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KR20120061494A - Apparatus and Method for Detecting Trouble of Motor Driving Power Steering System - Google Patents

Apparatus and Method for Detecting Trouble of Motor Driving Power Steering System Download PDF

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KR20120061494A
KR20120061494A KR1020100122828A KR20100122828A KR20120061494A KR 20120061494 A KR20120061494 A KR 20120061494A KR 1020100122828 A KR1020100122828 A KR 1020100122828A KR 20100122828 A KR20100122828 A KR 20100122828A KR 20120061494 A KR20120061494 A KR 20120061494A
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South Korea
Prior art keywords
mdps
failure
torque sensor
exceeds
steering
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KR1020100122828A
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Korean (ko)
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전병호
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현대모비스 주식회사
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Priority to KR1020100122828A priority Critical patent/KR20120061494A/en
Priority to CN201110354583.4A priority patent/CN102485544B/en
Publication of KR20120061494A publication Critical patent/KR20120061494A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/04Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0457Power-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
    • B62D5/0481Power-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
    • B62D5/049Power-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 detecting sensor failures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W50/00Details 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
    • B60W50/02Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
    • B60W50/0205Diagnosing or detecting failures; Failure detection models
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/04Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/0457Power-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
    • B62D5/0481Power-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
    • B62D5/0484Power-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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D6/00Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • B62D6/08Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque
    • B62D6/10Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque characterised by means for sensing or determining torque
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT 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
    • B60W50/00Details 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
    • B60W50/02Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
    • B60W50/0205Diagnosing or detecting failures; Failure detection models
    • B60W2050/021Means for detecting failure or malfunction

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

본 발명은 MDPS 시스템의 고장 검출 장치 및 방법에 대하여 개시한다. 본 발명의 일면에 따른 MDPS 시스템의 고장 검출 방법은, 차량이 이그니션 온 상태이면,토크 센서에 고장이 발생하였는지를 확인하는 단계; 상기 토크 센서에 고장이 발생하였으면, 상기 차량의 엔진 구동에 의한 얼터네이터(Alternator) 전압이 임계전압을 초과하는지를 확인하는 단계; 상기 얼터네이터 전압이 임계전압을 초과하면, 상기 엔진의 회전수가 임계회전수를 초과하는지를 확인하는 단계; 및 상기 엔진의 회전수가 임계회전수를 초과하면, 상기 토크 센서의 고장을 사용자에게 경고하는 단계를 포함하는 것을 특징으로 한다.The present invention discloses a failure detection apparatus and method of the MDPS system. The failure detection method of the MDPS system according to an aspect of the present invention, if the vehicle is in the ignition on state, checking whether a failure has occurred in the torque sensor; If a failure occurs in the torque sensor, checking whether an alternator voltage caused by engine driving of the vehicle exceeds a threshold voltage; If the alternator voltage exceeds a threshold voltage, checking whether the engine speed exceeds the engine speed; And warning the user of the failure of the torque sensor if the engine speed exceeds the engine speed threshold.

Description

MDPS 시스템의 고장 검출 장치 및 방법{Apparatus and Method for Detecting Trouble of Motor Driving Power Steering System}Fault detection apparatus and method of MDPS system {Apparatus and Method for Detecting Trouble of Motor Driving Power Steering System}

본 발명은 MSPS 시스템에 관한 것으로서, 더 구체적으로는 토크 센서의 고장 진단에 대한 정확도를 높일 수 있는 MDPS 시스템의 고장 검출 장치 및 방법에 관한 것이다.The present invention relates to an MSPS system, and more particularly, to an apparatus and method for detecting a failure of an MDPS system capable of increasing the accuracy of a failure diagnosis of a torque sensor.

일반적으로, MDPS(Motor Driving Power Steering) 시스템은 운전자의 핸들 조작을 입력받으면, 튜닝된 맵을 이용하여 입력에 대응하는 출력 토크를 연산하고, 모터 구동 토크를 아웃풋 샤프트에 인가시켜 차량을 조향한다.In general, when the motor driving power steering (MDPS) system receives the driver's steering wheel manipulation, the MDPS system calculates an output torque corresponding to the input using the tuned map, and applies the motor driving torque to the output shaft to steer the vehicle.

MDPS 시스템에서 가장 중요한 신호는 토크 센서 신호와 모터 신호이므로, 토크 센서 신호와 모터 신호에 문제가 발생하면, 정상적인 입출력을 산출할 수 없어, 매뉴얼 모드로 진입하는 것이 안전하다. 이렇게 하여야, 자체적으로 스티어링(Self Steering)되거나 원치않는 스티어링(Unwanted Steering)을 막을 수 있기 때문이다.Since the most important signals in the MDPS system are the torque sensor signal and the motor signal, if a problem occurs in the torque sensor signal and the motor signal, normal input / output cannot be calculated, and it is safe to enter the manual mode. This can be done to prevent self-steering or unwanted steering by itself.

