KR20130019940A - Diagnostic device for suspension - Google Patents

Diagnostic device for suspension

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Publication number
KR20130019940A
KR20130019940A KR1020110082250A KR20110082250A KR20130019940A KR 20130019940 A KR20130019940 A KR 20130019940A KR 1020110082250 A KR1020110082250 A KR 1020110082250A KR 20110082250 A KR20110082250 A KR 20110082250A KR 20130019940 A KR20130019940 A KR 20130019940A
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KR
South Korea
Prior art keywords
spring
suspension
inclination angle
alarm
angle sensor
Prior art date
Application number
KR1020110082250A
Other languages
Korean (ko)
Inventor
이주왕
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020110082250A priority Critical patent/KR20130019940A/en
Publication of KR20130019940A publication Critical patent/KR20130019940A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/018—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
    • B60G17/0185—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/018—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B60G17/01908—Acceleration or inclination sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/044—Self-pumping fluid springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052—Pneumatic spring characteristics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels

Abstract

PURPOSE: A suspension diagnostic device is provided to prevent an accident by detecting a state of a spring included in a suspension in order to diagnose a breakdown and by informing a driver of the breakdown of the spring. CONSTITUTION: A suspension diagnostic device comprises a spring(101), a tilt sensor(103), a data input unit(105), a control unit(107), an alarm unit(109), and a display unit(111). The tilt sensor is connected to the spring and detects an inclination angle on a change of the spring. The data input unit includes a data which is about the spring and the tilt sensor. The control unit determines whether the detected inclination angle is in a normal range. The alarm unit outputs a voice and an alarm lamp when the detected inclination angle is in an abnormal range. The display unit indicates a location of a spring, which a problem occurs, and a suspension, in which the problem of the spring occurs, with an image when the detected inclination angle is in the abnormal range. [Reference numerals] (101) Spring; (103) Tilt sensor; (105) Data input unit; (107) Control unit; (109) Alarm unit; (111) Display unit

Description

서스펜션 진단 장치{Diagnostic device for suspension}Suspension diagnostic device {Diagnostic device for suspension}

본 발명은 서스펜션 진단 장치에 관한 것으로서, 보다 상세하게는 서스펜션에 구비되는 스프링에 대한 고장 진단을 수행하는 장치에 관한 것이다.The present invention relates to an apparatus for diagnosing suspension, and more particularly, to an apparatus for diagnosing failure of a spring provided in a suspension.

일반적으로 서스펜션에 대한 고장 진단은 서스펜션과 연결된 압력 센서를 이용하여 압력이 떨어지거나, 압력 센서가 고장일 때, 이러한 사실을 운전자에게 알리는 방식으로 진행되었다.In general, failure diagnosis of the suspension was performed by informing the driver of a pressure drop or a failure of the pressure sensor using a pressure sensor connected to the suspension.

그러나, 서스펜션에 구비된 스프링이 일정범위 이상 구부러지거나, 꺾여 버리는 경우, 이러한 고장에 대해서는 경고를 알리는 기능이 없어, 대형 트럭과 같이, 스프링이 구비된 서스펜션을 이용하는 차량의 경우, 서스펜션의 이상 여부를 확인하기 어렵고, 차량 적재량이 적절한지 여부를 운전자가 확인하기도 어렵다는 문제점이 있다.However, if the spring provided in the suspension is bent or bent over a certain range, there is no function to warn of such a failure, and in the case of a vehicle using a suspension equipped with a spring, such as a heavy truck, whether the suspension is abnormal There is a problem that it is difficult to check, and it is difficult for the driver to check whether the vehicle load is appropriate.

본 발명은 서스펜션에 구비되는 스프링 상태를 감지하여 고장 진단을 수행함으로써, 서스펜션의 스프링에 대한 문제가 발생하는 경우에도 운전자에게 이를 알릴 수 있는 서스펜션 진단 장치를 제공하는데 그 목적이 있다.An object of the present invention is to provide a suspension diagnostic apparatus that can notify a driver even when a problem with a spring of the suspension occurs by detecting a state of the spring provided in the suspension to perform a failure diagnosis.

