CN102608996B - 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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- CN102608996B CN102608996B CN201210086111.XA CN201210086111A CN102608996B CN 102608996 B CN102608996 B CN 102608996B CN 201210086111 A CN201210086111 A CN 201210086111A CN 102608996 B CN102608996 B CN 102608996B
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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 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 to greater functionality and 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 automobile, it is used to control conventional " vehicle body " function 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 transmitting data by network-bus between disparate modules.Utilize BCM and the performance of other module shared car loads and safe realization, can bring more intelligence and comfortable for driving.
Increasing body electronics equipment is applied at vehicle body, makes BCM control object more; The function of each electronic equipment is more and more, and various functions all need to realize by BCM, make BCM function more powerful.Because BCM product is for each vehicle customized development, BCM product is inputted, output port is many, and signal is complicated, therefore the logical performance software and hardware test of BCM product is become and is become increasingly complex, and is subject to equally the restriction of cost and duration.
In prior art, to the test of BCM product, be all that due to the singularity of each product, each product needs to do a set of different hardware and software is tested by chip microcontroller substantially.If each product is developed to a set of different test macro, will test macro cost of development and construction cycle be brought to very large pressure so.Therefore, can find a kind of effective method to BCM product carry out fast, test accurately and efficiently, for the exploitation of BCM product provides strong support, become the key of BCM development and production.
Summary of the invention
An object of the present invention is, a kind of BCM test macro is provided, and it can realize all products of BCM are carried out to 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 achieving the above object, the invention provides a kind of BCM test macro, comprising: BCM product to be measured, it also comprises an industrial control computer, for connecting product test frock and a RKE test cell of BCM product to be measured and industrial control computer; In described industrial control computer, be provided with the test profile of BCM product to be measured, this industrial control computer is electrically connected with I/O test cell, CAN bus communication module and simulating signal test cell; The I/O interface of this I/O test cell other end and BCM product to be measured is electrically connected, and it is for testing 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 is electrically connected, and it is connected for carrying out communication with test BCM product to be measured; The simulating signal of this simulating signal test cell other end and BCM product to be measured and digital signal port are electrically connected, and it is for testing the simulating signal of BCM product to be measured and digital signal; Described RKE test cell and industrial control computer are electrically connected, and it is for testing remote access control system.
Wherein, described industrial control computer is electrically connected by a pci bus and I/O test cell, and this I/O test cell is an I/O expansion card; This industrial control computer is expanded and is had 128 I/O interfaces by pci bus, and the corresponding electric connection of I/O control signal of these 128 I/O interfaces and BCM product to be measured, for testing the I/O control signal of BCM product to be measured.
In the present invention, described industrial control computer has 128 I/O interfaces by the expansion of pci bus and a pci bus controller, this each I/O interface all after photoelectricity isolation with the corresponding electric connection of I/O control signal of BCM product to be measured.
Industrial control computer can be electrically connected by USB interface or pci interface and 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 are all electrically connected with CAN bus communication module.
In addition, described industrial control computer is also electrically connected programmable electronic load and a programmable power supply, this programmable electronic load and programmable power supply are all electrically connected by serial line interface and industrial control computer, and this programmable electronic load and the programmable power supply other end are all electrically connected with BCM product to be measured.
Specifically, described RKE test cell comprises that a MCU, the PLL frequency synthesizer with MCU electric connection are, digital signal processor, modulator-demodular unit, voltage controlled oscillator, bandpass filter and the programmable gain amplifier being electrically connected successively; This MCU other end and programmable gain amplifier are electrically connected, and PLL frequency synthesizer one end and voltage controlled oscillator are electrically connected, and the other end is also electrically connected a reference signal source, and this programmable gain amplifier other end and an antenna are electrically connected.
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 by test fixture, in this industrial control computer, be provided with the test profile of BCM product to be measured, the method that different states and time parameter adopt backstage to revise test file realizes the characteristic parameter configuration of different product;
Industrial control computer is expanded the I/O control signal of 128 I/O interfaces for testing BCM product to be measured by pci bus, and this each I/O interface is all isolated by photoelectricity;
Industrial control computer is connected with the CAN bus of BCM product to be measured by CAN bus communication module, and the LIN bus of this BCM product to be measured and K_LINE bus are all electrically connected by this CAN bus communication module and industrial control computer;
Industrial control computer is tested the simulating signal of BCM product to be measured and digital signal by simulating signal test cell;
Industrial control computer adopts PLL frequency synthesizer to realize the reception of remote access control system radio frequency part different operating frequency, by digital signal processor, unlike signal is carried out to modulation /demodulation, thereby remote access control system is tested;
Industrial control computer is tested every kind of function of BCM product to be measured and remote access control system according to test profile.
