KR20040059140A - A diagnostic display system using CAN communications between controllers of a wheel loader - Google Patents
A diagnostic display system using CAN communications between controllers of a wheel loader Download PDFInfo
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- KR20040059140A KR20040059140A KR1020020085717A KR20020085717A KR20040059140A KR 20040059140 A KR20040059140 A KR 20040059140A KR 1020020085717 A KR1020020085717 A KR 1020020085717A KR 20020085717 A KR20020085717 A KR 20020085717A KR 20040059140 A KR20040059140 A KR 20040059140A
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- South Korea
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- control device
- wheel loader
- communication
- control unit
- engine
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- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 238000003745 diagnosis Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract 5
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000004092 self-diagnosis Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/0205—Diagnosing or detecting failures; Failure detection models
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
본 발명은 CAN 통신에 의한 휠 로더 제어기의 고장 진단장치에 관한 것으로 보다 상세하게는 전자제어식 디젤엔진의 출력을 동력원으로 하여 유압펌프를 구동시켜 유압의 힘으로 각종 작업장치를 구동하고 자동변속기능이 있는 트랜스미션 제어장치를 구동하는 유압식 건설장비인 휠 로더에 있어서, 각종 제어장치를 CAN 통신을 통해 해당 제어장치의 고장을 진단하고, 고장이 있을 경우 상세한 고장정보를 통신으로 전송하여 운전석에 구비된 디스플레이 장치 고장코드 또는 문자로 표시하여 운전자가 손쉽게 고장을 확인하고 적절한 조치를 할 수 있도록 하기 위한 CAN 통신에 의한 휠 로더 제어의 고장 진단장치에 관한 것이다.The present invention relates to a fault diagnosis device for a wheel loader controller by CAN communication. More specifically, the hydraulic pump is driven using the output of an electronically controlled diesel engine as a power source to drive various work devices using hydraulic power, and the automatic transmission function is provided. In the wheel loader, which is a hydraulic construction device that drives a transmission control device, the control device diagnoses a failure of a corresponding control device through CAN communication, and in case of a failure, transmits detailed failure information through communication to display in the driver's seat. The present invention relates to a fault diagnosis device for wheel loader control by CAN communication to display a device fault code or a letter so that an operator can easily identify a fault and take an appropriate action.
종래에는 도 1 에서와 같이 휠 로더의 주행장치인 트랜스미션에는 트랜스미션 제어장치(TCU : Transmission unit)가 구비되어 전자식으로 자동변속 및 각종 제어를 수행하고, 디스플레이 장치에 연결되어 있어 트랜스미션의 변속상태 및 각종 전기적, 유압적인 이상상태 및 고장상태를 표시한다.Conventionally, a transmission control unit (TCU: Transmission unit) is provided in a transmission, which is a traveling device of a wheel loader, as shown in FIG. 1 to perform automatic transmission and various control electronically, and is connected to a display device so that the transmission state of the transmission and various Indication of electrical and hydraulic abnormal and fault conditions.
또한, 엔진에도 엔진 제어장치(ECM : Engine control unit)가 구비되어 엔진의 회전수 및 각종 제어를 수행하고 또한 엔진의 운행상태 및 이상발생시 고장진단 기능을 수행하며, 운전상태정보와 이상신호 또는 고장진단신호를 엔진으로부터 검출될 경우 운전석에 별도로 구비된 디스플레이 장치에 표시한다.In addition, the engine is equipped with an engine control unit (ECM: engine control unit) to perform the engine rotation speed and various controls, and to perform the function of troubleshooting the engine operating conditions and abnormalities, and to provide operation status information and abnormal signals or failures. When the diagnostic signal is detected from the engine, it is displayed on a display device separately provided in the driver's seat.
상술한바와 같은 종래의 휠 로더 각 전자 제어장치의 경우 각각의 제어장치마다 해당하는 표시장치가 별도로 구비되어 있고, 각 제어기 상호간의 통신이 불가함으로서 상호 제어기간 정보 데이터의 교환이 불가하였으며, 각 제어기간의 고장진단 디스플레이 장치를 복수로 구비해야 하는 문제점이 있었다.As described above, each of the conventional wheel loader electronic controllers is provided with a corresponding display device for each controller, and communication between the respective controllers is not possible, so that mutual control period information data cannot be exchanged. There has been a problem that a plurality of fault diagnosis display devices have to be provided.
본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 안출되는 것으로, 휠 로더의 트랜스미션 제어장치인 TCU로부터 CAN 통신 신호를 받아 기어의 단수 및 자기진단, 에러코드를 디스플레이 장치 표시할 수 있고, 전자식 엔진 제어장치인 ECM으로부터 CAN통신 신호를 받아 엔진 상태 및 자기 진단 에러코드 및 경고 램프를 표시할 수 있는 CAN통신에 의한 휠 로더 제어기의 고장 진단장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, can receive the CAN communication signal from the transmission control device of the wheel loader TCU can display the number of gears, self-diagnosis, error code display device, electronic engine It is an object of the present invention to provide a fault diagnosis device for a wheel loader controller by CAN communication that can display an engine status, a self-diagnosis error code, and a warning lamp by receiving a CAN communication signal from a control device ECM.
