KR200181177Y1 - Self diagnostic device for the power steering system - Google Patents
Self diagnostic device for the power steering system Download PDFInfo
- Publication number
- KR200181177Y1 KR200181177Y1 KR2019960050456U KR19960050456U KR200181177Y1 KR 200181177 Y1 KR200181177 Y1 KR 200181177Y1 KR 2019960050456 U KR2019960050456 U KR 2019960050456U KR 19960050456 U KR19960050456 U KR 19960050456U KR 200181177 Y1 KR200181177 Y1 KR 200181177Y1
- Authority
- KR
- South Korea
- Prior art keywords
- power steering
- self
- vehicle speed
- engine
- throttle valve
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/0481—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures
- B62D5/0484—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures for reaction to failures, e.g. limp home
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/005—Electro-mechanical devices, e.g. switched
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/30—Sensors
- B60Y2400/303—Speed sensors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
본 고안은 파워 스티어링의 자기진단장치에 관한 것으로서, 더욱 상세하게는 파워 스티어링에 자기진단 기능을 추가하여 엔진제어 전반 등에 대한 모니터의 신뢰성을 향상시킬 수 있도록 하는 파워 스티어링의 자기진단장치에 관한 것이다. 즉 이는 파워 스티어링의 자기 진단모드를 설정하기위한 진단스위치(400)와, 차속을 감지하는 차속센서(100)와, 스로틀밸브의 개도량을 감지하는 TPS(200)와, 자기진단 모드시 차속과 스로틀 밸브의 개도량에 따른 엔진의 부하상태에 의해 파워 스티어링의 이상여부를 판정하고 이상시 경고신호를 출력하는 엔진 전자제어장치(300)와, 이 엔진 전제어장치(300)의 경고신호를 인가받아 파워 스티어링의 이상상태를 알리는 경고부(500)를 구성함으로써, 각종 모니터의 신뢰성을 향상시킬 수 있는 것이다.The present invention relates to a self-diagnostic device for power steering, and more particularly, to a self-diagnostic device for power steering to improve the reliability of the monitor for the overall engine control by adding a self-diagnostic function to the power steering. That is, the diagnostic switch 400 for setting the self-diagnosis mode of the power steering, the vehicle speed sensor 100 for detecting the vehicle speed, the TPS 200 for detecting the opening amount of the throttle valve, and the vehicle speed in the self-diagnosis mode The engine electronic control device 300 which determines whether the power steering is abnormal according to the load state of the engine according to the opening amount of the throttle valve and outputs a warning signal in case of an abnormality, and the warning signal of the engine front control device 300 are applied. By configuring the warning unit 500 to notify the abnormal state of the power steering, the reliability of the various monitors can be improved.
Description
본 고안은 파워 스티어링의 자기진단장치에 관한 것으로서, 더욱 상세하게는 파워 스티어링에 자기진단 기능을 추가하여 엔진제어 전반 등에 대한 모니터의 신뢰성을 향상시킬 수 있도록 하는 파워 스티어링의 자기진단장치에 관한 것이다.The present invention relates to a self-diagnostic device for power steering, and more particularly, to a self-diagnostic device for power steering to improve the reliability of the monitor for the overall engine control by adding a self-diagnostic function to the power steering.
통상 스티어링 장치는 차량속도가 고속이 될 수록 조향력이 가벼워진다. 따라서 배력이 일정한 파워 스티어링은 고속시 스티어링 휠이 너무 가볍게 되어 위험하다. 이를 방지하기위하여 엔진 회전수에 따라 조향력을 변화시키는 감응식과 차속에 따라 변화시키는 차속 감응식이 있다. 조향성능의 고도, 운전자 기호의 다양화 전자기술의 발달 등으로 인하여 여러 가지 정보를 엔진 전자제어장치에 입력시켜 조향력을 변화시키는 전자제어 파워 스티어링이 실용화되고 있다.In general, the higher the vehicle speed, the lower the steering force is. Therefore, constant power steering is dangerous because the steering wheel is too light at high speed. In order to prevent this, there is an induction type that changes the steering force according to the engine speed and a vehicle speed type that changes according to the vehicle speed. Due to the development of the advanced steering technology, diversification of driver's preferences, and the like, electronic control power steering for changing steering power by inputting various information into the engine electronic controller has been put into practical use.
