KR20120088905A - Power apparatus for vehicle - Google Patents

Power apparatus for vehicle Download PDF

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KR20120088905A
KR20120088905A KR1020110009861A KR20110009861A KR20120088905A KR 20120088905 A KR20120088905 A KR 20120088905A KR 1020110009861 A KR1020110009861 A KR 1020110009861A KR 20110009861 A KR20110009861 A KR 20110009861A KR 20120088905 A KR20120088905 A KR 20120088905A
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South Korea
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switch
battery
vehicle
power
ecu
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KR1020110009861A
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Korean (ko)
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KR101407973B1 (en
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김휘섭
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주식회사 만도
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • 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
    • H02J7/14—Circuit 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE: A power apparatus for a vehicle is provided to prevent the discharge of a battery because of the malfunction of a door switch by shutting down the input of a power unit if a door switch signal is turned on over a predetermined time. CONSTITUTION: A power apparatus for a vehicle comprises a battery(10), multiple switches(20,22,24), and an ECU(30). The battery is loaded on a vehicle. The multiple switches are connected to all kinds of electric loads mounted on the vehicle and generate switch signals for driving the electric loads. The ECU supplies battery power to the electric loads after receiving the switch signals generating in the multiple switches. The ECU shuts down the path of the battery power supplied to the electric loads if the switch signals are inputted over a predetermined time.

Description

차량용 전원 장치{POWER APPARATUS FOR VEHICLE}Power Supply for Vehicles {POWER APPARATUS FOR VEHICLE}

본 발명은 차량용 전원 장치에 관한 것으로, 더욱 상세하게는 운전자의 의지에 따라 차량 내부의 ECU 전원을 공급하는 차량용 전원 장치에 관한 것이다.The present invention relates to a vehicle power supply device, and more particularly to a vehicle power supply device for supplying the ECU power in the vehicle in accordance with the driver's will.

일반적으로, 차량에 탑재되는 배터리는 엔진의 시동, 점화, 조명 및 기타 전장품을 비롯한 각종 전기 부하들을 구동하기 위한 ECU 전원으로 사용된다. 이러한 배터리는 완전 충전된 상태에서 방전종지전압까지 방전하는 동안에 만들어낼 수 있는 전기량으로 축전용량을 나타내며, 축적된 전기에너지를 방전하여 각종 전기 부하에 전원을 공급한다. 배터리의 방전은 전기 부하의 구동에 의해 축전용량이 감소하게 되므로 수시로 충전하여 적정범위 내의 축전용량을 유지할 수 있도록 한다.In general, a battery mounted on a vehicle is used as an ECU power source for driving various electric loads, including starting, ignition, lighting, and other electronics of an engine. Such a battery represents a storage capacity as an amount of electricity generated during discharge to a discharge end voltage in a fully charged state, and discharges accumulated electrical energy to supply power to various electrical loads. Since the discharge of the battery is reduced by the driving of the electrical load, the battery can be charged at any time to maintain the capacitance within a proper range.

전기 부하에 연결된 어느 하나의 스위치(예를 들어, IGN 스위치, 브레이크 스위치, 도어 스위치 등)가 온되면, 전장 ECU는 스위치의 온 조작에 따른 운전자의 의지를 판단하여 전원부의 입력을 온/오프 제어함으로써 배터리 전원이 각종 전기 부하에 공급될 수 있도록 한다.When any one of the switches connected to the electrical load (eg, IGN switch, brake switch, door switch, etc.) is turned on, the electric field ECU determines the driver's will according to the on operation of the switch and controls the input of the power supply on / off. This allows battery power to be supplied to various electrical loads.

그러나, 도어 스위치의 고장으로 도어 스위치가 계속 온되는 경우 ECU 소비 전류에 따른 배터리의 방전이 발생되고, 이로 인해 전기 부하에 지속적으로 배터리 전원이 공급됨에 따라 배터리의 과도한 방전이 발생하여 배터리의 기능이 상실되거나 보수상 정비작업이 요구되는 문제점이 있다.However, when the door switch is continuously turned on due to a failure of the door switch, the battery is discharged according to the current consumption of the ECU. As a result, the battery power is excessively discharged due to the continuous supply of battery power to the electrical load. There is a problem that is lost or maintenance is required.

