CN102681532B - Simulating test system for BCM (body control module) - Google Patents

Simulating test system for BCM (body control module) Download PDF

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Publication number
CN102681532B
CN102681532B CN201210147494.7A CN201210147494A CN102681532B CN 102681532 B CN102681532 B CN 102681532B CN 201210147494 A CN201210147494 A CN 201210147494A CN 102681532 B CN102681532 B CN 102681532B
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China
Prior art keywords
bcm
test
emulation
modulate circuit
main frame
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CN201210147494.7A
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Chinese (zh)
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CN102681532A (en
Inventor
李秀梅
杨国青
方正
张永光
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杭州速玛科技有限公司
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Publication of CN102681532A publication Critical patent/CN102681532A/en
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Abstract

The invention discloses a simulating test system for BCM (body control module), which comprises an analogue load, a status signal conditioning circuit, a simulating test host, a command signal conditioning circuit and a fault analogue module, wherein the status signal conditioning circuit is connected with the analogue load; the simulating test host is connected with the status signal conditioning circuit; the command signal conditioning circuit is connected with the simulating test host; and the fault analogue module is connected with the command signal conditioning circuit. The simulating test system can be used for testing different types of BCM quickly, accurately and efficiently. The simulating test system has the advantages of strong generality, simple circuit structure, small size and low cost, the full-function test on one BCM can be finished within a short time, the development period of BCM is shortened, and the BCM developing expenditure is lowered.

Description

The emulation test system of a kind of BCM

Technical field

The invention belongs to automobile control test development technical field, be specifically related to the emulation test system of a kind of BCM.

Background technology

Car body controller (Body control module, BCM) is one of most important control module in automobile; It is used to control the conventional vehicle body equipment that does not need nonshared control unit, comprises the control of vehicle window, Che Jing, car door lock, car light, seat, windscreen wiper even load.

In order to meet improving constantly that the security of user to automobile and comfortableness require, simultaneously along with the development of automotive electronic technology, the function that BCM realizes is more and more, and steering logic also becomes increasingly complex.Correctness and reliability how to guarantee on stream BCM software become one of subject matter facing in BCM research and development and production, and this has also been related to the various aspects such as construction cycle, development cost of BCM.

Various functions and performance index to BCM are tested repeatedly, and according to the design of hardware and software of test result amendment BCM, make it meet car load technical requirement, just become a difficult problem; In design process, how to verify that BCM properties and functional parameter meet standard, be a quite complicated and engineering consuming time; Even if in the batch production process of BCM, performance and functional completeness that the online detection instrument of production line often can not quick test product.The problems referred to above are related to the various aspects such as the construction cycle, R & D Cost, cost control, product reliability, production efficiency of BCM.

BCM is because input signal is many, driving load is many, control function (comprising steering logic and sequential) complexity, and therefore, in its performance history, work is the test to steering logic and sequential greatly.China is to the exploitation of BCM also in the starting stage, and therefore the testing apparatus production technology of present stage is comparatively backward, mostly all based on experimental stand and manual test; Owing to controlling the restriction of the complicacy of function and personnel's operation, manual test length consuming time, efficiency is low, repeatability is poor, and some special steering logics and sequential cannot test, and this will cause developed BCM to have potential safety hazard.

At present, though there are some test macros and testing tool chain abroad, somewhat expensive, system complex and versatility are not strong, and different producers can carry out different BCM function definition according to self different vehicle conventionally, is difficult to the ready-made technology of direct foreign.Thereby, need to find one effective, more common, the method for handled easily is carried out accurately, is tested fast and efficiently, for research and development and the production of car body controller provide support BCM.

Summary of the invention

For the existing above-mentioned technological deficiency of prior art, the invention provides the emulation test system of a kind of BCM, can carry out accurately BCM, test fast and efficiently, shorten the construction cycle of BCM.

