JPH1194708A - System for diagnostic vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an expert system which easily detects failure reasons, positions of failure points on circuits, mount positions of faulty devices, and facilitates maintenance of the devices, by setting a memory means for storing diagnostic data, etc. SOLUTION: A memory means 3 stores service data such as electric circuit data, hydraulic circuit data, mount position data of various devices and device data, etc., and diagnostic data such as failure data and defect data, etc. An input means 4 inputs necessary device information and failure information as an input information. At least one of the electric circuit data, hydraulic circuit data and mount data of various devices in the memory means 3 is combined with a data corresponding to the input information, whereby a program is set. A selecting means 5 selects individual data corresponding to the set program from the service data and diagnosis data in the memory means 3. The selected individual data is displayed at a display means 7 (CRT display).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diagnostic system for diagnosing various devices of an electric drive unit and a hydraulic drive unit in a vehicle provided with an electric drive unit driven by an electric circuit and a hydraulic drive unit driven by a hydraulic circuit. .

[0002]

2. Description of the Related Art Generally, a vehicle such as a refuse collection vehicle or an aerial work vehicle is provided with an electric drive device driven by an electric circuit and a hydraulic drive device driven by a hydraulic circuit. In addition to being provided with various devices such as switches and an electromagnetic switching valve, the hydraulic drive device is provided with various devices such as a hydraulic cylinder. Since various devices such as the electric drive device and the hydraulic drive device are used under a heavy load condition, the necessity of maintenance is high, and the frequency of failure is high. The burden on the service person having the problem becomes very large.

Therefore, conventionally, for example, Japanese Patent Laid-Open No. 7-2
As disclosed in Japanese Unexamined Patent Publication No. 71590, a vehicle diagnosis system using an expert system which inputs expert knowledge by computer and solves a complicated problem causing a failure at the same level as an expert using the knowledge is used. It has been known. In such a vehicle diagnostic system, the root cause of failure (failure location) that is causing the failure phenomena of various devices can be easily inferred even by those who do not have sufficient knowledge, greatly reducing the burden on service personnel. Will be done.

[0004]

In the above-mentioned conventional diagnostic system, a faulty part is inferred on the basis of the knowledge of a specialist. It is not possible to easily find out where in the hydraulic circuit or where the equipment that will be the fault is located, and rely on electrical circuit diagrams, hydraulic circuit diagrams, vehicle maintenance instructions, etc. You need to find it in light of its contents,
It has not yet been an effective expert system to replace servicemen.

[0005] In addition, even in the case of performing maintenance of the above-mentioned various devices, those who do not have sufficient knowledge rely on vehicle maintenance procedures, and are required to work while turning pages required for the maintenance. Maintenance work becomes very troublesome.

The present invention has been made in view of the above points, and its object is not only to infer the cause of a failure, but also to locate the location of the failure on a circuit or the mounting position of a device to be the failure. Can be easily found,
Another object of the present invention is to provide an effective expert system that can easily maintain various devices.

[0007]

Means for Solving the Problems To achieve the above object, a solution taken by the invention according to claim 1 is a vehicle provided with an electric drive device driven by an electric circuit and a hydraulic drive device driven by a hydraulic circuit. In the above, it is assumed that a diagnostic system for diagnosing various devices of the electric drive device and the hydraulic drive device by a diagnostic unit.

[0008] The diagnostic unit is used for diagnosing service data such as electric circuit data, hydraulic circuit data, mounting position data of various devices and device data in the electric drive device and the hydraulic drive device, and diagnosing failure data and failure data. Storage means for storing data; input means for inputting device information and failure information necessary for the various devices as input information; and at least one of electric circuit data, hydraulic circuit data, and mounting data for various devices in the storage device. Selection means for setting a program by combining the two data and the data corresponding to the input information, and selecting individual data corresponding to the set program from the service data and the diagnostic data of the storage means. Displaying the individual data selected by the selection means on a screen It is obtained by the structure and a stage.

According to the first aspect of the invention, when various devices of the electric drive device and the hydraulic drive device, for example, maintenance of the hydraulic cylinder, are performed, device information of the hydraulic cylinder is input to the input means as input information. Then, a program is set by combining the input information, that is, device data corresponding to the device information of the hydraulic cylinder, and at least one of the electric circuit data, the hydraulic circuit data, and the mounting data of various devices, and a program is set. The individual data to be processed is selected from the service data in the storage means and displayed on the display means. Then, on a screen displaying at least one of electric circuit data, hydraulic circuit data, and mounting data of various devices, device data of the hydraulic cylinder corresponding to the input information is displayed, and a circuit of the hydraulic cylinder is displayed. The upper position or the mounting position of the mounting of the hydraulic cylinder can be easily found, and the maintenance of the hydraulic cylinder can be smoothly performed while watching the screen of the display means, as much as a service person having specialized knowledge.

Further, when various devices of the electric drive unit and the hydraulic drive unit, for example, a hydraulic cylinder breaks down,
When hydraulic cylinder failure information or failure information is input as input information to the input means, this input information, that is, failure data corresponding to the hydraulic cylinder failure information or failure data corresponding to the failure information, and electric circuit data and hydraulic circuit data A program is set in combination with at least one of the mounting data of various devices, and individual data corresponding to the program is selected from service data and diagnostic data in the storage means and displayed on the display means. You. Then, on a screen displaying at least one of electric circuit data, hydraulic circuit data, and mounting data of various devices, failure data or failure data of the hydraulic cylinder corresponding to the input information is displayed. The cause of the failure or the cause of the failure is inferred, and the location of the failure or the failure on the circuit of the hydraulic cylinder or the mounting position on the mounting of the hydraulic cylinder can be easily found, and the repair of the hydraulic cylinder is required. The operation is performed as smoothly as a serviceman while looking at the screen of the display means.

[0011] The solution means taken by the invention of claim 2 is:
In addition to the constituent features of the invention described in claim 1, diagnostic data corresponding to input information such as failure information of various devices is displayed on the screen of the display means, and the diagnostic data is displayed as a cause of failure of various devices or The configuration is such that a dialogue message is displayed in an interactive manner so as to arrive at the failure factor.

According to the second aspect of the present invention, by sequentially responding to the inquiry message displayed on the screen of the display means and proceeding to the preceding inquiry message, it is possible to reach the cause of failure or failure of various devices. Inference of the cause of failure or the cause of failure of various devices is performed more appropriately and quickly.

