KR20080019815A - An apparatus and method for bybrid type vehicle's staring in cool condition - Google Patents

An apparatus and method for bybrid type vehicle's staring in cool condition Download PDF

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KR20080019815A
KR20080019815A KR1020060082203A KR20060082203A KR20080019815A KR 20080019815 A KR20080019815 A KR 20080019815A KR 1020060082203 A KR1020060082203 A KR 1020060082203A KR 20060082203 A KR20060082203 A KR 20060082203A KR 20080019815 A KR20080019815 A KR 20080019815A
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engine
vehicle
motor
clutch
hybrid vehicle
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KR1020060082203A
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Korean (ko)
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김동현
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현대자동차주식회사
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Publication of KR20080019815A publication Critical patent/KR20080019815A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • 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
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

An apparatus and a method for a cold start of a hybrid vehicle are provided to start an engine of the vehicle by operating an additional start motor. A method for a cold start of a hybrid vehicle includes the steps of: measuring a temperature outside the vehicle(ST10); cranking an engine by using an integrated motor(ST20); operating a start motor if the measured temperature outside the vehicle is lower than a predetermined temperature and RPM(Revolutions Per Minute) of the engine is zero(ST30); operating an engine clutch and a damper clutch if the RPM of the start motor is higher than a predetermined value(ST40); and transmitting rotary power of the start motor to the engine(ST50).

Description

하이브리드 차량의 냉간 시동 기구 및 방법{An apparatus and method for bybrid type vehicle's staring in cool condition}An apparatus and method for bybrid type vehicle's staring in cool condition}

도 1은 본 발명에 의한 하이브리드 차량의 냉간 시동 기구의 구성을 나타내는 도면.BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the structure of the cold start mechanism of the hybrid vehicle by this invention.

도 2는 본 발명에 의한 차량의 냉간 시동 방법을 나타내는 플로우 차트.2 is a flowchart illustrating a cold start method of a vehicle according to the present invention.

도 3은 일반적인 상태에서의 본 발명의 시동 상태를 나타내는 도면.3 is a view showing a startup state of the present invention in a general state.

도 4는 냉간 시동시 본 발명의 시동 상태를 나타내는 도면.4 is a view showing a startup state of the present invention during cold startup.

도 5는 냉간 시동시 엔진 회전수에 따른 제어 상태를 나타내는 도면.5 is a view showing a control state according to the engine speed during cold start.

-도면의 주요부분에 대한 부호설명-Code descriptions for the main parts of the drawings

10 : 시동 모터10: starting motor

본 발명은 하이브리드 차량에 관한 것으로서, 특히, 하이브리드 차량의 냉간 시동을 위해 별도의 시동 모터를 설치하고 냉간 시동시 시동 모터를 동작시켜 차량 엔진의 시동을 용이하게 하는 하이브리드 차량의 냉간 시동 기구 및 방법에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hybrid vehicle, and more particularly, to a cold starting mechanism and a method of installing a separate starting motor for cold starting of a hybrid vehicle and operating a starting motor during cold starting to facilitate starting of a vehicle engine. It is about.

종래의 자동차는 주로 가솔린 엔진 구동에 따라 주행되는 자동차이며, 가솔린 엔진 자동차에 의한 환경 오염의 증가로 인하여 전기에 의한 모터 작동에 의하여 엔진이 구동되는 전기 자동차가 개발되고 있다. BACKGROUND ART Conventional automobiles are mainly driven by driving gasoline engines, and electric vehicles driven by electric motors have been developed due to an increase in environmental pollution caused by gasoline engine vehicles.

가솔린 자동차는 배기 가스가 많이 배출되어 환경 오염을 증가시키는 단점이 있으며, 전기 자동차는 환경 오염을 방지할 수 있는 장점은 있으나 배터리에 의하여 구동되기 때문에 오랜 시간 동안 주행할 수 없는 단점이 있다. Gasoline cars have the disadvantage of increasing the environmental pollution by exhausting a lot of exhaust gas, electric vehicles have the advantage of preventing environmental pollution, but there is a disadvantage that can not run for a long time because it is driven by a battery.

상기와 같은 가솔린 자동차와 전기 자동차의 단점을 해결하기 위하여, 가솔린 자동차와 전기 자동차의 기능을 복합적으로 구성한 차량이 바로 하이브리드 자동차이다. In order to solve the disadvantages of the gasoline car and the electric vehicle as described above, a vehicle that combines the functions of the gasoline car and the electric vehicle is a hybrid vehicle.

