JPH10213525A - Automobile breakdown record control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To graphically display breakdown record data of vehicles of different models and manufactures by automatically converting them to data of common form. SOLUTION: This automobile breakdown record control device is to extract the progress before and after the breakdown of the characteristic values of each equipment from breakdown information sampling data 1 and, for example, if it is necessary to display it on a display device 8 in a certain table form or a graphic form, the breakdown information sampling data is read in this device with a characteristic value extraction rule corresponding to the data form of the sampling data applicable to a characteristic value extraction rule definition memory means 2 registered beforehand. Thus a characteristic value extraction means 3 extracts the characteristic value data of each equipment from the vehicle breakdown information sampling data 1 in accordance with the characteristic value extraction rule registered on the characteristic value extraction rule definition memory means 2, causes a characteristic value data retention means 4 to retain the characteristic value data of each equipment after converting them to a common data form, and converts them to display data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle failure record management device for managing a failure record of each device of a vehicle.

[0002]

2. Description of the Related Art Conventionally, failure data is recorded in a sampling data recording device in order to manage a failure record of each device of a vehicle, and the data is read out by a vehicle failure record management device, and before and after a failure of each device of the vehicle occurs. The characteristic value data is extracted, displayed on a display device, and printed to be used for investigating the cause and taking measures against a failure.

[0003]

However, in the conventional vehicle failure record management device, the failure information sampling data received from the vehicle side includes data representing the voltage, current, etc. of each device depending on the manufacturer and the type of the vehicle mounted. Number of bits,
Since the data format is not uniform, such as the way of expressing unit increments is different or the difference between digital data and analog data, it is necessary to prepare a device that has a data conversion function according to each data format So,
There was a problem that there was much waste in terms of time and cost.

The present invention has been made in view of such a conventional problem, and can easily cope with a case where vehicle failure sampling data is recorded in a different format due to a difference in a manufacturer or a type of a vehicle device. It is an object of the present invention to provide a vehicle failure record management device that can perform the operation.

[0005]

According to a first aspect of the present invention, there is provided a vehicle failure record management device which defines a characteristic value extraction rule for extracting a characteristic value of each device when a failure occurs from failure information sampling data. According to the extraction rule definition storage means and the characteristic value extraction rules registered in the characteristic value extraction rule definition storage means, the characteristic value of each device at the time of occurrence of a failure is extracted from the failure information sampling data and converted into a common data format. It is provided with characteristic value extracting means and characteristic value data holding means for holding characteristic value data extracted and converted by the characteristic value extracting means.

In the vehicle failure record management device according to the first aspect of the present invention, the transition of the characteristic value of each device before and after the occurrence of the failure is extracted from the failure information sampling data recorded on the vehicle side,
For example, when it is necessary to display the data on a display device in a fixed table format or a graph format, or to print out and analyze the data, a characteristic corresponding to the data format of the sampling data corresponding to the characteristic value extraction rule definition storage means in advance is used. The value extraction rule is registered, and the apparatus reads the failure information sampling data.

Thus, the characteristic value extracting means extracts the characteristic value data of each device from the vehicle failure information sampling data in accordance with the characteristic value extracting rule registered in the characteristic value extracting rule definition storing means, and converts the characteristic value data into a common data format. The data can be converted and stored in the characteristic value data storage unit.
Therefore, even when the original failure information sampling data has a different data format, the data can be finally converted into characteristic value data in a common format and used for graph display and printout.

According to a second aspect of the present invention, in the vehicle failure record management device of the first aspect, the characteristic value data in a common data format held by the characteristic value data holding means is converted into display data in a fixed format. It is provided with value data conversion means and display means for displaying the display data converted by the characteristic value data conversion means.

In the vehicle failure record management device according to the second aspect of the present invention, the failure information sampling data from the vehicle is converted into characteristic value data in a common data format and stored in the characteristic value data holding means. By converting the data into the display data in the format, even if the data format of the original failure information sampling data is different, the characteristic value data of each device of the vehicle can be finally displayed as a graph in a common format.

According to a third aspect of the present invention, in the vehicle failure record management device according to the first or second aspect, the characteristic value extraction rule definition storage means stores a plurality of types of characteristic value extraction rules, and the characteristic value extraction means stores failure information. The data format of the sampling data is determined, and one applicable characteristic value extraction rule is selected and applied from a plurality of types of characteristic value extraction rules stored in the characteristic value extraction rule definition storage means. By reading the vehicle failure sampling data with this device for any of the vehicle failure sampling data of different data formats depending on the manufacturer and vehicle type,
The characteristic value extracting means can automatically determine and apply the corresponding characteristic value extraction rule, and can convert it into characteristic value data in a common data format.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing a functional configuration of one embodiment of the present invention. The vehicle failure information sampling data 1 read by the present device is collected by a vehicle failure recording device (not shown) mounted on the vehicle,
It is stored in a storage medium.

