JP2002116822A - System collating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system collating device capable of easily and precisely inspecting the device specifications of a vehicle side or the control specifications of a control unit before assembling the control unit into the vehicle side, and preventing any erroneous assembly. SOLUTION: This device is provided with connection terminals 45a-45h connectable to means 51a-51f to be controlled, a terminal 46 connectable to a control unit 1E, a means to be controlled detecting means 44 connected to the connection terminals 45a-45h for detecting electric characteristics related with the means 51a-51f to be controlled, an abnormality signal fetching means connected to the terminal 46 for fetching an abnormality detection signal outputted by the self-diagnostic function of the control unit 1E at the time of turning its connected state to the control unit 1E into an open state, a discriminating means for discriminating whether or not information related with the means 51a-51f to be controlled detected by the means to be controlled detecting means 44 is matched with information related with the abnormality detection signal fetched by the abnormality signal fetching means, and a display means 49 for displaying the discriminated result of the discriminating means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system verification device, and more particularly, to a control unit for controlling a system (for example, an airbag or a seat belt pretensioner).
And a system collation device used for correctly assembling a squib system including an occupant protection device and an occupant protection system control unit for controlling the squib system.

[0002]

2. Description of the Related Art A vehicle is provided with an airbag device, a seat belt pretensioner device and the like as an occupant protection device in the vehicle. In the airbag device, a sensor detects a collision of a vehicle, and the detection signal is taken into a microcomputer, and when the microcomputer determines that the collision is a vehicle, the microcomputer controls an ignition circuit of the squib, and the bag is pressurized by high-pressure gas. It inflates rapidly and restrains the occupant's head and chest from crashes. When a sensor detects a collision of a vehicle, a detection signal is taken into the microcomputer, and when the microcomputer determines that the collision is a vehicle, the seat belt pretensioner device controls the ignition circuit of the squib, and the airbag is used. The seat belt is forcibly wound up to restrain the occupant in the seat and protect the vehicle from a collision earlier than the deployment of the vehicle.

[0003] The operation control of the airbag device and the seat belt pretensioner device is usually performed by one control unit for an occupant protection system. However,
The number of airbag devices installed in vehicles, such as the front and side of the driver's seat and front passenger seat, and the side of the rear seats, has been increasing year by year, and the seat belt pretensioner device has been added. The number of occupant protection devices is increasing. In addition, the combination of the locations where the occupant protection device is installed differs between the types of vehicles, and also differs depending on the grade and optional settings of the same type of vehicle, making it difficult to grasp the specifications from the exterior. Also, the connector for connecting to the occupant protection system control unit is often of the same specifications regardless of the number of equipment of the occupant protection device. It is also difficult to grasp.

FIG. 18 is a block diagram showing a schematic configuration in a state where the control unit for the occupant protection system and the squib system of the vehicle are correctly connected. 1A in the figure indicates a control unit for an occupant protection system. In the figure, reference numeral 2 denotes a microcomputer (hereinafter referred to as a microcomputer). The microcomputer 2 includes an electronic acceleration sensor 3 for detecting a collision of a vehicle and outputting a detection signal, and an acceleration signal from the acceleration sensor 3. When the microcomputer 2 judges the collision,
A drive circuit 4 for executing the ignition of the squib in response to an ignition signal from the microcomputer and a diagnosis system for automatically diagnosing whether or not the airbag system is functioning normally by receiving a signal from the microcomputer 2 The circuit 5 and the like are connected.

The drive circuit 4 includes an ignition transistor and the like. The downstream side of the drive circuit 4 is grounded A. The drive circuit 4 upstream of the ground A is connected to a body-side squib system connector via connection terminals 6a to 6d. The terminal 6a is connected to a driver seat front airbag, the terminal 6b is a front passenger seat airbag, the terminal 6c is a driver seat belt pretensioner, and the terminal 6d is a passenger seat belt pretensioner. The negative squibs 8a to 8d are connected. A power supply circuit 10 including a booster power supply circuit, a constant voltage power supply circuit, a backup power supply circuit, and the like is connected to an upstream side of the drive circuit 4 via a safety sensor 9.
0 is supplied with power from a power source such as a battery (not shown).

A microcomputer 2 is connected to the diagnosis circuit 5 so as to detect a connection abnormality of the squibs 8a to 8d, and a failure code is stored when the microcomputer 2 determines that the connection is abnormal. EEPROM 11
Is connected, and a warning lamp 1 for notifying an occupant of an abnormality
2 is connected via a lamp drive circuit 13. An external connection terminal 14 for transmitting information stored in the EEPROM 11 to the outside is connected to the diagnosis circuit 5 via a line 7.

In the occupant protection system control unit 1A shown in FIG. 18, an acceleration signal from the acceleration sensor 3 is input to the microcomputer 2 due to a vehicle collision or the like. Emits a signal to turn on the ignition transistor (not shown) of circuit 4;
The safety sensor 9 is normally turned on in a state where the vehicle has collided, and power is supplied to the squibs 8 a to 8 d from the power supply circuit 10 via the safety sensor 9, and all the squibs 8 a to 8 d are supplied. The airbag device and the seat belt pretensioner device operate normally.

Further, if any abnormality is detected in the connection between the squibs 8a to 8d and the control unit 1A for the occupant protection system by the self-diagnosis function of the diagnosis circuit 5, the squib resistance in each of the squibs 8a to 8d is detected. Since the value is taken in through the drive circuit 4 and the microcomputer 2, the abnormality can be correctly determined, the warning lamp 12 is turned on through the lamp drive circuit 13, and the failure code is stored in the EEPROM 1.
1 can be stored.

On the other hand, FIG. 19 shows that the control unit 1B for the occupant protection system having only the control functions of the airbag devices in front of the driver's seat and the front of the passenger's seat is erroneously assembled in the squib system of a vehicle equipped with the same equipment as in FIG. It is a block diagram showing the state where it was turned.

In FIG. 19, an acceleration signal from the acceleration sensor 3 is input to the microcomputer 2 due to a vehicle collision or the like,
When the microcomputer 2 determines that the vehicle has collided, the microcomputer 2 issues a signal to turn on an ignition transistor (not shown) of the drive circuit 4, and the safety sensor 9 is in a normal ON state in a state where the vehicle has collided. Squib 8a,
Electric power is supplied to the power supply circuit 8b from the power supply circuit 10 via the safety sensor 9, and the airbag devices in front of the driver's seat and in front of the passenger's seat operate normally. However, since the occupant protection system control unit 1B does not operate the seat belt pretensioner device,
The seat belt pretensioner device does not operate.

