CN116339283A - System and method for testing event data recording function of air bag controller - Google Patents
System and method for testing event data recording function of air bag controller Download PDFInfo
- Publication number
- CN116339283A CN116339283A CN202310305171.4A CN202310305171A CN116339283A CN 116339283 A CN116339283 A CN 116339283A CN 202310305171 A CN202310305171 A CN 202310305171A CN 116339283 A CN116339283 A CN 116339283A
- Authority
- CN
- China
- Prior art keywords
- test
- event data
- controller
- air bag
- airbag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title abstract description 13
- 238000010998 test method Methods 0.000 claims abstract 4
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims description 4
- 238000012886 linear function Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000011990 functional testing Methods 0.000 claims description 2
- 238000011161 development Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 238000005474 detonation Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses an air bag controller event data recording function test system and a test method, and the main design concept of the invention is that the HIL test cabinet simulates a real CAN network environment of the whole vehicle, so that the test environment is close to the real vehicle environment, and various working conditions possibly occurring on the real vehicle CAN be accurately reproduced. By using the I/O board card to simulate the analog electric element, the cost is lower than that of adopting a real tested element, and the test can be repeated, thereby greatly reducing the project development period and the test cost. The invention is based on the general HIL test cabinet to carry out the test, and can be easily realized by utilizing the mature software and hardware products in the existing market, and does not need to specially develop new software and hardware additionally, thereby having strong universality; meanwhile, the control working conditions of the air bags which possibly exist in practice can be verified, the correct recording capacity of the automobile event data recording function is improved, and the event occurrence process can be truly restored after the event occurs.
Description
Technical Field
The invention relates to the technical field of automobile controller testing, in particular to an airbag controller event data recording function testing system and an airbag controller event data recording function testing method.
Background
With the release and implementation of industry standards, the provision of M1 class vehicles with a standard-compliant vehicle event data recording system (EDR) has become a regulatory item, and each large automotive host factory needs to ensure that the produced vehicles pass the relevant regulatory certification. The technical information referred to here is referred to as follows: an automotive event data recording system (EDR) is comprised of one or more onboard electronic modules, and has the functions of monitoring, collecting and recording data of the vehicle and occupant protection systems before, during and after the occurrence of a crash event. The EDR controller is mainly used for monitoring, collecting and recording the vehicle-mounted electronic module of time series data in the collision event occurrence process.
In the automobile production research and development process, function detection is required to be carried out on the EDR controller, so that the EDR controller can record the real state of the automobile in a collision event according to the legal requirements when the automobile collides, such as the speed of the automobile, the position of an accelerator pedal, the rotating speed of an engine and the like, and the accident can be conveniently researched and traced. In order to ensure the reality and reliability of EDR data record, a comprehensive and effective performance test is required to be carried out on an automobile event data record system (EDR) in the research and development stage of automobile products.
The technical scheme of the existing test system mainly comprises a test box, a diagnostic instrument, an EDR module and a CANoe module; the EDR module comprises an EDR controller; the CANoe module is used for providing an analog vehicle bus signal received by the EDR controller for the test box; the EDR module is used for recording test data of the test box; the diagnostic instrument is used for reading test data recorded by the EDR module; the test box is arranged on the impact table and is used for simulating peripheral signals and loads of the EDR controller in a vehicle collision state; the peripheral sensor and the external load are simulated by manufacturing the test box, the vehicle bus signal is simulated by the CANOE module, and the automobile event data recording system is verified by the impact table, so that the recording of the vehicle running data is ensured.
The prior testing method comprises the steps of transmitting an original parameter file to a testing computer, identifying and processing the original parameter file by the testing computer through built-in testing software, forming a CAN signal and transmitting the CAN signal to an automobile event data recording system testing box, wherein the automobile event data recording system testing box is connected with a signal output device of an air bag controller control module through a connector; the vibration table generates actual acceleration to trigger the test box of the automobile event data recording system to record test result data; and the test computer acquires test result data, compares whether the test result data file is consistent with the original parameter file, and judges whether the automobile event data recording system is compliant.
In the above-mentioned existing scheme, when the EDR module is integrated on the airbag controller, the test box of the test system is not suitable for testing the airbag controller, in addition, the existing test function also needs to be developed independently, and has no operability and universality on the premise of undefined basic architecture and implementation method, and the generated CAN signal belongs to an independent CAN signal, and has a large gap with a complex real vehicle CAN network environment. For some special environment tests, such as vehicle speed change, engine speed change, auxiliary driving module fault and the like, the dynamic test environment cannot be built, and obvious limitation is brought to automobile function development.
