CN102608996A - Testing system and method applied to body control module (BCM) - Google Patents
Testing system and method applied to body control module (BCM) Download PDFInfo
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- CN102608996A CN102608996A CN201210086111XA CN201210086111A CN102608996A CN 102608996 A CN102608996 A CN 102608996A CN 201210086111X A CN201210086111X A CN 201210086111XA CN 201210086111 A CN201210086111 A CN 201210086111A CN 102608996 A CN102608996 A CN 102608996A
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Abstract
The invention discloses a testing system and a testing method applied to a body control module (BCM). The BCM testing system comprises a BCM product to be tested, an industrial control computer, a product testing tool and a remote keyless entry (RKE) testing unit, wherein a testing configuration file of the BCM product to be tested is arranged in the industrial control computer; the industrial control computer is electrically connected with an input/output (I/O) testing unit, a control area network (CAN) bus communication module and an analog signal testing unit; the other end of the I/O testing unit is electrically connected with an I/O interface of the BCM product to be tested; the other end of the CAN bus communication module is electrically connected with a CAN bus of the BCM product to be tested; the other end of the analog signal testing unit is electrically connected with an analog signal of the BCM product to be tested and a digital signal port; and the RKE testing unit is electrically connected with the industrial control computer. By the system, all BCM products can be tested on the same platform in the same system, the system has a simple structure, and the problem of diversity of the BCM product test is solved.
Description
Technical field
The present invention relates to the automotive test field, relate in particular to a kind of test macro and method of testing thereof that is applied to car body control module (BCM:Body Control Module).
Background technology
Along with greater functionality is reached the more demand sustainable growth of high reliability, the kind of automotive electronics and complicacy are also increasing sharply.BCM is one of most important module in the automobile; It is used to control " vehicle body " function commonly used that does not need nonshared control unit, comprises vehicle window, car mirror, car door lock and car light control and receives the functions such as radio frequency (RF:Radio Frequency) receiver from car key and tire pressure monitor information.In addition, BCM also has the gateway effect of between disparate modules, transmitting data through network-bus.Utilize BCM and other modules to bear the realization of performance with the safety of car load jointly, can bring more intelligent and comfortable for driving.
Increasing body electronics equipment is applied at vehicle body, makes the BCM controlling object more; The function of each electronic equipment is more and more, and various functions all need realize through BCM, make that the BCM function is more powerful.Because the BCM product is to each vehicle customized development, the BCM product is imported, output port is many, and signal is complicated, therefore the logical performance software and hardware of BCM product is tested then to become becoming increasingly complex, and receives the restriction of cost and duration equally.
Test to the BCM product in the prior art all is to use chip microcontroller basically, because the singularity of each product, each product all need be made different hardware and the software of a cover and test.If each product is all developed the different test macro of a cover, so will to the test macro cost of development, and the construction cycle bring very big pressure.Therefore, can find a kind of efficient ways that the BCM product is carried out fast, tests accurately and efficiently, for the BCM Products Development provides strong support, the key that becomes the BCM exploitation and produce.
Summary of the invention
A purpose of the present invention is, a kind of BCM test macro is provided, and it can realize all products of BCM are carried out common platform test in same system, and not only system architecture is simple, and has solved the multifarious problem of BCM product test;
Another object of the present invention is to, the method for testing of a kind of BCM of being applied to is provided, it can realize the test of all BCM products in same test platform, and not only fast, accurately, efficiently, and testing cost is lower.
For realizing above-mentioned purpose, the present invention provides a kind of BCM test macro, comprising: BCM product to be measured, and it also comprises an industrial control computer, is used to connect the product test frock of BCM product to be measured and industrial control computer, reaches a RKE test cell; Be provided with the test profile of BCM product to be measured in the said industrial control computer, this industrial control computer is electrically connected with I/O test cell, CAN bus communication module, reaches the simulating signal test cell; The I/O interface of this I/O test cell other end and BCM product to be measured electrically connects, and it is used to test the I/O control signal of BCM product to be measured; The CAN bus of this CAN bus communication module other end and BCM product to be measured electrically connects, and it is used for carrying out communication with test BCM product to be measured and is connected; The simulating signal of this simulating signal test cell other end and BCM product to be measured and digital signal port electrically connect, and it is used for the simulating signal of BCM product to be measured and digital signal are tested; Said RKE test cell and industrial control computer electrically connect, and it is used for remote access control system is tested.
