JPH06288873A - Fault diagnosis system - Google Patents

Abstract

PURPOSE:To quickly and accurately grasp the fault part, the fault content and the like of a vehicle at the inside of the vehicle or at the outside of the vehicle. CONSTITUTION:A navigation apparatus is provided with a navigation control part 4 to which information on the present position, the running situation and the like of a vehicle 2 is input from a first sensor 8 and a second sensor 9 and to which fault signals and information required for a fault diagnosis are input from control units 11 to 13 when a fault is caused in the mechanism part of the vehicle 2, with a display screen 6 and with a memory 10. When the fault signals are input from the control units 11 to 13, the navigation control part 4 stores, in the memory 10, the signals and the information, required for the fault diagnosis of the mechanism part of the vehicle, which has been taken into from the control units 11 to 13, it makes fault-related information on a fault part, a fault content and the like in the mechanism part of the vehicle 2, and it displays the information on the display screen 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a failure diagnosis system installed in a vehicle or a ship equipped with an outboard motor or installed in a repair shop, and more particularly, to a failure location or failure content of a mechanical portion of a vehicle or a ship. The present invention relates to a failure diagnosis system suitable for quick and accurate grasping.

[0002]

2. Description of the Related Art Conventionally, GPS (Global Position) has been used as a navigation device mounted on a vehicle.
ing Sensor) ・ Signal data from sign posts, etc., and map data by adding map data to vehicle behavior information such as direction, speed, and driving distance of the vehicle determined based on geomagnetic data and wheel speed differences. There is one that determines and displays the current position of the vehicle above. In this case, the navigation device normally provides various information such as map data, vehicle position, road condition, vehicle speed, direction, current time, time after the ignition key of the vehicle is turned on, and the position of a maintenance shop near the vehicle. Built in.

On the other hand, as a failure warning device mounted on a vehicle, for example, an engine mechanism / automatic mechanism (A
T) -There is a system in which when a failure occurs in a part related to an electronic control mechanism such as an anti-skid mechanism (ABS), a failure warning lamp is turned on to warn a vehicle driver of the occurrence of the failure.

[0004]

However, the above-mentioned prior art has the following problems. When the vehicle driver confirms the occurrence of a failure in the part related to the electronic control mechanism with the failure alarm lamp and brings the vehicle to a repair shop such as a dealer, the failure is reproduced even if the repair shop inspects the vehicle. In many cases, the problem is not solved, and thus it takes time to identify the location of the vehicle failure. In addition, since the above-mentioned failure alarm lamp is installed in a place where visibility is not good, such as inside the instrument panel, the vehicle driver will not be able to detect a failure until a considerable time has elapsed from the time when the failure occurred. Therefore, there is a problem in that it is impossible to detect a failure early. Further, conventionally, since the navigation device and the failure alarm device are only used individually,
There is a problem that it can be utilized only within the range of the functions of both these devices.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the disadvantages of the above-mentioned conventional examples, and in particular, it is possible to quickly and accurately grasp the failure location, failure content, etc. of the transportation means on the transportation means side or the outside of the transportation means. The purpose is to provide a failure diagnosis system.

[0006]

