Background technology
Before the sixties in 20th century, automotive interior gasoline injection system, and other control function be made byRealizing in machinery, structure is complicated, expensive, is used for luxury models and racing car.20After the sixties in century, due to the fast development of electronic technology and affected by Abgasgesetz, made automatically controlledGasoline injection (EFI) technology and control system have obtained further development.Automobile is the most only by machineryControl, can be automatically controlled by vehicle interior automobile computer (ECU), each electrical equipment on automobileElement, is all to be controlled computer (ECU) by each different sensor with automobile to be connected.Therefore, vapourWhether car computer can the state understanding each components and parts promptly and accurately break down, it is also possible to effectivelyControl all parts action on automobile.
Automobile computer (ECU) can store state and the fault message of all elements controlled, andBeing controlled vehicle part promptly and accurately, externally it provides the interface an of standard, i.e. OBD examinesSlave interrupt interface, is mainly used in automotive interior information and extraneous communication, is currently mainly used in auto repairEnterprise is communicated with automobile computer (ECU) by instrumentation (i.e. automobile decoder) and obtains vehicleReal-time dynamic information and the fault message of static state also become the literary composition that people can be allowed to identify through decoding processWord and numeral show, the specialized maintenance personnel information to reading carries out whether discriminatory analysis vehicle is depositedIn fault, there is fault in any parts.When vehicle ECU breaks down or needs upgrading, it is possible to useInstrumentation (i.e. automobile decoder) is connected with automobile computer by OBD interface and realizes ECU and again write with a brush dipped in Chinese inkAnd upgrading.
Owing to current all of special inspecting equipment is only used for maintenance company, strongly professional, it is suitable for modelEnclose narrow.So, on automobile, the OBD diagnosis interface of standard configuration is only used for Measuring error and is used, for itPotentiality are not fully excavated.
Fig. 1 shows the diagnosis seat schematic diagram being connected end with vehicle harness of the prior art.Such as Fig. 1Shown in, OBD diagnosis interface is a universal international standard interface, and current all new productions are outVehicle (gasoline car, diesel oil heavy goods vehicles) all have become as standard configuration, shape size size all phasesWith, 16 stitch altogether, wherein 16 stitch are defined as follows:
PIN 1——SAE J2411,GM single wire CAN；General Corporation single line CAN-BUS
PIN 2 ISO 11519 (Bus+) (SAE J1850), and No. 10 feet use simultaneously,41.6Kbps PWM pulsewidth modulation
PIN 3——Chrysler,CCD+(not OBD)；Chrysler makes CCD-BUS netting twine H line；
Ground, PIN 4 chassis Chassis ground
PIN 5 logically Signal ground
PIN 6——ISO 15765-4；CAN-BUS high speed diagnostics lines (H line), 250/500Kbit/s
PIN 7 KWP1281 or KWP2000 Protocol diagnostic line (K line), baud rate 10400
PIN 8 ignition switch has opened electricity IG+；Ignition switch ON/OFF state recognition purposes；
During 9 No. 7 foot inconveniences of PIN, enable * KWP1281 or KWP2000 Protocol diagnostic line (KLine) baud rate is 10400
PIN 10 ISO 11519-4 (Bus-) (SAE J1850), and No. 2 feet use simultaneously,41.6Kbps PWM pulsewidth modulation
PIN 11——Chrysler,CCD-(not OBD)；Chrysler CCD-BUS netting twine L line
PIN 12 K line maker retains use
PIN 13 K line maker retains use
PIN 14——ISO 15765-4；CAN-BUS high speed diagnostics lines (L line), 250/500kbps/s
PIN 15 KWP1281 or KWP2000 Protocol diagnostic line (K line) 7PIN is not enough or controlsEnable when unit is too much.
PIN 16 long live wire BAT+
For standard OBD interface, diagnostic apparatus enterprise (decoder producer) all must comply with internationalDiagnostic criteria just can set up communication with automobile, manufactures various general or special purpose maintenance device, mainMaintenance company to be used for uses when repairing.
Along with the fast development of automotive engineering and improving constantly of people's safety consciousness, pass through vehicle diagnosisSeat can excavate a lot of new opplication being conducive to traffic safety.Sufficiently that automobile diagnosis technique is specializedTurn to civil nature, diagnostic techniques can preferably be serviced for car owner.
