KR20070060486A - Device for driving actuator - Google Patents

Device for driving actuator Download PDF

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KR20070060486A
KR20070060486A KR1020050119965A KR20050119965A KR20070060486A KR 20070060486 A KR20070060486 A KR 20070060486A KR 1020050119965 A KR1020050119965 A KR 1020050119965A KR 20050119965 A KR20050119965 A KR 20050119965A KR 20070060486 A KR20070060486 A KR 20070060486A
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South Korea
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switching element
charge pump
switching
ground line
signal ground
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KR1020050119965A
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Korean (ko)
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KR101038212B1 (en
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이현철
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주식회사 만도
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/48—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F2007/062—Details of terminals or connectors for electromagnets

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electronic Switches (AREA)

Abstract

An actuator drive device is provided to prevent malfunction of an actuator by interrupting abnormal output of a signal driver when a signal ground line of the signal driver is short circuited. A first switching device(41) switches a battery voltage(BAT1) applied to a solenoid coil(50), and a second switching device(42) switches a battery voltage applied to a motor(51). A charge pump IC(43) provides a voltage in proportion to an input pulse to drive the first and second switching devices. A third switching device(45) is driven by a voltage generated when a signal ground line(60) of the voltage pump IC is short circuited, to turn off the first switching device. A fourth switching device(46) is driven by a voltage generated when a signal ground line(60) of the voltage pump IC is short circuited, to turn off the second switching device.

Description

액츄에이터 구동장치 {DEVICE FOR DRIVING ACTUATOR}Actuator Drive {DEVICE FOR DRIVING ACTUATOR}

도 1은 종래 액츄에이터 구동장치의 제어블록도이다.1 is a control block diagram of a conventional actuator driving device.

도 2는 본 발명의 실시예에 따른 액츄에이터 구동장치의 제어블록도이다.2 is a control block diagram of an actuator driving apparatus according to an embodiment of the present invention.

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

40 : ECU 41 : 제1스위칭소자40: ECU 41: first switching element

42 : 제2스위칭소자 43 : 전하펌프 IC42: second switching element 43: charge pump IC

44 : 마이컴 45 : 제3스위칭소자44: microcomputer 45: third switching element

46 : 제4스위칭소자 47 : 전류제한소자46: fourth switching device 47: current limiting device

50 : 솔레노이드코일 51 : 모터50: solenoid coil 51: motor

60 : 신호접지선 61 : 전원접지선60: signal ground line 61: power ground line

70 : 역전압방지소자70: reverse voltage protection device

본 발명은 액츄에이터 구동장치에 관한 것으로, 더욱 상세하게는 전자제어유닛의 오동작을 방지할 수 있는 액츄에이터 구동장치에 관한 것이다.The present invention relates to an actuator drive device, and more particularly, to an actuator drive device that can prevent malfunction of the electronic control unit.

일반적으로, 전자 브레이크 시스템 일예로, 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, in an example of an electronic brake system, 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 cylinder of each wheel to improve brake performance. It keeps steering stable while improving.

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 1에 도시된 바와 같이, 전반적인 제어를 수행하는 전자제어유닛(10)(Electronic Control Unit ; 이하 ECU 라 칭함)과, ECU(10)의 제어신호에 따라 작동하는 액츄에이터로서의 모터(20)를 구비한다. 이 전자제어유닛(10) 내에는 모터(20)에 인가되는 배터리전압을 스위칭하기 위한 스위칭소자(11)(FET)와, 이 스위칭소자들을 구동시키는 신호드라이버로서의 전하펌프(charge pump) IC(12)와, 이 전하펌프 IC(12)를 제어하는 마이컴(13)을 구비한다.As shown in FIG. 1, a conventional actuator driving apparatus is an electronic control unit 10 (hereinafter referred to as ECU) which performs overall control, and acts as an actuator operating according to a control signal of the ECU 10. As shown in FIG. The motor 20 is provided. In this electronic control unit 10, a switching element 11 (FET) for switching the battery voltage applied to the motor 20, and a charge pump IC 12 as a signal driver for driving the switching elements. ) And a microcomputer 13 for controlling the charge pump IC 12.