본 발명은 스위치 신호가 일정시간 이상 온되면 스위치의 고장에 따른 배터리의 방전을 방지하기 위해 전원부 입력을 셧다운(Shutdown)하는 차량용 전원 장치를 제시하고자 한다.The present invention is to propose a vehicle power supply device for shutting down the power supply input to prevent the discharge of the battery due to the failure of the switch when the switch signal is turned on for a predetermined time or more.

이를 위해 본 발명의 일 실시예에 의한 차량용 전원 장치는, 차량에 탑재된 배터리; 차량에 장착된 각종 전기 부하에 연결되어 전기 부하를 구동시키기 위한 스위치 신호를 발생하는 복수의 스위치; 복수의 스위치로부터 발생되는 스위치 신호를 입력받아 전기 부하에 배터리 전원을 공급하고, 스위치 신호가 일정시간 이상 입력되면 전기 부하에 공급되는 배터리 전원의 경로를 셧다운하는 ECU를 포함한다.To this end, a vehicle power supply apparatus according to an embodiment of the present invention includes a battery mounted on a vehicle; A plurality of switches connected to various electrical loads mounted on the vehicle to generate a switch signal for driving the electrical load; It includes an ECU for receiving a switch signal generated from a plurality of switches to supply battery power to the electrical load, and shuts down the path of the battery power supplied to the electrical load when the switch signal is input for a predetermined time or more.

복수의 스위치는 차량의 엔진 시동을 스위칭하는 IGN 스위치와, 브레이크 스위치, 도어 스위치를 포함한다.The plurality of switches include an IGN switch for switching the engine start of the vehicle, a brake switch and a door switch.

ECU는 배터리로부터 공급되는 14V 전원을 전기 부하를 구동하기 위한 5V ECU 전원으로 변환하여 출력하는 전원부와; 복수의 스위치로부터 입력되는 스위치 신호에 따라 ECU 전원을 온/오프 제어하고, 스위치 신호가 입력되는 시간이 일정시간 이상 경과하면 전원부의 입력을 제어하기 위한 신호를 출력하는 제어부와; 제어부의 제어 신호에 따라 상기 전원부의 입력을 셧다운하는 구동 회로를 포함한다.The ECU includes a power supply unit for converting the 14V power supplied from the battery into a 5V ECU power for driving an electrical load and outputting the same; A controller for controlling ECU power on / off according to switch signals input from a plurality of switches, and outputting a signal for controlling the input of the power supply unit when a time for which the switch signal is input elapses for a predetermined time; And a driving circuit for shutting down the input of the power supply unit according to a control signal of the controller.

이상에서 살펴본 바와 같이, 본 발명의 일 실시예에 의한 차량용 전원 장치는, 전기 부하에 연결된 각종 스위치들의 신호를 입력받아 운전자의 의지를 판단하여 ECU 전원을 공급하고, 도어 스위치 신호가 일정시간 이상 온되면 전원부 입력을 셧다운(Shutdown)하여 도어 스위치의 고장에 따른 배터리의 방전을 방지할 수 있도록 한다.As described above, the vehicle power supply apparatus according to an embodiment of the present invention receives signals from various switches connected to an electrical load to determine the driver's intention to supply ECU power, and the door switch signal is turned on for a predetermined time or more. In this case, the power supply input is shut down to prevent battery discharge due to a failure of the door switch.

도 1은 본 발명의 일 실시예에 의한 차량용 전원 장치를 나타낸 구성 구성도이다.
도 2는 본 발명의 일 실시예에 의한 차량용 전원 장치의 타이밍 그래프이다.1 is a configuration diagram showing a vehicle power supply apparatus according to an embodiment of the present invention.
2 is a timing graph of a vehicle power supply apparatus according to an embodiment of the present invention.

이하, 본 발명의 일 실시예를 첨부된 도면을 참조하여 설명한다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 의한 차량용 전원 장치를 나타낸 구성 블록도이다.1 is a block diagram showing a vehicle power supply apparatus according to an embodiment of the present invention.

도 1에서, 본 발명의 일 실시예에 의한 차량용 전원 장치는 차량에 탑재된 배터리(10)와, 차량에 장착된 각종 전기 부하에 연결된 복수의 스위치(20, 22, 24)와, 사용자의 스위치(20, 22, 24) 조작에 따라 운전자의 의지를 판단하여 전기 부하에 배터리(10) 전원을 공급하고 스위치(20, 22, 24)의 고장에 따른 배터리(10)의 방전을 방지하기 위해 배터리(10)의 전원을 셧다운(Shutdown) 제어하는 ECU(30)를 포함한다.In FIG. 1, a vehicle power supply apparatus according to an embodiment of the present invention includes a battery 10 mounted in a vehicle, a plurality of switches 20, 22, and 24 connected to various electric loads mounted on the vehicle, and a switch of a user. In order to determine the driver's will according to the operation (20, 22, 24), supply the battery 10 power to the electrical load, and to prevent the discharge of the battery 10 due to the failure of the switches 20, 22, 24. ECU 30 for shutting down the power supply of (10).