In the self-diagnosis function by the diagnosis circuit 5, the squib 8a,
Since only the connection to the vehicle 8b is diagnosed, it is not possible to detect that the occupant protection system control unit 1B is in an abnormal state where the seat belt pretensioner device on the vehicle side cannot be driven. In other words, even if the control unit 1B that controls a smaller number of devices than the number of devices mounted on the vehicle is erroneously assembled, the control unit 1B cannot detect any abnormality.

[0012]

Normally, when replacing a control unit due to a failure or the like, a failure diagnosis of the control unit is first performed according to a vehicle repair manual or the like, and if a failure of the control unit is detected, Remove the control unit mounted on the vehicle and install a new one. The replacement at this time involves checking the part number of the failed control unit assembled in the vehicle, obtaining a new control unit having that part number, and assembling the new control unit to the vehicle.

However, there is a danger that a control unit having a smaller number of controllable channels than the device specifications actually mounted on the vehicle may be mounted due to carelessness such as a mistake in ordering replenishment parts or an assumption of a worker at the time of mounting. However, even if such a control unit is assembled, it is not possible to detect an abnormality that some of the equipment on the vehicle side is not connected by the self-diagnosis function of the control unit. If this is put on the market as it is, there is a danger that the airbag device and / or the seat belt pretensioner device will not operate in an emergency, making it impossible to ensure the safety of the occupant.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and enables easy and accurate inspection of equipment specifications on a vehicle side and control specifications of a control unit before assembling a control unit on a vehicle side. It is an object of the present invention to provide a system collation device capable of preventing the problem.

[0015]

Means for Solving the Problems and Their Effects To achieve the above object, a system collating apparatus (1) according to the present invention.
Is a connection terminal connectable to the controlled means, a controlled means detection means connected to the connection terminal for detecting an electrical characteristic of the controlled means, and an electrical characteristic value detected by the controlled means detection means Is characterized by comprising first determining means for determining whether or not is within a predetermined range, and first displaying means for displaying a result of the determination by the first determining means.

According to the above system collating device (1), since information on the controlled means detected by the controlled means detecting means can be displayed, all the controlled means mounted on the vehicle can be displayed. For example, it is possible to easily check all the equipment specifications (all the number of channels) of the airbag device and / or the seat belt pretensioner device without requiring any troublesome work. Therefore, by checking and confirming the specifications of the vehicle before assembling the control unit, it is possible to prevent erroneous assembling due to a worker's assumption or carelessness.

Further, the system collating device (2) according to the present invention.
Is a storage unit for storing information on the controlled unit, an alarm unit for notifying an abnormality of the controlled unit, and the electric unit by the first determining unit. Second determining means for determining a coincidence point between the information on the controlled means determined to have the characteristic value within the predetermined range and the information on the controlled means stored in the storage means; When it is determined as a result of the determination by the second determining means that a mismatch point exists, the alarm means for notifying an abnormality of the controlled means is activated.

According to the above system collating device (2), it is possible to more reliably determine the controlled means than the self-diagnosis function performed by the control unit, and furthermore, the display means is displayed by the display means so that a defective portion can be recognized. Therefore, it is possible to easily identify a defective portion, and to quickly perform a repair or the like. In addition, since the inspection can be performed before assembling the control unit to the vehicle side or the like, it is possible to prevent occurrence of erroneous assembling during assembling work.

Further, the system collation device (3) according to the present invention.
Is a connection terminal that can be connected to the control unit, and is connected to the connection terminal to turn on a connection state to the control unit.
A first abnormality signal capturing unit that captures an abnormality detection signal output by the self-diagnosis function of the control unit when in the open state, and an abnormality detection signal output from the first abnormality signal capturing unit. And a second display means for displaying information.

According to the above system collating device (3), the abnormality detection signal of the squib open output from the control unit in which the connection with the controlled means is in the open state is taken in, and the abnormality detection signal is obtained. Information can be displayed, so that the control specifications that can be controlled by the control unit can be easily checked without any troublesome work, and checked and confirmed before mounting on a vehicle or the like. Thus, it is possible to prevent occurrence of erroneous assembly due to belief or carelessness of the worker.

Further, the system collation device (4) according to the present invention.
A connection terminal connectable to the control unit, short signal output means connected to the connection terminal for outputting a short signal to the control unit, and an output signal from the short signal output means. A second abnormality signal capturing unit that captures an abnormality detection signal output by the self-diagnosis function of the control unit based on the second abnormality signal capturing unit; and a second display unit that displays information regarding the abnormality detection signal output from the second abnormality signal capturing unit. 3 display means.

According to the system collating device (4), the short signal is output to the control unit, and based on the signal output, an abnormality detection signal output by the self-diagnosis function of the control unit is taken. Since it is possible to display information on the captured abnormality detection signal,
Before assembling the control unit to the vehicle side or the like, it is possible to perform an inspection as to whether or not the function of the control unit is functioning normally, and it is possible to prevent the assembling of the abnormal control unit. it can.

Further, the system collation device (5) according to the present invention.
Is a connection terminal that can be connected to the control unit, and is connected to the connection terminal to turn on a connection state to the control unit.
A short signal is supplied to first abnormality signal acquisition means for acquiring an abnormality detection signal output by a self-diagnosis function of the control unit when the control unit is in the open state, and to the control unit connected to the connection terminal. Short signal output means for outputting, and second abnormality signal acquisition means for acquiring an abnormality detection signal output by a self-diagnosis function of the control unit based on an output signal from the short signal output means; Third determination means for determining whether or not the abnormality detection signal input to the first abnormality signal capture means matches the abnormality detection signal input to the second abnormality signal capture means; The third
And a fourth display means for displaying the result of the determination by the determination means.

According to the above system collating device (5), the information regarding the abnormality detection signal of the squib open detected by the control unit in which the connection with the controlled means is in the open state and the short signal are used. Judging whether or not the information on the abnormality detection signal of the squib shot detected by the control unit matches, and judging whether abnormality detection by the self-diagnosis function of the control unit is functioning normally. Therefore, before assembling the control unit to a vehicle or the like, it is possible to determine whether the function of the control unit is operating normally, and to determine whether the control unit has no normal function. Assembly can be prevented beforehand.

Further, the system collation device (6) according to the present invention.
A first connection terminal connectable to the controlled unit, a second connection terminal connectable to the control unit, and a second connection terminal connected to the first connection terminal for detecting an electrical characteristic of the controlled unit. An abnormality detection signal output by a self-diagnosis function of the control unit when the connected state to the control unit is open, which is connected to the second controlled means detection means and the second connection terminal; A third abnormality signal capturing unit to be captured, information on the controlled unit detected by the second controlled unit detection unit, and information on an abnormality detection signal captured by the third abnormality signal capturing unit. Is determined by a fourth determination unit that determines whether or not they match, and a fifth determination unit that displays a determination result by the fourth determination unit.
And display means.

