KR100214707B1 - An automobile online diagnosis apparatus - Google Patents

Abstract

The present invention relates to a vehicle failure diagnosis apparatus for automatically diagnosing a failure of an automobile, and is an object of the present invention to provide a comprehensive vehicle diagnostic apparatus which is inexpensive, suitable for the domestic market, and capable of simultaneous remote diagnosis.

According to the comprehensive vehicle diagnostic apparatus of the present invention, the vehicle failure diagnosis function, fault diagnosis function, tune up function (tune up), learning control function, data analysis function and exhaust gas analysis function to automatically diagnose the car failure It can achieve the effect of import substitution. In addition, it can be configured at low cost, suitable for the domestic market, and can be remotely diagnosed at a long time.

Description

Automobile Diagnosis Device

The present invention relates to a vehicle fault diagnosis apparatus for automatically diagnosing a fault of a vehicle, and in particular, a maintenance data search function, a fault diagnosis function, a tune up function, a learning control function, a data analysis function, an exhaust gas analysis function, and the like. It relates to a comprehensive vehicle diagnostic device.

In recent years, the development of the electronics industry, especially the semiconductor industry, has been a major revolution in all industrial sectors, so revolutionary, and this change is expected to accelerate further. In addition, this change has accelerated the electronics of automobiles, and automakers are focusing on automation for each system for consumer satisfaction, such as ease of use, and accordingly, the scope of application of electronic control devices is gradually expanding.

This trend has caused a change in the scope of automobile maintenance activities from mechanical equipment-oriented automobile maintenance to electrical and electronic equipment-oriented maintenance, and service activities in the face of situations where maintenance is almost impossible for workers who have performed mechanical maintenance based on long experience. Suffers a lot of trouble.

This change in automotive technology required a new change in maintenance technology, and in line with this, diagnostic equipment for checking each function was introduced one after another, but most of the equipment was imported, expensive, and unsuitable for the domestic market. Since most of the equipment, the current situation is not effective.

Until now, there have been no development of tune-up equipment in the domestic market, and three to four types of diagnostic tools have been developed and used for maintenance. Due to the low level of technology in the domestic market, its utilization is falling.

Compared to the technology of advanced automobile system, the conditions related to maintenance technology in the domestic market are not sufficient, resulting in the lack of technical manpower, the lack of equipment, and the lack of technology. Therefore, in order to solve these difficulties and to promote the quantitative and qualitative level up of the maintenance ability, various comprehensive vehicle diagnostic systems (called KODS (KIA ONLINE DIAGNOSIS SYSTEM)) have been developed. .

The function of the development of the comprehensive vehicle diagnostic system is to replace imports by configuring one of the basic functions of the tune-up equipment, which depended on the total amount of imports, and to realize self-diagnosis by integrating various electronic control systems. And functions to diagnose various types of defects faced through experience in the market, such as functions that provide various troubleshooting methods, and to avoid maintenance methods that depended on the operator's experience, The system can be diagnosed with

The present invention has been made in view of the above points, and is inexpensive, suitable for the domestic market, capable of simultaneous remote diagnosis, maintenance data search function, trouble diagnosis function, tune up function, learning control function, data analysis function. And it aims to provide a comprehensive vehicle diagnostic device with an exhaust gas analysis function.

1 is a block diagram schematically showing the overall configuration of a comprehensive vehicle diagnostic apparatus according to the present invention.

2 is a block diagram schematically showing the learning control system 60 in FIG.

3 is a block diagram schematically showing the data analysis system 70 in FIG.

* Explanation of symbols for main parts of the drawings

10: power supply (SMPS) 20: main device (industrial computer),

21: SVGA monitor 30: ISA interface circuit,

40: trouble diagnosis system 50: tune-up system,

60: learning control system 61: chip selector,

62: frequency generator 63: duty generator

64: voltage generator 65: output drive circuit

70: data analysis system 71: maintenance information transmission and reception unit

72: black box 73: wiring tester

74: data analysis device 80: gas analysis system

In order to achieve the above object, the comprehensive vehicle diagnostic apparatus according to the first embodiment of the present invention, the power supply means for stabilizing the input voltage and supplying to each system, and controls the overall operation of the device, as well as maintenance data inquiry A control means having a function, a monitor means connected to the video card of the control means for displaying various control data, an interface circuit for performing an interface between the control means and various diagnostic systems, and a vehicle connected to the serial port through a communication cable. Diagnostic means for diagnosing various electronic control systems, a plurality of measurement probes, tune-up means for analyzing / determining the waveforms of the engine ignition system, charging system, multi-test, oscilloscope, engine performance test, engine type designation, etc. Measured by the serial port of the control means in a dedicated device for It characterized in that it includes a gas analyzer means for transmitting the data.