하이브리드 자동차란 일반 가솔린 엔진 구동 기능과 전기 모터 구동 기능이 내재된 차량으로, 다시 말하자면 필요에 따라 일반 가솔린 자동차로 주행하거나 전기 자동차로 주행할 수 있는 차량을 나타낸다.A hybrid vehicle is a vehicle in which a general gasoline engine driving function and an electric motor driving function are inherent, that is, a vehicle capable of driving a general gasoline vehicle or an electric vehicle as needed.

하이브리드 전기 자동차는 엔진, 알터네이터, 배터리, 모터 등 기존의 가솔린 자동차 및 전기 자동차와는 다른 구성 요소로 이루어지기 때문에, 차량 주행시에 배터리 파워 조건에 따른 엔진 알터네이터 온/오프 제어 등 다양한 구동 방법이 요구된다. Since a hybrid electric vehicle is composed of components different from existing gasoline and electric vehicles such as an engine, an alternator, a battery, and a motor, various driving methods such as engine alternator on / off control according to battery power conditions are required when driving a vehicle. .

하이브리드 전기 자동차의 구동 모드는 가솔린 엔진을 구동시키는 HEV(hybrid Emission Vehicle)모드 즉, 차량을 가솔린 자동차로 구동시키는 모드 와, 가솔린 엔진을 구동시키지 않는 ZEV(Zero Emission Vehicle)모드 즉, 차량을 전기 자동차로 구동시키는 모드가 있으며, 운전가의 구동 모드 선택이나 제어 장치의 상태에 따른 자동 구동 모드 선택에 따라 설정된 구동 모드에 의하여 차량이 구동된다. The driving mode of the hybrid electric vehicle is a hybrid emission vehicle (HEV) mode for driving a gasoline engine, that is, a mode for driving the vehicle as a gasoline vehicle, and a zero emission vehicle (ZEV) mode for not driving a gasoline engine. There is a mode to drive the vehicle, the vehicle is driven by the drive mode set according to the driver's drive mode selection or the automatic drive mode selection according to the state of the control device.

하이브리드 전기 자동차가 HEV 모드로 구동되는 경우 즉, 가솔린 엔진에 의하여 차량이 구동되는 경우에는, 하이브리드 제어 장치(HCU:Hybride Control Unit)가 엔진 제어 장치(ECU:Engine Control Unit)로 엔진 구동 신호를 출력하고, 그에 따라 엔진 제어 장치가 시동 모터를 구동시켜 엔진을 구동시키게 된다. When the hybrid electric vehicle is driven in the HEV mode, that is, when the vehicle is driven by the gasoline engine, the hybrid control unit (HCU) outputs the engine driving signal to the engine control unit (ECU). As a result, the engine controller drives the starter motor to drive the engine.

이때 배터리의 전원을 공급받아 동작하는 통합 모터가 엔진의 구동축에 연결되어 동작하게 된다. 통합 모터는 일반적인 차량의 시동 모터가 아닌 스타터와 알터네이터의 통합형 모터(ISG : Intergrated starter generator)로서, 엔진이 동작할 때는 알터네이터로서 동작하게 된다. At this time, the integrated motor operated by being supplied with the battery power is connected to the driving shaft of the engine to operate. The integrated motor is an integrated motor (ISG: Starter and Alternator) of the starter and the alternator, not the starter of a typical vehicle, and acts as an alternator when the engine is operated.

통합형 모터의 경우 차량 정지 후 엔진 정지, 엔진 시동 후 발전 시 시동 소음 및 엔진 회전수 제어를 위해 여러 가지 제어 방법을 사용하고 있다. In the case of integrated motors, various control methods are used to control the engine after the vehicle stops, start noise during power generation after engine start, and engine speed control.

하이브리드 차량의 경우에도 차량의 냉간 시동시 배출 가스를 적게 하는 것이 중요하다. 따라서, 차량의 냉간 시동 성능을 향상시키기 위해 연료 혼합기를 리치(rich)하게 하거나 시동 모터를 장시간 동작시키는 방법을 사용할 수 없다. Even in a hybrid vehicle, it is important to reduce the emissions during cold start of the vehicle. Therefore, a method of making the fuel mixer rich or operating the starter motor for a long time cannot be used to improve the cold start performance of the vehicle.

통합형 모터의 용량을 증대시키는 방법을 사용할 수 잇으나, 차량 충량의 상승 및 원가의 상승 문제가 있었다. The method of increasing the capacity of the integrated motor can be used, but there are problems of increasing the vehicle filling capacity and the cost.

