CN215576276U - Air bag control unit testing arrangement and test system - Google Patents
Air bag control unit testing arrangement and test system Download PDFInfo
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- CN215576276U CN215576276U CN202121993332.6U CN202121993332U CN215576276U CN 215576276 U CN215576276 U CN 215576276U CN 202121993332 U CN202121993332 U CN 202121993332U CN 215576276 U CN215576276 U CN 215576276U
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000004088 simulation Methods 0.000 abstract description 5
- 239000013256 coordination polymer Substances 0.000 description 3
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Abstract
The utility model discloses a test device and a test system for an air bag control unit, wherein a PCB adapter box, a variable chip resistor and the air bag control unit are arranged; the PCB adapter box is internally provided with an air bag loop, the variable chip resistor is arranged on the PCB adapter box and connected with the air bag loop, and the air bag control unit is connected with the air bag loop and the variable chip resistor to form a test loop; through variable chip resistor simulation air bag for air bag control unit does not report the trouble, thereby can not influence the test, through variable chip resistor simulation air bag, need not to demolish each air bag simultaneously, saves man-hour raise the efficiency, has avoided omitting to demolish air bag and has caused danger to the tester, has improved the security, but wide application in automotive technology field.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to a test device and a test system for an air bag control unit.
Background
Nowadays, passenger vehicles are required to be equipped with an event data recording system (EDR) capable of recording data information such as vehicle running speed, braking state and the like when a specific event such as collision occurs, and for example, data such as longitudinal Delta-V, maximum recorded longitudinal Delta-V, time to reach maximum recorded longitudinal Delta-V, service brake on or off (or brake pedal position), vehicle speed and vehicle identification code need to be recorded through an airbag control UNIT (SRS UNIT). When the recording effect of the data is tested, the airbag control UNIT (SRS UNIT) needs to be knocked or swiped quickly, so as to trigger the recording of the recorded data. However, if the safety airbag is directly triggered in this way, the safety airbag is detonated, so that life threat is caused to testing personnel, and nowadays, in order to solve the problem, the safety airbag on the whole vehicle is generally required to be unplugged from a wire harness, an airbag loop is disconnected, and then the test is carried out, however, the operation still has the risk of omitting the disassembly of the safety airbag, so that life threat is caused to the testing personnel, and the safety is low.
SUMMERY OF THE UTILITY MODEL
To solve the above technical problems, the present invention aims to: provided are an airbag control unit test device and a test system which improve safety.
The technical scheme adopted by the utility model is as follows:
an airbag control unit testing apparatus comprising: the PCB adapter box, the variable chip resistor and the safety airbag control unit; the PCB switching box is internally provided with an air bag loop, the variable chip resistor is arranged on the PCB switching box and connected with the air bag loop, and the air bag control unit is connected with the air bag loop and the variable chip resistor to form a test loop.
Further, the airbag circuit is connected with the airbag control unit through an extension harness.
Further, the PCB switching box is provided with a first connector module, and the first connector module is connected with the safety airbag loop and connected with the safety airbag control unit through the extension wiring harness.
Further, the airbag control unit testing device further comprises a second connector module, and the first connector module is connected with the extension wire harness through the second connector module.
Further, the air bag control unit test kit still includes a third connector module, the extension pencil passes through the third connector module is connected the air bag control unit.
Further, the PCB adapter box is provided with a fourth connector module, and the fourth connector module is connected with a vehicle body side wiring harness of an automobile and the safety airbag loop.
Further, the variable patch resistance includes TMC3K38 series, TMC3K3R series, TMC2K2 series, TMC3K4J series, or TMC3KJ series.
The embodiment of the utility model also provides a test system which comprises the safety air bag control unit test device.
The utility model has the beneficial effects that: the PCB adapter box, the variable chip resistor and the safety airbag control unit are arranged; the PCB adapter box is internally provided with an air bag loop, the variable chip resistor is arranged on the PCB adapter box and connected with the air bag loop, and the air bag control unit is connected with the air bag loop and the variable chip resistor to form a test loop; through variable chip resistor simulation air bag for air bag the control unit does not report the trouble, thereby can not influence the test, through variable chip resistor simulation air bag, need not to demolish each air bag simultaneously, saves man-hour raise the efficiency, has avoided omitting to demolish air bag and has caused danger to the tester, has improved the security.