According to a first aspect of the present invention, a failure is installed in a transportation means such as a vehicle having a mechanism portion such as an engine, a control unit for controlling the mechanism portion, and a navigation device. A diagnostic system, wherein the navigation device detects a position, a traveling state, etc. of the transportation means, and a position of the transportation means from the detection portion.
A control unit to which information such as traveling status is input, and also a failure signal and information necessary for failure diagnosis are input from the control unit when the mechanical section of the transportation means fails, and the position and traveling status of the transportation means Information, and a storage unit for storing information necessary for failure diagnosis of the mechanism section of the transportation means, and when the control section inputs a failure signal from the control unit, the control section inputs the failure signal. A storage function for storing information such as the position and traveling status of the transportation means and information necessary for failure diagnosis of the mechanism section of the transportation means, which is input from the control unit, in the storage section, and the storage content of the storage section Based on the above, it is configured to have a calculation function for calculating failure-related information such as a failure location and failure content of the mechanism section of the transportation means. According to another aspect of the present invention, there is provided a failure including a failure diagnosis device detachably connected to a transportation means such as a vehicle having a mechanism unit such as an engine, a control unit for controlling the mechanism unit, and a navigation device. Diagnostic system,
The navigation device has a detection function for detecting the position, traveling condition, etc. of the transportation means, and a storage function for storing information on the position, traveling condition, etc., of the transportation device when the mechanical section of the transportation device fails. The failure diagnosis device inputs information such as the position and traveling status of the transportation means when the transportation means fails from the navigation device, and the failure signal and information necessary for the failure diagnosis from the control unit. An external control unit and a storage unit that stores information such as the position and traveling status of the transportation unit when the transportation unit fails, and information necessary for failure diagnosis of the mechanism unit of the transportation unit. When the controller receives a failure signal from the control unit, the transportation is performed when the mechanism of the transportation means, which is input from the navigation device, fails. Based on the storage function of storing in the storage unit the information such as the position and running condition of the stage and the information input from the control unit and necessary for the failure diagnosis of the mechanism section of the transportation means, It is configured to have a calculation function for calculating failure-related information such as a failure location and failure content of the mechanism section of the transportation means. This is intended to achieve the above-mentioned object.

[0007]

According to the present invention of claim 1, when the control unit of the transportation means outputs a failure signal to the control portion of the navigation device due to the occurrence of a failure in the mechanism portion of the transportation means, the control portion of the navigation device is controlled by the navigation device. Information such as the position and traveling status of the transportation means input from the detection unit of the device and information necessary for failure diagnosis of the mechanism unit of the transportation unit input from the control unit are stored in the storage unit. Further, the control unit of the navigation device calculates failure-related information such as a failure location / failure content of the mechanism section of the transportation means based on the storage content of the storage section. As a result, it is possible to accurately grasp in real time the location of the failure in the mechanism portion of the transportation means, the content of the failure in the failure location, and the like. Therefore, it is possible to solve the problem that it takes time to identify the failure point and the problem that the failure cannot be detected early as in the conventional case. According to the second aspect of the present invention, when diagnosing a failure of the mechanism portion of the transportation means, the failure diagnosis device is connected to the transportation means. The control unit of the failure diagnosis device collects information such as the position and traveling condition of the transportation means at the time of occurrence of a failure, which is input from the navigation device, and information necessary for failure diagnosis of the mechanism portion of the transportation means, which is input from the control unit. Store in the storage unit. Further, the control unit of the failure diagnosis device calculates failure-related information such as a failure location / failure content of the mechanism section of the transportation means based on the storage content of the storage section. As a result, it is possible to accurately understand in which part of the mechanism section of the transportation means the failure has occurred, the details of the failure in the failure occurrence location, and the like. Therefore, it is possible to solve the problem that it takes time to identify a failure point as in the conventional case.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment and a second embodiment to which the present invention is applied will be described below with reference to the drawings.

(1) First embodiment. The configuration of the navigation device having the failure diagnosis function and the main part of the vehicle in the first embodiment will be described with reference to FIGS. 1 and 2. The navigation device 1 is installed in the instrument panel section 3 on the front side of the driver's seat of the vehicle 2. Has been set up,
The navigation control unit 4, an operation display unit 7 having an operation switch 5 and a display screen 6, a first sensor 8, a second sensor 9, and a memory 10 are provided.

To explain in detail the configuration of the navigation device 1 and the essential parts of the vehicle, the navigation control unit 4 includes an operation display unit 7, a first sensor 8, a second sensor 9, a memory 10 and a first unit.
The control unit 11, the second control unit 12, the third control unit 13, and the vehicle exterior connection terminal 14 are connected. The navigation control unit 4 has built-in map data, and includes map data, vehicle speed, direction in which the vehicle is located, road condition in which the vehicle is traveling, time data (current time, time when ignition key is turned on). ), Data identifying the control unit to which the failed vehicle mechanism unit is connected among the first to third control units 11 to 13, information necessary for failure diagnosis of the vehicle mechanism unit taken from the control unit Are stored in the memory 10.

