CN106200609A - Automatically the device and method of engine of heavy-duty car ECU software version is tested - Google Patents
Automatically the device and method of engine of heavy-duty car ECU software version is tested Download PDFInfo
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- CN106200609A CN106200609A CN201510213026.9A CN201510213026A CN106200609A CN 106200609 A CN106200609 A CN 106200609A CN 201510213026 A CN201510213026 A CN 201510213026A CN 106200609 A CN106200609 A CN 106200609A
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Abstract
The device and method of a kind of automatic test engine of heavy-duty car ECU software version is provided, solves the problem that engine of heavy-duty car ECU occurs unauthorized software brush machine to cause unstable factor.Connect tested engine of heavy-duty car ECU CAN controller and detection terminal CAN controller with plain conductor, form physical connection, make engine of heavy-duty car ECU and detection terminal carry out information by CAN mutual.Detection terminal includes CAN controller, detection terminal CPU, human-computer interaction device, power module, clock module, detection terminal is connected by Handshake Protocol foundation with engine of heavy-duty car ECU, engine of heavy-duty car ECU includes the detection data of software version number by CAN passback, the Monitoring Data that engine of heavy-duty car ECU is returned by detection terminal imports software version logical algorithm unit, detects that whether the most legal the software version of engine of heavy-duty car ECU is.
Description
Technical field
The invention belongs to automotive electronics application, be specifically related to a kind of test engine of heavy-duty car ECU automatically
The method and apparatus of software version.
Background technology
At present, the heavy-duty car CAN bus control system product of domestic-developed mainly includes vehicle body central controller
CU and combination instrument IC and vehicle body load driver three part.As the vehicle body central controller of Vehicle Body Bus gateway,
It on the one hand can be with vehicle engine assembly such as electric-control motor, the automatically controlled list of anti-lock braking system ABS/ASR
Unit realizes communication for information and shares, and on the other hand vehicle body central controller needs to include Assembled lamp photoswitch by collection,
The substantial amounts of switching signals such as windscreen wiper/wash switch, body light switch and key switch, it is achieved the control to body electric system
Function.Additionally, in some cases, vehicle body central controller also needs to gather some sensor signals such as speed sensing
Device signal, fuel-quantity transducer signal, baroceptor signal etc., by signals such as speed, amount of fuel and braking pressures
It is sent to combination instrument by CAN.Combination instrument resolves the disappearing from vehicle body central controller received
Breath, is shown signals such as speed, engine speed, amount of fuel, engine water temperatures by pointer instrument,
The fault alarm information that simultaneously be there is currently by automobile points out driver in the way of liquid crystal display and buzzer warning.
Vehicle body load driver receives and parses through the various switching value messages that vehicle body central controller sends, and completes corresponding vehicle body
The control of load such as various electromagnetic valves, car light, windscreen wiper/spray motor etc..Visible vehicle body central controller is backstage letter
The central hub that breath processes, its effect and status are particularly significant.
And engine of heavy-duty car ECU is heavy-duty car CAN bus control system next one core cell, weight
Type automobile engine is as the core component of heavy-duty car, mechanical part and the guarantor of electronic control unit to these parts
Support and data monitoring is a particularly important function.
For heavy-duty car CAN bus product existing on market, when engine of heavy-duty car ECU occurs
Unauthorized software brush machine, causes engine of heavy-duty car ECU to form software unstable factor, especially at night
Between or during vile weather down train, engine of heavy-duty car ECU once breaks down, and may cause at car load
In state of paralysis, thus cause automobile to stop immediately and the most again cannot start, this can give normal produce and
Life brings great inconvenience.
Summary of the invention
The software version brush that it is an object of the invention to overcome without approval and authorize enters engine of heavy-duty car ECU,
The device and method of a kind of automatic test engine of heavy-duty car ECU software version is provided.Solve heavy-duty car
There is unauthorized software brush machine in Engine ECU, causes engine of heavy-duty car ECU to form software unstable
The problem of factor.
To achieve these goals, the technical solution used in the present invention is:
The device of a kind of automatic test engine of heavy-duty car ECU software version, including detection terminal, detection is eventually
End include detect terminal CAN controller (24), detection terminal CPU, human-computer interaction device, power module,
Clock module, specifically:
CAN controller (30) interface of tested engine of heavy-duty car ECU (22) connects detection terminal
CAN controller (24) interface, constitutes CAN communication system；
Described detection terminal CAN controller (24) connects detection terminal CPU；
Described human-computer interaction device includes that bound of parameter face device, output display device, man-machine interaction are specified in input
Device connects detection terminal CPU；
Described detection terminal CPU obtains the data of the appointment parameter that human-computer interaction device is inputted, and detects terminal
The data of this appointment parameter are transferred to engine of heavy-duty car ECU by CAN controller, and heavy-duty car starts
The appointment parameter obtained is verified by machine ECU, if the consistent Monitoring Data that then sends is to detection terminal, this monitoring
Data include Engine ECU software version number；
Described detection terminal CPU includes that software version logical algorithm unit, software version logical algorithm unit receive
During the Monitoring Data that engine of heavy-duty car ECU sends, start with logical algorithm and carry out engine of heavy-duty car
ECU software version confirms, software version logical algorithm unit connects output display device, and this confirmation result is by defeated
Go out display device output.