Disclosure of Invention
In view of the foregoing, the present invention is directed to a system and a method for testing an event data recording function of an airbag controller, so as to solve the above-mentioned technical problems.
The technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides an airbag controller event data recording function test system, comprising:
the system comprises an upper computer, an HIL test cabinet, a collision bench and a CAN analyzer;
the upper computer presets the HIL test cabinet, the test application program of the CAN analyzer and the analysis program of the automobile event data recording function;
the HIL test cabinet includes: real time, bus board and I/O board;
the collision rack comprises an air bag controller with a built-in automobile event data recording module and a collision sensor connected with the air bag controller;
the upper computer is communicated with the HIL test cabinet through an Ethernet, and the HIL test cabinet is respectively communicated with the safety air bag controller and the CAN analyzer through a CAN bus;
the upper computer is used for controlling real time to drive the bus board card and the I/O board card to respectively execute the function of analog simulation and analyzing CAN message data of the CAN analyzer; the bus board card is used for simulating the CAN network environment of the whole vehicle connected with the safety airbag controller; the I/O board card is used for simulating the state of an electrical element connected with the air bag controller.
In at least one possible implementation, the I/O board is used to simulate the state of an airbag, a curtain, and a belt buckle switch to which an airbag controller is connected.
In at least one possible implementation, the airbag and the airbag curtain are simulated by analog resistors, and the belt buckle switch is simulated by analog switching circuits.
In at least one possible implementation, the number of collision sensors is determined by the safety configuration of the vehicle model under test.
The invention provides a method for testing the event data recording function of an air bag controller, which comprises the following steps:
setting the state of an electric element connected with the air bag controller through an upper computer according to a preset test case;
determining a whole vehicle CAN network to be simulated according to a tested vehicle type, and setting CAN signals associated with testing based on the test case;
the real-time machine in the HIL test cabinet receives an instruction of the upper computer to drive the bus board card and the I/O board card in the HIL test cabinet to combine the state of the electrical element and the CAN signal, and simulate the electrical element and the whole vehicle CAN network connected with the safety air bag controller;
the collision rack is knocked manually, and an automobile event data recording function integrated in the air bag controller is triggered to operate;
the upper computer acquires CAN signal data recorded by the automobile event data recording function through a CAN analyzer;
reading and analyzing the CAN signal data by the upper computer;
and comparing the analysis result with a preset event state in the test case, and judging whether the tested event recording function is compliant.
In at least one possible implementation manner, the parsing the CAN signal data includes:
converting event record data represented by the CAN message into a target data system format through a form application program;
inquiring a set standard to obtain an element arrangement rule and a conversion formula of event record data;
if the conversion formula is a linear function, directly converting by adopting a form application program; if the conversion formula is ASCII code, the conversion is performed through a preset function of the form application program.
In at least one possible implementation thereof, the CAN signal associated with the test comprises continuously varying data of one or more of the following: vehicle speed, accelerator pedal position, engine speed.
Compared with the prior art, the invention has the main design concept that the HIL test cabinet simulates the real CAN network environment of the whole vehicle, so that the test environment is close to the real vehicle environment, and various working conditions possibly appearing on the real vehicle CAN be accurately reproduced. By using the I/O board card to simulate the analog electric element, the cost is lower than that of adopting a real tested element, and the test can be repeated, thereby greatly reducing the project development period and the test cost. Based on the above, the simulated electrical element can adjust the resistance value and the switch state according to the test requirement, and the change condition of the load current and the voltage of the electrical element in the test can be monitored through the I/O board card, so that the detonation working conditions of the simulated safety airbag and the safety air curtain can be monitored. The invention is based on the general HIL test cabinet to carry out the test, and can be easily realized by utilizing the mature software and hardware products in the existing market, and does not need to specially develop new software and hardware additionally, thereby having strong universality; meanwhile, the control working conditions of the air bags which possibly exist in practice can be verified, the correct recording capacity of the automobile event data recording function is improved, and the event occurrence process can be truly restored after the event occurs.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of an airbag controller event data recording functional test system according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for testing an event data recording function of an air bag controller according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
The present invention proposes an embodiment of an airbag controller event data recording function test system, specifically, as shown in fig. 1, including: the system comprises an upper computer, a hardware-in-loop (HIL) test cabinet, a collision bench and a CAN analyzer. The upper computer presets the HIL test cabinet, the test application program of the CAN analyzer and the analysis program of the automobile event data recording function.
