CN109992464A - A kind of VCU automatic test approach that integrated application layer software is write with a brush dipped in Chinese ink - Google Patents
A kind of VCU automatic test approach that integrated application layer software is write with a brush dipped in Chinese ink Download PDFInfo
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
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Abstract
The invention discloses a kind of VCU automatic test approach that integrated application layer software is write with a brush dipped in Chinese ink, this method carries out hardware capability test first, ensure to write with a brush dipped in Chinese ink application layer software again after hardware capability test passes through, finally carry out software version verification, confirmation software is write with a brush dipped in Chinese ink and version verifies output test after passing through and passes through, and VCU inflow subsequent processing is processed or tested accordingly.If there is test not pass through, output phase should test unacceptable test item information, and VCU is prevented to flow into subsequent processing.The present invention can be reduced the offline test step of VCU, and improving production efficiency improves production production capacity.
Description
Technical field
The present invention relates to vehicle control software technology fields, in particular to a kind of VCU that integrated application layer software is write with a brush dipped in Chinese ink
(Vehicle Control Unit, vehicle control unit of electric vehicle) automatic test approach.
Background technique
With the enhancing of the environmental consciousness of consumer and the requirement of national policy, the new-energy automobile market demand in China
It is increasing, the growth of explosion type was especially presented in recent years.According to the statistics of electric car resource network, in China in 2011
New-energy automobile yield only 0.8 ten thousand, Zhan Quanguo auto output specific gravity is less than one thousandth；China's new-energy automobile produces within 2017
Amount has reached 79.4 ten thousand, and Zhan Quanguo auto output specific gravity is more than 2.7%.The first quarter in 2018, China's new-energy automobile produce
Pin respectively reaches 150,000 and 14.3 ten thousand, increases by 156.9% and 154.3% respectively on year-on-year basis.
In today that new-energy automobile flourishes, important spare part of the VCU as new-energy automobile, demand also exists
Increasingly increase.In order to meet the market demand, then need to be promoted the production efficiency of VCU, but current test method limits VCU's
Production capacity is promoted.
VCU in the production line can be monitored each process process of production, will do it functional test before offline.But mesh
Preceding VCU test equipment can only carry out fractional hardware functional test, cannot write with a brush dipped in Chinese ink application layer software, and it is even more impossible to carry out software version
Number verification, is easy to appear the wrong software of brush after offline, need additionally to increase that software writes with a brush dipped in Chinese ink station and software version verifies station, extension
Downtime is unfavorable for promoting VCU production capacity.
Summary of the invention
The present invention provides a kind of VCU automatic test approach that integrated application layer software is write with a brush dipped in Chinese ink, and it is offline that this method can be reduced VCU
Test step, improving production efficiency improve production production capacity.
In order to achieve this, the VCU automatic test approach that integrated application layer software designed by the present invention is write with a brush dipped in Chinese ink, feature
It is, this method comprises the following steps:
Step 1: the test of VCU hardware capability being carried out to VCU, if all test items in the test of VCU hardware capability are equal
Pass through, then enter step 2, tests unacceptable project if existed in the test of VCU hardware capability, output phase should test obstructed
The test item information crossed, and stop current VCU test testing at unacceptable project；
Step 2: corresponding VCU application layer software is write with a brush dipped in Chinese ink to VCU；
Step 3: the VCU progress VCU software for having write with a brush dipped in Chinese ink VCU application layer software being write with a brush dipped in Chinese ink and version verifies, if VCU software
Write with a brush dipped in Chinese ink and version verification pass through, then export VCU and test automatically through information, if VCU software write with a brush dipped in Chinese ink and version verify in exist
The unacceptable project of check test, then output phase answers the unacceptable test item information of check test, and unacceptable testing
Stop current VCU test at project.
In the step 1 of above-mentioned technical proposal, carrying out the test of VCU hardware capability to VCU successively includes: that VCU is powered on and lower electricity
Time test, VCU dark current and quiescent current test, the test of VCU running current, VCU power on wake-up and dormancy awakening function
Energy test, VCU number high side voltage and low polygonal voltage input test, VCU resistance and the test of voltage-type simulation input, VCU number
High side voltage and low polygonal voltage output test, the test of VCU motor driven, the test of VCU simulation output, the output of VCU probe power
Test, VCU pulse signal output and input test, CAN network Lin network and ethernet communication test.
