CN107678904A - A kind of line traffic control gear control unit scaling method and system - Google Patents
A kind of line traffic control gear control unit scaling method and system Download PDFInfo
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- CN107678904A CN107678904A CN201710943661.1A CN201710943661A CN107678904A CN 107678904 A CN107678904 A CN 107678904A CN 201710943661 A CN201710943661 A CN 201710943661A CN 107678904 A CN107678904 A CN 107678904A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- 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
- G06F11/26—Functional testing
- G06F11/273—Tester hardware, i.e. output processing circuits
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- 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
- G06F11/26—Functional testing
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Abstract
The invention discloses a kind of line traffic control gear control unit scaling method, applied to bus test developing instrument, this method comprises the following steps：The default test program of operation, to make programmable power supply send test and excitation signal to line traffic control gear control unit to be measured by input and output control box, there is gear parameter to be calibrated in the control program in line traffic control gear control unit to be measured；By input and output control box, receive line traffic control gear control unit to be measured by control program for pumping signal and the test response signal that exports；According to test response signal, gear parameter to be calibrated is demarcated.The technical scheme provided using the embodiment of the present invention, it is line traffic control gear control unit input test pumping signal to be measured using bus test developing instrument, the demarcation of line traffic control gear control unit is carried out, the accuracy and efficiency of line traffic control gear control unit demarcation gear parameter can be improved.The invention also discloses a kind of line traffic control gear control unit calibration system, has corresponding technique effect.
Description
Technical field
The present invention relates to technical field of intelligent traffic, more particularly to a kind of line traffic control gear control unit scaling method and is
System.
Background technology
With automobile industry electronization, intellectuality, line traffic control gear progressively substitutes tradition machinery formula gear.
In recent years, common line traffic control gear has button, knob and rod-pulling type etc..With the application of line traffic control gear, letter
Single switch control can not meet line traffic control gear control logic complicated all the more, then, introduce independent control unit
Line traffic control gear is controlled.For line traffic control gear control unit, why it copes with the complicated control of line traffic control gear
Logic processed, it is because having control program in line traffic control gear control unit.And the gear parameter calibration in control program must be more accurate
Really, the work of line traffic control gear control unit is more stable, and the performance of the transmission system of automobile is more stable.
It is existing, the gear parameter calibration mode of line traffic control gear control unit, it is constantly to be repeated to grasp by tester mostly
Make line traffic control gear, give line traffic control gear control unit input signal, then analyze and process the output of line traffic control gear control unit
Response signal, further demarcate gear parameter.This demarcation mode, line traffic control gear is manipulated by tester, may produced big
The test error of amount, cause calibrating parameters inaccurate, and the problems such as efficiency is low.
In summary, the problems such as how efficiently solving the demarcation of line traffic control gear control unit, is current people in the art
Member is badly in need of the technical problem solved.
The content of the invention
It is an object of the invention to provide a kind of line traffic control gear control unit scaling method and system, to improve demarcation line traffic control row
Keep off the accuracy and efficiency of the gear parameter of control unit.
In order to solve the above technical problems, the present invention provides following technical scheme：
A kind of line traffic control gear control unit scaling method, applied to bus test developing instrument, the bus test exploitation
Instrument is connected with input and output control box, and the input and output control box also controls with programmable power supply, line traffic control gear to be measured respectively
Unit is connected, and methods described includes：
The default test program of operation, believed with making the programmable power supply send test and excitation by the input and output control box
Number give the line traffic control gear control unit to be measured, there are shelves to be calibrated in the control program in the line traffic control gear control unit to be measured
Position parameter；
By the input and output control box, receive the line traffic control gear control unit to be measured and pass through the control program pin
The test response signal exported to the pumping signal；
According to the test response signal, the gear parameter to be calibrated is demarcated.