파워 스티어링의 조향력은 파워 실린더에 걸리는 압력에 의하여 결정되며 이 압력을 변화시키는 수단으로 유량제어방식과 반력제어방식이 있다. 유량제어방식은 밸브 등에 의하여 파워 스티어링의 유압회로를 통과하는 오일을 제한 또는 바이패스시켜 파워 실리던에 걸리는 압력을 제어하는 방식이다. 이 방식은 시스템이 간단하며 조향력 변화의 폭이 그다지 크지 않다. 반력제어방식은 컨트롤 밸브의 개도를 직접 제어하는 방식이다. 파워 실린더에 걸리는 압력은 컨트롤 밸브의 개도로 결정하기대문에 조향력의 변화의 폭을 크게 할 수 있다. 그 반면 반력 플런져 등의 기구가 별도로 필요하게 되어 시스템이 복잡하게 된다.The steering force of the power steering is determined by the pressure applied to the power cylinder, and there are a flow control method and a reaction force control method as means for changing the pressure. The flow rate control method is a method of controlling the pressure applied to the power cylinder by restricting or bypassing oil passing through the hydraulic circuit of the power steering by a valve or the like. This is a simple system and not very variable in steering power variation. The reaction force control method directly controls the opening of the control valve. The pressure applied to the power cylinder determines the opening degree of the control valve, which can widen the variation in steering force. On the other hand, a mechanism such as a reaction force plunger is required separately, which complicates the system.
파워 스티어링 시스템의 자기진단, 즉 파워 스티어링 시스템은 엔진제어의 각 파라미터 학습조건에 포함되어 있음으로 파워 스티어링에 대한 자기진단이 요구됨으로써 이를 제공하고자 하는데 그 목적이 있다.The self-diagnosis of the power steering system, that is, the power steering system is included in each parameter learning condition of the engine control, so the purpose is to provide a self-diagnosis for the power steering is required.
제1도는 본 고안의 실시예에 따른 구성의 블록도,1 is a block diagram of a configuration according to an embodiment of the present invention,
제2도는 본 고안의 동작상태를 도시한 흐름도이다.2 is a flowchart illustrating an operating state of the present invention.
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
100 : 차속센서 200 : TPS100: vehicle speed sensor 200: TPS
300 : 엔진 전자제어장치 400 : 진단 스위치300: engine electronic control device 400: diagnostic switch
500 : 경고부500: warning unit
이하 본 고안의 일 실시예에 따른 구성을 첨부된 예시도면과 함께 보다 상세히 설명하면 다음과 같다.Hereinafter, the configuration according to an embodiment of the present invention will be described in detail with the accompanying drawings.
도 1은 본 고안의 실시예에 따른 구성 블록도이고, 도 2는 본 고안의 동작상태를 도시한 흐름도이다.1 is a configuration block diagram according to an embodiment of the present invention, Figure 2 is a flow chart showing an operating state of the present invention.
본 고안에 따른 구성은 도 1에 도시한 바와같이 파워 스티어링의 자기 진단모드를 설정하기위한 진단스위치(400)와, 차속을 감지하는 차속센서(100)와, 스로틀밸브의 개도량을 감지하는 TPS(200:스로틀밸브의 개도량을 감지하는 센서를 말한다)와, 차속과 스로틀 밸브의 개도량에 따른 엔진의 부하상태에 의해 파워 스티어링의 이상여부를 판정하고 이상시 경고신호를 출력하는 엔진 전자제어장치(300)와, 이 엔진 제어장치(300)의 경고신호를 인가받아 파워 스티어링의 이상상태를 알리는 경고부(500)로 구성된다.According to the present invention, as shown in FIG. 1, the diagnostic switch 400 for setting the self-diagnosis mode of the power steering, the vehicle speed sensor 100 for detecting the vehicle speed, and the TPS for detecting the opening amount of the throttle valve are shown. (200: refers to a sensor for detecting the opening amount of the throttle valve), and the engine electronic control to determine whether the power steering abnormality according to the load state of the engine according to the vehicle speed and the opening amount of the throttle valve, and outputs a warning signal in case of abnormality Apparatus 300 and a warning unit 500 for notifying the abnormal state of the power steering by receiving the warning signal of the engine control device 300.
