KR101116132B1 - H-bridge circuit For Electric Parking Brake - Google Patents

H-bridge circuit For Electric Parking Brake Download PDF

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KR101116132B1
KR101116132B1 KR1020060073294A KR20060073294A KR101116132B1 KR 101116132 B1 KR101116132 B1 KR 101116132B1 KR 1020060073294 A KR1020060073294 A KR 1020060073294A KR 20060073294 A KR20060073294 A KR 20060073294A KR 101116132 B1 KR101116132 B1 KR 101116132B1
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control
fet
motor
circuit
bridge
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KR20080012460A (en
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전재형
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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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/746—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive and mechanical transmission of the braking action
    • 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
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B60W10/182—Conjoint control of vehicle sub-units of different type or different function including control of braking systems including control of parking brakes
    • 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
    • B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
    • B60T2201/10—Automatic or semi-automatic parking aid systems

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

본 발명은 모터 구동 회로에 관한 것으로, 특히 전자동 주차 브레이크(Electric Parking Brake : EPB)에 이용되는 에이치 브리지(H-bridge) 회로를 기계식 접점(Relay)과 전자소자(FET)의 장점을 결합하여 효율적으로 구동하도록 전원전압과 접지 사이의 제1, 제2 경로에 위치한 복수 개의 스위치와 각각 접속되는 트윈(Twin) 접점을 구비한 기계식 접점(Relay)으로 구성된 에이치 브리지 구동회로에 상기 트윈 접점에 공통 연결되어 제어신호에 따라 모터의 다양한 제어를 수행하는 제어선택수단을 포함하여 구성한 장치를 제공함으로써, 기계식 접점(Relay)보다 다양한 모터 제어를 수행할 수 있으며, 4개의 전자소자(FET)로 구성된 회로보다는 간단한 구성과 저렴한 가격으로 모터를 제어하고, 4개의 FET로 구성된 회로보다 제어 모드가 간단하지만 동일한 제어가 가능하기 때문에 보다 빠른 스위칭 제어를 수행할 수 있는 등의 효과가 있다BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor driving circuit. In particular, an H-bridge circuit used for an electric parking brake (EPB) is effectively combined with the advantages of a mechanical relay and an electronic device (FET). Common connection to the twin contacts to an H-bridge drive circuit comprising mechanical relays having twin contacts respectively connected to a plurality of switches located in the first and second paths between the power supply voltage and ground to drive By providing a device comprising a control selection means for performing a variety of control of the motor according to the control signal, it is possible to perform a variety of motor control than the mechanical relay (Relay), rather than a circuit consisting of four electronic elements (FET) When the motor is controlled with a simple configuration and low cost, and the control mode is simpler than a circuit consisting of four FETs, but the same control is possible. The more there is an effect such that you can perform fast switching control

기계식 접점(Relay), Power FET, 에이치 브리지 회로 Mechanical Relays, Power FETs, H Bridge Circuits

Description

전자동 주차 브레이크용 에이치 브리지 구동회로{H-bridge circuit For Electric Parking Brake}H-bridge circuit For Electric Parking Brake}

도 1은 종래 전자 브레이크용 에이치 브리지 구동회로 중 기계식 접점을 이용한 회로도.1 is a circuit diagram using a mechanical contact of the conventional H-bridge driving circuit for electronic brakes.

도 2는 도 1에서 기계식 접점을 이용할 때 각 접점 방향에서의 출력 파형을 보인 그래프.2 is a graph showing the output waveform in each contact direction when using the mechanical contact in FIG.

도 3은 종래 전자 브레이크용 에이치 브리지 구동회로 중 전자소자(FET)를 이용한 회로도.Figure 3 is a circuit diagram using an electronic device (FET) of the conventional H-bridge driving circuit for electronic brakes.

도 4는 도 3에서 전자소자(FET)를 이용할 때 각 FET에서의 출력 파형을 보인 그래프.4 is a graph showing the output waveform of each FET when using the electronic device (FET) in FIG.