Further, described output display device includes display screen and sound prompt device；Connect with plain conductor
CAN controller (30) interface of tested engine of heavy-duty car ECU (22) and detection terminal (26)
Detection terminal CAN controller (24) interface；The clock module of described detection terminal uses clock brilliant
Shake；Described power module uses power supply control chip.
Further, described appointment parameter includes time, Motor Number, the unique sequence numbers of detection terminal self
One or any two combinations or all.
Further, described detection terminal CPU includes actively shaking hands module, and module of actively shaking hands is according to man-machine friendship
The appointment parameter that device is inputted mutually generates handshake authentication code, and module of actively shaking hands connects detection terminal CAN
Controller, handshake authentication code is transferred to engine of heavy-duty car ECU by detection terminal CAN controller；
Engine of heavy-duty car ECU includes that handshake data mates module, Engine ECU handshake data coupling module
After receiving handshake authentication code, solve this appointment parameter according to inversely decoding, verify whether consistent with self initial parameter,
If consistent, shake hands successfully, and then send Engine ECU software by Engine ECU handshake data coupling module
Version number is to detecting terminal, if inconsistent, Engine ECU does not send software version number, or Engine ECU
Software version be unauthorized version, Engine ECU can not send software version number.
Further, time that described module of actively shaking hands is inputted according to human-computer interaction device, Motor Number,
The unique sequence numbers of detection terminal self is synthetically generated handshake authentication code jointly, is sent out to Engine ECU by bus
Send, described handshake data coupling module this handshake authentication code inversely decoding is solved the time of obtaining, Motor Number,
The unique sequence numbers of detection terminal self.
Further, described module of actively shaking hands include the acquisition that is sequentially connected with specify parameter module, encrypting module,
Data outputting module, wherein obtain specify parameter module, by human-computer interaction device input time, Motor Number,
Detection terminal unique sequence numbers carries out storing and being transferred to encrypting module；Encrypting module, starts according to input parameter and adds
Data are encrypted by close algorithm, connect data outputting module after encryption；Data outputting module is by bus even
Connecing the handshake data coupling module of heavy-duty engine ECU, handshake data coupling module includes deciphering module, by solution
Data are decrypted by close algorithm.
Further, described software version logical algorithm unit includes that the calibrating being sequentially connected with starts module, judgement
Tachometer value module, judgement send message time module, start to send handshake message module, Monitoring Data acquisition module,
Monitoring Data acquisition module connection judgment message respectively sends cycle module, judges Version module, it is judged that message sends
Cycle module connects calibrating number of times accumulator module, and calibrating number of times accumulator module connects calibrating number of times judge module, calibrating
Number of times judge module connection judgment Version module, it is judged that Version module connects version abnormal alarm module, version respectively
Normal module, version abnormal alarm module, the normal module of version be all connected with calibrating and terminate module, wherein:
Calibrating starts module, carries out connection judgment tachometer value module after Initialize installation；Judge tachometer value module, logical
Cross bus and obtain engine speed, it may be judged whether reach the tachometer value set, when reaching rear connection judgment transmission message
Between module, the tachometer value not up to set, then connect calibrating number of times judge module；
Judge send message time module, it may be judged whether reach set send message time, when reached between after,
Connect and start to send handshake message module；
Start to send handshake message module, the handshake authentication code specifying parameter to generate is sent to Engine ECU, so
Rear connection Monitoring Data acquisition module；
Monitoring Data acquisition module, it may be judged whether receive the Monitoring Data that Engine ECU returns, Monitoring Data bag
Include the data of software version number, receive then connection judgment Version module, do not receive then connection judgment message and send the cycle
Module；
Judge that the data of the Version module software version number to receiving are compared, as consistent or legal, connect version
Normal module, as inconsistent or non-rule connects version abnormal alarm module；
The normal module of version, connects output display device, version normal information is exported with the form of acousto-optic-electric；
Judge that message sends cycle module, it is judged that wait that the time that Monitoring Data returns is the most overtime, as time-out then connects
Connect calibrating number of times accumulator module, otherwise connect Monitoring Data acquisition module；
Calibrating number of times accumulator module, to shaking hands every time, the failed number of times of time-out adds up, and cumulative data is sent to inspection
Determine number of times judge module；
Calibrating number of times judge module, when examining and determine number of times cumulative data and exceeding setting value, connects version abnormal alarm mould
Block, otherwise connection judgment sends message time module.
Version abnormal alarm module, connects output display device, version abnormal information is exported with the form of acousto-optic-electric.
Further, including tested engine of heavy-duty car ECU (22) and detection terminal (26)；Detection terminal
(26) mainly it is made up of two parts: a part is to detect the CAN controller (24) of terminal (26) i.e.
