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KR100680466B1 - Encoder fault diagnosis circuit of active geometry control system actuator - Google Patents

Encoder fault diagnosis circuit of active geometry control system actuator Download PDF

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Publication number
KR100680466B1
KR100680466B1 KR1020050060149A KR20050060149A KR100680466B1 KR 100680466 B1 KR100680466 B1 KR 100680466B1 KR 1020050060149 A KR1020050060149 A KR 1020050060149A KR 20050060149 A KR20050060149 A KR 20050060149A KR 100680466 B1 KR100680466 B1 KR 100680466B1
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encoder
circuit
fault diagnosis
control system
signals
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KR20070005060A (en
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이병상
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현대모비스 주식회사
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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
    • 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
    • B60G17/0152—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 action on a particular type of suspension unit
    • B60G17/0157—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 action on a particular type of suspension unit non-fluid unit, e.g. electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/42—Electric actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/20—Mounting of accessories, e.g. pump, compressor
    • B60G2204/202—Mounting of accessories, e.g. pump, compressor of cables
    • B60G2204/2022—Mounting of accessories, e.g. pump, compressor of cables using a suspension element (e.g. link, damper or spring) as part of the electrical circuitry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/80—Detection or control after a system or component failure
    • B60G2800/802—Diagnostics

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

본 발명에 따른 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로는, 액티브 지오메트리 컨트롤 시스템 액추에이터 모터에 구비되어 상기 모터의 회전상태를 감지하는 제1 및 제2엔코더회로와; 상기 제1 및 제2엔코더회로의 출력신호를 각각 분압하는 제1 및 제2분압저항회로와; 상기 제1 및 제2분압저항회로의 출력신호를 기준전압과 각각 비교하여 제1 및 제2엔코더신호로서 출력하는 제1 및 제2비교기회로와; 상기 제1 및 제2분압저항회로의 출력신호를 각각 클램프시켜서 제1 및 제2엔코더고장진단신호로서 출력하는 제1 및 제2클램프회로와; 상기 제1 및 제2엔코더신호를 입력받아 지오메트리 액티브 컨트롤 시스템 액추에이터의 동작상태를 판단하고 상기 제1 및 제2엔코더고장진단신호를 입력받아 제1 및 제2엔코더회로의 쇼트 및 오픈상태를 각각 진단하는 마이크로컨트롤러를 포함하여 구성되어, 어떤 엔코더회로의 신호라인이 쇼트 또는 오픈되었는지를 손쉽고 정확하게 판단할 수 있다.An encoder fault diagnosis circuit of an active geometry control system actuator according to the present invention includes: first and second encoder circuits provided in an active geometry control system actuator motor to sense a rotation state of the motor; First and second voltage divider resistor circuits for dividing the output signals of the first and second encoder circuits, respectively; First and second comparator circuits for comparing the output signals of the first and second voltage divider circuits with reference voltages and outputting the first and second encoder signals as first and second encoder signals; First and second clamp circuits for respectively clamping the output signals of the first and second voltage divider resistor circuits and outputting the first and second encoder fault diagnosis signals; Determine the operating state of the geometry active control system actuator by receiving the first and second encoder signals, and diagnose the short and open states of the first and second encoder circuits by receiving the first and second encoder fault diagnosis signals, respectively. It is configured to include a microcontroller to easily and accurately determine which encoder circuit signal line is short or open.

Description

액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로 {Encoder defect diagnosis circuit for AGCS actuator}Encoder defect diagnosis circuit for AGCS actuators in active geometry control system actuators

도 1은 본 발명에 따른 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로의 회로도.1 is a circuit diagram of an encoder fault diagnosis circuit of an active geometry control system actuator according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10, 20 : 엔코더회로 30, 40 : 비교기회로10, 20: encoder circuit 30, 40: comparator circuit

50, 60 : 클램프회로 70 : 마이크로컨트롤러50, 60: clamp circuit 70: microcontroller

R1~R4 : 분압저항회로R1 ~ R4: voltage divider resistor circuit

본 발명은 액티브 지오메트리 컨트롤 시스템 액추에이터에 관한 것으로, 좀더 상세하게는 엑추에이터 모터에 구비되는 엔코더의 고장 발생 여부를 진단하는 회로에 관한 것이다.The present invention relates to an active geometry control system actuator, and more particularly, to a circuit for diagnosing a failure of an encoder provided in an actuator motor.