According to the above system collating device (6), it is determined whether or not the equipment specifications of all the controlled means mounted on a vehicle or the like are compatible with the equipment specifications that can be controlled by the control unit. Can be easily determined without any troublesome work before assembling to a vehicle or the like, and it can be easily determined whether or not the controlled means on the vehicle side or the like and the control unit are compatible. It is possible to prevent the occurrence of erroneous assembly due to carelessness of the operator during the operation.

The fifth display means can display the detected specifications of the controlled means and the specifications of the control unit, in addition to the match / mismatch determination results.
The mismatched portion can be checked at a glance, leading to early detection of a defective portion, and quick response such as repair can be performed.

Further, the system collating device (7) according to the present invention.
Is the system collation device (1), (2), or (6)
In any one of the above, the controlled means is an airbag device and / or a sheet belt pretensioner device.

According to the system collation device (7), since the controlled means is an airbag device and / or a seat belt pretensioner device, the occupant protection system cannot be easily grasped from the outside. Even if the equipment specifications are used, the equipment specifications can be easily and accurately determined with an inexpensive device without any troublesome work.

Further, the system collating device (8) according to the present invention.
Is characterized in that, in any one of the system collation devices (3) to (7), the control unit is a control unit for an occupant protection system.

According to the system collating device (8), since the control unit is a control unit for an occupant protection system, it is possible to prevent the erroneous assembly of the control unit for the occupant protection system, and to provide an emergency occupant protection system. The operation control of the vehicle can be improved in reliability and the occupant protection system can be secured.

Further, the system collating device (9) according to the present invention.
Is the system collation device (1), (2), or (6)
In any one of (8) to (8), the electric characteristic of the controlled means is a squib resistance value.

According to the above system collating device (9), since the electric characteristic of the controlled means is the squib resistance value, the squib is normally connected and there is no connection abnormality such as short-circuit or disconnection. Can be easily determined without any troublesome work before assembling the control unit, so that repairs and the like can be performed quickly, and the reliability of operation of the system after assembling the control unit can be improved. .

[0034]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a system matching apparatus according to the present invention.

FIG. 1 is a block diagram showing a schematic configuration of a system matching apparatus according to the embodiment (1). The system collating device 20A is connected to the body-side connector 29 of the occupant protection system, and is connected to the connection terminals 21a to 21h (connector) for taking in the resistance values of the squibs 27a to 27f, and to the connection terminals 21a to 21h. Detection circuit 22 for detecting a signal to be detected, determination means 23 for determining the equipment specification of the body of the occupant protection system from the detection signal of the detection circuit 22, and a determination result signal from the determination means 23, which is inputted and displayed. Display circuit 2 for processing
4 and a display unit 25 for displaying the signal processing result.
And a power supply section 26 for supplying power to each section.

The detection circuit 22 includes a constant current source (not shown), and the squib 2 of the occupant protection system is connected to the constant current source.
Squib resistors 28a to 2 housed in 7a to 27f
8f, when a predetermined current flows, these squib resistances 2
8a to 28f are further provided with an operational amplifier and a resistor (both not shown) for detecting and amplifying the voltage at a preset amplification factor and outputting the amplified voltage. It is configured to be output.

The determination means 23 calculates a squib resistance value provided in the occupant protection system from the output value detected by the detection circuit 22, and calculates the squib resistance 27 from the squib resistance value.
The equipment specifications of a to 27f are determined. The judging means 23 sends a judgment result signal to the display circuit 24 connected to the judging means 23, and the display circuit 24 receiving the signal performs signal processing for display, and displays the squibs 27 a to 27 f on the display unit 25.
Display equipment specifications. The display unit 25 employs a display method using a fluorescent display tube, a liquid crystal display, a light emitting diode, or the like.

Next, the operation of detecting the squib specification by the system matching apparatus according to the embodiment (1) will be described with reference to the flowchart shown in FIG. Here, a case where the squib is constituted by six systems will be described.

First, the operator operates the connector 2 on the vehicle body side.
9, connection terminals 21a to 21h of the system verification device 20A.
Is connected, and the power supply of the system verification device 20A is turned on.

The determining means 23 first determines whether or not the power is turned on (step 1). When it is determined that the power is turned on, the process proceeds to step 2, and when it is determined that the power is not turned on, the process returns to step 1.

If it is determined that the power has been turned on, a minute current flows from the detection circuit 22 to the squibs 27a to 27f via the connectors 29 connected to the connection terminals 21a to 21h, and the squibs 27a to 27f are connected. The detection and capture processing of the voltage applied to the squib resistors 28a to 28f is performed (step 2).

Next, based on the detection result of the squib resistance value, the squib 27a provided in the occupant protection system is used.
仕 様 27f are determined (step 3).

Next, the contents of the squibs 27a to 27f judged to be normally connected to the occupant protection system are displayed on the display unit 25 via the display circuit 24, for example, as shown in FIG.
As shown in (4), processing for displaying the squib equipment contents so as to be understood is performed (step 4), and the processing is terminated.

In this case, the driver's seat front airbag (D
_FAB), the front passenger seat forward air bag (P _FAB), operation Sekishi -
Seatbelt pre-tensioner - (D _PT), assistant Sekishi - seatbelt pre-tensioners - (P _PT), the driver's seat side air bag (D _SAB), a squib for the passenger side air bag (P _SAB) 27a~27f The vehicle is equipped with a squib for the driver's rear seat side airbag (DR _SAB ) and the passenger's seat rear seat side airbag (PR _SAB ). I understand.

The detection circuit 22 may be configured to detect the maximum number of squib resistors constituting the occupant protection system. In the example of FIG. 1, the detection circuit 22 corresponds to eight systems. The configuration of the display unit 25 is shown.
It is of course possible to increase the number of systems according to the target.

According to the system collating apparatus according to the first embodiment, since information on the squibs 27a to 27f detected by the detection circuit 22 can be displayed, all the objects mounted on the vehicle or the like can be displayed. It is possible to easily confirm the specifications of all the control means (e.g., the squibs 27a to 27f) of the airbag device and / or the seat belt pretensioner device without any troublesome work.
Therefore, by checking the specifications of the vehicle or the like before mounting the control unit for the occupant protection system, it is possible to prevent the occurrence of erroneous assembly due to belief of the operator or carelessness.