CAN physical layer；Another part is that microcontroller i.e. detects terminal (26) CPU and other auxiliary element
The detection terminal software version logic algorithm unit of composition, the CAN physical layer of detection terminal (26) and inspection
Survey between terminal (26) software version logical algorithm unit by 4 plain conductors connect positive sources, power supply ground,
CAN sends signal and CAN receives signal；The CAN controller (24) of detection terminal (26) is by CAN
Bus signals is converted to TTL reception signal (28) and is input to detect terminal software version logic algorithm unit (27)
In, and produced TTL by detection terminal software version logic algorithm unit (27) and send signal (25) by detection
The CAN controller (24) of terminal (26) is converted to CAN signal, is sent in CAN；
Tested engine of heavy-duty car ECU (22) is controlled by the CAN of engine of heavy-duty car ECU (22)
Device (30), is converted to TTL by the Monitoring instruction CAN signal received from detection terminal (26) and receives
Signal is input to engine of heavy-duty car ECU (22), and engine of heavy-duty car ECU (22) is by Monitoring Data TTL
It is total that transmission signal (31) is converted to CAN by the CAN controller (30) of engine of heavy-duty car ECU
Line signal replys Monitoring Data to detecting terminal (26).
A kind of method of automatic test engine of heavy-duty car ECU software version, uses detection terminal, and detection is eventually
End includes human-computer interaction device, CAN controller, detection terminal CPU, power module, including walking as follows
Rapid:
The first step, is entered by CAN between engine of heavy-duty car ECU (22) and detection terminal (26)
Row connects；
Second step, sends Monitoring instruction, prison by detection terminal (26) to engine of heavy-duty car ECU (22)
Surveying instruction and include instruction of shaking hands, after shaking hands successfully, number is monitored in engine of heavy-duty car ECU (22) passback accordingly
According to, Monitoring Data includes the information of the software version of engine of heavy-duty car ECU, and otherwise, heavy-duty car starts
Machine ECU does not return corresponding Monitoring Data；
3rd step, after shaking hands successfully, Monitoring Data is transmitted into the software version logical algorithm list of detection terminal CPU
Unit, the software version of this unit detection engine of heavy-duty car ECU, if engine of heavy-duty car ECU software
It is incorrect that version is detected version, and display screen and voice message by detection terminal provide warning, tested heavy type
Automobile engine ECU software version fails to reach the requirement of current complete machine solidification version；If heavy-duty car starts
Machine ECU software version is detected version and correctly reaches the requirement of current complete machine solidification version, determines heavy vapour with this
Car engine ECU software version.
Further, the rotary speed data that startup receives engine of heavy-duty car ECU transmission in detection terminal every time reaches
After requiring to detection terminal calibrating, when arriving detection terminal monitoring message delivery time, detection terminal sends detection report
Literary composition, when detecting terminal and receiving the Monitoring Data that engine of heavy-duty car ECU sends, starts with logical algorithm
Carry out engine of heavy-duty car ECU software version to confirm；If confirm as authorizing perhaps can engine of heavy-duty car
ECU software version, then this calibrating terminates；If until the next transmission cycle after detection terminal detection messages transmission
When all not receiving the Monitoring Data that engine of heavy-duty car ECU sends in a period of time before beginning, then circulation is held
The above-mentioned logic flow of row, to more than set point number, does not the most all receive the monitoring that engine of heavy-duty car ECU sends
The Monitoring Data that data or the engine of heavy-duty car ECU that receives send through logical algorithm confirm as unauthorized or
The engine of heavy-duty car ECU software version of license, then being considered as this engine of heavy-duty car ECU software version is
Illegal version；By this event with the alarm form of acousto-optic-electric, by detection terminal alarms.
Accompanying drawing explanation
Fig. 1 is the process box of an embodiment of the device of test engine of heavy-duty car ECU software version automatically
Figure；
Fig. 2 is an enforcement of the detection terminal of the device of test engine of heavy-duty car ECU software version automatically
The structured flowchart of example；
Fig. 3 is the part electricity of an embodiment of the device of test engine of heavy-duty car ECU software version automatically
Road schematic diagram；
Fig. 4 is another portion of an embodiment of the device of test engine of heavy-duty car ECU software version automatically
Parallel circuit schematic diagram；
Fig. 5 is the circuit board of an embodiment of the device of test engine of heavy-duty car ECU software version automatically
Connect figure；
Fig. 6 is that the work of an embodiment of the device of test engine of heavy-duty car ECU software version automatically is patrolled
Collect flow chart；
Fig. 7 is that the device of test engine of heavy-duty car ECU software version automatically is shaken hands with Engine ECU and number
Flow chart according to an embodiment of exchange verification；
Fig. 8 is the active of detection terminal CPU of the device of test engine of heavy-duty car ECU software version automatically
Shake hands the structure chart of an embodiment of module；
Fig. 9 is the software of detection terminal CPU of the device of test engine of heavy-duty car ECU software version automatically
The structure chart of one embodiment of version logic algorithm unit.