Preferably, it is described according to the test response signal, the gear parameter to be calibrated is demarcated, including：
When the test response signal is less than default error threshold with the difference of the corresponding simulated response signal being obtained ahead of time
During value, current gear parameter value corresponding to the gear parameter to be calibrated is defined as target gear parameter value.
Preferably, in addition to：
When the difference of the test response signal and the simulated response signal is more than or equal to the default error threshold
When, the current gear parameter value is changed, repeats the operation of the default test program of the operation.
Preferably, the simulated response signal is marked in system for computer simulated environment, to run default emulation in advance
After determining program, the signal of acquisition.
Preferably, after being demarcated to the gear parameter to be calibrated, gone back according to the test response signal described
Including：
The prompt message of demarcation is completed in output.
A kind of line traffic control gear control unit calibration system, including：
Bus test developing instrument, programmable power supply, input and output control box, line traffic control gear control unit to be measured, it is described defeated
Enter output control box respectively with the bus test developing instrument, the line traffic control gear control unit to be measured and the programmable power supply
It is connected；
The bus test developing instrument, for running default test program, to be made by the input and output control box
It is single to the line traffic control gear control unit to be measured, the line traffic control gear control to be measured that the programmable power supply sends test and excitation signal
There is gear parameter to be calibrated in control program in member；By the input and output control box, the line traffic control gear to be measured is received
Control unit is by the control program for the pumping signal and the test response signal that exports；Responded according to the test
Signal, the gear parameter to be calibrated is demarcated.
Preferably, the bus test developing instrument, is specifically used for：
When the test response signal is less than default error threshold with the difference of the corresponding simulated response signal being obtained ahead of time
During value, current gear parameter value corresponding to the gear parameter to be calibrated is defined as target gear parameter value.
Preferably, the bus test developing instrument, is additionally operable to：
When the difference of the test response signal and the simulated response signal is more than or equal to the default error threshold
When, the current gear parameter value is changed, repeats the operation of the default test program of the operation.
Preferably, the simulated response signal is marked in system for computer simulated environment, to run default emulation in advance
After determining program, the signal of acquisition.
Preferably, the bus test developing instrument, is additionally operable to：
Described according to the test response signal, after being demarcated to the gear parameter to be calibrated, output is completed
The prompt message of demarcation.
The technical scheme provided using the embodiment of the present invention, the default test program of bus test developing instrument operation, with
Programmable power supply is set to send test and excitation signal to line traffic control gear control unit to be measured, line traffic control row to be measured by input and output control box
There is gear parameter to be calibrated in control program in gear control unit；By input and output control box, line traffic control gear to be measured is received
Control unit is by control program for pumping signal and the test response signal that exports；According to test response signal, mark is treated
Determine gear parameter to be demarcated.It is line traffic control gear control unit input test to be measured excitation letter using bus test developing instrument
Number, carry out the demarcation of line traffic control gear control unit.Without adjusting gear gear manually, line traffic control gear control unit mark can be improved
Determine the accuracy and efficiency of gear parameter.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of implementing procedure figure of line traffic control gear control unit scaling method in the embodiment of the present invention；
Fig. 2 is a kind of structural representation of line traffic control gear control unit calibration system in the embodiment of the present invention.
Embodiment
The core of the present invention is to provide a kind of line traffic control gear control unit scaling method, and work is developed applied to bus test
Tool, this method comprise the following steps：The default test program of operation, to make programmable power supply send test by input and output control box
Pumping signal gives line traffic control gear control unit to be measured, has gear to be calibrated in the control program in line traffic control gear control unit to be measured
Parameter；By input and output control box, receive line traffic control gear control unit to be measured by control program for pumping signal and defeated
The test response signal gone out；According to test response signal, gear parameter to be calibrated is demarcated.Work is developed using bus test
Have for line traffic control gear control unit input test pumping signal to be measured, the demarcation of progress line traffic control gear control unit.Without manually
Gear gear is adjusted, the accuracy and efficiency of line traffic control gear control unit demarcation gear parameter can be improved.