In the step 1 of above-mentioned technical proposal, in the step 3, VCU software is write with a brush dipped in Chinese ink and version verification successively includes
BootLoader (bootstrap before system starts) functional test, (Unified Diagnostic Services unifies UDS
Diagnostic service) functional test, VCU software writes with a brush dipped in Chinese ink online, the verification of VCU software version, the verification of VCU hardware version, the inspection of VCU sequence number
It surveys, VCU produces date detection.
Test method of the invention covers all hardware capabilities of VCU, is able to achieve software and writes with a brush dipped in Chinese ink and software this verification, phase
Than current offline testing process, it can eliminate because of leakage brush program bring problem after sale, promote VCU Function detection accuracy,
The product stream for avoiding software function from lacking goes out producing line；Required station can also be reduced, downtime is reduced, be conducive to VCU
Production capacity is promoted.It writes with a brush dipped in Chinese ink in no integrated software with before software version verification, it is soft by manually carrying out writing with a brush dipped in Chinese ink to need to increase a station
Part and software version is appraised and decided, can directly be carried out by VCU test equipment after integrated, not need manually to be intervened.
Detailed description of the invention
Fig. 1 is main flow chart of the invention；
Fig. 2 is hardware capability test flow chart in the present invention；
Fig. 3 is that software is write with a brush dipped in Chinese ink and checkout of version number flow chart in the present invention；
Fig. 4 is power-on time test philosophy schematic diagram in the present invention；
Fig. 5 is dark current test philosophy schematic diagram in the present invention；
Fig. 6 is lower electricity time detection schematic diagram in the present invention；
Fig. 7 is quiescent current detection schematic diagram in the present invention；
Fig. 8 is running current detection schematic diagram in the present invention；
Fig. 9 is to power on arousal function in the present invention to check schematic illustration；
Figure 10 is dormancy awakening functional check schematic illustration in the present invention；
Figure 11 is motor driven test philosophy schematic diagram in the present invention；
Figure 12 is ethernet communication test philosophy schematic diagram in the present invention；
Figure 13 is BootLoader Function detection schematic illustration in the present invention；
Figure 14 is UDS Function detection schematic illustration in the present invention；
Figure 15 is that software version verification and hardware version verify schematic illustration in the present invention；
Figure 16 is sequence number detection schematic illustration in the present invention；
Figure 17 is date of manufacture detection schematic diagram in the present invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
A kind of VCU automatic test approach that integrated application layer software is write with a brush dipped in Chinese ink designed by the present invention, as shown in Figure 1, the party
Method includes the following steps:
Step 1: the test of VCU hardware capability being carried out to VCU, if all test items in the test of VCU hardware capability are equal
Pass through, then enter step 2, tests unacceptable project if existed in the test of VCU hardware capability, output phase should test obstructed
The test item information crossed, and stop current VCU test testing at unacceptable project；
Step 2: corresponding VCU application layer software is write with a brush dipped in Chinese ink to VCU；
Step 3: the VCU progress VCU software for having write with a brush dipped in Chinese ink VCU application layer software being write with a brush dipped in Chinese ink and version verifies, if VCU software
Write with a brush dipped in Chinese ink and version verification pass through, then export VCU and test automatically through information, if VCU software write with a brush dipped in Chinese ink and version verify in exist
The unacceptable project of check test, then output phase answers the unacceptable test item information of check test, and unacceptable testing
Stop current VCU test at project.
In the step 1 of above-mentioned technical proposal, as shown in Fig. 2, carrying out the test of VCU hardware capability to VCU successively includes: VCU
Power on and lower electric time test, VCU dark current and quiescent current test, the test of VCU running current, VCU power on wake-up and
Dormancy awakening functional test, VCU number high side voltage and low polygonal voltage input test, VCU resistance and voltage-type simulation input are surveyed
Examination, VCU number high side voltage and low polygonal voltage output test, the test of VCU motor driven, the test of VCU simulation output, VCU sensing
Device power supply output test, VCU pulse signal output and input test, CAN network Lin network and ethernet communication test.
