CN114859873A - Hardware-in-loop test system and test method for safety airbag control unit - Google Patents

Hardware-in-loop test system and test method for safety airbag control unit Download PDF

Info

Publication number
CN114859873A
CN114859873A CN202210687521.3A CN202210687521A CN114859873A CN 114859873 A CN114859873 A CN 114859873A CN 202210687521 A CN202210687521 A CN 202210687521A CN 114859873 A CN114859873 A CN 114859873A
Authority
CN
China
Prior art keywords
signal
control unit
air bag
collision
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
Application number
CN202210687521.3A
Other languages
Chinese (zh)
Inventor
舒伟斌
朱耀中
李仕锋
侯聚英
段龙杨
刘贝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangling Motors Corp Ltd
Original Assignee
Jiangling Motors Corp Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangling Motors Corp Ltd filed Critical Jiangling Motors Corp Ltd
Priority to CN202210687521.3A priority Critical patent/CN114859873A/en
Publication of CN114859873A publication Critical patent/CN114859873A/en
Pending legal-status Critical Current

Links

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
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
    • 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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24065—Real time diagnostics
    • 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]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Air Bags (AREA)

Abstract

The invention discloses an air bag control unit hardware-in-loop test system and a test method, the system comprises an upper computer, an HIL test cabinet, a PGI signal simulation card board and oscilloscope signal generation equipment, wherein the upper computer comprises a whole vehicle model, an air bag control unit model and an external collision simulator, the whole vehicle model and the air bag control unit model are respectively used for simulation analysis of the whole vehicle and the air bag control unit, the HIL test cabinet comprises a real-time processor, a CAN bus board card and a multifunctional I/O board card, the upper computer is in real-time communication with the HIL test cabinet through an Ethernet, and the HIL test cabinet is in communication connection with the air bag controller through a CAN bus. The invention can greatly shorten the project development period, reduce the experimental cost, verify various actual working conditions, effectively reduce the false triggering risk of the safety airbag and effectively protect the life and property safety of drivers and passengers.

