JPH0752143B2 - Data storage facility - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data storage facility used for a vehicle diagnostic facility.

Conventional technology Conventionally, service stations, repair shops, dealers, gas stations (hereinafter,
In the general term of maintenance shop), a skilled worker finds out and repairs a faulty part of a vehicle based on his experience and makes adjustments to standard (normal) data. However, these days, cars are becoming more and more complex, and the number of types of cars is increasing.This makes it difficult for even a skilled worker to find out a failure point based on his experience, and a skilled worker is required. Due to the decrease, the automatic diagnostic equipment for vehicles has been introduced.

However, it is necessary to input reference normal data and determination data for failure determination for each vehicle into the automatic vehicle diagnostic equipment, and such input work requires a lot of time and labor. Was needed. Further, since each car has its own individuality and data at the time of shipment from the factory is different for each car, it has been desired to input the data at the time of shipment for more accurate diagnosis. It took time and effort to obtain such shipping data from the factory.

The present invention solves the above problems, and an object of the present invention is to provide a data storage facility that facilitates data input to an automatic diagnostic facility and eliminates time loss and trouble.

Means for Solving the Problems In order to solve the above problems, a data storage facility of the present invention includes a vehicle body individual data storage device for storing engine data input for each vehicle body after loading the vehicle body, and the vehicle body individual data storage device. A memory card writing device that is connected and reads out engine data for each vehicle body from this storage device and writes the data in a memory card for each vehicle body is provided.

Operation With the above configuration, the data of the engine after being loaded on the vehicle body is written and stored in one memory card for each vehicle. Therefore, by equipping a car with a memory card, it is possible to freely retrieve and check the engine data at the time of shipping the car from the memory card when checking or repairing the car, and more accurate diagnosis is expected. .

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of the data storage facility of the present invention.

In FIG. 1, reference numeral 1 denotes an engine unit data storage device including a computer installed in an engine factory A, which stores engine unit data after engine adjustment shown in Table 1 for each engine number, which is input from a keyboard 2. And store. An engine reference data storage device 3 composed of a computer is arranged in the engine factory A, and the engine reference data according to the engine model shown in Table 2, which is input from the keyboard 4, is stored and stored for each engine model number.

Further, the vehicle body assembly factory B is provided with a vehicle body individual data storage device 5 composed of a computer, and stores the engine data after vehicle body loading and the vehicle body data shown in Table 3 which are input from the keyboard 6 for each vehicle. And store.

FIG. 2 shows a characteristic diagram of engine rotation unevenness as an example of the characteristics input as data to the engine unit data storage device 1 and the engine reference data storage device 3. The broken line shows the engine reference value (data), and the solid line shows the measured value of the engine alone. The difference between the reference value and the measured value is uneven rotation. The engine unit data input as the rotation unevenness is a measurement value that is plotted at a constant angle and is measured at a predetermined rotation speed, so the number of data points is several tens.

Further, FIG. 3 shows a characteristic diagram of engine vibration as an example of a characteristic input as data to the vehicle body individual data storage device 5. The engine data after loading the vehicle body is a measured value that is plotted at a constant frequency, and the vibration is also measured at a predetermined number of revolutions, so the number of data points is tens.

Further, in FIG. 1, reference numeral 7 denotes a memory card reader / writer installed in a car body assembly plant B for performing data transmission with a memory card 8 with a built-in CPU in a contactless manner by electromagnetic coupling, and a communication interface device (not shown) ) Via the engine reference data storage device 3 of the engine factory A, and the individual vehicle body data storage device 1 linked to the engine reference data storage device 3 and the vehicle body number, engine number and engine input from the keyboard 9. The data from the storage devices 1, 3, 5 are input according to the model number and stored in the memory card 8.

A procedure of writing data to the memory card 8 by the memory card reader / writer 7 will be described with reference to FIG.