Detailed description of the invention
In conjunction with drawings and the specific embodiments, the present invention is further described:
Automatically the device of test engine of heavy-duty car ECU software version is by engine of heavy-duty car ECU and detection
Terminal, is connected into a CAN communication system by two plain conductors, constitutes whole heavy-duty car and starts
The device of machine ECU software version.Engine of heavy-duty car ECU include CPU and CAN controller and
Some other auxiliary element such as clock crystal oscillator, power supply control chip etc.；Detection terminal includes that CPU and CAN is total
Lane controller and some other auxiliary element such as clock crystal oscillator, power supply control chip etc..Also include man-machine interaction
Device, human-computer interaction device includes that bound of parameter face device, output display device, human-computer interaction device are specified in input
Connect detection terminal CPU；Described output display device includes display screen and sound prompt device；Described appointment
Parameter includes or any two combinations or complete of the unique sequence numbers of time, Motor Number, detection terminal self
Portion.In practical operation, system designer can be arranged according to the various unique identifiers of device or detection terminal
Become the appointment parameter of device, then to dress by the way of conventional operation method is encrypted or synthesizes identifying code
Put and carry out framework.
Detection terminal (26) is mainly made up of two parts: a part is the CAN control of detection terminal (26)
Device processed (24) i.e. CAN physical layer；Another part be microcontroller i.e. detect terminal (26) CPU and
The detection terminal software version logic algorithm unit of other auxiliary element composition, the CAN of detection terminal (26) is total
It is connected power supply by 4 plain conductors between line physical layer with detection terminal (26) software version logical algorithm unit
Positive pole, power supply ground, CAN send signal and CAN receives signal；The CAN control of detection terminal (26)
CAN signal is converted to TTL reception signal (28) and is input to detect terminal software version by device processed (24)
In logical algorithm unit (27), and produced TTL by detection terminal software version logic algorithm unit (27) and send
Signal (25) is converted to CAN signal by the CAN controller (24) of detection terminal (26),
It is sent in CAN；Tested engine of heavy-duty car ECU (22) passes through engine of heavy-duty car ECU (22)
CAN controller (30), will be from detection terminal (26) the Monitoring instruction CAN signal that receive
Be converted to TTL reception signal and be input to engine of heavy-duty car ECU (22), engine of heavy-duty car ECU (22)
Monitoring Data TTL is sent the signal (31) the CAN controller (30) by engine of heavy-duty car ECU
Be converted to CAN signal and reply Monitoring Data to detecting terminal (26).
Fig. 1 present invention is used for the work block diagram of the device of test engine of heavy-duty car ECU software version automatically,
Including engine of heavy-duty car ECU device (22) and detection terminal (26).Two parts are by holding wire CAN_L (29)
Connect with CAN_H (23) plain conductor and realize communicating.Its heavy Duty Automobile Engine ECU device 22 is main
Will by engine of heavy-duty car ECU CPU device 20, engine of heavy-duty car ECU CAN controller 30,
Holding wire CAN_TX 31 and holding wire CAN_RX 21 forms；Detection terminal 26 is total by detection terminal CAN
Lane controller 24 and detection terminal CPU 27 are connected by holding wire CAN_RX 28 and CAN_TX 25.
Engine of heavy-duty car ECU CPU 20 transmits TTL signal 31 to engine of heavy-duty car ECU CAN
Bus control unit 30, engine of heavy-duty car ECU CAN controller is realized by transmission CAN signal 29
Communication with detection terminal CAN controller 24；After detection terminal receives CAN signal, to detection eventually
End CPU 27 sends TTL signal 28, and detection terminal CPU 27 sends TTL signal and feeds back to detection eventually after processing
End CAN controller 24, terminal CAN controller 24 feeds back CAN message 23 to heavy-duty car and sends out
Motivation ECU CAN controller 30, engine of heavy-duty car ECU CAN controller 30 is to heavy type
Automobile engine ECU CPU 20 feeds back TTL information 21, thus completes whole communication process.
The present invention of Fig. 2 the present embodiment is for the device knot of test engine of heavy-duty car ECU software version automatically
Structure block diagram.It is mainly by detection terminal CAN controller 24, power module 06, detection terminal CPU 27
Form with clock module 09.Power module 06 is total to detection terminal CAN by circuit 16 and circuit 15 respectively
Lane controller 24 and detection terminal CPU 27 supply electricity；Clock module 09 passes through circuit 17 to detection terminal
CPU transmits temporal information.Detection terminal CAN controller and detection terminal CPU are believed by transmission TTL
Number realize communication.
Fig. 3 is the schematic diagram of device automatically testing engine of heavy-duty car ECU software version of the present embodiment, it
Mainly turned 3.3V LDO power supply chip LM1117-33 and CPU by CAN transceiver TJA1040,5V
LPC1768 is constituted.Powered to CPU LPC1768 and CAN transceiver TJA1040 by power supply chip.
