CN107688309A - A kind of windshield wiper trouble-shooter and fault diagnosis and restorative procedure - Google Patents
A kind of windshield wiper trouble-shooter and fault diagnosis and restorative procedure Download PDFInfo
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- CN107688309A CN107688309A CN201710763474.5A CN201710763474A CN107688309A CN 107688309 A CN107688309 A CN 107688309A CN 201710763474 A CN201710763474 A CN 201710763474A CN 107688309 A CN107688309 A CN 107688309A
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000012545 processing Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 1
- 238000013480 data collection Methods 0.000 abstract description 4
- 230000001427 coherent effect Effects 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 17
- 230000015654 memory Effects 0.000 description 7
- 241000271559 Dromaiidae Species 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000020509 sex determination Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
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- 238000007790 scraping Methods 0.000 description 2
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- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
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- 230000006837 decompression Effects 0.000 description 1
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- 230000001788 irregular Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
- G01R19/2509—Details concerning sampling, digitizing or waveform capturing
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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
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
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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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0283—Predictive maintenance, e.g. involving the monitoring of a system and, based on the monitoring results, taking decisions on the maintenance schedule of the monitored system; Estimating remaining useful life [RUL]
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2604—Test of external equipment
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2637—Vehicle, car, auto, wheelchair
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- Physics & Mathematics (AREA)
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- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
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- Testing And Monitoring For Control Systems (AREA)
Abstract
The invention provides a kind of windshield wiper trouble-shooter, windshield wiper includes windshield wiper control device, windshield wiper gas control unit, windshield wiper input signal setter and windshield wiper performs device, the diagnostic device is connected by connector with windshield wiper control device and windshield wiper input signal setter by connector, the diagnostic device includes to gather the input/output signal of the windshield wiper control device and carrying out analysis judging detection module and being replaced the replacement control module so that windshield wiper normal operation to the obstacle signal in the input/output signal of the windshield wiper control device.Invention further provides windshield wiper fault diagnosis and restorative procedure.A kind of windshield wiper trouble-shooter and diagnosis and restorative procedure provided by the invention, windshield wiper normal work can not be influenceed while automatic data collection windshield wiper coherent signal progress fault analysis and judgement.
Description
Technical field
The present invention relates to field of traffic, and in particular to a kind of windshield wiper trouble-shooter and fault diagnosis and reparation
Method.
Background technology
Hand over and can constantly improve with track, EMUs are with its distinctive high speed, the also increasing selection of people's trip
EMUs, EMUs undergo various weather conditions unavoidably into running in journey, if sleet, airborne dust are, it is necessary to the front window of drivers' cab
Windshield wiper is installed on glass, through ensuring that driver can accurately pay close attention to front road conditions and traffic signals at any time, but existing frequently-used scraped
Rain device, more to be controlled using the empty united mode of electricity, logic control is complicated, and windshield wiper is in vehicle operation if gone out
, it is necessary to detect failure Producing reason and overhauled, this maintenance usually requires in parking especially in EMUs existing failure
It can be overhauled after into overhaul shop, because the control of windshield wiper and executing agency's installing space are narrow and small, overhauled
Trouble is frequently encountered in journey, while is limited to construction space problem, causes the various DATA REASONINGs in detection process difficult, pin
Collection inconvenience to analog signal and data signal, the collection for analog signal and data signal is constant, causes breakdown judge
Inaccuracy, simultaneously as simultaneously troubleshooting to failure can not overhaul in time, it is dangerous to will also result in driving.
The content of the invention
Present invention is primarily aimed at solve the above problems and deficiency, there is provided a kind of windshield wiper trouble-shooter with
The diagnosis of windshield wiper failure and restorative procedure, on the premise of windshield wiper normal work is not influenceed, automatic data collection windshield wiper is related
Signal carries out analysis judgement, with the purpose for reaching simplified windshield wiper fault diagnosis and recovering function.