그리고, 전원접지(power GND ; PGND)의 노이즈성분이 전하펌프 IC(12)에 영향을 주지 않도록 전하펌프 IC(12)는 전원접지선(31)과 독립적으로 분리된 신호접지선(30)(signal GND ; SGND)에 연결되어 있고, 모터(20)는 전원접지선(31)에 연결되어 있다.In addition, the charge pump IC 12 has a signal ground line 30 separated from the power ground line 31 so that the noise component of the power ground PGND does not affect the charge pump IC 12. SGND), and the motor 20 is connected to the power ground line 31.

그러나, 전하펌프 IC(12)의 신호접지선(30)이 단선(open)된 경우, 단선된 신호접지선(30)에 정의되지 않는 전압이 발생하고, 이 전압에 의해 전하펌프 IC(12) 가 온도 오프도 아닌 시츄에이션(Satuation)영역에 빠지게 된다. 이때, 전하펌프 IC(12)의 Vbat는 이그니션(IGN)전원이 연결되어 있으므로, 전하펌프 IC(12)의 출력전압이 Vbat의 2/3 정도의 전압을 유지하게 된다. 이로 인해, 계속적으로 모터(20)를 구동하기 때문에 전하펌프 IC(12)에 의해 구동되는 스위칭소자를 비롯한 모터(20)가 오동작하거나 심한 경우에는 모터(20) 및 ECU(10)가 소손될 수 있는 문제점이 있다.However, when the signal ground line 30 of the charge pump IC 12 is open, an undefined voltage is generated at the disconnected signal ground line 30, which causes the charge pump IC 12 to heat up. It falls in the situation area that is not off. At this time, since the Vbat of the charge pump IC 12 is connected to the ignition (IGN) power source, the output voltage of the charge pump IC 12 maintains about 2/3 of the voltage of Vbat. As a result, since the motor 20 is continuously driven, the motor 20 and the ECU 10 may be damaged when the motor 20 including the switching element driven by the charge pump IC 12 malfunctions or is severe. There is a problem.

본 발명은 전술한 문제점을 해결하기 위한 것으로, 본 발명의 목적은 신호드라이버의 신호접지선의 단선시 신호드라이버의 비정상적인 출력을 차단시켜 액츄에이터의 오동작 및 소손을 방지할 수 있는 액츄에이터 구동장치를 제공하는 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an actuator driving device which can prevent abnormal operation and burnout of the actuator by blocking abnormal output of the signal driver when the signal ground line of the signal driver is disconnected. .

전술한 목적을 달성하기 위한 본 발명의 액츄에이터 구동장치는 솔레노이드코일을 갖는 솔레노이드 밸브와 모터를 구동시키는 액츄에이터 구동장치에 있어서, 상기 솔레노이드코일에 인가되는 배터리전압을 스위칭하는 제1스위칭소자와, 상기 모터에 인가되는 배터리전압을 스위칭하는 제2스위칭소자와, 입력펄스에 비례하는 전압을 제공하여 상기 제1스위칭소자와 제2스위칭소자를 구동시키는 전하펌프 IC와,An actuator driving apparatus of the present invention for achieving the above object is a solenoid valve having a solenoid coil and an actuator driving apparatus for driving a motor, the first switching element for switching the battery voltage applied to the solenoid coil, the motor A second switching device for switching a battery voltage applied to the charge pump, a charge pump IC for driving the first switching device and the second switching device by providing a voltage proportional to an input pulse;

상기 전하펌프 IC의 신호접지선의 단선시 발생하는 전압에 의해 작동하여 상기 제1스위칭소자를 오프시키는 제3스위칭소자와, 상기 전하펌프 IC의 신호접지선의 단선시 발생하는 전압에 의해 작동하여 상기 제2스위칭소자를 오프시키는 제4스 위칭소자와, 상기 전하펌프 IC를 제어하는 마이컴을 포함하는 것이 바람직하다.A third switching element operating by a voltage generated when the signal ground line of the charge pump IC is disconnected to turn off the first switching element, and operating by a voltage generated when the signal ground line of the charge pump IC is disconnected. It is preferable to include the 4th switching element which turns off a switching element, and the microcomputer which controls the said charge pump IC.

