. vehicle device fault detection method according to claim 3, which is characterized in that if the second acquired functional unit
Information data is abnormal, the method also includes:
MPU closes second functional unit according to the exception information data of second functional unit, or by second function
The exception information data of energy unit report to server or feedback to display screen.
6. a kind of vehicle device fault detection means, which is characterized in that described device includes: micro-control unit MCU and memory, described
Memory includes the first storage unit；
The MCU is used to obtain the information data of the power supply unit of vehicle device, and judges the information data of acquired power supply unit
It is whether normal；
If the information data of acquired power supply unit is abnormal, the MCU is also used to close said supply unit, and will be acquired
The exception information data of power supply unit stamp corresponding time label, first storage unit is arrived in storage.
7. vehicle device fault detection means according to claim 6, which is characterized in that if the information of acquired power supply unit
Data are normal, and the MCU is also used to obtain the information data of the first functional unit of vehicle device, and judges the first acquired function
Whether the information data of unit is normal；
If the information data of the first acquired functional unit is abnormal, the MCU is also used to the first acquired functional unit
Exception information data stamp corresponding time label, and store and arrive first storage unit.
8. vehicle device fault detection means according to claim 7, which is characterized in that described device further include: micro process list
First MPU, the memory further include the second storage unit；
If the information data of the first acquired functional unit is normal, the MPU is used to obtain the second functional unit of vehicle device
Information data, and judge whether the information data of the second acquired functional unit is normal；
If the information data of the second acquired functional unit is abnormal, the MPU is also used to the second acquired functional unit
Exception information data stamp corresponding time label, and store and arrive second storage unit.
9. vehicle device fault detection means according to claim 8, which is characterized in that if the first acquired functional unit
Information data is abnormal, and the MCU is also used to the exception information data of the first acquired functional unit reporting to the MPU；
The MPU is used for according to the exception information data of first functional unit, closes first functional unit, or by institute
The exception information data for stating the first functional unit report to server or feedback to display screen.
10. vehicle device fault detection means according to claim 8, which is characterized in that if the second acquired functional unit
Information data it is abnormal, the MPU is also used to the exception information data according to second functional unit, closes second function
Energy unit, or the exception information data of second functional unit are reported into server or feedback to display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387411.5A CN109466473B (en) | 2018-11-20 | 2018-11-20 | Vehicle machine fault detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387411.5A CN109466473B (en) | 2018-11-20 | 2018-11-20 | Vehicle machine fault detection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109466473A true CN109466473A (en) | 2019-03-15 |
| CN109466473B CN109466473B (en) | 2021-05-28 |
Family
ID=65673871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811387411.5A Active CN109466473B (en) | 2018-11-20 | 2018-11-20 | Vehicle machine fault detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109466473B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111447105A (en) * | 2020-03-11 | 2020-07-24 | 湖北亿咖通科技有限公司 | Vehicle machine testing method and readable storage medium |
| CN112486054A (en) * | 2020-10-29 | 2021-03-12 | 惠州市德赛西威汽车电子股份有限公司 | Device and method for controlling on-off of signal |
| CN114148271A (en) * | 2021-12-21 | 2022-03-08 | 宁波弗浪科技有限公司 | Detection control system of car machine system |
| CN114252281A (en) * | 2021-08-24 | 2022-03-29 | 佛山市顺德区美的饮水机制造有限公司 | Detection device, control method and control device thereof, and readable storage medium |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060020380A1 (en) * | 2000-10-13 | 2006-01-26 | Hitachi, Ltd. | On-vehicle breakdown-warning report system |
| JP2007112303A (en) * | 2005-10-20 | 2007-05-10 | Toyota Motor Corp | Failure diagnosing system |
| JP2013119293A (en) * | 2011-12-07 | 2013-06-17 | Toyota Motor Corp | Failure diagnosis device for vehicle |
| EP2892199A1 (en) * | 2014-01-06 | 2015-07-08 | Argus Cyber Security Ltd. | Global automotive safety system |
| CN106274531A (en) * | 2016-08-26 | 2017-01-04 | 北京长城华冠汽车科技股份有限公司 | Fault handling method and device |
| CN206133298U (en) * | 2016-09-14 | 2017-04-26 | 北京汽车股份有限公司 | Failure logging device and this failure logging has device for car |
| CN206217810U (en) * | 2016-10-17 | 2017-06-06 | 宝沃汽车（中国）有限公司 | The remote monitoring diagnostic system of vehicle termination, vehicle and vehicle |
| US20170365108A1 (en) * | 2016-04-28 | 2017-12-21 | International Business Machines Corporation | On-road vehicle service handling method |
| CN108248549A (en) * | 2018-01-30 | 2018-07-06 | 北京汽车股份有限公司 | Vehicle-mounted passenger identifying system, vehicle and vehicle-mounted passenger recognition methods |
| CN108437802A (en) * | 2018-04-04 | 2018-08-24 | 张子渲 | A kind of new-energy automobile for capableing of intelligent decision accumulator failure |