배터리(10)는 차량의 각종 전기 부하를 구동하기 위한 14V 전원을 ECU(30)에 공급한다.The battery 10 supplies the ECU 30 with 14V power for driving various electric loads of the vehicle.

복수의 스위치(20, 22, 24)는 차량의 엔진 시동을 스위칭하는 IGN 스위치(20)와, 차량의 브레이크를 스위칭하는 브레이크 스위치(22)와, 차량의 도어를 오픈/클로즈 스위칭하는 도어 스위치(24)를 포함한다.The plurality of switches 20, 22, and 24 may include an IGN switch 20 for switching the engine start of the vehicle, a brake switch 22 for switching the brake of the vehicle, and a door switch for opening / closing the door of the vehicle ( 24).

ECU(30)는 배터리(10)로부터 공급되는 14V 전원을 입력받아 전기 부하를 구동하기 위한 5V(Vcc)의 차량 내부 전원 즉, ECU 전원으로 변환하여 출력하는 전원부(31)와, 복수의 스위치(20, 22, 24)로부터 스위치 신호를 입력받아 운전자의 의지를 판단하여 ECU 전원을 제어하는 제어부(32)와, 제어부(32)의 제어 신호에 따라 전원부(31)의 입력을 셧다운(Shutdown)하는 구동 회로(33)와, 사용자의 스위치 조작에 따른 스위치 신호를 전원부(31)에 전달하는 인터페이스 회로(34)를 포함한다.The ECU 30 receives a 14V power supplied from the battery 10 and converts it into a 5V (Vcc) in-vehicle power source for driving an electrical load, that is, an ECU power source 31, and a plurality of switches ( The controller 32 controls the ECU power by receiving the switch signal from 20, 22, and 24, and shuts down the input of the power supply unit 31 according to the control signal of the controller 32. The drive circuit 33 and the interface circuit 34 which transmits the switch signal according to a switch operation of a user to the power supply part 31 is included.

제어부(32)는 사용자의 스위치(20, 22, 24) 조작에 따라 차량에 장착된 각종 전기 부하에 전원을 공급하도록 전원부(31)의 입력을 온/오프 제어하고, 스위치 신호가 일정시간 이상 계속 입력되면 스위치(20, 22, 24)의 고장으로 판단하여 배터리(10)의 방전을 방지하도록 전원부(31)의 입력을 셧다운(Shutdown) 제어하는 MCU이다.The control unit 32 controls the input of the power supply unit 31 on / off to supply power to various electric loads mounted on the vehicle according to the user's operation of the switches 20, 22, and 24, and the switch signal continues for a predetermined time or more. When input, the MCU determines that the switch 20, 22, 24 is broken and shuts down the input of the power supply unit 31 to prevent the battery 10 from being discharged.

이하, 상기와 같이 구성된 차량용 전원 장치의 동작 과정 및 작용 효과를 설명한다.Hereinafter, the operation process and the effect of the vehicle power supply device configured as described above will be described.

도 1은 본 발명의 일 실시예에 의한 차량용 전원 장치를 나타낸 구성 구성도이고, 도 2는 본 발명의 일 실시예에 의한 차량용 전원 장치의 타이밍 그래프이다.1 is a configuration diagram showing a vehicle power supply apparatus according to an embodiment of the present invention, Figure 2 is a timing graph of a vehicle power supply apparatus according to an embodiment of the present invention.

도 1 및 도 2에서, 사용자가 구동시키고자 하는 전기 부하에 대응하는 스위치(20, 22, 24) 중 어느 하나의 스위치를 온시키면, 해당 스위치 신호가 ECU(30)의 제어부(32)에 입력된다.1 and 2, when the user switches on any one of the switches 20, 22, and 24 corresponding to the electric load to be driven, the corresponding switch signal is input to the controller 32 of the ECU 30. do.