본 발명은 스프링과 연결되어, 상기 스프링의 변화에 따른 경사각을 감지하는 경사각 센서, 음성 또는 경고 램프를 이용하여 경고를 알릴 수 있는 경보 알람부, 및 상기 경사각 센서에 의해 감지된 경사각이 정상 범위를 벗어난 경우, 상기 경보 알람부를 구동시키는 제어부를 포함한다.The present invention is connected to the spring, the inclination angle sensor for detecting the inclination angle according to the change of the spring, an alarm alarm unit for notifying the warning using a voice or warning lamp, and the inclination angle detected by the inclination angle sensor is in the normal range If out, it comprises a control unit for driving the alarm alarm unit.

본 발명에 따르면, 서스펜션의 스프링이 고장 나는 경우에도 운전자에게 이를 알릴 수 있으므로, 운전자는 차량 과적 또는 도로 상태에 따른 사고를 미리 예방할 수 있다.According to the present invention, the driver can be notified even when the spring of the suspension fails, the driver can prevent the accident due to vehicle overload or road conditions in advance.

또한, 본 발명은 초기 데이터를 입력하여 초기값을 설정하므로, 차량 수리에 따라 경사각 센서가 추가되거나, 스프링 상수가 변경되는 경우에도, 초기 데이터를 변경함으로써, 변경 후 스프링에 대한 고장 진단을 지속적으로 실시할 수 있다.In addition, since the present invention sets the initial value by inputting the initial data, even when the inclination angle sensor is added or the spring constant is changed according to the repair of the vehicle, the initial data is changed to continuously diagnose the failure of the spring after the change. It can be carried out.

또한, 본 발명은 다양한 외적 요인에 의해 발생할 수 있는 스프링 고장을 운전자에게 알려, 적절한 조치를 취하게 함으로써, 차량을 정상적으로 유지 및 관리하는데 도움이 된다.In addition, the present invention helps to maintain and manage the vehicle normally by informing the driver of spring failures that may be caused by various external factors and taking appropriate measures.

도 1은 본 발명의 일실시예에 따른 서스펜션 진단장치를 나타내는 구성도이다.
도 2는 서스펜션의 스프링에 따른 상태를 나타내는 도면이다.
도 3은 본 발명의 일실시예에 따른 서스펜션의 스프링에 대한 경사각 감지 센서의 감지 범위를 나타내는 도면이다.
도 4는 본 발명의 일실시예에 따른 서스펜션 진단방법을 나타내는 흐름도이다.1 is a block diagram showing a suspension diagnosis apparatus according to an embodiment of the present invention.
2 is a view showing a state according to the spring of the suspension.
3 is a view showing a detection range of the inclination angle detection sensor for the spring of the suspension according to an embodiment of the present invention.
4 is a flowchart illustrating a suspension diagnosis method according to an embodiment of the present invention.

도 1은 본 발명의 일실시예에 따른 서스펜션 진단장치를 나타내는 구성도이다.1 is a block diagram showing a suspension diagnosis apparatus according to an embodiment of the present invention.

도 1에 도시된 바와 같이, 본 발명에 따른 서스펜션 진단장치는 스프링(101), 경사각 센서(103), 데이터 입력부(105), 제어부(107), 경고 알림부(109) 및 디스플레이부(111)를 포함할 수 있다.As shown in FIG. 1, the suspension diagnosis apparatus according to the present invention includes a spring 101, an inclination angle sensor 103, a data input unit 105, a control unit 107, a warning notification unit 109, and a display unit 111. It may include.

스프링(101)은 서스펜션에 구비되는 스프링으로서, 리프 서스펜션(Leaf Suspension), 에어 서스펜션(Air Suspension), 프론트 서스펜션(Front Suspension), 리어 서스펜션(Rear Suspension) 등에 구비될 수 있으며, 적재량을 포함하는 차량의 하중 또는 도로 상태에 따라 구부러진다.The spring 101 is a spring provided in the suspension, and may be included in a leaf suspension, an air suspension, a front suspension, a rear suspension, and a vehicle including a load. Bends depending on the load or road conditions.

경사각 센서(103)는 스프링(101)에 연결되어, 스프링(101)이 구부러지는 정도를 감지하여 스프링(101)의 변화에 대한 경사각을 감지한다.The inclination angle sensor 103 is connected to the spring 101, and detects the degree of bending of the spring 101 to detect the inclination angle with respect to the change of the spring 101.