| CN108688558A (en) * | 2017-04-11 | 2018-10-23 | 江苏卡威汽车工业集团股份有限公司 | A kind of pure electric automobile fault detection system |
-
2018
- 2018-11-20 CN CN201811387411.5A patent/CN109466473B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060020380A1 (en) * | 2000-10-13 | 2006-01-26 | Hitachi, Ltd. | On-vehicle breakdown-warning report system |
| JP2007112303A (en) * | 2005-10-20 | 2007-05-10 | Toyota Motor Corp | Failure diagnosing system |
| JP2013119293A (en) * | 2011-12-07 | 2013-06-17 | Toyota Motor Corp | Failure diagnosis device for vehicle |
| EP2892199A1 (en) * | 2014-01-06 | 2015-07-08 | Argus Cyber Security Ltd. | Global automotive safety system |
| US20170365108A1 (en) * | 2016-04-28 | 2017-12-21 | International Business Machines Corporation | On-road vehicle service handling method |
| CN106274531A (en) * | 2016-08-26 | 2017-01-04 | 北京长城华冠汽车科技股份有限公司 | Fault handling method and device |
| CN206133298U (en) * | 2016-09-14 | 2017-04-26 | 北京汽车股份有限公司 | Failure logging device and this failure logging has device for car |
| CN206217810U (en) * | 2016-10-17 | 2017-06-06 | 宝沃汽车（中国）有限公司 | The remote monitoring diagnostic system of vehicle termination, vehicle and vehicle |
| CN108688558A (en) * | 2017-04-11 | 2018-10-23 | 江苏卡威汽车工业集团股份有限公司 | A kind of pure electric automobile fault detection system |
| CN108248549A (en) * | 2018-01-30 | 2018-07-06 | 北京汽车股份有限公司 | Vehicle-mounted passenger identifying system, vehicle and vehicle-mounted passenger recognition methods |
| CN108437802A (en) * | 2018-04-04 | 2018-08-24 | 张子渲 | A kind of new-energy automobile for capableing of intelligent decision accumulator failure |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111447105A (en) * | 2020-03-11 | 2020-07-24 | 湖北亿咖通科技有限公司 | Vehicle machine testing method and readable storage medium |
| CN111447105B (en) * | 2020-03-11 | 2021-07-06 | 湖北亿咖通科技有限公司 | Vehicle machine testing method and readable storage medium |
| CN112486054A (en) * | 2020-10-29 | 2021-03-12 | 惠州市德赛西威汽车电子股份有限公司 | Device and method for controlling on-off of signal |
| CN112486054B (en) * | 2020-10-29 | 2024-08-02 | 惠州市德赛西威汽车电子股份有限公司 | Device and method for controlling signal on-off |
| CN114252281A (en) * | 2021-08-24 | 2022-03-29 | 佛山市顺德区美的饮水机制造有限公司 | Detection device, control method and control device thereof, and readable storage medium |
| CN114252281B (en) * | 2021-08-24 | 2024-03-12 | 佛山市顺德区美的饮水机制造有限公司 | Detection device, control method and control device thereof, and readable storage medium |
| CN114148271A (en) * | 2021-12-21 | 2022-03-08 | 宁波弗浪科技有限公司 | Detection control system of car machine system |
| CN114148271B (en) * | 2021-12-21 | 2024-03-01 | 宁波弗浪科技有限公司 | Detection control system of car machine system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109466473B (en) | 2021-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109466473A (en) | Vehicle device fault detection method and device | |
| CN112798951B (en) | Fault processing method and device, electronic equipment and storage medium | |
| CN110298973A (en) | The charging module of mobile power source leased equipment and its data transmission method between mobile power source | |
| CN112034818B (en) | Controller fault analysis method and system | |
| CN104317709A (en) | Method and system for testing performance of software | |
| CN108170133A (en) | A kind of remote fault diagnosis method and system | |
| CN102945652A (en) | Method and system for solving abnormal display of display screen | |
| CN103581747A (en) | Display apparatus and method for detecting error from voltage thereof | |
| CN111813590B (en) | Method and device for diagnosing abnormal reset of main control module and main control module | |
| CN110502345A (en) | A kind of overload protection method, device, computer equipment and storage medium | |
| CN102270868A (en) | Recording system, recording method and machine readable program storage device | |
| CN111055685A (en) | Interactive simulation charging test system and test method | |
| CN1983204A (en) | Device and method for correcting and repairing BIOS function by LPC interface | |
| CN104881341A (en) | Server as well as testing method and system for computer hard disk | |
| CN211348466U (en) | Pantograph fault detection and analysis system | |
| CN102290866B (en) | Control method and control system of intelligent releaser | |
| CN107168299A (en) | A kind of method and system of charging pile fault diagnosis processing | |
| CN111243488A (en) | Display device and power protection method thereof | |
| CN105892449A (en) | OBD (on-board diagnostics) interface-based vehicle diagnosis and processing method | |
| CN110194112A (en) | The control method and device of electric vehicle, storage medium, electronic equipment | |
| CN115743002A (en) | Method and device for monitoring abnormal restart of vehicle-mounted instrument | |
| CN113613239B (en) | Network mode switching method, network mode switching device, medium, and electronic device | |
| CN109507507A (en) | Adapter detection method, device, storage medium, test board and detection system | |
| CN109733198A (en) | Main contactor adhesion detection method and device, electrokinetic cell system, vehicle | |
| CN108063708A (en) | A kind of CAN communication loses method for diagnosing faults and electronic control unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220324 Address after: 430090 No. b1336, chuanggu startup area, taizihu cultural Digital Creative Industry Park, No. 18, Shenlong Avenue, Wuhan Economic and Technological Development Zone, Hubei Province Patentee after: Yikatong (Hubei) Technology Co.,Ltd. Address before: 430000 no.c101, chuanggu start up area, taizihu cultural Digital Industrial Park, No.18 Shenlong Avenue, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: HUBEI ECARX TECHNOLOGY Co.,Ltd. |