더욱이, 토크 센서 신호는 광학식 센서의 특성상 먼지 등의 이물질에 취약하므로, 초기 전원 온 시나, 엔진 크랭킹(Cranking) 시의 전원 변동에 대한 강건성을 확보하는 것이 중요하다.Furthermore, since the torque sensor signal is vulnerable to foreign substances such as dust due to the characteristics of the optical sensor, it is important to secure the robustness against power fluctuations at the time of initial power-on or engine cranking.

종래의 고장 검출 로직은 이그니션 온되어 이그니션 오프되기 전까지의 전 영역에서 토크 센서의 고장을 검출하였다. 따라서, MDPS가 어시스트하지 않는 전원 불안정 구간(도 1의 A 구간: 이그니션 온 내지 엔진 크랭킹 구간)을 포함하므로, 실제로 고장이 발생하지 않았는데 고장이 발생한 것으로 오판단할 우려가 있다.Conventional failure detection logic has detected a failure of the torque sensor in all areas before ignition on and ignition off. Therefore, since MDPS includes a power supply instability section (A section in FIG. 1: ignition on to engine cranking section) in which the MDPS does not assist, there is a fear that a failure has occurred although a failure has not actually occurred.

뿐만 아니라, 종래의 고장 검출 로직은 토크 센서 내 먼지에 의해 광량이 변화한 경우에도 고장을 검출하는 문제가 있었다.In addition, the conventional failure detection logic has a problem of detecting a failure even when the amount of light is changed by the dust in the torque sensor.

본 발명은 전술한 바와 같은 기술적 배경에서 안출된 것으로서, 설정된 MDPS의 조타 구간에서만 토크 센서의 고장을 진단할 수 있는 MDPS 시스템의 고장 검출 장치 및 방법을 제공하는 것을 그 목적으로 한다.The present invention has been made in the technical background as described above, and an object thereof is to provide a failure detection apparatus and method of the MDPS system that can diagnose the failure of the torque sensor only in the steering section of the set MDPS.

본 발명은 전원과 엔진구동이 어느 정도 안정화된 후에 토크 센서의 고장 여부를 진단할 수 있는 MDPS 시스템의 고장 검출 장치 및 방법을 제공하는 것을 다른 목적으로 한다.Another object of the present invention is to provide a failure detection apparatus and method for an MDPS system capable of diagnosing a failure of a torque sensor after power and engine driving are stabilized to some extent.

본 발명의 일면에 따른 MDPS 시스템의 고장 검출 방법은, 차량이 이그니션 온 상태이면, 토크 센서에 고장이 발생하였는지를 확인하는 단계; 상기 토크 센서에 고장이 발생하였으면, 상기 차량의 엔진 구동에 의한 얼터네이터(Alternator) 전압이 임계전압을 초과하는지를 확인하는 단계; 상기 얼터네이터 전압이 임계전압을 초과하면, 상기 엔진의 회전수가 임계회전수를 초과하는지를 확인하는 단계; 및 상기 엔진의 회전수가 임계회전수를 초과하면, 상기 토크 센서의 고장을 사용자에게 경고하는 단계를 포함하는 것을 특징으로 한다.According to an aspect of the present invention, a failure detection method of an MDPS system includes: checking whether a failure occurs in a torque sensor when the vehicle is in an ignition on state; If a failure occurs in the torque sensor, checking whether an alternator voltage caused by engine driving of the vehicle exceeds a threshold voltage; If the alternator voltage exceeds a threshold voltage, checking whether the engine speed exceeds the engine speed; And warning the user of the failure of the torque sensor if the engine speed exceeds the engine speed threshold.

본 발명의 다른 면에 따른 MDPS 시스템의 고장 검출 장치는, 이그니션 온되면, 얼터네이터 전압이 임계전압을 초과하는지 및 엔진 회전수가 임계회전수를 초과하면, MDPS의 조타 구간이라고 판단하는 조건 판단부; 상기 조건 판단부의 판단결과 상기 MDPS의 조타 구간이면, MDPS의 고장 여부를 진단하는 진단부; 및 상기 조건 판단부의 판단결과 상기 MDPS의 조타 구간이 아니면, 사용자에 의해 핸들이 조작됨에 따라 감지된 조향각값을 초기화하는 초기화부를 포함하는 것을 특징으로 한다.The failure detection apparatus of the MDPS system according to another aspect of the present invention, if the ignition is turned on, if the alternator voltage exceeds the threshold voltage and the engine speed exceeds the threshold speed, a condition determination unit for determining the steering section of the MDPS; A diagnosis unit for diagnosing a failure of the MDPS when the steering unit is a steering section of the condition determination unit; And an initialization unit for initializing a steering angle value detected as a handle is manipulated by a user when the steering period of the MDPS is not determined as a result of the determination of the condition determination unit.