데이터 입력부(105)는 스프링(101) 및 경사각 센서(103)에 대한 데이터가 입력되는 장치로서, 상기 데이터 입력부(105)를 통해 입력되는 데이터를 기준으로 스프링이 구부러짐에 따라 발생하는 경사각에 대한 정상 범위 및 경사각 센서(103)의 초기값이 설정된다. 데이터 입력부(105)를 통해 입력되는 데이터는 경사각 센서(103)의 수량, 경사각 센서(103)의 종류 및 스프링 상수 등이 될 수 있다. 경사각 센서(103)의 초기값은 차량이 공차 상태일 때, 스프링의 경사각으로 설정될 수도 있다.The data input unit 105 is a device to which data for the spring 101 and the inclination angle sensor 103 are input, and is a normal to the inclination angle generated as the spring is bent based on the data input through the data input unit 105. The initial values of the range and tilt angle sensors 103 are set. The data input through the data input unit 105 may be a quantity of the inclination angle sensor 103, a type of the inclination angle sensor 103, a spring constant, and the like. The initial value of the inclination angle sensor 103 may be set to the inclination angle of the spring when the vehicle is in the tolerance state.

제어부(107)는 상기 경사각 센서(103)에 의해 감지된 스프링의 경사각이 정상 범위에 해당하는지 여부를 판단한다. 경사각이 정상 범위를 벗어난 경우, 제어부(107)는 경고 알림부(109)를 구동시켜, 운전자에게 경보를 알린다. 상기 경사각의 정상 범위에 대해서는 하기 도 3에서 상세하게 설명한다.The controller 107 determines whether the inclination angle of the spring detected by the inclination angle sensor 103 corresponds to a normal range. When the inclination angle is out of the normal range, the control unit 107 drives the warning notification unit 109 to notify the driver of an alarm. The normal range of the inclination angle will be described in detail with reference to FIG. 3.

또한, 제어부(107)는 데이터 입력부(105)를 통해 입력된 데이터를 이용하여 경사각에 대한 정상 범위 및 경사각 센서(103)의 초기값을 설정한다.In addition, the controller 107 sets the normal range for the inclination angle and the initial value of the inclination angle sensor 103 using the data input through the data input unit 105.

경고 알림부(109)는 제어부(107)에 의해 구동되며, 상기 경사각 센서(103)에 의해 감지된 경사각이 정상 범위를 벗어난 경우, 음성 또는 경고 램프를 출력할 수 있는 장치이다. 따라서, 운전자는 오디오 신호로 출력되는 경보 또는 경고 램프를 통해 출력되는 빛을 통해 서스펜션의 스프링에 문제가 발생하였음을 확인할 수 있다.The warning notification unit 109 is driven by the control unit 107 and is a device capable of outputting a voice or warning lamp when the inclination angle detected by the inclination angle sensor 103 is out of a normal range. Accordingly, the driver may confirm that a problem occurs in the spring of the suspension through the light output through the alarm or warning lamp output as an audio signal.

디스플레이부(111)는 제어부(107)에 의해 구동되며, 상기 경사각 센서(103)에 의해 감지된 경사각이 정상 범위를 벗어난 경우, 문제가 발생한 스프링 또는 스프링이 장착된 서스펜션의 위치를 이미지로 표시할 수 있다.The display 111 is driven by the controller 107, and when the inclination angle detected by the inclination angle sensor 103 is out of a normal range, an image of a spring having a problem or a suspension in which the spring is mounted may be displayed as an image. Can be.

한편, 경보 알람부(109) 및 디스플레이부(111)는 제어부(107)에 의해 자동적으로 구동될 수도 있으나, 운전자가 서스펜션의 스프링 상태를 확인하고자, 확인 버튼(미도시)을 누르는 경우에도 현재 스프링 상태를 나타내는 신호를 출력할 수 있다. 예를 들어, 경보 알람부(109)를 통해 “정상”이라는 음성 신호가 출력되거나, 디스플레이부(111)를 통해 현재 상태가 정상임을 나타내거나, 감지되고 있는 경사각 자체를 표시하는 이미지가 출력될 수 있다.Meanwhile, although the alarm alarm unit 109 and the display unit 111 may be automatically driven by the control unit 107, even if the driver presses a confirmation button (not shown) to check the spring state of the suspension, the current spring A signal indicating the state can be output. For example, a voice signal of “normal” may be output through the alarm and alarm unit 109, or an image may be output through the display 111 to indicate that the current state is normal or to display the detected tilt angle itself. have.

본 발명에 따른 서스펜션 진단 장치는 복수의 스프링 또는 복수의 서스펜션에 대한 고장 진단을 하기 위해 복수의 경사각 센서를 포함할 수 있다.
The suspension diagnosis apparatus according to the present invention may include a plurality of tilt angle sensors for diagnosing a failure of a plurality of springs or a plurality of suspensions.