FIG. 4 is a block diagram showing a schematic configuration of a system matching device according to the embodiment (2). However,
Components having the same functions as the components shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

The microcomputer 23A in the system collation device 20B shown in FIG. 4 is provided with a storage means 23a for storing information on a combination of an airbag device and / or a seat belt pretensioner device of the occupant protection system.
Determining means 23b for determining the equipment specification of the squib on the body side of the occupant protection system from a detection signal from the detection circuit 22, and the squib on the body side of the occupant protection system determined by the first determining means 23b. Second determination means 23c for determining a coincidence point between the information on the equipment specification and the information on the combination of the equipment stored in the storage means 23a.

A display circuit 24 for performing signal processing for display and an alarm drive circuit 24a are connected to the second determination means 23c of the microcomputer 23A.
5 and the alarm drive circuit 24 a is connected to a warning display section 25 a in the display section 25.

Next, the operation of detecting the squib specification by the system matching apparatus according to the embodiment (2) will be described with reference to the flowchart shown in FIG. Here, a case where the squib is composed of six systems will be described.

First, the operator operates the connector 2 on the vehicle body side.
9, connection terminals 21a to 21h of the system verification device 20B.
To turn on the power supply of the system verification device 20B.

The microcomputer 23A first determines whether or not the power is turned on (step 11). When it is determined that the power is turned on, the process proceeds to step 12, and when it is determined that the power is not turned on, the process returns to step 11.

When it is determined that the power is turned on, a minute current flows from the detection circuit 22 to the squibs 27a to 27f via the connectors 29 connected to the connection terminals 21a to 21h, and the squibs 27a to 27f are connected to the squibs 27a to 27f. A process of detecting and capturing the voltage applied to the squib resistors 28a to 28f is performed (step 12).

Next, the specifications of the squibs 27a to 27f provided in the occupant protection system are determined by the first determination means 23b based on the detection result of the squib resistance value (step 13).

Then, information about the combination of the equipment specifications of the occupant protection system stored in the storage means 23a is read out (step 14), and the information is provided to the occupant protection system determined by the first determination means 23b. The information on the specifications of the squibs 27a to 27f is compared with the information read from the storage means 23a on the combination of the equipment specifications of the occupant protection system (step 1).
5).

Then, at step 16, it is determined whether or not there is a mismatch point. In step 16, if there is a mismatch point, that is, if it does not match any of the information related to the combination of the equipment specifications stored in the storage unit 23a, it is determined that there is some failure point in the squibs 27a to 27f on the vehicle side, Proceed to step 17. And
A signal is sent to the warning drive circuit 24a to perform a wiring check and the like of the squib on the vehicle side, and a process of displaying a warning on a warning display unit 25a provided in the display unit 25 is performed (step 17). The squib equipment location that did not match the information on the combination of equipment specifications stored in the storage unit 23a is displayed differently from the equipment location that matches the information on the combination of the equipment specifications stored in the storage unit 23a. Display circuit 24
Is performed, a process of displaying the determination result on the display unit 25 is performed (step 18), and the process ends.

For example, FIG. 6 shows a display result on the display unit 25 when it is determined that there is a mismatching point. In this case, the first determining means 23b determines D _FAB , P _PT , D
_SAB and P _SAB are detected, and the second determination means 23c
For example, information on the combination of six systems (FIG. 7) is read from the storage unit 23a and compared with the information on the equipment obtained by the first determination unit 23b. And the first
Information about the equipment determined by the determining means 23b combines pattern shown in FIG. 7 - is determined to be equivalent to down, that the results and P _FAB and D _PT does not match is determined by the second determination unit 23c You. Then, on the display unit 25, a light-up display indicating that D _FAB , P _PT , D _SAB , and P _SAB are normally mounted is performed, and P _FAB and D _PT are blinking displayed. Despite this, it is indicated that there is some abnormality in the connection state of the squib or the like, and a warning display is displayed on the warning display section 25a to notify the operator.

On the other hand, if there is no mismatch point in step 16, it is determined that the squib or the like mounted on the vehicle has no abnormal part such as disconnection or short, and the squib is mounted as shown in FIG. A process is performed to light up and display the part that has been turned on (step 19), and the process ends.

According to the system collating apparatus according to the embodiment (2), the squib resistance 28 can be accurately determined without relying on the self-diagnosis function of the occupant protection system control unit.
The resistance values of a to 28f can be measured, and the defective portion is displayed on the display unit 25 so that the defective portion can be identified. Therefore, the defective portion can be easily specified, and the repair or the like can be quickly performed. it can. In addition, since the inspection can be performed before assembling the control unit for the occupant protection system to the vehicle side or the like, it is possible to prevent occurrence of erroneous assembling during assembling work.

FIG. 8 is a block diagram showing a schematic configuration of a system collation device according to the embodiment (3). The control unit 1C for the occupant protection system and the system collation device 30 are provided.
A shows a state where A is connected.

In the figure, reference numeral 6 denotes a connector connected to the body-side connector of the occupant protection system. The connector 6 includes connection terminals 6a to 6f, and wiring from the connection terminals 6a to 6f is used to ignite each squib. The drive circuit 4 is connected to a drive circuit 4 that performs drive processing, and the drive circuit 4 is connected to the microcomputer 2 that outputs an ignition determination signal. An electronic acceleration sensor 3 and a diagnosis circuit 5 are connected to the microcomputer 2. The diagnosis circuit 5 has a lamp driving circuit 13 for driving a warning lamp (not shown) and a failure code. Is stored in the EEPROM 11 through the line 7 and the EEPROM 11
An external output terminal 14 for transmitting information stored in the PROM 11 to the outside is connected.

On the other hand, reference numeral 31 in the figure of the system verification device 30A indicates a terminal connected to the external connection terminal 14 of the occupant protection system control unit 1C via the communication wiring 37. A microcomputer 33a is connected to the terminal 31. The microcomputer 33a reads information from the occupant protection system control unit 1C via the communication wiring 37, and determines the control specifications of the occupant protection system control unit 1C. ing. The microcomputer 33a includes the microcomputer 3
The display circuit 34 that receives the determination result signal in 3a and performs signal processing for display, the display unit 35 that displays the signal-processed determination result, and the power supply unit 36 that supplies power to each unit are connected. I have. The display section 35 can adopt a display method using a fluorescent display tube, a liquid crystal display, a light emitting diode, or the like.

Embodiment (3) configured as described above
The operation of detecting the specification of the control unit for the occupant protection system by the system collating device according to the present invention is shown in FIG.
Explanation will be made based on the

First, the worker connects the external connection terminal 14 of the occupant protection system control unit 1C to the system collation device 30.
A terminal 31 is connected to communication terminal 37 via communication wiring 37, and power is supplied by turning on power supply unit 36 of system verification device 30A.