상기 제3스위칭소자는 쌍극성 접합 트랜지스터이며, 상기 쌍극성 접합 트랜지스터의 베이스단은 상기 전하펌프 IC의 신호접지단에 연결되고, 컬렉터단은 상기 제1스위칭소자의 게이트단에 연결되고, 이미터단은 상기 제1스위칭소자의 소스단에 연결되는 것이 바람직하다.The third switching element is a bipolar junction transistor, a base end of the bipolar junction transistor is connected to a signal ground end of the charge pump IC, a collector end is connected to a gate end of the first switching element, and an emitter end Is preferably connected to the source terminal of the first switching element.

상기 제4스위칭소자는 쌍극성 접합 트랜지스터이며, 상기 쌍극성 접합 트랜지스터의 베이스단은 상기 전하펌프 IC의 신호접지단에 연결되고, 컬렉터단은 상기 제2스위칭소자의 게이트단에 연결되고, 이미터단은 상기 제2스위칭소자의 소스단에 연결되는 것이 바람직하다.The fourth switching element is a bipolar junction transistor, a base end of the bipolar junction transistor is connected to a signal ground end of the charge pump IC, a collector end is connected to a gate end of the second switching element, and an emitter end. Is preferably connected to the source terminal of the second switching element.

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.

본 발명의 실시예에 따른 액츄에이터 구동장치는 도 2에 도시된 바와 같이, 전반적인 제어를 수행하는 ECU(40)와, 솔레노이드 밸브 내의 솔레노이드 코일(L)(50)과 모터(M)(51) 등의 액츄에이터를 구비한다.As shown in FIG. 2, the actuator driving apparatus according to the embodiment of the present invention includes an ECU 40 which performs overall control, a solenoid coil (L) 50 and a motor (M) 51 in the solenoid valve. An actuator is provided.

이 ECU(40) 내에는 솔레노이드 코일(50)에 인가되는 배터리전압(BAT1)을 스위칭하기 위한 제1스위칭소자(FET1)(41)와, 모터(51)에 인가되는 배터리전압(BAT2)을 스위칭하기 위한 제2스위칭소자(FET2)(42)와, 이 두개의 스위칭소자(41, 42)을 구동시키는 신호드라이버으로서의 전하펌프 IC(43)와, 이 전하펌프 IC(43)를 제어하는 마이컴(44)을 구비한다.The ECU 40 switches the first switching element FET1 41 for switching the battery voltage BAT1 applied to the solenoid coil 50 and the battery voltage BAT2 applied to the motor 51. A second switching element (FET2) 42, a charge pump IC 43 as a signal driver for driving the two switching elements 41 and 42, and a microcomputer that controls the charge pump IC 43. 44).

상기한 전하펌프 IC(43)는 마이컴(44)의 제어신호에 따른 입력펄스에 비례하 는 전압을 제공하여 제1스위칭소자(41)와 제2스위칭소자(42)를 온 또는 오프시키는 역할을 수행한다.The charge pump IC 43 serves to turn on or off the first switching element 41 and the second switching element 42 by providing a voltage proportional to an input pulse according to the control signal of the microcomputer 44. To perform.

상기한 제1스위칭소자(41)와 제2스위칭소자(42)는 전계 효과 트랜지스터(Field-Effect Transistor ; FET)이다.The first switching element 41 and the second switching element 42 are field-effect transistors (FETs).