도 2는 서스펜션의 스프링에 따른 상태를 나타내는 도면이다.2 is a view showing a state according to the spring of the suspension.

도 2의 (a)에 도시된 바와 같이, 경사각 센서가 제1타입인 경우, 센서의 장착 방향이 상향방향이므로, 기본값은 양(+)의 값을 갖게 된다. 따라서, 차량에 적정한 하중이 부가되어 스프링이 휘어진 정도가 소정 범위의 양(+)의 값을 갖는 경우, 정상 범위로 판단되며, 스프링에 작용하는 힘이 임계치 이상인 경우, 스프링이 꺾여 기울기가 소정 범위의 음(-)의 값을 갖는 경우, 비정상 범위로 판단된다.As shown in FIG. 2A, when the inclination angle sensor is the first type, since the mounting direction of the sensor is upward, the default value has a positive value. Therefore, when an appropriate load is applied to the vehicle and the degree of bending of the spring has a positive value in a predetermined range, it is determined as a normal range. When the force acting on the spring is greater than or equal to the threshold, the spring is bent and the slope is in a predetermined range. If it has a negative value of, it is determined to be an abnormal range.

또한, 도 2의 (b)에 도시된 바와 같이, 경사각 센서가 제2타입인 경우, 센서의 장착 방향이 하향방향이므로, 기본값은 음(-)의 값을 갖게 된다. 따라서, 스프링이 휘어진 정도가 소정 범위의 음(-)의 값을 갖는 경우, 정상 범위로 판단되며, 스프링에 작용하는 힘이 임계치 이상인 경우, 스프링이 꺾여 기울기가 소정 범위의 양(+)의 값을 갖는 경우, 비정상 범위로 판단된다.In addition, as shown in (b) of Figure 2, when the inclination angle sensor is the second type, since the mounting direction of the sensor is a downward direction, the default value has a negative value (-). Therefore, when the degree of bending of the spring has a negative value in a predetermined range, it is determined to be a normal range, and when the force acting on the spring is greater than or equal to the threshold value, the spring is bent and the slope is a positive value in the predetermined range. If it has, it is determined to be an abnormal range.

즉, 단순히 경사각 센서(103)에 감지된 경사도가 양(+)의 값 또는 음(-)의 값인지 여부에 따라 스프링의 상태가 정상인지 판단하기 어렵고, 경사각 센서(103)의 종류에 따라 정상 범위가 다르게 설정될 수 있다.
That is, it is difficult to determine whether the state of the spring is normal depending on whether the inclination detected by the inclination angle sensor 103 is a positive value or a negative value, and it is normal according to the type of the inclination angle sensor 103. The range can be set differently.

도 3은 본 발명의 일실시예에 따른 서스펜션의 스프링에 대한 경사각 감지 센서의 감지 범위를 나타내는 도면이다.3 is a view showing a detection range of the inclination angle detection sensor for the spring of the suspension according to an embodiment of the present invention.

도 3의 (a)에 도시된 바와 같이, 차량이 공차 상태인 경우, 스프링의 경사각은 소정의 양(+)의 값이며, 차량에 적재량이 늘어나면, 스프링이 직선형으로 펼쳐지면서, 스프링의 경사각은 0도로 수렴한다. 차량에 적재량이 더 늘어나면, 스프링이 공차 상태와는 반대 방향으로 구부러지면서 스프링의 경사각은 소정의 음(-)의 값을 갖게된다. 차량에 적재량이 더 늘어나, 스프링에 임계치 이상의 힘이 가해지면, 스프링이 탄성력을 잃고, 꺾이게 된다.As shown in (a) of FIG. 3, when the vehicle is in a tolerance state, the inclination angle of the spring is a predetermined positive value, and when the loading amount is increased in the vehicle, the spring is unfolded in a straight line, and the inclination angle of the spring is Converges to 0 degrees. As the load on the vehicle is further increased, the spring is bent in the opposite direction to the tolerance state and the inclination angle of the spring has a predetermined negative value. As the load on the vehicle increases further, if the spring is exerted a threshold value, the spring will lose its elastic force and bend.