최근 들어, 액티브 지오메트리 컨트롤 시스템(AGCS: Active Geometry Controlled System)이 개발되어 차량에 적용되고 있는데, 이러한 액티브 지오메트리 컨트롤 시스템은 차량의 토우 각도를 이용해 직진 및 회전 상황에 맞춰 적절한 제어 및 운행을 지원한다.Recently, an Active Geometry Controlled System (AGCS) has been developed and applied to a vehicle. The Active Geometry Control System utilizes the toe angle of the vehicle to support proper control and driving according to the straight and turning conditions.

즉, 액티브 지오메트리 컨트롤 시스템은 차량의 저속 선회 및 고속 직진 주행시에는 범프 토우 크기를 작게 하여 직진 주행성을 향상시키고, 고속 선회시와 횡풍시에는 범프 토우 크기를 크게 하여 횡방향 주행 안정성을 향상시킨다.In other words, the active geometry control system improves the straight running performance by reducing the bump tow size at the time of low speed turning and high speed straight driving of the vehicle, and improves the transverse driving stability by increasing the bump tow size at the time of high speed turning and cross wind.

상기 액티브 지오메트리 컨트롤 시스템은 액티브 지오메트리 컨트롤 시스템의 이상 발생 유무를 감지할 수 있는 고장 진단 기능도 수행하는 것이 바람직하므로, 이에 대한 필요성이 요구되고 있다.Since the active geometry control system preferably performs a failure diagnosis function that can detect the presence or absence of an abnormality of the active geometry control system, a necessity thereof is required.

이에, 본 발명은 액티브 지오메트리 컨트롤 시스템의 엔코더회로와 전자제어유니트 사이의 배선 불량에 의한 고장을 진단하는 회로를 각 엔코더회로마다 별개로 구성함으로써, 어떤 엔코더회로의 신호라인이 쇼트 또는 오픈되었는지를 손쉽고 정확하게 판단할 수 있는 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로를 제공하는데 그 목적이 있다.Accordingly, the present invention provides a circuit for diagnosing a failure due to a wiring failure between the encoder circuit of the active geometry control system and the electronic control unit separately for each encoder circuit, thereby making it easy to determine which signal circuit is shorted or opened. The objective is to provide an encoder fault diagnosis circuit for an active geometry control system actuator that can be accurately determined.