Vehicle safety is most concerned topic for each car owner, but, for ordinary populace,The vehicle bought is the home-use car about 100,000 mostly, so, for just having in some luxury carsThe function that automatically latches cannot realize in common vehicle.And these functions, for having boughtVehicle, auto vendor cannot carry out upgrading to vehicle again, it is achieved such function.
For a lot of car owners, very urgent to the functional requirement of this block, it is intended on the car of oneself joinIt is equipped with such function, because this function is extremely important for the safety of vehicle, such as, vehicle existsThe when of Deng red light, if car door is unlocked, stranger just can arbitrarily pull open car door to the article in vehiclePlunder, thus property and personal safety are caused damage.
Now with the fast development of automotive electronic technology, make electronic gasoline injection (EFI) technology and controlSystem processed obtains.The control of automobile no longer simply machinery, can be by vehicle interior automobile computer (ECU)Automatically control, each electric elements on automobile, all controlled electricity by each different sensor with automobileBrain (ECU) is connected.Automobile computer can promptly and accurately understand each components and parts state, it is possible toEffectively to control the action of all parts on automobile.Standard OBD interface is automobile computer foreign exchangesUnique interface, the state of each electronic component of vehicle can be monitored or controls by OBD interfaceSystem.
According to the market demand, on the basis of vehicle diagnosis, a set of micromodule equipment of current design, onlyThe OBD that need to simply insert car gage configuration diagnoses interface, can be monitored vehicle current state,Thus realization latches automatically, the function of auto-unlocking.
Based on the basis of this, it is now desired to separate diagnostic instrument (i.e. automobile decoder) is carried out microChange processes, and on this basis, increases remote control function, just can realize the mesh of people's car unificationMark.
Summary of the invention
In order to overcome drawbacks described above, it is achieved by the extension of the plug-in function of OBD interface, the present invention carriesThe miniature diagnostic equipment of a kind of automobile, the miniature diagnostic equipment of described automobile and Universal automobile OBD interface are suppliedBeing connected, thus carry out communication with automobile computer, the miniature diagnostic equipment of described automobile includes: detection module,Described detection module is for detecting the pressure drop of automobile and determining automobile shape according to the automobile pressure drop detectedState；Intercept module, described in intercept module for intercepting vehicle data corresponding with vehicle condition；StorageModule, described memory module according to described in intercept the described vehicle data that module listens to and the vapour determinedDescribed vehicle data is analyzed processing by car state；And feedback module, described feedback module will be analyzedVehicle data after process feeds back to automobile computer, so that automobile computer sends corresponding control command,Thus realize the corresponding control to car electrics.
Additionally, the miniature diagnostic equipment of this automobile also includes remote control module, described remote control moduleHaving communication module, the vehicle data after the process from described memory module is passed by described communication moduleTransport to user or server；Preferably, the miniature diagnostic equipment of described automobile also includes being connected by pricking with needleThe first plate connect and the second plate, described detection module, intercept module, memory module and feedback module and setPutting on described first plate, described remote control module is arranged on described second plate；It is highly preferred thatRemote control module on described second plate and the memory module on described first plate are by described pricking with needleIt is connected.
Preferably, described memory module includes analyzing module, and described memory module stores standardInformation, is intercepted the vehicle data that module listens to be sent to memory module by described, and by withThe standard information stored in memory module compares, and is analyzed by described analysis module, thusObtain the vehicle data after analyzing and processing.
Preferably, at least one during described vehicle data includes the following information relevant to vehicle: carThe status information of electrical equipment, mileage, voltage, oil consumption or speed；Preferably, described vehicle electric elementStatus information include at least one in the information of following vehicle electric element equipment: headlight, lampet, interiorPortion's illuminating lamp, car door do not close warning, the lifting of vehicle window or luggage case.
The miniature diagnostic equipment of automobile of the present invention also includes the SIM socket for inserting SIM, fromAnd make the miniature diagnostic equipment of described automobile realize long-range SMS alarm service by SIM.