Further, the comprehensive vehicle diagnostic apparatus according to the second embodiment of the present invention is a vehicle comprehensive diagnostic apparatus according to the first embodiment, and includes various sensors, ECU input terminals, solenoids, relays, lamps, etc. attached to the automobile. And learning learning means for testing the operation of the component and supplying voltage, frequency, duty, etc. as an output signal.

Further, in the vehicle comprehensive diagnostic device according to the third embodiment of the present invention, in the vehicle comprehensive diagnostic device according to the first or second embodiment, a modem is further provided in the control means, and the modem is used. Send / receive maintenance information, analyze driving test data, analyze data input to the black box, inspect all wiring connected to the ECU, request remote maintenance of the data input by fixed diagnosis and tune-up, A data analysis means for performing the analysis is further provided.

EXAMPLE

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing the overall configuration of a vehicle comprehensive diagnostic apparatus according to the present invention.

In FIG. 1, reference numeral 10 denotes a power supply (SMPS: Switching Modulator Power Supply) for stabilizing an AC input input through an outlet by an automatic voltage regulation (AVR) circuit, which is a voltage stabilization module, to each system. 20 is the main device with the maintenance data inquiry function as well as the overall operation of the comprehensive diagnosis device, and 21 is 800 × 640 dots or more connected to the video card (SVGA card) of the main device 20 to display various control data. SVGA monitor, 30 is the ISA interface circuit for the interface between the CPU of the main unit 20 and various diagnostic systems, 40 is a variety of electronic control system of the vehicle connected to the serial port through the RS-232 cable, for example, EMS, TCS (Traking) Trouble shooting system for diagnosing control system, air bag, antilock brake system (ABS) and auto adjust suspension (AAS), 50 has multiple measuring probes The tune-up system analyzes / determinates the ignition system, charging system, multi-test, oscilloscope, engine performance test, engine type designation, etc. of the engine through waveforms. , A learning control system that tests the operation of components such as lamps and supplies voltage, frequency, duty, etc. as output signals, and 70 transmits / receives maintenance information through a telephone line using a modem installed in the main device 20. A data analysis system for analyzing driving test data, analyzing data input to a black box, inspecting all wiring connected to the ECU, and requesting and analyzing remote maintenance of the data input by fault diagnosis and tune-up; 80 is a gas analysis system that transmits the measurement data from the dedicated equipment for measuring the exhaust gas of the vehicle (not shown) to the serial port of the main device 20 All.

Next, the main components of the present invention will be described in more detail.

[Main unit 20]

Since the main device 20 requires stable operation even when used for a long time, it uses an IBM PC / 486 DX-2 compatible industrial computer and ensures compact board size, improved performance, and reliability with a precise design. The 8KB BIOS ROM provides PC compatibility, and up to 8MB of main memory allows the operating program to run more efficiently. Equipped with two serial ports for serial communication via RS-232 cable, and one parallel port (printer port) for printing and printing data.

In addition, various operating programs and data related to various vehicles to be diagnosed are stored. Also, a hard disk driver, a floppy disk driver, and a CD-ROM driver capable of inputting and outputting various data are installed so that data such as maintenance data can be viewed. It is.

Maintenance data includes general specifications (data required for maintenance work such as vehicle specifications, inspection values and maintenance values), electrical wiring diagrams (circuit diagrams and position diagrams related to various electrical devices), and maintenance data for each symptom. Procedures and related data), defect code maintenance data (maintenance procedures for maintenance of the specified fault code contents of the ECU and related circuit diagrams, layout diagrams, terminal voltage tables, etc.) and sensor value maintenance data (data to be checked in the event of sensor abnormalities). And related materials). These maintenance data can be viewed by maintenance data management programs stored in storage devices such as hard disks, floppy disks and CD-ROMs, so that the operator can easily learn and maintain the correct data.