도 5는 본 발명에 따른 브레이크용 에이치 브리지 구동회로의 구성을 보인 회로도.5 is a circuit diagram showing the configuration of an H bridge driver circuit for a brake according to the present invention;

도 6은 도 5에서 기계식 접점 및 전자소자(FET)를 이용할 때 각 접점 및 FET에서의 출력 파형을 보인 그래프.FIG. 6 is a graph showing output waveforms at each contact and the FET when using the mechanical contact and the electronic device (FET) in FIG.

*** 도면의 주요부분에 대한 설명 ****** Description of the main parts of the drawing ***

100, 101 : 스위치 110 : DC 모터100, 101: switch 110: DC motor

120, 150 : 게이트 구동부 130 ~ 133, 140 : FET120, 150: gate driver 130 to 133, 140: FET

본 발명은 모터 구동 회로에 관한 것으로, 특히 전자동 주차 브레이크(Electric Parking Brake : EPB)에 이용되는 에이치 브리지(H-bridge) 회로를 기계식 접점(Relay)과 전자소자(FET)의 장점을 결합하여 효율적으로 구동하는 전자동 주차 브레이크용 에이치 브리지 구동회로에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor driving circuit. In particular, an H-bridge circuit used for an electric parking brake (EPB) is effectively combined with the advantages of a mechanical relay and an electronic device (FET). It relates to an H bridge driving circuit for a fully automatic parking brake for driving.

일반적으로, 전자동 주차 브레이크(Electric Parking Brake : EPB)는 간단한 스위치 조작을 통해 자동으로 주차 브레이크를 작동 및 해제시키는 시스템으로, 비상제동, 엔진 정지시 주차 브레이크 자동체결, 경사로 밀림방지 등 여러 기능을 제공하여 운전자에게 편의성과 안전성을 주는 시스템이다.In general, the electric parking brake (EPB) is a system that automatically activates and releases the parking brake through simple switch operation.It provides various functions such as emergency braking, automatic fastening of the parking brake when the engine stops, and prevention of slope dropping. It is a system that gives convenience and safety to the driver.

통상적으로, EPB는 특성상 DC 전기 모터를 정회전 또는 역회전 구동해야 하는데, 주로 에이치 브리지라 명명된 회로가 널리 이용된다. 이와 같은 에이치 브리지의 구성은 도 1 및 도 3에 도시된 바와 같다. Typically, EPBs, by their nature, require a DC electric motor to be driven forward or reverse rotation, and a circuit mainly called an H bridge is widely used. The structure of the H bridge is as shown in FIGS. 1 and 3.

도 1은 종래 전자 브레이크용 에이치 브리지 구동회로 중 기계식 접점을 이용한 회로도로서, 이에 도시된 바와 같이 제1 스위치(100)가 제어명령에 따라 ⓐ 방향으로 스위칭을 하면 제2 스위치(101)는 ⓓ 방향으로 스위칭을 하여 전류는 ⓐ 방향에서 ⓓ 방향으로 흐르게 되어 모터(110)는 정방향 회전을 하게 되고, 반대로 상기 제1 스위치(100)가 ⓑ 방향으로 스위칭하고 상기 제2 스위치(101)가 ⓒ 방향으로 스위칭하면 전류는 ⓑ 방향에서 ⓒ 방향으로 흐르게 되어 상기 모터(110)가 역방향 회전을 하게 되는데, 도 2에 도시된 바와 같이 정방향과 역방향 모두 온/오프(On/Off)의 제어만 가능하여 고속 스위칭 제어를 할 수 없는 문제점이 있었다.FIG. 1 is a circuit diagram using a mechanical contact of an H-bridge driving circuit for a conventional electronic brake. As shown in FIG. 1, when the first switch 100 switches in the direction ⓐ according to a control command, the second switch 101 is in the ⓓ direction. Current flows from the ⓐ direction to the ⓓ direction so that the motor 110 rotates in the forward direction, on the contrary, the first switch 100 switches in the ⓑ direction and the second switch 101 in the ⓒ direction. When switching, current flows from ⓑ to ⓒ so that the motor 110 rotates in reverse direction. As shown in FIG. 2, only the on / off control is possible in both the forward and reverse directions, thereby enabling high speed switching. There was a problem that can not be controlled.