따라서, 도 3의 (b)에 도시된 바와 같이, 스프링의 경사각의 초기값은 A도(Degree)이고, 스프링이 탄성력을 갖고 복원될 수 있는 최대각은 B도(Degree)이다. 따라서, 스프링의 변화에 따른 경사각(θ)의 정상 범위는 B°부터 A°까지이다. 따라서, 경사각 센서(103)에 의해 감지된 경사각이 상기 정상 범위를 벗어나는 경우, 제어부(107)는 경보 알람부(109)를 통해 경고를 출력한다.Thus, as shown in FIG. 3B, the initial value of the inclination angle of the spring is A degrees, and the maximum angle at which the spring can be restored with elasticity is B degrees. Therefore, the normal range of the inclination angle θ according to the change of the spring is from B ° to A °. Therefore, when the inclination angle detected by the inclination angle sensor 103 is out of the normal range, the controller 107 outputs a warning through the alarm alarm unit 109.

예를 들어, 도 2의 (a)에 도시된 제1타입 경사각 센서가 이용되는 경우, A는 30도이고, B는 -10도로 설정될 수 있고, 도 2의 (b)에 도시된 제2타입 경사각 센서가 이용되는 경우, A는 -30도이고, B는 10도로 설정될 수 있다.
For example, when the first type inclination angle sensor shown in (a) of FIG. 2 is used, A may be set to 30 degrees, B may be set to -10 degrees, and the second shown in FIG. When a type tilt angle sensor is used, A may be set to -30 degrees and B to 10 degrees.

도 4는 본 발명의 일실시예에 따른 서스펜션 진단방법을 나타내는 흐름도이다.4 is a flowchart illustrating a suspension diagnosis method according to an embodiment of the present invention.

도 4에 도시된 바와 같이, 먼저 데이터 입력부(105)를 통해 스프링(101) 및 경사각 센서(103)에 대한 데이터가 입력된다(S200).As shown in FIG. 4, first, data for the spring 101 and the inclination angle sensor 103 are input through the data input unit 105 (S200).

다음, 데이터 입력부(105)를 통해 입력된 데이터를 기초로 경사각에 대한 정상 범위 및 경사각 센서(103)의 초기값이 설정된다(S210).Next, the normal range for the inclination angle and the initial value of the inclination angle sensor 103 are set based on the data input through the data input unit 105 (S210).

다음, 경사각 센서(103)에 의해 스프링의 경사각이 감지된다(S220). 스프링(101)은 차량에 가해지는 하중 또는 도로 상태에 따라 구부러지는 정도가 변경될 수 있다.Next, the inclination angle of the spring is detected by the inclination angle sensor 103 (S220). The degree of bending of the spring 101 may be changed according to a load applied to a vehicle or a road condition.

다음, 제어부(107)는 경사각 센서(103)에 의해 감지된 경사각이 정상 범위를 벗어난 것인지 확인한다(S230). S230확인 결과, 경사각이 정상 범위 이내이면, 서스펜션의 스프링이 정상적으로 동작하는 것으로, 사용자가 확인 버튼(미도시)을 누르는 경우에는 스프링의 동작상태를 나타내는 신호가 출력될 수 있다.Next, the control unit 107 checks whether the inclination angle detected by the inclination angle sensor 103 is outside the normal range (S230). As a result of S230 confirmation, when the inclination angle is within the normal range, the spring of the suspension is normally operated, and when the user presses the confirmation button (not shown), a signal indicating the operation state of the spring may be output.

S230 확인 결과, 경사각이 정상 범위를 벗어난 경우, 제어부(107)는 경고 알림부(109)를 통해 음성 신호 또는 광 신호로 경고를 출력하고, 디스플레이부(111)를 통해 고장 위치를 안내할 수 있다(S240).
As a result of S230 checking, when the inclination angle is out of the normal range, the control unit 107 may output a warning by a voice signal or an optical signal through the warning notification unit 109, and guide the location of the failure through the display unit 111. (S240).

본 발명은 프로세서가 읽을 수 있는 기록매체에 프로세서가 읽을 수 있는 코드로서 구현하는 것이 가능하다. 프로세서가 읽을 수 있는 기록매체는 프로세서에 의해 읽혀질 수 있는 데이터가 저장되는 모든 종류의 기록장치를 포함한다. 프로세서가 읽을 수 있는 기록매체의 예로는 ROM, RAM, CD-ROM, 자기 테이프, 플로피디스크, 광 데이터 저장장치 등이 있다. 또한 프로세서가 읽을 수 있는 기록매체는 네트워크로 연결된 컴퓨터 시스템에 분산되어, 분산방식으로 프로세서가 읽을 수 있는 코드가 저장되고 실행될 수 있다.The present invention can be embodied as processor readable code on a processor readable recording medium. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of a processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like. In addition, the processor readable recording medium may be distributed over networked computer systems so that code readable by the processor in a distributed manner can be stored and executed.

