• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: An air bag system inspecting method is provided to effectively judge quality of an air bag system by inspecting the air bag system based on real time self-diagnosis information of an air bag electronic control unit. CONSTITUTION: A sort of a vehicle is inspected(S10). Then, an air bag electronic control unit is synchronized with an inspection device(S11). After that, a record of fault codes in the air bag electronic control unit is searched by using the inspection device(S12). Then, the inspection device requests real time self-diagnosis information of the air bag electronic control unit(S13). After that, the inspection device compares the real time self-diagnosis information of the air bag electronic control unit with a predetermined reference value, thereby determining whether or not the air bag system has a fault(S14). The above record of the fault codes, real time self-diagnosis information, and fault of the air bag system are stored in a data server(S15).
    公开号:KR20040003135A
    申请号:KR1020020037495
    申请日:2002-06-29
    公开日:2004-01-13
    发明作者:최종식
    申请人:현대자동차주식회사；
    IPC主号:
    专利说明:

    Air bag system monitoring method
    [10] The present invention relates to a method for inspecting an airbag system, and more particularly, to an airbag system inspection method for quantitatively and objectively determining the quality of an airbag system in a finished vehicle state.
    [11] In general, an airbag system of a vehicle is a device that assists the safety of passengers in the event of a vehicle collision, and when the collision of the vehicle is detected, the airbag system is deployed to protect the driver from impact.
    [12] Such an airbag system is normally operated by an external fault of the airbag electronic control unit such as a fault inside the airbag electronic control unit or a defect in each ignition circuit, sensors, and wiring except the airbag electronic control unit. It may not work.
    [13] In the prior art system for checking the failure of the airbag system as shown in Figure 1, the inspection equipment 1 is connected to the airbag electronic control unit 2 through the communication line, the airbag electronic control The unit 2 measures the total resistance value R of the airbag ignition circuit 3 and performs self-diagnosis based on this. The total resistance value R is the sum of the wiring and connector resistances Rw1 and Rw2, the clock spring resistance Rc, the airbag module squib resistance value Rs, and the airbag module side connector terminal resistance Rt. .
    [14] At this time, the airbag electronic control unit 2 performs self-diagnosis based on the total resistance value R of the airbag ignition circuit 3 and the specifications as shown in FIG. 2. If it is determined that the resistance is under, 1.6Ω ~ 4.1Ω is normal, if more than 6.0Ω is judged as the resistance to generate a failure generating code (DTC) as shown in Figure 3, and inspecting such a defect generating code (DTC) Output to the equipment (1).
    [15] However, in the inspection system as described above, the inspection equipment determines that the airbag system is normal if the defect generation code (DTC), which is a self-diagnosis result of the airbag electronic control unit, does not exist, and the self-diagnosis of the airbag electronic control unit as described above. Although it varies by vehicle type, it takes about 400ms, but it takes a considerable time for the vehicle to be assembled and delivered to customers in inline. Since the defect is determined, not only active and active inspection of the airbag system is performed, but also objective and quantitative inspection of the quality of the airbag system of the finished vehicle is not performed.
    [16] In particular, the inspection method as described above can not accurately analyze the cause of the airbag-related problems occurring in the field, as well as incur excessive charge costs, and is clearly defined by the finished car maker regarding the product liability law to be applied in the future. There is a lack of evidence to present.
    [17] Accordingly, the present invention has been made to solve the above problems of the prior art, as the inspection equipment checks the abnormality of the airbag system based on the real-time self-diagnosis information of the airbag electronic control unit of the airbag system of the finished vehicle It is an object of the present invention to provide an airbag system inspection method capable of determining quality more quantitatively and objectively.
    [18] Air bag system inspection method according to the present invention for achieving the above object, the step of reading vehicle model information, synchronizing the air bag electronic control unit and the inspection equipment, the inspection equipment is defective in the air bag electronic control unit Inquiring the occurrence history of the generation code, the inspection equipment requesting and receiving real vehicle data at the time of self-diagnosis of the airbag electronic control unit in real time, and the inspection equipment comparing the actual vehicle data with a preset specification Determining whether the system quality is passed / failed; storing the generation / failure code of the failure code, actual vehicle data, and whether the airbag system quality is passed / failed in the data server; It characterized in that it comprises a step of outputting the pass / fail whether at a time.