본 발명에 따르면, 전원 온이 조작된 상황이나, 엔진 크랭킹에 의해 전원 변동이 발생하는 등과 같은 전원 불안정한 구간을 피하여 토크 센서의 고장 여부를 진단함으로써, 전원 불안정 구간에서 토크 센서의 고장을 오인식하던 종래의 문제점을 개선할 수 있는 효과가 있다.According to the present invention, by diagnosing the failure of the torque sensor by avoiding a power unstable period such as a situation in which the power-on is operated or a power fluctuation occurs due to engine cranking, the error of the torque sensor in the power unstable period is misidentified. There is an effect that can improve the conventional problems.

뿐만 아니라, 본 발명은 먼지 등의 이물질에 의하여 토크 센서의 고장이 오인식되던 종래의 문제점을 개선할 수 있다. In addition, the present invention can improve the conventional problem that the failure of the torque sensor is misidentified by the foreign matter such as dust.

도 1은 종래의 MDPS 시스템의 고장 검출 범위를 도시한 그래프.
도 2는 본 발명의 실시예에 따른 MDPS 시스템의 고장 검출 장치를 도시한 구성도이다.
도 3은 본 발명의 실시예에 따른 MDPS 시스템의 고장 검출 방법을 도시한 흐름도.
도 4는 본 발명의 실시예에 따른 MDPS 시스템의 고장 검출 범위를 도시한 그래프.
1 is a graph showing a fault detection range of a conventional MDPS system.
2 is a block diagram showing a failure detection apparatus of the MDPS system according to an embodiment of the present invention.
3 is a flowchart illustrating a failure detection method of an MDPS system according to an exemplary embodiment of the present invention.
4 is a graph illustrating a failure detection range of an MDPS system according to an embodiment of the present invention.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. 한편, 본 명세서에서 사용된 용어는 실시예들을 설명하기 위한 것이며 본 발명을 제한하고자 하는 것은 아니다. 본 명세서에서, 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다. 명세서에서 사용되는 "포함한다(comprises)" 및/또는 "포함하는(comprising)"은 언급된 구성소자, 단계, 동작 및/또는 소자는 하나 이상의 다른 구성소자, 단계, 동작 및/또는 소자의 존재 또는 추가를 배제하지 않는다.Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms " comprises, " and / or "comprising" refer to the presence or absence of one or more other components, steps, operations, and / Or additions.

이제 본 발명의 바람직한 실시예에 대하여 첨부한 도면을 참조하여 상세히 설명하기로 한다. 도 2는 본 발명의 실시예에 따른 MDPS 시스템의 고장 검출 장치를 도시한 구성도이다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 2 is a block diagram showing a failure detection apparatus of the MDPS system according to an embodiment of the present invention.

도 2에 도시된 바와 같이, MDPS 시스템의 고장 검출 장치(20)는 판단부(210), 진단부(220) 및 초기화부(230)를 포함한다.As shown in FIG. 2, the failure detection apparatus 20 of the MDPS system includes a determination unit 210, a diagnosis unit 220, and an initialization unit 230.

판단부(210)는 차량의 이그니션 온 상태에서 토크 센서에 고장이 발생하면, 얼터네이터 전압이 임계전압을 초과하는지 및 엔진 회전수가 임계회전수를 초과하는지를 판단한다. 여기서, 임계전압은 10V이고, 임계회전수는 500rpm일 수 있다.When the failure of the torque sensor occurs in the ignition on state of the vehicle, the determination unit 210 determines whether the alternator voltage exceeds the threshold voltage and the engine speed exceeds the threshold speed. Here, the threshold voltage may be 10V, and the threshold speed may be 500 rpm.

진단부(220)는 판단부(210)의 판단결과 MDPS의 조타 구간이면, 토크 센서의 데이터를 전송 제어하여 경고등 또는 계기판을 통해 MDPS(Motor Driving Power Steering)의 고장 발생이 사용자에게 경고 되도록 한다.The diagnosis unit 220 controls the transmission of the data of the torque sensor when the steering section of the MDPS is determined by the determination unit 210 so that a failure of the motor driving power steering (MDPS) is warned to the user through a warning light or an instrument panel.