In above-mentioned technical proposal, when VCU resistance and voltage-type simulation input are tested, VCU test equipment can set needs
The resistance value and voltage value of test, in test, these resistance and voltage can be input in VCU by conducting wire, and VCU detects this
Can feed back to VCU test equipment after a little resistance and voltage by CAN communication, VCU test equipment by the data of parsing feedback with
Original resistance and voltage value compares, if unanimously, test passes through；Otherwise, test crash.
The test of VCU simulation output is VCU test equipment according to communication protocol, and control command is input to by CAN communication
In VCU, VCU can export corresponding voltage value after receiving control command, and VCU test equipment is by the voltage that detection VCU is exported
It is no to be consistent with control command, if unanimously, test passes through；Otherwise, test crash.
The output test of VCU probe power is that control command is input in VCU by VCU test equipment by CAN communication,
VCU can export probe power, and VCU test equipment is between 5V ± 0.1, if in 5V by the voltage value of detection output
Between ± 0.1, then test passes through；Otherwise, test does not pass through.
VCU pulse signal input test: VCU test equipment can input a pulse signal by conducting wire, after VCU is received,
The frequency and duty ratio of this pulse signal can be detected, and VCU test equipment is fed back to by CAN communication, test passes through comparison
The data received can decide whether that test passes through with the pulse signal for inputing to VCU, if unanimously, test passes through；Otherwise
Test does not pass through.
The test of VCU output of pulse signal: VCU test equipment is sent to VCU by CAN communication and is controlled according to communication protocol
Instruction, VCU can issue corresponding pulse signal after receiving, the pulse signal that VCU test equipment is received by detection whether with control
Whether system order is consistent, it can be determined that by test, test and pass through if consistent；Otherwise, test does not pass through.
CAN network LIN network test has two parts:
VCU test equipment receives how much voltage when can detect the high level of signal after CAN signal, LIN signal, when low level
How much voltage, needed from low level to high level how long, from high level to low level be how long, measure these data
Afterwards, compare with normal data, the judgement test met passes through, incongruent judgement test crash.
According to communication protocol, VCU test equipment is communicated to VCU by CAN communication and LIN, sends one group of data, VCU root
VCU test equipment will be sent back to by CAN communication, LIN communication again after data conversion according to Data Conversion Protocol, VCU test equipment is logical
It crosses to compare received data and whether meet Data Conversion Protocol and may determine that and tests whether to pass through, test and pass through if meeting；
Otherwise it tests and does not pass through.
In the step 3 of above-mentioned technical proposal, as shown in figure 3, VCU software writes with a brush dipped in Chinese ink and version verification successively includes
BootLoader functional test, UDS functional test, VCU software is write with a brush dipped in Chinese ink online, VCU software version verifies, VCU hardware version school
It tests, VCU sequence number detection, VCU produce date detection.
In above-mentioned technical proposal, as shown in figure 4, VCU power-on time test be by detection device issue IGN signal to
The time of first CAN message of VCU sending is received after VCU to VCU test equipment, the standard value of power-on time is in equipment debugging
When be fixed in VCU test equipment, the power-on time that more currently measures powers on whether the standard time is consistent with original, if according with
It closes then test to pass through, carries out follow-up process；If not meeting, power-on time test crash is exported, and prevents afterflow after VCU progress
Journey；
In above-mentioned technical proposal, as shown in fig. 6, electric time detection is that detection device closes wake source and IGN signal under VCU
The time that VCU dark current reaches standard value is arrived afterwards, lower electricity time standard value is fixed in VCU test equipment in equipment debugging,
Whether the lower electric time more currently tested is less than lower electric time standard value, if being less than or equal to lower electric time standard value, surveys
It pinged, and carried out follow-up process；If more than lower electric time standard value, the then lower electric time test failure of output, and VCU is prevented to carry out
Follow-up process.