상기와 같은 목적을 달성하기 위한 본 발명은 CAN 통신에 의한 휠 로더 제어기의 고장 진단장치에 관한 것으로, 그 목적은 휠 로더의 트랜스미션 변속레버에 구비된 트랜스미션 제어장치와 CAN통신으로 연결되고 엔진에 구비되어 있는 엔진 제어장치와, 상기 트랜스미션 제어장치 및 장비 제어장치(2)에 CAN통신으로 연결된 장비 제어장치와, 상기 장비 제어장치에 연결되어 상기 모든 제어장치에서 수신된 고장 및 상태정보를 운전석에 하나의 디스플레이 장치에 표시할 수 있는 것을 특징으로 하는 CAN 통신에 의한 휠 로더 제어기의 고장 진단장치를 제공함으로서 달성된다.The present invention for achieving the above object relates to a failure diagnosis apparatus of the wheel loader controller by the CAN communication, the object is connected to the transmission control device provided in the transmission shift lever of the wheel loader in CAN communication and provided in the engine The engine control unit, the equipment control unit connected to the transmission control unit and the equipment control unit (2) by CAN communication, and the fault and status information received from all the control unit connected to the equipment control unit in the driver's seat It is achieved by providing a failure diagnosis apparatus for a wheel loader controller by CAN communication, which can be displayed on the display device of the.
도 1 은 종래의 휠 로더 자기고장 표시장치 구성도,1 is a block diagram of a conventional wheel loader magnetic failure display device,
도 2 는 본 발명의 구성도,2 is a block diagram of the present invention,
도 3 은 본 발명의 제어 흐름도,3 is a control flowchart of the present invention;
도 4 는 본 발명의 디스플레이 장치의 외형도.4 is an external view of a display device of the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
(1) : 트랜스미션 제어장치(TCU) (2) : 엔진 제어장치(ECM)(1): Transmission Control Unit (TCU) (2): Engine Control Unit (ECM)
(3) : 장비 제어장치(MCU) (4) : 디스플레이 장치(DISPLAY UNIT)(3): Equipment control unit (MCU) (4): Display unit
(5) : 게이지 (6) : 경고지시램프(5): Gauge (6): Warning indicator lamp
(7) : LCD 표시장치 (8) : 스위치(7): LCD display (8): Switch
(9) : 속도계(9): speedometer
상기한 바와 같은 목적을 달성하고 종래의 결점을 제거하기 위한 과제를 수행하는 본 발명의 실시예인 구성과 그 작용을 첨부도면에 연계시켜 상세히 설명하면 다음과 같다.When described in detail with reference to the accompanying drawings, the configuration and the operation of the embodiment of the present invention to achieve the object as described above and to perform the task for eliminating the conventional drawbacks.
도 2 는 본 발명의 구성도로서, 트랜스미션 변속레버에 구비된 트랜스미션 제어장치(1)와, 상기 트랜스미션 제어장치(1)에 CAN통신으로 연결되고 엔진에 구비되어 있는 엔진 제어장치(2)와, 상기 트랜스미션 제어장치(1) 및 엔진 제어장치(2)에 CAN통신으로 연결된 장비 제어장치(3)와, 상기 장비 제어장치에 연결된 디스플레이 장치(4)로 구성된다.2 is a configuration diagram of the present invention, a transmission control device 1 provided in a transmission shift lever, an engine control device 2 connected to the transmission control device 1 by CAN communication and provided in an engine; An equipment control device 3 connected to the transmission control device 1 and the engine control device 2 via CAN communication, and a display device 4 connected to the device control device.
상기 트랜스미션 제어장치(1)에서 CAN 통신 신호를 받아 기어의 단수와 자기진단 및 에러코드를 디스플레이 장치(4)에 표시할 수 있고, 상기 엔진 제어장치(2)에서도 CAN 통신 신호를 받아 엔진 상태 및 자기 진단 에러코드 및 경고 램프등을 디스플레이 장치(4)에 표시할 수 있으며, 또한 엔진 냉각수온도, 엔진회전수, 흡입 공기온도등의 정보 데이터를 디스플레이 장치(4)에 각종 게이지 또는 숫자로 표시하고, 해당 경고조건에 도달할 경우 램프와 경고음을 발생할 수 있다.The transmission control unit 1 receives the CAN communication signal and displays the number of gears, the self-diagnosis and the error code on the display device 4, and the engine control unit 2 receives the CAN communication signal to receive the engine status and Self-diagnosis error codes and warning lamps can be displayed on the display device 4, and information data such as engine coolant temperature, engine speed and intake air temperature can be displayed on the display device 4 by various gauges or numbers. If the corresponding warning condition is reached, the lamp and warning sound may be generated.