본 발명은 이와 같은 종래의 제반 문제점을 해결하기 위한 것으로서, 하이브리드 차량의 냉간 시동을 위해 별도의 스타트 모터를 설치하고 냉간 시동시 차량 엔진의 시동을 용이하게 하는 하이브리드 차량의 냉간 시동 기구 및 시동 방법을 제공하는 것을 목적으로 한다. The present invention is to solve such a conventional problem, cold start mechanism and a start method of a hybrid vehicle to install a separate start motor for cold start of the hybrid vehicle and to facilitate the start of the vehicle engine during cold start It aims to provide.

도 1은 본 발명에 의한 하이브리드 차량의 냉간 시동 기구의 구성을 나타내는 도면으로서, 하이브리드 차량에 있어서, 하이브리드 차량의 자동 변속기(3)에 엔진 클러치(4)를 직결하여 설치한 후 엔진 클러치(4)와 자동 변속기(3) 사이에 시동 모터(10)를 추가로 설치하여 구성되어 있음을 도시하고 있다. 1 is a view showing the configuration of a cold start mechanism of a hybrid vehicle according to the present invention. In a hybrid vehicle, the engine clutch 4 is provided after the engine clutch 4 is directly connected to the automatic transmission 3 of the hybrid vehicle. And the starter motor 10 are additionally provided between the automatic transmission 3 and the automatic transmission 3.

도 2는 본 발명에 의한 차량의 냉간 시동 방법을 나타내는 플로우 차트로서, 차량의 외기온을 측정하는 단계(ST10), 통합 모터를 이용하여 엔진을 크랭킹하는 단계(ST20), 상기 단계(ST10)에서 측정된 차량의 외기온이 일정 수준 이하이고 엔진의 회전수가 0 인 경우 시동 모터(10)를 동작하는 단계(ST30), 상기 단계(ST30)에서 동작하는 시동 모터(10)의 회전수가 일정 수준 이상이 되면 엔진 클러치와 댐퍼 클러치를 동작시키는 단계(ST40), 상기 단계(ST40)의 수행에 의해 시동 모터(10)의 회전력이 엔진(1)으로 전달하는 단계(ST50)로 구성되어 있음을 도시하고 있다. FIG. 2 is a flowchart illustrating a cold start method of a vehicle according to the present invention, in which the external air temperature of the vehicle is measured (ST10), the engine is cranked using an integrated motor (ST20), and in the step ST10, FIG. When the measured outside air temperature of the vehicle is lower than or equal to a predetermined level and the engine speed is 0, a step of operating the starter motor 10 (ST30), the number of revolutions of the starter motor 10 operating in the step (ST30) is a predetermined level or more When the engine clutch and the damper clutch are operated (ST40), and the rotational force of the starting motor 10 is transmitted to the engine 1 (ST50) by performing the step (ST40). .

상기 엔진(1)의 회전수가 일정 수준에 도달하면 엔진 클러치(4)와 댐퍼 클러 치(5)를 오프시키는 단계(ST60), 상기 단계(ST60)의 수행 후 엔진이 시동되면 시동 모터(10)의 동작을 정지하는 단계(ST70)를 추가로 포함한다. Turning off the engine clutch 4 and the damper clutch 5 when the rotation speed of the engine 1 reaches a predetermined level (ST60), and starting engine 10 when the engine is started after performing the step ST60. It further includes the step (ST70) to stop the operation of.

상기와 같이 구성된 본 발명의 실시예를 설명하면 다음과 같다.Referring to the embodiment of the present invention configured as described above are as follows.

도면에 도시되어 있는 바와 같이 하이브리드 차량의 동력 기구를 구성함에 있어 하이브리드 차량의 자동 변속기(3)와 엔진(1)의 사이에 엔진 클러치(4)와 댐퍼 클러치(5)를 설치하고, 엔진 클러치(4)와 댐퍼 클러치(5)에는 시동 모터(10)를 추가로 설치하도록 한다. As shown in the figure, in configuring the power mechanism of the hybrid vehicle, an engine clutch 4 and a damper clutch 5 are provided between the automatic transmission 3 and the engine 1 of the hybrid vehicle, and the engine clutch ( 4) and the damper clutch (5) to further install a starting motor (10).

평상시에는 도 3에 도시되어 있는 바와 같이 엔진(1)의 시동시에는 차량의 배터리에서 공급되는 전원을 이용하여 동작하는 통합 모터(2)에 의해 엔진(1)이 시동된다. Normally, the engine 1 is started by the integrated motor 2 which operates using the power supplied from the battery of the vehicle at the time of starting the engine 1, as shown in FIG.