한편, 전하펌프 IC(43)과 솔레노이드 코일(50)은 전원접지선(61)(Power GND ; PGND)과 독립적으로 분리된 신호접지선(60)(Signal GND ; SGND)에 연결되어 있고, 모터(51)는 전원접지선(61)에 연결되어 있다.Meanwhile, the charge pump IC 43 and the solenoid coil 50 are connected to a signal ground line 60 (Signal GND; SGND) separated from the power ground line 61 (Power GND; PGND). ) Is connected to the power ground line 61.

상술한 바와 같이, 전하펌프 IC(43)의 신호접지선(60)이 단선(open)된 경우에는 단선된 신호접지선(60)에 정의되지 않는 전압이 발생하고, 이 전압에 의해 전하펌프 IC(43)가 온도 오프도 아닌 시츄에이션(Satuation)영역에 빠지게 된다. 이때, 전하펌프 IC(43)의 Vbat는 이그니션(IGN)전원이 연결되어 있으므로, 전하펌프 IC(43)의 출력전압은 Vbat의 2/3 정도의 전압을 유지하게 된다. 이로 인해, 계속적으로 모터(51)를 구동하기 때문에 전하펌프 IC(43)에 의해 구동되는 제1스위칭소자(41)와 제2스위칭소자(42)를 비롯한 솔레노이드 밸브와 모터(51) 등의 액츄에이터가 오동작하거나 심한 경우에는 솔레노이드 밸브, 모터(51) 및 ECU(40)가 소손될 우려가 있다.As described above, when the signal ground line 60 of the charge pump IC 43 is open, an undefined voltage is generated at the disconnected signal ground line 60, and the voltage of the charge pump IC 43 is generated by this voltage. ) Falls into the Saturation region, which is neither temperature off. At this time, since the Vbat of the charge pump IC 43 is connected to the ignition (IGN) power source, the output voltage of the charge pump IC 43 maintains about 2/3 of the voltage of Vbat. For this reason, since the motor 51 is continuously driven, solenoid valves, such as the 1st switching element 41 and the 2nd switching element 42 which are driven by the charge pump IC 43, actuators, such as the motor 51, etc. In case of malfunction or severe operation, the solenoid valve, the motor 51 and the ECU 40 may be damaged.

따라서, 본 발명에서는 이를 위해 도 2와 같이, 전하펌프 IC(43)의 신호접지선(60)의 단선시 발생하는 전압에 의해 작동하여 제1스위칭소자(41)를 오프시키는 제3스위칭소자(45)와, 전하펌프 IC(43)의 신호접지선(60)의 단선시 발생하는 전압에 의해 작동하여 제2스위칭소자(42)를 오프시키는 제4스위칭소자(46)를 구비한다.Accordingly, in the present invention, as shown in FIG. 2, the third switching device 45 is operated by a voltage generated when the signal ground line 60 of the charge pump IC 43 is disconnected to turn off the first switching device 41. And a fourth switching element 46 which is operated by a voltage generated when the signal ground line 60 of the charge pump IC 43 is disconnected to turn off the second switching element 42.

상기한 제3스위칭소자(45)는 쌍극성 접합 트랜지스터(Bipolar Junction Transistor ; BJT)이며, 이 쌍극성 접합 트랜지스터(BJT)의 베이스단은 전하펌프 IC(43)의 신호접지선(60)에 연결되고, 컬렉터단은 제1스위칭소자(41)의 게이트단에 연결되고, 이미터단은 제1스위칭소자(41)의 소스단에 연결된다.The third switching element 45 is a bipolar junction transistor (BJT), and the base end of the bipolar junction transistor (BJT) is connected to the signal ground line 60 of the charge pump IC 43. The collector end is connected to the gate end of the first switching element 41 and the emitter end is connected to the source end of the first switching element 41.