따라서, 제어부(32)는 전기 부하에 대응하는 복수의 스위치(20, 22, 24)로부터 입력되는 스위치 신호에 따라 운전자의 의지를 판단하고, 운전자의 의지에 따라 해당 전기 부하에 ECU 전원을 공급하도록 전원부(31)를 온/오프 제어한다.Accordingly, the controller 32 determines the driver's will according to the switch signals input from the plurality of switches 20, 22, and 24 corresponding to the electric load, and supplies the ECU power to the electric load according to the driver's will. The power supply unit 31 is controlled on / off.

이때, 전원부(31)는 배터리(10)로부터 공급되는 14V 전원을 입력받아 전기 부하를 구동하기 위한 5V(Vcc)의 ECU 전원으로 변환하여 전기 부하에 공급한다.At this time, the power supply unit 31 receives the 14V power supplied from the battery 10 and converts it into ECU power of 5V (Vcc) for driving the electric load and supplies it to the electric load.

이에 따라, 전원부(31)로부터 전기 부하에 5V ECU 전원이 공급되어 전기 부하가 구동된다.Thereby, 5V ECU power is supplied from the power supply part 31 to an electrical load, and an electrical load is driven.

도 2는 IGN 스위치(20), 브레이크 스위치(22), 도어 스위치(24)의 신호 입력에 따라 전원부(31)에서 5V ECU 전원을 공급하는 타이밍을 나타내었다.2 illustrates a timing of supplying 5V ECU power from the power supply unit 31 according to signal inputs of the IGN switch 20, the brake switch 22, and the door switch 24.

도 2에서 보듯이, IGN 스위치(20), 브레이크 스위치(22), 도어 스위치(24)의 조작에 따라 각각의 스위치 신호가 발생하면 5V ECU 전원이 공급됨을 알 수 있다.As shown in FIG. 2, it can be seen that 5V ECU power is supplied when each switch signal is generated according to the operation of the IGN switch 20, the brake switch 22, and the door switch 24.

그러나, 도어 스위치(24)의 고장으로 도 2에 도시한 바와 같이, 도어 스위치 신호가 일정시간 이상 계속 입력되면 배터리(10)의 방전이 지속적으로 진행되므로 제어부(32)는 도어 스위치 신호가 입력되는 시간을 카운터하여 미리 정해진 일정시간을 경과하면 도어 스위치(24)의 고장으로 판단하고, 지속적으로 진행되는 배터리(10)의 방전을 방지하기 위해 구동 회로(33)에 전원부(31)의 입력을 셧다운(Shutdown)하기 위한 제어 신호를 출력한다.However, as shown in FIG. 2 due to a failure of the door switch 24, when the door switch signal is continuously input for a predetermined time or more, since the discharge of the battery 10 proceeds continuously, the control unit 32 receives the door switch signal. After the predetermined time elapses by counting the time, it is determined that the door switch 24 is broken, and the input of the power supply unit 31 is shut down to the driving circuit 33 to prevent the discharge of the battery 10 continuously. Outputs a control signal for (Shutdown).

따라서, 구동 회로(33)는 제어부(32)의 제어 신호에 따라 전원부(31)의 입력을 셧다운(Shutdown)시켜 도어 스위치(24)의 고장 시 배터리(10)의 방전을 차단할 수 있도록 한다.Therefore, the driving circuit 33 shuts down the input of the power supply unit 31 according to the control signal of the control unit 32 to block the discharge of the battery 10 when the door switch 24 fails.

한편, 본 발명의 일 실시예에서는 도어 스위치(24)의 고장에 따른 배터리(10)의 방전을 방지하고자 전원부(31)의 입력을 제어하는 것을 예로 들어 설명하였으나, 본 발명은 이에 한정되지 않고 다른 스위치들의 고장 시에도 본 발명과 동일한 목적 및 효과를 달성할 수 있음은 물론이다.Meanwhile, in an embodiment of the present invention, the input of the power supply unit 31 is controlled to prevent discharge of the battery 10 due to a failure of the door switch 24, but the present invention is not limited thereto. It is a matter of course that the same object and effect as the present invention can be achieved even when the switches fail.