도 3은 종래 전자 브레이크용 에이치 브리지 구동회로 중 전자소자(FET)를 이용한 회로도로서, 이에 도시된 바와 같이 4개의 FET(130 ~ 133)에 게이트 구동부(120)가 연결되어 있고, 이 게이트 구동부(120)를 통해 상기 각 FET를 제어하는 것으로, 도 4에 도시된 바와 같이 ⓐ 방향의 FET(130)와 ⓓ 방향의 FET(133)를 턴-온시키면 모터(110)는 정방향 회전을 하게 되면 이때, 에이치 브리지 구동회로는 ⓐ 방향의 FET(130)와 ⓓ 방향의 FET(133) 모두 온/오프 모드, ⓐ 방향의 FET(130)는 온/오프, ⓓ 방향의 FET(133)는 펄스폭 변조(Puls Width Modulation : PWM) 모드, 상기 ⓐ 방향의 FET(130)는 PWM, ⓓ 방향의 FET(133)는 온/오프 모드, ⓐ 방향의 FET(130)와 ⓓ 방향의 FET(133) 모두 PWM 모드의 총 4 가지의 모드를 수행할 수 있다. 역방향 회전의 경우도 상기와 동일하다.FIG. 3 is a circuit diagram using an electronic element (FET) of the H-bridge driving circuit for a conventional electronic brake. As shown in FIG. 3, the gate driver 120 is connected to four FETs 130 to 133. As shown in FIG. 4, when the FET 130 in the ⓐ direction and the FET 133 in the ⓓ direction are turned on as shown in FIG. 4, the motor 110 rotates in the forward direction. In the H bridge driving circuit, both the FET 130 in the ⓐ direction and the FET 133 in the ⓓ direction are on / off mode, the FET 130 in the ⓐ direction is on / off, and the FET 133 in the ⓓ direction is pulse width modulated. (Puls Width Modulation: PWM) mode, the FET 130 in the ⓐ direction is PWM, the FET 133 in the ⓓ direction is on / off mode, the FET 130 in the ⓐ direction and the FET 133 in the ⓓ direction are both PWM A total of four modes can be performed. The same applies to the case of reverse rotation.

그러나, FET를 이용한 에이치 브리지 구동회로는 모터 속도를 조절하는 고속 스위칭은 가능하나 기계식 접점 방식보다 회로 구성이 복잡하고 고가의 부품을 사용하기 때문에 제품의 단가가 비싸지는 문제점이 있었다. However, the H-bridge driving circuit using the FET is capable of high-speed switching to control the motor speed, but there is a problem that the cost of the product is expensive because the circuit configuration is more complicated and expensive components are used than the mechanical contact method.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 창안한 것으로, 기계식 접점(Relay)과 전자소자(FET)의 장점을 결합하여 효율적으로 구동하는 장치를 제공함에 그 목적이 있다. Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object thereof is to provide an apparatus for driving efficiently by combining advantages of a mechanical relay and an electronic device (FET).

이와 같은 목적을 달성하기 위한 본 발명 전자동 주차 브레이크용 에이치 브리지 회로는 전원전압과 접지 사이의 제1, 제2 경로에 위치한 복수 개의 스위치와 각각 접속되는 트윈(Twin) 접점을 구비한 기계식 접점(Relay)으로 구성된 에이치 브리지 구동회로에 있어서, 상기 트윈 접점에 공통 연결되어 제어신호에 따라 모터의 다양한 제어를 수행하는 제어선택수단을 포함하여 구성한 것을 특징으로 한다.In order to achieve the above object, the automatic bridge brake H bridge circuit according to the present invention has a mechanical contact having a twin contact connected to each of a plurality of switches located in first and second paths between a power supply voltage and ground. In the H bridge driver circuit is configured to include a control selecting means for performing a variety of control of the motor in accordance with the control signal is commonly connected to the twin contact.