CPU LPC176845 pin P0.0 connects CAN transceiver TJA10404 pin rxd, 46 pin P0.0
Connect CAN transceiver TJA10401 pin txd.
Fig. 6 is that the device software function of the engine of heavy-duty car ECU software version of test automatically of the present embodiment is real
Existing logical flow chart.After calibrating function starts, it is judged that check whether rotating speed reaches the tachometer value Kr/min set, should
Kr/min tachometer value is set by system designer, if do not reached, returns operation；If reached, detect whether
Arriving and send the detection messages time, if do not reached, returning；If reached, perform to start to send a frame detection report
Literary composition.Detect whether to receive engine of heavy-duty car ECU Monitoring Data, if it is, detection confirms that heavy-duty car is sent out
Motivation ECU version is the most illegal, is, directly performs the abnormal report calibrating of engine of heavy-duty car ECU version different
Often warning message；Otherwise performing heavy truck automobile engine ECU version normal, calibrating function terminates.Detect whether
Receive engine of heavy-duty car ECU Monitoring Data, if it does not, detect whether to send beyond next frame detection messages
Cycle Nms, continues detection if it is not, then return；If it is, perform calibrating number of times to add 1；Then calibrating is detected
Whether number of times, more than or equal to 3, detects whether to reach to send the detection messages time if it is not, then return；If it is,
Performing the abnormal calibrating abnormal alarm information of reporting of engine of heavy-duty car ECU version, calibrating function terminates.Calibrating
Number of times can also be other numerical value beyond 3.The most all do not receive the monitoring that engine of heavy-duty car ECU sends
The Monitoring Data that data or the engine of heavy-duty car ECU that receives send through logical algorithm confirm as unauthorized or
The engine of heavy-duty car ECU software version of license, then being considered as this engine of heavy-duty car ECU software version is
Illegal version.By this event with the alarm form of acousto-optic-electric, by detection terminal alarms.
Fig. 7 be a kind of automatic test engine of heavy-duty car ECU software version of the present embodiment device with start
Machine ECU shakes hands and data exchange checking process figure.Automatically the dress of engine of heavy-duty car ECU software version is tested
The module of actively shaking hands put sends according to time, Motor Number to Engine ECU, and test heavy-duty car is sent out automatically
The handshake authentication code of the device unique sequence numbers synthesis of motivation ECU software version.Engine ECU handshake data
Joining after module receives this signal, pick out time, Motor Number according to inversely decoding, test heavy-duty car starts automatically
The device unique sequence numbers of machine ECU software version, verifies whether consistent with initial parameter.If consistent, shake hands into
Merit, and then send Engine ECU software version number to automatically surveying by Engine ECU handshake data coupling module
The device of examination engine of heavy-duty car ECU software version.If inconsistent or Engine ECU is software version
Unauthorized version, then Engine ECU does not send software version number.In like manner Engine ECU handshake data coupling mould
Group uses anti-manner of decryption, decrypted symbols.
Fig. 8, Fig. 9 are to the device of a kind of automatic test engine of heavy-duty car ECU software version of the present embodiment
Concrete module is further described:
Parameter module, encrypting module, data outputting module are specified in the acquisition that module of actively shaking hands includes being sequentially connected with,
Wherein obtain and specify parameter module, by the time of human-computer interaction device input, Motor Number, the unique sequence of detection terminal
Row number carry out storing and being transferred to encrypting module；Encrypting module, starts AES according to input parameter and enters data
Row encryption, connects data outputting module after encryption；Data outputting module connects heavy-duty engine by bus
The handshake data coupling module of ECU, handshake data coupling module includes deciphering module, data is entered with decipherment algorithm
Row deciphering.
Software version logical algorithm unit includes that the calibrating being sequentially connected with starts module, judges tachometer value module, judgement
Sending message time module, start to send handshake message module, Monitoring Data acquisition module, Monitoring Data obtains mould
Block connection judgment message respectively sends cycle module, judges Version module, it is judged that message sends cycle module and connects inspection
Determining number of times accumulator module, calibrating number of times accumulator module connects calibrating number of times judge module, and calibrating number of times judge module is even
Connect judgement Version module, it is judged that Version module connects version abnormal alarm module, the normal module of version, version respectively
The normal module of abnormal alarm module, version is all connected with calibrating and terminates module, wherein:
Calibrating starts module, carries out connection judgment tachometer value module after Initialize installation；Judge tachometer value module, logical
Cross bus and obtain engine speed, it may be judged whether reach the tachometer value set, when reaching rear connection judgment transmission message
Between module, the tachometer value not up to set, then connect calibrating number of times judge module；
Judge send message time module, it may be judged whether reach set send message time, when reached between after,
Connect and start to send handshake message module；
Start to send handshake message module, the handshake authentication code specifying parameter to generate is sent to Engine ECU, so
Rear connection Monitoring Data acquisition module；
Monitoring Data acquisition module, it may be judged whether receive the Monitoring Data that Engine ECU returns, Monitoring Data bag
Include the data of software version number, receive then connection judgment Version module, do not receive then connection judgment message and send the cycle
Module；
Judge that the data of the Version module software version number to receiving are compared, as consistent or legal, connect version
Normal module, as inconsistent or non-rule connects version abnormal alarm module；
The normal module of version, connects output display device, version normal information is exported with the form of acousto-optic-electric；
Judge that message sends cycle module, it is judged that wait that the time that Monitoring Data returns is the most overtime, as time-out then connects
Connect calibrating number of times accumulator module, otherwise connect Monitoring Data acquisition module；
Calibrating number of times accumulator module, to shaking hands every time, the failed number of times of time-out adds up, and cumulative data is sent to inspection
Determine number of times judge module；
Calibrating number of times judge module, when examining and determine number of times cumulative data and exceeding setting value, connects version abnormal alarm mould
Block, otherwise connection judgment sends message time module.