[0013] The solution taken by the invention according to claim 3 is as follows.
In addition to the constituent features of the invention described in claim 2, diagnostic data and at least one of electric circuit data, hydraulic circuit data, and mounting data of various devices are individually displayed on the screen of the display means. , The above electrical circuit data,
On the screen displaying the hydraulic circuit data and at least one of the mounting data of various devices, the contents of the dialogue-based inquiry message based on the diagnostic data are sequentially changed each time the dialogue with the next inquiry message is transferred. It is configured to be displayed on the display.

According to the third aspect of the present invention, the contents of the inquiry message during the dialogue are displayed on a screen displaying at least one of electric circuit data, hydraulic circuit data, and mounting data of various devices. Since it is displayed as it changes each time it moves to the questionnaire, the position on the circuit of the device that causes the failure or the failure or the mounting position on the mounting of the device can not be seen through the entire circuit diagram and mounting diagram on the paper. Thus, the device which can be easily and reliably found and which causes a failure or a failure is repaired very efficiently and appropriately while looking at the screen of the display means.

[0015] The solution means taken by the invention according to claim 4 is as follows.
In addition to the constituent features of the invention described in claim 2 or 3, the content of the inquiry message of the diagnostic data is updated by deleting, adding, etc. on the screen of the display means. The content of the diagnostic data in the storage means is updated by deleting, adding, or the like in accordance with the content of the diagnostic message of the diagnostic data updated on the screen of the display means.

Thus, in the invention according to claim 4, the contents of the diagnostic data in the storage means can be deleted or added, which can only be performed by a person having the specialized knowledge of a computer such as a developer of a diagnostic system. Since the update is easily performed on the screen displayed on the display unit of the diagnosis unit, for example, every time a failure repair of various devices is performed,
Updates such as adding or deleting the optimal medical questionnaire are easily performed on the screen. In addition, the periodic disclosure of storage means among a plurality of diagnostic systems makes it possible to equalize the level of each diagnostic system. It is made uniform while being raised to a level comparable to that.

The solution taken by the invention described in claim 5 is as follows.
In addition to the constituent features of the invention according to any one of the first to fourth aspects, the storage means stores estimated approximate data for estimating the cost required for repairing a failure of various devices. Then, the estimated approximate data of the device corresponding to the data selected from the service data and the diagnostic data is displayed on the screen of the display means.

According to the fifth aspect of the present invention, estimated approximate data corresponding to input information such as a cause of failure or a cause of failure of various devices is promptly displayed on the screen of the display means, and repairs which are the user's worries most. The cost estimate is quickly confirmed, and the user can quickly respond to the repair of the failed part.

The solution taken by the invention according to claim 6 is as follows.
In addition to the constituent features of the invention according to any one of claims 1 to 5, a vehicle history such as a vehicle inspection history, a mileage, and a repair history is input to the input means as input information. Is configured to select the data of the storage means based on the input information of (1).

According to the invention, the data in the storage means is quickly selected based on the vehicle history such as the vehicle inspection history, the mileage, and the repair history, and the time required for the data selection is effectively reduced. Be shortened.

According to a seventh aspect of the present invention, there is provided:
In addition to the constituent features of the invention according to any one of claims 1 to 6, the information corresponding to the input information includes at least one of electric circuit data, hydraulic circuit data, and mounting data of various devices. Is clearly indicated on the screen of the display means in a state where it is identified on the screen displaying.

According to the present invention, the information necessary for various devices is at least one of electric circuit data, hydraulic circuit data, and mounting data of various devices.
On the screen showing the two data, it is clearly indicated in a state distinguished by, for example, bold lines or color coding, so that even inexperienced persons can easily obtain the necessary data, and the necessary equipment maintenance can be performed while looking at the screen of the display means. It is performed smoothly.
In addition, the location on the circuit of the device that is the cause of the failure or the failure, or the mounting position of the device when mounted, can be more easily found, and repair of various devices can be performed more smoothly while looking at the screen of the display means. Will be

[0023] Further, in accordance with another aspect of the present invention, in addition to the constituent features of the invention according to any one of the first to seventh aspects, disassembly procedure data of various devices is stored in the storage means. Is stored. Then, on the screen of the display means, the disassembly procedure data of the device corresponding to the data selected from the service data and the diagnostic data is displayed as a moving image or a plurality of still images.

According to the invention described in claim 8, the disassembling procedure of various devices can be easily found from the moving image or the plurality of still images displayed on the display means, and the disassembling procedure on the screen of the display means can be performed. Disassembly work of various devices can be performed as easily as a service person with advanced expertise.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a vehicle diagnostic system according to an embodiment of the present invention. This diagnostic system 1 is about the size of an A4-size notebook computer, and is equipped with a garbage truck and a high-altitude working vehicle. Alternatively, it is provided so as to be portable to an outdoor repair site or a repair shop (not shown) for repairing a failure. The diagnostic system 1 includes, for example, various devices such as various switches and a timer of an electric drive device driven by an electric circuit, and a hydraulic drive device driven by a hydraulic circuit in a specially equipped vehicle such as a garbage truck and an aerial work vehicle. A diagnostic unit 2 is provided for diagnosing various devices such as a press cylinder and a hydraulic motor in detail.

The diagnosis unit 2 includes a storage unit 3 for storing data of various devices, an input unit 4 for inputting information necessary for various devices, and a selection for selecting necessary data from the data of the storage unit 3. Means 5 and a CRT display device 7 as a display means for displaying the selected data.

The individual means will be specifically described.
As shown in FIG. 2, the storage means 3 includes a maintenance procedure database 31a for storing maintenance procedure data such as mounting data, mounting position data, and apparatus data of various devices;
A circuit diagram database 32a for storing circuit diagram data such as sequence data (electric circuit data) and piping data (hydraulic circuit data), a countermeasure action database 33a for storing countermeasure action data at the time of fault, fault data and fault data, etc. And a diagnostic knowledge database 34a for storing the diagnostic knowledge data.