또한, 상기 제4스위칭소자(46)는 쌍극성 접합 트랜지스터(BJT)이며, 이 쌍극성 접합 트랜지스터(BJT)의 베이스단은 전하펌프 IC(43)의 신호접지선(60)에 연결되고, 컬렉터단은 제2스위칭소자(42)의 게이트단에 연결되고, 이미터단은 제2스위칭소자(42)의 소스단에 연결된다. 이에 따라, 전하펌프 IC(43)의 신호접지선(60)의 단선시 발생된 전류에 의해 제3스위칭소자(46) 및 제4스위칭소자(45)가 온 되고, 이에 따라 제1스위칭소자(41)와 제2스위칭소자(42)를 오프시킴으로서 솔레노이드 밸브와 모터(51)의 오동작 및 소손을 방지하게 된다.In addition, the fourth switching device 46 is a bipolar junction transistor (BJT), the base end of the bipolar junction transistor (BJT) is connected to the signal ground line 60 of the charge pump IC 43, the collector end Is connected to the gate end of the second switching element 42, and the emitter end is connected to the source end of the second switching element 42. Accordingly, the third switching device 46 and the fourth switching device 45 are turned on by the current generated when the signal grounding line 60 of the charge pump IC 43 is disconnected, and thus the first switching device 41 is turned on. ) And the second switching element 42 are turned off to prevent malfunction and burnout of the solenoid valve and the motor 51.

한편, 전하펌프 IC(43)의 신호접지선(60)의 단선시 발생된 전류에 의해 제3스위칭소자(46) 및 제4스위칭소자(45)가 손상될 수 있기 때문에 전하펌프 IC(43)의 신호접지선(60)과 제3스위칭소자(45)의 베이스단 및 제4스위칭소자(46)의 베이스단사이에 전류를 제한시키는 전류제한소자(47)를 연결한다.On the other hand, since the third switching element 46 and the fourth switching element 45 may be damaged by the current generated when the signal ground line 60 of the charge pump IC 43 is disconnected, the charge pump IC 43 may be damaged. A current limiting element 47 for limiting current is connected between the signal ground line 60 and the base end of the third switching element 45 and the base end of the fourth switching element 46.

이상에서 상세히 설명한 바와 같이, 본 발명은 전하펌프 IC의 신호접지선의 전압레벨에 따라 작동하여 솔레노이드 코일과 모터 등의 액츄에이터에 인가되는 각각의 배터리전압을 스위칭하는 스위칭소자를 오프시킬 수 있는 스위칭소자를 각각 마련하고, 전하펌프 IC의 신호접지선의 전압레벨이 미리 설정된 수준이상으로 상승 하면, 상승된 전압에 의해 각각의 스위칭소자를 오프시킴으로서 전하펌프 IC의 비정상적인 출력을 차단시킬 수 있어 솔레노이드 밸브와 모터의 오동작 및 소손을 방지할 수 있는 효과가 있다.As described in detail above, the present invention provides a switching device capable of turning off the switching device for switching each battery voltage applied to an actuator such as a solenoid coil and a motor by operating according to the voltage level of the signal ground line of the charge pump IC. When the voltage level of the signal ground line of the charge pump IC rises above the predetermined level, the respective switching elements are turned off by the increased voltage to cut off the abnormal output of the charge pump IC. There is an effect that can prevent malfunction and burnout.

또한, 본 발명은 별도의 고장감지회로 없이 단순히 쌍극성 접합 트랜지스터(BJT)와 전계효과 트랜지스터(FET)의 특성을 이용하여 전하펌프 IC의 비정상적인 출력을 차단하는 장치를 간단하게 구현할 수 있는 효과가 있다.In addition, the present invention can easily implement an apparatus for blocking abnormal output of the charge pump IC by simply using the characteristics of the bipolar junction transistor (BJT) and the field effect transistor (FET) without a separate fault detection circuit. .

