CN103631247B - A kind of life-span test system of the electric control product of automobile - Google Patents
A kind of life-span test system of the electric control product of automobile Download PDFInfo
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- CN103631247B CN103631247B CN201210298119.2A CN201210298119A CN103631247B CN 103631247 B CN103631247 B CN 103631247B CN 201210298119 A CN201210298119 A CN 201210298119A CN 103631247 B CN103631247 B CN 103631247B
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Abstract
The present invention proposes the life-span test system of the electric control product of a kind of automobile, including: master controller, master controller has CAN board；The multiple test cells being arranged in environment storehouse, multiple test cells are respectively provided with CAN communication interface, and multiple test cells are formed with master controller and electrically connect, and multiple test cell carries out communication by CAN communication interface and master controller；Power supply, power supply is used for powering.Wherein, master controller generates multiple addresses according to the quantity of test cell, and multiple addresses are distributed to multiple test cell, in order to master controller sends test instruction, receives the test result of multiple test cell and monitor the running status of multiple test cell to multiple test cells according to multiple addresses independently.Embodiments of the invention can realize the test to multiple test cells by a CAN board simultaneously, has the advantage that hardware cost is low, extensibility is strong.
Description
Technical field
The present invention relates to the electric control product technical field of measurement and test of automobile, particularly to the life test of the electric control product of a kind of automobile
System.
Background technology
Accelerating lifetime testing is a kind of method verifying the electric control product life-span at short notice, is operated in the highest by electric control product
Temperature and humidity environment under, accelerate each device aging of electric control product, find all kinds of defect.By using a temperature cycles
With a high humidity environment, increase the probability that realizes of electric control product, thus find electric control product device or manufacture at short notice
Defect.By using suitable temperature humidity cyclic curve, such as: test electric control product works 1000 hours can be corresponding actual
The service life of 8 years.
Owing to the time of life test stand one action is longer, and period will not descend electricity or termination, in order to improve efficiency and
Save resource, can take once to test the scheme of multiple electric control product.Traditional testing scheme is that each CAN board can only
Support the communication of two paths, and each electric control product will take a road or two-way CAN passage, say, that one
CAN board corresponding can only test one or two electric control product.Its mentality of designing is to need program control computer to install multiple CAN
Board, each CAN board one or two electric control product corresponding.The automatically controlled product of general life test stand one-shot measurement
Product number is not more than five, then need to install 3 ~ 5 CAN boards in program control computer.
But, the shortcoming of currently existing scheme is:
1, higher due to the cost of CAN board, buy substantial amounts of CAN board and can directly contribute the rising of testing cost.
2, designing CAN passage when, multiple passage in program control computer, have to be designed, more reserved passages so as with
Rear extension is used, and otherwise cannot realize life test stand and once test the demand of multiple electric control product.And once reserve
All CAN passages are the most occupied, and the extension for the CAN passage in later stage is also unusual inconvenience.
Summary of the invention
It is contemplated that at least solve one of above-mentioned technical problem.
To this end, it is an object of the invention to propose the life-span of a kind of electric control product saving hardware cost and the strong automobile of autgmentability
Test system.
To achieve these goals, The embodiment provides the life-span test system of the electric control product of a kind of automobile, bag
Including: master controller, described master controller has CAN board；The multiple test cells being arranged in environment storehouse, the plurality of
Test cell is respectively provided with CAN communication interface, and the plurality of test cell is formed with described master controller and electrically connects, and described many
Individual test cell carries out communication by CAN communication interface and described master controller；Power supply, described power supply is for described master control
Device processed, described environment storehouse and the plurality of test cell are powered.Wherein, described master controller is for according to described test cell
Quantity generate multiple addresses, and the plurality of address is distributed to the plurality of test cell, in order to described master
Controller sends test instruction, receives the plurality of survey to the plurality of test cell according to the plurality of address independently
Try the test result of unit and monitor the running status of the plurality of test cell.