It should be noted that embodiment provided by the invention is applied to bus test developing instrument.Wherein, bus test is opened
The concrete application scene of hair instrument can be a kind of line traffic control gear control unit calibration system provided by the invention.Specifically, should
System includes：Bus test developing instrument, programmable power supply, input and output control box, line traffic control gear control unit to be measured, input are defeated
Go out control box respectively with bus test developing instrument, line traffic control gear control unit to be measured and programmable power supply to be connected, programmable power supply point
Lian Jie not input and output control box and bus test developing instrument.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is a kind of flow chart of line traffic control gear control unit scaling method in the embodiment of the present invention, should
Method comprises the following steps：
S101, the default test program of operation, to make programmable power supply send test and excitation signal by input and output control box
To line traffic control gear control unit to be measured.
Wherein, there is gear parameter to be calibrated in the control program in line traffic control gear control unit to be measured.
In the present embodiment, programmable power supply, the I/O of bus test developing instrument is connected by input and output control box
(Input/Output, input and output) mouth, as test resource, it is possible to achieve programmable power supply is generalized machine control, can be certainly
It is dynamic to perform power supply dependence test item, that is, controlled by bus test developing instrument.
Input and output control box, the I/O mouths of bus test developing instrument are connected, in the inside of input and output control box, led to
Cross relay connection and control each pin terminals of line traffic control gear control unit to be measured, input and output control box line programmable power supply comes
Powered to line traffic control gear control unit and relay.In addition, line traffic control gear control unit to be measured passes through input and output control box
CAN (Controller Area Network, controller local area network) bus is connected with bus test developing instrument, inputted
Also reserved dependence test end in output control box, that is, expansion interface, extend so that the test equipments such as oscillograph connect.Specifically
, inside input and output control box, control line traffic control gear control unit rigid line to input by control box internal relay, relay
Device end is controlled by the I/O mouths of bus test developing instrument, and is connected programmable power supply and powered to ECU and relay.
Bus test developing instrument, receive line traffic control gear to be measured by built-in CAN card transceiver accesses and control list
First bus communication, and support numeral and simulation I/O mouth controls, connection computer and input and output control box.Bus test is developed
Instrument is connected with input and output control box, and input and output control box is connected with programmable power supply and line traffic control gear control unit to be measured.
It should be noted that the default test program in bus test developing instrument, can call bus test to develop work
The I/O mouths of tool, power supply and hardware switch are provided for line traffic control gear control unit, carries out pulse width modulation (Pulse Width
Modulation, PWM), automatic switchover line traffic control gear gear switch time and order.In the other embodiment of this hair, preset
Test program can also carry out automatic simulation in system emulation environment and export final calibration result etc..
Default test program is run in bus test developing instrument, then produces gear manipulation signal.Input and output control
Box processed makes programmable power supply provide test and excitation signal and controls list to line traffic control gear to be measured according to the gear position operation signal received
Member.Wherein, there is gear parameter to be calibrated in the control program in line traffic control gear control unit, i.e. the parameter value for gear is to treat
Demarcation.When carrying out gear parameter calibration, at least one gear parameter to be calibrated, that is to say, that can demarcate every time only
For same gear parameter to be calibrated, or for multiple gear parameters to be calibrated.
S102, by input and output control box, receive line traffic control gear control unit to be measured by control program for excitation
Signal and the test response signal exported.
Wherein, test response signal is the response signal that control program is directed to pumping signal.
In the present embodiment, test response signal is the control program in line traffic control gear control unit to be measured, for test
The response signal of pumping signal.It should be noted that when the parameter value of the gear parameter to be calibrated in control program changes
When, line traffic control speed control unit to be measured can also produce change for the test response signal of corresponding test and excitation signal output.