Preferably, described intercept module carry out intercepting work time, intercepting module can real-time sense carData；Preferably, when described detection module detects that vehicle is in transport condition, and instituteStating and intercept module when listening to Vehicle Speed more than 15km/h, described feedback module can be to car doorAutomatically latch operation；When described intercept module listen to Vehicle Speed be 0 time, car door is notCan automatically open up, when described module of intercepting listens to driver and extracts key or driver's side car door opening, instituteState feedback module and can control other car door opening.
According to a further aspect in the invention, it is provided that a kind of vehicle diagnosis method, described method include withLower step: utilize the miniature diagnostic equipment of automobile to use general international standard agreement to lead to OBD interfaceNews, thus obtain vehicle data；The miniature diagnostic equipment of described automobile includes: detection module, intercept mouldBlock, memory module and feedback module, the miniature diagnostic equipment of described automobile has a following job step:The automobile pressure drop that the pressure drop of described detection module detection automobile basis detect determines vehicle condition；ProfitVehicle data corresponding with vehicle condition is intercepted by described module of intercepting；Intercept module described in passing through to detectThe described vehicle data heard sends to described memory module, so that described memory module is according to interceptingTo vehicle data and the vehicle condition that determines be analyzed processing to described vehicle data；Undue with warpVehicle data after analysis processes is sent to described feedback module, and is passed through automobile by described feedback moduleGeneral purpose O BD interface feeds back to automobile computer, and automobile computer sends according to the vehicle data of feedback accordinglyControl command.
Additionally, also include utilizing remote control module to carry out remotely according to the vehicle diagnosis method of the present inventionCommunication transfer, described remote control module has communication module and antenna, and wherein said communication module is usedIn the data sent being needed to pass to client or upload onto the server；Preferably, described automobile is miniatureThe diagnostic equipment includes the SIM socket for inserting SIM, so that described automobile miniature diagnosis dressPut and realize long-range SMS alarm service by SIM.
Preferably, described memory module includes analyzing module, and described memory module stores standardInformation, operationally, is sent to memory module by the described vehicle data intercepting module acquisition, andBy comparing with the standard information stored in a storage module, described analysis module it is analyzed,Thus obtain the vehicle data after analyzing and processing；Preferably, carry out intercepting work in described module of interceptingTime, intercepting module can be with the data of real-time sense vehicle.
The automobile miniature diagnostic equipment simple in construction of the present invention, easy to use, function diversification, it is possible toObtain the various information relevant with vehicle electric element in real time, and be capable of long-range data transmission, meetThe demand automatically controlled and remotely control.
Detailed description of the invention
Embodiments of the invention are further described below in conjunction with accompanying drawing.
Fig. 2 shows the axonometric chart of the miniature diagnostic equipment of automobile of the embodiment of the present invention.As in figure 2 it is shown,The overall dimensions size of the miniature diagnostic equipment of this automobile is (long * width * is high): 50mm*33mm*28mm,The relation put due to the standard diagnostics seat of car, the size of the miniature diagnostic equipment of this automobile is to meet the worldStandard.If the size of the miniature diagnostic equipment of this automobile is more slightly larger than above-mentioned size, then this automobileThe miniature diagnostic equipment cannot normally be inserted in some vehicles.Additionally, the miniature diagnostic equipment of automobile16PIN male is also to carry out, by international standard size, the mould that moulds.
As in figure 2 it is shown, the miniature diagnostic equipment of this automobile has 16 stitch, with standard OBD of automobileInterface one_to_one corresponding, is directly inserted into vehicle diagnosis this micro device exactly with the connected mode of automobileOn seat, it is exactly a miniature automobile computer detection equipment, can understand the fortune of vehicle in timeRow state, and according to the present situation of vehicle, make automatic some elements to vehicle and carry out some behaviourMake.
Its power supply mode is directly power taking from diagnosis seat, connects because this interface is an international standardMouthful, there is strict wiring to define, #16 foot is the positive pole of automobile power source, and #4 foot is automobile power sourceNegative pole, so after this micromodule equipment inserts vehicle diagnosis seat, vehicle accumulator can be powered to it the most automatically,Solve its permanent electricity problem.From inserting vehicle diagnosis seat, after self-inspection, regular employee can be enteredMake state.