An emulation test system of BCM, comprises fictitious load, status signal modulate circuit, command signal modulate circuit, fault simulation module and emulation testing main frame; One end of fictitious load is connected with the input end of status signal modulate circuit with BCM, the input end of the output terminal of status signal modulate circuit, the input end of command signal modulate circuit and fault simulation module is all connected with emulation testing main frame, the output terminal of command signal modulate circuit is connected with the control end of fault simulation module, and the output terminal of fault simulation module is connected with BCM.

The control signal that fictitious load is exported for receiving BCM, and produce status signal;

Status signal modulate circuit is used for gathering described status signal, and status signal is nursed one's health to rear output;

Emulation testing main frame is used for the status signal after conditioning to carry out test analysis, and generates test result; It receives user's input instruction, output instruction signal and fault mode simultaneously;

Command signal modulate circuit is for nursing one's health rear output to described command signal;

Fault simulation module, for according to command signal and fault mode after conditioning, constructs fault-signal and is delivered to BCM; Described BCM receives described fault-signal, it is carried out to logic judgement and process control signal corresponding to rear output.

Preferably, described emulation testing main frame is connected with status signal modulate circuit by PCI board and instruction signal conditioning circuit, and described PCI board comprises PCI-I/O board, PCI-PWM board, PCI-CAN board and PCI-LIN board; PCI board product maturation, easy to use, signal is reliable, and has abundant Driver Library, is convenient to carry out secondary development.

Described emulation testing main frame is connected with fault simulation module by USB-CAN interface.

Preferably, described status signal modulate circuit is connected with real load by loading interfaces, and described real load is connected with BCM by loading interfaces; The control signal that real load is exported for receiving BCM, and produce status signal; Can facilitate user to choose at random between real load and fictitious load.

Preferably, described status signal modulate circuit is connected with indicating circuit; User can see the result of test event more intuitively.

Preferably, described command signal modulate circuit is connected with gauge tap; Can make user have more directly real operating experience, by true automotive controls, BCM be sent to steering order.

Described fault simulation module is connected with fictitious load; For the control signal of BCM output, need to carry out fault simulation to it, so that the troubleshooting capability of test b CM.

Preferably, described emulation testing main frame is provided with Simulink software, Labview software and Veristand software; Wherein, Simulink software is for building the model of BCM and the driver of PCI allocation board; Labview software is used for building the graphic user interface of BCM and testing, and preserves test process and test result with the form of figure, data, log file, test result is analyzed simultaneously, generates test report; Veristand software is for configuring the corresponding relation between each port and the Labview software graphic user interface under Simulink software.The graphic programming of Labview, easy to operate, rich interface, can carry out seamless link with Veristand.

Preferably, described emulation testing main frame has man-machine interface; User can input instruction by man-machine interface, and simultaneity factor can show test results with various forms by man-machine interface; Can facilitate user to operate system, and have more hommization.

Useful technique effect of the present invention is:

(1) circuit structure of the present invention is simple, and volume is little, and cost is low.

(2) the present invention can carry out accurately different BCM, test fast and efficiently highly versatile.

(3) the present invention can complete the global function test of a BCM in a short period of time, shortens the construction cycle of BCM, reduces the R & D Cost of BCM.

Brief description of the drawings

Fig. 1 is the structural representation of emulation test system of the present invention.

Fig. 2 is the inner software and hardware structure schematic diagram of emulation testing main frame.

Fig. 3 is the testing process schematic diagram of emulation testing main frame.

Embodiment

In order more specifically to describe the present invention, below in conjunction with the drawings and the specific embodiments, technical scheme of the present invention is elaborated.

As shown in Figure 1, the emulation test system of a kind of BCM, comprising: fictitious load, status signal modulate circuit, emulation testing main frame, command signal modulate circuit, fault simulation module and indicating circuit; Wherein:

Fictitious load one end is connected with status signal modulate circuit with BCM, other end ground connection; The control signal that it is exported for receiving BCM, and produce status signal; In present embodiment, fictitious load is resistive load (resistance).