Wherein, said industrial control computer electrically connects through a pci bus and I/O test cell, and this I/O test cell is an I/O expansion card; This industrial control computer has 128 I/O interfaces, these 128 I/O interfaces and the corresponding electric connection of the I/O control signal of BCM product to be measured, the I/O control signal that is used to test BCM product to be measured through the pci bus expansion.
Among the present invention, said industrial control computer through pci bus, and pci bus controller expansion 128 I/O interfaces are arranged, this each I/O interface is all isolated afterwards and the corresponding electric connection of the I/O control signal of BCM product to be measured through photoelectricity.
Industrial control computer can be through USB interface or pci interface and the electric connection of CAN bus communication module, and this CAN bus communication module is a CAN expansion card; BCM product to be measured includes CAN bus, LIN bus or K_LINE bus, and this CAN bus, LIN bus or K_LINE bus all electrically connect with the CAN bus communication module.
In addition; Said industrial control computer also electrically connects a programmable electronic load, reaches programmable power supply; This programmable electronic load, and programmable power supply all electrically connect through serial line interface and industrial control computer, this programmable electronic load, reach the programmable power supply other end all with BCM product electric connection to be measured.
Concrete, said RKE test cell comprises a MCU, the digital signal processor with the PLL frequency synthesizer of MCU electric connection, electric connection successively, modulator-demodular unit, voltage controlled oscillator, BPF., reaches programmable gain amplifier; This MCU other end and programmable gain amplifier electrically connect, and PLL frequency synthesizer one end and voltage controlled oscillator electrically connect, and the other end also electrically connects a reference signal source, and this a programmable gain amplifier other end and an antenna electrically connect.
Further, the present invention also provides the method for testing of a kind of BCM of being applied to, and it comprises the steps:
BCM product to be measured is connected with an industrial control computer through test fixture; Be provided with the test profile of BCM product to be measured in this industrial control computer, the method that different state and time parameter adopt the backstage to revise test file realizes the characteristic parameter configuration of different product;
Industrial control computer is through 128 I/O control signals that the I/O interface is used to test BCM product to be measured of pci bus expansion, and this each I/O interface is all isolated through photoelectricity;
Industrial control computer is connected with the CAN bus of BCM product to be measured through the CAN bus communication module, and the LIN bus of this BCM product to be measured and K_LINE bus all electrically connect through this CAN bus communication module and industrial control computer;
Industrial control computer is through simulating signal and the digital signal test of simulating signal test cell to BCM product to be measured;
Industrial control computer adopts the PLL frequency synthesizer to realize the reception of remote access control system radio frequency part different operating frequency, through digital signal processor unlike signal is carried out modulation, thereby remote access control system is tested;
Industrial control computer is tested the every kind of function and the remote access control system of BCM product to be measured according to test profile.
Wherein, said industrial control computer electrically connects through a pci bus and an I/O test cell, and this I/O test cell is an I/O expansion card; This industrial control computer is through USB interface or pci interface and CAN bus communication module electric connection, and this CAN bus communication module is a CAN expansion card; This industrial control computer electrically connects through a pci bus and a simulating signal test cell; This I/O test cell, CAN bus communication module, and the simulating signal test cell other end electrically connect with BCM product to be measured respectively.
Industrial control computer of the present invention also electrically connects a programmable electronic load, reaches programmable power supply; This programmable electronic load, and programmable power supply all electrically connect through serial line interface and industrial control computer, this programmable electronic load, reach the programmable power supply other end all with BCM product electric connection to be measured.
In addition; Said industrial control computer electrically connects a RKE test cell, and this RKE test cell comprises a MCU, the digital signal processor with the PLL frequency synthesizer of MCU electric connection, electric connection successively, modulator-demodular unit, voltage controlled oscillator, BPF., reaches programmable gain amplifier; This MCU other end and programmable gain amplifier electrically connect, and PLL frequency synthesizer one end and voltage controlled oscillator electrically connect, and the other end also electrically connects a reference signal source, and this a programmable gain amplifier other end and an antenna electrically connect.
Test macro and the method thereof that is applied to BCM of the present invention; The common platform test that it can be realized between different B CM product finally reaches the purpose that all BCM products can carry out on same test platform, not only solved the multifarious problem of product test; And different B CM product test only need be made a backstage file, test fixture of increase gets final product; Greatly reduce testing cost, test is quick more, accurate, efficient, for the BCM Products Development provides strong support.
Description of drawings
Fig. 1 is the modular structure synoptic diagram of a kind of specific embodiment of BCM test macro of the present invention;
Fig. 2 is the circuit diagram of a kind of specific embodiment of I/O test cell among the present invention;
Fig. 3 is the modular structure synoptic diagram of a kind of specific embodiment of RKE test cell among the present invention;
Fig. 4 is for being applied to the schematic flow sheet of a kind of specific embodiment of method of testing of BCM among the present invention.