Fig. 3 A-3C shows the axonometric chart of the housing of the miniature diagnostic equipment of the automobile in Fig. 2.Wherein Fig. 3 AIt it is the face upwarding stereogram of the first half-shell of the miniature diagnostic equipment of automobile according to embodiments of the present invention；Fig. 3 BIt it is the top perspective view of the first half-shell of the miniature diagnostic equipment of automobile according to embodiments of the present invention；Fig. 3 CIt it is the axonometric chart of the second half-shell of the miniature diagnostic equipment of automobile according to embodiments of the present invention.
As shown in figs. 3 a-3 c, the miniature diagnostic equipment of automobile includes housing, the first plate and the second plate (figureNot shown in).Housing has first half-shell and the second half-shell, and first half-shell is provided with pricking with needle (16Stitch), one end of pricking with needle is stretched out first half-shell and is inserted in automobile OBD interface, and the second halfShell releasably can be combined with described first half-shell.First plate is accommodated in described upper casing and described lower casingBetween, wherein, described first plate being provided with detection module, this detection module is according to detectingAutomobile pressure drop determines vehicle condition；Intercepting module, this is intercepted module and is connected with Universal automobile OBD interfaceConnect, intercept module and can intercept vehicle data corresponding with vehicle condition；Memory module, memory module withDescribed module of intercepting is connected, and this memory module is according to intercepting vehicle data that module listens to andVehicle data is analyzed processing by the vehicle condition determined；And feedback module, one end of feedback moduleBeing connected with memory module, the other end is connected with Universal automobile OBD interface, after processing by analysisVehicle data is sent to feedback module, and is fed back to by Universal automobile OBD interface by feedback moduleAutomobile computer, automobile computer sends corresponding control command according to the vehicle data of feedback.
Can using detection module, to intercept module, memory module and feedback module integrated as diagnostic module.
The miniature diagnostic equipment of this automobile can also include the second plate, and this second plate is provided with and remotely controls mouldBlock, is mainly used in carrying out remote data transmission with user or server.Second plate is also accommodated in describedEnclosure interior is also arranged on above described first plate, and the second plate is connected by pricking with needle with described first plate.
Specifically, the remote control module on the second plate and the memory module on the first plate can be by rowsPin is connected, as such, it is possible to vehicle data after the analyzing and processing that will obtain from memory module send toRemote control module.Remote control module has communication module, and described communication module will be deposited from describedThe vehicle data transmission of storage module is to user or server.
Specifically, communication module includes GPSR/GSM module, SIM card holder and antenna.Antenna determinesThe power of the signal of remote control module and stability.Communication module can by need send data (asWarning message) it is sent to user by wireless module (antenna) very first time or uploads onto the server.The connection between vehicle and server can be kept by communication module, and obtaining car from diagnostic moduleData are uploaded to server, thus meet the demand remotely controlled.
Additionally, as shown in Figure 3 C, the sidepiece of the second half-shell is provided with SIM socket, and the second plate setsIt is equipped with sim card socket, as such, it is possible to common SIM is inserted on sim card socket by socket,Such that it is able to provide the user remote short messages alert service.This SIM can be any existingSIM, as long as it possesses the function that can receive and dispatch note.
Certainly, the present invention is not limited to this, and housing can be integrative-structure, the first plate and the second platePosition relationship can change, and even diagnostic module and remote control module can also be arranged on identical plateOn, as long as being capable of respective function.
Diagnostic module and remote control module preferably have plate-like form, but the invention is not restricted to this,They can also have other shape any.By automobile storage battery be the first plate and the second Plate supplying the most electric(i.e. permanent electricity power supply (12V)), and can ensure that this diagnostic module and remote control module are in oftenUnder electricity condition, such that it is able to be always maintained at this data cube computation.Additionally, the data cube computation of module and handsAs the network of machine connects, once occur that suspension can give network automatically for change.