Version abnormal alarm module, connects output display device, version abnormal information is exported with the form of acousto-optic-electric.
Above module of actively shaking hands, concrete the setting of each module of each module of software version logical algorithm unit
Meter and executive mode are the technological means that those skilled in the art are capable of.
A kind of method of automatic test engine of heavy-duty car ECU software version, uses detection terminal, and detection is eventually
End includes human-computer interaction device, CAN controller, detection terminal CPU, power module, including walking as follows
Rapid:
The first step, is entered by CAN between engine of heavy-duty car ECU (22) and detection terminal (26)
Row connects；
Second step, sends Monitoring instruction, prison by detection terminal (26) to engine of heavy-duty car ECU (22)
Surveying instruction and include instruction of shaking hands, after shaking hands successfully, number is monitored in engine of heavy-duty car ECU (22) passback accordingly
According to, Monitoring Data includes the information of the software version of engine of heavy-duty car ECU, and otherwise, heavy-duty car starts
Machine ECU does not return corresponding Monitoring Data；
3rd step, after shaking hands successfully, Monitoring Data is transmitted into the software version logical algorithm list of detection terminal CPU
Unit, the software version of this unit detection engine of heavy-duty car ECU, if engine of heavy-duty car ECU software
It is incorrect that version is detected version, and display screen and voice message by detection terminal provide warning, tested heavy type
Automobile engine ECU software version fails to reach the requirement of current complete machine solidification version；If heavy-duty car starts
Machine ECU software version is detected version and correctly reaches the requirement of current complete machine solidification version, determines heavy vapour with this
Car engine ECU software version.
In the methods described above, startup receives, in detection terminal, the rotating speed that engine of heavy-duty car ECU sends every time
After data reach to detect terminal calibrating requirement, when arriving detection terminal monitoring message delivery time, detection terminal sends
Detection messages, when detecting terminal and receiving the Monitoring Data that engine of heavy-duty car ECU sends, starts with and patrols
Collect algorithm and carry out the confirmation of engine of heavy-duty car ECU software version；If confirm as authorizing perhaps can heavy-duty car
Engine ECU software version, then this calibrating terminates；If until next after detection terminal detection messages transmission
The transmission cycle start before a period of time in all do not receive engine of heavy-duty car ECU send Monitoring Data time,
Then circulation performs above-mentioned logic flow to more than set point number, does not the most all receive engine of heavy-duty car ECU and sends out
The Monitoring Data that the Monitoring Data sent or the engine of heavy-duty car ECU received send is confirmed as through logical algorithm
Unauthorized perhaps can engine of heavy-duty car ECU software version, then be considered as this engine of heavy-duty car ECU soft
Part version is illegal version；By this event with the alarm form of acousto-optic-electric, by detection terminal alarms.
Finally should be noted that: above example is only in order to illustrate that the technical scheme of this case is not intended to limit；To the greatest extent
This case has been described in detail by pipe with reference to preferred embodiment, those of ordinary skill in the field it is understood that
Still the detailed description of the invention of this case can be modified or portion of techniques feature is carried out equivalent；And not
Departing from the spirit of this case technical scheme, it all should be contained in the middle of the technical scheme scope that this case is claimed.
Claims (10)
1. the device of an automatic test engine of heavy-duty car ECU software version, it is characterised in that include that detection is eventually
End, detection terminal includes detecting terminal CAN controller (24), detection terminal CPU, man-machine interaction
Device, power module, clock module, specifically:
CAN controller (30) interface of tested engine of heavy-duty car ECU (22) connects detection
Terminal CAN controller (24) interface, constitutes CAN communication system；
Described detection terminal CAN controller (24) connects detection terminal CPU；
Described human-computer interaction device includes that bound of parameter face device, output display device are specified in input, man-machine
Interactive device connects detection terminal CPU；
Described detection terminal CPU obtains the data of the appointment parameter that human-computer interaction device is inputted, and detection is eventually
The data of this appointment parameter are transferred to engine of heavy-duty car ECU, heavy vapour by end CAN controller
The appointment parameter obtained is verified by car engine ECU, then sends Monitoring Data to detection eventually as consistent
End, this Monitoring Data includes Engine ECU software version number；
Described detection terminal CPU includes software version logical algorithm unit, software version logical algorithm unit
When receiving the Monitoring Data that engine of heavy-duty car ECU sends, start with logical algorithm and carry out heavy vapour
Car engine ECU software version confirms, software version logical algorithm unit connects output display device, should
Confirm that result is exported by output display device.