Status signal modulate circuit is connected with fictitious load, and connects real load (real load receives the control signal of BCM output by loading interfaces, and produces status signal) by loading interfaces; It is for acquisition state signal, and status signal is nursed one's health to rear output;

Indicating circuit is connected with status signal modulate circuit, the status signal that its accepting state signal conditioning circuit collects, and carry out corresponding state demonstration;

Emulation testing main frame is connected with status signal modulate circuit by PCI board (PCI-I/O board, PCI-PWM board, PCI-CAN board and PCI-LIN board) and instruction signal conditioning circuit; Emulation testing main frame is used for the status signal after conditioning to carry out test analysis, and generates test result; It receives user's input instruction, output instruction signal and fault mode simultaneously;

Command signal modulate circuit is connected with gauge tap, and user can directly send steering order by gauge tap to BCM; The command signal that command signal modulate circuit is exported emulation testing main frame or the command signal producing by gauge tap are nursed one's health rear output;

Fault simulation module and instruction signal conditioning circuit is connected with fictitious load, and is connected with emulation testing main frame by USB-CAN interface; It,, for exporting according to command signal and emulation testing main frame after conditioning the fault mode providing, constructs fault-signal and is delivered to BCM;

Fault simulation module receives after the command signal after conditioning, carry out four kinds of faults to the sensor signal input pin of BCM and inject (open circuit, to power supply short circuit, short circuit between short circuit, pin over the ground), BCM receives fault-signal, and fault-signal is carried out after logic judgement is processed exporting corresponding control signal, BCM is connected with fictitious load with fault simulation module, PCI board, loading interfaces by wiring harness interface.

As shown in Figure 2, emulation testing main frame has man-machine interface, and Simulink software, Labview software and Veristand software are installed; Wherein, Simulink software is for building the model of BCM and the driver of PCI allocation board; Labview software is used for building the graphic user interface of BCM and testing, and preserves test process and test result with the form of figure, data, log file, test result is analyzed simultaneously, generates test report; Veristand software is for configuring the corresponding relation between each port and the Labview software graphic user interface under Simulink software; Man-machine interface is except showing test process and the test result under Labview, can also make user by the control knob on interface to BCM output order.

The test process step of present embodiment is as follows:

(1) on emulation testing main frame, build the simulink realistic model of measurand BCM, the board characteristic providing with reference to PCI board producer is write all kinds of PCI Labcard driver programs under windows, the board that the PCI board using is in this example produced for Taiwan Yan Hua company; Under Labview environment, build testing software host computer and test data and process backstage; Meanwhile, utilize NI/Veristand to shine upon one by one the interface under each port and Labview under Simulink.

(2) in the slot of emulation testing main frame, dispose PCI-I/O, PCI-PWM, PCI-CAN, PCI-LIN board, the output instruction signal of board is connected with the command signal modulate circuit in system, through fault simulation module, then be connected with measurand BCM through wiring harness interface; The response of BCM to command signal, is connected in system on fictitious load through fault simulation module by a wiring harness interface part, and another part response signal is directly connected on fictitious load or true electric appliance load.BCM need to collect the response data of emulation testing main frame as BCM to the control signal of load simultaneously, and preserves, shows and process.

(3) fault simulation module is for the response processing of emulation testing BCM to all kinds of faults, is also a part for BCM functional test, and in the present embodiment, fault simulation module is to be connected to emulation testing main frame by USB-CAN, directly controlled by main frame; Fault simulation module be mainly provided with BCM pin to short circuit, to power supply short circuit, open circuit and pin between short trouble etc.

(4) send command signal by the button in emulation testing main frame man-machine interface or the gauge tap button in system to BCM, initial as what test, as shown in Figure 3; BCM receives command signal and makes response, and system feeds back to control signal and execution result signals collecting in emulation testing main frame.Emulation testing main frame preserves whole test process and handles it and analyze, the test report of generating custom formula with the form of chart, data.