In above-mentioned technical proposal, as shown in figure 5, VCU dark current be detection device close IGN (Ignition Switch,
Ignition switch) and wake-up signal after current value consumed by VCU, the standard value of dark current can be fixed to VCU in equipment debugging
In test equipment, whether the dark current more currently tested is less than the standard value of dark current, if being less than or equal to the mark of dark current
Quasi- value, then test passes through, and carries out follow-up process；If more than the standard value of dark current, then dark current test crash is exported, and prevent
VCU carries out follow-up process；
As shown in fig. 7, quiescent current test is that detection device sends dormancy instruction to current value measured after VCU, not
The standard value of dormancy electric current is fixed in VCU test equipment in equipment debugging, and whether the quiescent current more currently tested is less than
The standard value of quiescent current, if being less than or equal to the standard value of quiescent current, test passes through, and carries out follow-up process；If more than
The standard value of quiescent current then exports quiescent current test crash, and VCU is prevented to carry out follow-up process.
In above-mentioned technical proposal, as shown in figure 8, VCU running current test is that detection VCU issues CAN
Current value after (Controller Area Network, controller local area network) message, running current standard value can be
It is fixed in VCU test equipment when equipment debugging, it is normal whether the VCU running current value more currently tested is less than VCU
The current standard value of work, if being less than or equal to the current standard value that VCU is worked normally, test passes through, and carries out follow-up process；
If more than the current standard value that VCU is worked normally, then VCU running current test crash is exported, and it is subsequent to prevent VCU from carrying out
Process.
In above-mentioned technical proposal, as shown in figure 9, it is detection VCU in power-down state energy that the VCU, which powers on arousal function test,
No to be waken up source wake-up, VCU test equipment gives VCU normal power supply, is then shut off IGN and all wake sources, and VCU can enter at this time
Power-down state opens wake source, and VCU normal wakeup simultaneously issues CAN message, and VCU, which is powered on, to be waken up successfully, carries out follow-up process；If
VCU is unable to normal wakeup and issues CAN message, then power on wake-up failure, export dormancy awakening test crash, and prevent VCU into
Row follow-up process；
As shown in Figure 10, dormancy awakening functional test is whether detection VCU is waken up source wake-up, VCU in the dormant state
Test equipment closes wake source, and sends dormancy instruction to VCU, and VCU enters dormant state at this time, opens wake source, and VCU is normal
CAN message is waken up and issues, the success of VCU dormancy awakening carries out follow-up process；If VCU is unable to normal wakeup and issues CAN report
Text, then dormancy awakening fails, output dormancy awakening failure, and VCU is prevented to enter follow-up process.
In above-mentioned technical proposal, as shown in figure 11, the VCU motor driven test is whether equipment can by detecting VCU
According to correct output motor activation bit is instructed, motor drive signal, which is divided into MOTO+ signal, (indicates that motor driven voltage is just believed
Number) and MOTO- signal (indicating motor driven voltage negative signal), when agreement VCU test equipment issues rotating forward instruction, MOTO+ letter
Number output high level, MOTO- signal export low level；When arranging VCU test equipment sending toggling command, MOTO+ exports low electricity
Flat, MOTO- signal exports high level, and whether VCU test equipment is met instruction and wanted by detection MOTO+ signal and MOTO- signal
It asks, that is, can determine whether to pass through, required if meeting instruction, judge that motor driven is successfully tested, into follow-up process；If not being inconsistent
It closes instruction to require, then judges motor driven test crash, output motor test crash, and VCU is prevented to enter follow-up process；
As shown in figure 12, the ethernet communication test is to send a number by the ethernet port of VCU test equipment
The information in data packet is issued into VCU test equipment by CAN communication, is surveyed by parsing this data packet to VCU, VCU according to packet
Examination compares whether the data sent and received unanimously can determine whether communication is normal, if data are consistent, judges ether Netcom
Letter is normal；If inconsistent, judge ethernet communication exception, export ethernet communication test crash, and it is subsequent to prevent VCU from entering
Process.