The maintenance procedure data of the maintenance procedure database 31a is obtained from an original database 11b in which the contents of the maintenance procedure document 11a for each year of the garbage collection vehicle and the aerial work vehicle are edited on a disk by electronic data conversion and registered. After the data is converted and accumulated in the intermediate file 11c, the data is temporarily stored in the data input unit 10a of the administrator side terminal 16 of the diagnostic system 1, and the diagnostic system 1 is connected between the data input unit 10a and the maintenance procedure database 31a. Editing such as page layout by an administrator is performed. The circuit diagram data of the circuit diagram database 32a is
Sequence diagram 12a of electric drive device, piping diagram 12b of hydraulic drive device, and mounting diagram 12 of various devices for each vehicle type
e is converted from an original database 12c, which is edited and registered on a disc by electronic data conversion, and is converted into an intermediate file 12d, and then stored once in the data input unit 10a. The administrator of the diagnostic system 1 inputs and edits operation process lines and the like on the circuit with the diagram database 32a. The countermeasure data in the countermeasure countermeasure database 33a is converted from the original database 13b in which the content of the fault countermeasure manual 13a is edited on a disk by electronic data conversion and registered, and accumulated in the intermediate file 13c. The data is temporarily stored in the data input unit 10a, and input / edit such as countermeasures based on the diagnosis result by the administrator of the diagnostic system 1 is performed between the data input unit 10a and the countermeasure treatment database 33a. Further, the diagnostic knowledge data in the diagnostic knowledge database 34a is obtained by arranging the contents of the diagnostic knowledge book 14a and then creating a predetermined rule based on the possibility of causing failure or failure of various devices.
b, and the input / output and editing of predetermined rules by the administrator of the diagnostic system 1 are performed between the rule creating unit 10b and the diagnostic knowledge database 34a. The predetermined rule is a step-by-step medical question or check expression such that the possibility of causing failure or failure of various devices is sequentially eliminated based on the predetermined rule from the diagnostic knowledge data obtained from the contents of the diagnostic knowledge book 14a. Create a questionnaire, check this questionnaire or check-type questionnaire in order with a "yes" or "no" method, and proceed with it. I try to reach it. In this case, the administrator side terminal 16 can display data by basically the same operation as the worker side terminal 41, and the data input unit 10a and the rule creation unit 10b store the data in the storage unit of the administrator side terminal 16. A data maintenance program 10 is configured.

A plurality of still images (photographs) taken by the camera 15 are taken into the original database 11b for registering the maintenance procedure data and the original database 13b for registering the countermeasure data. These still images are edited on a disc by electronic data conversion and registered in the original databases 11b and 13b. The intermediate files 11c and 13c are used as data for appropriately supplementing the contents of the maintenance manual 11a and the failure countermeasure manual 13a. After being accumulated in the data input unit 10a
Is stored in

Further, the storage means 3 includes a failure case database 35a for storing past failure case data, and an estimate approximate database 37a for storing estimate approximate data.
And a vehicle history database 38a for storing vehicle history data. The failure case data in the failure case database 35a is obtained by converting the contents of a failure case book (not shown) describing the causes and failure factors of various devices in the past of the garbage collection vehicle and the aerial work vehicle into a disk by electronic data conversion. The data is converted from the original database (not shown) edited and registered in the intermediate file (not shown)
After that, the data once stored in the data input unit 10a of the administrator-side terminal 16 of the diagnostic system 1 is imported. The estimation estimation data of the estimation estimation database 31a is based on the contents of an estimation estimation document (not shown) that describes the component parts prices of various devices of the garbage collection vehicle and the aerial work vehicle, and costs required for replacement / repair work. The data is converted from an original database (not shown) edited and registered on a disc by electronic data conversion and accumulated in an intermediate file (not shown), and then the data input section of the administrator side terminal 16 of the diagnostic system 1 What has been once stored in 10a is loaded. The vehicle history data of the vehicle history database 38a is obtained by converting the mounting type and the year of the mounting object mounted on the chassis of the garbage collection vehicle A (shown in FIG. 10) and the aerial work vehicle by electronic data conversion. The data is converted from an original database (not shown) edited and registered on the disc and accumulated in an intermediate file (not shown), and then temporarily stored in the data input unit 10a of the administrator-side terminal 16 of the diagnostic system 1. What was done is taken in. In this case, the countermeasure treatment database 33a and the diagnostic knowledge database 34
a, the failure case database 35a and the estimate estimation database 37a are linked to each other so that data can be handled, so that the remaining database data can be appropriately extracted from the data of one database. Also,
Maintenance point database 31a, circuit diagram database 32
a, the estimation approximate database 37a and the vehicle history database 38a are also linked so as to correspond to data, so that data of the remaining database can be appropriately extracted from data of one database. That is,
Each of the databases 31a to 35a, 37a, and 38a is linked so as to correspond to data. In this case, the maintenance procedure data and the circuit diagram data are treated as service data, and the countermeasure action data, diagnosis knowledge data, and failure case data are treated as diagnostic data. The estimated estimation data and the vehicle history data are treated as both service data and diagnostic data.

The input means 4 includes an operator terminal 41 having a keyboard. The equipment information such as maintenance procedure information, circuit diagram information, estimated approximate information and vehicle history information of the above-mentioned various equipment, and failure information such as countermeasure treatment information and diagnosis knowledge information are provided by a worker using a keyboard operation by a service described later. The information is input to the data program 51 and the failure diagnosis program 52 as input information.

The selection means 5 has a service material program 51 and a failure diagnosis program 52. The service guide program 51 is connected to the maintenance point database 31a, the circuit diagram database 32a, the estimate rough database 37a, and the vehicle history database 38a. The failure diagnosis program 52 includes:
The countermeasure treatment database 33a and the diagnostic knowledge database 34a are connected. In the selection means 5, at least one of sequence data (electric circuit data), piping data, and mounting data of various devices, maintenance instruction information of various devices input by a keyboard operation by an operator, circuit diagram information , Equipment information such as estimate estimation information and vehicle history information, and countermeasure action information,
A program is set in combination with data corresponding to failure information such as diagnostic knowledge information. Individual data corresponding to the set program is stored in service data (maintenance procedure data, circuit diagram data, estimate The selection is made from among approximate data and vehicle history data) and diagnostic data (measure action data and diagnostic knowledge data).

The CRT display device 7 displays individual data selected by the selection means 5, for example, a diagnostic sheet (causes of failures / failures), a countermeasure method, a sequence operation process line, a piping operation process line, and a maintenance procedure. ,
The data corresponding to the input information such as the device mounting position, the approximate estimation and the disassembly procedure, and at least one of the sequence diagram 12a, the piping diagram 12b, and the mounting diagram 12e are displayed on the screen. The CRT display device 7 is configured so that its screen can be appropriately switched from a single display of the entire area to a vertically divided display or the like.