    [1] 1 is a block diagram of an airbag inspection system according to the prior art,
    [2] 2 is a view for explaining an airbag inspection specification according to the prior art,
    [3] 3 is a table for explaining an airbag failure generation code according to the prior art;
    [4] 4 is a block diagram of an airbag inspection system for performing an airbag system inspection method according to the present invention;
    [5] 5 is a flow chart for explaining the airbag system inspection method according to the present invention,
    [6] 6 is a table for explaining a method for displaying an airbag system test result according to the present invention.
    [7] <Explanation of symbols for the main parts of the drawings>
    [8] 10: inspection equipment 20: vehicle (airbag electronic control unit)
    [9] 30: vehicle model server
    [19] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.
    [20] 4 is a block diagram of an airbag inspection system for performing the airbag system inspection method according to the present invention. As shown in FIG. 4, the test equipment 10 is connected to the airbag electronic control unit (not shown) of the vehicle 20 through a communication line and to the vehicle model server 30.
    [21] In the airbag system inspection method according to the present invention performed in the airbag inspection system configured as described above, as shown in Figure 5, the inspection equipment 10 reads the vehicle model information from the vehicle model server 30 in step (S10) Analyze the specification of the vehicle.
    [22] Subsequently, in step S11, the inspection equipment 10 is synchronized with the airbag electronic control unit provided in the vehicle 20, and in step S12, the inspection equipment 10 is defective in the airbag electronic control unit. The generation history of the code is inquired, and accordingly, the airbag electronic control unit outputs the generation history of the defective generation code to the inspection equipment 10. At this time, the failure generation code (DTC) is generated according to the result of comparing the total resistance value of each ignition circuit with a preset specification during the self-diagnosis of the airbag electronic control unit.
    [23] Subsequently, in step S13, the inspection equipment 10 requests real vehicle data at the time of self-diagnosis of the airbag electronic control unit in real time, and accordingly, the airbag electronic control unit inputs the real vehicle data into the inspection equipment 10 in real time. do. At this time, the actual vehicle data is data such as ignition circuit total resistance, voltage, current, ground level, supply voltage of the airbag electronic control unit, and the like.
    [24] Subsequently, in step S14, the inspection equipment 10 compares the actual vehicle data input from the airbag electronic control unit with the specifications preset for each vehicle type, and determines whether the airbag system passes or fails. In step S15, Information such as the occurrence history of the defect generation code, actual vehicle data, and whether the airbag system quality passes / fails is stored and managed in the data server.
    [25] In operation S16, the inspection results as described above, that is, information such as generation history of the defect generation code, actual vehicle data, and whether the airbag system is passed or failed are outputted as shown in FIG. 6 through a monitor or a printer. do.
    [26] As described above, according to the present invention, the inspection equipment can determine the quality of the airbag system of the finished vehicle more quantitatively and objectively by checking whether the airbag system is abnormal based on the real-time self-diagnosis information of the airbag electronic control unit. It works.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] Reading vehicle model information, synchronizing the airbag electronic control unit with the inspection equipment, and inspecting equipment inquiring the occurrence history of the defective code in the airbag electronic control unit; Requesting and receiving real vehicle data at the time of self-diagnosis in real time, and determining whether the inspection equipment passes / fails the quality of airbag system by comparing the actual vehicle data with a preset specification, and a history of generating a bad code And storing the pass / fail of the actual vehicle data and the airbag system quality in a data server, and outputting the occurrence history of the failure code, the actual vehicle data, and whether the pass / fail is at one time.
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    同族专利:
    公开号 | 公开日
    KR100435770B1|2004-06-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2002-06-29|Application filed by 현대자동차주식회사
    2002-06-29|Priority to KR10-2002-0037495A
    2004-01-13|Publication of KR20040003135A
    2004-06-10|Application granted
    2004-06-10|Publication of KR100435770B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR10-2002-0037495A|KR100435770B1|2002-06-29|2002-06-29|Air bag system monitoring method|
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