It addition, the life-span test system of the electric control product of automobile according to the above embodiment of the present invention can also have following additional
Technical characteristic:
In some instances, the plurality of test cell is respectively provided with switch, and wherein, described master controller is only by CAN signal
The switch of the plurality of test cell of Site control, and after controlling the switch Guan Bi of the plurality of test cell, sequentially generate
Multiple described addresses, and by described CAN board, the plurality of address is distributed to the plurality of test cell.
In some instances, the plurality of test cell is carried out by described master controller according to CAN demarcation agreement CCP
Demarcate.
In some instances, described master controller is single to the plurality of test according to CAN diagnosing protocol based on KWP2000
Unit is monitored.
In some instances, the communication between described master controller and the plurality of test cell uses the mode of request-response.
In some instances, the plurality of test cell is respectively provided with memorizer, distributes to respective address with storage.
In some instances, described master controller is connected with described environment storehouse, with according to being pre-stored in the survey in described master controller
Temperature, the humidity in described environment storehouse are controlled by trial business.
In some instances, the test assignment that described master controller is additionally operable to according to being pre-stored in described master controller is controlled independently
System is applied to the voltage of each test cell.
In some instances, also including: load box, described load box has multiple electric interfaces, the plurality of test cell
Each be connected with an electric interfaces so that described master controller is formed by described load box and the plurality of test cell
Electrical connection.
In some instances, described master controller is tested corresponding by the electric interfaces of load box according to described test assignment
Unit is tested.
The master controller of the life-span test system of the electric control product of automobile according to embodiments of the present invention can pass through a CAN plate
Card realizes the testing and control to multiple test cells simultaneously, and such as, master controller can be by distributing to test cell communicatively
Location sends test instruction individually to test cell, and is fed back by the test mode of the independently received test cell of address
Etc. information such that it is able to efficiently reduce and test at present the CAN board required for multiple electric control product and CAN passage
Quantity.It addition, the life-span test system of the electric control product of this automobile has strong autgmentability, such as, the later stage is newly increased
Test cell, only need to increase quantity and the wire harness of test cell, and the test cell distributing to increase newly at master controller is corresponding
Just use can be tested, without newly-increased CAN board or CAN passage just it is achieved that thus big after address
Decrease greatly the hardware cost of system, save resource.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become bright from the following description
Aobvious, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will be apparent from from combining the accompanying drawings below description to embodiment
With easy to understand, wherein:
Fig. 1 is showing of the master controller distribution address of the life-span test system of the electric control product of the automobile of the embodiment of the present invention
It is intended to；
Fig. 2 is the structure chart of the life-span test system of the electric control product of the automobile of one embodiment of the invention；
Fig. 3 is the schematic diagram of the master controller of the life-span test system of the electric control product of one embodiment of the invention automobile；And
Fig. 4 is the flow process signal of the storage test data of the life-span test system of the electric control product of one embodiment of the invention automobile
Figure.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most identical
Or similar label represents same or similar element or has the element of same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ",
Orientation or the position relationship of the instruction such as " afterwards ", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark
The device or the element that show indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint phase
To importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " install ", " being connected ",
" connect " and should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, permissible
It it is the connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term exists with concrete condition
Concrete meaning in the present invention.
Life-span test system below in conjunction with the electric control product of accompanying drawing description automobile according to embodiments of the present invention.
With reference to Fig. 1, the life-span test system of the electric control product of the automobile of the embodiment of the present invention includes master controller 110, is arranged on
Multiple test cells 130 in environment storehouse 120 and power supply 140.Wherein:
Master controller 110 has CAN board, and CAN board is Communication Card based on CAN.Multiple test cells
130 are respectively provided with CAN communication interface, and multiple test cells 130 are formed with described master controller 110 and electrically connect, and multiple survey
Examination unit 130 carries out communication by CAN communication interface and master controller 110.Power supply 140 for master controller 110,
Environment storehouse 120 and multiple test cell 130 are powered.Wherein, master controller 110 generates for the quantity according to test cell
Multiple addresses, and multiple addresses are distributed to multiple test cell 130, in order to master controller 110 is according to multiple
Address independently to multiple test cells 130 send test instruction, receive multiple test cell 130 test result,
And monitor the running status of multiple test cell 130.