그러나, 차량 주위의 온도가 극히 낮은 냉간 시동시에는 오일의 점도가 낮아져 엔진 시동이 어려우므로 다음과 같이 엔진이 시동되도록 한다. However, during cold start, when the temperature around the vehicle is extremely low, the viscosity of the oil is lowered, making it difficult to start the engine.

우선, 차량 주위의 외기온을 측정하도록 한다(ST10). 또한, 차량의 엔진 시동이 필요한 순간이므로 통합 모터(2)를 동작시켜 엔진을 크랭킹하도록 한다(ST20). First, the outside air temperature around the vehicle is measured (ST10). In addition, since the engine is required to start the engine, the integrated motor 2 is operated to crank the engine (ST20).

이때 측정된 외기온이 일정 수준 이하(예 영하 20℃ 이하)인 경우에는 엔진 오일의 점도가 높아져 엔진 시동이 어려운 상태이다. 상기 단계(ST20)의 수행에 의해 엔진이 시동되지 않아 엔진 회전수가 0인 것으로 판단되면, 통합 모터(2)와는 별도로 설치된 시동 모터(10)가 동작되도록 한다(ST30). 엔진 시동이 이루어져야 하므로 연료 분사등의 엔진 제어는 실시된다. At this time, if the measured outside air temperature is below a certain level (eg, below 20 ° C.), the viscosity of the engine oil is high, so that the engine is difficult to start. When it is determined that the engine speed is 0 because the engine is not started by performing the step ST20, the starting motor 10 installed separately from the integrated motor 2 is operated (ST30). Since the engine must be started, engine control such as fuel injection is performed.

시동 모터(10)가 동작을 개시한 후, 시동 모터(10)의 회전수가 일정 수준 이상(예 500rpm)으로 상승되면 엔진 클러치와 댐퍼 클러치를 동작(ST40)되도록 하여, 도 3에 도시되어 있는 바와 같이 시동 모터(10)의 회전력이 엔진(1)으로 전달될 수 있도록 한다(ST50). After the start motor 10 starts to operate, when the rotation speed of the start motor 10 rises above a predetermined level (for example, 500 rpm), the engine clutch and the damper clutch are operated (ST40), as shown in FIG. 3. As described above, the rotational force of the starting motor 10 may be transmitted to the engine 1 (ST50).

시동 모터(10)의 회전력이 엔진으로 전달되면 통합 모터(2)의 회전력과 시동 모터(10)의 회전력이 서로 합쳐져 엔진 오일의 점도가 낮은 상태에서도 엔진의 시동이 이루어질 수 있게 된다. When the rotational force of the starter motor 10 is transmitted to the engine, the rotational force of the integrated motor 2 and the rotational force of the starter motor 10 are combined with each other so that the engine can be started even in a state where the viscosity of the engine oil is low.

시동 모터(10)의 회전력과 통합 모터(2)의 회전력이 서로 합쳐지게 되므로, 통합 모터(2)의 토오크 용량은 시동 모터의 토오크 보다 작은 용량을 사용하여도 무방하다. Since the rotational force of the starting motor 10 and the rotational force of the integrated motor 2 are combined with each other, the torque capacity of the integrated motor 2 may be smaller than the torque of the starting motor.

도 5에 도시되어 있는 바와 같이, 통합 모터(2)와 시동 모터(10)에 의해 엔진 회전수가 1차 목표 회전수에 도달하게 된 상태에서는 엔진 클러치(4)와 댐퍼 클러치(5)의 동작을 정지(ST60)시켜 시동 모터(10)의 회전력이 전달되지 않게 하여, 통합 모터(2)의 회전력만으로 엔진 회전수가 2차 목표 회전수, 즉 엔진 시동이 이루어지도록 한다. 이때 시동 모터(10)의 동작은 정지되도록 한다(ST70). As shown in FIG. 5, the engine clutch 4 and the damper clutch 5 are operated when the engine speed reaches the primary target speed by the integrated motor 2 and the starting motor 10. By stopping (ST60) so that the rotational force of the starter motor 10 is not transmitted, the engine rotational speed is achieved only by the rotational force of the integrated motor 2, that is, the engine start. At this time, the operation of the starting motor 10 is stopped (ST70).

엔진 회전수가 2차 목표 회전수 즉, 엔진 시동이 이루어지면 통합 모터(2)의 엔진 시동 기능이 정지하고 발전기로서의 기능이 시작되도록 하여 차량 배터리가 충전되도록 하고, 차량은 운전자의 조작에 의해 주행을 하도록 한다. When the engine speed is the second target speed, that is, the engine is started, the engine start function of the integrated motor 2 is stopped and the function as a generator is started so that the vehicle battery is charged, and the vehicle is driven by the driver's operation. Do it.

