KR0138813Y1 - Power supply apparatus for engine control unit - Google Patents

Power supply apparatus for engine control unit Download PDF

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Publication number
KR0138813Y1
KR0138813Y1 KR2019940033986U KR19940033986U KR0138813Y1 KR 0138813 Y1 KR0138813 Y1 KR 0138813Y1 KR 2019940033986 U KR2019940033986 U KR 2019940033986U KR 19940033986 U KR19940033986 U KR 19940033986U KR 0138813 Y1 KR0138813 Y1 KR 0138813Y1
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KR
South Korea
Prior art keywords
engine control
control unit
power
unit
ecu
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KR2019940033986U
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Korean (ko)
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KR960023233U (en
Inventor
김승기
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전성원
현대자동차주식회사
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Priority to KR2019940033986U priority Critical patent/KR0138813Y1/en
Publication of KR960023233U publication Critical patent/KR960023233U/en
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Publication of KR0138813Y1 publication Critical patent/KR0138813Y1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

본 고안은 차량의 엔진제어장치에 관한 것으로, 보다 상세하게는 엔진의 구동상태를 제어하는 엔진제어(ECU)에 공급되는 전원공급 장치에 관한 것이다.The present invention relates to an engine control apparatus for a vehicle, and more particularly, to a power supply device supplied to an engine control (ECU) for controlling a driving state of an engine.

본 고안은 엔진을 제어하는 엔진제어부(ECU)와 엔진제어부(ECU)에 전원공급하는 배터리 사이에 접속되는 메인릴레이가 엔진제어부의 중앙처리장치에 의해 제어되도록 하고, 배터리로부터 중앙처리장치에 이그니션스위치를 경유하여 전원이 공급되도록 하므로서 메인릴레이에 이상상태가 발생하여도 엔진제어부에 항상 전원이 공급되도록 할 수 있다.The present invention allows the main relay connected between the engine control unit (ECU) for controlling the engine and the battery for supplying power to the engine control unit (ECU) to be controlled by the central processing unit of the engine control unit, and the ignition switch from the battery to the central processing unit. Power is supplied via the engine, so that even if an abnormal state occurs in the main relay, power can always be supplied to the engine control unit.

Description

엔진제어부(ECU)의 전원공급장치Power supply unit of engine control unit (ECU)

제1도는 종래의 엔진제어장치 구성 회로도.1 is a circuit diagram of a conventional engine controller.

제2도는 본 고안에 따른 엔진제어장치 구성 회로도.2 is a circuit diagram of an engine control apparatus according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 엔진제어부 20 : 배터리10: engine control unit 20: battery

30 : 이그니션키이스위치부 40 : 메인릴레이부30: ignition key switch part 40: main relay part

50 : 센서및 액튜에이터50: sensors and actuators

본 고안은 차량의 엔진제어장치에 관한 것으로, 보다 상세하게는 엔진의 구동상태를 제어하는 엔진제어(ECU)에 공급되는 전원공급 장치에 관한 것이다.The present invention relates to an engine control apparatus for a vehicle, and more particularly, to a power supply device supplied to an engine control (ECU) for controlling a driving state of an engine.

종래의 엔진제어부(ECU)(10)에 공급되는 전원공급장치는 제1도에서 나타낸 바와같이, 배터리(battery)(20)와 엔진제어부(ECU)(10) 사이에 이그니션키이스위치(30)의 작동상태에 따라 구동되는 메인릴레이(40)를 접속시킨다.The power supply device supplied to the conventional engine control unit (ECU) 10 is, as shown in FIG. 1, the ignition key switch 30 between the battery 20 and the engine control unit (ECU) 10. The main relay 40 driven according to the operating state is connected.

상기 이그니션키이스위치(30)를 온(ON) 절환시키면 메인릴레이(40)가 온(ON) 상태로 절환되면서 배터리(20)로 엔진제어부(10)에 전원공급되게 되는데 상기 메인릴레이(40)가 고장이 발생되게 되면 엔진제어부에 전원이 공급되지 않게 되어 엔진제어부(10)가 작동되지 않을 뿐만 아니라 주변센서(sensor) 및 액튜에이터(actuator)(50)등에도 전원공급이 중단되어 엔진이 작동하지 않는 문제점이 있었다.When the ignition key switch 30 is switched on, the main relay 40 is switched to the on state, and the main relay 40 is supplied to the engine control unit 10 by the battery 20. If a failure occurs, power is not supplied to the engine control unit so that the engine control unit 10 does not operate, and the power supply to the peripheral sensor and the actuator 50 is stopped and the engine does not operate. There was a problem.