10 : 배터리 20 : IGN 스위치
22 : 브레이크 스위치 24 : 도어 스위치
30 : ECU 31 : 전원부
32 : 제어부 33 : 구동 회로
34 : 인터페이스 회로10: battery 20: IGN switch
22: brake switch 24: door switch
30: ECU 31: power supply
32 control unit 33 drive circuit
34: interface circuit

Claims (3)

차량에 탑재된 배터리;
상기 차량에 장착된 각종 전기 부하에 연결되어 상기 전기 부하를 구동시키기 위한 스위치 신호를 발생하는 복수의 스위치;
상기 복수의 스위치로부터 발생되는 스위치 신호를 입력받아 상기 전기 부하에 상기 배터리 전원을 공급하고, 상기 스위치 신호가 일정시간 이상 입력되면 상기 전기 부하에 공급되는 상기 배터리 전원의 경로를 셧다운하는 ECU를 포함하는 차량용 전원 장치.A battery mounted in a vehicle;
A plurality of switches connected to various electric loads mounted on the vehicle to generate a switch signal for driving the electric load;
And an ECU for receiving the switch signals generated from the plurality of switches to supply the battery power to the electric load, and shutting down a path of the battery power supplied to the electric load when the switch signal is input for a predetermined time or more. Automotive power supply. 제1항에 있어서,
상기 복수의 스위치는 상기 차량의 엔진 시동을 스위칭하는 IGN 스위치와, 브레이크 스위치, 도어 스위치를 포함하는 차량용 전원 장치.The method of claim 1,
The plurality of switches includes an IGN switch for switching the engine start of the vehicle, a brake switch, a door switch. 제1항에 있어서,
상기 ECU는 상기 배터리로부터 공급되는 14V 전원을 상기 전기 부하를 구동하기 위한 5V ECU 전원으로 변환하여 출력하는 전원부와; 상기 복수의 스위치로부터 입력되는 스위치 신호에 따라 상기 ECU 전원을 온/오프 제어하고, 상기 스위치 신호가 입력되는 시간이 상기 일정시간 이상 경과하면 상기 전원부의 입력을 제어하기 위한 신호를 출력하는 제어부와; 상기 제어부의 제어 신호에 따라 상기 전원부의 입력을 셧다운하는 구동 회로를 포함하는 차량용 전원 장치.The method of claim 1,
The ECU includes a power supply unit for converting 14V power supplied from the battery into 5V ECU power for driving the electric load and outputting the same; A control unit which controls the ECU power on / off according to switch signals input from the plurality of switches, and outputs a signal for controlling the input of the power supply unit when a time for which the switch signal is input passes for the predetermined time or more; And a driving circuit for shutting down the input of the power supply unit according to a control signal of the control unit.
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KR20140031024A (en) * 2012-09-04 2014-03-12 현대모비스 주식회사 Apparatus and method for stabilizing battery power of electric booster system
KR101388467B1 (en) * 2012-12-20 2014-04-23 현대오트론 주식회사 Apparatus for controlling power of battery
KR20150007882A (en) * 2013-07-12 2015-01-21 현대모비스 주식회사 Method for motor initialization of electric booster braking system
KR20170008383A (en) * 2015-07-13 2017-01-24 현대모비스 주식회사 Apparatus for controlling electro mechanical brake system and method therof
KR101967464B1 (en) 2018-04-12 2019-04-09 현대오트론 주식회사 Method for preventing battery discharge and electronic control unit using the same

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JP3666762B2 (en) * 1996-01-29 2005-06-29 古河電気工業株式会社 Battery protection device for automobile
KR200143566Y1 (en) * 1996-12-26 1999-06-15 양재신 Trunk room and glove box control system
KR100254349B1 (en) * 1996-12-27 2000-06-01 정몽규 Car total control circuit

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Publication number Priority date Publication date Assignee Title
KR20140031024A (en) * 2012-09-04 2014-03-12 현대모비스 주식회사 Apparatus and method for stabilizing battery power of electric booster system
KR101388467B1 (en) * 2012-12-20 2014-04-23 현대오트론 주식회사 Apparatus for controlling power of battery
KR20150007882A (en) * 2013-07-12 2015-01-21 현대모비스 주식회사 Method for motor initialization of electric booster braking system
KR20170008383A (en) * 2015-07-13 2017-01-24 현대모비스 주식회사 Apparatus for controlling electro mechanical brake system and method therof
KR101967464B1 (en) 2018-04-12 2019-04-09 현대오트론 주식회사 Method for preventing battery discharge and electronic control unit using the same
US11146082B2 (en) 2018-04-12 2021-10-12 Hyundai Autron Co., Ltd. Method of preventing battery discharge and electronic control unit performing the same

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