CN103592938B - Based on car audio controller output circuit production test system and method - Google Patents
Based on car audio controller output circuit production test system and method Download PDFInfo
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- CN103592938B CN103592938B CN201310577858.XA CN201310577858A CN103592938B CN 103592938 B CN103592938 B CN 103592938B CN 201310577858 A CN201310577858 A CN 201310577858A CN 103592938 B CN103592938 B CN 103592938B
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Abstract
Present invention is disclosed a kind of be based on car body controller output circuit production test system, the system includes upper computer module, BCM modules, power module and power resistor, the control signal of the upper computer module accesses BCM modules, the external power resistor of BCM modules, it is characterised in that：The upper computer module includes data collecting card and control centre, the BCM modules include ECU and driving signal output circuit, ECU control signals are transported to driving signal output circuit, two power resistors are connected to the driving signal output circuit interface in a series arrangement, data collecting card is connected to the connection midpoint of two power resistors, and send collection signal to control centre, realize the correctness of output voltage is gathered on the premise of load is connected to, test system can be totally independent of BCM actual logics function and carry out production test.
Description
Technical field
The invention belongs to technical field of automotive electronics, especially it is a kind of be based on BCM output circuit production test systems and and
Its method.
Background technology
With the development of automotive electronic technology, increasingly popularization of the electronic-controlled installation used in Hyundai Motor.Vehicle body
Controller（Hereinafter referred to as BCM）It is one of important electronic control device for vehicle, including central door lock control, power windows control
System, anti-theft and alarm, signal light control, air bag control, defrosting control, wiper control, boot control, radar for backing car
Control etc..Traditional production test method, is that the various functions output interface of BCM is connected load（Motor, bulb or power electricity
Resistance etc.）, condition is correctly entered by being supplied to BCM, the output circuit of BCM will be according to actual logic function operation.Test system
Output voltage is directly gathered by D/I capture cards, is compared with standard value Jing after industrial computer analyzing and processing, output result.No
Foot part, firstly, since BCM high-side drivers output voltage is generally more than 9V, but the threshold voltage of D/I capture card collection voltages
About 2V, i.e. approximately more than 2V are then considered high level, if BCM hinders voltage of the output about between 2V～9V, both voltage for some reason
Difference can cause the test result of test system to judge by accident.Secondly as be directly to gather output voltage, if the load aging for being connect is damaged
Go bad or do not connect, in general, do not interfere with its corresponding output voltage or output voltage values are varied less, be not enough to have influence on
There is upset in D/I capture card voltage acquisitions polarity, cause when load is not connect the test system still can proper testing, it is impossible to correct
Differentiation has non-loaded, may cause the abnormal generation of no-load test.3rd, the Main Function of production test is test b CM products
The correctness of hardware, for the concrete logic function of BCM product softwares and need not test.Traditional test system is to set up
In BCM actual logic function operations.Product software meeting Jing often updates upgrading for various reasons, may BCM while upgrading
Actual logic function also has change, directly influences test system functional test and also has to make corresponding change, to life
Produce test maintaining to make troubles.
The content of the invention
For above the deficiencies in the prior art, the present invention provides a kind of realization collection output electricity on the premise of load is connected to
The test system of the correctness of pressure, test system can be totally independent of BCM actual logics function and carry out production test.
To achieve these goals, what the present invention was provided is included based on car body controller output circuit production test system
Position machine module, BCM modules, power module and power resistor, the control signal of the upper computer module access BCM modules, BCM moulds
The external power resistor of block, the upper computer module include data collecting card and control centre, and the BCM modules include ECU and drive
Dynamic signal output apparatus, ECU control signals are transported to driving signal output circuit, and two power resistors are connected in a series arrangement
The driving signal output circuit interface, data collecting card are connected to the connection midpoint of two power resistors, and collection signal is passed
Give control centre.Wherein, the data collecting card is A/D capture cards.
Driving signal output circuit includes high-side drive signal output circuit and low-side drive signal output circuit, the height
End driving signal output circuit two power resistors of series connection, the two power resistor other ends are connected to power module negative pole, described low
End driving signal output circuit two power resistors of series connection, the other end of two power resistors are connected to power module positive pole.
The upper computer module also includes CAN communication board, and the BCM modules also include CAN diagnostic process modules, upper
Machine (1) Jing CAN communication boards (5) sends CAN diagnostic process module (13) of the diagnostic instruction to BCM (10), described CAN diagnosis
Processing module (13) sends diagnostic instruction to ECU (11).
