KR20050082016A - Circuit for driving actuator - Google Patents

Circuit for driving actuator Download PDF

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Publication number
KR20050082016A
KR20050082016A KR1020040010355A KR20040010355A KR20050082016A KR 20050082016 A KR20050082016 A KR 20050082016A KR 1020040010355 A KR1020040010355 A KR 1020040010355A KR 20040010355 A KR20040010355 A KR 20040010355A KR 20050082016 A KR20050082016 A KR 20050082016A
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South Korea
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actuator
signal
ground line
switching
signal driver
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KR1020040010355A
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Korean (ko)
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KR100808008B1 (en
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김관식
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주식회사 만도
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/145—Means for vehicle stopping using impact energy absorbers
    • E01F15/146—Means for vehicle stopping using impact energy absorbers fixed arrangements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electronic Switches (AREA)
  • Regulating Braking Force (AREA)

Abstract

본 발명은 액츄에이터 구동회로에 관한 것으로, 특히 본 발명은 액츄에이터로 공급되는 배터리전원을 스위칭하는 스위칭소자를 구동시키는 신호드라이버의 신호접지선이 단선되더라도 스위칭소자와 액츄에이터가 오동작하거나 소손되는 것을 방지하기 위한 액츄에이터 구동회로에 관한 것이다.The present invention relates to an actuator driving circuit, and in particular, the present invention relates to an actuator for preventing the switching element and the actuator from malfunctioning or being burned even if the signal ground line of the signal driver for driving the switching element for switching the battery power supplied to the actuator is disconnected. It relates to a driving circuit.

이를 위해 본 발명은 전원접지된 액츄에이터, 상기 액츄에이터에 공급되는 전원을 스위칭하는 스위칭부, 신호접지되고 상기 스위칭부를 구동시키는 신호드라이버, 상기 액츄에이터에 접속된 전원접지선과 상기 신호드라이버에 접속된 신호접지선을 연결하는 연결선, 신호접지선의 단선시 상기 신호드라이버가 전원접지되도록 상기 연결선에 마련되는 바이패스부를 포함한다.To this end, the present invention provides a power grounded actuator, a switching unit for switching the power supplied to the actuator, a signal grounded signal driver for driving the switching unit, a power ground line connected to the actuator and a signal ground line connected to the signal driver And a bypass portion provided at the connection line to connect the signal line and the signal driver to ground the power when the signal ground line is disconnected.

따라서, 본 발명은 액츄에이터로 공급되는 배터리전원을 스위칭하는 스위칭소자를 구동시키는 신호드라이버의 신호접지선의 단선시에도 스위칭소자와 액츄에이터가 오동작하거나 소손되는 것을 방지할 수 있는 장점이 있다.Therefore, the present invention has an advantage of preventing the switching device and the actuator from malfunctioning or burning even when the signal ground line of the signal driver for driving the switching device for switching the battery power supplied to the actuator is disconnected.

Description

액츄에이터 구동회로{Circuit for driving actuator}Actuator driving circuit {Circuit for driving actuator}

본 발명은 액츄에이터 구동회로에 관한 것으로, 보다 상세하게는 안티록 브레이크 시스템(Antilock Brake System ; ABS) 내에 장착된 모터 등의 액츄에이터를 구동시키는 액츄에이터 구동회로에 관한 것이다.The present invention relates to an actuator drive circuit, and more particularly, to an actuator drive circuit for driving an actuator such as a motor mounted in an antilock brake system (ABS).

일반적으로, 안티록 브레이크 시스템(anti-lock brake system ; 이하 ABS라 칭함)을 장착한 차량에서는 각 차륜의 휠 실린더에 가해지는 브레이크 액압을 감압, 유지 또는 증압하여 브레이크 성능을 향상시키면서도 조향을 안정적으로 유지시킨다.In general, a vehicle equipped with an anti-lock brake system (hereinafter referred to as ABS) may reduce, maintain, or increase the brake hydraulic pressure applied to the wheel cylinders of each wheel, thereby improving steering performance and improving steering performance. Keep it.

이러한 안티록 브레이크 시스템에서는 각 휠 실린더의 유입 또는 유출측의 유압선 상에 각 휠 실린더에서의 브레이크 액압을 조절할 수 있도록 솔레노이드 밸브들과 각 휠 실린더로 브레이크액을 펌핑하여 공급하기 위한 모터 등과 같은 액츄에이터가 설치되어 있다.In such an anti-lock brake system, actuators such as solenoid valves and motors for pumping and supplying brake fluid to each wheel cylinder to adjust brake fluid pressure at each wheel cylinder on the hydraulic line on the inflow or outflow side of each wheel cylinder. Is installed.