The master controller of the life-span test system of the electric control product of automobile according to embodiments of the present invention can pass through a CAN plate
Card realizes the testing and control to multiple test cells simultaneously, and such as, master controller can be by distributing to test cell communicatively
Location sends test instruction individually to test cell, and is fed back by the test mode of the independently received test cell of address
Etc. information such that it is able to efficiently reduce and test at present the CAN board required for multiple electric control product and CAN passage
Quantity.It addition, the life-span test system of the electric control product of this automobile has strong autgmentability, such as, the later stage is newly increased
Test cell, only need to increase quantity and the wire harness of test cell, and the test cell distributing to increase newly at master controller is corresponding
Just use can be tested, without newly-increased CAN board or CAN passage just it is achieved that thus big after address
Decrease greatly the hardware cost of system, save resource.
As it is shown in figure 1, multiple test cells 130 are respectively provided with switch KL15, wherein, master controller 110 is believed by CAN
The switch KL15 of number independently controlled multiple test cells 130, and close at the switch KL15 controlling multiple test cells 130
After conjunction, sequentially generate multiple address, and by CAN board, multiple addresses are distributed to multiple test cell 130.
Specifically, by the test program in master controller 110 arranging different number of test cell 130, such as:
5.Environment storehouse 120 and power supply 140 can be controlled by master controller 110, such as master controller 110 and environment storehouse
120 are connected, temperature, the humidity in environment storehouse 120 are controlled according to the test assignment being pre-stored in master controller 110,
It addition, master controller 110 also can be applied to each test list according to the test assignment prestored in the host controller is independently controlled
The voltage of unit 130.Specifically, master controller 110 controls, the temperature and humidity in monitoring of environmental storehouse 120, controls, monitors
The parameters such as the voltage of power supply 140, electric current.After the life-span test system power-up initializing of the electric control product of automobile, master control
Device 110 processed can demarcate agreement according to CAN, i.e. multiple test cells 130 are demarcated by CCP agreement, i.e. to logical
News address is allocated, and address is called for short CAN ID, and specifically, first the CAN board of master controller 110 will send
CAN signal gives the switch KL15(of first test cell in this example, as single in being followed successively by test in Fig. 1 from left to right
Unit's 1 to test cell 5) power on, after corresponding switch KL15 powers on successfully.Master controller 110 is by the survey prestored
Examination program will distribute first address CAN ID to first test cell 130, in this example, multiple test cells
130 are respectively provided with memorizer, distribute to respective address CAN ID with storage, will write corresponding survey by this CAN ID
In the memorizer of examination unit 130, after the CAN ID of first test cell 130 is assigned, master controller 110
CAN board powers on continuing transmission CAN signal to the switch KL15 of second test cell 130, second survey
The switch KL15 of examination unit 130 is upper after powering on successfully distributes second CAN ID to second test cell 130 and by this
CAN ID writes in the memorizer (memory block) of this test cell 130, thus, and the CAN ID of second test cell 130
It is assigned.By that analogy, after distributing CAN ID to all test cells 130, formal entrance treats life test state.
Life test state is treated in entrance, can be only by distributing to the CAN ID of each self-test unit 130 by master controller 110
The each test cell of Site control 130 is tested, such as, control input signal and the load of test cell 130 correspondence of correspondence
Being controlled, in this example, the communication between master controller 110 and multiple test cell 130 uses the side of request-response
Formula realizes testing requirement to test cell 130.