상기한 바와 같은 목적을 달성하기 위한 본 발명에 따른 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로는, 액티브 지오메트리 컨트롤 시 스템 액추에이터 모터에 구비되어 상기 모터의 회전상태를 감지하는 제1엔코더회로와; 상기 제1엔코더회로의 출력신호를 분압하는 제1분압저항회로와; 상기 제1분압저항회로의 출력신호를 기준전압과 비교하여 제1엔코더신호로서 출력하는 제1비교기회로와; 상기 제1분압저항회로의 출력신호를 클램프시켜서 제1엔코더고장진단신호로서 출력하는 제1클램프회로와; 상기 액추에이터 모터에 구비되어 상기 모터의 회전상태를 감지하는 제2엔코더회로와; 상기 제2엔코더회로의 출력신호를 분압하는 제2분압저항회로과; 상기 제2분압저항회로의 출력신호를 기준전압과 비교하여 제2엔코더신호로서 출력하는 제2비교기회로와; 상기 제2분압저항회로의 출력신호를 클램프시켜서 제2엔코더고장진단신호로서 출력하는 제2클램프회로와; 상기 제1 및 제2엔코더신호를 입력받아 지오메트리 액티브 컨트롤 시스템 액추에이터의 동작상태를 판단하고 상기 제1 및 제2엔코더고장진단신호를 입력받아 제1 및 제2엔코더회로의 쇼트 및 오픈상태를 각각 진단하는 마이크로컨트롤러를 포함하여 구성된 것을 특징으로 한다.An encoder fault diagnosis circuit of an active geometry control system actuator according to the present invention for achieving the above object comprises: a first encoder circuit provided in an active geometry control system actuator motor for sensing a rotation state of the motor; A first voltage divider circuit for dividing the output signal of the first encoder circuit; A first comparator circuit for comparing the output signal of the first voltage divider resistance circuit with a reference voltage and outputting it as a first encoder signal; A first clamp circuit for clamping the output signal of said first voltage divider resistance circuit and outputting it as a first encoder fault diagnosis signal; A second encoder circuit provided in the actuator motor to sense a rotation state of the motor; A second voltage divider resistor circuit for dividing the output signal of the second encoder circuit; A second comparator circuit for comparing the output signal of the second voltage divider resistor circuit with a reference voltage and outputting it as a second encoder signal; A second clamp circuit for clamping an output signal of the second voltage divider resistance circuit and outputting the second encoder fault diagnosis signal; Determine the operating state of the geometry active control system actuator by receiving the first and second encoder signals, and diagnose the short and open states of the first and second encoder circuits by receiving the first and second encoder fault diagnosis signals, respectively. Characterized in that configured to include a microcontroller.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 따른 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로의 회로도이다.1 is a circuit diagram of an encoder fault diagnosis circuit of an active geometry control system actuator according to the present invention.

상기 도 1에 도시된 바와 같이, 본 발명에 따른 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로는, 제1 및 제2엔코더회로(10, 20)와, 제1 및 제2분압저항회로(R1, R2)(R3, R4)와, 제1 및 제2비교기회로(30, 40)와, 제1 및 제2클램프회로(50, 60)와, 마이크로컨트롤러(70)를 포함하여 구성되어 있다.As shown in FIG. 1, the encoder fault diagnosis circuit of the active geometry control system actuator according to the present invention includes first and second encoder circuits 10 and 20, and first and second voltage divider resistors R1,. R2) (R3, R4), first and second comparator circuits 30 and 40, first and second clamp circuits 50 and 60, and a microcontroller 70.

상기 제1엔코더회로(10)는 액티브 지오메트리 컨트롤 시스템 액추에이터 모터에 구비되어 상기 모터의 회전상태를 감지하는 것으로, 홀집적회로소자(12)를 포함하여 구성되어 있다.The first encoder circuit 10 is provided in an active geometry control system actuator motor to sense a rotation state of the motor, and includes a hole integrated circuit device 12.

상기 제2엔코더회로(20)는 그 출력신호가 제1엔코더회로(10)의 출력신호와 90도의 위상차를 가지도록 상기 액추에이터 모터에 구비되어 상기 모터의 회전상태를 감지하는 것으로, 홀집적회로소자(22)를 포함하여 구성되어 있다.The second encoder circuit 20 is provided in the actuator motor so that the output signal has a phase difference of 90 degrees with the output signal of the first encoder circuit 10 to sense the rotation state of the motor, hole integrated circuit device It is comprised including 22.

상기 제1분압저항회로(R1, R2)는 상기 제1엔코더회로(10)의 출력신호를 분압하여 출력하도록 되어 있고, 상기 제2분압저항회로(R3, R4)는 상기 제2엔코더회로(20)의 출력신호를 분압하여 출력하도록 되어 있다.The first voltage divider resistors R1 and R2 divide the output signal of the first encoder circuit 10 and output the divided signal, and the second voltage divider resistors R3 and R4 output the second encoder circuit 20. Output signal by dividing the output signal.