In above-mentioned technical proposal, as shown in figure 13, the BootLoader functional test be by VCU test equipment from
Read the version number of Bootloader in VCU, and the Bootloader edition comparison in VCU test equipment, if version number is consistent,
The success of BootLoader Function detection is then judged, into follow-up process；If version number is inconsistent, BootLoader function is judged
Unsuccessful, output BootLoader Function detection failure is detected, and VCU is prevented to enter follow-up process；
As shown in figure 14, UDS functional test is the service parameter for reading UDS from VCU by VCU test equipment, with VCU
Service parameter in test equipment compares, if unanimously, the success of UDS Function detection is judged, into follow-up process；If inconsistent,
Then judge that UDS Function detection is unsuccessful, output UDS Function detection failure, and VCU is prevented to enter follow-up process；
As shown in figure 15, the verification of VCU software version and the verification of VCU hardware version are read from VCU by VCU test equipment
Software version number and hardware are taken, compared with software version number and hardware version numbers in VCU test equipment, if unanimously, judging
Software version and hardware version verify successfully, into follow-up process；If inconsistent, software version and hardware version verification are judged
It is unsuccessful, output software version and hardware version verification failure, and VCU is prevented to enter follow-up process.
In above-mentioned technical proposal, as shown in figure 16, the VCU sequence number detection is read from VCU by VCU test equipment
Sequence number is taken, compared with the sequence number in VCU test equipment, if unanimously, sequence number detection success is judged, into rear afterflow
Journey；If inconsistent, judge that sequence number detection is unsuccessful, output sequence number detection failure, and VCU is prevented to enter follow-up process；
As shown in figure 17, the VCU produce date detection be read from VCU the sequence date of manufacture by VCU test equipment, and
Compared with the date on the same day, if unanimously, judging that the date of manufacture is detected successfully, into follow-up process；If inconsistent, judge to produce
Date detection is unsuccessful, the detection failure of output date of manufacture, and VCU is prevented to enter follow-up process.
In above-mentioned technical proposal, VCU number high side voltage (9~16V) and low polygonal voltage (0~1V) input test are will to survey
Try obtained VCU number high side voltage and low polygonal voltage input value and preset digital high side voltage and low polygonal voltage input value into
Row compares, if unanimously, digital high side voltage and low polygonal voltage input test success, into follow-up process；If inconsistent, count
Word high side voltage and low polygonal voltage input test are unsuccessful, export VCU number high side voltage and low polygonal voltage input test failure,
And VCU is prevented to enter follow-up process.
In above-mentioned technical proposal, VCU number high side voltage and the output test of low polygonal voltage are will to test obtained VCU number
High side voltage and low polygonal voltage output valve are compared with preset digital high side voltage and low polygonal voltage output valve, if unanimously,
Then digital high side voltage and the output of low polygonal voltage are successfully tested, into follow-up process；If inconsistent, digital high side voltage and low
Polygonal voltage output test is unsuccessful, exports VCU number high side voltage and low polygonal voltage exports test crash, and VCU is prevented to enter
Follow-up process.
The content that this specification is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of VCU automatic test approach that integrated application layer software is write with a brush dipped in Chinese ink, which is characterized in that this method comprises the following steps:
Step 1: the test of VCU hardware capability is carried out to VCU, if all test items in the test of VCU hardware capability pass through,
2 are then entered step, tests unacceptable project if existed in the test of VCU hardware capability, output phase should test unacceptable
Test item information, and stop current VCU test testing at unacceptable project；
Step 2: corresponding VCU application layer software is write with a brush dipped in Chinese ink to VCU；
Step 3: the VCU progress VCU software for having write with a brush dipped in Chinese ink VCU application layer software being write with a brush dipped in Chinese ink and version verifies, if VCU software is write with a brush dipped in Chinese ink
And version verification passes through, then exports VCU and test automatically through information, if VCU software write with a brush dipped in Chinese ink and version verification in exist and verify
Unacceptable project is tested, then output phase answers the unacceptable test item information of check test, and is testing unacceptable project
Place stops current VCU test.
2. the VCU automatic test approach that integrated application layer software according to claim 1 is write with a brush dipped in Chinese ink, it is characterised in that: described
In step 1, carrying out the test of VCU hardware capability to VCU successively includes: that VCU is powered on and lower electric time test, VCU dark current and stopped
Dormancy testing current, the test of VCU running current, VCU power on wake-up and dormancy awakening functional test, VCU number high side voltage
With the test of low polygonal voltage input test, VCU resistance and voltage-type simulation input, VCU number high side voltage and the output of low polygonal voltage
Test, VCU motor driven test, VCU simulation output test, VCU probe power output test, VCU pulse signal input and
Output test, CAN network Lin network and ethernet communication test.