Fig. 4 shows the fundamental diagram of the miniature diagnostic equipment of automobile according to embodiments of the present invention.AsShown in Fig. 4, automotive interior uses the network layout pattern of CAN, there is a lot of block not in automobileSame automobile computer, these automobile computers are interrelated by the form of bus.The miniature diagnosis of automobile fillsPut and be connected with Universal automobile OBD interface, in order to communication can be carried out with these automobile computers.Here,The communications protocol used when the miniature diagnostic equipment of automobile is connected with Universal automobile OBD interface mainly includesHereinafter meet the protocol type of general international standard, such as: ISO 9141-2, SAE J1850VPW,ISO 14230-4KWP2000, SAE J1850PWM, ISO 15765-4CANBUS etc., thenBy the way of upper and lower contact pin, realize the data with the diagnostic equipment pass mutually.
As shown in Figure 4, in automotive diagnostic system, detection module can detect automotive voltage basisThe automobile pressure drop detected determines vehicle condition；After determining vehicle condition, intercept module intercept withThe corresponding vehicle data of vehicle condition, and the vehicle data listened to is sent to memory module；DepositingStore up and module has program stored therein file and reference data etc. and there is analysis module, so, storageModule can be analyzed processing to from the vehicle data intercepting module, thus after obtaining analyzing and processingData message；Vehicle data after these analyzing and processing can be fed back to automobile by feedback moduleComputer also sends corresponding control command, thus realizes the corresponding control to car electrics.These are analyzedVehicle data after process can also be immediately sent to remote control module, in order to uploads onto the serverOr it is transmitted directly to user.
Here, diagnostic module is mainly used in the control part of vehicle, can control the electricity such as car door, lockDevice equipment；And remote control module is mainly used in the remote data transmission with user and/or server.
By several exemplary embodiments, vehicle diagnosis according to embodiments of the present invention will be described belowThe operation principle of device.
The miniature diagnostic equipment of automobile and car carry out communication, and by the above-mentioned association meeting general international standardView realizes the conversion of communication modes, is then set up by serial line interface between the miniature diagnostic equipment of automobileData pass mutually such that it is able to listen to the various data relevant with vehicle by intercepting module, willAfter these data are sent to processor, by the memory module in processor, these data can be enteredRow is analyzed, thus understands the status information of such as vehicle electric element, mileage, voltage, oil consumption etc. vehicleRelevant information.
One of major function of the diagnostic equipment is exactly that utilization is intercepted module and intercepted these car datas, and leads toThese car datas are processed by program of crossing, and send the control command of necessity, realize vehicle electricalThe control of device.
Such as, during vehicle travels, intercept the data of module meeting real-time sense vehicle, when detecingWhen hearing that the travel speed of vehicle is more than 15km/h, intercept module and will transmit this data to store mouldBlock, compares with the reference data stored in a storage module, it is thus achieved that corresponding control command, fromAnd can automatically electric control door lock to vehicle latch operation, so can well ensure occupantSafety and the safety of finance；When speed is 0, car door will not automatically open up, the at this moment diagnostic equipmentCan intercept whether driver extracts car key and open driver's side car door (other car door opening does not affect),If listening to driver extracted key or had already turned on driver's side car door (the two condition meets oneIndividual), other car door also can automatically open up simultaneously.
By vehicle condition information is intercepted, extract car key when listening to driver and opening car doorAfter when turning off car door, then by detection after, according to practical situation, car door is latched automatically,Vehicle window family is carried out automatic elevation operation.
Specifically, miniature detection equipment can intercept the various data on automobile bus automatically, and to dataCarry out filter analysis, close and after driver leaves vehicle, when listening to car when listening to car keyWhen window does not closes, the miniature diagnostic equipment can send the liter window instruction of vehicle window to automobile computer (ECU), completeBecome the window elevation operation of vehicle, thus realize the effective control to vehicle window.
Additionally, carrying out in the pattern intercepted by the module of intercepting in diagnostic module, when finding vehicleDriver has pulled out key and has left vehicle, and after the time delay controlled by time module, thenBy the way of actively sending order, the electric equipment of vehicle is detected, including: headlight, lampet,Interior light, car door do not close warning, Sorte Nula etc., once find what these parts were not turned offSituation, then can be converted to testing result by remote control module the form of word, and be to userRemotely send note to remind.