Description

Hardware-in-loop test system and test method for safety airbag control unit
Technical Field
The invention relates to the technical field of automobile safety airbag control, in particular to a hardware-in-loop test system and a hardware-in-loop test method for a safety airbag control unit.
Background
Along with the rapid development of economy, the automobile output and sales volume and maintenance capacity are increased rapidly, the speed is accelerated, traffic jam occurs frequently, and traffic accidents occur frequently. The safety air bag is a key part for passive safety of the automobile, can effectively protect the safety of drivers and passengers, and reduces casualties. Airbags generally consist of sensors, control units, airbag modules and safety belts, as shown in the following figures: the sensor mainly comprises collision acceleration sensor, door pressure sensor, and the control unit is through constantly receiving inside and outside sensor signal, compare with the threshold value and judge whether the car sends the collision, and the gasbag module mainly comprises gaseous sender, air pocket etc. produces a large amount of gases fast and makes the air pocket inflation during the collision, and the safety belt effectively makes the passenger restrict on the seat, reduces and vehicle interior trim collision risk.
The safety airbag control unit is used as a control center of the whole safety airbag system, is very important for ignition control, fault diagnosis, communication, service and the like of the whole system, and the performance detection of the safety airbag control unit is very important.
The prior utility model discloses a "car air bag electronic control unit performance detection device", it has proposed a detection device to the air bag controller that adopts TMS320F2812 chip control unit, has great limitation, and current air bag control unit ignition algorithm development mainly relies on whole car collision experiment to carry out data acquisition and functional verification, the volume collision experiment that needs to carry out in the development process, sample car can't use after the collision, directly scrap, the experimental cost is high, the time cycle is long simultaneously, test sample car uniformity requires highly, the test uncontrollable risk is big in different stages; meanwhile, the collision accident form in real life is various, and real vehicle verification cannot be carried out completely.
Disclosure of Invention
The invention aims to provide an airbag control unit hardware-in-loop test system and a test method aiming at the defects of the prior art, by constructing a complete airbag control unit hardware-in-loop test system and combining a corresponding in-loop test method, the project development period can be greatly shortened, the experimental cost can be reduced, various practical working conditions can be verified, the correct triggering probability of an airbag is greatly improved, the life and property safety of drivers and passengers is protected, and the false triggering risk of the airbag can be effectively reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an air bag control unit hardware is at ring test system, includes host computer, HIL test rack, PGI signal simulation cardboard and oscilloscope signal generation equipment, the host computer includes whole car model, air bag control unit model and outside collision simulator, whole car model and air bag control unit model are used for whole car and air bag control unit's simulation analysis respectively, HIL test rack includes real-time processor, CAN bus integrated circuit board and multi-functional IO integrated circuit board, carry out real-time communication through the ethernet between host computer and the HIL test rack, HIL test rack passes through CAN bus and air bag controller communication connection.
And the external collision simulator is used for inputting the simulated external collision acceleration waveform to the PGI signal simulation board card in real time through the multifunctional I/O board card by the real-time processor.
The PGI signal simulation board is used for converting a CAN protocol sent by the CAN bus board into a PSI5 communication protocol special for airbag communication and sending the PSI5 communication protocol to the airbag controller.
And the oscilloscope signal generating equipment is used for acquiring internal collision acceleration waveforms, analyzing the internal collision acceleration waveforms to generate the same waveforms, and inputting the same waveforms into the safety airbag controller.
A hardware-in-loop testing method for an airbag control unit comprises the following steps:
s1, establishing a case database for testing according to the disclosed typical traffic accident and the real case fed back after sale;
s2, carrying out vehicle CAE analysis on the vehicle to be tested according to the test case database established in the step S1 to obtain an external collision signal and an internal collision signal of a typical collision position;
s3, carrying out preliminary judgment on the rationality of the obtained external collision signal, if the judgment is reasonable, inputting the external collision signal into an HIL test cabinet, and executing the step S4; if the judgment is not reasonable, returning to the step S2 to regenerate the external collision signal;
s4, converting an external collision CAN signal into a PSI5 communication protocol special for air bag control through a PGI signal simulation board card;
s5, performing preliminary judgment on the rationality of the obtained internal collision signal, if the judgment is reasonable, inputting the internal collision signal into oscilloscope signal generating equipment, and executing the step S6; otherwise, returning to step S2 to regenerate the internal collision signal;
s6, further generating an acceleration signal by the external collision signal obtained in the step S4 and the internal collision signal obtained in the step S5, and inputting the acceleration signal to the airbag controller;
s7, respectively recording the injury values of the dummy of the safety airbag controller in the ignition and non-ignition states;
and S8, comparing the injury values of the dummy obtained in the step S7 in the ignition and non-ignition states of the safety airbag controller to obtain an optimal control method of the safety airbag controller, so that the injury of the dummy after collision is reduced to the minimum.
Compared with the prior art, the invention has the beneficial effects that:
the invention can greatly shorten the project development period and reduce the experimental cost by constructing the safety airbag control unit hardware in-loop test system and combining the corresponding in-loop test method, and meanwhile, by establishing the test case database for the open typical traffic accident and the real case fed back after sale, various practical working conditions can be verified, the false triggering risk of the safety airbag can be effectively reduced, the correct triggering probability of the safety airbag is greatly improved, and the life and property safety of drivers and passengers is protected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the hardware-in-the-loop test system for an airbag control unit according to the present invention;
FIG. 2 is a flow chart of an airbag control unit hardware-in-the-loop test method of the present invention;
in the figure: 1. a whole vehicle model; 2. an airbag control unit model; 3. an external collision simulator; 4. a real-time processor; 5. a CAN bus board card; 6. a multifunctional I/O board card; 7. an internal crash acceleration waveform; 8. an oscilloscope signal generating device; 9. a PGI signal simulation board card; 10. an airbag controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
Example (b): see fig. 1-2.
As shown in fig. 1, the hardware-in-the-loop test system for the airbag control unit comprises an upper computer, an HIL test cabinet, a PGI signal simulation card board and an oscilloscope signal generation device, wherein the upper computer comprises a whole vehicle model 1, an airbag control unit model 2 and an external collision simulator, the whole vehicle model 1 and the airbag control unit model 2 are respectively used for simulation analysis of a whole vehicle and the airbag control unit, the HIL test cabinet comprises a real-time processor 4, a CAN bus card 5 and a multifunctional I/O card 6, the upper computer and the HIL test cabinet are in real-time communication through an ethernet, and the HIL test cabinet is in communication connection with an airbag controller 10 through a CAN bus.
The external collision simulator is used for inputting the simulated external collision acceleration waveform 3 to the PGI signal simulation board card 9 in real time through the real-time processor 4 and the multifunctional I/O board card 6.
The PGI signal simulation board 9 is used for converting a CAN protocol sent by the CAN bus board 5 into a PSI5 communication protocol special for airbag communication, and sending the PSI5 communication protocol to the airbag controller 10.
And the oscilloscope signal generating equipment 8 is used for acquiring the internal collision acceleration waveform 7, analyzing and generating the same waveform, and inputting the same waveform into the airbag controller 10.
Further, this embodiment also provides a method for testing the airbag control unit hardware-in-the-loop test system, which specifically includes the following steps:
s1, establishing a case database for testing according to the disclosed typical traffic accident and the real case fed back after sale;
s2, carrying out vehicle CAE analysis on the vehicle to be tested according to the test case database established in the step S1 to obtain an external collision signal and an internal collision signal of a typical collision position;
s3, carrying out preliminary judgment on the rationality of the obtained external collision signal, if the judgment is reasonable, inputting the external collision signal into an HIL test cabinet, and executing the step S4; if the judgment is not reasonable, returning to the step S2 to regenerate the external collision signal;
s4, converting an external collision CAN signal into a PSI5 communication protocol special for air bag control through a PGI signal simulation board card 9;
s5, performing preliminary judgment on the rationality of the obtained internal collision signal, if the judgment is reasonable, inputting the internal collision signal into oscilloscope signal generating equipment, and executing the step S6; otherwise, returning to step S2 to regenerate the internal collision signal;
step S6, further generating an acceleration signal by the external collision signal obtained in the step S4 and the internal collision signal obtained in the step S5, and inputting the acceleration signal to the airbag controller 10;
s7, respectively recording the injury values of the dummy of the safety airbag controller 10 in the ignition and non-ignition states;
and S8, comparing the injury values of the dummy obtained in the step S7 in the ignition and non-ignition states of the air bag controller 10 to obtain the optimal control method of the air bag controller 10, so that the injury of the dummy after collision is minimized.
In conclusion, the invention can greatly shorten the project development period and reduce the experimental cost by constructing the safety airbag control unit hardware in-loop test system and combining the corresponding in-loop test method, and meanwhile, various real working conditions can be verified by establishing the test case database for the disclosed typical traffic accidents and the real cases fed back after sales, so that the false triggering risk of the safety airbag can be effectively reduced, the correct triggering probability of the safety airbag is greatly improved, and the life and property safety of drivers and passengers is protected.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims (5)