도 2는 본 고안의 동작상태를 도시한 흐름도로서, 자기진단모드를 확인하는 단계와, 자기 진단모드시 차속을 감지하고 이 차속이 2,500RPM이상인지를 확인하는 단계와, 2,500RPM이상으로 검출시 스로틀밸브의 개도량에 검출하고 개도량이 50%이상인지를 확인하는 단계와, 50%이상시 이상상태로 판정하고 이를 알리는 경고신호를 출력하는 단계를 수행함을 보이고 있다.2 is a flowchart illustrating an operation state of the present invention, the method comprising: checking a self-diagnosis mode, detecting a vehicle speed in a self-diagnosis mode, and checking whether the vehicle speed is more than 2,500 RPM, and detecting more than 2,500 RPM. It detects the opening amount of the throttle valve and checks whether the opening amount is 50% or more, and when it is 50% or more, determines that it is in an abnormal state and outputs a warning signal informing of this.
이와같이 구성된 본 고안의 작용을 설명한다.The operation of the present invention configured as described above will be described.
대기상태를 유지하면서 자기 진단모드의 설정상태를 확인한다(S21). 그리고 자기 진단모드가 설정되면 엔진 전자제어장치(300)는 차속센서(100)에 의해 감지되는 차속에 대한 정보(S22)와 TPS(200)에 의해 감지되는 스로틀밸브의 개도량에 대한 정보(S24), 즉 엔진의 부하상태에 대한 정보를 인가받은 엔진 전자제어장치(300)는 먼저 차속이 2,500RPM이상인지를 확인한다(S23). 그 결과 2,500RPM이하인 경우에는 파워 스티어링 시스템이 정상인 것으로 판정하고 종래와 같이 파워 스티어링의 동작을 제어한다.The setting state of the self-diagnosis mode is checked while maintaining the standby state (S21). And when the self-diagnosis mode is set, the engine electronic control apparatus 300 is information on the vehicle speed detected by the vehicle speed sensor 100 (S22) and information about the opening amount of the throttle valve detected by the TPS 200 (S24). ), Ie, the engine electronic control apparatus 300 receiving information about the load state of the engine first checks whether the vehicle speed is 2,500 RPM or more (S23). As a result, when it is 2,500 RPM or less, it determines with the power steering system being normal, and controls the operation of a power steering like conventionally.
그러나 차속이 2,500RPM이상인 경우에는 TPS(200)에 의해 감지되는 스로틀밸브의 개도량이 50%이상인지를 확인한다(S25). 그리고 TPS(200)에 의해 감지되는 스로틀밸브의 개도량이 50%이하, 즉 엔진의 부하가 50%이하인 것으로 판정되는 경우에는 파워 스티어링 시스템이 정상인 것으로 판정하고 위에서와 같이 파워 스티어링의 동작을 제어한다. 하지만 TPS(200)에 의해 감지되는 스로틀밸브의 개도량이 50%이상으로 검출되는 경우에는 파워 스티어링에 이상이 발생된 것으로 판정(S26)하고, 경고부(500)를 구동시켜 파워 스티어링 시스템의 이상상태를 알리는 경고신호를 출력한다.However, when the vehicle speed is more than 2,500 RPM, it is checked whether the opening amount of the throttle valve detected by the TPS 200 is 50% or more (S25). When the opening amount of the throttle valve sensed by the TPS 200 is determined to be 50% or less, that is, the load of the engine is 50% or less, the power steering system is determined to be normal and the operation of the power steering is controlled as described above. However, when the opening amount of the throttle valve detected by the TPS 200 is detected to be 50% or more, it is determined that an abnormality has occurred in the power steering (S26), and the warning unit 500 is driven to an abnormal state of the power steering system. Outputs a warning signal to indicate.