본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 본 고안의 목적은 엔진제어부(ECU)에 전원이 공급되도록 하는 메인릴레이의 고장 여부에 관계없이 배터리(battery)로 부터 엔진제어부에 전원이 공급되도록 하므로서 엔진을 원활하게 작동시킬 수 있는 장치를 제공하는데 있다.The present invention has been made to solve the above problems, the object of the present invention is to supply power to the engine control unit from the battery (battery) regardless of whether the main relay failure to supply power to the engine control unit (ECU) It is to provide a device that can operate the engine smoothly by supplying.

상기 목적을 달성하기 위하여 본 고안은 엔진제어부(ECU)에 전원을 공급하는 배터리(battery)와, 상기 배터리와 엔진제어부 사이에 접속되어 엔진제어부(ECU)의 전원회로에 전원이 공급되도록 하는 메인릴레이부와, 상기 배터리와 엔진제어부 사이에 접속되며 엔진제어부의 중앙처리장치(CPU)에 전원이 공급되도록 하는 이그니션키이스위치부와, 상기 메인릴레이부와 이그니션키이스위치부에 접속되며 전원회로와 중앙처리장치(CPU) 및 트랜지스터로 구성되어 있는 엔진제어부(ECU)와, 상기 이그니션스위치부와 전원회로 사이에 접속되어 메인릴레이부의 고장시에 전원회로에 전원이 공급되도록 하는 다이오드(diode)로 이루어지는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a battery for supplying power to an engine control unit (ECU), and a main relay connected between the battery and the engine control unit to supply power to a power circuit of the engine control unit (ECU). And an ignition key switch unit connected between the battery and the engine control unit to supply power to a central processing unit (CPU) of the engine control unit, and the main relay unit and the ignition key switch unit connected to the power circuit and the central processing unit. An engine control unit (ECU) composed of a device (CPU) and a transistor, and a diode connected between the ignition switch unit and a power supply circuit to supply power to the power supply circuit in the event of a failure of the main relay unit. It is done.

이하 첨부된 도면을 참조하여 본 고안을 설명하면 다음과 같다.Hereinafter, the present invention will be described with reference to the accompanying drawings.

제2도를 참조하여 설명하면, 엔진제어부(ECU)(10)에는 배터리(20)로 부터 전원을 공급받아 중앙처리장치(22)에 전원을 공급시키는 전원회로(24)가 구비되고, 상기 전원회로(24)로 부터 전원을 공급받는 중앙처리장치(22)에는 이그니션키이스위치부(30)에 접속되고 또한 중앙처리장치(22)에 전원이 공급되었을때 온(ON) 절환되는 트랜지스터(TR)의 베이스단이 접속되며, 상기 트랜지스터(TR)의 컬렉터단은 메인릴레이부(40)의 릴레이단자()에 접속되어 진다.Referring to FIG. 2, the engine control unit (ECU) 10 includes a power supply circuit 24 that receives power from the battery 20 and supplies power to the central processing unit 22. The central processing unit (22) supplied with power from the circuit (24) is connected to the ignition key switch unit (30) and is switched on when the power supply is supplied to the central processing unit (22). The base terminal of the transistor TR is connected, and the collector terminal of the transistor TR is connected to the relay terminal () of the main relay unit 40.

즉, 상기와 같이 구성된 엔진제어부(10)에는 배터리(20)로 부터 전원이 메인릴레이부(40) 및 이그니션키이스위치부(30)를 통해 각각 인가된다.That is, power is supplied from the battery 20 to the engine control unit 10 configured as described above through the main relay unit 40 and the ignition key switch unit 30, respectively.

일실시예를 통해 본 고안을 상세히 설명하면 다음과 같다.Referring to the present invention in detail through one embodiment as follows.

배터리(battery)(20)에 접속된 이그니션키이스위치부(30)를 온(ON) 절환시키면 배터리(20)로 부터 전원이 다이오드(23)을 통해서 전원회로(24)에 인가된다. 상기 전원회로(24)는 중앙처리장치(22)로 동작가능한 전원전압으로 바꾸어 공급시키면서 레스트(rest)신호를 발생시켜 중앙처리장치가 작동된다. 일단 중앙처리장치가 작동되면 이그니션스위치부(30)의 온(on)절환 신호(21)상태를 감지한뒤 트랜지스터(20)의 베이스단에 전원을 공급시켜 트랜지스터를 온(on)절환 시킨다. 따라서 메인릴레이부(4)의 릴레이단자가 도통되면서 엔진제어부(10)및 센서(42) 그리고 엑튜에이터(50)에 주전원으로 공급되게 된다.When the ignition key switch unit 30 connected to the battery 20 is ON, power is supplied from the battery 20 to the power supply circuit 24 through the diode 23. The power supply circuit 24 generates a rest signal while supplying a power supply voltage that is operable to the central processing unit 22 to operate the central processing unit. Once the central processing unit is operated, the on switch 21 of the ignition switch unit 30 detects the state and supplies power to the base of the transistor 20 to switch the transistor on. Therefore, while the relay terminal of the main relay unit 4 is turned on, the engine control unit 10, the sensor 42, and the actuator 50 are supplied as main power.