1. The utility model provides an air bag control unit hardware is at ring test system, its characterized in that, includes host computer, HIL test rack, PGI signal simulation cardboard and oscilloscope signal generation equipment, the host computer includes whole car model (1), air bag control unit model (2) and outside collision simulator, whole car model (1) and air bag control unit model (2) are used for whole car and air bag control unit's emulation analysis respectively, HIL test rack includes real-time processor (4), CAN bus integrated circuit board (5) and multi-functional IO integrated circuit board (6), carry out real-time communication through the ethernet between host computer and the HIL test rack, HIL test rack passes through CAN bus and air bag controller (10) communication connection.
2. The airbag control unit hardware-in-the-loop test system of claim 1, wherein the external impact simulator is configured to input a simulated external impact acceleration waveform (3) to the PGI signal simulation board (9) through the multifunctional I/O board (6) via the real-time processor (4) in real time.
3. The airbag control unit hardware-in-the-loop test system of claim 1, wherein the PGI signal emulation board (9) is configured to convert a CAN protocol sent by the CAN bus board (5) into a PSI5 communication protocol dedicated to airbag communication, and send the PSI5 communication protocol to the airbag controller (10).
4. The hardware-in-the-loop test system for the airbag control unit according to claim 1, wherein the oscilloscope signal generating device (8) is used for acquiring an internal collision acceleration waveform (7), analyzing and generating the same waveform, and inputting the same waveform into the airbag controller (10).
5. A hardware-in-loop test method for an airbag control unit is characterized by comprising the following steps:
s1, establishing a case database for testing according to the disclosed typical traffic accident and the real case fed back after sale;
s2, carrying out vehicle CAE analysis on the vehicle to be tested according to the test case database established in the step S1 to obtain an external collision signal and an internal collision signal of a typical collision position;
s3, carrying out preliminary judgment on the rationality of the obtained external collision signal, if the judgment is reasonable, inputting the external collision signal into an HIL test cabinet, and executing the step S4; if the judgment is not reasonable, returning to the step S2 to regenerate the external collision signal;
s4, converting an external collision CAN signal into a PSI5 communication protocol special for air bag control through a PGI signal simulation board card (9);
s5, performing preliminary judgment on the rationality of the obtained internal collision signal, if the judgment is reasonable, inputting the internal collision signal into oscilloscope signal generating equipment, and executing the step S6; otherwise, returning to step S2 to regenerate the internal collision signal;
step S6, further generating an acceleration signal by the external collision signal obtained in the step S4 and the internal collision signal obtained in the step S5, and inputting the acceleration signal to the airbag controller (10);
s7, respectively recording the injury values of the dummy of the safety airbag controller (10) in the ignition and non-ignition states;
and S8, comparing the injury values of the dummy obtained in the step S7 in the ignition and non-ignition states of the air bag controller (10) to obtain an optimal control method of the air bag controller (10), so that the injury of the dummy after collision is reduced to the minimum.
CN202210687521.3A 2022-06-17 2022-06-17 Hardware-in-loop test system and test method for safety airbag control unit Pending CN114859873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210687521.3A CN114859873A (en) 2022-06-17 2022-06-17 Hardware-in-loop test system and test method for safety airbag control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210687521.3A CN114859873A (en) 2022-06-17 2022-06-17 Hardware-in-loop test system and test method for safety airbag control unit