Next, the operation procedure of the diagnostic system 1 in the case of performing maintenance and failure diagnosis of various devices such as the electric drive device and the hydraulic drive device of the refuse collection vehicle A will be described with reference to FIGS.
7 will be described in order.

First, a description will be given of a case where various devices such as an electric drive device and a hydraulic drive device of the garbage collection vehicle A are maintained. As shown in FIG.
A vehicle type selection screen is displayed on the screen, and on this screen, a command of the corresponding “garbage collection vehicle” of the “garbage collection vehicle” and the “aerial work vehicle” is clicked (input) using the keyboard of the worker side terminal 41. Then, a screen showing a list of types of the garbage truck A is displayed on the CRT display device 7 as shown in FIG.

Next, on this screen, from among the types of garbage collection vehicles to be maintained, a command of the corresponding “1994-type standard type garbage collection vehicle” is clicked and selected, as shown in FIG. Thus, the screen showing the maintenance menu of the garbage truck A is displayed on the CRT display device 7. As a result, the vehicle history data corresponding to the type (mounting type) and year of the loading device serving as the body of the garbage collection vehicle A to be maintained is quickly selected in the vehicle history database 38a, and the garbage collection vehicle is selected. The transition to the maintenance menu A is quickly performed, and the time required for data selection can be effectively reduced.

Then, on the screen of the CRT display device 7 displaying the maintenance menu of the garbage truck A,
"Schematic configuration and operation mechanism", "Precautions for maintenance", "Hydraulic piping and components", "Electrical wiring and components", "Each component adjustment procedure", "Inspection and maintenance", "Piping diagram", "Sequence" Click on the “Schematic Configuration and Operating Mechanism” command from among “Figure”, “Dust Collection Vehicle Body Type” and “Troubleshooting (Fault Diagnosis)” to select it and display it on the CRT display device 7 as shown in FIG. Garbage truck A
A screen showing the schematic configuration and the operating mechanism of is displayed. On this screen, click and select the command of the corresponding "operation unit" among "each unit name", "operation unit", "loading mechanism", "discharge mechanism" and "safety device", and select the CRT display device. 7, as shown in FIG.
Is displayed as a still image. At this time,
CRT display device 7 showing the operation unit of garbage truck A
On this screen, commands of "item list", "chapter list", "piping", "sequence", "print", "maintenance menu", and "system shutdown" are displayed.
When a "print" command is clicked on the screen of the CRT display device 7 showing the operation unit of the garbage truck A, the screen displayed on the CRT display device 7 is printed.

Thereafter, the CR indicating the operation unit of the refuse collection vehicle A
On the screen of the T display device 7, when a command of "piping" is clicked, as shown in FIG.
On the CRT display device 7, the screen showing the piping diagram 12b of the garbage collection vehicle A is displayed instead of the screen showing the operation unit. In this piping diagram 12b, the display size can be changed by specifying the display magnification.
If only part of the display is displayed on the screen of the CRT display device 7 and the display size can be changed by designating the display magnification in consideration of the display magnification, the screen is scrolled to display the undisplayed part of the piping diagram 12b. Is displayed.

At this time, the CR shown in FIG.
On the screen of the T display device 7, a command for inputting the “process” of the loading device is displayed. When information relating to “down” is input as input information to the command of the “process”, the “down” process is performed. And the individual data corresponding to the program set by the combination of the piping data and the piping data are selected from the circuit diagram database 32a. Thick line (indicated by a thick line in the figure)
, The piping operation process line in the low-pressure line is clearly indicated by a bold line (indicated by a bold line). Further, when information relating to another process is input, individual data corresponding to a program set by a combination of data corresponding to the other process and piping data is similarly selected from the circuit diagram database 32a. , The piping operation process lines in the high-pressure line and the low-pressure line will be clearly indicated by the bold red line and the bold blue line, respectively, and only by looking at the piping FIG. It is possible to judge the distribution system and the high / low pressure line as smoothly as a service person.

The commands of "sequence", "print" and "return" are displayed on the screen of the CRT display device 7 shown in the piping FIG. 12b.

Then, the CRT shown in FIG.
On the screen of the display device 7, "sequence"
Is clicked, the CR is displayed as shown in FIG.
In the T display device 7, the screen showing the sequence diagram 12a of the garbage collection vehicle A is displayed instead of the screen showing the piping diagram 12b. This sequence diagram 12a
Can change the display size by specifying the display magnification, but only a part of the CR
If the display size is displayed on the screen of the T display device 7 and can be changed by specifying the display magnification, the screen is scrolled to display the undisplayed portion of the sequence diagram 12a. At this time, on the screen of the CRT display device 7 showing the sequence diagram 12a, when information relating to "loading / lowering" is input to the command of "loading / lowering" of the loading device, the process of "loading / lowering" is started. Individual data corresponding to a program set by a combination of corresponding data (sequence operation process line) and sequence data is stored in the circuit diagram database 32a.
And the sequence operation process line indicating the process of “loading / descending” is clearly indicated by a thick line on the sequence diagram 12a. Further, the CR shown in FIG.
On the screen of the T display device 7, a command for inputting an "LS / PXS switch" and a "relay timer" is displayed. The commands of the "LS / PXS switch" are "LS-6" and "relay timer". When the device information of "R7" is input to the command of "" as input information, data corresponding to the process of "loading / descending" (sequence operation process line) and data corresponding to "LS-6" and "R7" Individual data corresponding to the program set by the combination of the (installation position data) and the sequence data is selected from the circuit diagram database 32a and the maintenance procedure database 31a, and is related to the "loading / descending" process. On the sequence diagram 12a in which the sequence operation process line is clearly shown, the positions of “LS-6” and “R7” are colored. It is shown. When information on other processes or device information such as another LS / PXS switch and relay timer is input, a program corresponding to a program set by a combination of data corresponding to other processes and sequence data is obtained. Individual data is similarly selected from the circuit diagram database 32a and the maintenance procedure database 31a. Sequence operation process lines indicating other processes are clearly indicated by thick lines on the sequence diagram 12a, and the positions of the corresponding devices are colored. Will be specified. Thus, by simply looking at the sequence diagram 12 a on the screen of the CRT display device 7, it is possible to smoothly determine the power supply system of each step and the position of the corresponding device smoothly as compared with a service person having advanced expertise. Can be.