After line traffic control gear control unit receives test and excitation signal, according to control program, it can export and swash for test
Encourage the test response signal of signal.For example, when test and excitation signal is parking gear signal, line traffic control gear control unit to be measured
Parking gear signal can be directed to, exports the response signal that the transmission system of automobile can be made to reach parking gear requirement.The survey
Response signal is tried by input and output control box, can be received by bus test developing instrument.
After receiving test response signal, step S103 operation can be performed.
S103, according to test response signal, gear parameter to be calibrated is demarcated.
Bus test developing instrument can be demarcated according to test response signal to gear parameter to be calibrated.Also
It is to say, is referred to test response signal, gear parameter value corresponding to gear parameter to be calibrated is determined.
In one embodiment of the invention, step S103 may comprise steps of：
When test response signal is less than default error threshold with the difference of the corresponding simulated response signal being obtained ahead of time,
Current gear parameter value corresponding to gear parameter to be calibrated is defined as target gear parameter value.
In the present embodiment, multiple simulated response signals, and each simulated response signal and gear can be obtained ahead of time
The corresponding relation of operation signal.Specifically, simulated response signal can be that emulation is obtained or is directed in a computer
The line traffic control gear control unit demarcated in actual use, exports for the gear pumping signal of different line traffic control gears
Response signal, the embodiment of the present invention are not limited the specific acquisition pattern of simulated response signal.
First in the emulation signal being obtained ahead of time, it is determined that simulated response signal corresponding with test response signal.Specifically
, can be identical with which kind of gear position operation signal according to test and excitation signal, so as to according to simulated response signal and gear position operation
Corresponding relation between signal, determine simulated response signal.Then, using the signal difference calculation of routine, test is calculated
The difference of response signal and corresponding simulated response signal, due to being the conventional signal difference calculation used, the present invention
Embodiment will not be repeated here.The difference being calculated is compared with default error threshold, wherein default error threshold
Concrete numerical value size can predefine, can also be determined and adjust according to actual conditions, the embodiment of the present invention is to this
Do not limit., can will be current corresponding to gear parameter to be calibrated if the difference being calculated is less than default error threshold
Gear parameter value is defined as target gear parameter value, that is, completes the demarcation of gear parameter to be calibrated.
In one embodiment of the invention, step S103 may comprise steps of：
When test response signal and the difference of simulated response signal are more than or equal to default error threshold, current shelves are changed
Position parameter value, repeat the operation of the default test program of operation.
Difference of the test response signal with the corresponding simulated response signal being obtained ahead of time is calculated, when the difference being calculated is big
When default error threshold, current gear parameter value is changed, that is, changes gear parameter to be calibrated.
In one embodiment of the invention, when changing current gear parameter, the difference for being referred to be calculated is entered
The corresponding modification of row.Such as, when difference is less than parameter preset modification threshold value, gear parameter value comparison operators to be calibrated now is shown
Standardization, trickle adjustment can be done when changing current gear parameter value；Opposite, when difference is more than or equal in advance
When setting parameter changes threshold value, show gear parameter value to be calibrated now from standard also farther out, can be in modification current gear ginseng
Larger adjustment is done during numerical value.
In one embodiment of the invention, simulated response signal is the fortune in advance in system for computer simulated environment
After the default emulation calibrating procedure of row, the signal of acquisition.Computer can be entered with bus test developing instrument by USB connected modes
Row interaction.
Default simulated response signal can be to run default emulation demarcation journey in system for computer simulated environment in advance
The emulation signal obtained after sequence.Wherein, it can be the default test in bus test developing instrument to preset emulation calibrating procedure
The combination of program and the control program in line traffic control gear control unit to be measured, also just say, in system for computer simulated environment
In, the whole process that the gear parameter to be calibrated of survey line control gear control unit is demarcated can be treated with analogue simulation, and
Corresponding signal, such as test response signal and test response signal modulating signal.Certainly, in other embodiments of the invention, emulate
Response signal can while treating survey line control gear control unit to be demarcated, be transported in system for computer simulated environment
Obtained after row emulation calibrating procedure.