The vehicle failure record management device according to the present invention includes a characteristic value extraction rule holding unit 2 for holding an extraction rule for extracting characteristic values of each device when a failure occurs from the vehicle failure information sampling data 1; The failure information sampling data 1 is read, and the characteristic value of each device at the time of occurrence of a failure is extracted from the vehicle failure information sampling data 1 in accordance with the characteristic value extraction rule registered in the characteristic value extraction rule holding unit 2, and a predetermined common A characteristic value extracting unit 3 for converting the characteristic value data into the characteristic value data in the data format described above, and a vehicle failure characteristic value data holding unit 4 for storing the characteristic value data extracted by the characteristic value extracting unit 3 and converted into a common data format. Have.

The vehicle failure record management device according to the present invention also has a rule for converting characteristic value data, which is stored in the vehicle failure characteristic value data storage unit 4 and converted into a common data format, into display data in a predetermined format. The characteristic value data is read from the display data conversion rule holding unit 5 that holds the data, and the characteristic value data is read from the vehicle failure characteristic value data holding unit 4. And a display data holding unit 7 for holding the converted display data. The display data holding unit 7 holds the converted display data. A display unit 8 for displaying display data is provided.

As shown in FIG. 2, the vehicle failure information sampling data 1 includes, when a vehicle failure occurs, characteristic values of each device for vehicle control during a certain period before and after the failure occurrence time, for example, power supply voltage, power supply Current, motor voltage, capacitor voltage, and other data, current, voltage, temperature, pressure, vehicle speed, switch status, etc. of each device in the vehicle are binary data sampled at regular intervals. The data format is vehicle type,
Varies by manufacturer.

As shown in FIG. 3, the characteristic value extraction rule holding unit 2 includes a characteristic value extraction rule definition file 2a and a characteristic value extraction rule definition file 2 corresponding to a difference between a vehicle type and a manufacturer.
a characteristic value extraction rule table creating unit 2c that extracts a characteristic value associated with the vehicle failure information sampling 1 and creates a characteristic value extraction rule table 2b shown in FIG. The characteristic value extraction rule definition file 2a stores the item name indicating the name of each information, the number of data bits of each item, the distinction between analog and digital types of data, and the maximum value of data in correspondence with the vehicle type and the manufacturer. It consists of the data shown. Then, the characteristic value extraction rule table creating unit 2c transmits the characteristic value extraction rule definition file 2a
In accordance with the definition, the function of creating a characteristic value extraction rule table 2b converted into a format that can be easily handled by a computer.

The characteristic value extraction unit 3 stores the characteristic value extraction rule table 2 stored in the characteristic value extraction rule storage unit 2.
With reference to FIG. 4B, the relevant characteristic value is extracted from the vehicle failure information sampling 1, and a vehicle failure characteristic value data management table 4a of a common format as shown in FIG. This is the part that is held.

As shown in FIG. 5, the display data conversion rule holding unit 5 stores the display data conversion rule definition file 5
a, and a display data conversion rule table creation unit 5c that creates a display conversion rule table 5b in a format that can be easily handled by a computer from the display data conversion rule definition file 5a. The display data conversion rule definition file 5a lists item names to be displayed and output.

The display data conversion unit 6 stores the display data conversion rule table 5 in the display data conversion rule holding unit 5.
In accordance with the conversion rule b, necessary data is extracted from the vehicle failure characteristic value data management table 4a held in the vehicle failure characteristic value data storage unit 4, and a display data management table 7a is created to hold the display data. This is a part to be held by the unit 7.

As shown in FIG. 7, the display section 8 is a section for reading data from the display data management table 7a held in the display data holding section 7 and displaying the data in a predetermined format in a graph.

Next, the operation of the vehicle failure record management device having the above configuration will be described. On the vehicle side, operation data of each device is periodically sampled in a binary data format, and when a failure occurs, sampling data for a certain period before and after the failure is cut out to create vehicle failure information sampling data 1a. For example, a hard disk, a flexible disk,
It is stored in a storage medium such as an IC card. When a vehicle failure occurs and its analysis is performed, the vehicle failure record sampling device is connected to the vehicle failure information sampling data storage device of the vehicle, or the vehicle failure information sampling data is stored in a portable storage medium. If so, the recording medium is incorporated in the present apparatus, and the characteristic value extracting unit 3 reads the vehicle failure information sampling data 1.

The characteristic value extracting section 3 extracts characteristic value data according to the flowchart shown in FIG. 8 to create a vehicle failure characteristic value data management table, and the display data converting section 6 according to the flowchart shown in FIG. The characteristic value data is converted into display data.