Embodiment
As shown in Figure 1; The present invention provides a kind of BCM test macro; It comprises: BCM product 10 to be measured, it also comprises an industrial control computer (IPC:Industrial Personal Computer) 20, is used to connect the product test frock (not shown) of BCM product 10 to be measured and industrial control computer 20, reaches a remote access control system (RKE:Remote Keyless Entry) test cell 30.Be provided with the test profile of BCM product 10 to be measured in the said industrial control computer 20, this industrial control computer 20 is electrically connected with I/O test cell 22, CAN bus communication module 24, reaches simulating signal test cell 26; The I/O interface of these I/O test cell 22 other ends and BCM product 10 to be measured electrically connects, and it is used to test the I/O control signal of BCM product 10 to be measured; The CAN bus of these CAN bus communication module 24 other ends and BCM product 10 to be measured electrically connects, and it is used for carrying out communication with test BCM product 10 to be measured and is connected; The simulating signal of these simulating signal test cell 26 other ends and BCM product 10 to be measured and digital signal port electrically connect, and it is used for the simulating signal of BCM product 10 to be measured and digital signal are tested; Said RKE test cell 30 electrically connects with industrial control computer 20, and it is used for remote access control system is tested.
Wherein, said industrial control computer 20 can pass through a peripheral element extension interface (PCI:Peripheral Component Interconnection) bus 21 and 22 electric connections of I/O test cell.As a kind of specific embodiment of the present invention, this I/O test cell 22 can be an I/O expansion card.In the present invention, this industrial control computer 20 has 128 I/O interfaces 23, these 128 I/O interfaces 23 and the corresponding electric connection of the I/O control signal of BCM product 10 to be measured, the I/O control signal that is used to test BCM product 10 to be measured through pci bus 21 expansions.As shown in Figure 2, as a kind of preferred embodiment of the present invention, said industrial control computer 20 can through pci bus 21, and a pci bus controller 25 expansion 128 I/O interfaces 23 are arranged.For the safety and stability of test macro, this each I/O interface 23 is all isolated back and the corresponding electric connection of the I/O control signal of BCM product 10 to be measured through photoelectricity.
As a kind of selectivity embodiment of the present invention, industrial control computer 20 can electrically connect with CAN bus communication module 24 through USB interface or pci interface 27.Among the present invention, this CAN bus communication module 24 can be specially a CAN expansion card.BCM product 10 to be measured includes CAN bus, LIN bus or K_LINE bus; This CAN bus, LIN bus or K_LINE bus all electrically connect with CAN bus communication module 24, promptly CAN bus, LIN bus, and the shared CAN expansion card of K_LINE bus communication and industrial control computer 20 communicate.
In addition; Said industrial control computer 20 also electrically connects a programmable electronic load 28, and programmable power supply 29; This programmable electronic load 28, and programmable power supply 29 all electrically connect through serial line interface and industrial control computer 20, this programmable electronic load 28, reach programmable power supply 29 other ends all with BCM product 10 electric connections to be measured.
Concrete, the RKE test cell 30 (shown in Figure 3) among the present invention comprises a MCU31, the digital signal processor (DSP:Digital Signal Processing) 33 with phaselocked loop (the PLL:Phase Locked Loop) frequency synthesizer 32 of MCU31 electric connection, electric connection successively, modulator-demodular unit (MOD:modem) 34, voltage controlled oscillator 35, BPF. (BPF:Band-Pass Filter) 36, reaches programmable gain amplifier 37.Wherein, This MCU31 other end and programmable gain amplifier 37 electrically connect; PLL frequency synthesizer 32 1 ends and voltage controlled oscillator 35 electrically connect, and the other end also electrically connects a reference signal source 38, and these programmable gain amplifier 37 other ends and an antenna 39 electrically connect.As a kind of specific embodiment of the present invention, this RKE test cell 30 can electrically connect through serial line interface 32 and industrial control computer 20.The present invention adopts radio frequency (RF:Radio Frequency) part to realize the different received frequency of operation through PLL frequency synthesizer 32 to the signal modulation of remote access control system, adopts digital signal processor 33 to realize the modulation of unlike signal.