Publications (1)

Publication Number Publication Date
CN114859873A true CN114859873A (en) 2022-08-05

Family

ID=82624646

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210687521.3A Pending CN114859873A (en) 2022-06-17 2022-06-17 Hardware-in-loop test system and test method for safety airbag control unit

Country Status (1)

Country Link
CN (1) CN114859873A (en)

Similar Documents

Publication Publication Date Title
CN106168541B (en) Automobile, diagnostic system and the method for generating vehicle diagnosis data
CN107031552A (en) A kind of car crass detection method and system
CN104792488B (en) Collide chassis simulation test device and method
CN105976449A (en) Remote automatic damage assessment and collision detection method and system for vehicle
CN114859873A (en) Hardware-in-loop test system and test method for safety airbag control unit
Kan et al. Crashworthiness evaluation using integrated vehicle and occupant finite element models
CN106371429A (en) Inside-vehicle equipment centralized detection method and system
CN118011996A (en) System and method for detecting loop of air bag control module
CN105320812A (en) Method for detecting tie-in strip and expansion adhesive materials in CAE pedestrian protection head collision
CN206431486U (en) A kind of safety air sac controller crash tests device
CN207319566U (en) A kind of safe automobile air bag Integrated Teaching experimental bench
CN116773134A (en) Power battery collision test method, device, equipment and medium
CN214309502U (en) Test system of automobile event data module
CN214224535U (en) Testing device for EDR system of automobile event data record
CN106230583A (en) Automobile ecu information monitoring system
CN114254436A (en) Method for analyzing influence of automobile front end structure design on collision signal
CN110631841B (en) Method for testing dynamic pressure of front airbag of automobile
Chou et al. Development of CAE simulated crash pulses for airbag sensor algorithm/calibration in frontal impacts
CN102122170A (en) Detection device for automotive airbag
CN1541871A (en) Single point three way safety air bag control device
CN203102000U (en) Performance testing device for electronic control unit of automotive airbag
CN114852003B (en) Vehicle window detonation control method, system, vehicle and medium
Singh et al. Vehicular impact analysis of driving for accidents using on board diagnostic II
CN115824669B (en) Method, system and medium for testing safety of vehicle structure
CN215116542U (en) ECU simulation detection system for vehicle tail gate test

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