CN113092898A

CN113092898A - EDR system integration parameter input testing device and testing method

Info

Publication number: CN113092898A
Application number: CN202110302936.XA
Authority: CN
Inventors: 代意想; 杨阳; 李超平; 杨春棋; 刘姣; 陈成; 卿辉
Original assignee: Dongfeng Peugeot Citroen Automobile Co Ltd
Current assignee: Dongfeng Peugeot Citroen Automobile Co Ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-07-09

Abstract

The invention relates to the technical field of automobile detection simulation structures, in particular to an EDR system integration parameter input testing device and a testing method. The box is internally provided with: the airbag simulation load module is used for simulating an airbag on a vehicle to be tested; the control unit module is used for storing the environmental parameters and fault information of the whole vehicle required by the test and controlling the alarm device on the test box to work; the CAN communication module is used for connecting the control unit module with the upper computer and the EDR controller for data transmission; the air bag simulation load module comprises a plurality of groups of module units, each group of module units comprises an air bag switch arranged on the test box, an indicator light used for displaying the opening or closing of the switch and a resistor which is arranged in the test box and used for simulating an air bag and is electrically connected with the air bag switch; the control unit module is in data connection with the indicator lamp and the CAN communication module. The invention has simple operation and high integration level, greatly improves the test efficiency, optimizes the test environment and improves the test accuracy.

Description

EDR system integration parameter input testing device and testing method

Technical Field

The invention relates to the technical field of automobile detection simulation structures, in particular to an EDR system integration parameter input testing device and a testing method.

Background

The mandatory national standard of the automobile Event Data recording System has been promulgated and implemented, and for the convenience of brief description, we call the automobile Event Data Recorder System (Event Data Recorder System) as the EDR System, and the corresponding functions and technologies are called EDR functions and technologies. The EDR regulations have clear requirements on recording parameters and recording times of EDR controllers, and in order to cope with the influence on vehicle type admission after new regulations are published, functional tests and verifications related to the EDR regulations are actively being carried out by complete vehicle plants and EDR part suppliers.

Currently, when EDR (electronic data rating) rule parameters are integrally tested on a whole vehicle, the real vehicle is mainly adopted to control each functional block, and signal change is monitored on a specific network so as to verify the correctness and integrity of the rule parameters; when EDR locking event parameters are tested, a mode of additionally installing a patch cord to connect an external resistor is adopted to replace an active air bag, so that the phenomenon that the air bag explodes when a locking event is triggered is avoided. In EDR singleton development, a supplier typically simply simulates some of the input parameters on a bench using virtual equipment to perform the corresponding tests, and then verifies the compliance of the EDR regulations from a singleton perspective. When testing on the law certification rack, a tester needs to set up and debug a test environment through a complex peripheral terminal and a virtual ECU with the assistance of a professional, so that corresponding law testing can be realized.

However, when an EDR system performs an integrated test of a whole vehicle, a large amount of real vehicle operations, a large amount of network data monitoring, and a large number of fault events are required to be performed, and at the same time, different types of EDR events are required to be triggered and recorded event data is extracted for subsequent analysis, so that in the test of the whole vehicle, driving cost is difficult to control, a cockpit test environment is complicated, an ECU system fault caused by poor contact of an external resistor patch cord frequently occurs, and a part of fault parameters cannot be quickly and effectively verified. During development and test of EDR parts, due to the immature limit of system integration, parameters and performance tested by a supplier are often difficult to meet the requirements of a finished automobile system, and the design requirements of the parts can be optimized and verified by matching with an electrical apparatus integration test department of a finished automobile plant, so that the progress of product development is seriously influenced. When the EDR regulation certification rack is used for testing, the building and debugging modules of a testing environment are too many, the stability is not mature enough, the configuration of parameters required to be input in the testing is not rich enough, the interfaces of EDR controllers of various manufacturers are different, and the testing can be finished under the debugging of extra professionals. Based on the problems and difficulties encountered in the testing process of the EDR regulations by the whole car factories, suppliers and detection and certification organizations, a new integrated system solution is urgently needed to be developed and designed.

Disclosure of Invention

The invention aims to solve the defects of the background technology and provide an EDR system integration parameter input testing device and a testing method.