종래의 액츄에이터 구동장치는 도 1과 같이, 액츄에이터(1), 배터리전원을 스위칭하기 위한 스위칭소자(FET)(2), 이 스위칭소자(2)를 구동시키는 신호드라이버(3), 이 신호드라이버(3)를 제어하는 전자제어유닛(Electronic Control Unit ; 이하 ECU 라 칭함)(4)을 포함한다.The conventional actuator driving apparatus includes an actuator 1, a switching element (FET) 2 for switching battery power, a signal driver 3 for driving the switching element 2, and the signal driver ( And an electronic control unit (hereinafter referred to as ECU) 4 for controlling 3).

그리고, 전원접지(power GND)의 노이즈성분이 신호드라이버(3)에 영향을 주지 않도록 신호드라이버(3)는 전원접지선(6)과 독립적으로 분리된 신호접지선(5)에 연결되어 있고, 액츄에이터(1)는 전원접지선(6)에 연결되어 있다.In addition, the signal driver 3 is connected to the signal ground line 5 independently of the power ground line 6 so that the noise component of the power ground does not affect the signal driver 3, and the actuator ( 1) is connected to the power grounding line 6.

그러나, 만약, 액츄에이터(3)가 여전히 전원접지된 상태에서 신호드라이버(3)의 신호접지라인이 단선(open)된 경우에는 단선된 신호접지선(5)에 정의되지 않는 전압이 발생하고, 이 전압에 의해 신호드라이버(3)가 온도 오프도 아닌 시츄에이션(Satuation)영역에 빠진다. 이로 인해, 신호드라이버(3)에 의해 구동되는 스위칭소자(2)를 비롯한 액츄에이터(1)가 오동작하거나 심한 경우에는 소손될 수 있는 문제점이 있다.However, if the signal ground line of the signal driver 3 is open when the actuator 3 is still grounded, an undefined voltage is generated at the disconnected signal ground line 5, and this voltage is generated. This causes the signal driver 3 to fall into the Saturation region, which is neither temperature off. For this reason, there is a problem that the actuator 1 including the switching element 2 driven by the signal driver 3 may be damaged in case of malfunction or severeness.

본 발명은 전술한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 액츄에이터로 공급되는 배터리전원을 스위칭하는 스위칭소자를 구동시키는 신호드라이버의 신호접지선이 단선되더라도 스위칭소자와 액츄에이터가 오동작하거나 소손되는 것을 방지하기 위한 액츄에이터 구동회로를 제공한다.The present invention is to solve the above problems, an object of the present invention is to prevent the switching device and the actuator from malfunction or burnout even if the signal ground line of the signal driver for driving the switching device for switching the battery power supplied to the actuator is disconnected An actuator driving circuit is provided.

전술한 목적을 달성하기 위한 본 발명의 액츄에이터 구동회로는 전원접지된 액츄에이터, 상기 액츄에이터에 공급되는 전원을 스위칭하는 스위칭부, 신호접지되고 상기 스위칭부를 구동시키는 신호드라이버, 상기 액츄에이터에 접속된 전원접지선과 상기 신호드라이버에 접속된 신호접지선을 연결하는 연결선, 신호접지선의 단선시 상기 신호드라이버가 전원접지되도록 상기 연결선에 마련되는 바이패스부를 포함한다.The actuator driving circuit of the present invention for achieving the above object is a power grounded actuator, a switching unit for switching the power supplied to the actuator, a signal driver for signal ground and driving the switching unit, and a power ground line connected to the actuator A connection line connecting the signal ground line connected to the signal driver, and a bypass part provided on the connection line so that the signal driver is grounded when the signal ground line is disconnected.

상기 바이패스부는 다이오드를 포함하고, 상기 다이오드의 애노드는 상기 신호접지선측에 접속되고, 캐소드는 상기 전원접지선측에 접속되는 것을 특징으로 한다.The bypass portion includes a diode, wherein an anode of the diode is connected to the signal ground line side, and a cathode is connected to the power ground line side.

상기 액츄에이터는 직류모터인 것을 특징으로 한다.The actuator is characterized in that the DC motor.

이하에서는 본 발명의 바람직한 실시예를 본 도면을 참조하여 상세하게 설명하도록 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 2는 본 발명에 따른 액츄에이터 구동회로도이다. 도 2에 도시된 바와 같이, 본 발명에 따른 액츄에이터 구동장치는 액츄에이터(10), 배터리전원을 스위칭하는 스위칭부(20), 이 스위칭부(20)를 구동시키는 신호드라이버(30), 이 신호드라이버(30)를 제어하는 전자제어유닛(Electronic Control Unit ; 이하 ECU 라 칭함)(40), 바이패스부(70)를 포함한다.2 is an actuator driving circuit diagram according to the present invention. As shown in FIG. 2, the actuator driving apparatus according to the present invention includes an actuator 10, a switching unit 20 for switching battery power, a signal driver 30 for driving the switching unit 20, and a signal driver An electronic control unit (hereinafter referred to as ECU) 40 for controlling the 30 and a bypass unit 70 are included.