이하, 본 발명에 따른 실시예를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 5는 본 발명에 따른 브레이크용 에이치 브리지 구동회로의 구성을 보인 회로도로서, 이에 도시한 바와 같이 전원전압(Vcc)과 접지 사이의 제1, 제2 경로에 위치한 복수 개의 스위치(100, 101)와 각각 접속되는 트윈(Twin) 접점(ⓐ,ⓑ,ⓒ,ⓓ)을 구비한 기계식 접점(Relay)으로 구성된 에이치 브리지 구동회로에 있어서, 상기 트윈 접점(ⓐ,ⓑ,ⓒ,ⓓ)에 공통 연결되어 제어신호에 따라 모터(110)의 다양한 제어를 수행하는 파워 전계 효과 트랜지스터(Power Field Effect Transistor: FET, 140)와, 제어신호를 상기 파워 FET(140)로 출력하는 1-핀(pin) 게이트 구동부(150)로 구성한다. FIG. 5 is a circuit diagram illustrating the H-bridge driving circuit for the brake according to the present invention. As shown in FIG. In the H bridge driver circuit composed of a mechanical relay (Relay) having a twin contact (ⓐ, ⓑ, ⓒ, ⓓ) connected to each other, the common connection to the twin contacts (ⓐ, ⓑ, ⓒ, ⓓ) A power field effect transistor (FET) 140 for performing various control of the motor 110 according to a control signal, and a 1-pin gate for outputting a control signal to the power FET 140. The drive unit 150 is configured.

이와 같이 구성한 본 발명에 따른 실시에를 첨부한 도 6을 참조하여 동작 과정을 설명하면 다음과 같다. Referring to Figure 6 attached to the embodiment according to the present invention configured as described above will be described the operation process as follows.

도 6은 도 5에서 기계식 접점 및 전자소자(FET)를 이용할 때 각 접점 및 FET에서의 출력 파형을 보인 그래프로서, 이에 도시한 바와 같이 제1 스위치(100)를 ⓐ 방향의 접점으로 스위칭을 하고 제2 스위치(101)를 ⓓ 방향의 접점으로 스위칭 을 하면 전류는 제1 및 제2 경로를 따라 흐르고, 모터(110)는 정방향 회전을 시작하며, 동시에 게이트 구동부(150)는 제어신호를 Power FET(140)로 출력하며, Power FET(140)는 이때, 제어 모드를 선택하게 되는데, 모드 1과 같이 온/오프 제어만을 할 수 있고, 모드 2와 같이 모터(110)의 속도를 가변할 수 있는 펄스폭 변조(PWM) 제어를 수행할 수 있으며, 상기 기계식 접점(Relay)은 모터(110)의 구동방향 설정만을 하는데 사용한다. FIG. 6 is a graph showing output waveforms of each contact and the FET when using the mechanical contact and the electronic device (FET) in FIG. 5. As shown in FIG. 6, the first switch 100 is switched to a contact in the ⓐ direction. When the second switch 101 is switched to a contact in the ⓓ direction, current flows along the first and second paths, the motor 110 starts to rotate in the forward direction, and at the same time, the gate driver 150 supplies the control signal to the power FET. Output to 140, the power FET 140 is to select a control mode at this time, only the on / off control, such as mode 1, and can change the speed of the motor 110, such as mode 2 Pulse width modulation (PWM) control may be performed, and the mechanical relay is used only to set the driving direction of the motor 110.