First, in the characteristic value extraction rule definition file 2a of the characteristic value extraction rule holding unit 2, rules for extracting characteristic values of each device at the time of occurrence of a failure from the vehicle failure information sampling data 1a are defined for each vehicle type and each manufacturer. Set it. Here, the names representing the capacitor voltage and the motor current and the order in which the data are stored are set in the item name column of the characteristic value extraction rule definition file 2a, and the bit number column represents the data for each item name. The number of bits used to perform the setting is set, and "A" is set in the analog / digital column when the type of data for each item name is analog data, and "D" is set in the case of digital. In the column of maximum value, the maximum value of the numerical value for each item name is set. By setting such a characteristic value extraction rule, the characteristic value extraction rule table creation unit 2c creates and holds a characteristic value extraction rule table 2b in a data format that is easy for a computer to handle, according to the rules corresponding to the vehicle type and the manufacturer. I have.

Therefore, as shown in the flowchart of FIG.
Are sequentially extracted from the top record of the characteristic value extraction rule table 2b by the number of bits set in the bit number column (steps S1 to S3). Therefore, data conversion is performed (steps S4 to S5). The characteristic value data thus extracted is registered in the characteristic value data management table 4a of the vehicle failure characteristic value data holding unit 4 (Step S6), and this is repeated until the end of the record of the characteristic value extraction rule table 2b (Steps S2 to S7). ).

In the case of this embodiment, steps S2 to S7
Performs the following processing. The characteristic value extraction unit 3 reads “capacitor voltage” from the item name column of the characteristic value extraction rule table 2b and registers it in the characteristic value data management table 4a of the vehicle failure characteristic value data holding unit 4. Further, according to the bit number “8” set in the bit number column of the characteristic value extraction rule table 2b, information of 8 bits is extracted from the vehicle failure information sampling data 1. Subsequently, "A" set in the analog / digital column of the characteristic value extraction rule table 2b is set.
, And for the 8-bit information extracted earlier,
Perform the following conversion:

According to the maximum value "1000" set in the maximum value column of the characteristic value extraction rule table 2b, 0 to 10
The capacitor voltage value is converted at a conversion ratio of 00 / 00H to FFH (H: a hexadecimal number), and the converted capacitor voltage data is registered in the characteristic value management table 4a. The above processing is repeated for the next record and the motor current and thereafter.

When registration of all records in this one characteristic value data management table is completed, a new characteristic value data management table is added, and the above characteristic value data extraction processing is repeated for vehicle failure sampling data in the next period. (Steps S1 to S9). Therefore, in the vehicle failure characteristic value data management table 4a of the vehicle failure characteristic value data holding unit 4, one data table is created for each sampling data.

Next, as shown in the flowchart of FIG.
In the notation data conversion unit 6, the display data conversion rule storage unit 5 stores the vehicle failure characteristic value data management table 4a stored in the vehicle failure characteristic value data storage unit 4.
Display data conversion rule table 5b held in
Based on the data conversion, the data is converted into display data.

Here also, first, the item name of the data to be displayed on the display unit 8 from the data of the characteristic value data management table in the display data conversion rule definition file 5a of the display data conversion rule holding unit 5, here "capacitor voltage" And "motor current" are set. With this setting, the display data conversion rule table creator 5 creates and holds the display data conversion rule table 5b listing the display items.

Therefore, the display data conversion unit 6 reads “capacitor voltage” from the display item name column of the display data conversion rule table 5b,
Is registered in the display data management table 7a (steps S11 to S14). Subsequently, the display data conversion unit 6 searches for the item name "capacitor voltage" from each sampling data table managed in the characteristic value data management table 4a, inputs the data, and stores the data in the display data management table 7a. Output to the series (step S14).

Then, the display data conversion section 6 performs the processing of the above steps S13 and S14 also for the next display item name "motor current" in the display item name column of the display data conversion rule table 5b (steps S12 to S12). S15).

When the process of converting one record of the vehicle failure characteristic value data management table 4a into display data is completed, steps S12 to S1 are performed for all records.
5 is repeated (steps S11 to S16).

When the display data conversion processing is completed in this way, the display processing on the display unit 8 is started. In the display unit 8, the display data table 7a of the display data holding unit 7
The graph display 8a is performed on the basis of the display data managed by.

As described above, the vehicle failure record management device according to the present embodiment reads the failure information sampling data (binary data) of each device on the vehicle side and reads necessary data in accordance with preset characteristic value extraction rules. Data is extracted and converted to create characteristic value data in a common format, which is further converted to display data in a fixed format according to pre-registered display data conversion rules, and used for graph display. Therefore, even if the expression format of the characteristic value data contained in the vehicle failure information sampling data changes due to a change in manufacturer or vehicle type, the characteristic value extraction rule holding unit can be used without changing the characteristic value extraction unit 3. 2 can be easily handled only by changing the contents of the characteristic value extraction rule definition file 2a registered in Between and cost it is possible to significantly reduce.