상기와 같이 구성된 본 발명은, 하이브리드 차량의 냉간 시동을 위해 별도의 시동 모터를 설치하고 냉간 시동시 시동 모터를 동작시켜 차량 엔진의 시동을 용이하게 하는 효과가 있다.The present invention configured as described above has an effect of facilitating the starting of the vehicle engine by installing a separate starting motor for cold starting of the hybrid vehicle and operating the starting motor during cold starting.

Claims (3)

하이브리드 차량에 있어서, 하이브리드 차량의 자동 변속기(3)에 엔진 클러치(4)를 직결하여 설치한 후 엔진 클러치(4)와 자동 변속기(3) 사이에 시동 모터(10)를 추가로 설치하여 구성되는 것을 특징으로 하는 하이브리드 차량의 냉간 시동 기구.In the hybrid vehicle, the engine clutch 4 is directly connected to the automatic transmission 3 of the hybrid vehicle, and the starting motor 10 is additionally installed between the engine clutch 4 and the automatic transmission 3. Cold start mechanism of a hybrid vehicle, characterized in that. 차량의 외기온을 측정하는 단계(ST10), 통합 모터를 이용하여 엔진을 크랭킹하는 단계(ST20), 상기 단계(ST10)에서 측정된 차량의 외기온이 일정 수준 이하이고 엔진의 회전수가 0 인 경우 시동 모터(10)를 동작하는 단계(ST30), 상기 단계(ST30)에서 동작하는 시동 모터(10)의 회전수가 일정 수준 이상이 되면 엔진 클러치와 댐퍼 클러치를 동작시키는 단계(ST40), 상기 단계(ST40)의 수행에 의해 시동 모터(10)의 회전력이 엔진(1)으로 전달하는 단계(ST50)로 구성되는 것을 특징으로 하는 하이브리드 차량의 냉간 시동 방법. Measuring the outside air temperature of the vehicle (ST10), cranking the engine using the integrated motor (ST20), starting when the outside air temperature of the vehicle measured in the step (ST10) is below a predetermined level and the engine speed is zero Operating the motor 10 (ST30), operating the engine clutch and the damper clutch when the rotation speed of the starting motor 10 operating in the step ST30 is higher than a predetermined level (ST40), the step (ST40) Cold start method of a hybrid vehicle, characterized in that it comprises a step (ST50) of transmitting the rotational force of the starting motor (10) to the engine (1) by performing. 제 2 항에 있어서, 상기 엔진(1)의 회전수가 일정 수준에 도달하면 엔진 클러치(4)와 댐퍼 클러치(5)를 오프시키는 단계(ST60), 상기 단계(ST60)의 수행 후 엔진이 시동되면 시동 모터(10)의 동작을 정지하는 단계(ST70)를 추가로 포함하여 구성되는 것을 특징으로 하는 하이브리드 차량의 냉간 시동 방법. The method of claim 2, further comprising: turning off the engine clutch 4 and the damper clutch 5 when the rotation speed of the engine 1 reaches a predetermined level (ST60), and when the engine is started after the step ST60 is performed. Cold start method of a hybrid vehicle, characterized in that it further comprises the step (ST70) of stopping the operation of the starting motor (10).
KR1020060082203A 2006-08-29 2006-08-29 An apparatus and method for bybrid type vehicle's staring in cool condition KR20080019815A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101028185B1 (en) * 2009-03-18 2011-04-11 현대자동차주식회사 Starting Method for Hybrid Vehicle in Cold State
US20150166041A1 (en) * 2013-12-13 2015-06-18 Toyota Jidosha Kabushiki Kaisha Hybrid vehicle
KR20190046323A (en) * 2017-10-26 2019-05-07 현대자동차주식회사 Sequential Start type Engine Cold Start Method and Hybrid Electric Vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101028185B1 (en) * 2009-03-18 2011-04-11 현대자동차주식회사 Starting Method for Hybrid Vehicle in Cold State
US20150166041A1 (en) * 2013-12-13 2015-06-18 Toyota Jidosha Kabushiki Kaisha Hybrid vehicle
US9783184B2 (en) * 2013-12-13 2017-10-10 Toyota Jidosha Kabushiki Kaisha Hybrid vehicle which supplies electric power from an external power source to a rotary electric machine
KR20190046323A (en) * 2017-10-26 2019-05-07 현대자동차주식회사 Sequential Start type Engine Cold Start Method and Hybrid Electric Vehicle

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