[Fixed diagnosis system 40]

The fixed diagnosis of the vehicle firstly interconnects the self-diagnosis connector of the troubleshooting system 40 with the self-diagnosis connector (not shown) installed in the car, and the secondary storage devices such as hard disks, floppy disks, and CD- This can be checked by the fault diagnosis operating program stored in the ROM.

On the other hand, in a vehicle without a self-diagnosis function, a connection may be made using a modular or an adapter and then checked by a fault diagnosis operation program.

[Tune-up system 50]

The tune up inputs and outputs the signal inputted by the ignition waveform drill probe to the computer 20, which is the main device, through an A / D converter (not shown), and displays waveforms. Similar to

A gas analyzer (not shown) is connected through the serial communication port and inputs the measured value to the main computer 20.

Here, the types of probes include primary, secondary, battery, current, vacuum pressure, temperature, timing light probes, and the like.

[Learning Control System 60]

2 is a block diagram showing a schematic configuration of the learning control system 60.

The learning control system 60 is controlled by the interface circuit 30 as a whole function of the IC chip so that the IC chip can be read and written to an address designated by the computer 20 as shown in FIG. The chip selector 61 to select, the frequency generator 62 whose frequency period is adjusted according to the control of the computer 20, and the duty generator 63 which can arbitrarily vary the duty according to the adjustment of the computer 20. And a voltage generator 64 for receiving data to create a voltage, and an output driver circuit 65 for driving a current of a frequency output and for producing a required capacity when outputting a voltage to a selected IC chip.

[Data Analysis System 70]

3 is a block diagram showing a schematic configuration of a data analysis system 70.

As shown in FIG. 3, the data analysis system 70 transmits and receives relevant maintenance information of a vehicle by using a modem installed in the main apparatus 20, and performs maintenance information transmission / reception unit for requesting or analyzing the collected data. 71), a black box 72 that connects to the parallel port (printer port) of the main unit 20 via a printer cable and assigns and analyzes the phenomenon occurring during operation at a very high speed, and all connected to the ECU. And a wiring tester 73 for measuring contact resistance, sensor resistance, voltage, and the like of the wiring, and a KJ-1 data analyzing apparatus 74 for recording and analyzing a phenomenon occurring during operation.

[Gas Analysis System (80)]

The gas analysis system 80 is a system which examines the combustion state of an engine by measuring exhaust gas by the exclusive equipment which measures exhaust gas of an automobile.

Table 1 shows the range of measurement items.

(*) Indicates 4-gas analyzer only

As described above, according to the comprehensive vehicle diagnostic apparatus of the present invention, the vehicle fault diagnosis function includes a maintenance data inquiry function, a failure diagnosis function, a tune up function, a learning control function, a data analysis function, and an exhaust gas analysis function. Can be diagnosed automatically and import substitution effect can be achieved.

In addition, it can be configured at low cost, suitable for the domestic market, and can be remotely diagnosed at a long time.

Claims (3)

Power supply means (10) for stabilizing the input voltage and supplying to each system, the control means (20) for controlling the overall operation of the apparatus and the maintenance data inquiry function, the video card of the control means (20) Monitor means 21 connected to the control means for displaying various control data, the interface circuit 30 responsible for the interface between the control means 20 and the various diagnostic systems, various electronic control of the vehicle connected to the serial port through a communication cable A diagnostic means 40 for diagnosing the system, a tune-up means 50 having a plurality of measurement probes for analyzing / determining the ignition system of the engine, the charging system multitest, the oscilloscope, the engine performance test, the engine type designation, and the like as a waveform; And a gas analyzing means (80) for transmitting the measurement data to the serial port of the control means (20) in the dedicated equipment for measuring the exhaust gas of the vehicle. Automobile comprehensive diagnostic system. The learning control means (60) according to claim 1, wherein the learning control means (60) for testing the operation of various sensors, ECU input terminals, solenoids, relays, lamps, and the like attached to the vehicle and supplying voltage, frequency, duty, and the like as an output signal is provided. Comprehensive car diagnostic device, characterized in that further provided. According to claim 1 or 2, further comprising a modem in the control means 20, using the modem to transmit and receive maintenance information, to analyze the driving test data, the data input to the black box And a data analyzing means (80) for analyzing, inspecting all wirings connected to the ECU, and performing remote maintenance request and analysis of data inputted by fault diagnosis and tune-up.