The operation display unit 7 has an operation switch 5 for outputting an operation signal to the navigation control unit 4 based on a predetermined operation of the vehicle driver, and a control signal output from the navigation control unit 4, for example, as shown in FIGS. And a display screen 6 for displaying a screen as shown in FIG.

From the operation switch 5, each control unit 1
Among the items 1 to 13, it is possible to select a case where all items related to one failure of the failed control unit are stored in the memory 10 or a case where only specified items are stored in the memory 10. In this case, the former is suitable for investigating the details of the failure, and the latter is suitable for investigating the data for a long time for a predicted failure. Further, from the operation switch 5, a case where mainly data such as a map output from the navigation control unit 4 is displayed on the display screen 6 and a case where mainly failure data output from each control unit 11 to 13 is displayed on the display screen 6 You can select whether to display in.

The first sensor 8 and the second sensor 9 are adapted to detect the vehicle speed of the vehicle, the direction in which the vehicle is located, the road conditions on which the vehicle is traveling, etc., and output them to the navigation control section 4. . The memory 10 includes a navigation controller 4
The vehicle speed output from the vehicle, the direction in which the vehicle is located, the road condition in which the vehicle is traveling, map data, time data (current time, time when the ignition key is turned on), first to third control unit 11 Data for identifying the control unit to which the failed vehicle mechanism unit is connected, information necessary for failure diagnosis of the vehicle mechanism unit taken from the control unit, and the like are stored.

The first control unit 11, the second control unit 12, and the third control unit 13 are electronic controls for controlling, for example, an engine mechanism, an automatic mechanism (AT), an anti-skid mechanism (ABS), etc. mounted on the vehicle 2. A unit that configures the device, and sends an ON / OFF signal to the signal line S1.
It is adapted to be output to the navigation control section 4 via the. The vehicle-exterior connection terminal 14 is arranged at a predetermined location, for example, in an engine room or the like, and is connected to a connection terminal (not shown) of an vehicle exterior tool installed in a repair shop such as a dealer.

In the first embodiment, the navigation control section 4 includes a first control unit 11, a second control unit 12,
When a failure signal is input from the third control unit 13 via the signal line S1, the vehicle speed / direction / road condition of the vehicle at that time, map data, time data (current time, time when the ignition key is turned on), etc. It is adapted to be stored in the memory 10. Further, the navigation control unit 4
Through the failure diagnosis serial line S2, the control unit connected to the failed vehicle mechanism unit is identified and failure content information (information necessary for failure diagnosis held by the control unit) is collected, and the memory 10 Stored in the operation display unit 7
Is displayed in real time on the display screen 6.

Next, the operation of the first embodiment constructed as described above will be described with reference to FIG.

When the vehicle speed of the vehicle detected by the first sensor 8 and the second sensor 9, the direction of the vehicle, and the road condition while the vehicle is traveling are input, the navigation control unit 4 of the navigation device 1 inputs these input information. A predetermined navigation process is performed on the basis of (step S1), and the operation display unit 7
The current position of the vehicle or the like is displayed on the display screen 6 (step S2).

Next, the navigation control unit 4 determines whether or not a failure signal is input via the signal line S1 connected to each of the control units 11 to 13, that is, each control unit 11
It is determined whether or not a failure has occurred in the vehicle mechanism section connected to (1) to (13) (step S3). If no failure has occurred in the vehicle mechanism unit connected to the control unit, the process returns to step S1, while if there is a failure in the mechanism connected to the control unit, the map data stored in the navigation control unit 4, The vehicle speed / direction / road condition detected by the 1st sensor 8 and the 2nd sensor 9, time data (current time, time when the ignition key is turned on), etc. are stored in the memory 10 (step S4).

In this case, when investigating the details of the failure of the control unit to which the failed vehicle mechanism section is connected, when the operation switch 5 of the operation display section 7 is operated in a predetermined manner, the control to which the failed vehicle mechanism section is connected is performed. All the items related to one failure of the unit are stored in the memory 10, and when the data for a long time is checked for a predicted failure, when the operation switch 5 is operated in a predetermined manner, only the specified item is stored in the memory. 1
Stored in 0.