The microcomputer 33a first determines whether or not the power has been turned on (step 21). If it is determined that the power has been turned on, the process proceeds to step 22. If it is determined that the power has not been turned on, the process returns to step 21.

If it is determined that the power has been turned on, the microcomputer 33a sends a signal for outputting a self-diagnosis result to the diagnosis circuit 5 of the occupant protection system control unit 1C (step 22). Then, the diagnosis circuit 5 of the occupant protection system control unit 1C receives a signal from the microcomputer 33a of the system verification device 30A (step 23), and performs a self-diagnosis as to whether or not the occupant protection system is functioning normally. Start (Step 2
4). According to the self-diagnosis, it is determined that the squib is open when the connection terminals 6a to 6f of the occupant protection system control unit 1C are not connected to the body side. At this time, what is detected is the open position of the squib that can be controlled by the occupant protection system control unit 1C. Therefore, the occupant protection system control unit 1C is compatible with an occupant protection system of any equipment specification. That is, the control specification of the occupant protection system control unit 1C can be determined from the squib open detection result.

Then, the detection result of the squib open detected by the self-diagnosis by the diagnosis circuit 5 is transmitted to the microcomputer 33a of the system collating device 30A (step 25).

In the microcomputer 33a, the diagnosis is performed.
The self-diagnosis result transmitted from the cis circuit 5 is received (step 26), a failure code is read from the received self-diagnosis result, and the control specification of the occupant protection system control unit 1C is determined (step 27). .

Next, the control unit 1 for the occupant protection system
The equipment contents determined to be controllable by C are displayed on the display unit 35 via the display circuit 34 so that the controllable equipment contents of the occupant protection system control unit 1C can be understood, for example, as shown in FIG. (Step 2)
7), the process ends.

[0070] display from the results shown in FIG. 10, the control unit 1C is for occupant protection systems, the driver's seat forward air bag (D _FAB), passenger seat front airbag (P _FAB), operating Sekishi - seatbelt pretensioner - ( D _PT), assistant Sekishi - seatbelt pre-tensioners - (P _PT), the driver's seat side air bag (D _SAB), it is possible to control the passenger seat side air bag (P _SAB), the driver's seat rear seat Side airbag (D
R _SAB ) and the side airbag (PR
_SAB ) is a specification that cannot be controlled.

According to the system collating apparatus according to the above embodiment (3), the squib open failure detected by the self-diagnosis of the occupant protection system control unit 1C in which the connection terminals 6a to 6f are open. The microcomputer 33a captures the code, and the microcomputer 33a reads the fault code and displays the result of the control specification determined on the display unit 35, so that the airbag device and / or the seat belt pretensioner can be displayed. You can easily check the control specifications that can be controlled by the occupant protection system control unit for controlling the device without troublesome work.Before mounting it on the vehicle side etc., use the system collation device By performing the inspection and confirming, it is possible to prevent the occurrence of erroneous assembling due to a worker's assumption or carelessness.

FIG. 11 is a block diagram showing a schematic configuration of a system matching device according to the embodiment (4). However, here, components having the same functions as those shown in FIG. 8 are denoted by the same reference numerals, and only the microcomputers having different functions are denoted by different reference numerals, and description thereof is omitted.

The difference from the system collating apparatus according to the embodiment (3) is that a squib shot switch 38 is newly provided in the system collating apparatus 30B.
Thus, by detecting the squib shot by the self-diagnosis function of the occupant protection system control unit 1D, it is possible to detect whether the self-diagnosis function of the occupant protection system control unit 1D is operating normally. Has become.

Next, the operation of detecting the specifications of the control unit for the occupant protection system by the system collating apparatus according to the embodiment (4) will be described with reference to the flowchart shown in FIG.

First, the worker connects the external connection terminal 14 of the occupant protection system control unit 1D to the system collation device 30.
B terminal 31 is connected via communication wiring 37, and power is supplied by turning on power supply unit 36 of system verification device 30B.

The microcomputer 33b first determines whether or not the power has been turned on (step 31). If it is determined that the power has been turned on, the process proceeds to step 32. If it is determined that the power has not been turned on, the process returns to step 31.

If it is determined that the power has been turned on, it is determined whether or not the squib shot switch 38 has been turned on (step 32). If it has been determined that the power has been turned on, the process proceeds to step 33; Return to

If it is determined that the squib shot switch 38 has been turned on, the microcomputer 33b sends a signal for outputting a squib shot diagnosis result to the diagnosis circuit 5 of the occupant protection system control unit 1D (step 33).

Then, the diagnosis circuit 5 of the occupant protection system control unit 1D receives a signal from the microcomputer 33b of the system collating device 30B (step 34), and performs a squib shot by the short detection means of the self-diagnosis function. (Step 35). The show
According to the vehicle detection means, since the connection terminals 6a to 6f of the occupant protection system control unit 1D are not connected to the squib, it is detected that the vehicle is in the squib short state. What is detected at this time is that a squib short point that can be controlled by the occupant protection system control unit 1D is detected. It can be determined from the detection result of the squib shot whether or not they correspond.

The detection result of the squib shot detected by the self-diagnosis by the diagnosis circuit 5 is transmitted to the microcomputer 33b of the system verification device 30B (step 36).

In the microcomputer 33b, the diagnosis is performed.
The self-diagnosis result transmitted from the cis circuit 5 is received (step 37), a failure code is read from the received self-diagnosis result, and the control specification of the occupant protection system control unit 1D is determined (step 38). .

Next, the control unit 1 for the occupant protection system
The equipment contents determined to be controllable by D are displayed on the display unit 35 via the display circuit 34 so that the controllable equipment contents of the occupant protection system control unit 1D can be understood as shown in FIG. Perform processing to display (step 3
9), end the processing. From the display results shown in FIG. 10, the control unit 1D for the occupant protection system indicates that D _FAB , P
It can be seen that six systems of _FAB , D _PT , P _PT , D _SAB , and P _SAB can be controlled, and that DR _SAB and PR _SAB cannot be controlled.

According to the system collating apparatus according to the embodiment (4), the squib shot switch 38 is provided, and the squib shot diagnosis output signal is output to the diagnosis circuit 5 of the occupant protection system control unit 1D. Then, based on the squib shot diagnostic output signal, a failure code indicating a squib shot output by the self-diagnosis function of the occupant protection system control unit 1D is fetched, and a failure relating to the squib shot signal fetched is performed. Since the information of the code can be read out and displayed on the display unit 35, before assembling the control unit for the occupant protection system to the vehicle side or the like, whether or not the function of the control unit for the occupant protection system is normal is checked. Inspections to prevent the installation of control units for occupant protection systems with abnormalities. It can be.