상기 제1비교기회로(30)는 상기 제1분압저항회로(R1, R2)의 출력신호를 기준전압과 비교하여 제1엔코더신호로서 마이크로컨트롤러(70)에 입력하도록 되어 있는 것으로, 비교기(32)와 저항들(R5, R6, R7)을 포함하여 구성되어 있다.The first comparator circuit 30 is configured to input an output signal of the first voltage divider resistors R1 and R2 to the microcontroller 70 as a first encoder signal by comparing the output signal with the reference voltage. ) And resistors R5, R6, and R7.

상기 제2비교기회로(40)는 상기 제2분압저항회로(R3, R4)의 출력신호를 기준전압과 비교하여 제2엔코더신호로서 마이크로컨트롤러(70)에 입력하도록 되어 있는 것으로, 비교기(42)와 저항들(R8, R9, R10)을 포함하여 구성되어 있다.The second comparator circuit 40 is configured to input an output signal of the second voltage divider resistors R3 and R4 to the microcontroller 70 as a second encoder signal by comparing the output signal with the reference voltage. ) And resistors R8, R9, and R10.

상기 제1클램프회로(50)는 상기 제1분압저항회로(R1, R2)의 출력신호를 클램프시켜서 제1엔코더고장진단신호로서 마이크로컨트롤러(70)에 입력하도록 되어 있는 것으로, 제너다이오드(Z1, Z2) 및 저항(R11)을 포함하여 구성되어 있다.The first clamp circuit 50 clamps the output signals of the first divided resistor circuits R1 and R2 and inputs them to the microcontroller 70 as the first encoder fault diagnosis signal. Z2) and a resistor (R11).

상기 제2클램프회로(60)는 상기 제2분압저항회로(R3, R4)의 출력신호를 클램프시켜서 제2엔코더고장진단신호로서 마이크로컨트롤러(70)에 입력하도록 되어 있 는 것으로, 제너다이오드(Z3, Z4) 및 저항(R12)을 포함하여 구성되어 있다.The second clamp circuit 60 clamps the output signals of the second divided resistor circuits R3 and R4 and inputs them to the microcontroller 70 as a second encoder fault diagnosis signal. , Z4) and a resistor (R12).

상기 마이크로컨트롤러(70)는 상기 제1 및 제2엔코더신호를 입력받아 지오메트리 액티브 컨트롤 시스템 액추에이터의 동작상태를 판단하고 상기 제1 및 제2엔코더고장진단신호를 입력받아 제1 및 제2엔코더회로의 쇼트 및 오픈상태를 각각 진단하는 것으로, 상기 제1 및 제2엔코더고장진단신호의 전압이 5V이면 전원(Vcc)에 단락(Short)되었고, 0V이면 그라운드에 단락되었으며, 엔코더고장진단신호가 입력되지 않으면 오픈(Open)된 것으로 판단하는 것이다.The microcontroller 70 receives the first and second encoder signals to determine an operating state of a geometry active control system actuator, and receives the first and second encoder fault diagnosis signals to receive the first and second encoder circuits. By diagnosing the short and open states, if the voltage of the first and second encoder fault diagnosis signals is 5V, it is shorted to the power supply Vcc, and if it is 0V, it is shorted to ground, and the encoder fault diagnosis signal is not input. If not, it is considered to be open.

상기와 같이 구성된 본 발명에 따른 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로의 작용 및 효과를 상세히 설명하면 다음과 같다.The operation and effects of the encoder fault diagnosis circuit of the active geometry control system actuator according to the present invention configured as described above will be described in detail as follows.

액티브 지오메트리 컨트롤 시스템 액추에이터 모터가 작동함에 따라 제1엔코더회로(10)와 제2엔코더회로(20)가 이를 감지하여 출력한다. 이때, 상기 제1엔코더회로(10)와 제2엔코더회로(20)의 출력신호는 서로 90도의 위상차를 가진다.As the active geometry control system actuator motor operates, the first encoder circuit 10 and the second encoder circuit 20 detect and output the same. At this time, the output signal of the first encoder circuit 10 and the second encoder circuit 20 has a phase difference of 90 degrees with each other.