Next, the navigation control section 4 identifies the control unit to which the failed vehicle mechanism section is connected via the failure diagnosis serial line S2 and collects the failure content information of the vehicle mechanism section from the control unit. Memory 10
(Step S5). Next, the operation switch 5 of the operation display unit 7 selects either a pattern for displaying data such as a map output from the navigation control unit 4 or a pattern for displaying failure data output from each of the control units 11 to 13. It is determined (step S
6).

When a pattern for displaying data such as a map output from the navigation control unit 4 is selected, the navigation control unit 4 determines whether there is an automobile dealer near the current position of the vehicle based on the built-in map data. When a search is made (step S7) to find that there is an automobile dealer, the display screen 6 of the operation display unit 7 displays, for example, as shown in FIG.
As shown in, the failure occurrence point, the car dealer, the repair shop, etc. are displayed (step S8). Then, the process returns to step S1. In the display example of FIG. 3, a triangular mark indicates a failure occurrence point mark of the vehicle S, an x mark indicates an automobile dealer and a repair shop, and a numerical value “21” indicates a failure code.

On the other hand, when the pattern for displaying the failure data output from each of the control units 11 to 13 is selected, the navigation control section 4 displays on the display screen 6 of the operation display section 7 as shown in FIG. 4, for example. The vehicle failure location, failure occurrence status, etc. are displayed (step S9). Then, the process returns to step S1. The display example of FIG. 4 shows that an abnormality has occurred in the oxygen sensor in the engine room and the occurrence state.

As described above, according to the first embodiment,
The navigation control unit 4 of the navigation device 1 mounted on the vehicle, based on the failure signal output from the control units 11 to 13 of the vehicle, for example, the electronic control unit, via the signal line S1, the control units 11 to 13 Whether or not there is a failure in the vehicle mechanism section connected to the vehicle is determined, and based on the serial signal output through the failure diagnosis serial line S2, the control unit to which the failed vehicle mechanism section is connected and the vehicle mechanism section are identified. Information on the failure content of
In order to properly display information on the display screen 6 of the operation display unit 7,
Compared with the conventional method, it is possible to accurately grasp the location and details of the vehicle failure in real time, and it is also possible to confirm the location of the repair shop where the failed vehicle is brought.

(2) Second embodiment. The configuration of the navigation device, the main part of the vehicle, and the failure diagnosis device outside the vehicle according to the second embodiment will be described with reference to FIG. 6. The navigation device 1 has the same configuration as that of the first embodiment.
A failure diagnosis device (external tool) 16 installed in, for example, a repair shop of an automobile dealer is connected to the vehicle 2 in which the vehicle is mounted via external connection terminals 14 and 15.

The failure diagnosis device 16 includes a tool system controller 17, a memory 18, and an operation display unit 19. When the vehicle 2 is brought into a repair shop for failure diagnosis by the failure diagnosis device 16, the vehicle exterior connection terminal 14 and the vehicle exterior connection terminal 15 of the failure diagnosis device 16 are connected to each other, and the operation switch of the operation display unit 19 is connected. By performing a predetermined operation, the failure diagnosis of the vehicle 2 is performed.

In the second embodiment, the failure diagnosis device 1 outside the vehicle is used.
The tool system controller 17 of No. 6 follows the first to the third of the vehicle 2 according to a preset failure diagnosis program.
Based on the signal taken in from the control units 11 to 13 via the signal line, the control unit to which the failed vehicle mechanism unit is connected and the failure content information of the failed vehicle mechanism unit (held by the control unit) (Information necessary for failure diagnosis) is collected, and further, based on the signal taken from the navigation device 1 on the side of the vehicle 2, the vehicle speed / direction / road condition of the vehicle at the time of failure stored in the memory 10, Map data,
Time data (current time, time at which the ignition key is turned on) and the like are collected, stored in the memory 18, and displayed on the display screen of the operation display unit 19.

Next, the operation of the second embodiment constructed as described above will be described.