To achieve the above object, present invention firstly provides a kind of windshield wiper trouble-shooter, its technical scheme to be：
A kind of EMUs windshield wiper trouble-shooter, windshield wiper include windshield wiper control device, windshield wiper gas control list
Member, windshield wiper input signal setter and windshield wiper performs device, the diagnostic device are controlled by connector and windshield wiper
Device is connected with windshield wiper input signal setter by connector, and the diagnostic device includes that the windshield wiper can be gathered
The input/output signal of control device and carry out analysis judge detection module and can be to the windshield wiper control device input it is defeated
The fault-signal gone out in signal is replaced the replacement control module so that windshield wiper normal operation.
Further, the detection module includes：
Data acquisition module, gathers the input/output signal of the windshield wiper control device, and transmits a signal to control
Module is detected and judged；
Control module, receive the data and adopt the various types of signal of module collection, and detected and judged, determine various
Whether normal input/output signal is, and exports result of determination to output module；
Output module：The result of determination and signal data of receive and control module, show and preserve；
Power module：Electric power is provided for diagnostic device.
Further, the data acquisition module includes that the output signal and biography of the windshield wiper control device can be gathered
The analog acquisition unit of the control module is given, the input signal of the windshield wiper control device can be gathered and sent to
The digital data acquisition unit of the control module, signal can be filtered and anti-interference process after carry out signal analysis and place
The signal processing unit of reason.
Further, the analog acquisition unit, the output that windshield wiper control device is gathered using voltage transmitter are believed
Number magnitude of voltage, and be low-voltage signal by its linear voltage decreasing, send the control module to.
Further, the signal processing unit is filtered using Schmidt's inverter trigger and electric capacity to low-voltage signal
Signal analysis and processing is carried out after ripple and anti-interference process.
Further, the power module includes providing the Voltage stabilizing module of stabilized power source for single-chip microcomputer, provided for main circuit
The circuit protection module of circuit protection, the Voltage stabilizing module are filtered by the way of shunt capacitance.
Further, the control module and the display module use switching regulator, and the data acquisition module is adopted
Use low pressure difference linear voltage regulator.
Further, the diagnostic device, windshield wiper control device and windshield wiper input signal setter pass through threeway
Connector is connected, and the diagnostic device, windshield wiper control device and windshield wiper performs device are connected by three-way connector.
Can be in windshield wiper running or maintenance process, to enter to windshield wiper failure invention further provides one kind
Row efficient diagnosis with and repaired not influence the method for windshield wiper normal operation, adopt the following technical scheme that：
A kind of windshield wiper fault diagnosis and restorative procedure, previously described trouble-shooter and windshield wiper are utilized into company
Device connection is connect, data acquisition unit digital collection unit gathers the input/output signal of windshield wiper control device, control module pair
Each signal is measured, and the instantaneous value of switching value is sent into output module, is shown and is stored, when discovery windshield wiper
When the dispaly state of on-off state and output module on control panel is inconsistent, then it can determine that event occurs for corresponding switch
Barrier, output module send a signal to replacement control module, are replaced fault-signal using corresponding signal of replacing, blow rain
Device recovers normal operation, confirms that switch breaks down corresponding to the signal, and switch corresponding to windshield wiper is carried out during parking maintenance
Repair.
Further, when 1.4 magnetic valves of windshield wiper have manage failure need carry out signal replacement when, open 100v voltages
Master switch is replaced, the 100v power supplys that windshield wiper control device is inputted are signal-powered to output replacement, then beaten on display panel
Open 1.4 voltages and replace switch, while windshield wiper control device and 1.4 magnetic valves are disconnected, signal access will be replaced, finally
Knob is replaced in governing speed regulation, to 1.4 solenoid valves；
When the switch of windshield wiper input signal setter, which breaks down, needs to carry out the replacement of the signal, press defeated
Go out touch switch corresponding to device, realize that the original signal for the switch for first making failure disconnects, then will replace in control module
Corresponding space signal introduce；
When windshield wiper control device magnetic valve break down, it is necessary to when carrying out the replacement of magnitude of voltage, press output device
Corresponding signal replaces button, realizes the disconnection of original output voltage, if necessary to replace upper electricity, is then closed again upper electrical switch.
