JPS60222337A - Troubleshooting system of automobile - Google Patents

Abstract

PURPOSE:To enable application of sophisticated and complicated maintenance and test data reserved in service works and so forth as data for troubleshooting by connecting an automobile's telephone to a processing part via a signal converter so as to enable data communication with a main processing unit which is installed in a fixed station such as the service works. CONSTITUTION:An automobile's troubleshooting equipment 10a mounted on an automobile 30 processes received signals from sensors responding to operating condition of each part and received various troubleshooting signals from an engine controller and some other controllers. Said processed data is transmitted to a host computer 62 installed in a fixed station 60. At the fixed station 60, an automobile test system 63 performs tests for inspection/maintenance purpose of the automobile 30 and transfers the test results to the host computer 62 to store the results therein. When said processed data is sent to the computer 62 via telephone line of the automobile 31, the computer troubleshoots on the basis of the stored data and sends back the results to a troubleshooting equipment 10a.

Description

[Detailed description of the invention] [Technical field of invention] With this invention, cars q! Detects an abnormality or failure in one part.

The present invention relates to an automobile failure diagnosis system that displays warnings and failure details inside the automobile.

[Prior art]

Conventionally, there has been a device of this type shown in Series 11 that is mounted on a vehicle. In the figure, reference numeral 10 indicates an automobile failure diagnosis device, reference numeral 11 indicates a signal generation unit composed of various sensors, and 1
2 is a processing section consisting mainly of a microcomputer,
13 is a display device controlled by the processing section 12.

Further, 20 represents a control device section 2 consisting of a decimal control device, and 21a to 21n&! Each is one of the control devices,
These include engine control devices and transmission control devices.

The operation will be briefly explained. First, the q! It generates signals corresponding to certain operating conditions, such as engine speed, vehicle speed, engine oil pressure, etc. In the processing section 12, slightly! ! The product signal from the signal generating unit 11 and the signals sent from the control devices 21a to 21n such as the engine control device and the transmission control device are sent manually with the type signals for fault diagnosis, and the FJR program is executed manually. Processing and judgment for failure detection are performed according to the following. Then, processing
If an abnormality or failure is detected as a result of the judgment, what is the content? At the same time as being stored, warnings and failure items are displayed on the display device 13 using characters, symbols, code numbers, etc.

As mentioned above, if an abnormality or failure occurs in a part of the driver's fliT+ vehicle and the failure diagnosis device 10 detects this and displays a warning, etc., the driver can stop driving or use gasoline.・Is it necessary to take measures such as heading to the stand or a repair shop? Take.

Since the conventional automobile fault diagnosis device is configured as described above, it is not possible to perform high-class and complicated processing for fault diagnosis due to the capacity of the program and data memory in the microcomputer of the processing section 120. In addition, since the program cannot be easily changed, there are drawbacks such as the fact that information such as the results of inspections and tests of the vehicle at a repair shop cannot be used for fault diagnosis within the vehicle.

[Summary of the invention]

This invention was made in order to eliminate the drawbacks of the conventional ones described above, and it connects a car phone to the processing TjII512 through a signal converter, and connects the main processing unit to a fixed station such as a U-bi factory. By configuring it so that data can be exchanged with the system, it is possible to obtain high-grade and complex data, as well as information about the results of inspections and tests at maintenance shops, etc. The aim is to provide a system that utilizes the fault diagnosis system for Xiaomi's automobiles.

[Embodiments of the invention]

An embodiment of the present invention will be described below.

FIG. 2 is a conceptual diagram of the automobile failure diagnosis system according to the present invention. In the diagram, 30 is the vehicle that is subject to failure diagnosis, 40 is the car telephone wireless base station of the Telegraph and Telephone Public Corporation, and 50 is the target! IJBL telephone switching center 60 is a fixed station such as an automobile repair shop. Furthermore, 10a mounted on the automobile 30 is an automobile failure diagnosis device corresponding to the conventional device 10;
1 is a first signal conversion device that performs signal conversion and decoding; here, the first modem; 32 is the first modem 3;
This is a car phone that connects to the car failure diagnosis device 10aK via the phone 1. ′! F. 61 installed at the fixed station 60
What about telephone lines and computers? A second signal conversion device for connection, here a second modem.

62 is a main processing unit connected to the telephone line via a second modem 61;
Connected for data transmission to a 3U host computer 62 is a fl,7j automotive test equipment.

FIG. 3 is a block diagram showing the constituent elements of the valley part according to the present invention mounted on the 30 yen vehicle.
The same or equivalent parts as in the figures are given the same reference numerals. In the figure, reference numerals 13 and 14 indicate components of the automobile trouble diagnosis system tea, which are output devices that are controlled by the processing section 12, and here are a display device and a printer.

17t, FIG. 4 is a block diagram showing the components of the main unit according to the present invention installed at the fixed station 80 yen.

Next, the operation will be explained. 1 in the automobile failure diagnosis device 10ak installed in the automobile 30.

Signal generation @11Y from the qS type sensor.

Signals corresponding to the operating status of each part of the automobile, such as engine rotation speed, vehicle speed, engine oil pressure, etc., are generated. Next, the processing section 12 inputs various signals from the signal generation section 11 and various signals sent from control devices 21a to 21n such as an engine control device and a transmission control device for fault diagnosis. , performs predetermined processing.