Next, a system matching device according to the embodiment (5) will be described. The system collation device according to the embodiment (5) is substantially the same as the system collation device according to the embodiment (4). Therefore, different reference numerals are given only to the microcomputers having different functions. Is omitted.

The system matching device 30C according to the embodiment (5) is characterized in that the functions of the system matching devices 30A and 30B according to the embodiment (3) and the embodiment (4) are combined. There is.

The specification detecting operation of the occupant protection system control unit 1D by the system collating device 30C according to the embodiment (5) will be described with reference to the flowchart shown in FIG.

First, the worker connects the external connection terminal 14 of the occupant protection system control unit 1D to the system collation device 30.
The terminal 31 of C is connected via the communication wiring 37, and the power supply unit 36 of the system verification device 30C is turned on to supply power.

The microcomputer 33c first determines whether or not the power is turned on (step 41). When it is determined that the power is turned on, the process proceeds to step 42, and when it is determined that the power is not turned on, the process returns to step 41.

If it is determined that the power has been turned on, the microcomputer 33c transmits a signal for outputting a self-diagnosis result to the diagnosis circuit 5 of the occupant protection system control unit 1D (step 42). Then, the diagnosis circuit 5 of the occupant protection system control unit 1C receives a signal from the microcomputer 33c of the system verification device 30C (step 43), and performs self-diagnosis as to whether the occupant protection system is functioning normally. Start (Step 4
4). According to the self-diagnosis, since the connection terminals 6a to 6f of the occupant protection system control unit 1D are not connected to the squib, it is detected that the squib is in the open state. At this time, it is detected that the squib is controlled by the occupant protection system control unit 1D.
Since the open position is detected, it is possible to determine from the detection result of the squib open what kind of equipment squib the occupant protection system control unit 1D corresponds to.

The detection result of the squib open detected by the self-diagnosis by the diagnosis circuit 5 is transmitted to the microcomputer 33c of the system verification device 30C (step 45). Then, the microcomputer 33c receives the self-diagnosis result transmitted from the diagnosis circuit 5 (step 46).

Next, the microcomputer 33c determines whether or not the squib shot switch 38 has been turned on (step 4).
7) If it is determined that the squib shot switch 38 is turned on, the microcomputer 33c sends a signal for outputting a squib shot diagnosis result to the diagnosis circuit 5 of the occupant protection system control unit 1D (step 4).
8).

Then, the diagnosis circuit 5 of the occupant protection system control unit 1D receives a signal from the microcomputer 33c of the system collating device 30C (step 49), and performs a squib shot by the short detection means of the self-diagnosis function. (Step 50). According to the short detection means, the occupant protection system control unit 1
It is detected that the connection terminals 6a to 6f of D are in the squib short state. What is detected at this time is that a squib short point that can be controlled by the occupant protection system control unit 1D is detected. It can be determined from the detection result of the squib shot whether or not they correspond.

The detection result of the squib shot detected by the self-diagnosis by the diagnosis circuit 5 is transmitted to the microcomputer 33c of the system collating device 30C (step 51).

In the microcomputer 33c, the diagnosis is performed.
The self-diagnosis result of the squib shot detection transmitted from the cis circuit 5 is received (step 52).

Next, the reading of the fault code from the self-diagnosis result of the squib open detection received in step 46 and the reading of the fault code from the self-diagnosis result of the squib shot detection received in step 52 are performed. Then, the read control specifications of the occupant protection system control unit 1D are compared (step 53).

At step 54, it is determined whether or not the control specifications read from the failure code match. If it is determined in step 54 that the control specifications read from the two failure codes match, the self-diagnosis function of the occupant protection system control unit 1D functions normally to check the connection with the squib. And the control unit 1 for the occupant protection system indicating that it is normal
A process for displaying the control specifications of D is performed (step 5).
5), end the processing.

On the other hand, at step 54, both failure codes
If it is determined that the control specifications read from the code do not match, it is determined that the self-diagnosis function of the occupant protection system control unit 1D is not functioning normally, and A process for displaying an abnormal warning is performed so as to notify the assembling worker by a different display method (step 56), and the process is terminated.

For example, FIG. 14A shows an example of a display result on the display unit 35 when a mismatched portion is detected.
Sukuibuo - of Pung detection failure co - detection result read from de and Sukuibusho - DOO detection of a fault co - D _{FA B} of the detection result read matches from de, P _FAB, D _SAB, P
_{The SAB} indicates on the _SAB that the self-diagnosis function of the occupant protection system control unit 1D is functioning normally and the squib is being checked. The detection results of the squib open detection and the squib short detection are shown. For example, a blinking display may be performed on the D _PT and P _PT that do not match to indicate that the self-diagnosis function by the diagnosis circuit 5 is not functioning properly.

FIG. 14 shows another display method.
As shown in (b), when the detection result of the squib open detection and the detection result of the squib short detection are individually displayed on the display unit 35, and there is a specification part where both the detection results do not match. in the example shown in FIG. 14 (b) Sukuibuo - to have been detected successfully at Pung detection, Sukuibusho - D _PT was not detected correctly by preparative detection, the P _PT, for example, control an occupant protection system by flashing The self-diagnosis function of the unit 1D may be shown so as to indicate that it is not operating normally.

On the other hand, if it is determined in step 47 that the squib short switch has not been turned on, control specifications are determined only by squib open detection in the same manner as in the processing operations described in steps 27 and 28 in FIG. Display processing is performed in steps 57 and 58, and the processing ends.

According to the system collating device according to the embodiment (5), the connection terminal 6 connected to the squib of the airbag device and / or the seat belt pretensioner device is provided.
A squib open failure detected by the occupant protection system control unit 1D with a to 6f open.
The microcomputer 33c fetches information relating to the squib shot signal and information relating to the squib short fault code detected by the occupant protection system control unit 1D based on the squib short signal, and determines whether or not the codes match. Since the determination result can be displayed on the display unit 35, it can be determined whether or not the self-diagnosis function of the control unit for the occupant protection system is functioning correctly. This leads to early detection of a fault location and the fault location is specified. Repairs are easier. Then, before assembling the occupant protection system control unit to the vehicle side or the like, the occupant protection system control unit 1D having no normal function can be prevented from being assembled.