In summary, a kind of windshield wiper trouble-shooter and fault diagnosis and restorative procedure provided by the invention, with showing
There is technology to compare, have the following advantages that：
1. automatic data collection windshield wiper analog signalses and digital quantity signal simultaneously carry out windshield wiper whether the analysis of failure are sentenced
It is disconnected, and feature replacement is carried out according to analysis judged result, the detection and reparation of windshield wiper failure can be carried out in real time, do not influenceed
Windshield wiper normal work；
2. automatically derived fault diagnosis result, need to manually be gathered instead of analog signal in the prior art and data signal and
Analysis, fast and accurately failure judgement point and real-time instruction site operation personnel it can carry out accident analysis and processing, saving people
Work；
Control module is substituted 3. providing, after maintenance is out of order, can directly replace the trouble unit in windshield wiper, in time row
Look into failure, there is provided traffic safety.
Brief description of the drawings：
Fig. 1：A kind of windshield wiper trouble-shooter hardware composition structural representation of the present invention
Fig. 2：A kind of data flow diagram of windshield wiper trouble-shooter of the present invention；
Fig. 3：A kind of windshield wiper trouble-shooter internal data flow diagram of the present invention；
Wherein：Data acquisition module 1, power module 2, display module 3, control module 4, analog acquisition unit 5, number
Word amount collecting unit 6, signal processing module 7, Voltage stabilizing module 8, circuit protection module 9, display screen 10, detection module 11, function
Button 12, input signal setter 13, functional select switch 14, master switch 15, car wash mode switch 16,5km speed are opened
17 are closed, windshield wiper control device 18, windshield wiper performs device 19, replaces control module 20
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
The invention provides a kind of windshield wiper trouble-shooter, windshield wiper includes windshield wiper control device 18, windshield wiper
Gas control unit, windshield wiper input signal setter 13 and windshield wiper performs device 19, diagnostic device is by connector and blows rain
Device control device 18 and windshield wiper input signal setter 13 connect, and diagnostic device includes detection module 11 and replaced to control
The input/output signal of windshield wiper control device 18 is transferred to detection module 11 and carries out function judgement, replaced by module 20, connector
Change control module 20 and control is replaced to the correlation module for producing the windshield wiper of failure according to result of determination.
Windshield wiper include windshield wiper control device 18, windshield wiper gas control unit, windshield wiper input signal setter 13 and
Windshield wiper performs device 19, windshield wiper input signal setter 13 includes functional select switch 14 (four switches), master control is opened
15, car wash mode switch 16,5km speed switches 17 are closed, is connected by X03 ports with windshield wiper control device 18, to windshield wiper
Control device 18 is controlled operation, and windshield wiper control device 18 passes through the windshield wiper performs device 19 that is connected with X01 ports
Drive device S04 carries out transmission control to windshield wiper, the electric control gear for the windshield wiper performs device 19 being connected by X02 ports
S06 to the 1.5/1 of windshield wiper control device 18 park electric magnetic valve, 1.5/2 scrape magnetic valve, 1.5/3 middle magnetic valve and
1.4 electromagnetic proportional valve output voltages enter row mode and speed output control, annexation between each functional module of windshield wiper and
Concrete structure is configured to prior art, the windshield wiper of the different model or control method (structure is different) that are likely to occur in the future
The technology of the present invention is equally applicable, does not require and limits herein.