In one embodiment of the invention, according to test response signal, gear parameter to be calibrated is carried out demarcating it
Afterwards, the prompt message for completing demarcation can also be exported.
After the demarcation to gear parameter to be calibrated is completed, completion demarcation can be exported on bus test developing instrument
Prompt message.Specifically, bus test developing instrument can also be according to the communication matrix of line traffic control gear control unit to be measured, i.e.,
Communicated I/O mouths, and real vehicle bus communication environment is established in emulation, is simulated and is monitored line traffic control gear control unit input and output to be measured in real time
Signal.Tester is facilitated to understand current test case.
The method provided using the embodiment of the present invention, the default test program of bus test developing instrument operation, to pass through
Input and output control box makes programmable power supply send test and excitation signal to line traffic control gear control unit to be measured, line traffic control gear control to be measured
There is gear parameter to be calibrated in control program in unit processed；By input and output control box, line traffic control gear control to be measured is received
Unit is by control program for pumping signal and the test response signal that exports；According to test response signal, to shelves to be calibrated
Position parameter is demarcated.It is line traffic control gear control unit input test pumping signal to be measured using bus test developing instrument, enters
The demarcation of line control gear control unit.Without adjusting gear gear manually, line traffic control gear control unit demarcation shelves can be improved
The accuracy and efficiency of position parameter.
Corresponding to above method embodiment, the embodiment of the present invention additionally provides a kind of line traffic control gear control unit demarcation system
System, line traffic control gear control unit calibration system described below can phase with above-described line traffic control gear control unit scaling method
Mutually to should refer to.
Shown in Figure 2, the device includes following equipment：
Bus test developing instrument 201, programmable power supply 202, input and output control box 203, line traffic control gear to be measured control are single
Member 204, input and output control box 203 respectively with bus test developing instrument 201, line traffic control gear control unit 204 to be measured and journey
Power supply 202 is controlled to be connected；
Bus test developing instrument 201, default test program is run, to make program-controlled electric by input and output control box 203
Source 202 sends test and excitation signal to line traffic control gear control unit 204 to be measured, the control in line traffic control gear control unit 204 to be measured
There is gear parameter to be calibrated in processing procedure sequence；By input and output control box 203, it is logical to receive line traffic control gear control unit 204 to be measured
Cross the test response signal that control program exports for pumping signal；According to test response signal, to gear parameter to be calibrated
Demarcated.
The system provided using the embodiment of the present invention, the default test program of bus test developing instrument operation, to pass through
Input and output control box makes programmable power supply send test and excitation signal to line traffic control gear control unit to be measured, line traffic control gear control to be measured
There is gear parameter to be calibrated in control program in unit processed；By input and output control box, line traffic control gear control to be measured is received
Unit is by control program for pumping signal and the test response signal that exports；According to test response signal, to shelves to be calibrated
Position parameter is demarcated.It is line traffic control gear control unit input test pumping signal to be measured using bus test developing instrument, enters
The demarcation of line control gear control unit.Without adjusting gear gear manually, line traffic control gear control unit demarcation shelves can be improved
The accuracy and efficiency of position parameter.
In a kind of embodiment of the present invention, bus test developing instrument 201, it is specifically used for：
When test response signal is less than default error threshold with the difference of the corresponding simulated response signal being obtained ahead of time,
Current gear parameter value corresponding to gear parameter to be calibrated is defined as target gear parameter value.
In a kind of embodiment of the present invention, bus test developing instrument 201, it is additionally operable to：
When test response signal and the difference of simulated response signal are more than or equal to default error threshold, current shelves are changed
Position parameter value, repeat the operation of the default test program of operation.
In a kind of embodiment of the present invention, simulated response signal is in advance in system for computer simulated environment
In, after running default emulation calibrating procedure, the signal of acquisition.