When the user clicks around the corresponding device which is colored and specified on the sequence diagram 12a, FIG.
As shown in FIG. 0, the CRT display device 7 has a screen shown in a mounting diagram 12e showing a state in which each electric component is actually attached to a 1992-type standard garbage truck A, and a screen showing a sequence diagram 12a. Will be displayed instead of. At this time, when a command of "LS-7" is input to a command of "electric component" on the screen shown in the mounting diagram 12e of the garbage truck A, data (attachment position data) corresponding to "LS-7" is obtained. The individual data corresponding to the program set in combination with the mounting data is selected from the maintenance procedure database 31a, and on the screen of the mounting diagram 12e shown in FIG. The mounting position will be clearly indicated by color coding,
When a command of another electrical component is input to the command of “electric component”, individual data corresponding to a program set by a combination of data corresponding to the other electrical component and mounting data is stored in the maintenance procedure database 31a. And the mounting position of the corresponding electric component is clearly indicated by coloring on the screen shown in FIG. 12e.

Thus, in the case where various devices such as an electric drive device and a hydraulic drive device are to be maintained, the keyboard of the operator side terminal 41 is operated to input information on the electric components, processes and devices. A program is set by combining data of electric parts, processes or devices corresponding to the information, piping data, sequence data or mounting data, and individual data corresponding to the program is stored in the service data of the storage means 3. The selected item is displayed on the screen of the CRT display device 7. Then, a screen showing the piping data, the sequence data or the mounting data, that is, the piping diagram shown in FIG.
b, on the screen of the CRT display device 7 displaying the sequence diagram 12a of FIG. 9 or the mounting diagram 12e shown in FIG.
Sequence operation process line in descending process, sequence diagram 12
The positions of LS-6 and R7 on a or the mounting position of LS-7 on the mounting diagram 12e are displayed, so that the position on the circuit or the mounting position of the corresponding device can be easily found. Thus, the maintenance of the corresponding device can be carried out smoothly as well as a service person having specialized knowledge while watching the screen of the CRT display device 7.

Further, on the screen of the CRT display device 7 shown in FIG.
The commands of "print", "return" and "maintenance menu" are displayed. When the command of "return" is clicked, the screen returns to the sequence diagram 12a shown in FIG. The screen returns to the screen showing the maintenance menu of the garbage truck A shown in FIG.

On the other hand, a description will be given of a case where failure diagnosis of various devices of the electric drive device and the hydraulic drive device of the trash collection vehicle A of the 1992 type is performed. Here, a case will be described in which the loading device does not perform the loading operation (the accelerator blows, the reversal is performed, but the descending operation is not performed).

First, the keyboard of the worker-side terminal 41 is operated in the same manner as in the case where the electric drive device and the hydraulic drive device of the dust collection vehicle A are maintained as described above, and the dust collection vehicle A shown in FIG. A screen showing the maintenance menu is displayed on the CRT display device 7. On this screen, a command of “Troubleshooting (failure diagnosis)” is clicked and selected, and the CRT display device 7 is displayed as shown in FIG.
As shown in FIG. 5, a screen showing a failure diagnosis for troubleshooting the garbage truck A is displayed. At this time, on the screen showing the failure diagnosis, the check items before diagnosis and the confirmation items of loading-related failures and "all operation failures", "loading failures", "discharge failures", "other defects" And Reference
Command is displayed.

Next, on this screen, after confirming all the inspection confirmation items before diagnosis and the confirmation items of the loading-related failure, for example, when there is a failure in the loading operation of the loading device, the “loading failure” is displayed. Click the command on the right, and on the right side, the details of the failure diagnosis of "poor loading" will be shown in detail. "No loading operation (neither accelerator nor reverse operation)", "No loading operation (accelerator blows , No reversing operation), "No loading operation (accelerator blows, does not start operation from reversal)", "Loading does not operate (accelerator blows, reverses but does not descend)" Then, click on the command “No loading operation (accelerator blows, reverses but does not descend)” to select it. At this time, the commands of “piping”, “sequence”, “mounting diagram”, “return” and “end” are displayed on the screen of the CRT display device 7.

Then, a command of "not loading operation (accelerator blows, reverses but does not descend)" is clicked on the keyboard of the worker side terminal 41, and FIG.
As shown in FIG. 2, the CRT display device 7 displays a screen indicating the cause of trouble in troubleshooting the refuse collection vehicle A. Specifically, on the screen on the upper left side of the upper half of the CRT display device 7, the failure data in the case where the loading operation is not performed (the accelerator blows, the reversal is performed but the lowering operation is not performed) is described in accordance with the diagnostic sheet as “the lowering operation when operated alone. Do you want to do that? Also, by clicking the command "No loading operation (accelerator blows, reverses but does not move down)" command, "loading does not operate (accelerator blows, reverses but does not move down)" The data (diagnosis data and failure case data) corresponding to the contents of the medical questionnaire and the individual data corresponding to the program set by combining the circuit diagram data are stored in the diagnosis knowledge database 34a and the countermeasure treatment database 3
3a, the failure case database 35a and the circuit diagram database 32a, the sequence diagram 12a is displayed on the lower half screen of the CRT display device 7, and the contents of the inquiry message are displayed on the screen showing the sequence diagram 12a. In other words, the portion related to the lowering operation of the loading device is clearly indicated by the thick line. If the contents of the inquiry are related to hydraulic equipment, the piping diagram 12b is displayed on the lower half screen of the CRT display device 7 as in the sequence diagram 12a. At this time, CR
On the screen showing the cause of failure of the T display device 7,
A "Yes" or "No" response command is displayed in response to the inquiry message "Does lowering work when operated alone?" Also, on the CRT display device 7, commands of "chart", "piping", "sequence", "mounting diagram", "print", "return" and "end" are displayed.

Thereafter, by responding to the inquiry message displayed on the left screen of the CRT display device 7 with a reply command of "Yes", as shown in FIG.
On the left screen of the display device 7, an inquiry message of "Is LS-3 ON at the descent start position?" Then, it corresponds to the program set by combining the data (diagnosis data and failure case data) corresponding to the content of the inquiry message "Is LS-3 ON at the descent start position?" Individual data is selected from the diagnostic knowledge database 34a, the countermeasure action database 33a, the failure case database 35a, and the circuit diagram database 32a.
On the screen of the sequence diagram 12a displayed on the lower half of the T display device 7, the contents of the inquiry message, that is, LS
-3 is clearly indicated in a state identified by a thick line. Then, by responding to the inquiry message “Is LS-3 ON at the descent start position” on the left screen of the CRT display device 7 with a “No” reply command,
As shown in FIG. 13, the diagnosis result is displayed on the right screen of the CRT display device 7, the cause of the failure, that is, the defective portion is displayed as “attachment adjustment of the limit switch LS- 3”, and a countermeasure for instructing the countermeasure is provided. Action ”command is displayed.