Windshield wiper trouble-shooter selects microcomputer development, and single-chip microcomputer uses high performance 32 kernels, working frequency
For 70MHz, internal high-speed memories, abundant increase I/O ports and the outward appearance for being connected to two APB buses, 3 12 are included
ADC, 4 general 16 bit timing devices and the 2 PWM timers of position, are 2.0V to 3.6V for piezoelectric voltage, have a series of province
Power mode, the requirement of low-power consumption application can be ensured.As shown in figure 1, mainly include detection module 11 and replace control module
20, wherein detection module 11 includes：
Data acquisition module 1, gathers all kinds of input/output signals of the windshield wiper control device 18, and signal is passed
It is defeated by control module 4 and carries out detection and function sex determination, including three parts, Part I is analog acquisition unit 5, are adopted
Collect the output signal of windshield wiper control device 18, the magnitude of voltage of each magnetic valve is mainly gathered using voltage transmitter, by its line
Property decompression low-voltage signal, send control module 4 to, in the present embodiment, AD values collection using connect translative mode, continuous
In translative mode, when at once ADC conversions above start another conversion once end；Part II is digital data acquisition list
Member 6, is mainly used in gathering the input signal of windshield wiper control module 18, that is, gather windshield wiper input signal setter 13 to
The signal that windshield wiper control module 18 inputs, including but not limited to gather master switch 15, car wash mode switch 16,5km speed
The collection of switch 17 and the state of functional select switch 14；Part III is signal processing module 7, is touched using Schmidt is anti-phase
Send out device and low-voltage signal is filtered electric capacity and anti-interference process.
Control module 4, the various types of signal of the collection of module 1 is adopted for receiving data, and carries out function judgement, and according to sentencing
Determine detection and correction that result realizes input and output.Main to include two parts, a part utilizes single-chip microcomputer to automatically control
Automatically it is whether normal that all kinds of input and output signals are monitored, function sex determination is carried out, determines actual signal and the signal detected
Whether be consistent, to windshield wiper whether there is failure function sex determination, when windshield wiper actual signal and detect it is corresponding believe
When number not being inconsistent, judge that the functional module of windshield wiper corresponding to the signal has and manage failure, be otherwise determined as it is normal, and to sentencing
Determine result output module be conveyed to by output signal to show and storing, another part is control manually, according to result of determination,
By manually being operated to each switching value and liquid crystal display touch switch.
Output module：Control module 4 completes the signal acquisition and detection to the input/output signal of windshield wiper control device 18
, it is necessary to which result of determination is exported after judgement, in the present embodiment, output module is used for the result of determination of receive and control module 4,
And show virtual condition instruction and the state of the analog signal exported according to result of determination of main signal.In this implementation
In example, output module includes display module 3 and memory module, and display module 3 includes being provided with display screen 10 and function button 12
Display panel, display screen is TFT colored touch screens, is capacitance touch screen, by MCU driving, can show the detection of each signal
The magnitude of voltage of state and each output signal, at the rear of every bars state, touch switch is additionally provided with, operator can be according to aobvious
Status signal in display screen 10, intuitively find out that windshield wiper whether there is functional fault, for the windshield wiper of functional fault be present
Functional module, touch switch, the signal control of the cut-out windshield wiper functional module are touched, and send a signal to replacement control mould
Block, the main signal of the corresponding function module of windshield wiper is replaced using the corresponding space signal for replacing control module so that blow rain
Device receives normal signal, recovers normal function.In the present embodiment, the coherent signal detected is only shown on the display screen 10
State, operator is contrasted virtual condition of the display screen 10 again with respectively being switched on windshield wiper console itself, if differing
Cause, then judge that switch has failure corresponding to the signal, if faulty generation, the magnitude of voltage of corresponding magnetic valve can show red
Color (display color can customize), carry out fault alarm.Function button 12 is additionally provided with display panel, is mainly used in control and replaces
The replacement function of the corresponding space signal of control module is changed, including but not limited to switch is replaced in function selection, 100V replaces power supply master
Switch, speed regulation replace knob, magnetic valve replaces voltage, battery main switch, single-chip microcomputer switch.Meanwhile output module also wraps
Memory module is included, result of determination can be stored by date using SD card, the suitable internal memory of the selection of time stored as needed,
Such as renewal in every 15 days once, by saving as 16G, it is ensured that whole signal messages, result of determination, foundation result of determination in 15 days
The contents such as the subsequent operation of progress can be stored entirely in SD card, be unlikely to partial information occurs because of low memory to deposit
The phenomenon of storage, is also unlikely to excessive waste internal memory, and the content for making to store is matched in units of the time with memory size.