The system power supply module includes Switching Power Supply and power source protective module, and the BCM modules also include Power convert mould
Block, Switching Power Supply are connected to power source protective module, power source protective module connection power transfer module and power resistor, Power convert
Module is powered to ECU, CAN diagnostic process module and driving signal output circuit.
The multigroup power resistor of output interface series connection of described driving output circuit, every group of power resistor include two and connect
Power resistor.
One kind that the present invention is provided is based on car body controller output circuit production test method, comprises the steps：First
Step, transmission instruction
Diagnostic instruction is sent to BCM's (10) by software processing module (3) Jing CAN communication boards (5) of host computer (1)
CAN diagnostic process modules (13), described CAN diagnostic process moulds (13) send diagnostic instruction to ECU (11)；
Second step, execute instruction
Described ECU (11) controls open or close described high-side drive signal output circuit or low-side drive signal is defeated
Go out circuit；
3rd step, gathered data
The partial pressure value of two described power resistors of A/D capture cards (4) collection；
4th step, processing data
Send partial pressure value to control centre (2) and be analyzed process, the data for drawing are compared with standard value and defeated
Go out result.
The driving signal output circuit of described BCM (10) by design driven fan-out capability be divided into 5A, 3A, 1A, 100mA,
Five kinds of circuits of 10mA, the connected power resistor parameter of correspondence be 75W/1.35R,
50W/2.25R, 15W/6.75R, 1.5W/67.5R, 0.15W/675R, precision are 1%.
It is an advantage of the current invention that：（1）This programme accesses specific work(using according to BCM output circuit actual designs ability
Rate resistance replaces actual loading, and the voltage gathered using A/D capture cards between two resistance replaces traditional D/I capture cards direct
Collection output voltage, solves the exception of erroneous judgement that voltage difference in traditional test scheme causes and no-load test well；（2）Adopt
Increase CAN diagnostic instructions in product software to open output circuit function to replace traditional logic function to export test side
Formula, solves the trouble of the production test maintenance brought by software of frequently upgrading well, and testing reliability is high, improves and treats
Survey the measuring accuracy of part.（3）This programme replaces traditional D/I capture cards using A/D Data Acquisition Cards, solves BCM and hinders for some reason
When exporting the voltage about between 2V～9V, system occurs the problem of erroneous judgement；（4）Power module is set up power supply and protects module and power supply
Modular converter, provides steady voltage source for each module.
Description of the drawings
Below the labelling in the content and figure of every width accompanying drawing expression in description of the invention is briefly described：
Structured flowcharts of the Fig. 1 for this programme BCM output circuit production test methods；
Fig. 2 is to BCM output circuits classification and load block diagram；
Wherein 1, upper computer module；2nd, control centre；3rd, software processing module；4th, A/D capture cards；5th, CAN communication board；
6th, Switching Power Supply；7、GND；8、VBAT；9th, power source protective module；10th, BCM modules；11、ECU；12nd, output control diagnosis；13、
CAN diagnostic process modules；14th, power transfer module；15th, low-side drive signal output；16th, high-side drive signal output；17～
20th, power resistor；21st, other functional modules；22nd, output circuit module；23rd, output interface module；24th, other output circuits
Road.
Specific embodiment
As shown in figure 1, one kind includes upper computer module, BCM moulds based on car body controller output circuit production test system
Block, power module and power resistor, wherein, power module includes Switching Power Supply and power source protective module, and BCM modules include that one is electric
Source modular converter.The POWER+ of Switching Power Supply 6 produces the negative pole of VBAT8, VBAT8 and Switching Power Supply 6 Jing after power source protective module 9
GND7 collectively constitutes the power transfer module 14 that power supply signal gives BCM10, and power transfer module 14 will be exported after Power convert
To the modules of BCM10, there is provided steady voltage source.
The control signal of upper computer module accesses BCM modules, and the external power resistor of BCM modules, upper computer module include number
According to capture card and control centre, BCM modules include ECU and driving signal output circuit, and ECU control signals are transported to drive signal
Output circuit, two power resistors are connected to the driving signal output circuit interface, data collecting card connection in a series arrangement
To the connection midpoint of two power resistors, and send collection signal to control centre.