Claims (8)

1. an emulation test system of BCM, is characterized in that, comprises fictitious load, status signal modulate circuit, command signal modulate circuit, fault simulation module and emulation testing main frame; Fictitious load is connected with the input end of status signal modulate circuit with BCM, the input end of the output terminal of status signal modulate circuit, the input end of command signal modulate circuit and fault simulation module is all connected with emulation testing main frame, the output terminal of command signal modulate circuit is connected with the control end of fault simulation module, the output terminal of fault simulation module is connected with fictitious load with BCM, and emulation testing main frame is connected with BCM;
Described emulation testing main frame is according to user's input instruction, output instruction signal and fault mode;
Described command signal modulate circuit is for nursing one's health command signal;
Described fault simulation module, according to the command signal after fault mode and conditioning, constructs corresponding fault-signal and is injected into BCM;
Described BCM is by carrying out after logic judgement is processed exporting corresponding control signal to fault-signal;
Described fictitious load receives described control signal to produce status signal; Described status signal modulate circuit is for nursing one's health status signal; Described emulation testing main frame carries out test analysis and generates test result the status signal after nursing one's health.
2. the emulation test system of BCM according to claim 1, it is characterized in that: described emulation testing main frame is connected with status signal modulate circuit by PCI board and instruction signal conditioning circuit, and described PCI board comprises PCI-I/O board, PCI-PWM board, PCI-CAN board and PCI-LIN board.
3. the emulation test system of BCM according to claim 1, is characterized in that: described emulation testing main frame is connected with fault simulation module by USB-CAN interface.
4. the emulation test system of BCM according to claim 1, is characterized in that: described status signal modulate circuit is connected with real load by loading interfaces; Described real load is connected with BCM by loading interfaces.
5. the emulation test system of BCM according to claim 1, is characterized in that: described status signal modulate circuit is connected with indicating circuit.
6. the emulation test system of BCM according to claim 1, is characterized in that: described command signal modulate circuit is connected with gauge tap.
7. the emulation test system of BCM according to claim 1, is characterized in that: described emulation testing main frame is provided with Simulink software, Labview software and Veristand software; Wherein, Simulink software is for building the model of BCM and the driver of PCI allocation board; Labview software is used for building the graphic user interface of BCM and testing, and preserves test process and test result with the form of figure, data, log file, test result is analyzed simultaneously, generates test report; Veristand software is for configuring the corresponding relation between each port and the Labview software graphic user interface under Simulink software.
8. the emulation test system of BCM according to claim 1, is characterized in that: described emulation testing main frame has man-machine interface.
CN201210147494.7A 2012-05-11 2012-05-11 Simulating test system for BCM (body control module) CN102681532B (en)

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CN102681536B (en) * 2012-05-17 2015-04-15 杭州奥腾电子有限公司 Car body control system simulation test system based on controller area network (CAN) bus
CN102981503B (en) * 2012-12-14 2014-12-10 山东省科学院自动化研究所 Black box testing method and system for functions of electronic body control module of automobile
CN103197667B (en) * 2013-03-28 2015-06-03 湖南大学 Device and method of simulation and testing of finished car controller of hybrid power car
CN104571069A (en) * 2013-10-09 2015-04-29 上海通用汽车有限公司 Simulation testing system for automobile body controller
CN103592938B (en) * 2013-11-16 2017-04-05 埃泰克汽车电子(芜湖)有限公司 Based on car audio controller output circuit production test system and method
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
CN108152702B (en) * 2016-12-06 2020-06-12 英业达科技有限公司 Test system suitable for NGFF slot in expansion circuit board
CN106815144A (en) * 2016-12-08 2017-06-09 中国北方发动机研究所(天津) A kind of diesel engine electric control system automatic testing arrangement for softwares and method

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CN102360212B (en) * 2011-08-18 2013-10-16 哈尔滨工业大学 Automobile body control function automatic test apparatus and method thereof

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