BCM test macro of the present invention, its functional test with BCM product 10 to be measured are converted into the diagnosis identification to the port status of product, can well solve the multifarious problem of product test.This BCM test macro is realized hardware driving through calling dynamic link library (DLL:Dynamic Link Library); Industrial control computer 20 ports are connected with BCM product 10 ports to be measured through test fixture to be accomplished, and sets up through the CAN expansion card to be connected with the CAN bus of BCM product 10 to be measured.When test; At first need the test operation personnel through test platform software development one test file; At first be written into the test profile of BCM product 10 to be measured during test products through industrial computer platform test software; Start test, system will testing according to a function of function of test profile.
Further, as shown in Figure 4, the present invention also provides the method for testing of a kind of BCM of being applied to, and it comprises the steps:
Step 1; BCM product to be measured is connected with an industrial control computer through test fixture; Be provided with the test profile of BCM product to be measured in this industrial control computer, the method that different state and time parameter adopt the backstage to revise test file realizes the characteristic parameter configuration of different product.The method of testing of BCM of the present invention; Test to difference BCM product to be measured only need be made a backstage file; Increase a test fixture and get final product, well solved the special processing function between different product, greatly reduce testing cost; Test is quick more, accurate, efficient, for the BCM Products Development provides strong support.
Step 2, industrial control computer is through 128 I/O control signals that the I/O interface is used to test BCM product to be measured of pci bus expansion, and this each I/O interface is all isolated through photoelectricity.In the specific embodiment of the invention, said industrial control computer electrically connects through a pci bus and an I/O test cell, and this I/O test cell other end all electrically connects with BCM product to be measured, and this I/O test cell can be specially an I/O expansion card.
Step 4, industrial control computer is through simulating signal and the digital signal test of simulating signal test cell to BCM product to be measured.Among the present invention, this industrial control computer electrically connects through a pci bus and a simulating signal test cell, and this simulating signal test cell other end all electrically connects with BCM product to be measured.Further; Industrial control computer of the present invention also is electrically connected with a programmable electronic load, reaches programmable power supply; This programmable electronic load, and programmable power supply all can electrically connect through serial line interface and industrial control computer, this programmable electronic load, and the programmable power supply other end all with BCM product electric connection to be measured.
In sum; Test macro and the method thereof that is applied to BCM of the present invention; The common platform test that it can be realized between different B CM product finally reaches the purpose that all BCM products can carry out on same test platform, not only solved the multifarious problem of product test; And different B CM product test only need be made a backstage file, test fixture of increase gets final product; Greatly reduce testing cost, test is quick more, accurate, efficient, for the BCM Products Development provides strong support.
The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of accompanying Claim of the present invention.
Claims (10)
1. a BCM test macro comprises BCM product to be measured, it is characterized in that, also comprises an industrial control computer, is used to connect product test frock, and the RKE test cell of BCM product to be measured and industrial control computer; Be provided with the test profile of BCM product to be measured in the said industrial control computer, this industrial control computer is electrically connected with I/O test cell, CAN bus communication module, reaches the simulating signal test cell; The I/O interface of this I/O test cell other end and BCM product to be measured electrically connects, and it is used to test the I/O control signal of BCM product to be measured; The CAN bus of this CAN bus communication module other end and BCM product to be measured electrically connects, and it is used for carrying out communication with test BCM product to be measured and is connected; The simulating signal of this simulating signal test cell other end and BCM product to be measured and digital signal port electrically connect, and it is used for the simulating signal of BCM product to be measured and digital signal are tested; Said RKE test cell and industrial control computer electrically connect, and it is used for remote access control system is tested.
2. BCM test macro as claimed in claim 1 is characterized in that, said industrial control computer electrically connects through a pci bus and I/O test cell, and this I/O test cell is an I/O expansion card; This industrial control computer has 128 I/O interfaces, these 128 I/O interfaces and the corresponding electric connection of the I/O control signal of BCM product to be measured, the I/O control signal that is used to test BCM product to be measured through the pci bus expansion.
3. BCM test macro as claimed in claim 2; It is characterized in that; Said industrial control computer through pci bus, and pci bus controller expansion 128 I/O interfaces are arranged, this each I/O interface is all isolated afterwards and the corresponding electric connection of the I/O control signal of BCM product to be measured through photoelectricity.
4. BCM test macro as claimed in claim 1 is characterized in that, said industrial control computer is through USB interface or pci interface and the electric connection of CAN bus communication module, and this CAN bus communication module is a CAN expansion card; BCM product to be measured includes CAN bus, LIN bus or K_LINE bus, and this CAN bus, LIN bus or K_LINE bus all electrically connect with the CAN bus communication module.
5. BCM test macro as claimed in claim 1; It is characterized in that; Said industrial control computer also electrically connects a programmable electronic load, reaches programmable power supply; This programmable electronic load, and programmable power supply all electrically connect through serial line interface and industrial control computer, this programmable electronic load, reach the programmable power supply other end all with BCM product electric connection to be measured.