마찬가지로, 역방향 회전인 경우, 상기 Power FET(140)는 상기 설명한 정방향 회전 때와 동일하게 동작을 하므로, 그에 대한 동작 과정은 생략한다. Similarly, in the reverse rotation, since the Power FET 140 operates in the same way as the forward rotation described above, the operation process thereof is omitted.

이상에서 설명한 바와 같이 본 발명 전자동 주차 브레이크용 에이치 브리지 회로는 기계식 접점(Relay)보다 다양한 모터 제어를 수행할 수 있으며, 4개의 전자소자(FET)로 구성된 회로보다는 간단한 구성과 저렴한 가격으로 모터를 제어하고, 4개의 FET로 구성된 회로보다 제어 모드가 간단하지만 동일한 제어가 가능하기 때문에 보다 빠른 스위칭 제어를 수행할 수 있는 등의 효과가 있다.As described above, the H bridge circuit for the automatic parking brake according to the present invention can perform various motor control than mechanical relay, and control the motor with simpler configuration and lower price than the circuit composed of four electronic elements (FET). In addition, although the control mode is simpler than a circuit composed of four FETs, the same control can be performed, so that a faster switching control can be performed.

Claims (3)

전원전압과 접지 사이의 제1, 제2 경로에 위치한 복수 개의 스위치와 각각 접속되는 트윈(Twin) 접점을 구비한 기계식 접점(Relay)으로 구성된 에이치 브리지 구동회로에 있어서, An H-bridge drive circuit comprising a mechanical relay having twin contacts connected to a plurality of switches located in first and second paths between a power supply voltage and ground, respectively, 제어신호를 출력하는 1-핀(pin) 게이트 구동부와, 상기 트윈 접점에 공통 연결되어 상기 1-핀 게이트 구동부에서 출력되는 상기 제어신호에 따라 온-오프되어 모터의 다양한 제어를 수행하는 하나의 파워 전계 효과 트랜지스터(Power Field Effect Transistor)를 포함하는 제어선택수단을 포함하여 구성한 것을 특징으로 하는 전자동 주차 브레이크용 에이치 브리지 회로.A 1-pin gate driver for outputting a control signal and a single power connected in common to the twin contacts to be turned on and off according to the control signal output from the 1-pin gate driver to perform various control of the motor. An H bridge circuit for automatic parking brakes, comprising: control selection means including a power field effect transistor. 삭제delete 삭제delete
KR1020060073294A 2006-08-03 2006-08-03 H-bridge circuit For Electric Parking Brake Expired - Fee Related KR101116132B1 (en)

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KR100860481B1 (en) 2007-07-31 2008-09-26 주식회사 만도 Pet-Device Monitoring Method for Pet-Device H-Bridge Driving Circuit for Automatic Parking Brake
KR101309509B1 (en) * 2008-09-24 2013-09-24 주식회사 만도 Motor drive circuit of electric parking brake

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH02261091A (en) * 1989-01-23 1990-10-23 Toyota Auto Body Co Ltd Dc motor controller
KR200387544Y1 (en) 2005-02-25 2005-06-20 비엔비넷(주) Motor driving circuit for minimizing resistance of counter electromotive force
US20050200323A1 (en) * 2004-02-20 2005-09-15 Gregor Svobodnik Device and method for controlling an electrical motor mounted on the crossarm of a bridge cicuit
KR20060081025A (en) * 2005-01-06 2006-07-12 엘지전자 주식회사 Motor drive control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02261091A (en) * 1989-01-23 1990-10-23 Toyota Auto Body Co Ltd Dc motor controller
US20050200323A1 (en) * 2004-02-20 2005-09-15 Gregor Svobodnik Device and method for controlling an electrical motor mounted on the crossarm of a bridge cicuit
KR20060081025A (en) * 2005-01-06 2006-07-12 엘지전자 주식회사 Motor drive control
KR200387544Y1 (en) 2005-02-25 2005-06-20 비엔비넷(주) Motor driving circuit for minimizing resistance of counter electromotive force

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