FIG. 15 is a block diagram showing a schematic configuration of a system matching device according to the embodiment (6). The system matching device according to the embodiment (6) has both functions of the system matching device 20A according to the embodiment (1) and the system matching device 30A according to the embodiment (3), and performs assembly. It has a function of determining the conformity of the squib system on the body side with the control unit for the occupant protection system.

The system collation device 40A is connected to the connector 50 on the body side of the occupant protection system, and
Connection terminals 45a-45h (connectors) for taking in the resistance values of 1a-51f, and connection terminals 45a-45
detection circuit 44 for detecting a signal taken in through
And a microcomputer 43 for determining the equipment specifications of the occupant protection system on the body side from the detection signal of the detection circuit 44. On the other hand, the occupant protection system control unit 1E (the occupant protection system control unit 1D The description is omitted because the configuration is the same as that of the external connection terminal 14).
The terminal 46 is connected to the microcomputer 43 so that a control signal can be input and output from the microcomputer 43 to the occupant protection system control unit 1E.

In the microcomputer 43, the connection terminals 45a to 45
The detection value detected by the detection circuit 44 for detecting an electric signal taken in through the h is determined, the equipment specification of the squib provided in the occupant protection system is determined, and the failure code taken from the other occupant protection system control unit 1E. Is read to determine the control specifications of the occupant protection system control unit 1E, and determine whether or not the squib equipment specifications and the control specifications of the occupant protection system control unit are compatible. .

The microcomputer 43 has an operation section 42 provided with various operation switches, a power supply section 41 for supplying DC power, and a display for receiving a judgment result signal and performing signal processing for display. A display unit 49 for displaying a matching result via the circuit 48 and the display circuit 48 is connected. In this display unit 49, the equipment specifications of the squib system on the body side, the control specifications of the control unit for the occupant protection system,
Then, the result of the matching is displayed.

Embodiment (6) configured as described above
Of the squib system on the body side and the control unit for the occupant protection system by the system collating apparatus 40A according to the present invention will be described with reference to the flowchart shown in FIG.

First, the worker connects the connection terminals 45a to 45h of the system collation device 40A to the connector 50 on the body side, and the communication wiring 37 connected to the external connection terminal 14 of the occupant protection system control unit 1E. The terminal 46 is connected, and a power switch provided on the operation unit 42 of the system verification device 40A is turned on to supply power.

In step 61, it is first determined whether or not the power has been turned on (step 61). If it is determined that the power has been turned on, the process proceeds to step 62. If it is determined that the power has not been turned on, the process returns to step 61.

When it is determined that the power has been turned on, the detection circuits 44 on the squib detection side detect the connection terminals 45a to 45h.
Squib 51a via a connector 50 connected to
Through 51f to detect and capture the voltage applied to the squib resistors 52a to 52f connected to the squibs 51a to 51f (step 62).

Next, based on the detection result of the squib resistance value, the squibs 51a-5
The specification of 1f is determined (step 63). Microcomputer 43
And outputs a signal for outputting a self-diagnosis result to the diagnosis circuit 5 of the occupant protection system control unit 1E (step 64).

Then, the diagnosis circuit 5 of the occupant protection system control unit 1E receives a signal from the microcomputer 43 of the system collation device 40A (step 6).
5) Start self-diagnosis as to whether the occupant protection system is functioning normally (step 66). According to the self-diagnosis, it is determined that the squib is open when the connection terminals 6a to 6f of the occupant protection system control unit 1E are not connected to the body side. At this time, what is detected is the open position of the squib that can be controlled by the occupant protection system control unit 1E.
It is possible to determine what equipment specification of the occupant protection system control unit 1E is compatible with the occupant protection system, that is, the control specification of the occupant protection system control unit.

Then, the result of detection of the squib open detected by the self-diagnosis by the diagnosis circuit 5 is transmitted to the microcomputer 43 of the system collating device 40A (step 67).

Then, in the microcomputer 43, the diagnosis
The self-diagnosis result transmitted from the cis circuit 5 is received (step 68), a failure code is read from the received self-diagnosis result, and the control specification of the occupant protection system control unit 1E is determined (step 69). .

Next, in the microcomputer 43, does the information on the equipment specifications of the squibs 51a to 51f determined in step 63 match the information on the control specifications of the occupant protection system control unit 1E determined in step 68? It is determined whether or not it is (step 70).

If it is determined in step 69 that they match, a process of displaying the result conforming to the display unit 49 and displaying its specifications via the display circuit 48 is performed (step 71). For example, as shown in FIG. 17A, the display is lit so that the equipment specification of the squib and the control specification of the control unit can be understood. In this case, since the equipment specification of the squib matches the control specification of the control unit 1E for the occupant protection system, the result that the squib and the control unit are compatible is displayed in the display window 49a separately provided.
By displaying K, it is possible to inform the worker of the suitability.

On the other hand, if it is determined in step 70 that they do not match, a process of displaying the nonconforming result on the display unit 49 and displaying its specifications via the display circuit 48 is performed (step 72). For example, in FIG.
An example is shown in which the equipment specifications of the squib and the control specifications of the control unit do not match.
_FAB, P _FAB, D _PT, to specifications squib P _PT is equipped, the control unit is indicated by lights display that is a specification that can not be controlled only D _FAB, squib P _{FA B} . In this case, the result that the equipment specification of the squib on the body side is incompatible with the control specification of the control unit is displayed as NG in a separately provided display window 49a to notify the worker of the incompatibility. Is desirable.

The result of the match or mismatch between the squib system of the vehicle and the control unit 1E for the occupant protection system determined by the microcomputer 43 is displayed on the display window 49a of the display unit 49. It is more preferable to change the display and lighting colors so as to be able to identify the matching part so that the user can understand which part has a different specification.

According to the system collating device according to the embodiment (6), the information on the equipment specifications of the squibs 51a to 51f of the airbag device and / or the seat belt pretensioner device mounted on the vehicle side is provided. The microcomputer 43 takes in information relating to control specifications that can be controlled by the occupant protection system control unit 1E into the microcomputer 43, determines whether or not the information matches, and displays the determination result on the display unit 49. It is possible to easily check whether the squib system of the vehicle and the control unit for the occupant protection system are compatible with each other without any troublesome work before assembling the control unit for the occupant protection system to the vehicle. To prevent the erroneous assembly of the occupant protection system control unit during assembly work on the vehicle. It can be. Further, in addition to the conformity result, the display unit 49 can also display the detected equipment specifications of the squib and the control specifications of the control unit, respectively, so that the operator can confirm the mismatched portion at a glance.
This also leads to the detection of a defective portion, and can ensure repair.