Drawings
Fig. 1 is an electronic block diagram of an airbag control unit testing apparatus according to the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," and the like in the description and claims of this application and in the drawings are used solely to distinguish one from another and are not used to describe a particular sequence. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The utility model will be further explained and explained with reference to the drawings and the embodiments in the description.
Referring to fig. 1, an embodiment of the present invention provides an airbag control unit testing apparatus, including a PCB adapter, a variable chip resistor, an airbag control unit (SRS UNI T), a second connector module, a third connection module, and an extension harness.
Referring to fig. 1, in the embodiment of the present invention, an airbag loop is disposed in a PCB adapter box, and it should be noted that the airbag loop refers to a loop in which an airbag is connected to an automobile, which is not described in detail for the existing loop, and the airbag loop can be placed in the PCB adapter box after a tester analyzes a whole automobile loop. Optionally, a first connector module and a fourth connector module are disposed on the PCB junction box. In the embodiment of the utility model, the first connector module is arranged on the right side of the PCB adapter box, is connected with the safety airbag loop and is connected with the safety airbag control unit (SRS UNIT) through the extension wire harness; the fourth connector module is connected with a body side wire harness and an airbag loop of the automobile. Note that the vehicle-body-side wire harness refers to a wire harness that is originally mounted on an automobile. Optionally, the first connector module includes two first connectors, and in other embodiments, one or more first connectors may be included, which is not described herein again. Similarly, the fourth connector module includes two fourth connectors, and in other embodiments, one or more fourth connectors may be included, which is not described herein again. In the embodiment of the utility model, the airbag circuit is connected with the airbag control unit (SRS UNIT) through the extension harness, specifically, the airbag circuit is connected with the first connector module, the first connector module is connected with the extension harness through the second connector module, and the extension harness is connected with the third connector module, so that the extension harness is connected with the airbag control unit (SRS UNIT) through the third connector module.
In the embodiment of the utility model, the extension wire harness is arranged, so that the operations of whipping, knocking and the like on the safety airbag control unit (SRS UNIT) are convenient during testing, and the convenience is improved.
Referring to fig. 1, in an embodiment of the present invention, the second connector module includes two second connectors, and in other embodiments, one or more second connectors may be included; the third connector module includes two third connectors, and in other embodiments, one or more third connectors may be included, which is not described herein again. Specifically, the extension harness has a first connection end, a second connection end, a third connection end and a fourth connection end, each first connector is correspondingly connected with a second connector, one second connector is correspondingly connected with the first connection end of the extension harness, and the other second connector is correspondingly connected with the second connection end of the extension harness; one of the third connectors is connected to the third connection end of the extension harness and the airbag control unit (SRS unit) correspondingly, and the other third connector is connected to the fourth connection end of the extension harness and the airbag control unit (SRS unit) correspondingly.
Alternatively, the first, second and third connectors may be of the type CP 104P 025ML PF/104P (SRS), and the fourth connector may be of the type CP 43P 025(0.64) FLLIF (SRS) or CP 57P 025(0.64) FLLIF (SRS).
Referring to fig. 1, in the embodiment of the present invention, the variable chip resistor is disposed in the PCB junction box, the variable chip resistor may be one or more, the variable chip resistor is connected to the airbag loop, and the airbag control unit (SRS UNI T) is connected to the airbag loop and the variable chip resistor through the third connector, the extension harness, the second connector, and the first connector, so as to form a test loop, and perform a test on the airbag control unit (SRS UNI T).
Referring to fig. 1, in the embodiment of the utility model, because different airbags have different resistance values, the adjustable variable chip resistor is set on the PCB adapter box, so that the simulation requirements of different airbags of different vehicle types can be met, and the method is convenient and has strong applicability. In addition, after the connector of the air bag on the automobile is pulled out, for example, after the connection of the fourth connector is disconnected, the variable chip resistor is arranged on the PCB adapter box, the air bag is simulated by the resistance value, and the variable chip resistor is connected with the air bag control unit (SRS UNIT) and the air bag loop to form a test loop, so that the air bag control unit (SRS UNIT) can not report faults, specifically: a loop coming out of the safety airbag control unit (SRS UNIT) returns to the safety airbag control unit (SRS UNIT) after passing through the variable chip resistor, and the safety airbag control unit (SRS UNIT) can be considered to be connected with the safety airbag due to the passing through the variable chip resistor, so that faults can not be reported, and the test process can be smoothly carried out.