초기화부(230)는 판단부(210)의 판단결과 MDPS의 조타 구간이 아니면, 이후의 판단을 위해서 사용자에 의해 핸들이 조작됨에 따라 감지된 조향각값을 초기화한다.The initialization unit 230 initializes the steering angle value detected as the steering wheel is operated by the user for the subsequent determination, if it is not the steering section of the MDPS, as a result of the determination by the determination unit 210.

이와 같은 구성으로, 본 발명은 차량 키가 이그니션 온 되기만 하고, 시동이 걸리지 않은 상황에서는 핸들이 조작되더라도, 토크 센서의 고장 여부를 판단하지 않아, 고장 검출의 오인식을 방지할 수 있다.With such a configuration, the present invention does not determine whether or not the torque sensor is broken even if the steering wheel is operated in a situation where the vehicle key is only ignition-on and the starting is not started, and thus, misrecognition of failure detection can be prevented.

이하, 도 3 및 도 4을 참조하여 본 발명의 실시예에 따른 MDPS 시스템의 고장 검출 방법에 대하여 설명한다.Hereinafter, a failure detection method of an MDPS system according to an exemplary embodiment of the present invention will be described with reference to FIGS. 3 and 4.

도 3은 본 발명의 실시예에 따른 MDPS 시스템의 고장 검출 방법을 도시한 흐름도이고, 도 4는 본 발명의 실시예에 따른 MDPS 시스템의 고장 검출 범위를 도시한 그래프이다.3 is a flowchart illustrating a failure detection method of an MDPS system according to an exemplary embodiment of the present invention, and FIG. 4 is a graph illustrating a failure detection range of an MDPS system according to an exemplary embodiment of the present invention.

도 3을 참조하면, MDPS 시스템의 고장 검출 장치(20)는 차량이 이그니션 온 상태이면(S210의 예), 토크 센서의 고장 여부를 확인한다(S220).Referring to FIG. 3, if the failure detection device 20 of the MDPS system is in an ignition-on state (YES in S210), it may determine whether the torque sensor is in failure (S220).

MDPS 시스템의 고장 검출 장치(20)는 확인결과 토크 센서의 고장이 발생하였으면, 얼터네이터 전압이 임계전압을 초과하는지(S230), 엔진회전수가 임계회전수를 초과하는 MDPS의 조타 구간인지를 확인한다(S240). 여기서, 임계전압은 10V이며, 임계회전수는 500rpm일 수 있다.The failure detection device 20 of the MDPS system checks whether the alternator voltage exceeds the threshold voltage (S230), and whether the engine speed exceeds the threshold speed when the failure of the torque sensor occurs (S230). S240). Here, the threshold voltage is 10V, the threshold speed may be 500rpm.

MDPS 시스템의 고장 검출 장치(20)는 확인결과 MDPS의 조타 구간이면, 토크 센서의 데이터를 전송 제어(DTC)한다(S260).The failure detection device 20 of the MDPS system transmits (DTC) the data of the torque sensor when the confirmation result is the steering section of the MDPS (S260).

그에 따라, MDPS 시스템의 고장 검출 장치(20)는 경고등을 점등하여 토크 센서의 고장 발생을 알린다(S270).Accordingly, the failure detection device 20 of the MDPS system turns on a warning light to notify the occurrence of a failure of the torque sensor (S270).

MDPS 시스템의 고장 검출 장치(20)는 확인결과 MDPS의 조타 구간(도 4의 B 및 MDPS Assist)이 아니면, 더 이상 조향각값을 산출하지 않으며, 이미 산출된 조향각값도 초기화한다(S280). 즉, MDPS의 조타 구간은 MDPS에 의하여 핸들 조작시에 차량이 조향되는 구간이다.If the failure detection device 20 of the MDPS system is not a steering section (B and MDPS Assist of FIG. 4) of the MDPS system, the steering angle value is no longer calculated, and the steering angle value already calculated is also initialized (S280). That is, the steering section of the MDPS is a section in which the vehicle is steered when the steering wheel is operated by the MDPS.

이와 같이, 전원 온이 조작된 상황이나, 엔진 크랭킹에 의해 전원 변동이 발생하는 등과 같은 전원 불안정한 구간을 피하여 토크 센서의 고장 여부를 진단함으로써, 전원 불안정 구간에서 토크 센서의 고장을 오인식하던 종래의 문제점을 개선할 수 있는 효과가 있다.As described above, by diagnosing a failure of the torque sensor by avoiding a power unstable period such as a situation in which the power-on is operated or a power fluctuation occurs due to engine cranking, a failure of the torque sensor in the power unstable period is misunderstood. There is an effect that can improve the problem.