The miniature diagnostic equipment of automobile, can logarithm after automatically listening to the various data on automobile busAccording to carrying out filter analysis.Closing and after driver leaves vehicle when listening to car key, automobile is miniatureThe diagnostic equipment can the very first time vitals of vehicle is detected, such as car door, headlight, skylight,Body light light etc. are various current consuming apparatus, accurately to understand whether various equipment are closed.AsReally these equipment are closed, and the most do not carry out SMS alarm；If there being equipment to be in power consumption state,Then after having intercepted, the very first time passes through the communication module in the miniature diagnostic equipment of automobile with noteForm informs which electric equipment of car owner is not turned off.So, the miniature diagnostic equipment of automobile can be in timeInform car owner's associated alarm information, it is to avoid situation about cannot start due to power consumption occurs in vehicle.
By intercepting module and can also listen to the data of user's remote controller in the diagnostic equipment, by pointThe order that remote controller is sent by analysis module is analyzed processing, and grasps vehicle window family according to analysis resultMake, thus controlled the lifting of the window of vehicle by remote controller.If the user while find car when leaving carWindow does not rise, or wants before getting into the vehicle to allow vehicle window first open ventilation, can be by shakingControl device effectively controls, but the most basic be to be controlled by automotive diagnostic system.
Additionally, this detection module can also judge the state of vehicle.Because vehicle running status with stopOnly there is the biggest opering characteristic of electric apparatus and there is the biggest difference in state, and all of intercepting is built upon first determiningOn the basis of vehicle condition, in order to judge that this vehicle is belonging to running status or halted state,Needing a good detection mode, existing do this detection method is stated as follows:
The all of communication pin of the diagnostic equipment is all to be designed according to international standard, owing to vehicle isConstant voltage source, 16 feet are positive poles, and 4 feet are negative analysis, are powered device.But, due to automobileStorage battery is also connected with the electric equipment of other in car.In the moment of vehicle launch, have a pressure drop,And in vehicle operation, there is also such pressure drop process, the most in the following way, it is achieved rightThe accurate judgement whether vehicle starts or stopped.
Micro device uses STM32 control chip, modulus (A/D) conversion of this built-in chip type one 12Device, can gather external voltage signal, and convert thereof into digital signal, and control chip is by collectingDigital signal just can calculate the magnitude of voltage collected at present.In the stop condition of the vehicle, it is a perseveranceFixed magnitude of voltage, typically between 12V to 13V, in automotive ignition moment, due to engine start meetingDriving other multiple electric equipment, this process needs bigger electric current, so at engine startMoment battery voltage has the biggest pressure drop, typically up to more than 2V.During engine start, electromotor can carryGenerator rotation in electrical automobile is storage battery charging, and now battery voltage can rise between 13V to 14V.By the conversion of voltage signal, real-time carry out data sampling, if it find that there is pressure drop, and,Voltage is detected by circulation, if wherein existing higher than more than 13V voltage, then proves that one is directly subordinate to openDynamic state；If midway there is also pressure drop phenomena, can be filtered by condition adjudgement.With equallyReason, it can be determined that vehicle has stopped.
Specifically, as described previously with reference to described in Fig. 2, the miniature diagnostic equipment of this automobile has 16 stitch, itPower supply mode be directly power taking from diagnosis seat because this interface is an international standard interface, haveStrict wiring definition, #16 foot is the positive pole of automobile power source, and #4 foot is the negative pole of automobile power source,So after this micromodule equipment inserts vehicle diagnosis seat, the electricity of vehicle accumulator is just immediately directed against device interior,Power pins equipment for equipment has done individual processing, and the real-time voltage to power module is examinedSurvey, any one trickle change in voltage, all can make a record.
For vehicle power supply voltage, it was a constant voltage originally, but, owing to vehicle needsDrive various electric equipment, need storage battery to power during startup and realize the igniting of electromotor, so vehicle is sent outCan there is certain pressure drop in motivation ignition point battery voltage, the time of this pressure drop is the shortest, belongs toMillisecond rank, does corresponding judgement by pressure drop other to this Millisecond, i.e. can accurately understand carStart moment time.But, in vehicle travel process, former due to operating habit and road conditions, also can there is such pressure drop phenomena in cause, it is therefore desirable to enter this pressure drop after vehicle launchRow filters, and the real time realizing vehicle launch moment judges.