When the vehicle 2 is brought to a repair shop of an automobile dealer for a failure inspection, the external connection terminal 14 of the vehicle 2 is installed in the repair shop and the failure diagnosis device 16 is installed.
When the operation switch of the operation display unit 19 of the failure diagnosis device 16 is operated in a predetermined manner after being connected to the vehicle exterior connection terminal 15, the tool system controller 17 is output via the vehicle exterior connection terminals 14 and 15 connected to the vehicle 2. It is determined based on the signal indicating that a failure has occurred in the vehicle mechanism unit connected to the first to third control units of the vehicle 2.

When a failure occurs in the vehicle mechanism section connected to the control unit, the tool system controller 17 uses the memory of the navigation control section on the vehicle 2 side to read the vehicle speed / direction / road condition and time at the time of the vehicle failure. Data (current time, time when the ignition key is turned on), map data, etc. are collected, and failure content information (information required by the control unit for failure diagnosis is stored from the control unit to which the failed vehicle mechanism is connected. ) Is collected and stored in the memory 35.

Next, the tool system controller 17
When the pattern for displaying the failure information output from each control unit is selected from the operation switch of the operation unit of the operation display unit 19, the vehicle failure occurrence location / fault occurrence is displayed on the display screen of the operation display unit 19. Display the status, etc.

As described above, according to the second embodiment,
The tool system controller 17 of the failure diagnosis device 16 outside the vehicle determines whether or not there is a failure in the vehicle mechanism section connected to the first to third control units on the vehicle 2 side, and also displays failure content information of the failed vehicle mechanism section. Since information is collected and displayed on the display screen of the operation display unit 19 as appropriate, it is possible to accurately grasp the failure location, failure content, etc. of the vehicle as compared with the conventional case.

Further, according to the second embodiment, since the navigation device and the failure diagnosis device which have been conventionally commercialized are used, the structure shown in FIG. 6 can be constructed at low cost. , It is possible to exert more effective functions than when both are used alone.

In this case, in the second embodiment, when the memory 10 of the navigation device 1 on the vehicle 2 side is configured as a removable memory and the vehicle 2 is diagnosed by the failure diagnostic device 16 outside the vehicle, It is also possible to mount the memory on the tool system controller 17 of the failure diagnosis device 16 and read the stored contents from the memory.

(2) Third embodiment. The configuration of the navigation device, the vehicle main part, and the failure diagnosis device outside the vehicle according to the third embodiment will be described with reference to FIG. 7. The navigation device 21 is provided on the instrument panel portion of the vehicle 22 on the front side of the driver's seat. A navigation control unit 23 having a built-in memory, an operation display unit 24 having an operation unit and a display unit, a first sensor 25,
The second sensor 26 is provided.

The structure of the navigation device 1, the main part of the vehicle and the failure diagnosis device outside the vehicle will be described in detail. In the navigation control part 23, the operation display part 24, the first sensor 25, and the second sensor are provided.
The sensor 26, the memory 27, the first control unit 28, the second control unit 29, the third control unit 30, and the vehicle exterior connection terminal 31 which are mounted on the vehicle 22 and constitute, for example, an electronic control unit are connected.

Further, the vehicle exterior connection terminal 31 installed in, for example, the engine room of the vehicle 22 is connected to the exterior connection terminal 32, which is paired with the terminal 31, through the exterior connection terminal 32, which is installed in a repair shop of an automobile dealer. A diagnostic device (tool outside the vehicle) 33 is connected. The failure diagnosis device 33 includes a tool system controller 34, a memory 3
5. An operation display unit 36 is provided. When the vehicle 22 is brought into a repair shop for failure diagnosis by the failure diagnosis device 33, the vehicle exterior connection terminal 31 and the vehicle exterior connection terminal 32 of the failure diagnosis device 33 are connected to each other, and the operation switch of the operation display unit 36 is connected. By performing a predetermined operation, the failure diagnosis of the vehicle 22 is performed.