The inquiry entrance of storage content can be shown on the display screen 10, is existed in the form of touch key-press, and can be arranged as required to need
Want correlation function key.
Power module 2：Main to be responsible for diagnostic device, as single-chip microcomputer provides electric power, including two parts, first
It is divided into Voltage stabilizing module 8, input and output for Voltage stabilizing module 8, is filtered by the way of shunt capacitance, and the United Nations General Assembly's electricity
Hold, the low-frequency interference signal in input and output voltage can be filtered out；Small capacitances in parallel, it can filter out in input and output voltage
High-frequency interferencing signal.The chip used in Voltage stabilizing module 8 is broadly divided into two kinds, and switching regulator and linear voltage regulator, switch are steady
Depressor has the characteristics that high efficiency, High Output Current, low quiescent current, but the shortcomings that output ripple and big switching noise be present；
Low pressure difference linearity claims depressor peripheral components few, and noise and quiescent current are low.Due to single-chip microcomputer (diagnostic device) and colorful display screen
10 load currents are larger, generated heat using low pressure difference linear voltage regulator larger, thus single-chip microcomputer and the load current of display screen 10 compared with
Greatly, using switching regulator；And the voltage transmitter of AD collecting parts requires that supply voltage is stable, therefore use low voltage difference line
Property voltage-stablizer.Part II is circuit protection module 9, and for the main circuit of diagnostic device, because voltage is higher, electric current is larger,
Once generation short circuit accident, cause damage larger, it is therefore desirable to carry out circuit protection.The mode of protection is mainly protected using fusing
Shield and piezo-resistance protection, fuse protection mode are that series connection insures silk in main circuit, when electric current exceedes setting in circuit
During value, meeting fuse wire, main circuit is disconnected, is played a protective role；Piezo-resistance, pressure-sensitive electricity are parallel with main circuit
It is when piezo-resistance both end voltage is not reaching to certain certain value to hinder characteristic, and piezo-resistance resistance can be considered infinitely great, when more than
Certain certain value or during by surge voltage, resistance is obviously reduced, and makes the partial short circuit behind circuit, and protection is played to main circuit
Effect..For signal end, to prevent from puncturing chip because accident introduces high voltage in circuit, diode can be used anti-
The mode connect carries out circuit protection, when voltage is higher, breakdown diode first, makes its short circuit, so as to play protection to chip
Effect.
The signal of display screen 10 of the replacement control module of trouble-shooter and output module connects, and inside sets and windshield wiper
Each input/output signal identical space signal, with touch switch come the Push And Release of control relay, so as to realize in windshield wiper
When associated solenoid valve, switch break down, there is provided space signal simultaneously is carried out replacing work to main signal with space signal.Work as
After the judged result of control module 4 is shown on the display screen 10, operating personnel can intuitively on a display screen with windshield wiper main control
Coherent signal on platform, which corresponds, to be confirmed, whether the theory state and actual measurement state of a certain signal are consistent, for inconsistent
Signal, it is considered as failure, touch switch is provided with rear end corresponding to display screen 10 signal, operator selects to open touch switch
When, the center control chip control of trouble-shooter occurs further confirming that interface on the display screen 10, avoids operator from missing
Operation, after operator further confirms that, this signal is transmitted single-chip microcomputer by chip controls corresponding to output module, and then is transmitted
To control module is replaced, the input of windshield wiper fault-signal (main signal) is first turned off, then by corresponding in replacement control module
Space signal replace main signal, and by space signal by the original transmission path of main signal to object module, so as to protect
Hinder the normal operation of windshield wiper.On the display screen 10, can be identified with open and close state of the different colours to touch switch.
For the types of functionality selecting switch on windshield wiper, switch is replaced by the function selection on display panel the signal is carried out
Replace.
Set on trouble-shooter and replace control module, can be applied to following two situations, on the one hand, when blowing rain
Device causes to receive correctly switch letter because wire aging or electronic unit the reasons such as loose contact, artificial damage occur
Number；On the other hand, cause to break because some reasons cause power-supplying circuit to break down inside windshield wiper control device 18
Road.Now, replacement control module can realize the replacement to original electronic component function, windshield wiper is kept normal work,
To further determine that abort situation provides reliable basis.