3. the VCU automatic test approach that integrated application layer software according to claim 1 is write with a brush dipped in Chinese ink, it is characterised in that: described
In step 3, VCU software is write with a brush dipped in Chinese ink and version verification successively exists including BootLoader functional test, UDS functional test, VCU software
Line writes with a brush dipped in Chinese ink, the verification of VCU software version, the verification of VCU hardware version, VCU sequence number detection, VCU produce date detection.
4. the VCU automatic test approach that integrated application layer software according to claim 2 is write with a brush dipped in Chinese ink, it is characterised in that: on VCU
Electric time test is to issue IGN signal by detection device to receive first CAN that VCU is issued to VCU test equipment to after VCU
The time of message, the standard value of power-on time are fixed in VCU test equipment in equipment debugging, and what is more currently measured powers on
Time powers on whether the standard time is consistent with original, tests and passes through if meeting, and carries out follow-up process；It is defeated if not meeting
Power-on time test crash out, and VCU is prevented to carry out follow-up process；
Electric time detection is that detection device is closed after wake source and IGN signal when reaching standard value to VCU dark current under VCU
Between, lower electricity time standard value is fixed in VCU test equipment in equipment debugging, and whether the lower electric time more currently tested is small
In lower electric time standard value, if being less than or equal to lower electric time standard value, test passes through, and carries out follow-up process；If more than under
Electric time standard value, then the lower electric time test failure of output, and VCU is prevented to carry out follow-up process.
5. the VCU automatic test approach that integrated application layer software according to claim 2 is write with a brush dipped in Chinese ink, it is characterised in that: VCU is dark
Electric current is that detection device closes current value consumed by VCU after IGN and wake-up signal, and the standard value of dark current can be in equipment debugging
When be fixed to VCU test equipment in, whether the dark current more currently tested is less than the standard value of dark current, if being less than or equal to
The standard value of dark current, then test passes through, and carries out follow-up process；If more than the standard value of dark current, then dark current test is exported
Failure, and VCU is prevented to carry out follow-up process；
Quiescent current test is that detection device sends dormancy instruction to current value measured after VCU, the standard value of quiescent current
It is fixed in VCU test equipment in equipment debugging, whether the quiescent current more currently tested is less than the standard of quiescent current
Value, if being less than or equal to the standard value of quiescent current, test passes through, and carries out follow-up process；If more than the standard of quiescent current
Value, then export quiescent current test crash, and VCU is prevented to carry out follow-up process.
6. the VCU automatic test approach that integrated application layer software according to claim 2 is write with a brush dipped in Chinese ink, it is characterised in that: described
The test of VCU running current is to detect VCU to issue the current value after CAN message, and running current standard value can be in equipment
It is fixed in VCU test equipment when debugging, whether the VCU running current value more currently tested is less than VCU normal work
Current standard value, if be less than or equal to VCU work normally current standard value, test pass through, carry out follow-up process；If big
In the current standard value that VCU is worked normally, then VCU running current test crash is exported, and prevents afterflow after VCU progress
Journey.
7. the VCU automatic test approach that integrated application layer software according to claim 2 is write with a brush dipped in Chinese ink, it is characterised in that: described
Can it be to detect VCU be waken up source wake-up in power-down state that VCU powers on arousal function test, and VCU test equipment is normally supplied to VCU
Electricity is then shut off IGN and all wake sources, and VCU can enter power-down state at this time, open wake source, and VCU normal wakeup simultaneously issues
CAN message, VCU, which is powered on, to be waken up successfully, carries out follow-up process；If VCU is unable to normal wakeup and issues CAN message, powers on and call out
It wakes up and fails, export dormancy awakening test crash, and VCU is prevented to carry out follow-up process；
Dormancy awakening functional test is whether detection VCU is waken up source wake-up in the dormant state, and VCU test equipment, which is closed, to be waken up
Source, and dormancy instruction is sent to VCU, VCU enters dormant state at this time, opens wake source, and VCU normal wakeup simultaneously issues CAN report
Text, VCU dormancy awakening success, carries out follow-up process；If VCU is unable to normal wakeup and issues CAN message, dormancy awakening is lost
It loses, output dormancy awakening failure, and VCU is prevented to enter follow-up process.