Thereafter, when a command for "measures" is clicked on the screen indicating the cause of the failure of the CRT display device 7, as shown in FIG. 14, the mounting of the limit switch LS-3 and the cam is adjusted. As necessary data, a maintenance procedure for explaining the adjustment of the LS-3 and the cam and a still image obtained by photographing the vicinity of the mounting position of the LS-3 are displayed on the entire screen of the CRT display device 7 together. At this time, the LS-
The commands "Piping", "Sequence", "Assembly drawing", "Print", "Return" and "End" are displayed on the screen showing the adjustment procedure of 3 and the cam, and "Piping" as necessary. By clicking the command of ", sequence" or "mounting diagram", data (diagnosis data and failure case data) corresponding to the contents of the maintenance procedure for explaining the adjustment of the LS-3 and the cam, the piping data and the sequence Individual data corresponding to a program set in combination with data or mounting data is stored in the diagnostic knowledge database 34a and the countermeasure action database 33.
a, selected from the failure case database 35a, the circuit diagram database 32a, and the maintenance procedure database 31a, and displayed on the screen in the lower half of the CRT display device 7,
The piping diagram 12b shown in FIG. 8, the sequence diagram 12a shown in FIG. 9, or the mounting diagram 12e shown in FIG. 10 is displayed, and the piping diagram 12b and the sequence diagram 12 are displayed.
a, or on the screen shown in FIG.
The part related to the contents of the maintenance procedure for explaining the adjustment of S-3 and the cam is clearly indicated by a bold line or color coding. Accordingly, it is possible to infer that the defective portion in the case where the loading operation is not performed (the accelerator is blown, the reversal is performed until the reversal is performed, but the descending operation is not performed) is the limit switch LS-3 and the cam, and the defective portion is the limit switch. Switch LS-3 and cam position on circuit or mounting diagram 1
The position of mounting at 2e can be easily found, and the limit switch LS-3 and the adjustment and repair of the cam can be performed smoothly as well as a service person with advanced expertise while looking at the upper and lower screens of the CRT display device 7. Can be.

The LS- of the CRT display device 7
On the screen showing the adjustment procedure of 3 and the cam, a command of "disassembly procedure" (not shown) is displayed.
Is clicked, the disassembly procedure data of the corresponding device such as the LS-3 and the cam is displayed on the screen of the CRT display device 7 as a plurality of frame-by-frame still images. Thereby, CR
The disassembly procedure of the LS-3 and the cam and the like can be easily found from the still images of the plurality of frame-advanced photographs displayed on the screen of the T display device 7, and the LS-3 and the cam are disassembled according to the disassembly procedure on the screen. Can be easily disassembled by a service person with advanced expertise.

Further, the LS of the CRT display device 7
On the screen showing the adjustment procedure of the -3 and the cam, a command of "estimate estimation" (not shown) is also displayed. When this "estimate estimation" command is clicked, LS-3 and EST are displayed on the screen of the CRT display device 7. The estimated cost data of the repair cost such as the price of the cam and the work cost required for repairing the cam are displayed. As a result, the approximate estimate of the device such as the LS-3 and the cam, which is the defective portion, becomes CR
Since the information is displayed on the screen of the T display device 7, it is possible to quickly check the repair cost that is the most worrisome for the user, and to promptly respond to the repair of the failed part.

On the other hand, when the "chart" command is clicked on the initial screen of the CRT display device 7 indicating the cause of the defect in FIG.
As shown in the figure, the diagnostic data corresponding to the case where the loading operation is not performed (the accelerator blows, the reversal is performed, but the descending operation is not performed) is displayed on the upper half screen of the CRT display device 7 according to the diagnosis sheet in the form of a chart-type inquiry message. To display,
By responding to this chart-type questionnaire in order and proceeding,
The failure factor in the case where the loading operation is not performed (the accelerator is blown, the reversal is performed until the reversal is not performed) can be reached. On the other hand, the lower half screen of the CRT display device 7 displays a portion related to the lowering operation of the loading device in the sequence diagram 12a as in FIG. At this time, on the screen of the CRT display device 7, in addition to "Yes" and "No" responding to the chart-type inquiry message, "piping", "sequence", "mounting diagram",
"Print", "Back" and "End" commands are also displayed. In this case, the chart-based questionnaire during the dialogue is indicated in bold type, and each time the dialogue with the previous chart-type questionnaire is started, the boldface type changes, and which chart-type questionnaire question is currently being asked. You can tell at a glance if there is. Also, each time the chart-type inquiry message shifts to the dialogue with the previous chart-type inquiry message on the screen of the sequence diagram 12a shown in the lower half of the CRT display device 7, the contents correspond to the shifted chart-type inquiry message. Individual data corresponding to a program set by combining data (diagnosis data and failure case data) and sequence data is stored in the diagnostic knowledge database 34.
a, a part selected from the countermeasure action database 33a, the failure case database 35a and the circuit diagram database 32a and corresponding to the contents of the chart-type medical inquiry on the screen showing the sequence diagram 12a in the lower half of the CRT display device 7. Are identified by a bold line, and the identification by the bold line is changed to a portion corresponding to the contents each time the dialogue with the previous chart type inquiry message is made. The identification of the part corresponding to the contents of the chart-type medical questionnaire changes similarly in the piping diagram or the mounting diagram. This makes it possible to easily and reliably find the position on the circuit of the device or the mounting position of the device, which is the defective portion, without having to follow the entire sequence diagram, piping diagram and mounting diagram on the paper. It is possible to repair the defective device very efficiently and appropriately while looking at the screen of the device 7.

As shown in FIG. 16, an administrator terminal 16 for storing the data maintenance program 10 is provided.
Now, the CR of the worker terminal 41 displayed in FIG.
Updating by deleting, adding, etc., the chart-type inquiry message on the screen of the T display device 7 can be performed on the screen of the CRT display device 70 of the administrator-side terminal 16.