Replace control module to switch including function selection replacement, the work(on corresponding windshield wiper input signal setter 13
Energy selecting switch, equally it is that one kind four selects a switch, if being replaced from the mode of single-chip microcomputer control relay, needs
Normally opened, each 4 of normally closed relay, the complexity for the replacement function selecting switch for replacing control module can be now greatly increased, and
Security is not high, and therefore, in the present embodiment, original signal is replaced from four gear mechanical switch.When carrying out the letter
When number replacing, need to rotate and replace knob to correspondence position, internal circuit will realize it is automatic disconnect original signal, with entering plus
Enter newly given replacement signal.
The present invention further gives the concrete application process of windshield wiper trouble-shooter, i.e., is run in windshield wiper
Or the diagnosis to windshield wiper failure and restorative procedure in maintenance process, trouble-shooter and windshield wiper are connected using connector
Connect, data acquisition unit digital collection unit gathers the input/output signal of windshield wiper control device, and control module is to each signal
Measure, and the instantaneous value of switching value is sent to output module, shown and stored, when discovery windshield wiper chain of command
When the dispaly state of on-off state and output module on plate is inconsistent, then it can determine that corresponding switch breaks down, export
Module sends a signal to replacement control module, is replaced fault-signal using corresponding signal of replacing, windshield wiper recovers just
Often running, confirm that switch breaks down corresponding to the signal, switch corresponding to windshield wiper is repaired during parking maintenance.Tool
Body, diagnostic device is acquired in the input/output signal to windshield wiper control device, i.e., to guarantee each signal from scraping
Along in device, correctly collection comes out rain, while also to ensure that diagnostic device can be by the signal collected in the form of original signal
Back to windshield wiper, so diagnostic device passes through three-way connector with windshield wiper control device, windshield wiper input signal setter
Connection, diagnostic device, windshield wiper performs device, windshield wiper control device threeway connection.
After connecting diagnostic device, digital collection unit 6 gathers master switch 15, car wash mode switch 16,5km speed
Switch 17 and the switch state signal of functional select switch 14, signal value are switching value, by control module 4 to each switching value
Measure, and the instantaneous value of switching value is sent to output module, and show on the display screen 10, when discovery windshield wiper control
When dispaly state is inconsistent on the display screen 10 of on-off state and diagnostic device on panel processed, then it can determine that and open accordingly
Pass is broken down, and now, master switch 15, car wash mode switch 16,5km speed switches 17, can pass through the touch-control on display screen
Fault-signal is replaced by switch using the corresponding replacement signal for replacing control module；Analog acquisition unit is respectively to scraping
1.5/1,1.5/2,1.5/3,1.4 magnetic valves in rain device control device carry out signal acquisition, and the signal collected is simulation
Amount, control module is measured each analog quantity in real time, and result is exported to output module, and is shown on the display screen 10,
For 1.5/1,1.5/2,1.5/3 magnetic valve, the theoretical of windshield wiper can be obtained by the input signal of windshield wiper control device 18 and exported
Value, judges whether the measured value of each magnetic valve and theoretical value are consistent by control module, if inconsistent, proves that windshield wiper controls
Device 18 breaks down, and can be replaced by the 100v power supplys on the display panel of output module on master switch and display screen 10
Touch switch, send a signal to the signal replaced in control module and corresponding signal is replaced., can for 1.4 magnetic valves
By adjusting the speed adjusting knob in input signal, whether 1.4 solenoid voltages of observation break down, expect to break down, lead to
The 100v power supplys crossed on display panel replace master switch and speed regulation replaces knob and carries out signal replacement.Each letter collected
Number through control module detection be defined as normal when, be that fixed signal flows to original signal receiving unit by former windshield wiper, specifically
, trouble-shooter data flow is as shown in Fig. 2 internal data flow is as shown in Figure 3.Specific replacement process is as mentioned before.Adopt
The final result of determination of each signal, the control device that collect, sends output module to by control device, is stored.