Further, multiple test cells 130 are entered by master controller 110 according to CAN diagnosing protocol based on KWP2000
Row monitors the communication CAN diagnosing protocol based on KWP2000 alternately between multiple test cells 130 and master controller 110,
I.e. master controller 110 connects CAN by CAN board, and CAN is connected with multiple test cells, thus realizes
Setting to the CAN ID connecting the multiple test cell of CAN 130.Master controller 110 is by CAN ID independently
Control different test cells 130 and carry out in Lifetest procedure, can be according to the test program being pre-stored in master controller 110
The operating mode set, cyclically controls multiple test cell 130 and exports, and monitor input state information.In this example, as
Really master controller 110 detects that test cell 130 output is unsatisfactory for requirement, then indicate error message, and resolve master
The command information (test instruction) that controller 110 sends, in order to carry out life test according to corresponding test program.The present invention
The life-span test system of the electric control product of the automobile of embodiment is according to the CAN command information of master controller 110, it is judged that multiple surveys
Whether examination unit 130 enters is treated life test state, in order to test according to corresponding life test program.
As in figure 2 it is shown, the life-span test system of the electric control product of the automobile of the embodiment of the present invention includes load box 150, load
Case 150 has multiple electric interfaces (not shown), and each of multiple test cells 130 is connected with an electric interfaces
So that master controller 110 is electrically connected with the formation of multiple test cells 130 by load box 150.In this example, main control
Corresponding test cell is tested by the electric interfaces of load box 150 by device 110 according to test assignment.Such as, master control
The CAN board of device 110 processed is connected by CAN and load box 150, has electric interfaces in load box 150, multiple
One of electric interfaces is connected with a test cell 130, and other can be controlled by this test cell 130 with other
Multiple loads be connected, thus can control and monitor the electrical load characteristic of this test cell 130.
As it is shown on figure 3, in one embodiment of the invention, master controller 110 has observation interface, in order to multiple
Test cell 130 is controlled the interface monitoring with GUI.Specifically, master controller 110 is planned test according to test
Circulation is controlled, and CAN data are monitored by gui interface, monitors whether CAN data have exception while communication.
If monitoring is not abnormal, collecting test data, data output is processed, and outside test data being stored in accordingly
Enclose in storage device, in USB flash disk, SD card or hard disk.
As shown in Figure 4, it is shown that the master controller 110 of the embodiment of the present invention carries out address distribution to test cell 130
Step, wherein, in Fig. 4, Count represents the label surveying unit 130, and from 1 froms the beginning of, Number represents and surveys the individual of unit
Number.Specifically, system initialization, Count is equal to 1, represents first test cell 130, checks corresponding switch KL15
Whether power on successfully, if KL15 successfully powers on, give first test cell 130 according to CCP agreement distribution CAN ID,
CAN ID is allocated successfully and is stored by CAN ID in the memorizer of this test cell 130.It is allocated successively, until institute
Some test cells 130 enter after being all assigned with CAN ID and treat life test state.Test cell 130 passes through KWP2000
CAN diagnosing protocol and master controller 110 carry out communication.
According to embodiments of the invention, the testing and control to multiple test cells, example can be realized by a CAN board simultaneously
As, master controller can send test instruction individually by distributing to the address of test cell to test cell, and passes through
The information such as the test mode feedback of the independently received test cell of address such that it is able to efficiently reduce test at present multiple
CAN board required for electric control product and the quantity of CAN passage.It addition, the life test of the electric control product of this automobile
System has strong autgmentability, such as, newly increases test cell for the later stage, only need to increase quantity and the wire harness of test cell,
And after the corresponding address of test cell increased newly distributed to by master controller, just can test use, without newly-increased
CAN board or CAN passage just it is achieved that thus greatly reduce the hardware cost of system, save resource.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not necessarily
Refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: without departing from
These embodiments can be carried out multiple change in the case of the principle of the present invention and objective, revise, replace and modification, this
Bright scope is limited by claim and equivalent thereof.