상기 트랜스미션 제어장치(1)에서 트랜스미션의 오일 온도 신호와 현재의 변속기어 단수 정보를 장비 제어장치(3)에 전송하면, 장비 제어장치(3)에서 디스플레이 장치(4)에 전송하여 해당 게이지를 구동하고 현재의 기어단수를 표시하도록 하며, 상기 장비제어 장치(3)도 장비 자체의 자기고장진단을 실시하여 고장발생 신호를 디스플레이 장치(4)에 직렬통신으로 전송하여 표시한다.When the transmission controller 1 transmits the oil temperature signal of the transmission and the current transmission gear stage information to the equipment controller 3, the equipment controller 3 transmits the signal to the display device 4 to drive the gauge. And the current gear stage is displayed, and the equipment control device 3 also performs a self-failure diagnosis of the equipment itself to transmit and display a failure occurrence signal to the display device 4 by serial communication.
도 3 은 본 발명의 제어 흐름도로서, 각각의 제어기에 전원이 투입되면 제어기에서 CAN 통신을 준비하고 어떤 하나 또는 복수의 제어기로부터 CAN 통신 요구신호가 전달되면 해당신호를 판독하여 그 신호가 엔진 제어장치(2)로부터의 고장신호인지 아니면 트랜스미션 제어장치(1)로부터 수신된 고장신호인지 장비제어 장치(3)에서 구분하여 디스플레이 장치(4)에 해당하는 데이터에 맞도록 디스플레이 신호를 전송하면 디스플레이 장치(4)에서 해당 정보를 액정이나 램프 또는 게이지에 표시한다.3 is a control flow chart of the present invention, when power is supplied to each controller, the controller prepares for CAN communication, and when a CAN communication request signal is transmitted from any one or a plurality of controllers, the corresponding signal is read and the engine control device (2) Whether the fault signal from the transmission control device (1) or the fault signal received from the transmission control device (3) is transmitted to the display device to match the data corresponding to the display device 4, the display device ( In 4), display the corresponding information on the liquid crystal, lamp or gauge.
도 4 는 본 발명의 디스플레이 장치의 외형도로서, 중심부에 속도계(9)가 구비되어 있고, 그 일측에 아날로그 상대값을 표시하는 게이지(5)가 형성되고, 타측으로 문자 및 숫자 또는 기호로 현재의 단속기 단수와 온도 및 가동시간, 고장코드등을 표시할 수 있는 LCD표시장치(7)가 형성되어 있으며, 상기 LCD표시장치(7) 측면으로 스위치(8)가 형성되어 있고, 상기 속도계(9) 상측으로 경고지시램프(6)가 형성되어 있다.4 is an external view of the display device according to the present invention, in which a speedometer 9 is provided at a central portion thereof, and a gauge 5 for displaying an analog relative value is formed at one side thereof, and is present in letters and numbers or symbols at the other side. LCD display 7 is provided which can display the number of interrupters, temperature, operation time, fault code, etc., and switch 8 is formed on the side of the LCD display 7, and the speedometer 9 The warning indication lamp 6 is formed upward.
본 발명은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 고안이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.
상기와 같은 구성 및 작용에 의해 기대할 수 있는 본 발명의 효과는 각각의 제어기의 고장을 표시하는 표시장치가 개별 제어기마다 구비되지 않고 하나의 디스플레이 장치에 고장유무를 표시하고 점검할 수 있도록 함으로써 구성이 간단해지고, 운전자의 조작이 간편해지며, 쉽게 고장내용의 파악 및 수리가 가능한 매우 유용한 발명이다.The effect of the present invention that can be expected by the above configuration and operation is that the display device for indicating the failure of each controller is not provided for each individual controller, it is possible to display and check the presence or absence of the failure on one display device It is a very useful invention that simplifies, the operator's operation is simple, and the failure details can be easily identified and repaired.
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CN102729826A (en) * | 2012-06-29 | 2012-10-17 | 惠州市德赛西威汽车电子有限公司 | Automotive information display auxiliary system |
KR101673309B1 (en) | 2015-08-21 | 2016-11-07 | 현대자동차주식회사 | Method and system for diagnosising controller area network communication, and computer readable medium for performing the same |
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KR100216053B1 (en) * | 1994-06-27 | 1999-08-16 | 정몽규 | Monitoring method and device of shift control unit in automatic transmission |
KR100335930B1 (en) * | 1999-12-23 | 2002-05-10 | 이계안 | Method for displaying engine torque through can communication |
KR100357579B1 (en) * | 2000-07-13 | 2002-10-18 | 현대자동차주식회사 | Ram monitoring tool of transmition control unit for vehicle |
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CN102729826A (en) * | 2012-06-29 | 2012-10-17 | 惠州市德赛西威汽车电子有限公司 | Automotive information display auxiliary system |
KR101673309B1 (en) | 2015-08-21 | 2016-11-07 | 현대자동차주식회사 | Method and system for diagnosising controller area network communication, and computer readable medium for performing the same |
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