8. the VCU automatic test approach that integrated application layer software according to claim 2 is write with a brush dipped in Chinese ink, it is characterised in that: described
The test of VCU motor driven is whether equipment can be according to the correct output motor activation bit of instruction, motor driven by detection VCU
Signal is divided into MOTO+ signal and MOTO- signal, when agreement VCU test equipment issues rotating forward instruction, the high electricity of MOTO+ signal output
Flat, MOTO- signal exports low level；When arranging VCU test equipment sending toggling command, MOTO+ exports low level, MOTO- letter
Number output high level, VCU test equipment by detection MOTO+ signal and MOTO- signal whether meet instruction require, that is, can determine whether
Whether pass through, is required if meeting instruction, judge that motor driven is successfully tested, into follow-up process；If not meeting instruction to require,
Then judge motor driven test crash, output motor test crash, and VCU is prevented to enter follow-up process；
The ethernet communication test is to send a data packet by the ethernet port of VCU test equipment to lead to VCU, VCU
It crosses and parses this data packet, the information in data packet is issued into VCU test equipment by CAN communication, test and comparison sends and connects
Whether the data of receipts unanimously can determine whether communication is normal, if data are consistent, judges that ethernet communication is normal；If different
It causes, then judges ethernet communication exception, export ethernet communication test crash, and VCU is prevented to enter follow-up process.
9. the VCU automatic test approach that integrated application layer software according to claim 3 is write with a brush dipped in Chinese ink, it is characterised in that: described
BootLoader functional test is the version number for reading Bootloader from VCU by VCU test equipment, is set with VCU test
Bootloader edition comparison in standby judges the success of BootLoader Function detection, into rear afterflow if version number is consistent
Journey；If version number is inconsistent, judge that BootLoader Function detection is unsuccessful, output BootLoader Function detection failure,
And VCU is prevented to enter follow-up process；
UDS functional test is the service parameter for reading UDS from VCU by VCU test equipment, with the clothes in VCU test equipment
Business parameter compares, if unanimously, the success of UDS Function detection is judged, into follow-up process；If inconsistent, judge that UDS function is examined
Unsuccessful, output UDS Function detection failure is surveyed, and VCU is prevented to enter follow-up process；
VCU software version verification and VCU hardware version verification be is read from VCU by VCU test equipment software version number with
Hardware, compared with software version number and hardware version numbers in VCU test equipment, if unanimously, judging software version and hardware
Version verifies successfully, into follow-up process；If inconsistent, judge that software version and hardware version verification are unsuccessful, export soft
Part version and hardware version verification failure, and VCU is prevented to enter follow-up process.
10. the VCU automatic test approach that integrated application layer software according to claim 3 is write with a brush dipped in Chinese ink, it is characterised in that: described
VCU sequence number detection is that sequence number is read from VCU by VCU test equipment, compared with the sequence number in VCU test equipment,
If consistent, sequence number detection success is judged, into follow-up process；If inconsistent, judge that sequence number detection is unsuccessful, exports
Sequence number detection failure, and VCU is prevented to enter follow-up process；
The VCU, which produces date detection, to be read from VCU the sequence date of manufacture by VCU test equipment, and compared with the date on the same day,
If consistent, judge that the date of manufacture is detected successfully, into follow-up process；If inconsistent, judge that date of manufacture detection is unsuccessful,
Date of manufacture detection failure is exported, and VCU is prevented to enter follow-up process.
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Address after: 430056 No.5 workshop, No.339, zhuanyang Avenue, Wuhan Economic and Technological Development Zone, Hubei Province Patentee after: Zhixin Control System Co.,Ltd. Address before: 430056 No. 5 Workshop, 339 Chaoyang Avenue, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Patentee before: DONGFENG HANGSHENG (WUHAN) AUTOMOTIVE CONTROL SYSTEM Co.,Ltd. |