The device of a kind of automatic test engine of heavy-duty car ECU software version the most according to claim 1, its
Being characterised by, described output display device includes display screen and sound prompt device；Connect with plain conductor
CAN controller (30) interface of tested engine of heavy-duty car ECU (22) and detection terminal (26)
Detection terminal CAN controller (24) interface；The clock module of described detection terminal uses clock
Crystal oscillator；Described power module uses power supply control chip.
The device of a kind of automatic test engine of heavy-duty car ECU software version the most according to claim 1, its
Being characterised by, described appointment parameter includes time, Motor Number, the unique sequence numbers of detection terminal self
One or any two combinations or all.
4. according to the arbitrary described a kind of automatic test engine of heavy-duty car ECU software version of claims 1 to 3
Device, it is characterised in that
Described detection terminal CPU includes actively shaking hands module, and module of actively shaking hands is according to human-computer interaction device
The appointment parameter inputted generates handshake authentication code, and module of actively shaking hands connects detection terminal CAN control
Device processed, handshake authentication code is transferred to engine of heavy-duty car ECU by detection terminal CAN controller；
Engine of heavy-duty car ECU includes that handshake data mates module, and Engine ECU handshake data is mated
After module receives handshake authentication code, solve this appointment parameter according to inversely decoding, verify whether original with self
Parameter is consistent, if consistent, shakes hands successfully, and then is sent by Engine ECU handshake data coupling module
Engine ECU software version number is to detecting terminal, if inconsistent, Engine ECU does not send software version
Number, or the software version of Engine ECU is unauthorized version, Engine ECU can not send software version
This number.
The device of a kind of automatic test engine of heavy-duty car ECU software version the most according to claim 4, its
Be characterised by, time that described module of actively shaking hands is inputted according to human-computer interaction device, Motor Number,
The unique sequence numbers of detection terminal self is synthetically generated handshake authentication code, jointly by bus to Engine ECU
Sending, this handshake authentication code inversely decoding is solved the time of obtaining, starts by described handshake data coupling module
Plane No., the unique sequence numbers of detection terminal self.
The device of a kind of automatic test engine of heavy-duty car ECU software version the most according to claim 4, its
Be characterised by, described module of actively shaking hands include the acquisition that is sequentially connected with specify parameter module, encrypting module,
Data outputting module, wherein obtains and specifies parameter module, by time, the electromotor of human-computer interaction device input
Number, detection terminal unique sequence numbers carry out storing and being transferred to encrypting module；Encrypting module, according to input ginseng
Number starts AES and is encrypted data, connects data outputting module after encryption；Data output mould
Block connects the handshake data coupling module of heavy-duty engine ECU by bus, and handshake data coupling module includes
Data are decrypted by deciphering module with decipherment algorithm.
7. according to the arbitrary described a kind of automatic test engine of heavy-duty car ECU software version of claims 1 to 3
Device, it is characterised in that described software version logical algorithm unit includes that the calibrating being sequentially connected with starts mould
Block, judge tachometer value module, judge send message time module, start to send handshake message module, monitoring
Data acquisition module, Monitoring Data acquisition module connection judgment message respectively sends cycle module, judges version
Module, it is judged that message sends cycle module and connects calibrating number of times accumulator module, and calibrating number of times accumulator module connects
Calibrating number of times judge module, examines and determine number of times judge module connection judgment Version module, it is judged that Version module is respectively
Connecting version abnormal alarm module, the normal module of version, version abnormal alarm module, the normal module of version are equal
Connect calibrating and terminate module, wherein:
Calibrating starts module, carries out connection judgment tachometer value module after Initialize installation；Judge tachometer value module,
Obtain engine speed by bus, it may be judged whether reach the tachometer value set, reach rear connection judgment and send
Message time module, the tachometer value not up to set, then connect calibrating number of times judge module；
Judge to send message time module, it may be judged whether reach the time sending message set, when reached
After between, connect and start to send handshake message module；
Start to send handshake message module, the handshake authentication code specifying parameter to generate is sent to electromotor
ECU, then connects Monitoring Data acquisition module；
Monitoring Data acquisition module, it may be judged whether receive the Monitoring Data that Engine ECU returns, monitors number
According to including the data of software version number, receive then connection judgment Version module, do not receive then connection judgment message
Send cycle module；
Judge that the data of the Version module software version number to receiving are compared, as consistent or legal, connect
The normal module of version, as inconsistent or non-rule connects version abnormal alarm module；
The normal module of version, connects output display device, version normal information is exported with the form of acousto-optic-electric；
Judge that message sends cycle module, it is judged that wait that the time that Monitoring Data returns is the most overtime, such as time-out
Then connect calibrating number of times accumulator module, otherwise connect Monitoring Data acquisition module；
Calibrating number of times accumulator module, to shaking hands every time, the failed number of times of time-out adds up, and cumulative data sends
Give calibrating number of times judge module；
Calibrating number of times judge module, when examining and determine number of times cumulative data and exceeding setting value, connects the abnormal report of version
Alert module, otherwise connection judgment sends message time module.