In a kind of embodiment of the present invention, bus test developing instrument 201, it is additionally operable to：
According to test response signal, after being demarcated to gear parameter to be calibrated, the prompting letter of demarcation is completed in output
Breath.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be with it is other
The difference of embodiment, between each embodiment same or similar part mutually referring to.For dress disclosed in embodiment
For putting, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part
Explanation.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help and understand technical scheme and its core concept.It should be pointed out that for the common of the art
For technical staff, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these
Improve and modification is also fallen into the protection domain of the claims in the present invention.
Claims (10)
- A kind of 1. line traffic control gear control unit scaling method, it is characterised in that applied to bus test developing instrument, the bus Test development instrument is connected with input and output control box, the input and output control box also respectively with programmable power supply, line traffic control to be measured Gear control unit is connected, and methods described includes：The default test program of operation, with by the input and output control box make the programmable power supply send test and excitation signal to The line traffic control gear control unit to be measured, there is gear to be calibrated to join in the control program in the line traffic control gear control unit to be measured Number；By the input and output control box, receive the line traffic control gear control unit to be measured and institute is directed to by the control program The test response signal stated pumping signal and exported；According to the test response signal, the gear parameter to be calibrated is demarcated.
- 2. according to the method for claim 1, it is characterised in that it is described according to the test response signal, wait to mark to described Determine gear parameter to be demarcated, including：When the test response signal is less than default error threshold with the difference of the corresponding simulated response signal being obtained ahead of time, Current gear parameter value corresponding to the gear parameter to be calibrated is defined as target gear parameter value.
- 3. according to the method for claim 2, it is characterised in that also include：When the difference of the test response signal and the simulated response signal is more than or equal to the default error threshold, repair Change the current gear parameter value, repeat the operation of the default test program of the operation.
- 4. according to the method in claim 2 or 3, it is characterised in that the simulated response signal is in advance in computer In system emulation environment, after running default emulation calibrating procedure, the signal of acquisition.
- 5. the method according to any one of claims 1 to 3, it is characterised in that responded described according to the test Signal, after being demarcated to the gear parameter to be calibrated, in addition to：The prompt message of demarcation is completed in output.
- A kind of 6. line traffic control gear control unit calibration system, it is characterised in that including：Bus test developing instrument, programmable power supply, input and output control box, line traffic control gear control unit to be measured, the input are defeated Go out control box respectively with the bus test developing instrument, the line traffic control gear control unit to be measured and the programmable power supply phase Even；The bus test developing instrument, it is described to be made by the input and output control box for running default test program Programmable power supply sends test and excitation signal to the line traffic control gear control unit to be measured, in the line traffic control gear control unit to be measured Control program in have gear parameter to be calibrated；By the input and output control box, the line traffic control gear control to be measured is received Unit is by the control program for the pumping signal and the test response signal that exports；According to the test response letter Number, the gear parameter to be calibrated is demarcated.
- 7. system according to claim 6, it is characterised in that the bus test developing instrument, be specifically used for：When the test response signal is less than default error threshold with the difference of the corresponding simulated response signal being obtained ahead of time, Current gear parameter value corresponding to the gear parameter to be calibrated is defined as target gear parameter value.
- 8. system according to claim 7, it is characterised in that the bus test developing instrument, be additionally operable to：When the difference of the test response signal and the simulated response signal is more than or equal to the default error threshold, repair Change the current gear parameter value, repeat the operation of the default test program of the operation.
- 9. the system according to claim 7 or 8, it is characterised in that the simulated response signal is in advance in computer In system emulation environment, after running default emulation calibrating procedure, the signal of acquisition.
- 10. the system according to any one of claim 6 to 8, it is characterised in that the bus test developing instrument, It is additionally operable to：Described according to the test response signal, after being demarcated to the gear parameter to be calibrated, demarcation is completed in output Prompt message.
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