Wherein, described industrial control computer is electrically connected by 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 electrically connected by USB interface or pci interface and a CAN bus communication module, and this CAN bus communication module is a CAN expansion card; This industrial control computer is electrically connected by 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 are electrically connected with BCM product to be measured respectively.
Industrial control computer of the present invention is also electrically connected programmable electronic load and a programmable power supply, this programmable electronic load and programmable power supply are all electrically connected by serial line interface and industrial control computer, and this programmable electronic load and the programmable power supply other end are all electrically connected with BCM product to be measured.
In addition, described industrial control computer is electrically connected a RKE test cell, and the PLL frequency synthesizer that this RKE test cell comprises a MCU, be electrically connected with MCU is, digital signal processor, modulator-demodular unit, voltage controlled oscillator, bandpass filter and the programmable gain amplifier being electrically connected successively; This MCU other end and programmable gain amplifier are electrically connected, and PLL frequency synthesizer one end and voltage controlled oscillator are electrically connected, and the other end is also electrically connected a reference signal source, and this programmable gain amplifier other end and an antenna are electrically connected.
Test macro and the method thereof that is applied to BCM of the present invention, it can realize the common platform test between different B CM product, finally reach the object 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 to be made a backstage file, increase a test fixture, greatly reduce testing cost, test more fast, accurately, efficient, for the exploitation of BCM product provides strong support.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic 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 in the present invention;
Fig. 3 is the modular structure schematic diagram of a kind of specific embodiment of RKE test cell in the present invention;
Fig. 4 is the schematic flow sheet that is applied to a kind of specific embodiment of method of testing of BCM in the present invention.
Embodiment
As shown in Figure 1, the 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, for connecting product test frock (not shown) and a remote access control system (the RKE:Remote Keyless Entry) test cell 30 of BCM product to be measured 10 and industrial control computer 20.In described industrial control computer 20, be provided with the test profile of BCM product 10 to be measured, this industrial control computer 20 is electrically connected with I/O test cell 22, CAN bus communication module 24 and 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 is electrically connected, and it is for testing 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 is electrically connected, and it is connected for carrying out communication with test BCM product 10 to be measured; The simulating signal of these simulating signal test cell 26 other ends and BCM product 10 to be measured and digital signal port are electrically connected, and it is for testing the simulating signal of BCM product 10 to be measured and digital signal; Described RKE test cell 30 is electrically connected with industrial control computer 20, and it is for testing remote access control system.
Wherein, described 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 by pci bus 21 expansion, and the corresponding electric connection of I/O control signal of these 128 I/O interfaces 23 and BCM product 10 to be measured, for testing the I/O control signal of BCM product 10 to be measured.As shown in Figure 2, as a preferred embodiment of the present invention, described industrial control computer 20 can have 128 I/O interfaces 23 by pci bus 21 and pci bus controller 25 expansions.For the safety and stability of test macro, this each I/O interface 23 all through after photoelectricity isolation with the corresponding electric connection of I/O control signal of BCM product 10 to be measured.
As a kind of selectivity embodiment of the present invention, industrial control computer 20 can be electrically connected with CAN bus communication module 24 by USB interface or pci interface 27.In 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 are all electrically connected with CAN bus communication module 24, and the shared CAN expansion card of CAN bus, LIN bus and K_LINE bus communication and industrial control computer 20 communicate.
In addition, described industrial control computer 20 is also electrically connected a programmable electronic load 28 and programmable power supply 29, this programmable electronic load 28 and programmable power supply 29 are all electrically connected by serial line interface and industrial control computer 20, and this programmable electronic load 28 and programmable power supply 29 other ends are all electrically connected with BCM product 10 to be measured.
Specifically, shown in the RKE test cell 30(Fig. 3 in the present invention) comprise that a MCU31, phaselocked loop (the PLL:Phase Locked Loop) frequency synthesizer 32 with MCU31 electric connection are, digital signal processor (DSP:Digital Signal Processing) 33, modulator-demodular unit (MOD:modem) 34, voltage controlled oscillator 35, bandpass filter (BPF:Band-Pass Filter) 36 and the programmable gain amplifier 37 being electrically connected successively.Wherein, this MCU31 other end and programmable gain amplifier 37 are electrically connected, PLL frequency synthesizer 32 one end and voltage controlled oscillator 35 are electrically connected, and the other end is also electrically connected a reference signal source 38, and these programmable gain amplifier 37 other ends and an antenna 39 are electrically connected.As a kind of specific embodiment of the present invention, this RKE test cell 30 can be electrically connected by serial line interface 32 and industrial control computer 20.The present invention adopts radio frequency (RF:Radio Frequency) part to realize different reception frequency of operation by PLL frequency synthesizer 32 to the signal modulation of remote access control system, adopts digital signal processor 33 to realize the modulation /demodulation of unlike signal.