Because 1.4 solenoid voltage values are by the shadow of windshield wiper speed adjusting knob input windshield wiper control device resistance
Ring, and the resistance variations do not have rule, and 1.4 solenoid voltages are irregular to follow so as to causing, when governing speed adjusting knob
When, if being changed on a display screen to 1.4 magnitudes of voltage, then it is assumed that the part has no problem, and otherwise needs to carry out the signal
Replace, during replacement, 100v voltages need to be opened and replace master switch, the 100v power supplys that windshield wiper control device inputs are replaced to output
Change signal-powered, then open 1.4 voltages and replace switch, while windshield wiper control device and 1.4 magnetic valves are disconnected, general
Signal access is replaced, knob is replaced in last governing speed regulation, to 1.4 solenoid valves.
Replacement signal for master switch 15,5km speed switches 16, car wash mode switch 17 is by controlling relay
The conducting of device and shut-off are realized, when needing to carry out the replacement of the signal, it is necessary to press corresponding touch-control on display screen 10
Switch, realizing first disconnects master switch 15,5km speed switches 16, the original signal of car wash mode switch 17, then will replace
Space signal in control module introduces.
The replacement of the magnitude of voltage of magnetic valve 1.5/1,1.5/2,1.5/3 and by the conducting of control relay and shut-off come
Realize, when needing a certain relay power-off, it is necessary to which pressing corresponding signal on display screen replaces button, realize original defeated
Go out the disconnection of voltage, if necessary to replace upper electricity, be then closed again upper electrical switch.In the present embodiment, signal electricity is being replaced
Lu Zhong, triode is provided with, controls whether the conducting of triode realizes relay part by single-chip microcomputer Setting signal
Conducting and shut-off, certainly in actual applications, the action situation of different circuit relays may be different.
Windshield wiper trouble-shooter and diagnosis and restorative procedure provided by the invention, especially suitable for rails such as EMUs
Road vehicle, meanwhile, other vehicles, such as automobile are also applied for, or any need is used on the product of windshield wiper.
In summary, a kind of windshield wiper trouble-shooter provided by the invention, compared with prior art, have as follows
Advantage：
1. automatic data collection windshield wiper analog signalses and digital quantity signal simultaneously carry out windshield wiper whether the analysis of failure are sentenced
It is disconnected, and feature replacement is carried out according to analysis judged result, the detection and reparation of windshield wiper failure can be carried out in real time, do not influenceed
Windshield wiper normal work；
2. automatically derived fault diagnosis result, need to manually be gathered instead of analog signal in the prior art and data signal and
Analysis, fast and accurately failure judgement point and real-time instruction site operation personnel it can carry out accident analysis and processing, saving people
Work；
Control module is substituted 3. providing, after maintenance is out of order, can directly replace the trouble unit in windshield wiper, in time row
Look into failure, there is provided traffic safety.
As described above, combining given plan content, similar technical scheme can be derived.In every case be without departing from
The content of technical solution of the present invention, any simple modification made according to technical spirit of the invention to above example, it is equal
Change and modification, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of windshield wiper trouble-shooter, it is defeated that windshield wiper includes windshield wiper control device, windshield wiper gas control unit, windshield wiper
Enter signal feeding device and windshield wiper performs device, it is characterised in that：The diagnostic device is controlled by connector and windshield wiper
Device is connected with windshield wiper input signal setter by connector, and the diagnostic device includes that the windshield wiper control can be gathered
The input/output signal of device processed simultaneously carries out analysis and judges detection module and can be to the input and output of the windshield wiper control device
Fault-signal in signal is replaced the replacement control module so that windshield wiper normal operation.
A kind of 2. windshield wiper trouble-shooter as claimed in claim 1, it is characterised in that：The detection module includes,
Data acquisition module, gathers the input/output signal of the windshield wiper control device, and transmits a signal to control module
Detected and judged；
Control module, receive the data and adopt the various types of signal of module collection, and detected and judged, determine that various inputs are defeated
Whether normal go out signal, and export result of determination to output module；
Output module：The result of determination and signal data of receive and control module, show and preserve；
Power module：Electric power is provided for diagnostic device.