이상에서와 같이 본 고안은 자기 진단모드시 차속센서와 TPS에 의해 감지되는 차속과 스로틀밸브의 개도량이 각각 2,500RPM이상, 그리고 50%이상시 파워 스티어링 시스템이 이상상태인 것으로 판정하고 이를 알리는 경고신호를 출력함으로써, 파워 스티어링 시스템의 자기진단을 구현할 수 있는 것이다.As described above, the present invention determines that the power steering system is abnormal when the opening speed of the vehicle speed and the throttle valve detected by the vehicle speed sensor and the TPS in the self-diagnosis mode is higher than 2,500 RPM and 50%, respectively. By outputting the self-diagnosis of the power steering system can be implemented.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960050456U KR200181177Y1 (en) | 1996-12-17 | 1996-12-17 | Self diagnostic device for the power steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960050456U KR200181177Y1 (en) | 1996-12-17 | 1996-12-17 | Self diagnostic device for the power steering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980037434U KR19980037434U (en) | 1998-09-15 |
| KR200181177Y1 true KR200181177Y1 (en) | 2000-05-15 |
Family
ID=19479942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960050456U KR200181177Y1 (en) | 1996-12-17 | 1996-12-17 | Self diagnostic device for the power steering system |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR200181177Y1 (en) |
-
1996
- 1996-12-17 KR KR2019960050456U patent/KR200181177Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980037434U (en) | 1998-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5429092A (en) | Throttle control system | |
| KR940004808B1 (en) | Vehicle control apraratus | |
| JP2901849B2 (en) | Fail detection device for anti-skid control device | |
| US6559612B2 (en) | System and method for the electronic control of an actuator assigned to an automatic control system in motor vehicles | |
| JPS60107458A (en) | Controller of steering force for power running gear | |
| KR200181177Y1 (en) | Self diagnostic device for the power steering system | |
| KR100764137B1 (en) | A difficulty diagnosing and putting apparatus in eps system | |
| US10933885B1 (en) | Accelerator pedal signal modifier safety bypass systems | |
| JP3308322B2 (en) | Vehicle electrical equipment control device | |
| JPS59120572A (en) | Abnormality detecting device in power steering | |
| KR0179571B1 (en) | Controller and its method of oil pressure servo system | |
| KR100216042B1 (en) | Error diagnostic unit for secondary air system | |
| KR100507204B1 (en) | Fault detecting device and method of a speed restricting system for a commercial vehicle | |
| JPH01216057A (en) | Car equipped with engine rotation control circuit | |
| JPH037672A (en) | Load driving circuit | |
| KR19980058678A (en) | Power steering switch fault warning device and fault determination method | |
| KR940011847B1 (en) | Method of steering control of vehicle | |
| JPH0374281A (en) | Self-diagnostic device of vehicle speed sensor in vehicle control device | |
| KR100269961B1 (en) | Vehicle speed reduction system at reset timing for an electronic control unit | |
| KR970041032A (en) | How to diagnose actuator failure of 4 wheel steering | |
| KR20050064844A (en) | Automatic direction lamp control system in forklift truck | |
| KR970036037A (en) | Speed control device by self-diagnosis in case of car performance abnormality and method | |
| KR970066197A (en) | Automatic Transmission Solenoid Fault Diagnosis Device and Method Thereof | |
| JPH02112649A (en) | Controller for internal combustion engine | |
| CN117885804A (en) | Electrohydraulic power steering device, risk assessment method, medium and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 20030212 Year of fee payment: 4 |
|
| LAPS | Lapse due to unpaid annual fee |