Claims (3)

솔레노이드코일을 갖는 솔레노이드 밸브와 모터를 구동시키는 액츄에이터 구동장치에 있어서,In the actuator drive device for driving a solenoid valve and a motor having a solenoid coil, 상기 솔레노이드코일에 인가되는 배터리전압을 스위칭하는 제1스위칭소자와,A first switching element for switching a battery voltage applied to the solenoid coil; 상기 모터에 인가되는 배터리전압을 스위칭하는 제2스위칭소자와,A second switching element for switching a battery voltage applied to the motor; 입력펄스에 비례하는 전압을 제공하여 상기 제1스위칭소자와 제2스위칭소자를 구동시키는 전하펌프 IC와,A charge pump IC providing a voltage proportional to an input pulse to drive the first switching element and the second switching element; 상기 전하펌프 IC의 신호접지선의 단선시 발생하는 전압에 의해 작동하여 상기 제1스위칭소자를 오프시키는 제3스위칭소자와,A third switching element operating by a voltage generated when the signal ground line of the charge pump IC is disconnected to turn off the first switching element; 상기 전하펌프 IC의 신호접지선의 단선시 발생하는 전압에 의해 작동하여 상기 제2스위칭소자를 오프시키는 제4스위칭소자와,A fourth switching element which is operated by a voltage generated when the signal ground line of the charge pump IC is disconnected to turn off the second switching element; 상기 전하펌프 IC를 제어하는 마이컴을 포함하는 액츄에이터 구동장치.And an actuator for controlling the charge pump IC. 제1항에 있어서, 상기 제3스위칭소자는 쌍극성 접합 트랜지스터이며, 상기 쌍극성 접합 트랜지스터의 베이스단은 상기 전하펌프 IC의 신호접지단에 연결되고, 컬렉터단은 상기 제1스위칭소자의 게이트단에 연결되고, 이미터단은 상기 제1스위칭소자의 소스단에 연결되는 것을 특징으로 하는 액츄에이터 구동장치.The gate switching circuit of claim 1, wherein the third switching element is a bipolar junction transistor, a base end of the bipolar junction transistor is connected to a signal ground end of the charge pump IC, and a collector end is a gate end of the first switching element. And an emitter end is connected to a source end of the first switching element. 제1항에 있어서, 상기 제4스위칭소자는 쌍극성 접합 트랜지스터이며, 상기 쌍극성 접합 트랜지스터의 베이스단은 상기 전하펌프 IC의 신호접지단에 연결되고, 컬렉터단은 상기 제2스위칭소자의 게이트단에 연결되고, 이미터단은 상기 제2스위칭소자의 소스단에 연결되는 것을 특징으로 하는 액츄에이터 구동장치.The gate switching circuit of claim 1, wherein the fourth switching device is a bipolar junction transistor, a base end of the bipolar junction transistor is connected to a signal ground end of the charge pump IC, and a collector end is a gate end of the second switching device. And an emitter end is connected to a source end of the second switching element.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101218104B1 (en) * 2012-10-12 2013-01-03 주식회사 토오텍 Power bypass step control actuator
KR101218105B1 (en) * 2012-10-12 2013-01-03 주식회사 토오텍 Linear correcting step control actuator
KR20150087969A (en) * 2014-01-23 2015-07-31 주식회사 만도 Motor driving device

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JP4103021B2 (en) * 1998-12-01 2008-06-18 株式会社デンソー Actuator drive
KR100759873B1 (en) * 2002-05-10 2007-09-18 주식회사 만도 Circuit for driving solenoid valve of anti-lock brake system
KR100799482B1 (en) * 2002-05-13 2008-01-31 주식회사 만도 Control device for DC motor of vehicle ABS
KR100808008B1 (en) * 2004-02-17 2008-02-28 주식회사 만도 Circuit for driving actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101218104B1 (en) * 2012-10-12 2013-01-03 주식회사 토오텍 Power bypass step control actuator
KR101218105B1 (en) * 2012-10-12 2013-01-03 주식회사 토오텍 Linear correcting step control actuator
KR20150087969A (en) * 2014-01-23 2015-07-31 주식회사 만도 Motor driving device

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