In the third embodiment, the failure diagnosis device 3 outside the vehicle is used.
The tool system controller 33 of 3 identifies the control unit to which the failed vehicle mechanism unit is connected based on the signal taken in from the first to third control units 28 to 30 on the vehicle 22 side via the signal line S3. , Collecting the failure content information of the failed vehicle mechanism section (information necessary for the failure diagnosis held by the control unit), and further from the built-in memory of the navigation device 21 on the vehicle 22 side via the signal line S3. Based on the captured signals, the vehicle speed / direction / road condition, map data, time data (current time, time when the ignition key is turned on), etc. of the vehicle at the time of failure occurrence are collected and stored in the memory 35 for operation display. It is adapted to be displayed on the display screen of the section 36.

Next, the operation of the third embodiment constructed as above will be described.

When the vehicle 22 is brought into a repair shop of an automobile dealer for a failure inspection, the vehicle exterior connection terminal 31 is connected to the vehicle exterior connection terminal 32 of the failure diagnostic device 33 installed in the repair shop. After that, the failure diagnosis device 3
When the operation switch of the operation display unit 36 of 3 is operated in a predetermined manner,
The tool system controller 34 is connected to the first to third control units 28 to 30 based on a signal output via the vehicle exterior connection terminals 31 and 32 connected to the vehicle 22 according to a preset failure diagnosis program. It is determined whether or not a failure has occurred in the vehicle mechanism section.

When a failure occurs in the vehicle mechanism section connected to the control unit, the tool system controller 34 uses the built-in memory of the navigation control section 23 to store the vehicle speed / direction / road condition and time data at the time of the vehicle failure. The current time, the time when the ignition key is turned on, map data, etc. are collected, and failure content information (information necessary for failure diagnosis held by the control unit) is collected from the control unit to which the failed vehicle mechanism is connected. It is collected and stored in the memory 35.

Next, the tool system controller 34
When the pattern for displaying the failure information output from each of the control units 28 to 30 is selected from the operation switch of the operation display unit 36, the display screen of the operation display unit 36 displays the vehicle failure occurrence location / fault occurrence. Display the status, etc.

As described above, according to the third embodiment,
The tool system controller 33 of the failure diagnosis device 33 outside the vehicle includes the first to third control units 28 to 28 on the vehicle 22 side.
In order to determine whether or not there is a failure in the vehicle mechanism section connected to 30, and to collect failure content information of the failed vehicle mechanism section and to appropriately display information on the display section of the operation display section 36,
Compared with the conventional method, it is possible to accurately grasp the location and details of the vehicle failure.

Further, according to the third embodiment, since the navigation device and the failure diagnosis device which are conventionally commercialized are used, the structure shown in FIG. 7 can be constructed at a low cost. , It is possible to exert more effective functions than when both are used alone.

In this case, in the first to third embodiments,
Although the case where the navigation device is applied to a vehicle has been described as an example, the present invention is not limited to the vehicle, and may be applied to, for example, a ship equipped with an outboard motor.

In the first to third embodiments, the above-mentioned data is stored / displayed in the memory and the display unit by a predetermined operation of the operation unit of the operation display unit.
The data is not limited to the data, and any data required by the user can be stored / displayed. That is, any configuration may be used as long as the storage method / display method can be appropriately changed by a predetermined operation of the operation unit.

In the first and second embodiments, the navigation device mounted on the vehicle is equipped with two sensors for detecting the vehicle speed and direction, and the vehicle is equipped with three control units. However, it is not limited to these numbers.

[0047]

As described above, according to the failure diagnosis system of the present invention, the effects of the following items can be obtained. According to the failure diagnosis system of claim 1, the control unit of the navigation device mounted on the transportation means determines the failure location, failure content, etc. of the mechanism section of the transportation means based on the information input from the detection unit and the control unit. Since the failure-related information is calculated, it is possible to accurately grasp in real time the location of the failure in the mechanism section of the transportation means, the content of the failure in the failure location, and the like. Therefore, it is possible to solve the problem that it takes time to identify the failure point and the problem that the failure cannot be detected early as in the conventional case. According to another aspect of the failure diagnosis system of the present invention, the controller of the external failure diagnosis device connected to the transportation means has a failure of the mechanism portion of the transportation means based on the information input from the navigation device of the transportation means and the control unit. In order to calculate failure-related information such as location and failure content, if the transportation means is brought to the location where the failure diagnosis device is installed and connected to the failure diagnosis equipment, a failure has occurred in any part of the mechanism part of the transportation means. It is possible to accurately grasp the details such as the scab and the failure at the location where the failure occurred. Therefore, it is possible to solve the problem that it takes a long time to identify a failure point as in the conventional case.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a navigation device and a main part of a vehicle in a first embodiment to which the present invention is applied.