Claims (9)
1. the life-span test system of the electric control product of an automobile, it is characterised in that including:
Master controller, described master controller has CAN board；
The multiple test cells being arranged in environment storehouse, the plurality of test cell is respectively provided with CAN communication interface, the plurality of
Test cell is formed with described master controller and electrically connects, and the plurality of test cell is by CAN communication interface and described master control
Device processed carries out communication, and the plurality of test cell has memorizer, distributes to respective address with storage；
Power supply, described power supply is for powering to described master controller, described environment storehouse and the plurality of test cell；
Wherein, described master controller generates multiple addresses for the quantity according to described test cell, and by the plurality of
Address distributes to the plurality of test cell, in order to described master controller according to the plurality of address independently to institute
State multiple test cell to send test instruction, receive the test result of the plurality of test cell and monitor the plurality of survey
The running status of examination unit.
The life-span test system of the electric control product of automobile the most according to claim 1, it is characterised in that the plurality of survey
Examination unit is respectively provided with switch, and wherein, described master controller is opened by the independently controlled the plurality of test cell of CAN signal
Close, and after controlling the switch Guan Bi of the plurality of test cell, sequentially generate multiple described address, and by described
The plurality of address is distributed to the plurality of test cell by CAN board.
The life-span test system of the electric control product of automobile the most according to claim 1, it is characterised in that described main control
Device is demarcated agreement CCP according to CAN and is demarcated the plurality of test cell.
The life-span test system of the electric control product of automobile the most according to claim 1, it is characterised in that described main control
The plurality of test cell is monitored by device according to CAN diagnosing protocol based on KWP2000.
The life-span test system of the electric control product of automobile the most according to claim 1, it is characterised in that described main control
Communication between device and the plurality of test cell uses the mode of request-response.
The life-span test system of the electric control product of automobile the most according to claim 1, it is characterised in that described main control
Device is connected with described environment storehouse, with according to the test assignment that is pre-stored in described master controller to the temperature in described environment storehouse, wet
Degree is controlled.
The life-span test system of the electric control product of automobile the most according to claim 1, it is characterised in that described main control
Device is additionally operable to according to the independently controlled voltage being applied to each test cell of test assignment being pre-stored in described master controller.
8. according to the life-span test system of the electric control product of the automobile described in any one of claim 1-7, it is characterised in that also
Including:
Load box, described load box has multiple electric interfaces, each of the plurality of test cell and an electric interfaces
It is connected so that described master controller is electrically connected with the formation of the plurality of test cell by described load box.
The life-span test system of the electric control product of automobile the most according to claim 8, it is characterised in that described main control
Corresponding test cell is surveyed by the electric interfaces of load box by device according to the test assignment being pre-stored in described master controller
Examination.
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| CN201210298119.2A CN103631247B (en) | 2012-08-20 | 2012-08-20 | A kind of life-span test system of the electric control product of automobile |
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| CN201210298119.2A CN103631247B (en) | 2012-08-20 | 2012-08-20 | A kind of life-span test system of the electric control product of automobile |
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Families Citing this family (7)
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| CN104834301B (en) * | 2014-11-28 | 2018-02-23 | 北汽福田汽车股份有限公司 | The life testing method and system of automobile electronic controller |
| DE102015214376A1 (en) * | 2015-07-29 | 2017-02-02 | Robert Bosch Gmbh | Method and device for on-board diagnostics in a control device with a hypervisor and at least one operated under the hypervisor guest system |
| CN105553771A (en) * | 2015-12-16 | 2016-05-04 | 国网北京市电力公司 | Message detection method and apparatus |
| CN106441940A (en) * | 2016-11-17 | 2017-02-22 | 上海保旭机电工程有限公司 | An ECU endurance test board with a general load box |
| CN106647694A (en) * | 2016-11-17 | 2017-05-10 | 控福（上海）智能科技有限公司 | Script loading method generally used for ECU durability test stand load and script loading device thereof |
| CN112073259A (en) * | 2020-08-11 | 2020-12-11 | 上海麦腾物联网技术有限公司 | Communication test method for batch Can controllers |
| CN114384499A (en) * | 2022-01-17 | 2022-04-22 | 惠州越登智能科技有限公司 | Multi-radar running state real-time monitoring system and monitoring method thereof |
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