First, when the vehicle body number, the engine number, and the engine model number are input (step S-1), they are once stored in the internal memory (step S-2) and then written in the memory card 8 (step S-3). A read signal including the model number is output to the engine reference data storage device 3 (step S-4). When the engine reference data is input from the engine reference data storage device 3 (step S
-5), confirm the engine model number of this data (step S-6), and if the engine model number is correct, write the data as it is to the memory card 8 and then read the signal including the engine number into the engine unit data storage device. Output to 1 (steps S-7, S-8). States S-
At 6, if the engine model number is wrong, an alarm is output (step S-9). When the engine single data is input from the engine single data storage device 1 (step S-10), the engine number of this data is confirmed (step S-11), and if the engine number is correct, the data is directly written to the memory card 8 and A read signal including the number is output to the vehicle body individual data storage device 5 (steps S-12, S-13). If the engine number is wrong in step S-11, an alarm is output in step S-9. When the vehicle body data is input from the vehicle body data storage device 5 (step S-14), the vehicle body number and engine number of this data are confirmed (steps S-15, S-1).
6) If both are correct, the individual vehicle body data is written directly to the memory card 8 (step S-17), and if either number does not match, an alarm is output at step S-9. The alarm is, for example, a memory card reader / writer 7
This is done by turning on the lamp attached to or by sounding the buzzer.

In this way, by storing all the data for each vehicle in the memory card 8, it becomes possible to freely carry individual vehicle data, and to equip the vehicle with this memory card 8 when shipping the vehicle. For example, when inspecting a car
When an abnormality occurs, the data of the individual vehicle can be retrieved from the memory card 8, which can be useful for vehicle diagnosis.

FIG. 5 shows the structure of a car maintenance factory C. As shown in FIG. 5, if the memory card reader / writer 12 that can read and write the data of the memory card 8 is connected to the automatic failure diagnosis device 11, the data of the memory card 8 is directly input to the automatic failure diagnosis device 11. It is possible to save time and effort for input work. The automatic failure diagnosis device 11 is composed of, for example, an engine analyzer, a vehicle body analyzer, a display CRT, and the like, and the measured engine data shown in Table 4 is input to the engine analyzer from the keyboard 13 at the time of vehicle inspection and the like. The measured vehicle body data and the like shown in Table 5 are input. An example of the failure diagnosis by the automatic failure diagnosis device 11 will be described with reference to the characteristic diagram of the measured value of the engine vibration input from the keyboard 13 shown in FIG. The broken line is the engine vibration data at the time of shipment input from the memory card 8, and the solid line is the measurement value at the maintenance shop C. Sixth
In the figure, the abnormal point can be specified by finding the frequency at the point where the data greatly differ. For example, due to abnormal vibration around 10KHz. Metal wear is detected, and belt abnormality is detected due to vibration abnormality near 15 KHz.

Note that in FIGS. 1 and 5, the keyboard 2.4.6.
Although the measured value is input from 13, an A / D converter that converts the analog measurement signal input from the measuring instrument into a digital signal is provided, and the data selected by the A / D converter is stored in each data storage device.
1.3.5, may be input to the automatic failure diagnosis device 11.

Also, when writing data to the memory card 8 from the memory card reader / writer 7, it is possible to encrypt the data, and further, by inputting the password to the memory card 8, the data can be read. You can also do it. In addition, the memory card reader / writer 12 of the maintenance shop C can rewrite the data of the memory card 8 or add the data, which corresponds to the data exchange at the time of engine replacement, the storage of the vehicle maintenance history, etc. You can also

As described above, according to the present invention, the engine data after being loaded on the vehicle body can be written and stored in the memory card for each vehicle 1. In addition, by installing a memory card in the vehicle at the time of shipping the vehicle, engine data at the time of shipping of the individual vehicle at the time of inspection and maintenance is taken out at the inspection and maintenance destination at the time of inspection and maintenance of the vehicle and compared with the current measured value. Therefore, more accurate vehicle diagnosis can be performed. In addition, it becomes possible to directly input the individual vehicle data from the memory card to the automatic diagnosis equipment, which saves the time and labor of the input work and improves the work efficiency.

[Brief description of drawings]

FIG. 1 is a block diagram of a data storage facility showing an embodiment of the present invention, and FIGS. 2 and 3 are characteristic data of engine rotation unevenness and engine vibration, which are stored data of the data storage facility. FIG. 4 is a flow chart showing the operation of the memory card reader / writer of the data storage facility, FIG. 5 is a configuration diagram of a maintenance factory, and FIG. 6 is a characteristic diagram of engine vibration measured at the maintenance factory. 1 ... Engine data storage device, 3 ... Engine reference data storage device, 5 ... Vehicle body individual data storage device, 7
…… Memory card reader / writer, 8 …… Memory card.

Claims (1)

[Claims] 1. A vehicle body individual data storage device for storing engine data after vehicle loading, which is input for each vehicle body, and an engine data for each vehicle body connected to the vehicle body individual data storage device for reading out vehicle data for each vehicle body. Data storage facility equipped with a memory card writing device that writes to each memory card.