By driving, way of output difference is divided into low-side drive signal output 15 to BCM10 output circuits and high-side drive signal is defeated
Go out 16；It is divided into 5A, 3A, 1A, 100mA and 10mA5 shelves by output current difference.Drive the output interface series connection of output circuit multigroup
Power resistor connects different power resistors to different types of output circuit.Same class output circuit connects two identical power
Resistance, and two power resistors are connected in series to output circuit interface.
The interface circuit connection power resistor 18 of low-side drive signal output 15, the other end connection work(of power resistor 18
The A/D capture cards 4 of rate resistance 17 the described host computer 1 of connection, the VBAT8 described in the other end connection of power resistor 17,
Its value is 13.5V ± 2.5V, and power resistor 17 is identical with 18 parameter of power resistor.
The interface circuit connection power resistor 20 of high-side drive signal output 16, the other end connection work(of power resistor 20
Rate resistance 19 simultaneously connects the A/D capture cards 4 of host computer 1, the described GND7 of the other end connection of power resistor 19, and its value is 0V
±1V；Power resistor 19 is identical with 20 parameter of power resistor.
The parameter of power resistor 17～20 is calculated by output current, output voltage and the circuit characteristic for corresponding to output circuit
Go out.Each shelves power resistor parameter is：75W/1.35R, 50W/2.25R, 15W/6.75R, 1.5W/67.5R, 0.15W/675R, point
Not Dui Ying 5A, 3A, 1A, 100mA and 10mA, precision required as 1%（As shown in Figure 2）；
This 5 grades of electric current outputs contain the output circuit characteristic of the overwhelming majority.For example, vehicle window output circuit adopts 5A electric currents
Shelves；Steering indicating light output circuit adopts 3A current gears；Anti-theft loudspeaker output circuit is exported using 1A current gears high-side driver；Indoor lamp
Output circuit drives output using 1A current gears low side；Key lamp output circuit adopts 100mA current gears；Set up defences lamp output circuit
Using 10mA current gears.If the output circuit that BCM also has other special, such mode can be copied to be classified, herein slightly 9
（As shown in Figure 2）.
Upper computer module also includes CAN communication board, and BCM modules also include CAN diagnostic process modules, host computer (1) Jing
CAN communication board (5) sends CAN diagnostic process module (13), CAN diagnostic process module (13) of the diagnostic instruction to BCM (10)
Send diagnostic instruction to ECU (11).
In the mode of output circuit work, various output circuit controls are opened using CAN diagnostic instructions are increased in ECU
Function, independently of the test mode of logically fuction output.12 control of ECU11 output controls diagnosis opens or closes low side drive
Dynamic signal output 15 or high-side drive signal output 16；Each fuction output of BCM is corresponding by the different accesses of correspondence output current
Power resistor, per 8 different passages of corresponding A/D capture cards all the way（As shown in Figure 2）.When output circuit works, output voltage Jing
Send A/D capture card respective channels after described power resistor partial pressure to, the magnitude of voltage for collecting is analyzed by control centre 2
Process, the data for drawing are compared with standard value and output result.
Wherein, the partial pressure value of the collection of A/D capture cards 4 driving signal output circuit output voltage is 6.5V ± 1V.Described
A/D capture cards (4), its model grind the PCI-1713BU-BE analog acquisition cards of China；Described CAN communication board (5), its
Model Zhou Ligong PCI-9820I technical grade CAN interface cards.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented
Restriction, as long as employing the improvement of various unsubstantialities that method of the present invention design and technical scheme are carried out, or without changing
Enter and the design of the present invention and technical scheme are directly applied to into other occasions, within protection scope of the present invention.