액츄에이터(10)는 안티록 브레이크 시스템에 설치되고, 각 휠 실린더의 유입 또는 유출측의 유압선 상에 각 휠 실린더에서의 브레이크 액압을 조절하는 솔레노이드 밸브들과 각 휠 실린더로 브레이크액을 펌핑하여 공급하는 직류모터를 포함한다.The actuator 10 is installed in the anti-lock brake system, and pumps brake fluid to each wheel cylinder and solenoid valves for adjusting the brake fluid pressure at each wheel cylinder on the hydraulic line on the inflow or outflow side of each wheel cylinder. It includes a DC motor.

스위칭부(20)는 전계효과 트랜지스터(Field-Effect Transistor ; 이하 FET 라 칭함)을 포함한다.The switching unit 20 includes a field-effect transistor (hereinafter, referred to as a FET).

신호드라이버(30)는 트랜지스터(Transistor)를 포함하고, 이 트랜지스터의 온 또는 오프에 따라 스위칭부(20)를 구동시킨다.The signal driver 30 includes a transistor, and drives the switching unit 20 according to on or off of the transistor.

그리고, 전원접지(power GND)의 노이즈성분이 신호드라이버(30)에 영향을 주지 않도록, 신호드라이버(30)는 전원접지선과 독립적으로 분리된 신호접지선(50)에 접속되고, 액츄에이터(10)는 전원접지선(60)에 접속된다.The signal driver 30 is connected to the signal ground line 50 independently of the power ground line, so that the noise component of the power ground does not affect the signal driver 30, and the actuator 10 It is connected to the power supply ground wire 60.

이 신호접지선(50)과 전원접지선(60)은 전기신호를 전송하는 연결선(70)에 의해 서로 연결되어 있다.The signal ground line 50 and the power ground line 60 are connected to each other by a connection line 70 for transmitting an electrical signal.

신호접지선의 단선시 신호드라이버(30)가 전원접지되도록 이 연결선(70)에는 바이패스부(71)가 마련된다. 이 바이패스부(71)는 다이오드(D1)를 포함하고, 전류의 흐름이 신호드라이버(30)에서 전원접지(power GND)측으로만 형성되도록 다이오드(D1)의 애노드(A)는 신호접지선(5)측에 접속되고, 캐소드(C)는 전원접지선(6)측에 접속된다.The bypass part 71 is provided on the connection line 70 so that the signal driver 30 is grounded when the signal ground line is disconnected. The bypass portion 71 includes a diode D1, and the anode A of the diode D1 is connected to the signal ground line 5 so that current flows only from the signal driver 30 to the power ground side. Is connected to the C) side, and the cathode C is connected to the power supply ground line 6 side.

도 2의 작동을 살펴보면, 신호드라이버(30)가 정상적으로 신호접지되고, 액츄에이터(10)가 정상적으로 전원접지된 경우에는 신호드라이버(30), 스위칭부(20), 액츄에이터(10)가 정상 작동할 뿐만 아니라, 전원접지단(power GND)측의 노이즈는 바이패스부(71)를 통과하지 못하므로 신호드라이버(30)는 전원접지선(60)의 노이즈성분에 의해 영향받지 않는다.Referring to the operation of FIG. 2, when the signal driver 30 is normally signal grounded and the actuator 10 is normally grounded, the signal driver 30, the switching unit 20, and the actuator 10 normally operate normally. In addition, since the noise of the power ground terminal (power GND) side does not pass through the bypass unit 71, the signal driver 30 is not affected by the noise component of the power ground line 60.

이때, 신호드라이버(30)의 신호접지선(5)이 단선되더라도 신호드라이버(30)는 연결선(70)과 바이패스부(71)를 통해 전원접지되기 때문에 신호접지선의 단선에 의한 이상전압에 의해 신호드라이버(30)가 영향받지 않는다. 즉, 전원접지에 의해서 바이패스부(71)의 다이오드 드럽(Drop)이상 상승하지 않기 때문에 스위칭부(20)의 FET를 턴 온할 수 없으므로 스위칭부(20)와 액츄에이터(10)가 오동작하거나 소손될 염려가 없다. 또한, 전원접지단측의 노이즈는 바이패스부(71)를 통과하지 못하므로 신호드라이버(30)는 전원접지선의 노이즈성분에 의해 영향받지 않는다.At this time, even if the signal ground line 5 of the signal driver 30 is disconnected, since the signal driver 30 is grounded through the connection line 70 and the bypass unit 71, the signal is disconnected by an abnormal voltage caused by the disconnection of the signal ground line. The driver 30 is not affected. That is, since the FET of the switching unit 20 cannot be turned on because the diode drop of the bypass unit 71 does not rise by the power ground, the switching unit 20 and the actuator 10 may malfunction or burn out. There is no concern. In addition, since the noise of the power supply ground side does not pass the bypass unit 71, the signal driver 30 is not affected by the noise component of the power supply ground line.