In the system matching device according to the embodiment (6), both functions of the system matching device 20A according to the embodiment (1) and the system matching device 30A according to the embodiment (3) are combined. However, the combination is not limited to this, and the system matching device 20A or 20B described in the above embodiment may be used.
It is also possible to adopt a configuration having a function of appropriately combining any of the system collation devices 30A, 30B, and 30C.

Further, in the above embodiment, the occupant protection system in which the airbag device and / or the seat belt pretensioner device are provided in the vehicle, and the control unit for the occupant protection system for controlling the operation thereof are described.
Before assembling them, a detection device that detects equipment specifications and / or control specifications to prevent erroneous assembly has been described. However, embodiments of the present invention are not limited to these contents at all. When the controlled means is controlled by the control unit, if multiple combinations of the equipment specifications of the controlled means and the control specifications of the control unit are possible, it is necessary to prevent erroneous assembly of them. Can be applied.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of a system matching device according to a first embodiment.

FIG. 2 is a flowchart showing a detection processing operation in the system matching device according to the embodiment (1).

FIG. 3 is a schematic diagram showing an example of a display unit of the system matching device according to the embodiment (1), showing a detection result when the squib system is normal.

FIG. 4 is a block diagram illustrating a schematic configuration of a system matching device according to Embodiment (2).

FIG. 5 is a flowchart showing a detection processing operation in the system matching device according to the embodiment (2).

FIG. 6 is a schematic diagram showing an example of a display unit of the system matching device according to the embodiment (2), showing a detection result when the squib system is abnormal.

FIG. 7 is an explanatory diagram showing information on a combination stored in a storage unit of the system matching device according to the embodiment (2).

FIG. 8 is a block diagram showing a schematic configuration of a system matching device according to Embodiment (3).

FIG. 9 is a flowchart showing a detection processing operation in the system matching device according to the embodiment (3).

FIG. 10 is a schematic diagram illustrating an example of a display result displayed on a display unit of the system matching device according to Embodiment (3);
The detection result when the control unit is normal is shown.

FIG. 11 is a block diagram showing a schematic configuration of a system matching device according to Embodiment (4).

FIG. 12 is a flowchart showing a detection processing operation in the system matching device according to the embodiment (4).

FIG. 13 is a flowchart showing a detection processing operation in the system matching device according to the embodiment (5).

FIG. 14 is a schematic diagram showing an example of a display result displayed on a display unit of the system matching device according to Embodiment (5);
(A), (b) is a figure which shows the detection result at the time of control unit abnormality.

FIG. 15 is a block diagram showing a schematic configuration of a system matching device according to Embodiment (6).

FIG. 16 is a flowchart showing a detection processing operation in the system matching device according to the embodiment (6).

FIG. 17 is a schematic diagram showing an example of a display result displayed on the display unit of the system matching device according to the embodiment (6).
(A) shows a matching result, and (b) shows a non-matching result.

FIG. 18 is a block diagram for explaining a connection state between a conventional airbag control unit and an airbag system, and shows a state in which the airbag control unit is correctly connected.

FIG. 19 is a block diagram for explaining a connection state between a conventional airbag control unit and an airbag system, and shows a state where the connection is erroneously performed.

[Explanation of symbols]

20A, 20B, 30A, 30B, 30C, 40A System collation device 21a-21h, 45a-45h Connection terminal 22,44 Detection circuit 23 Judgment means 23A, 33a, 33b, 33c, 43 Microcomputer 23a Storage means 23b First judgment means 23c Second determination means 24, 34, 48 Display circuit 25, 35, 49 Display section 25a Warning display section 31, 46 Terminal 38 Squib shot switch

Claims (9)

[Claims] A connection terminal connectable to the controlled unit; a controlled unit detection unit connected to the connection terminal for detecting an electrical characteristic of the controlled unit; and a connection terminal detected by the controlled unit detection unit. A system comprising: first determination means for determining whether an electrical characteristic value is within a predetermined range; and first display means for displaying a determination result by the first determination means. Collation device. 2. A storage unit for storing information on the controlled unit, an alarm unit for notifying an abnormality of the controlled unit, and the electric characteristic value within a predetermined range by the first determining unit. And a second determining means for determining a coincidence point between the information on the controlled means determined to be located in the storage means and the information on the controlled means stored in the storage means, and a determination by the second determining means. 2. The system matching device according to claim 1, wherein when it is determined that a mismatch point exists, the alarm unit for notifying an abnormality of the controlled unit operates. 3. A connection terminal connectable to the control unit, and an abnormality connected to the connection terminal and output by a self-diagnosis function of the control unit when a connection state to the control unit is set to an open state. A first abnormal signal capturing means for capturing the detection signal; and a second display means for displaying information relating to the abnormality detection signal output from the first abnormal signal capturing means. System collation device. 4. A connection terminal connectable to a control unit, a short signal output means connected to the connection terminal and outputting a short signal to the control unit, and a short signal output means from the short signal output means. Second abnormality signal capturing means for capturing an abnormality detection signal output by the self-diagnosis function of the control unit based on the output signal; and information on the abnormality detection signal output from the second abnormality signal capturing means. And a third display means for displaying. 5. A connection terminal connectable to the control unit, and an abnormality output by a self-diagnosis function of the control unit when the connection state to the control unit is set to an open state. First abnormality signal acquisition means for acquiring a detection signal; and a control unit connected to the connection terminal,
A short signal output means for outputting a short signal, and a second abnormality signal acquisition for acquiring an abnormality detection signal outputted by a self-diagnosis function of the control unit based on an output signal from the short signal output means. Means, and a third determination for determining whether or not the abnormality detection signal input to the first abnormality signal capturing means matches the abnormality detection signal input to the second abnormality signal capturing means. Means, and a fourth display means for displaying a result of the judgment by the third judgment means. 6. A first connection terminal connectable to a controlled unit, a second connection terminal connectable to a control unit, and an electric characteristic of the controlled unit connected to the first connection terminal. A second controlled means detecting means for detecting an abnormality which is connected to the second connection terminal and which is output by a self-diagnosis function of the control unit when the connection state to the control unit is set to an open state; Third abnormality signal capturing means for capturing a detection signal; information on the controlled means detected by the second controlled means detection means; and an abnormality detection signal captured by the third abnormality signal capturing means. And a fourth display for displaying a result of the determination by the fourth determiner. . 7. The system according to claim 1, wherein the controlled means is an airbag device and / or a sheet belt pretensioner device. Collation device. 8. The system verification device according to claim 3, wherein the control unit is a control unit for an occupant protection system. 9. The system matching apparatus according to claim 1, wherein said electric characteristic of said controlled means is a squib resistance value.