Claims (3)
1. a kind of production test system based on car body controller output circuit, the system include upper computer module, BCM modules,
Power module and power resistor, the control signal access BCM modules of the upper computer module, the external power resistor group of BCM modules,
It is characterized in that：The upper computer module includes data collecting card and control centre, and the BCM modules include ECU and drive letter
Number output circuit, ECU control signals are transported to driving signal output circuit, and power resistor group is connected to the drive in a series arrangement
Dynamic signal output apparatus interface, power resistor group include the first power resistor group and the second power resistor group, the first power resistor
Group and the second power resistor group include two power resistors, and data collecting card is connected to the connection midpoint of two power resistors, and
Send collection signal to control centre；The driving signal output circuit includes that high-side drive signal output circuit and low side drive
Dynamic signal output apparatus, the high-side drive signal output circuit include multigroup high-side drive signal output branch road, and each is high-end
Drive signal output branch road the second power resistor group of series connection, the second power resistor group other end are connected to power module negative pole, institute
Stating low-side drive signal output circuit includes multigroup low-side drive signal output branch road, each low-side drive signal output circuit string
Join the first power resistor group, the other end of the first power resistor group is connected to power module positive pole；The data collecting card is A/D
Capture card；The connection midpoint of two power resistors of the first power resistor group is connected to data collecting card, the second power resistor group
The connection midpoint of two power resistors be connected to data collecting card；The upper computer module also includes CAN communication board, described
BCM modules also include CAN diagnostic process modules, and upper computer module (1) Jing CAN communication boards (5) sends diagnostic instruction and gives BCM moulds
CAN diagnostic process modules (13) of block (10), described CAN diagnostic process modules (13) send diagnostic instruction to ECU (11)；
The power module includes Switching Power Supply and power source protective module, and the BCM modules also include power transfer module, Switching Power Supply
It is connected to power source protective module, power source protective module connection power transfer module and the first power resistor group, power transfer module
Power to ECU, CAN diagnostic process module and driving signal output circuit.
2. a kind of method of testing based on car body controller output circuit production test system according to claim 1, wraps
Include following steps：
The first step, transmission instruction send diagnosis by software processing module (3) Jing CAN communication boards (5) of upper computer module (1) and refer to
Make to CAN diagnostic process modules (13) of BCM modules (10), diagnostic instruction is transmitted by described CAN diagnostic process modules (13)
Give ECU (11)；
ECU (11) controls described in second step, execute instruction open or close described high-side drive signal output circuit or low
End driving signal output circuit；
The described power resistor group partial pressure value of 3rd step, gathered data A/D capture card (4) collection；
4th step, processing data send partial pressure value to control centre (2) and are analyzed process, and the data for drawing are entered with standard value
Row compares and output result.
3. method of testing according to claim 2, it is characterised in that：The drive signal output of described BCM modules (10)
Circuit is divided into five kinds of circuits of 5A, 3A, 1A, 100mA, 10mA, the connected power electricity of correspondence by design driven fan-out capability
Parameter is hindered for 75W/1.35R, 50W/2.25R, 15W/6.75R, 1.5W/67.5R, 0.15W/675R, precision is 1%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310577858.XA CN103592938B (en) | 2013-11-16 | 2013-11-16 | Based on car audio controller output circuit production test system and method |
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| CN201310577858.XA CN103592938B (en) | 2013-11-16 | 2013-11-16 | Based on car audio controller output circuit production test system and method |
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| CN103592938A CN103592938A (en) | 2014-02-19 |
| CN103592938B true CN103592938B (en) | 2017-04-05 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739023A (en) * | 2009-11-17 | 2010-06-16 | 中国电子科技集团公司第三十八研究所 | Car body controller simulation system |
| CN102495243A (en) * | 2011-11-26 | 2012-06-13 | 重庆长安汽车股份有限公司 | Electromagnetic compatibility test load box of automobile body controller |
| CN102681532A (en) * | 2012-05-11 | 2012-09-19 | 杭州速玛科技有限公司 | Simulating test system for BCM (body control module) |
| CN202720280U (en) * | 2012-04-07 | 2013-02-06 | 李尔汽车电子电器(上海)有限公司 | Measuring device for electronic module of automobile |
-
2013
- 2013-11-16 CN CN201310577858.XA patent/CN103592938B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101739023A (en) * | 2009-11-17 | 2010-06-16 | 中国电子科技集团公司第三十八研究所 | Car body controller simulation system |
| CN102495243A (en) * | 2011-11-26 | 2012-06-13 | 重庆长安汽车股份有限公司 | Electromagnetic compatibility test load box of automobile body controller |
| CN202720280U (en) * | 2012-04-07 | 2013-02-06 | 李尔汽车电子电器(上海)有限公司 | Measuring device for electronic module of automobile |
| CN102681532A (en) * | 2012-05-11 | 2012-09-19 | 杭州速玛科技有限公司 | Simulating test system for BCM (body control module) |
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Address after: 241000 No. 48, Yinhu North Road, Wuhu District, China (Anhui) Free Trade Pilot Zone, Wuhu City, Anhui Province Patentee after: Wuhu Etec Automotive Electronics Co.,Ltd. Address before: 241000 No. 48, Yinhu North Road, Wuhu Economic and Technological Development Zone, Anhui Province Patentee before: ATECH AUTOMOTIVE (WUHU) Co.,Ltd. |