이상에서 상세히 설명한 바와 같이, 본 발명은 액츄에이터로 공급되는 배터리전원을 스위칭하는 스위칭소자를 구동시키는 신호드라이버의 신호접지선의 단선시에도 스위칭소자와 액츄에이터가 오동작하거나 소손되는 것을 방지할 수 있는 효과가 있다.As described above in detail, the present invention has an effect of preventing the switching device and the actuator from malfunctioning or burning even when the signal ground line of the signal driver for driving the switching device for switching the battery power supplied to the actuator is disconnected. .

또한, 본 발명은 신호드라이버의 신호접지선이 단선되더라도 전원접지의 노이즈성분에 의해 신호드라이버가 영향받지 않도록 할 수 있다.In addition, the present invention can prevent the signal driver from being affected by the noise component of the power supply ground even if the signal ground line of the signal driver is disconnected.

도 1은 종래의 액츄에이터 구동회로도이다.1 is a conventional actuator driving circuit diagram.

도 2는 본 발명에 따른 액츄에이터 구동회로도이다.2 is an actuator driving circuit diagram according to the present invention.

*도면의 주요 기능에 대한 부호의 설명** Description of the code for the main functions of the drawings

10 : 액츄에이터 20 : 스위칭부10: actuator 20: switching unit

30 : 신호드라이버 40 : ECU30: signal driver 40: ECU

50 : 신호접지선 60 : 전원접지선50: signal ground line 60: power ground line

70 : 연결선 71 : 바이패스부70: connecting line 71: bypass unit

Claims (4)

전원접지된 액츄에이터,Power grounded actuator, 상기 액츄에이터에 공급되는 전원을 스위칭하는 스위칭부,Switching unit for switching the power supplied to the actuator, 신호접지되고, 상기 스위칭부를 구동시키는 신호드라이버,A signal driver grounded and driving the switching unit; 상기 액츄에이터에 접속된 전원접지선과 상기 신호드라이버에 접속된 신호접지선을 연결하는 연결선,A connection line connecting the power ground line connected to the actuator and the signal ground line connected to the signal driver, 신호접지선의 단선시 상기 신호드라이버가 전원접지되도록 상기 연결선에 마련되는 바이패스부를 포함하는 액츄에이터 구동회로.And a bypass unit provided on the connection line such that the signal driver is grounded when the signal ground line is disconnected. 제1항에 있어서, 상기 바이패스부는 다이오드를 포함하고, 상기 다이오드의 애노드는 상기 신호접지선측에 접속되고, 캐소드는 상기 전원접지선측에 접속되는 것을 특징으로 하는 액츄에이터 구동회로.2. The actuator driving circuit according to claim 1, wherein the bypass portion includes a diode, an anode of the diode is connected to the signal ground line side, and a cathode is connected to the power ground line side. 제1항에 있어서, 상기 액츄에이터는 직류모터인 것을 특징으로 하는 액츄에이터 구동회로.2. The actuator driving circuit of claim 1, wherein the actuator is a direct current motor. 제1항에 있어서, 상기 액츄에이터 구동회로를 갖는 안티록 브레이크 시스템.2. An antilock brake system according to claim 1 having said actuator drive circuit.
KR1020040010355A 2004-02-17 2004-02-17 Circuit for driving actuator KR100808008B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101021512B1 (en) * 2005-12-07 2011-03-16 주식회사 만도 Device for driving motor in a electronic brake system
KR101038212B1 (en) * 2005-12-08 2011-06-01 주식회사 만도 Device for driving actuator
KR101143259B1 (en) * 2006-09-12 2012-05-11 주식회사 만도 Electronic control unit for a vehicle
KR101144670B1 (en) * 2006-09-06 2012-05-25 주식회사 만도 Motor driving device for electronic brake system
CN109643951A (en) * 2016-09-12 2019-04-16 黑拉有限责任两合公司 Equipment for running DC voltage converter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100799482B1 (en) * 2002-05-13 2008-01-31 주식회사 만도 Control device for DC motor of vehicle ABS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101021512B1 (en) * 2005-12-07 2011-03-16 주식회사 만도 Device for driving motor in a electronic brake system
KR101038212B1 (en) * 2005-12-08 2011-06-01 주식회사 만도 Device for driving actuator
KR101144670B1 (en) * 2006-09-06 2012-05-25 주식회사 만도 Motor driving device for electronic brake system
KR101143259B1 (en) * 2006-09-12 2012-05-11 주식회사 만도 Electronic control unit for a vehicle
CN109643951A (en) * 2016-09-12 2019-04-16 黑拉有限责任两合公司 Equipment for running DC voltage converter

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