BCM test macro of the present invention, its functional test by BCM product 10 to be measured is converted into the diagnosis and distinguish to the port status of product, can well solve the multifarious problem of product test.This BCM test macro is realized hardware driving by calling dynamic link library (DLL:Dynamic Link Library), industrial control computer 20 ports are connected by test fixture and complete with BCM product 10 ports to be measured, by CAN expansion card, are set up and are connected with the CAN bus of BCM product 10 to be measured.When test, first need test operation personnel by test platform software development one test file, during test products, by industrial computer platform test software, be first written into the test profile of BCM product 10 to be measured, 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 by test fixture, in this industrial control computer, be provided with the test profile of BCM product to be measured, the method that different states and time parameter adopt backstage to revise test file realizes the characteristic parameter configuration of different product.The method of testing of BCM of the present invention, to the test of difference BCM product to be measured, only need to make a backstage file, increase a test fixture, well solved the special processing function between different product, greatly reduce testing cost, test more fast, accurately, efficient, for the exploitation of BCM product provides strong support.
Step 2, industrial control computer is expanded the I/O control signal of 128 I/O interfaces for testing BCM product to be measured by pci bus, and this each I/O interface is all isolated by photoelectricity.In the specific embodiment of the invention, described industrial control computer is electrically connected by pci bus and an I/O test cell, and this I/O test cell other end is all electrically connected with BCM product to be measured, and this I/O test cell can be specially an I/O expansion card.
Step 3, industrial control computer is connected with the CAN bus of BCM product to be measured by CAN bus communication module, and the LIN bus of this BCM product to be measured and K_LINE bus are all electrically connected by this CAN bus communication module and industrial control computer.In the present invention, this industrial control computer can be electrically connected by USB interface or pci interface and a CAN bus communication module, and this CAN bus communication module other end is all electrically connected with BCM product to be measured.In the specific embodiment of the invention, this CAN bus communication module can be a CAN expansion card.The CAN bus of BCM product to be measured, LIN bus and K_LINE bus are all electrically connected with this CAN bus communication module, and the shared CAN expansion card of CAN bus, LIN bus and K_LINE bus communication and industrial control computer communicate.
Step 4, industrial control computer is tested the simulating signal of BCM product to be measured and digital signal by simulating signal test cell.In the present invention, this industrial control computer is electrically connected by pci bus and a simulating signal test cell, and this simulating signal test cell other end is all electrically connected with BCM product to be measured.Further, industrial control computer of the present invention is also electrically connected with programmable electronic load and a programmable power supply, this programmable electronic load and programmable power supply all can be electrically connected by serial line interface and industrial control computer, and this programmable electronic load and the programmable power supply other end are all electrically connected with BCM product to be measured.
Step 5, industrial control computer adopts PLL frequency synthesizer to realize the reception of remote access control system radio frequency part different operating frequency, by digital signal processor, unlike signal is carried out to modulation /demodulation, thereby remote access control system is tested.As a preferred embodiment of the present invention, described industrial control computer is electrically connected a RKE test cell, and the PLL frequency synthesizer that this RKE test cell comprises a MCU, be electrically connected with MCU is, digital signal processor, modulator-demodular unit, voltage controlled oscillator, bandpass filter and the programmable gain amplifier being electrically connected successively; This MCU other end and programmable gain amplifier are electrically connected, and PLL frequency synthesizer one end and voltage controlled oscillator are electrically connected, and the other end is also electrically connected a reference signal source, and this programmable gain amplifier other end and an antenna are electrically connected.
Step 6, industrial control computer is tested every kind of function of BCM product to be measured and remote access control system according to test profile.While utilizing method of the present invention to test BCM product to be measured, first-selection needs test operation personnel by test platform software development one test file, during test products, by industrial computer platform test software, be first written into the test preparation file of BCM product to be measured, then press test and start button startup test, the test macro of BCM will testing according to a function of function of test profile.After each functional test completes, the qualified OK that shows, defectively shows ERROR, if qualified demonstration green light after having tested defectively shows that red light reminds.
In sum, test macro and the method thereof that is applied to BCM of the present invention, it can realize the common platform test between different B CM product, finally reach the object 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 to be made a backstage file, increase a test fixture, greatly reduce testing cost, test more fast, accurately, efficient, for the exploitation of BCM product 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 the accompanying claim of the present invention.