The slight change of voltage is entered by this micro device by the effective reading to voltage, recycling softwareRow filter analysis, is truly realized the accurate judgement started each time.
The state of vehicle can be accurately judged by the method, the startup time of vehicle can be accurately understood,The number of starts, runs the time, provides valid data for Automobile Enterprises, and for intercepting module rearThe accuracy of continuous interception data provides guarantee.
Additionally, this diagnostic equipment can also include test module, this test module can with remotely control mouldBlock works in combination.Specifically, test module can be obtained by vehicle-mounted OBD system has with dischargeThe fault message closed, and fault message can be sent on server by remote control module.To faultThe detection of information is the core of vehicle diagnosis, the compatible various agreements of this detection module, can be to all symbolsThe vehicle closing OBD agreement is tested the most accurately.This has effect for the improvement of vehicle exhaust very much.
Fig. 5 shows that the miniature diagnostic equipment of automobile according to embodiments of the present invention is for obtaining emission informationSchematic diagram.
As it is shown in figure 5, this diagnostic equipment has 16 stitch, with the standard OBD interface one a pair of automobileShould, exactly this micromodule equipment is directly inserted on vehicle diagnosis seat with the connected mode of automobile,It can understand the fault message relevant with vehicle discharge the very first time.Further, this diagnostic equipment also hasHaving GSM communication module, this miniature diagnostic equipment can actively send note or inform car by serverMaster dependency information, car owner can also log in application software and obtains relevant information from server or send detectionInstruction is to micro device.
Vehicle diagnosing apparatus is intercepted by detection, is analyzed all communication datas, when the event of vehicleIn the case of barrier lamp (MIL) lights, can accurately judge that the discharge of vehicle exceeds standard, it is necessary to and enterCarrying out keep in repair.In the case of failure classes light, how many kilometers that vehicle runs, if carry outClear code operation can recorded on automobile computer timely and upload to Surveillance center by this equipment,Thus realize Surveillance center and find that reminding in time during this type of fault, alerting car owner or take it occur in vehicleIt is missed.
The miniature diagnostic equipment is installed on automobile OBD diagnosis joint, is connected with vehicle-mounted OBD system, realTime monitoring electromotor, catalytic converter, grain catcher, oxygen sensor, emission control systems, combustionThese data are analyzed by multiple system such as oil system, EGR and parts simultaneously, by these dataContrast with the data under normal condition, when find data exception time, automatically analyze out vehicle thatWhether component malfunction can affect exhaust emissions, when finding exhaust emissions generation be affected, and meetingExceed standard the information such as relevant DTC by VIN (identification of the vehicle) code of vehicle, license plate number and dischargeBeing automatically uploaded to server, be available for the monitoring of traffic control department, transmission fault note is to car owner's mobile phone simultaneously,Reminding car owner to keep in repair, if car owner does not the most keep in repair, it can be entered by traffic control departmentThe corresponding punishment of row.
Outer user also can apply soft by the micro device that transmission note or use are arranged in mobile phoneVehicle is actively detected by part, and diagnosis report can be reported to server or the shortest by the miniature diagnostic equipmentLetter form is returned to user mobile phone.
In the above-described embodiments, the basis that all technology realize is all on OBD joint, it is achieved plug-inEffective extension of function, during realizing, the effective voltage detecting technology of employing, it is ensured thatThe verity of subsequent result and accuracy.Rise a window, fall window about shaking control, start and latch, unblank etc.Function, it is achieved method has a variety of, for auto vendor, can use the control circuit of automotive interiorRealize, but different to these functions of car of same level.Automotive interior can be by using differenceElectrical control module realize this function, but realized the expansion of automobile function by OBD interface external hanging typeThe pattern of exhibition is the most little.The feature of this invention maximum is exactly that external hanging type micromodule realizes vehicle service meritThe largest extension of energy, services for car owner.
Finally it should be noted that above example is only in order to describe technical scheme rather than rightThis technical method limits, the present invention application on can extend to other amendment, change, shouldWith and embodiment, and it is taken as that all such amendments, change, apply, embodiment is all at thisIn the range of the spirit or teaching of invention.