Specifically, a screen showing a failure diagnosis for troubleshooting of the garbage collection vehicle A as shown in FIG. 11 is displayed on the CRT display device 70 of the manager terminal 16, and the screen showing the failure diagnosis is displayed on the screen. In, for example, click the command of "poor loading", on the right side,
A command of "not loading operation (no accelerator is blown and no reversing operation)" indicating a failure diagnosis of "improper loading" is clicked on the keyboard, and as shown in FIG. 16, the loading operation is not performed (the accelerator is not blown). Display the screen of the chart-type medical question sentence in the case of no reversal operation. At this time, on the screen of the chart-type medical questionnaire, the commands "Add" and "Delete" of the chart-type medical questionnaire are displayed, and "Open list", "Save to list", "Back" and The command "End maintenance" is displayed.

Then, on the screen of the CRT display device 70 of the administrator side terminal 16 shown in FIG. 16, change the diagnosis to the second "" No operation "" in the chart-type medical inquiry and proceed. When updating the chart-type medical questionnaire, change the diagnosis to "No operation" and proceed to the position of the dialogue with the chart-type medical questionnaire, and then "Delete" After clicking the command
Clicking the "Add" command adds a chart-type inquiry to the user to update "Is the FS fuse conductive?" On the screen of the CRT display device 70 as shown in FIG. Display the screen for filling in the necessary items for the expression questionnaire in the center. On this required item entry screen, the updated chart-type medical questionnaire contains “Question”, “Result”,
Select "Circuit" or "Other phenomenon" and enter that the display diagram is "Sequence diagram" and the circuit name is "Electrical and loading main circuit". In addition, when a "yes" response is made to the updated chart-type inquiry message, the process proceeds to the 8th chart-type inquiry message, and when a "no" response is made, the process proceeds to the 12th chart-type inquiry message (not shown). Write it down. As a result, the diagnostic data of the rule creator 10b of the data maintenance program 10 is updated in accordance with the content of the inquiry message updated on the screen of the CRT display device 70 of the administrator terminal 16, so that the diagnostic system 1 Updating by deleting or adding the contents of diagnostic data, which could only be done by a person with computer expertise, such as the developer of the above, is displayed on the screen displayed on the CRT display device 70 of the administrator terminal 16. Each time a failure repair of a component part of various devices is performed, an optimal update by adding or deleting an inquiry message is performed by the CR of the administrator terminal 16.
This can be easily performed on the screen of the T display device 70. In addition, the regular data maintenance program 10 (data input unit 10)
a and the disclosure of the rule creation unit 10b), the level of each manager-side terminal 16 can be equalized, and the difference between the individual knowledge of the worker at the site is comparable to that of a serviceman having a high level of specialized knowledge. It can be made uniform while raising it to the extent.

It should be noted that the present invention is not limited to the above-described embodiment, but includes various other modifications. For example, in the above-described embodiment, the diagnostic data of the rule creator 10b of the data maintenance program 10 is updated in accordance with the content of the inquiry message updated on the screen of the CRT display device 70 at the administrator-side terminal 16. However, the chart-type inquiry message may be updated on the screen of the chart-type inquiry message on the CRT display of the worker side terminal by deleting, adding, or the like. However, in this case, a security function that requires the input of a predetermined command on the screen of the chart-type inquiry message is added, and the diagnostic data in the storage unit is updated without permission according to the updated content of the inquiry message. Need to regulate.

In the above embodiment, the garbage collection vehicle A
The operation procedure for maintenance and failure diagnosis of various devices of the electric drive device and the hydraulic drive device of the above has been described, but the maintenance and failure diagnosis of various devices of the electric drive device and the hydraulic drive device of the aerial work vehicle have been described. Is performed according to a similar operation procedure.

Further, in the above-described embodiment, the "body type and year" is selected on the screen of the CRT display device 7 showing the type list of the garbage truck A, and the vehicle history data is selected. The vehicle history data may be selected more effectively by inputting the vehicle inspection history, the mileage, the repair history, and the like.

Further, in the above embodiment, a plurality of still images (photographs) taken by the camera 15 are taken into the original database 11b for registering the maintenance procedure data and the original database 13b for registering the countermeasure treatment data. A moving image taken by a video camera, such as a device disassembly procedure, is converted into data from a predetermined original database registered and edited on a disc by electronic data conversion and integrated into a predetermined intermediate file. The information may be temporarily stored in the data input unit of the administrator side terminal and then taken into a predetermined database of the operator side terminal.

[0062]

As described above, according to the vehicle diagnostic system according to the first aspect of the present invention, when maintenance or repair of various devices of the electric drive device and the hydraulic drive device is performed, the device information or the failure of the device is performed. By displaying, on a screen of a display unit, individual data of a program set by combining data corresponding to the information, electric circuit data, hydraulic circuit data, and at least one data of mounting data of various devices, Not only maintenance of equipment or inference of the cause of failure or failure factor, but also the location of the failure or the location of the failure equipment that is the failure location on the circuit or installation position can be easily found, and it is as smooth as a service person with specialized knowledge Work can be done.

According to the vehicle diagnostic system according to the second aspect of the present invention, the system sequentially responds to the diagnostic message of the diagnostic data displayed on the display means in an interactive manner in order and proceeds to proceed to the cause of failure or failure of various devices. It is possible to reach the cause and infer the cause of failure or the cause of failure of various devices more appropriately and promptly.

According to the vehicle diagnostic system according to the third aspect of the present invention, only the contents of the dialogue message during the dialog are sequentially displayed on the screen of the display means, so that a device that becomes a cause of failure or a cause of failure is displayed. The position on the circuit or the mounting position can easily and reliably be found, and the equipment that causes the failure or the failure can be repaired very efficiently while looking at the screen of the display means.

According to the vehicle diagnostic system according to the fourth aspect of the present invention, an update by deleting or adding data contents of the storage means, which can be performed only by a person having the expert knowledge of the computer, is displayed on the screen of the display means. It is possible to easily perform the update such as adding or deleting an optimal medical questionnaire. In addition, the regular disclosure of storage means between multiple diagnostic systems enables the level of each diagnostic system to be uniform, and the difference between the individual knowledge of each worker at the work site is inferior to that of service personnel with advanced expertise. It is possible to make it uniform while raising it to an unacceptable degree.

According to the vehicle diagnostic system of the present invention, the estimated approximate data of the device corresponding to the data of the input means is displayed on the display means, so that the user can immediately respond to the trouble location and the repair cost. This makes it possible to promptly respond to the repair of the failed part by the user according to the estimate of the repair cost.