뿐만 아니라, 본 발명은 먼지 등의 이물질에 의하여 토크 센서의 고장이 오인식되던 종래의 문제점을 개선할 수 있다.In addition, the present invention can improve the conventional problem that the failure of the torque sensor is misidentified by the foreign matter such as dust.

이상, 본 발명의 구성에 대하여 첨부 도면을 참조하여 상세히 설명하였으나, 이는 예시에 불과한 것으로서, 본 발명이 속하는 기술분야에 통상의 지식을 가진자라면 본 발명의 기술적 사상의 범위 내에서 다양한 변형과 변경이 가능함은 물론이다. 따라서 본 발명의 보호 범위는 전술한 실시예에 국한되어서는 아니되며 이하의 특허청구범위의 기재에 의하여 정해져야 할 것이다.While the present invention has been described in detail with reference to the accompanying drawings, it is to be understood that the invention is not limited to the above-described embodiments. Those skilled in the art will appreciate that various modifications, Of course, this is possible. Accordingly, the scope of protection of the present invention should not be limited to the above-described embodiments, but should be determined by the description of the following claims.

Claims (5)

차량이 이그니션 온 상태이면, 토크 센서에 고장이 발생하였는지를 확인하는 단계;
상기 토크 센서에 고장이 발생하였으면, 상기 차량의 엔진 구동에 의한 얼터네이터(Alternator) 전압이 임계전압을 초과하는지를 확인하는 단계;
상기 얼터네이터 전압이 상기 임계전압을 초과하면, 상기 엔진의 회전수가 임계회전수를 초과하는지를 확인하는 단계; 및
상기 엔진의 회전수가 상기 임계회전수를 초과하면, 상기 토크 센서의 고장을 사용자에게 경고하는 단계
를 포함하는 것인 MDPS(Motor Driving Power Steering) 시스템의 고장 검출 방법.
If the vehicle is in an ignition on state, checking whether a failure has occurred in the torque sensor;
If a failure occurs in the torque sensor, checking whether an alternator voltage caused by engine driving of the vehicle exceeds a threshold voltage;
If the alternator voltage exceeds the threshold voltage, checking whether the engine speed exceeds the engine speed; And
Warning the user of the failure of the torque sensor if the engine speed exceeds the critical speed
Failure detection method of the motor driving power steering (MDPS) system comprising a.
제1항에 있어서, 상기 임계전압은,
10V인 MDPS 시스템의 고장 검출 방법.
The method of claim 1, wherein the threshold voltage,
10V MDPS system failure detection method.
제1항에 있어서, 상기 임계회전수는,
500rpm인 MDPS 시스템의 고장 검출 방법.
The method of claim 1, wherein the critical speed is,
Fault detection method for MDPS system at 500 rpm.
제1항에 있어서,
상기 얼터네이터 전압이 상기 임계전압을 초과하지 않거나, 상기 엔진의 회전수가 상기 임계회전수를 초과하지 않으면, 조향각값을 초기화하는 단계
를 더 포함하는 MDPS 시스템의 고장 검출 방법.
The method of claim 1,
Initiating a steering angle value if the alternator voltage does not exceed the threshold voltage or if the engine speed does not exceed the threshold speed
Failure detection method of the MDPS system further comprising.
차량의 이그니션 온되면, 얼터네이터 전압이 임계전압을 초과하고, 엔진 회전수가 임계회전수를 초과하면, MDPS의 조타 구간이라고 판단하는 조건 판단부;
상기 조건 판단부의 판단결과 상기 MDPS의 조타 구간이면, MDPS(Motor Driving Power Steering)의 고장 여부를 진단하는 진단부; 및
상기 조건 판단부의 판단결과 상기 MDPS의 조타 구간이 아니면, 사용자에 의해 핸들이 조작됨에 따라 감지된 조향각값을 초기화하는 초기화부
를 포함하는 MDPS 시스템의 고장 검출 장치.
A condition determination unit determining that the steering section of the MDPS is performed when the alternator voltage exceeds the threshold voltage and the engine speed exceeds the threshold speed, when the vehicle is turned on;
A diagnosis unit for diagnosing a failure of Motor Driving Power Steering (MDPS) if the steering section of the MDPS is determined as a result of the determination of the condition determination unit; And
If not determined that the steering section of the MDPS steering unit, the initialization unit for initializing the steering angle value detected as the handle is operated by the user
Failure detection apparatus of the MDPS system comprising a.
KR1020100122828A 2010-12-03 2010-12-03 Apparatus and Method for Detecting Trouble of Motor Driving Power Steering System Ceased KR20120061494A (en)

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