The technical scheme of the invention is as follows: the utility model provides an integrated parameter input testing arrangement of EDR system, includes the box, its characterized in that: the box is internally provided with:

the air bag simulation load module is used for simulating an air bag;

the control unit module is used for storing the environmental parameters and fault information of the whole vehicle required by the test and controlling the alarm device on the test box to work;

the CAN communication module is used for connecting the control unit module with the upper computer and the EDR controller for data transmission;

the airbag analog load module comprises a plurality of groups of module units, each group of module units comprises an airbag switch arranged on the box body, a display lamp used for displaying the opening or closing of the airbag switch and a resistor which is arranged in the box body and used for simulating an airbag and is electrically connected with the airbag switch; and the control unit module is in data connection with the indicator lamp and the CAN communication module.

The airbag analog load module further comprises a resistor mounting bracket arranged in the box body; the resistor mounting bracket is provided with a buckle structure convenient for replacing the resistor; the buckle structure clamps the resistor on the resistor mounting bracket.

The buckle structure further comprises a clamping loose-leaf; one end of the clamping loose leaf is hinged to the resistor mounting bracket, and the other end of the clamping loose leaf is provided with a loose leaf buckle; the resistor mounting bracket is provided with a buckle groove corresponding to the loose-leaf buckle; the loose-leaf buckle is buckled in the buckle groove to clamp the resistor between the resistor mounting bracket and the clamping loose leaf.

And further, a resistor clamping groove for placing a resistor is formed in the upper end of the resistor mounting bracket.

Furthermore, one side of the clamping loose-leaf facing the resistor mounting support is provided with a convex point extending towards the resistor clamping groove.

And further, an external interface connected with the EDR controller is arranged on the box body.

Further, a portable handle is arranged on the box body.

Further, a box body support is arranged on the box body.

A method of testing, characterized by: the control unit module is connected with the upper computer and the EDR controller through the CAN communication module, the upper computer transmits parameters required by testing and preset fault information to the control unit module, the airbag simulation load module is configured to enable the parameters to be consistent with an airbag channel of the EDR controller, the control unit module sends the parameters required by testing to the EDR controller after configuration is completed, then collision testing is carried out, after the collision testing is completed, the faults of the EDR controller are identified through the reading instruction of the upper computer, and follow-up debugging and analysis are carried out by combining the parameters required by testing.

A further method of configuring an airbag mock-up load module to conform to an airbag tunnel comprises: and selecting the same number of module units according to the number of channels of the electronic control unit of the EDR controller to be tested, and opening the airbag switches of the corresponding module units to complete the configuration consistent with the airbag channels.

The invention has the advantages that: 1. the airbag is simulated by the airbag simulation load module, the number of channels of the airbag simulation load is flexibly configured, the EDR controller is tested, and the integrated test and debugging of the EDR controller can be completed without complex peripheral terminals and virtual ECUs (electronic control units), so that a large amount of manpower and material resources are saved for subsequent fault analysis and adjustment, and the method has great popularization value;

2. the resistor is conveniently replaced by arranging the buckle structure on the resistor mounting bracket, and the resistor is not easy to replace because the resistor is damaged and bonded on the resistor mounting bracket, so that the buckle structure can conveniently and quickly replace the resistor.

The testing device disclosed by the invention is simple in structure, is applied to testing of the EDR controller, is convenient for fault analysis and subsequent debugging, is extremely simple in testing method, greatly facilitates testing, research and development and certification work of a whole vehicle factory, a supplier and a detection certification mechanism, is simple to operate and control, is high in integration level, greatly improves the testing efficiency, optimizes the testing environment and improves the testing accuracy.

Drawings

FIG. 1: the external schematic view of the box structure of the embodiment;

FIG. 2: the front schematic view of the box structure of the embodiment;

FIG. 3: the back of the box structure of the embodiment is schematically illustrated;

FIG. 4: the inside of the box structure of the embodiment is schematically shown;

FIG. 5: the structure schematic diagram of the load resistance module of the embodiment;

FIG. 6: part a of fig. 5 of the present embodiment is an enlarged schematic view;

wherein: 1, a box body; 2, a portable handle; 3, a box body bracket; 4-a CANSel deflector rod; 5-Trigger button; 6-power indicator light; 7-fault indicator light; 8-airbag load configuration interface; 9-air bag switch; 10-power supply interface; 11-box FUSE; 12-a power switch; 13-CAN communication interface; 14-external interface; 201-load resistance module; 202-main control circuit module; 203-module connecting terminal group; 204-high performance circuit conductor board; 2012-resistance mounting bracket; 2013 clamping loose leaves; 2014-salient points; 2015-loose-leaf buckle; 2016-snap groove; 2017-resistor card slot; 2021 — first IO module; 2022 — second IO module; 2023-MCU; 2024-power supply module; 2025-CAN communication module.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 to 6, the testing device of the present embodiment is mainly used for fault testing and debugging of an EDR controller, and includes an airbag simulation load module for simulating an airbag on a vehicle to be tested; the control unit module is used for storing the environmental parameters and fault information of the whole vehicle required by the test and controlling the alarm device on the test box to work; and the CAN communication module 2025 is used for connecting the control unit module with the upper computer and the EDR controller for data transmission.

The testing device comprises a box body 1, a portable handle 2 is arranged at the top of the box body 1, the carrying is convenient, and a box body support 3 is arranged at the bottom of the box body 1; the front panel of the box body is provided with a CAN shift lever 4 for adjusting the speed selection of a CAN channel, a Trigger key 5 triggered by a working mode and a power indicator lamp 6, and the tail part of the box body 1 is provided with a power plug interface 10, a box body FUSE11 (namely a FUSE), a power switch 12, a CAN communication interface 13 and a box body external interface 14 (connected with an EDR controller).

In order to simulate an airbag, an airbag simulation load module is further arranged on the box body 1 of the embodiment, an airbag load configuration interface 8 is arranged on the outer side surface of the box body 1, the airbag simulation load module comprises a plurality of module units, each module unit comprises a load resistance module 201 arranged inside the box body 1, and an airbag switch 9 (the airbag switch of the embodiment is an LED switch, namely, an LED indicator lamp for displaying the switch on or off is arranged on the switch) arranged on the airbag load configuration interface 8, and the load resistance module 201 is electrically connected with the airbag switch 9 and is controlled to be connected or disconnected through the LED switch.

After many times of experiments, resistance among the load resistance module 201 may melt and bond under the effect of strong current, and the influence is used, needs to be changed, and for convenient change, as shown in fig. 5-6, the load resistance module 201 of this embodiment includes resistance installing support 2012, is provided with the buckle structure of being convenient for change resistance on the resistance installing support 2012. The buckle structure comprises a clamping loose-leaf 2013, one end of the clamping loose-leaf 2013 is hinged to be connected to the resistor mounting support 2012, a loose-leaf buckle 2015 is arranged at the other end of the clamping loose-leaf 2013, a buckle groove 2016 corresponding to the loose-leaf buckle 2015 is formed in the resistor mounting support 2012, and the loose-leaf buckle 2015 is buckled in the buckle groove 2016 to clamp the resistor between the resistor mounting support 2012 and the clamping loose-leaf 2013. When the resistor needs to be replaced, the clamping hinges 2013 are opened, and the resistor can be replaced.

In order to stably clamp the resistor between the resistor mounting bracket 2012 and the clamping hinges 2013, in this embodiment, a resistor slot 2017 for placing the resistor is formed at the upper end of the resistor mounting bracket 2012. In addition, a protruding point 2014 extending towards the resistor clamping groove 2017 is arranged on one side, which is used for clamping the live page 2013 and faces the resistor mounting bracket 2012, and the protruding point 2014 tightly pushes the resistor to enable the resistor to be clamped and fixed in the resistor clamping groove 2017. The problem of unreliable connection caused by a resistor patch cord in engineering can be solved through the load resistor module 201, the complex problem of a resistor replacement inspection link can be effectively solved through a special resistor installation structure, and the test efficiency and the reliability are greatly improved.

The box body 1 is also internally provided with a control unit module which is used for storing the environmental parameters and the fault information of the whole vehicle required by the test and controlling the work of an alarm device on the test box. As shown in fig. 4, the control unit module includes a main control circuit module 202, a module connection terminal set 203, a high-performance circuit board 204, and corresponding sub-components. The tail wiring harness of the box body 1 is connected with the main control circuit module 202 through the high-performance circuit wiring board 204, so that the interference of external electromagnetic interference on a test system is reduced to the maximum extent; the reliable arrangement of the internal flat cables is realized among all circuit modules in the box body 1 through the module connecting terminal group 203, so that the tightness of the arrangement among all the modules is greatly optimized; the load resistor module 201 is arranged independently, so that the resistor can be quickly replaced and detected, and the troubleshooting efficiency is improved; the functional sub-blocks on the main control circuit module 202 are uniformly distributed to independently complete respective functions, and exchange data with the MCU2023 in the control unit module in real time, thereby improving the data exchange efficiency.

The power module 2024 in the box 1 is connected with an external direct current 12V power supply, the box 1 is connected with the EDR controller to be tested through the external interface 14, and data interaction is carried out with an upper computer through the CAN communication interface 13. During testing, the EDR controller to be tested needs to be externally connected with a 12V direct current power supply and a corresponding collision detection sensor.

When the test system is debugged, the control unit module performs information interaction with an upper computer and a tested EDR system through the CAN communication module 2025, the upper computer downloads the whole vehicle environment parameters and fault information required by the test to a storage area inside the MCU2023 of the control unit module in a specific form through a specific diagnosis protocol, and the tested EDR interacts internal data with the MCU2023 through the CAN communication module 2025. Meanwhile, the control unit module also needs to acquire information such as a control panel of the box body 1, an EDR controller to be tested, a test box fault signal and the like in real time through a data acquisition module in the first IO module 2021, and is used for configuring working parameters of the test box, the number of channels of the airbag simulation load module and system fault diagnosis; on the other hand, the control unit module can also drive the fault indicator light 7 to work through the driving output module in the first IO module 2021 by the internal fault diagnosis logic, so as to give an alarm to the user. When the test system works, the control unit module acquires different working modes through the data acquisition module in the second IO module 2022, and intermittently or continuously sends preset vehicle environment parameters to the EDR controller to be tested according to the different working modes; during the test process, the fault diagnosis inside the control unit module is also in operation monitoring all the time, so that the phenomenon that the experiment result deviates from the expectation due to the fault of the test system is avoided, and the experiment failure is caused. After the test is finished, the tester can prejudge whether the collision experiment is successful or not through the state of the fault indicator lamp 7; meanwhile, the upper computer can upload environmental parameters and fault information in the control unit module through a specific re-reading instruction, and the environmental parameters and the fault information are analyzed and used after the collision test. It should be noted that the airbag analog load module inside the test box is not directly connected to the MCU2023 of the control unit module, the MCU2023 only monitors the status of the channel configuration switch and controls the change of the LED indicator lights on the airbag switches 9, and the load configuration of the EDR controllers of different types can be implemented by 24 airbag switches 9 on the airbag load configuration interface 8.

The test box body can independently run the whole vehicle environment parameters downloaded by the upper computer and can also upload the environment parameters and fault information stored in the test box through the rereading instruction. The problem that a supplier is inconvenient due to the restriction of the integration degree of the whole vehicle in the process of developing and testing the EDR controller can be well solved, the cost of the real vehicle test of a whole vehicle factory is reduced, and the efficiency and the data accuracy of the EDR test parameter input of the detection certification mechanism are improved.

The embodiment can realize the quick switching of the EDR controllers with different communication speed architectures through the CANSel deflector rod 4, improves the adaptability of the test box body 1 under different communication architectures, and solves the problem caused by different parameter input interfaces in the process of testing the EDR controllers with different architectures of the whole vehicle factory, the supplier and the detection mechanism.

The testing arrangement of this embodiment still has the failure diagnosis function, can with the EDR controller and on the fault feedback to the fault indicator 7 of box 1 of the inside trouble of box 1, make things convenient for the tester to know the running condition by EDR system and box 1 fast, improved efficiency of software testing. Meanwhile, the fault information can also be stored in the MCU2023 of the control unit module in the test box body, and the corresponding fault code can be read by the upper computer when needed, so that the problem troubleshooting of engineering personnel is facilitated.

The trigger key 5 arranged on the box body 1 can realize three working modes of stopping, triggering and continuously sending data. Not only is the early-stage debugging work in the testing process convenient, but also the power consumption of the testing box body is reduced, and the service life of the box body is prolonged.

The working process of the invention is as follows: connecting the testing device, opening the upper computer software, reading the configuration parameters required by the testing device, and quickly building the application environment of the EDR controller parameter input testing system. According to the structure of the tested EDR controller ECU, the CANSel shift lever 4 is shifted to a communication speed position corresponding to the position; pressing down the power switch 12, the box body enters the program self-checking, and the fault indicator light 7 turns green after the system is confirmed to be correct; after reading the preset parameter file, the upper computer manually inputs the required parameters and the preset fault information according to the required test parameter conditions, and then downloads the parameter information of the upper computer into the MCU2023 of the control unit module in the test box body 1; before an EDR controller collision test, an air bag switch 9 is controlled on an air bag load configuration interface 8 according to the number of ECU channels, and the simulation load configuration consistent with the channels is completed; then, triggering Trigger keys 5 on the test box body, intermittently sending parameters to the EDR controller, and if the test system has no system fault, maintaining the fault indicator lamps 7 on the test box to be green; after the above operations are completed, the Trigger button 5 may be switched to the continuous operation mode, and at this time, the CAN communication module 2025 may continuously send parameters required for the test to the EDR controller, and then the collision test may be performed. After the collision test is finished, the EDR controller enters a fault state, and a fault indicator lamp 7 lights a red light to remind a tester of successful collision and the need of fault detection operation; at the moment, through the fault reading instruction and the data re-reading instruction on the upper computer, a tester can quickly identify the fault of the test system and test input parameters for subsequent debugging and analysis.

In the embodiment, the number of the channels of the ECU of the EDR controller can be flexibly configured and tested by setting the airbag load configuration interface 8; the damaged resistor can be quickly and reliably replaced through a special buckle structure; through the communication between the control unit module and the upper computer, the whole vehicle environmental parameter information set by the upper computer can be independently operated to the EDR controller, and the parameters stored in the EDR controller and the system operation fault information can be read again; the injection test of the environmental parameters of the EDR controller under different architectures can be realized by adjusting the CANSel deflector rod 4; the running state of the test system can be rapidly identified through the fault indicator lamp 7 on the interface of the box body 1; the function of stopping, intermittently and continuously sending data can be realized through the trigger key 5 on the interface of the box body 1. The test, research and development and authentication work of a whole vehicle factory, a supplier and a detection authentication mechanism are greatly facilitated, the operation and control are simple, the integration level is high, the test efficiency is greatly improved, the test environment is optimized, and the test accuracy is improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an integrated parameter input testing arrangement of EDR system, includes box (1), its characterized in that: the box body (1) is internally provided with:

the air bag simulation load module is used for simulating the condition of triggering point explosion of the air bag;

the airbag analog load module comprises a plurality of groups of module units, wherein each group of module units comprises an airbag switch (9) arranged on the box body (1), a display lamp used for displaying the opening or closing of the airbag switch (9) and a resistor which is arranged in the box body (1) and used for simulating an airbag and is electrically connected with the airbag switch (9); and the control unit module is in data connection with the indicator lamp and the CAN communication module.

2. The EDR system integration parameter input test apparatus of claim 1, wherein: the airbag analog load module comprises a resistor mounting bracket (2012) arranged in the box body (1); the resistor mounting bracket (2012) is provided with a buckle structure which is convenient for replacing the resistor; the buckling structure clamps the resistor on the resistor mounting bracket (2012).

3. The EDR system integration parameter input test apparatus of claim 2, wherein: the snap structure comprises a retaining leaflet (2013); one end of the clamping loose-leaf (2013) is hinged to the resistor mounting bracket (2012), and the other end of the clamping loose-leaf is provided with a loose-leaf buckle (2015); a buckle groove (2016) corresponding to the loose-leaf buckle (2015) is formed in the resistor mounting bracket (2012); the loose-leaf buckle (2015) is buckled in the buckle groove (2016) to clamp the resistor between the resistor mounting bracket (2012) and the clamping loose leaf (2013).

4. An EDR system integration parameter input test apparatus as claimed in claim 3, wherein: and a resistor clamping groove (2017) for placing a resistor is formed in the upper end of the resistor mounting bracket (2012).

5. The EDR system integration parameter input test device of claim 4, wherein: and one side of the clamping loose-leaf (2013) facing the resistor mounting bracket (2012) is provided with a convex point (2014) extending to the resistor clamping groove (2017).

6. The EDR system integration parameter input test apparatus of claim 1, wherein: and an external interface (14) connected with the EDR controller is arranged on the box body (1).

7. The EDR system integration parameter input test apparatus of claim 1, wherein: the box body (1) is provided with a portable handle (2).

8. The EDR system integration parameter input test apparatus of claim 1, wherein: the box body (1) is provided with a box body bracket (3).

9. A test method for performing a test using the test apparatus according to any one of claims 1 to 8, characterized in that: the control unit module is connected with the upper computer and the EDR controller through the CAN communication module, the upper computer transmits parameters required by testing and preset fault information to the control unit module, the airbag simulation load module is configured to enable the parameters to be consistent with an airbag channel of the EDR controller, the control unit module sends the parameters required by testing to the EDR controller after configuration is completed, then collision testing is carried out, after the collision testing is completed, the faults of the EDR controller are identified through the reading instruction of the upper computer, and follow-up debugging and analysis are carried out by combining the parameters required by testing.

10. A test method according to claim 9, characterized by: a method of configuring an airbag mock load module to conform to an airbag channel comprising: and selecting the same number of module units according to the number of channels of the electronic control unit of the EDR controller to be tested, and opening the airbag switch (9) of the corresponding module unit to complete the configuration consistent with the airbag channels.