6. BCM test macro as claimed in claim 1; It is characterized in that said RKE test cell comprises a MCU, the digital signal processor with the PLL frequency synthesizer of MCU electric connection, electric connection successively, modulator-demodular unit, voltage controlled oscillator, BPF., reaches programmable gain amplifier; This MCU other end and programmable gain amplifier electrically connect, and PLL frequency synthesizer one end and voltage controlled oscillator electrically connect, and the other end also electrically connects a reference signal source, and this a programmable gain amplifier other end and an antenna electrically connect.
7. a method of testing that is applied to BCM is characterized in that, comprises the steps:
BCM product to be measured is connected with an industrial control computer through test fixture; Be provided with the test profile of BCM product to be measured in this industrial control computer, the method that different state and time parameter adopt the backstage to revise test file realizes the characteristic parameter configuration of different product;
Industrial control computer is through 128 I/O control signals that the I/O interface is used to test BCM product to be measured of pci bus expansion, and this each I/O interface is all isolated through photoelectricity;
Industrial control computer is connected with the CAN bus of BCM product to be measured through the CAN bus communication module, and the LIN bus of this BCM product to be measured and K_LINE bus all electrically connect through this CAN bus communication module and industrial control computer;
Industrial control computer is through simulating signal and the digital signal test of simulating signal test cell to BCM product to be measured;
Industrial control computer adopts the PLL frequency synthesizer to realize the reception of remote access control system radio frequency part different operating frequency, through digital signal processor unlike signal is carried out modulation, thereby remote access control system is tested;
Industrial control computer is tested the every kind of function and the remote access control system of BCM product to be measured according to test profile.
8. the method for testing that is applied to BCM as claimed in claim 7 is characterized in that, said industrial control computer electrically connects through a pci bus and an I/O test cell, and this I/O test cell is an I/O expansion card; This industrial control computer is through USB interface or pci interface and CAN bus communication module electric connection, and this CAN bus communication module is a CAN expansion card; This industrial control computer electrically connects through a pci bus and a simulating signal test cell; This I/O test cell, CAN bus communication module, and the simulating signal test cell other end electrically connect with BCM product to be measured respectively.
9. the method for testing that is applied to BCM as claimed in claim 7; It is characterized in that; Said industrial control computer also electrically connects a programmable electronic load, reaches programmable power supply; This programmable electronic load, and programmable power supply all electrically connect through serial line interface and industrial control computer, this programmable electronic load, reach the programmable power supply other end all with BCM product electric connection to be measured.
10. the method for testing that is applied to BCM as claimed in claim 7; It is characterized in that; Said industrial control computer electrically connects a RKE test cell, and this RKE test cell comprises a MCU, the digital signal processor with the PLL frequency synthesizer of MCU electric connection, electric connection successively, modulator-demodular unit, voltage controlled oscillator, BPF., reaches programmable gain amplifier; This MCU other end and programmable gain amplifier electrically connect, and PLL frequency synthesizer one end and voltage controlled oscillator electrically connect, and the other end also electrically connects a reference signal source, and this a programmable gain amplifier other end and an antenna electrically connect.
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| CN104484247A (en) * | 2014-11-28 | 2015-04-01 | 科世达（上海）管理有限公司 | Device, system and method for synchronously and automatically testing automotive equipment |
| CN104699066A (en) * | 2013-12-04 | 2015-06-10 | 大陆汽车***（天津）有限公司 | Electronic control module |
| CN106502236A (en) * | 2016-10-27 | 2017-03-15 | 武汉奥泽电子有限公司 | BCM multimachines automatization test system and method |
| CN106998232A (en) * | 2017-03-22 | 2017-08-01 | 普联技术有限公司 | A kind of method for obtaining RF power amplification load pull parameters |
| CN109582008A (en) * | 2019-01-24 | 2019-04-05 | 中汽研（天津）汽车工程研究院有限公司 | A kind of portable real-time test device of BCM based on cRIO |
| CN110456762A (en) * | 2019-07-25 | 2019-11-15 | 合肥同智机电控制技术有限公司 | A kind of vehicle integrated control system |
| CN112255483A (en) * | 2020-10-19 | 2021-01-22 | 上海沪工汽车电器有限公司 | Automobile central junction box test system |
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| CN112255483A (en) * | 2020-10-19 | 2021-01-22 | 上海沪工汽车电器有限公司 | Automobile central junction box test system |
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| CN102608996B (en) | 2014-09-17 |
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