Alternatively, the variable chip resistance may employ a TMC3K38 series, a TMC3K3R series, a TMC2K2 series, a TMC3K4J series, or a TMC3KJ series.
According to the test device for the safety airbag control unit, the variable chip resistor is arranged in the PCB adapter box provided with the safety airbag loop, each safety airbag does not need to be disassembled, a large number of working hours for disassembling vehicles are saved, meanwhile, the risk that the disassembly of the safety airbag threatens life of testers is avoided, the safety coefficient of the test is increased, and the potential safety hazard is reduced; in addition, the resistors with corresponding resistance values do not need to be added to the pulled-down airbag connecting wire harness like the existing scheme, so that the failure reporting of an airbag control unit (SRS UNIT) is prevented, the risk that the added resistors fall off during the test period to influence the test result is avoided, and the test efficiency and the test safety are improved. Moreover, the extension wire harness is arranged, so that the operations such as swinging and knocking on an air bag control unit (SRS UNIT) are facilitated during testing, and the convenience is improved.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (8)
1. An airbag control unit testing apparatus, comprising: the PCB adapter box, the variable chip resistor and the safety airbag control unit; the PCB switching box is internally provided with an air bag loop, the variable chip resistor is arranged on the PCB switching box and connected with the air bag loop, and the air bag control unit is connected with the air bag loop and the variable chip resistor to form a test loop.
2. An airbag control unit testing apparatus as defined in claim 1 wherein: the safety airbag loop is connected with the safety airbag control unit through an extension wire harness.
3. An airbag control unit testing device as defined in claim 2 wherein: the PCB switching box is provided with a first connector module, and the first connector module is connected with the safety airbag loop and connected with the safety airbag control unit through the extension wiring harness.
4. An airbag control unit testing apparatus as defined in claim 3 wherein: the safety air bag control unit testing device further comprises a second connector module, and the first connector module is connected with the extension wire harness through the second connector module.
5. An airbag control unit testing device as defined in claim 2 wherein: the safety airbag control unit testing device further comprises a third connector module, and the extension wire harness is connected with the safety airbag control unit through the third connector module.
6. An airbag control unit testing apparatus as defined in claim 1 wherein: the PCB adapter box is provided with a fourth connector module, and the fourth connector module is connected with a vehicle body side wire harness of an automobile and the safety airbag loop.
7. An airbag control unit testing device according to any one of claims 1 to 6, characterized in that: the variable patch resistance includes TMC3K38 series, TMC3K3R series, TMC2K2 series, TMC3K4J series, or TMC3KJ series.
8. A test system comprising an airbag control unit test apparatus according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121993332.6U CN215576276U (en) | 2021-08-23 | 2021-08-23 | Air bag control unit testing arrangement and test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121993332.6U CN215576276U (en) | 2021-08-23 | 2021-08-23 | Air bag control unit testing arrangement and test system |
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| CN215576276U true CN215576276U (en) | 2022-01-18 |
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| CN202121993332.6U Active CN215576276U (en) | 2021-08-23 | 2021-08-23 | Air bag control unit testing arrangement and test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942601A (en) * | 2022-05-26 | 2022-08-26 | 中国第一汽车股份有限公司 | Simulation test equipment and method for airbag electronic control system |
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2021
- 2021-08-23 CN CN202121993332.6U patent/CN215576276U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942601A (en) * | 2022-05-26 | 2022-08-26 | 中国第一汽车股份有限公司 | Simulation test equipment and method for airbag electronic control system |
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Address after: The road in Whampoa District of Guangzhou City, Guangdong Province, No. 1 510700 Patentee after: GAC Honda Automobile Co., Ltd. Patentee after: Guangzhou Honda Research & Development Co.,Ltd. Address before: Huangpu District guangben road Guangzhou City, Guangdong province 510700 No. 1 Patentee before: GAC Honda Automobile Co., Ltd. Patentee before: Guangzhou Honda Research & Development Co.,Ltd. |