According to the vehicle diagnosis system of the present invention, the data in the storage means is quickly selected based on the vehicle history such as the vehicle inspection history, the mileage, and the repair history, and the data selection is required. The time can be effectively reduced.

According to the vehicle diagnostic system of the present invention, the data necessary for the equipment is displayed on the screen showing at least one of the electric circuit data, the hydraulic circuit data, and the mounting data of various kinds of equipment on the screen. Since it is clearly indicated on the screen of the display means in a state distinguished by display or color coding, even inexperienced people can easily identify the necessary equipment on the circuit or mounting, and the maintenance of various equipment can be performed more smoothly At the same time, repair of various devices can be performed more smoothly.

Further, according to the vehicle diagnostic system of the present invention, the disassembling procedure of various devices can be easily determined by the moving image or the plurality of still images displayed on the display means, and the display screen of the display means In accordance with the disassembly procedure, the disassembly of various devices can be performed easily as easily as a service person having a high level of specialized knowledge.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a worker side terminal.

FIG. 2 is an explanatory diagram illustrating storage of data in a manager side terminal and a worker side terminal.

FIG. 3 is a vehicle type selection screen displayed on a CRT display device of an operator terminal.

FIG. 4 is a screen showing a list of types of refuse collection vehicles displayed on a CRT display device of an operator terminal.

FIG. 5 is a screen showing a maintenance menu of a garbage truck displayed on a CRT display device of an operator terminal.

FIG. 6 is a screen showing a schematic configuration and an operating mechanism of a refuse collection vehicle displayed on a CRT display device of an operator terminal.

FIG. 7 is a screen showing a schematic configuration of a refuse collection vehicle and an operation unit of an operation mechanism displayed on a CRT display device of an operator terminal.

FIG. 8 is a screen showing a piping diagram displayed on a CRT display device of the worker terminal.

FIG. 9 is a screen showing a sequence diagram displayed on the CRT display device of the worker terminal.

FIG. 10 is a screen showing a mounting view of each electric component of the garbage truck displayed on the CRT display device of the worker terminal.

FIG. 11 is a screen showing a failure diagnosis for troubleshooting the refuse collection vehicle displayed on the CRT display device of the worker terminal.

FIG. 12 is a screen displayed on the CRT display device of the worker terminal and showing the cause of trouble in troubleshooting the refuse collection vehicle.

FIG. 13 is a screen showing a diagnosis result of a failure factor of troubleshooting of the garbage truck displayed on the CRT display device of the worker terminal.

FIG. 14 is a screen showing a procedure for adjusting LS-3 and a cam based on a diagnosis result of a cause of a defect displayed on a CRT display device of an operator terminal.

FIG. 15 is a diagram showing a screen of a chart-type medical inquiry sentence displayed above and below a CRT display device of the worker terminal and a screen showing a sequence diagram.

FIG. 16 is a screen of a chart-type medical inquiry sentence displayed on the CRT display device of the administrator terminal.

FIG. 17 is a screen for explaining updating of a chart-type medical inquiry sentence displayed on the CRT display device of the administrator terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Diagnostic system 2 Diagnostic part 3 Storage means 4 Input means 5 Selection means 6 Output means 7 CRT display device (Display means) A Dust collection vehicle (Vehicle)

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI G06F 11/22 360 G06F 11/22 360D

Claims (8)

[Claims] 1. A diagnosis system for diagnosing various devices of the electric drive device and the hydraulic drive device by a diagnosis unit in a vehicle including an electric drive device driven by an electric circuit and a hydraulic drive device driven by a hydraulic circuit. The diagnostic unit stores service data such as electric circuit data, hydraulic circuit data, mounting position data of various devices and device data, and diagnostic data such as failure data and failure data in the electric drive device and the hydraulic drive device. Storage means, input means for inputting device information and failure information necessary for the various devices as input information, at least one of electrical circuit data, hydraulic circuit data, and mounting data of various devices of the storage means,
Selecting means for setting a program in combination with data corresponding to the input information and selecting individual data corresponding to the set program from service data and diagnostic data of the storage means; And a display means for displaying individual data selected on the screen on a screen. 2. A screen of the display means displays diagnostic data corresponding to input information such as failure information of the various devices, and the diagnostic data reaches a cause of failure or a cause of failure of the various devices. 2. The vehicle diagnosis system according to claim 1, wherein the vehicle diagnosis system is displayed as an inquiry message of a system in which dialogue is performed in order. 3. The screen of the display means individually displays the diagnostic data and at least one of the electric circuit data, the hydraulic circuit data, and the mounting data of various devices. On the screen displaying at least one of the data, the hydraulic circuit data, and the mounting data of various devices, the contents of the dialogue-based inquiry message based on the diagnostic data are sequentially changed each time the dialogue is transferred to the next inquiry message. The vehicle diagnostic system according to claim 2, wherein the system is displayed in a transitional manner. 4. The contents of the medical question sentence of the diagnostic data are updated on the screen of the display means by deletion, addition, etc., and the content of the medical inquiry sentence updated on the screen of the display means is provided. 3. The system according to claim 2, wherein the contents of the diagnostic data in the storage means are updated by deleting, adding, or the like according to the contents.
A vehicle diagnostic system according to claim 3. 5. The storage means stores estimated data for estimating costs required for repairing the various devices, and a screen of the display means is selected from the service data and the diagnostic data. The vehicle diagnosis system according to any one of claims 1 to 4, wherein estimated approximate data of a device corresponding to the obtained data is displayed. 6. A vehicle history, such as a vehicle inspection history, a mileage, and a repair history, is input to the input means as input information.
The vehicle diagnostic system according to any one of claims 1 to 5, wherein data in the storage means is selected based on the input information of the vehicle history. 7. On a screen of the display means, data corresponding to the input information is identified on a screen displaying at least one of the electric circuit data, the hydraulic circuit data, and the mounting data of various devices. The vehicle diagnostic system according to any one of claims 1 to 6, wherein the vehicle diagnostic system is specified in a state where the vehicle diagnosis is performed. 8. The disassembly procedure data of the various devices is stored in the storage unit, and the disassembly procedure of the device corresponding to the data selected from the service data and the diagnostic data is displayed on the screen of the display unit. The vehicle diagnostic system according to any one of claims 1 to 7, wherein the data is displayed as a moving image or a plurality of still images.