또한, 본 발명은 상기 실시예에 한정되지 않으며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변형실시도 가능하며, 변형실시는 본 발명의 기술적 사상이나 해결 원리로부터 개별적으로 이해되어서는 안될 것이다.In addition, the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art to which the present invention pertains, and the modifications may be individually understood from the technical idea and the solving principle of the present invention. It should not be.

Claims (7)

서스펜션의 스프링과 연결되는 서스펜션 진단장치에 있어서,
상기 스프링과 연결되어, 상기 스프링의 변화에 따른 경사각을 감지하는 경사각 센서;
음성 또는 경고 램프를 이용하여 경고를 알릴 수 있는 경보 알람부; 및
상기 경사각 센서에 의해 감지된 경사각이 정상 범위를 벗어난 경우, 상기 경보 알람부를 구동시키는 제어부를 포함하는 서스펜션 진단장치.In the suspension diagnosis device connected to the spring of the suspension,
An inclination angle sensor connected to the spring to detect an inclination angle according to a change of the spring;
An alarm alarm unit for notifying a warning using a voice or warning lamp; And
And a control unit for driving the alarm alarm unit when the inclination angle detected by the inclination angle sensor is out of a normal range. 제1항에 있어서,
상기 스프링 및 경사각 센서에 대한 데이터를 입력받는 데이터 입력부를 더 포함하는 서스펜션 진단장치.The method of claim 1,
Suspension diagnosis apparatus further comprises a data input unit for receiving data for the spring and the tilt angle sensor. 제2항에 있어서,
상기 제어부는
상기 데이터 입력부를 통해 입력된 데이터를 기초로 상기 정상 범위 및 상기 경사각 센서의 초기값 중 적어도 하나를 설정하는 것을 특징으로 하는 서스펜션 진단장치.The method of claim 2,
The control unit
Suspension diagnostic apparatus, characterized in that for setting at least one of the normal value and the initial value of the inclination angle sensor based on the data input through the data input unit. 제2항에 있어서,
상기 데이터는 경사각 센서의 수량, 경사각 센서의 종류 및 스프링 상수 중 적어도 하나를 포함하는 것을 특징으로 하는 서스펜션 진단장치.The method of claim 2,
Said data is at least one of a quantity of the inclination angle sensor, a type of the inclination angle sensor, and a spring constant. 제1항에 있어서,
상기 경사각 센서에 의해 감지된 경사각이 정상 범위를 벗어난 경우, 상기 스프링 또는 상기 스프링이 장착된 서스펜션의 위치를 표시하는 디스플레이부를 더 포함하는 서스펜션 진단장치.The method of claim 1,
Suspension diagnosis device further comprises a display unit for displaying the position of the spring or the suspension is mounted when the inclination angle detected by the inclination angle sensor is outside the normal range. 제1항에 있어서,
상기 경보 알람부는 음성 또는 경고 램프를 출력하는 것을 특징으로 하는 서스펜션 진단장치.The method of claim 1,
Suspension diagnosis apparatus, characterized in that for outputting the alarm or warning lamp alarm alarm. 제1항에 있어서,
상기 서스펜션은 리프 서스펜션, 에어 서스펜션, 프론트 서스펜션 및 리어 서스펜션 중 어느 하나인 것을 특징으로 하는 서스펜션 진단장치.The method of claim 1,
The suspension diagnosis device, characterized in that any one of the leaf suspension, air suspension, front suspension and rear suspension.
KR1020110082250A 2011-08-18 2011-08-18 Diagnostic device for suspension KR20130019940A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107444552A (en) * 2016-03-28 2017-12-08 株式会社昭和 Height of car adjusting apparatus
KR20230114451A (en) 2022-01-25 2023-08-01 아주자동차대학 산학협력단 Suspention Alarm Apparatus and Method Thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107444552A (en) * 2016-03-28 2017-12-08 株式会社昭和 Height of car adjusting apparatus
CN107444552B (en) * 2016-03-28 2021-01-01 株式会社昭和 Vehicle height adjusting device
KR20230114451A (en) 2022-01-25 2023-08-01 아주자동차대학 산학협력단 Suspention Alarm Apparatus and Method Thereof

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