Version abnormal alarm module, connects output display device, by version abnormal information with the form of acousto-optic-electric
Output.
8. according to the arbitrary described a kind of automatic test engine of heavy-duty car ECU software version of claims 1 to 3
Device, it is characterised in that include tested engine of heavy-duty car ECU (22) and detection terminal (26)；Inspection
Survey terminal (26) to be mainly made up of two parts: a part is the CAN controller of detection terminal (26)
(24) i.e. CAN physical layer；Another part be microcontroller i.e. detect terminal (26) CPU and
The detection terminal software version logic algorithm unit of other auxiliary element composition, the CAN of detection terminal (26)
Between bus physical layer and detection terminal (26) software version logical algorithm unit by 4 plain conductors even
Connect positive source, power supply ground, CAN sends signal and CAN receives signal；The CAN of detection terminal (26)
CAN signal is converted to TTL reception signal (28) and is input to detection eventually by bus control unit (24)
In end software version logical algorithm unit (27), and by detection terminal software version logic algorithm unit (27)
Produce TTL and send the signal (25) CAN controller (24) conversion by detection terminal (26)
For CAN signal, it is sent in CAN；Tested engine of heavy-duty car ECU (22) is passed through
The CAN controller (30) of engine of heavy-duty car ECU (22), will connect from detection terminal (26)
The Monitoring instruction CAN signal received is converted to TTL reception signal and is input to engine of heavy-duty car
Monitoring Data TTL is sent signal (31) by ECU (22), engine of heavy-duty car ECU (22) to be passed through
The CAN controller (30) of engine of heavy-duty car ECU is converted to CAN signal and replys prison
Survey data to detecting terminal (26).
9. the method for an automatic test engine of heavy-duty car ECU software version, it is characterised in that use detection eventually
End, detection terminal includes human-computer interaction device, CAN controller, detection terminal CPU, power module,
Comprise the steps:
The first step, total by CAN between engine of heavy-duty car ECU (22) and detection terminal (26)
Line is attached；
Second step, sends Monitoring instruction by detection terminal (26) to engine of heavy-duty car ECU (22),
Monitoring instruction includes instruction of shaking hands, and after shaking hands successfully, engine of heavy-duty car ECU (22) passback is corresponding
Monitoring Data, Monitoring Data includes the information of the software version of engine of heavy-duty car ECU, otherwise, weight
Type automobile engine ECU does not return corresponding Monitoring Data；
3rd step, after shaking hands successfully, Monitoring Data is transmitted into the software version logic of detection terminal CPU and calculates
Method unit, the software version of this unit detection engine of heavy-duty car ECU, if engine of heavy-duty car
ECU software version be detected version incorrect then by the detection display screen of terminal and voice message to responding
Accusing, tested engine of heavy-duty car ECU software version fails to reach the requirement of current complete machine solidification version；
If engine of heavy-duty car ECU software version is detected version correctly reaches current complete machine solidification version
Requirement, determines engine of heavy-duty car ECU software version with this.
The method of a kind of automatic test engine of heavy-duty car ECU software version the most according to claim 9, its
Being characterised by, the rotary speed data that startup receives engine of heavy-duty car ECU transmission in detection terminal every time reaches
After detection terminal calibrating requires, when arriving detection terminal monitoring message delivery time, detection terminal sends detection
Message, when detecting terminal and receiving the Monitoring Data that engine of heavy-duty car ECU sends, starts with logic
Algorithm carries out engine of heavy-duty car ECU software version and confirms；If confirm as authorizing perhaps can heavy-duty car
Engine ECU software version, then this calibrating terminates；If until next after detection terminal detection messages transmission
The individual transmission cycle start before a period of time in all do not receive engine of heavy-duty car ECU send Monitoring Data
Time, then circulation performs above-mentioned logic flow to more than set point number, does not the most all receive engine of heavy-duty car
Monitoring Data that ECU sends or the Monitoring Data that the engine of heavy-duty car ECU that receives sends are through logic
Algorithm confirm as unauthorized perhaps can engine of heavy-duty car ECU software version, then be considered as this heavy-duty car
Engine ECU software version is illegal version；By this event with the alarm form of acousto-optic-electric, by detection eventually
End is reported to the police.
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| CN111796583A (en) * | 2020-08-21 | 2020-10-20 | 上海星融汽车科技有限公司 | Vehicle ECU (electronic control Unit) identification method and system and vehicle diagnosis equipment |
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