FIG. 2 is an explanatory diagram showing a configuration of a vehicle instrument panel section equipped with the navigation device according to the first embodiment.

FIG. 3 is an explanatory diagram showing a display example of the navigation device in the first embodiment.

FIG. 4 is an explanatory diagram showing a display example of the navigation device in the first embodiment.

FIG. 5 is a flowchart showing the operation of the navigation device in the first embodiment.

FIG. 6 is a block diagram showing a configuration of a navigation device, a main part of a vehicle, and a failure diagnosis device according to a second embodiment.

FIG. 7 is a block diagram showing a configuration of a navigation device, a vehicle main part, and a failure diagnosis device according to a third embodiment.

[Explanation of symbols]

1, 21 Navigation device 2, 22 Vehicle 4 Navigation control unit as control unit 5 Operation switch 6 Display screen 7, 19, 24, 36 Operation display unit 8, 25 First sensor as detection unit 9, 26 As detection unit Second sensor 10, 18, 35 Memory as storage unit 11, 28 First control unit 12, 29 Second control unit 13, 30 Third control unit 14, 15, 31, 32 Exterior connection terminal 17, 34 External control unit Tool system controller as

Claims (4)

[Claims] 1. A failure diagnosis system equipped on a transportation means such as a vehicle having a mechanism portion such as an engine, a control unit for controlling the mechanism portion, and a navigation device, wherein the navigation device comprises: A detection unit for detecting the position of the means, the traveling condition, etc.,
Information such as the position and traveling condition of the transportation means is input from the detection portion, and a failure signal and information necessary for failure diagnosis are input from the control unit when the mechanical portion of the transportation means fails. A storage unit for storing information such as the position and traveling status of the transportation means, and information necessary for failure diagnosis of the mechanism section of the transportation means, wherein the control section receives a failure signal from the control unit. In this case, the storage unit stores the information such as the position and traveling status of the transportation means input from the detection unit and the information input from the control unit and necessary for the failure diagnosis of the mechanism unit of the transportation unit. A failure diagnosis system having a storage function and a calculation function for calculating failure-related information such as a failure location and failure content of a mechanism section of the transportation means based on the stored content of the storage section. 2. The control unit, by a predetermined external operation,
The fault diagnosis system according to claim 1, further comprising an output control function for externally outputting the fault-related information. 3. A failure diagnosis system comprising a failure diagnosis device detachably connected to a transportation means such as a vehicle having a mechanism unit such as an engine, a control unit for controlling the mechanism unit, and a navigation device. The navigation device has a detection function of detecting the position and traveling status of the transportation means, and a storage function of storing information such as the position and traveling status of the transportation means when the mechanical section of the transportation means fails. The failure diagnosis device receives information such as the position and traveling condition of the transportation means at the time of the failure of the transportation means from the navigation device, and the failure signal and information necessary for the failure diagnosis from the control unit. External control unit to which is input, information such as the position and traveling status of the transportation means at the time of failure of the transportation means, failure diagnosis of the mechanism section of the transportation means A storage unit for storing necessary information, wherein when the external control unit receives a failure signal from the control unit, the transportation is performed when the mechanism unit of the transportation means input from the navigation device fails. Based on the storage function of storing information such as the position and traveling state of the means and information necessary for the failure diagnosis of the mechanism section of the transportation means input from the control unit in the storage section, and the stored content of the storage section A failure diagnosis system having a calculation function for calculating failure-related information such as a failure location and failure content of the mechanism section of the transportation means. 4. The failure diagnosis system according to claim 3, wherein the external control unit has an output control function for outputting the failure-related information to the outside by a predetermined external operation.