The HIL test cabinet specifically comprises: real time, bus board and I/O board; the crash bench includes an airbag controller with a built-in vehicle event data recording module and a crash sensor coupled to the airbag controller.
The upper computer and the HIL test cabinet are communicated in real time through the Ethernet, the HIL test cabinet is respectively communicated with the air bag controller and the CAN analyzer through the CAN bus, and the power supply of the air bag controller CAN be provided by the HIL test cabinet.
Specifically, the HIL test cabinet in the upper computer and the application software of the CAN analyzer CAN be provided by the equipment provider used; the EDR analysis program may be implemented in a programming manner, which will be described later.
In actual operation, the upper computer is used for controlling real time to drive the bus board card and the I/O board card to respectively execute the function of analog simulation. The bus board card is used for simulating the CAN network environment of the whole vehicle connected with the safety airbag controller; the I/O board card may simulate the state of electrical components connected to the airbag controller, such as the state of electrical components of the airbag, the curtain, and the belt buckle switch, and specifically, the airbag and the curtain may be simulated by the simulated resistor, and the belt buckle switch may be simulated by the simulated circuit switch.
With regard to the aforementioned airbag controller and collision sensors, they may be fixed to a bench in actual operation, and the number of collision sensors may be determined according to the safety configuration of the vehicle type under test. The crash bench preferably adopts a relatively small and light structure, so that the simulated crash acceleration after knocking the bench can easily reach the threshold value of the trigger sensor, and the EDR integrated in the air bag controller can be smoothly triggered.
As the CAN analyzer, a CAN bus analyzer capable of reading a diagnostic message of 111 frames or more at a time is preferably used, for example, but not limited to VN1600 of Vector company, intraork-VBA of longitude and latitude constant company, and the like. Since usually at least 772 bytes of EDR recorded data are needed, the CAN analyzer obtains the EDR recorded data by sending a diagnostic command, and if a sufficient amount of message information cannot be obtained, partial deletion of the EDR data is caused. In some preferred embodiments, the CAN analyzer is further configured to import CAN message data into a table program, such as Excel, to facilitate obtaining the vehicle event record data using an EDR analysis program compiled by Excel.
The HIL test cabinet simulates a real CAN network environment of the whole vehicle, so that the test environment is close to a real vehicle environment, and various working conditions possibly appearing on the real vehicle CAN be accurately reproduced. By using the I/O board card to simulate the analog electric element, the cost is lower than that of adopting a real tested element, and the test can be repeated, thereby greatly reducing the project development period and the test cost. Based on the above, the simulated electrical element can adjust the resistance value and the switch state according to the test requirement, and the change condition of the load current and the voltage of the electrical element in the test can be monitored through the I/O board card, so that the detonation working conditions of the simulated safety airbag and the safety air curtain can be monitored. Therefore, the invention can remarkably widen the test range of the automobile event data recording system (EDR) and make the test content more complete.
Corresponding to the above system embodiments, the present invention further provides an embodiment of a method for testing an event data recording function of an air bag controller, as shown in fig. 2, including:
step S1, setting the states of electrical elements connected with an air bag controller through an upper computer according to a preset test case, wherein the states of the electrical elements comprise but are not limited to an air bag, an air curtain, a safety belt buckle switch and the like;
step S2, simulating a whole vehicle CAN network according to a test vehicle type, and setting CAN signals related to the test based on the test case, wherein the CAN signals comprise but not limited to CAN signals such as vehicle speed, accelerator pedal position, engine speed and the like;
s3, the real-time machine in the HIL test cabinet receives an instruction of the upper computer to drive the bus board card and the I/O board card in the HIL test cabinet to combine the state of the electrical element and the CAN signal, and simulate the electrical element and the whole vehicle CAN network which are actually connected by the air bag controller;
s4, manually knocking the collision rack to trigger the operation of the automobile event data recording function; specifically, the impact bench may be struck during testing with a striking hammer (or surrogate) such that the acceleration of the airbag controller and impact sensor reaches a trigger threshold.