Further, in this embodiment, when the display format of the display data changes, the display data conversion rule registered in the display data conversion rule holding unit 5 is maintained without changing the display data conversion unit 6. By simply changing the contents of the rule definition file 5a, display data corresponding to a new display format can be created, and in this regard, development time and cost can be significantly reduced.

In the above embodiment, the display unit 8 displays the data in a graph format. However, the handling of the display data is not limited to this, and the display data can be output to the printer in a graph format. .

In the above embodiment, the characteristic value data is extracted, further converted into display data, and displayed as a graph. However, the present invention is not limited to this. There is no particular limitation on how to handle the characteristic value data that is held in the table 4a in a common data format, for example, a text data format.

[0037]

As described above, according to the first aspect of the present invention,
The characteristic value extracting means extracts the characteristic value data of each device from the vehicle failure information sampling data according to the characteristic value extraction rule registered in the characteristic value extraction rule definition storing means, converts the characteristic value data into a common data format, and converts the characteristic value data into a common data format. Even if the data format of the original failure information sampling data is different, it can be converted to characteristic value data of a common format and used for graph display and printout, even if the data format of the original failure information sampling data is different. Compared to the case where the function of the characteristic value extraction means is changed to the corresponding function for each vehicle type and each manufacturer, it is possible to cope only by changing the characteristic value extraction rule registered in the characteristic value extraction rule definition storage means. , Development time and cost can be reduced.

According to the second aspect of the present invention, the failure information sampling data from the vehicle is converted into characteristic value data in a common data format and stored in the characteristic value data holding means. Therefore, even when the original failure information sampling data has a different data format, the characteristic value data of each vehicle device can be finally displayed in a graph in a common format.

According to the third aspect of the present invention, the apparatus reads the vehicle failure sampling data of the vehicle failure sampling data having different data formats depending on the manufacturer and the vehicle type, so that the characteristic value extracting means can automatically perform the characteristic value extraction. It is possible to determine and apply the characteristic value extraction rule that corresponds to it and convert it to characteristic value data in a common data format,
A single device can cope with failure inspection work of vehicles of different types or vehicles of different manufacturers in the same place, which is convenient.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of one embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a structure of vehicle failure information sampling data in the embodiment.

FIG. 3 is an explanatory diagram showing an internal functional configuration of a characteristic value extraction rule holding unit in the embodiment.

FIG. 4 is an explanatory diagram showing a structure of a characteristic value data management table held in a vehicle failure characteristic value data holding unit in the embodiment.

FIG. 5 is an explanatory diagram showing an internal functional configuration of a display data conversion rule holding unit in the embodiment.

FIG. 6 is an explanatory diagram showing a structure of a display data management table held in a display data holding unit in the embodiment.

FIG. 7 is an explanatory diagram showing a graph display example of a display unit in the embodiment.

FIG. 8 is a flowchart showing processing of a characteristic value extracting unit in the embodiment.

FIG. 9 is a flowchart showing processing of a display data conversion unit in the embodiment.

[Explanation of symbols]

 1 vehicle failure information sampling data 2 characteristic value extraction rule holding unit 2a characteristic value extraction rule definition file 2b characteristic value extraction rule table 2c characteristic value extraction rule table creation unit 3 characteristic value extraction unit 4 characteristic value data storage unit 4a characteristic value data management Table 5 Display data conversion rule holding unit 5a Display data conversion rule definition file 5b Display data conversion rule table 5c Display data conversion rule table creation unit 6 Display data conversion unit 7 Display data holding unit 7a Display data management Table 8 Display section 8a Graph display

Claims (3)

[Claims] 1. A characteristic value extraction rule definition storage unit that defines a characteristic value extraction rule for extracting a characteristic value of each device when a failure occurs from failure information sampling data, and is registered in the characteristic value extraction rule definition storage unit. Extract the characteristic value of each device at the time of failure occurrence from the failure information sampling data according to the characteristic value extraction rule being
A vehicle failure record management device comprising: a characteristic value extracting unit that converts the data into a common data format; and a characteristic value data holding unit that stores the characteristic value data extracted and converted by the characteristic value extracting unit. 2. A characteristic value data conversion unit for converting characteristic value data in the common data format held by the characteristic value data holding unit into display data in a fixed format, and a display converted by the characteristic value data conversion unit. 2. The vehicle failure record management device according to claim 1, further comprising display means for displaying application data. 3. The characteristic value extraction rule definition storage means stores a plurality of types of characteristic value extraction rules. The characteristic value extraction means determines a data format of the failure information sampling data, and stores the characteristic value extraction rule definition. 3. The vehicle failure record management device according to claim 1, wherein one applicable characteristic value extraction rule is selected from the plurality of types of characteristic value extraction rules stored in a storage unit and applied.