상기 제1엔코더회로(10)의 출력신호는 제1분압저항회로(R1, R2)에 의해 분압되어 출력되고, 상기 제2엔코더회로(20)의 출력신호는 제2분압저항회로(R3, R4)에 의해 분압되어 출력되는데, 정상상태에서는 1.4V의 로우레벨과 4V의 하이레벨을 가지는 구형파 신호가 출력된다.The output signal of the first encoder circuit 10 is divided and output by the first divided resistor circuits R1 and R2, and the output signal of the second encoder circuit 20 is outputted to the second divided resistor circuits R3 and R4. The voltage is divided and output, and in the normal state, a square wave signal having a low level of 1.4V and a high level of 4V is output.

그리고, 상기와 같은 제1분압저항회로(R1, R2)의 출력신호는 제1비교기회로(30)에서 기준전압과 비교된 다음 제1엔코더신호로서 마이크로컨트롤러(70)에 입력되고, 상기 제2분압저항회로(R3, R4)의 출력신호는 제2비교기회로(40)에서 기준전압과 비교된 다음 제2엔코더신호로서 마이크로컨트롤러(70)에 입력된다.In addition, the output signals of the first voltage divider resistors R1 and R2 are compared with a reference voltage in the first comparator circuit 30 and then input to the microcontroller 70 as a first encoder signal. The output signal of the two voltage divider circuits R3 and R4 is compared with the reference voltage in the second comparator circuit 40 and then input to the microcontroller 70 as a second encoder signal.

상기 마이크로컨트롤러(70)는 상기와 같이 입력된 제1 및 제2엔코더신호를 바탕으로 지오메트리 액티브 컨트롤 시스템 액추에이터의 동작상태를 판단한다.The microcontroller 70 determines the operation state of the geometry active control system actuator based on the first and second encoder signals input as described above.

또한, 상기 제1분압저항회로(R1, R2)의 출력신호는 제1클램프회로(50)에서 클램프된 다음 제1엔코더고장진단신호로서 마이크로컨트롤러(70)에 입력되고, 상기 제2분압저항회로(R3, R4)의 출력신호는 제2클램프회로(60)에서 클램프된 다음 제2엔코더고장진단신호로서 마이크로컨트롤러(70)에 입력된다.In addition, an output signal of the first voltage divider resistors R1 and R2 is clamped by the first clamp circuit 50 and then input to the microcontroller 70 as a first encoder fault diagnosis signal, and the second voltage divider resistor circuit is used. The output signals of R3 and R4 are clamped by the second clamp circuit 60 and then input to the microcontroller 70 as a second encoder failure diagnosis signal.

상기 마이크로컨트롤러(70)는 상기와 같이 입력된 제1 및 제2엔코더고장진단신호의 전압이 5V이면 전원(Vcc)에 단락(Short)되었고, 0V이면 그라운드에 단락되었으며, 엔코더고장진단신호가 입력되지 않으면 오픈(Open)된 것으로 판단한다.The microcontroller 70 is short-circuited to the power supply Vcc when the voltage of the first and second encoder fault diagnosis signals input as described above is 5V, and is short-circuited to the ground when 0V is input, and the encoder fault diagnosis signal is inputted. If not, it is considered to be open.

이상에서 설명한 바와 같이 본 발명에 따르면, 액티브 지오메트리 컨트롤 시스템의 엔코더회로와 전자제어유니트 사이의 배선 불량에 의한 고장을 진단하는 회로를 각 엔코더회로마다 별개로 구성함으로써, 어떤 엔코더회로의 신호라인이 쇼트 또는 오픈되었는지를 손쉽고 정확하게 판단할 수 있는 효과가 있다.As described above, according to the present invention, a circuit for diagnosing a failure due to a wiring failure between the encoder circuit of the active geometry control system and the electronic control unit is configured separately for each encoder circuit, so that the signal line of any encoder circuit is shorted. Or it can be determined easily and accurately whether it is open.