The processing device 12 further includes a first modem 31 . Car phone 32. S-line base station 40. Exchange 50. The fixed station 60 yen host / via the second modem 61 etc. in the fixed station 60
The above processing data is transmitted to the convenience store RO 2.

When inspecting and maintaining the automobile 3o at the Itto Gakusoku station 60, each part of the automobile 3o is inspected by the automobile testing device 63.
! Perform one type of test and transfer data regarding the test results to the host computer 62.

This n! 1 [l! Memorize it in your memory. When the data processed by the processing device 12 is sent from the car 3° to the host computer 62 via the telephone line, the host computer 762H sends the data related to the test results in the car testing device 63 to the host computer 762H. Based on the data t, predetermined processing/judgment and fault diagnosis are performed. Furthermore, the host computer 62 transmits the results of this fault diagnosis to the fixed station 60.
A circular second modem 61, a switching center 50. Wireless base station 40.
Car phone 32. automatically via the first modem 31 etc.]
[Return to failure diagnosis device 10a for 30 yen.

The failure diagnosis device 10a'''C is a host computer 6
Processing device 1 according to the fault diagnosis results returned from device 2.
2 controls the 1 display device 13 and printer 14 and performs a predetermined output. As for the output method.

For example, what is the occurrence and extent of abnormality/failure in the display device 13? The details of the failure and the measures to be taken by the driver are printed on the printer 14.

Note that the above operations have been described on the assumption that the car 30 is within the service area of the Japan Telegraph and Telephone Public Corporation's car phone, but if the car 30 moves out of the service area,
The failure diagnosis device 10a functions in the same manner as a conventional device, and performs failure diagnosis using a diagnostic program of 12 yen for the processing device.
The results are output to the display device 13 and printer 14.

Incidentally, in the above embodiment, a system is shown in which data is transmitted online from the automobile testing equipment 63 to the host computer 62, but the host computer 62
The test results and inspection results may be manually input into the host computer 62 using the keyboard and display that are the terminals of the vehicle test equipment 63. It may be installed at a location and connected to enable data communication via a communication line. Furthermore, a modem 3 is included in the signal conversion device used to connect the car phone 32 and the automatic serious fault diagnosis device 10a.
Although only one acoustic coupler is used, any other acoustic coupler may be used and the same effect as in the above embodiment can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, a car phone is connected to a processing section via a signal conversion device. Connected to a main processing unit installed at a fixed station such as a repair shop, the configuration is configured so that data can be exchanged with the main processing unit installed at a fixed station such as a repair shop. This has the advantage of providing an automobile failure diagnosis system that enables diagnosis.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a conventional vehicle failure diagnosis system for a 11J vehicle, and FIG. 2 is a conceptual diagram showing a vehicle failure diagnosis system according to an embodiment of the present invention. Components of each part invented by Octopus? FIG. 4 is a block diagram showing the components of various parts according to the present invention installed in the fixed station U of FIG. 2. 10, 10a...Self! II car failure diagnosis device, 11.
... Signal generation unit, 12... Processing device, 13... Output device (display device), 14... Output device (printer),
20°゛Control device section, 21a, 21b to 21n...Control device. 30... Car, 31... First signal converter (modem), 32... Car telephone, 40... Return base station. 50... Switching station, 60... Fixed station, 61... First
signal converter (modem), 62...main processing unit (host computer), 63...automobile testing equipment.In addition, the same reference numerals in Figure 1 indicate the same or similar parts.Patent applicant: Mitsubishi Denki Co., Ltd. JP-A-222337 (5) Procedural amendment (voluntary) Commissioner of the Japan Patent Office 1, Indication of case Patent Application No. 59-76546 2, Title of invention Automobile failure diagnosis system 3, Person making the amendment 5 , Column 6 for a brief explanation of the drawings in the specification subject to amendment, Contents of amendment (2)

Claims (1)

[Claims] (1) What is the operating status of each part of the car? a signal generator section that generates a plurality of types of signals indicating the vehicle; and a control device section that includes a plurality of control devices that control each section of the vehicle and generate signals indicating the control status thereof. The signals outputted by the signal generation section and the control device section are human-powered, and the processing section performs necessary processing and judgment on the input signals, and the signal outputted by this processing section is directly controlled. a first signal conversion device connected between the processing unit and the car phone that performs data transmission with the outside; and a first signal conversion device that performs signal conversion; In-vehicle section and the above-mentioned car phone a! One end is connected to the telephone line connected via the IKN, a second signal converter converts the signal, and the other end of the second signal converter is connected.
At the same time, f is input via this second signal converter 1Y.
L7t From a non-vehicle unit comprising a main processing unit that performs a failure diagnosis of the vehicle based on data t from the vehicle-mounted unit and returns the diagnosis result Y to the vehicle-mounted unit via the second signal conversion device. Automotive fault diagnosis system consisting of: (21 The output device is a display device and a printer.
The automobile failure diagnosis system according to claim WJ1, wherein the t% sign is that the difference is -1. +31 Patent Mx characterized in that the main processing unit is connected to a non-vehicle automotive testing device capable of data communication.
The automotive failure diagnosis system according to item 1.