A kind of 3. windshield wiper trouble-shooter as claimed in claim 2, it is characterised in that：The data acquisition module includes
The output signal of the windshield wiper control device can be gathered and send the analog acquisition unit of the control module to, can gather
The input signal of the windshield wiper control device simultaneously sends the digital data acquisition unit of the control module to, signal can be carried out
The signal processing unit of signal analysis and processing is carried out after filtering and anti-interference process.
A kind of 4. windshield wiper trouble-shooter as claimed in claim 3, it is characterised in that：The analog acquisition unit,
Using the magnitude of voltage of the output signal of voltage transmitter collection windshield wiper control device, and it is low-voltage signal by its linear voltage decreasing,
Send the control module to.
A kind of 5. windshield wiper trouble-shooter as claimed in claim 4, it is characterised in that：The signal processing unit uses
Schmidt's inverter trigger and electric capacity low-voltage signal is filtered and anti-interference process after carry out signal analysis and processing.
A kind of 6. windshield wiper trouble-shooter as claimed in claim 2, it is characterised in that：The power module is included to be single
Piece machine provides the Voltage stabilizing module of stabilized power source, the circuit protection module of circuit protection is provided for main circuit, and the Voltage stabilizing module is adopted
It is filtered with the mode of shunt capacitance.
A kind of 7. windshield wiper trouble-shooter as claimed in claim 6, it is characterised in that：The control module and described aobvious
Show that module uses switching regulator, the data acquisition module uses low pressure difference linear voltage regulator.
A kind of 8. windshield wiper diagnostic device as claimed in claim 1, it is characterised in that：The diagnostic device, windshield wiper control
Device is connected with windshield wiper input signal setter by three-way connector, the diagnostic device, windshield wiper control device and
Windshield wiper performs device is connected by three-way connector.
9. a kind of windshield wiper fault diagnosis and restorative procedure, it is characterised in that：By the failure described in any one of claim 1 to 8
Diagnostic device is connected with windshield wiper using connector, and data acquisition unit digital collection unit gathers the defeated of windshield wiper control device
Enter output signal, control module is measured to each signal, and the instantaneous value of switching value is sent into output module, is shown
And storage, when the on-off state and the inconsistent dispaly state of output module on discovery windshield wiper control panel, then can sentence
Fixed corresponding switch breaks down, and output module sends a signal to replacement control module, using corresponding signal of replacing by failure
Signal is replaced, and windshield wiper recovers normal operation, confirms that switch breaks down corresponding to the signal, to blowing rain during parking maintenance
Device accordingly repaired by switch.
10. a kind of windshield wiper fault diagnosis as claimed in claim 9 and restorative procedure, it is characterised in that：
When 1.4 magnetic valves of windshield wiper have and manage failure and need to carry out signal replacement, open 100v voltages and replace master switch, will scrape
The 100v power supplys of rain device control device input are signal-powered to output replacement, and the replacement of 1.4 voltages is then opened on display panel and is opened
Close, while windshield wiper control device and 1.4 magnetic valves are disconnected, signal access will be replaced, last governing speed regulation is replaced
Knob, to 1.4 solenoid valves；
When the switch of windshield wiper input signal setter, which breaks down, needs to carry out the replacement of the signal, output device is pressed
Corresponding touch switch, realize that the original signal for the switch for first making failure disconnects, then it is corresponding in control module by replacing
Space signal introduces；
When the magnetic valve of windshield wiper control device breaks down, it is necessary to when carrying out the replacement of magnitude of voltage, it is corresponding to press output device
Signal replace button, realize the disconnection of original output voltage, if necessary to replace upper electricity, be then closed again upper electrical switch.
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| CN201710763474.5A CN107688309A (en) | 2017-08-30 | 2017-08-30 | A kind of windshield wiper trouble-shooter and fault diagnosis and restorative procedure |
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