Claims (4)

액티브 지오메트리 컨트롤 시스템 액추에이터 모터에 구비되어 상기 모터의 회전상태를 감지하는 제1엔코더회로와; 상기 제1엔코더회로의 출력신호를 분압하는 제1분압저항회로와; 상기 제1분압저항회로의 출력신호를 기준전압과 비교하여 제1엔코더신호로서 출력하는 제1비교기회로와; 상기 제1분압저항회로의 출력신호를 클램프시켜서 제1엔코더고장진단신호로서 출력하는 제1클램프회로와; 상기 액추에이터 모터에 구비되어 상기 모터의 회전상태를 감지하는 제2엔코더회로와; 상기 제2엔코더회로의 출력신호를 분압하는 제2분압저항회로과; 상기 제2분압저항회로의 출력신호를 기준전압과 비교하여 제2엔코더신호로서 출력하는 제2비교기회로와; 상기 제2분압저항회로의 출력신호를 클램프시켜서 제2엔코더고장진단신호로서 출력하는 제2클램프회로와; 상기 제1 및 제2엔코더신호를 입력받아 지오메트리 액티브 컨트롤 시스템 액추에이터의 동작상태를 판단하고 상기 제1 및 제2엔코더고장진단신호를 입력받아 제1 및 제2엔코더회로의 쇼트 및 오픈상태를 각각 진단하는 마이크로컨트롤러를 포함하여 구성된 것을 특징으로 하는 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로.A first encoder circuit provided in an active geometry control system actuator motor for sensing a rotation state of the motor; A first voltage divider circuit for dividing the output signal of the first encoder circuit; A first comparator circuit for comparing the output signal of the first voltage divider resistance circuit with a reference voltage and outputting it as a first encoder signal; A first clamp circuit for clamping the output signal of said first voltage divider resistance circuit and outputting it as a first encoder fault diagnosis signal; A second encoder circuit provided in the actuator motor to sense a rotation state of the motor; A second voltage divider resistor circuit for dividing the output signal of the second encoder circuit; A second comparator circuit for comparing the output signal of the second voltage divider resistor circuit with a reference voltage and outputting it as a second encoder signal; A second clamp circuit for clamping an output signal of the second voltage divider resistance circuit and outputting the second encoder fault diagnosis signal; Determine the operating state of the geometry active control system actuator by receiving the first and second encoder signals, and diagnose the short and open states of the first and second encoder circuits by receiving the first and second encoder fault diagnosis signals, respectively. An encoder fault diagnosis circuit of an active geometry control system actuator, characterized in that it comprises a microcontroller. 제1 항에 있어서, 상기 마이크로컨트롤러는, 상기 제1 및 제2엔코더고장진단신호를 입력받아 이 신호의 전압이 5V이면 전원(Vcc)에 단락(Short)되었고, 0V이면 그라운드에 단락되었으며, 엔코더고장진단신호가 입력되지 않으면 오픈(Open)된 것 으로 판단하는 것을 특징으로 하는 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로.The encoder of claim 1, wherein the microcontroller receives the first and second encoder fault diagnosis signals and is shorted to the power supply Vcc when the voltage of the signal is 5V, and shorted to the ground when 0V. An encoder fault diagnosis circuit of an active geometry control system actuator, characterized in that it is judged to be open if a fault diagnosis signal is not input. 제 1 항에 있어서, 상기 제1 및 제2엔코더회로는 그 출력신호가 90도의 위상차를 가지도록 상기 액추에이터 모터에 설치되어 있는 것을 특징으로 하는 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로. 2. The encoder fault diagnosis circuit of claim 1, wherein the first and second encoder circuits are provided in the actuator motor such that their output signals have a phase difference of 90 degrees. 제 1 항에 있어서, 상기 제1 및 제2엔코더회로는, 홀집적회로소자를 포함하여 구성된 것을 특징으로 하는 액티브 지오메트리 컨트롤 시스템 액추에이터의 엔코더 고장진단회로.2. The encoder fault diagnosis circuit of claim 1, wherein the first and second encoder circuits comprise hole integrated circuit elements.
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