Claims (9)
1. a BCM test macro, comprises BCM product to be measured, it is characterized in that, also comprises an industrial control computer, for connecting product test frock and a RKE test cell of BCM product to be measured and industrial control computer; In described industrial control computer, be provided with the test profile of BCM product to be measured, this industrial control computer is electrically connected with I/O test cell, CAN bus communication module and simulating signal test cell; The I/O interface of this I/O test cell other end and BCM product to be measured is electrically connected, and it is for testing 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 is electrically connected, and it is connected for carrying out communication with test BCM product to be measured; The simulating signal of this simulating signal test cell other end and BCM product to be measured and digital signal port are electrically connected, and it is for testing the simulating signal of BCM product to be measured and digital signal; The PLL frequency synthesizer that described RKE test cell comprises a MCU, be electrically connected with MCU is, digital signal processor, modulator-demodular unit, voltage controlled oscillator, bandpass filter and the programmable gain amplifier being electrically connected successively; This MCU other end and programmable gain amplifier are electrically connected, PLL frequency synthesizer one end and voltage controlled oscillator are electrically connected, the other end is also electrically connected a reference signal source, this programmable gain amplifier other end and an antenna are electrically connected, described RKE test cell and industrial control computer are electrically connected, and it is for testing remote access control system.
2. BCM test macro as claimed in claim 1, is characterized in that, described industrial control computer is electrically connected by a pci bus and I/O test cell, and this I/O test cell is an I/O expansion card; This industrial control computer is expanded and is had 128 I/O interfaces by pci bus, and the corresponding electric connection of I/O control signal of these 128 I/O interfaces and BCM product to be measured, for testing the I/O control signal of BCM product to be measured.
3. BCM test macro as claimed in claim 2, it is characterized in that, described industrial control computer has 128 I/O interfaces by the expansion of pci bus and a pci bus controller, this each I/O interface all after photoelectricity isolation with the corresponding electric connection of I/O control signal of BCM product to be measured.
4. BCM test macro as claimed in claim 1, is characterized in that, described industrial control computer is electrically connected by USB interface or pci interface and 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 are all electrically connected with CAN bus communication module.
5. BCM test macro as claimed in claim 1, it is characterized in that, described industrial control computer is also electrically connected programmable electronic load and a programmable power supply, this programmable electronic load and programmable power supply are all electrically connected by serial line interface and industrial control computer, and this programmable electronic load and the programmable power supply other end are all electrically connected with BCM product to be measured.
6. 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 by test fixture, in this industrial control computer, be provided with the test profile of BCM product to be measured, the method that different states and time parameter adopt backstage to revise test file realizes the characteristic parameter configuration of different product;
Industrial control computer is expanded the I/O control signal of 128 I/O interfaces for testing BCM product to be measured by pci bus, and this each I/O interface is all isolated by photoelectricity;
Industrial control computer is connected with the CAN bus of BCM product to be measured by CAN bus communication module, and the LIN bus of this BCM product to be measured and K_LINE bus are all electrically connected by this CAN bus communication module and industrial control computer;
Industrial control computer is tested the simulating signal of BCM product to be measured and digital signal by simulating signal test cell;
Industrial control computer adopts PLL frequency synthesizer to realize the reception of remote access control system radio frequency part different operating frequency, by digital signal processor, unlike signal is carried out to modulation /demodulation, thereby remote access control system is tested;
Industrial control computer is tested every kind of function of BCM product to be measured and remote access control system according to test profile.
7. the method for testing that is applied to BCM as claimed in claim 6, is characterized in that, described industrial control computer is electrically connected by 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 electrically connected by USB interface or pci interface and a CAN bus communication module, and this CAN bus communication module is a CAN expansion card; This industrial control computer is electrically connected by 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 are electrically connected with BCM product to be measured respectively.
8. the method for testing that is applied to BCM as claimed in claim 6, it is characterized in that, described industrial control computer is also electrically connected programmable electronic load and a programmable power supply, this programmable electronic load and programmable power supply are all electrically connected by serial line interface and industrial control computer, and this programmable electronic load and the programmable power supply other end are all electrically connected with BCM product to be measured.
9. the method for testing that is applied to BCM as claimed in claim 6, it is characterized in that, described industrial control computer is electrically connected a RKE test cell, and the PLL frequency synthesizer that this RKE test cell comprises a MCU, be electrically connected with MCU is, digital signal processor, modulator-demodular unit, voltage controlled oscillator, bandpass filter and the programmable gain amplifier being electrically connected successively; This MCU other end and programmable gain amplifier are electrically connected, and PLL frequency synthesizer one end and voltage controlled oscillator are electrically connected, and the other end is also electrically connected a reference signal source, and this programmable gain amplifier other end and an antenna are electrically connected.
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| CN104699066A (en) * | 2013-12-04 | 2015-06-10 | 大陆汽车系统（天津）有限公司 | Electronic control module |
| 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 |
| CN106502236B (en) * | 2016-10-27 | 2019-03-15 | 武汉奥泽电子有限公司 | BCM multimachine automatization test system and method |
| CN106998232B (en) * | 2017-03-22 | 2020-06-16 | 普联技术有限公司 | Method for acquiring load pull parameter of radio frequency power amplifier |
| 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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