상기와 같이 동작되는 중에 메인릴레이부(40)가 고장발생되면 이그니션키이스위치부(30) 및 다이오드(D1)을 통해 전원회로(24)에 전원이 공급되므로 엔진제어부(10)에는 항상 전원이 공급되게 된다.If the main relay unit 40 malfunctions during the operation as described above, power is supplied to the power supply circuit 24 through the ignition key switch unit 30 and the diode D1, so that power is always supplied to the engine control unit 10. Will be.

또한 이그니션키이스위치부(30)가 오프(off)되면 중앙처리장치(22)가 이를 감지하여 메인릴레이부(40)를 구동시키는 트랜지스터(TR)를 오프(off) 절환시켜 메인릴레이부(40)의 동작을 중단시키므로서 엔진제어부(10)에 전원이 공급되지 않도록 한다.In addition, when the ignition key switch unit 30 is turned off, the central processing unit 22 detects this and turns off the transistor TR driving the main relay unit 40 to turn off the main relay unit 40. The power is not supplied to the engine control unit 10 by stopping the operation of the engine.

이상 설명에서 알 수 있는 바와같이, 본 고안은 엔진을 제어하는 엔진제어부(ECU)와 엔진제어부(ECU)에 전원공급하는 배터리 사이에 접속되는 메인릴레이가 엔진제어부의 중앙처리장치에 의해 제어되도록 하고, 배터리로 부터 중앙처리장치에 이그니션스위치를 경유하여 전원이 공급되도록 하므로서 메인릴레이에 이상상태가 발생하여도 엔진제어부에 항상 전원이 공급되도록 할 수 있다.As can be seen from the above description, the present invention allows the main relay connected between the engine control unit ECU to control the engine and the battery supplying power to the engine control unit ECU to be controlled by the central processing unit of the engine control unit. In addition, since the power is supplied from the battery to the central processing unit via the ignition switch, the engine control unit can be always supplied to the engine control unit even when an abnormal state occurs in the main relay.

Claims (1)

엔진제어부(ECU)에 전원을 공급하는 배터리(battery)와, 상기 배터리와 엔진제어부 사이에 접속되어 엔진제어부(ECU)의 전원회로에 전원이 공급되도록 하는 메인릴레이부와, 상기 배터리와 엔진제어부 사이에 접속되며 엔진제어부의 중앙처리장치(CPU)에 전원이 공급되도록 하는 이그니션키이스위치부와, 상기 메인릴레이부와 이그니션키이스위치부에 접속되며 전원회로와 중앙처리장치 및 트랜지스터로 구성되어 있는 엔진제어부(ECU)와, 상기 이그니션스위치부와 전원회로사이에 접속되어 메인릴레이부의 고장시에 전원회로에 전원이 공급되도록 하는 다이오드(diode)로 이루어지는 것을 특징으로 하는 엔진제어부(ECU)의 전원공급장치.A battery supplying power to the engine control unit ECU, a main relay unit connected between the battery and the engine control unit to supply power to the power circuit of the engine control unit ECU, and between the battery and the engine control unit. An ignition key switch unit connected to the main control unit (CPU) to supply power to an engine control unit, and an engine control unit connected to the main relay unit and the ignition key switch unit and comprising a power circuit, a central processing unit, and a transistor. And a diode connected between the ECU and the power supply circuit to supply power to the power supply circuit in case of failure of the main relay unit.
KR2019940033986U 1994-12-14 1994-12-14 Power supply apparatus for engine control unit KR0138813Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019940033986U KR0138813Y1 (en) 1994-12-14 1994-12-14 Power supply apparatus for engine control unit

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Application Number Priority Date Filing Date Title
KR2019940033986U KR0138813Y1 (en) 1994-12-14 1994-12-14 Power supply apparatus for engine control unit

Publications (2)

Publication Number Publication Date
KR960023233U KR960023233U (en) 1996-07-20
KR0138813Y1 true KR0138813Y1 (en) 1999-05-15

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