Step S5, the upper computer obtains CAN signal data (from the whole vehicle CAN network simulated by the simulation) recorded by the automobile event data recording function through a CAN analyzer;
s6, reading and analyzing the CAN signal data by the upper computer;
and S7, comparing the analysis result with a preset state in the test case, and judging whether the tested function is compliant.
It may be additionally noted that, regarding the parsing of the CAN signal data, in some preferred embodiments, the present invention provides a simple and easy implementation method through a form application Excel. It may be noted here that the basis of all EDR analyses is the current industry standard, such as "automobile event data recording system", EDR data element arrangement based on CAN line communication, etc.
Thus, first, the event record data represented by CAN messages CAN be converted from 16 to decimal format by the function HEX2DEC in Excel.
Then, inquiring a set standard to obtain element arrangement rules and conversion formulas of event record data;
if the conversion formula is a linear function, directly converting through a corresponding function of Excel; if the conversion formula is ASCII code, the conversion is carried out through the CHAR function of Excel.
In addition, when an Excel-based analysis program is compiled, the continuous variation signals such as delta-V, vehicle speed, accelerator pedal position, engine speed and the like in the CAN message CAN be displayed in the form of an Excel chart, so that the EDR recorded data CAN be conveniently watched and consulted.
In summary, the main design concept of the invention is that the HIL test cabinet simulates the real CAN network environment of the whole vehicle, so that the test environment is close to the real vehicle environment, and various working conditions possibly occurring on the real vehicle CAN be accurately reproduced. By using the I/O board card to simulate the analog electric element, the cost is lower than that of adopting a real tested element, and the test can be repeated, thereby greatly reducing the project development period and the test cost. Based on the above, the simulated electrical element can adjust the resistance value and the switch state according to the test requirement, and the change condition of the load current and the voltage of the electrical element in the test can be monitored through the I/O board card, so that the detonation working conditions of the simulated safety airbag and the safety air curtain can be monitored. The invention is based on the general HIL test cabinet to carry out the test, and can be easily realized by utilizing the mature software and hardware products in the existing market, and does not need to specially develop new software and hardware additionally, thereby having strong universality; meanwhile, the control working conditions of the air bags which possibly exist in practice can be verified, the correct recording capacity of the automobile event data recording function is improved, and the event occurrence process can be truly restored after the event occurs.
In the embodiments of the present invention, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relation of association objects, and indicates that there may be three kinds of relations, for example, a and/or B, and may indicate that a alone exists, a and B together, and B alone exists. Wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of the following" and the like means any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c may represent: a, b, c, a and b, a and c, b and c or a and b and c, wherein a, b and c can be single or multiple.
The construction, features and effects of the present invention are described in detail according to the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention, and it should be understood that the technical features of the above embodiment and the preferred mode thereof can be reasonably combined and matched into various equivalent schemes by those skilled in the art without departing from or changing the design concept and technical effects of the present invention; therefore, the invention is not limited to the embodiments shown in the drawings, but is intended to be within the scope of the invention as long as changes made in the concept of the invention or modifications to the equivalent embodiments do not depart from the spirit of the invention as covered by the specification and drawings.
Claims (7)
1. An airbag controller event data logging functional test system, comprising: the system comprises an upper computer, an HIL test cabinet, a collision bench and a CAN analyzer;
the upper computer presets the HIL test cabinet, the test application program of the CAN analyzer and the analysis program of the automobile event data recording function;
the HIL test cabinet includes: real time, bus board and I/O board;
the collision rack comprises an air bag controller with a built-in automobile event data recording module and a collision sensor connected with the air bag controller;
the upper computer is communicated with the HIL test cabinet through an Ethernet, and the HIL test cabinet is respectively communicated with the safety air bag controller and the CAN analyzer through a CAN bus;
the upper computer is used for controlling real time to drive the bus board card and the I/O board card to respectively execute the function of analog simulation and analyzing CAN message data of the CAN analyzer; the bus board card is used for simulating the CAN network environment of the whole vehicle connected with the safety airbag controller; the I/O board card is used for simulating the state of an electrical element connected with the air bag controller.
2. The airbag controller event data logging function test system of claim 1, wherein the I/O board card is configured to simulate the status of an airbag, a curtain, and a belt buckle switch to which an airbag controller is connected.
3. The airbag controller event data logging function test system of claim 2, wherein the airbag and the airbag curtain are emulated by an analog resistor and the seat belt buckle switch is emulated by an analog switch circuit.
4. The airbag controller event data logging function test system of claim 2, wherein the number of crash sensors is determined by a safety configuration of a vehicle type under test.
5. An airbag controller event data recording function test method, comprising:
setting the state of an electric element connected with the air bag controller through an upper computer according to a preset test case;
determining a whole vehicle CAN network to be simulated according to a tested vehicle type, and setting CAN signals associated with testing based on the test case;
the real-time machine in the HIL test cabinet receives an instruction of the upper computer to drive the bus board card and the I/O board card in the HIL test cabinet to combine the state of the electrical element and the CAN signal, and simulate the electrical element and the whole vehicle CAN network connected with the safety air bag controller;
the collision rack is knocked manually, and an automobile event data recording function integrated in the air bag controller is triggered to operate;
the upper computer acquires CAN signal data recorded by the automobile event data recording function through a CAN analyzer;
reading and analyzing the CAN signal data by the upper computer;
and comparing the analysis result with a preset event state in the test case, and judging whether the tested event recording function is compliant.
6. The airbag controller event data logging function test method of claim 5, wherein the parsing the CAN signal data comprises:
converting event record data represented by the CAN message into a target data system format through a form application program;
inquiring a set standard to obtain an element arrangement rule and a conversion formula of event record data;
if the conversion formula is a linear function, directly converting by adopting a form application program; if the conversion formula is ASCII code, the conversion is performed through a preset function of the form application program.
7. The airbag controller event data logging function test method of claim 5 or 6, wherein the CAN signal associated with the test comprises one or more of the following continuously varying data: vehicle speed, accelerator pedal position, engine speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310305171.4A CN116339283A (en) | 2023-03-24 | 2023-03-24 | System and method for testing event data recording function of air bag controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310305171.4A CN116339283A (en) | 2023-03-24 | 2023-03-24 | System and method for testing event data recording function of air bag controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116339283A true CN116339283A (en) | 2023-06-27 |
Family
ID=86892553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310305171.4A Pending CN116339283A (en) | 2023-03-24 | 2023-03-24 | System and method for testing event data recording function of air bag controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116339283A (en) |
-
2023
- 2023-03-24 CN CN202310305171.4A patent/CN116339283A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110609491B (en) | Semi-physical simulation accident identification method and system for whole electric vehicle controller | |
| CN202331190U (en) | Movable type comprehensive test table of electric power steering controller | |
| CN112747941A (en) | Testing device and testing method for EDR system of automobile event data record | |
| CN206178466U (en) | New energy automobile vehicle control unit testing arrangement | |
| CN111459616B (en) | Test method, device, equipment and storage medium | |
| CN104184525B (en) | Digital-flight-data-acquisition-unit-based test platform and test method of signal transmission device | |
| CN207424670U (en) | A kind of program-controlled direct fault location case of pure electric vehicle controller | |
| CN103149033A (en) | Offline fault detection method for electromobile | |
| CN113835410A (en) | Finished automobile testing method and system based on signal simulation device | |
| CN112304640A (en) | OBD (on-board diagnostics) testing system and method | |
| CN107748560A (en) | A kind of program control direct fault location case of pure electric vehicle controller | |
| CN202267836U (en) | Bus simulation testboard for heavy-duty car | |
| CN116339283A (en) | System and method for testing event data recording function of air bag controller | |
| CN108871808A (en) | A kind of wheel speed sensors simulator | |
| CN114486278A (en) | Three-electric-system integration test method and test stand for pure electric vehicle | |
| JP2007507765A (en) | System and method for testing a control process for a vehicle | |
| CN207529222U (en) | A kind of fault diagnosis system | |
| CN114942601A (en) | Simulation test equipment and method for airbag electronic control system | |
| CN201527455U (en) | Under-line detection device of a vehicle electric apparatus system for a vehicle production line | |
| CN214224535U (en) | Testing device for EDR system of automobile event data record | |
| CN106840640B (en) | The analogue system and method for vehicle airbag | |
| CN203084547U (en) | Test system of distance-increasing electric vehicle controller | |
| CN111142497A (en) | Test system and method for vehicle-mounted application software | |
| CN211403232U (en) | Hardware-in-loop test system of vehicle control unit | |
| Wagner | Failure mode testing tool set for automotive electronic controllers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |