KR20050019271A - Method for cranking of hybrid vehicle using hybrid motor - Google Patents

Method for cranking of hybrid vehicle using hybrid motor Download PDF

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Publication number
KR20050019271A
KR20050019271A KR1020030056924A KR20030056924A KR20050019271A KR 20050019271 A KR20050019271 A KR 20050019271A KR 1020030056924 A KR1020030056924 A KR 1020030056924A KR 20030056924 A KR20030056924 A KR 20030056924A KR 20050019271 A KR20050019271 A KR 20050019271A
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South Korea
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engine
motor
starting
hybrid
rotational speed
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KR1020030056924A
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Korean (ko)
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KR100494949B1 (en
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주진호
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현대자동차주식회사
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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
    • B60K6/26—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
    • 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
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • 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
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • 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
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • 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

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

PURPOSE: A starting method using a hybrid motor of a hybrid vehicle is provided to be capable of smooth starting of an engine and to minimize a sense of incompatibility of drivers by detecting the torque change of the motor and stabilizing ignition. CONSTITUTION: A starting method using a hybrid motor of a hybrid vehicle is composed of steps for setting about a starting step by controlling to start cranking the vehicle(S11); deciding the beginning of the starting step by an HCU(Hybrid Control Unit), rotating the hybrid motor by the HCU, and ordering first stage target RPM(Revolution Per Minute) demanded for securing driving force(S12); judging if the engine RPM is over reference value for driving a starting reference timer after starting driving the engine by the first stage target RPM order(S13); deciding if the first stage target RPM is kept over set-retaining time by starting the reference timer(S14); holding the RPM by setting second stage target RPM with regard for the increase degree of the engine RPM from the target RPM in idling the engine(S15); igniting the engine by an engine fuel injection starting order of the hybrid controller after predetermined time while keeping the second stage target RPM(S16,S17); judging if torque of a motor is decreased below a set value by measuring the torque change of the motor by the hybrid controller(S18); judging that engine ignition is completed when the torque of the motor drops down below the set value(S19); making the torque of the motor zero by judging ignition stabilization as the torque of the motor is kept for predetermined time(S20,S21); and completing engine-starting by releasing driving of the motor(S22).

Description

하이브리드 차량의 하이브리드 모터를 이용한 시동방법{METHOD FOR CRANKING OF HYBRID VEHICLE USING HYBRID MOTOR}Starting method using hybrid motor of hybrid vehicle {METHOD FOR CRANKING OF HYBRID VEHICLE USING HYBRID MOTOR}

본 발명은 하이브리드 차량의 시동 방법에 관한 것으로서, 보다 상세하게는 하이브리드 모터에 의한 하이브리드 차량의 부드러운 시동으로 운전자의 시동시 위화감을 최소화 할 수 있는 하이브리드 차량의 하이브리드 모터를 이용한 시동방법에 관한 것이다.The present invention relates to a start method of a hybrid vehicle, and more particularly, to a start method using a hybrid motor of a hybrid vehicle that can minimize the sense of discomfort when the driver starts by smoothly starting the hybrid vehicle by the hybrid motor.

일반적으로 차량의 시동시는 시동 모터에 의해 엔진을 일정 회전수로 회전시키면 엔진 제어기가 연료를 분사하여 엔진을 시동시킨다. In general, when the vehicle is started, the engine controller rotates the engine by a starting speed by the starter motor to inject fuel to start the engine.

이러한 종래 시동 방법은 별도의 제어는 필요하지 않으며 시동 모터는 시동키가 ON되면 일정 회전수를 유지하게 되고, 엔진 제어기가 연료 분사 시점을 판단하여 연료 분사와 공회전 제어를 수행하게 된다.The conventional starting method does not require separate control, and the starter motor maintains a predetermined rotation speed when the starter key is turned on, and the engine controller determines fuel injection timing to perform fuel injection and idle control.

그러나 종래 시동 시스템 및 시동방법은 병렬형 하이브리드 차량에서는 사용할 수 없다. 즉, 병렬형 하이브리드 차량의 경우 운전자의 의지에 의한 시동뿐만 아니라 아이들 스탑(IDLE STOP)의 로직이 사용됨으로써, 다른 차량에 비하여 병렬형 하이브리드 차량은 엔진 시동 회수가 빈번하게 된다. 구체적으로, 상기 아이들 스탑 로직은 엔진 공회전시 엔진을 정지시키고, 운전자가 출발하려는 의지를 보이면 다시 엔진 시동을 통하여 공회전시 연료 소모율을 제로화 하는 방법으로서, 이러한 아이들 스탑 로직이 적용되면 엔진 시동 회수의 빈번함으로 시동 모터의 내구성에 문제가 발생될 수 있는 문제점이 있다.However, conventional starting systems and starting methods cannot be used in parallel hybrid vehicles. That is, in the case of the parallel hybrid vehicle, the idle stop (IDLE STOP) logic is used as well as the starting by the driver's will, so that the number of engine start-ups is more frequent in the parallel hybrid vehicle than in other vehicles. Specifically, the idle stop logic stops the engine when the engine is idle, and when the driver shows a willingness to start, the engine stops the fuel consumption rate at idle when the idle stop logic is applied. As a result, there is a problem that a problem may occur in the durability of the starting motor.

본 발명은 상기 전술한 바와 같은 문제점들을 해결하기 위해 창출된 것으로서, 하이브리드 모터에 의한 하이브리드 차량의 부드러운 시동으로 운전자의 시동시 위화감을 최소화 할 수 있는 하이브리드 차량의 하이브리드 모터를 이용한 시동방법을 제공하는데 그 목적이 있다.The present invention has been made to solve the problems as described above, and provides a starting method using a hybrid motor of a hybrid vehicle that can minimize the sense of discomfort when starting the driver by the soft starting of the hybrid vehicle by the hybrid motor. There is a purpose.

상기 목적을 달성하기 위한 본 발명의 하이브리드 차량의 하이브리드 모터를 이용한 시동방법은, (a) 차량 크랭킹 개시되도록 제어하여 시동 단계로 진입하도록 하는 단계; (b) 상기 시동 단계로의 진입을 하이브리드 제어기(HCU)가 판단하면, 하이브리드 제어기의 제어로 하이브리드 모터를 회전시켜, 구동력 확보에 필요한 1단계 목표 회전수 명령 단계; (c) 상기 1단계 목표 회전수 명령에 의해 엔진 구동 개시후 엔진 RPM이 시동 기준 타이머 구동을 위한 기준 RPM이상인가 여부를 판단하는 단계; (d) 기준 타이머를 시동으로 상기 (b) 단계의 1단계 목표 회전수의 유지시간이 설정치 이상으로 유지되는지 여부를 판단하는 단계; (e) 상기 (d) 단계의 상기 1단계 목표 회전수의 유지시간이 설정치 이상으로 유지됨으로 판단되면, 상기 차량 엔진 공회전시 목표 회전수에서 엔진 회전수 상승 정도를 고려한 2단계 목표 회전수를 설정하여 회전수를 유지하도록 하는 단계; (f) 상기 2단계 목표 회전수를 유지한 상태로 일정 시간후 상기 하이브리드 제어기에 의한 엔진 연료 분사개시 명령으로 엔진 점화를 실시하는 단계; (g) 상기 하이브리드 제어기로써 모터 토크 변화를 측정하여, 모터 토크의 값이 설정값 이하로 떨어지는지 여부를 판단하는 단계; (h) 상기 단계(g)의 모터 토크가 설정값 이하로 떨어지면 엔진 점화가 완료됨으로 판단하는 단계; (i) 상기 단계(h)의 모터 토크가 일정시간 유지됨의 여부를 판단하여, 모터 토크가 일정시간 유지되면 점화 안정화로 판단하여 상기 모터 토크를 제로화하는 단계; 및 (j) 상기 단계(i)의 점화 안정화로 판단되면 모터 구동 해제를 통하여 엔진 시동을 완료하는 단계;를 포함하는 것을 특징으로 한다.Starting method using a hybrid motor of the hybrid vehicle of the present invention for achieving the above object, (a) controlling the vehicle to start cranking to enter the starting step; (b) when the hybrid controller (HCU) determines the entry into the start-up step, by rotating the hybrid motor under the control of the hybrid controller, a first step rotational speed command step required to secure driving force; (c) determining whether the engine RPM is greater than or equal to the reference RPM for starting the reference timer after starting engine driving by the first target rotation speed command; (d) determining whether the holding time of the target rotational speed of the first stage of step (b) is maintained above a set value by starting the reference timer; (e) if it is determined that the holding time of the first target rotational speed of step (d) is maintained above a set value, the second target rotational speed is set in consideration of the degree of increase of the engine rotational speed at the target rotational speed during the vehicle engine idle. To maintain the rotation speed; (f) performing engine ignition by an engine fuel injection start command by the hybrid controller after a predetermined time while maintaining the target rotational speed of the second stage; (g) measuring a change in motor torque with the hybrid controller to determine whether a value of the motor torque falls below a set value; (h) determining that engine ignition is complete when the motor torque of step (g) falls below a set value; (i) determining whether the motor torque of step (h) is maintained for a predetermined time, and if the motor torque is maintained for a predetermined time, determining that ignition is stabilized and zeroing the motor torque; And (j) if it is determined that the ignition stabilization of the step (i) to complete the engine starting by releasing the motor drive; characterized in that it comprises a.

본 발명에 있어서, 상기 (a)단계의 시동 단계로의 진입은, 운전자의 점화키에 의한 시동 요구 및 아이들 스탑 해제로 시동 단계로의 진입을 판단하는 것을 특징으로 한다.In the present invention, the entry into the starting step of step (a) is characterized by determining the entry into the starting step by the start request by the driver's ignition key and the idle stop release.

본 발명에 있어서, 상기 (b)단계의 1단계 목표 회전수는, 엔진에서 설정된 목표 공회전 회전수 + 변속기 유압 관련 장치 구동에 필요한 오일 압력 형성에 필요한 시간지연 극복을 위한 제1부가 회전수 + 흡기 다기관의 적절한 압력 형성을 위한 제2부가 회전수로 설정되는 것을 특징으로 한다.In the present invention, the first rotational speed of the step (b) is a target idle rotational speed set in the engine + a first portion rotational speed + intake for overcoming the time delay required for oil pressure required for driving the transmission hydraulic pressure-related device And the second portion for the proper pressure build-up of the manifold is set at rotational speed.

본 발명에 있어서, 상기 (f) 단계의 2단계 목표 회전수는, 엔진에서 설정된 목표 공회전 회전수 + 엔진 공회전시 목표 회전수에서 점화시 엔진 회전수 상승 정도를 고려한 제3부가 회전수인 것을 특징으로 한다.In the present invention, the target rotational speed of the second stage of the step (f) is a third rotational speed in consideration of the degree of increase in the engine speed at ignition at the target rotational speed set in the engine + the target rotational speed at the engine idle. It is done.

이하 본 발명의 바람직한 실시예에 따른 하이브리드 차량의 하이브리드 모터를 이용한 시동방법을 첨부된 도면을 참조하여 상세히 설명한다. 그러나 본 발명은 이하에서 개시되는 실시예에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예는 본 발명의 개시가 완전하도록 하며, 통상의 지식을 가진자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이다.Hereinafter, a start method using a hybrid motor of a hybrid vehicle according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention and to those skilled in the art to fully understand the scope of the invention. It is provided to inform you.

도 1은 본 발명의 바람직한 실시예에 따른 하이브리드 차량의 하이브리드 모터를 이용한 시동방법을 개략적으로 도시한 흐름도이다.1 is a flowchart schematically illustrating a start method using a hybrid motor of a hybrid vehicle according to an exemplary embodiment of the present invention.

도 1에 도시된 바와 같이, 본 발명에 따른 하이브리드 차량의 하이브리드 모터를 이용한 시동방법을 설명한다.As shown in FIG. 1, a start method using a hybrid motor of a hybrid vehicle according to the present invention will be described.

먼저, 차량 크랭킹 개시되도록 제어하여 시동 단계로 진입하도록 한다.(S11) 이러한 하이브리드 차량의 시동 단계의 진입은 운전자의 점화키에 의한 시동 요구나 아이들 스탑 해제시 시동 로직의 요구로 시동 단계에 진입한다. 상기 아이들 스탑 해제의 로직은 엔진 공회전시 엔진을 정지시키고, 운전자가 출발하려는 의지를 보이면 다시 엔진 시동을 통하여 공회전시 연료 소모율을 제로화 하는 방법을 말한다.First, the vehicle cranking is controlled to enter the start-up step (S11). The start of the start-up phase of the hybrid vehicle enters the start-up phase due to the start request by the driver's ignition key or the start logic when the idle stop is released. do. The idle stop release logic refers to a method of stopping the engine when idling the engine and zeroing the fuel consumption rate at idling by starting the engine again when the driver intends to start.

다음, 상기 시동 단계로의 진입을 하이브리드 제어기(HCU)가 판단하면, 제1단계 목표 회전수로 유지한다.(S12) 이러한 제1단계 목표 회전수는 구동력 확보에 필요한 회전수를 말하는 것으로서, 하이브리드 제어기(HYBRID CONTROL UNIT)의 제어로 하이브리드 모터를 회전시켜 제1단계 목표 회전수로 유지한다. 상기 1단계 목표 회전수는, 엔진에서 설정된 목표 공회전 회전수 + 변속기 유압 관련 장치 구동에 필요한 오일 압력 형성에 필요한 시간지연 극복을 위한 제1부가 회전수 + 흡기 다기관의 적절한 압력 형성을 위한 제2부가 회전수로 설정된다. Next, when the hybrid controller HCU determines the entry into the start-up stage, the hybrid controller HCU maintains the target rotational speed of the first stage. (S12) The first rotational target rotational speed refers to the rotational speed necessary to secure the driving force. The hybrid motor is rotated by the control of the HYBRID CONTROL UNIT to maintain the target rotational speed of the first stage. The first stage rotational speed is a target idle rotational speed set in the engine + a first portion for overcoming a time delay required for oil pressure formation required to drive a transmission hydraulic pressure related device, and a second portion for proper pressure formation of an intake manifold. It is set by the number of revolutions.

상기 제1부가 회전수는 변속기 유압 관련 장치 구동에 필요한 오일 압력 형성에 필요한 시간지연 극복을 위한 것으로서, 구체적으로 설명하면, 아이들 정지후 시동시는 변속기의 구동을 담당하는 오일 펌프 역시 정지해 있다가 엔진 회전과 직결되어 회전하게 된다. 아이들 정지시 변속기의 오일 펌프가 정지해 있기 때문에 변속기의 유압 회로를 구동할 수 있는 유압이 형성되어 있지 않은 상태에서 아이들 스탑이 해제되면 엔진 회전수 상승에 의해 변속기 오일 압력이 형성된다. 초기 오일 압력 형성시부터 변속기 유압관련장치를 구동시키는데 필요한 충분한 오일 압력이 형성되기까지는 시간 지연이 발생하여, 이를 극복하기 위해서는 하이브리드 모터에 의한 초기 시동 목표 회전수를 적절하게 설정하여 변속기 오일 압력시의 시간지연을 최소화 할 수 있다. 이에 따라 상기 제1부가 회전수를 적절하게 설정하여 변속기 오일 압력시의 시간지연을 최소화한다. The first part number of revolutions is to overcome the time delay required to form the oil pressure required to drive the transmission hydraulic pressure-related device, specifically, the oil pump responsible for driving the transmission when starting after idle stop is also stopped. It rotates in direct connection with engine rotation. Since the oil pump of the transmission is stopped when the idle stops, when the idle stop is released without the hydraulic pressure for driving the hydraulic circuit of the transmission, the transmission oil pressure is formed by the engine speed increase. There is a time delay between the initial oil pressure formation and the sufficient oil pressure required to drive the transmission hydraulic pressure-related device.To overcome this problem, the initial starting target rotation speed by the hybrid motor is set appropriately. Time delay can be minimized. Accordingly, the first part sets the rotation speed appropriately to minimize time delay in transmission oil pressure.

상기 제2부가 회전수는 흡기 다기관의 적절한 압력 형성을 위한 것으로서, 구체적으로 설명하면, 하이브리드 모터의 시동의 중요 기능중의 하나인 소음 진동 저감을 위해서는 엔진 흡기 다기관의 절절한 압력 형성 이후 엔진 연소를 개시하는 것이 유리하나, 흡기 다기관의 압력 형성시간은 초기 엔진의 회전수에 따라 영향을 받음으로써, 제2부가 회전수의 적절한 조정을 통하여 흡기 다기관 압력 형성 시간을 적절하게 조절할 수 있다.The second part number of revolutions is for proper pressure formation of the intake manifold. Specifically, in order to reduce noise and vibration, which is one of the important functions of starting the hybrid motor, engine combustion is started after proper pressure formation of the engine intake manifold. It is advantageous, however, that the pressure formation time of the intake manifold is influenced by the initial engine speed, so that the second portion can appropriately adjust the intake manifold pressure formation time through proper adjustment of the rotation speed.

다음, 1단계 목표회전수 명령에 의해 엔진 구동 개시후 엔진 RPM이 시동 기준타이머 구동을 위한 기준 RPM 이상인가 여부를 판단한다.(S13) 이러한 엔진 RPM의 측정은 엔진 시동 준비 여부를 알기 위함이다.Next, it is determined whether the engine RPM is greater than or equal to the reference RPM for starting the start reference timer after the engine driving is started by the first-stage target rotation speed command (S13). The measurement of the engine RPM is to know whether the engine is ready for starting.

이어서, 상기 엔진RPM이 기준 RPM이상이고, 상기 1단계 목표 회전수의 유지시간이 설정치 이상으로 유지됨으로 판단되면(S14), 상기 차량 엔진 공회전시 목표 회전수에서 엔진 회전수 상승 정도를 고려한 2단계 목표 회전수를 설정하여 회전수를 유지하도록 한다.(S15) 상기 2단계 목표 회전수는 엔진에서 설정된 목표 공회전 회전수 + 엔진 공회전시 목표 회전수에서 점화시 엔진 회전수 상승 정도를 고려한 제3부가 회전수로 설정된다.Subsequently, when the engine RPM is greater than or equal to the reference RPM and the maintenance time of the first target rotational speed is determined to be maintained above the set value (S14), the second stage in consideration of the degree of increase of the engine speed at the target rotational speed when the vehicle engine is idle The target rotational speed is set to maintain the rotational speed. (S15) The second target rotational speed is a third part considering the degree of increase of the engine speed at ignition from the target rotational speed set in the engine + the target rotational speed at engine idle. It is set by the number of revolutions.

이러한 2단계 목표 회전수는 1단계 목표 회전수에서 부드럽게 공회전 회전수로 전환시켜 위해 엔진 점화시의 회전수를 설정해 주기 위한 것이다. 즉, 상기 1단계 목표 회전수에 의해 적절한 구동력 확보 및 흡기 다기관의 압력이 형성되면 엔진을 점화시켜 부드럽게 모터에 의한 크랭킹에서 엔진의 공회전으로 전환되도록 해 주어야 한다. 이때 엔진이 점화되면 엔진의 토크 발생에 의해 엔진 회전수가 상승하게 된다. 물론 엔진 점화 순간에도 모터에 의한 목표 회전수 제어는 이루어지므로 엔진 회전수 상승시 모터에 의해 즉시 목표 회전수로 복귀되지만 엔진의 점화에 따른 순간적인 엔진 회전수 상승은 운전자에게 위화감을 발생시키게 됨으로써, 이를 방지하기 위하여 2단계 목표 회전수를 설정한다. The second target rotational speed is for setting the rotational speed during engine ignition in order to smoothly switch from the first target rotational speed to the idle rotational speed. That is, when the appropriate driving force is secured and the pressure of the intake manifold is formed by the target rotational speed of the first stage, the engine should be ignited so as to smoothly switch from cranking by the motor to idling of the engine. At this time, when the engine is ignited, the engine speed is increased by generating torque of the engine. Of course, since the target rotation speed is controlled by the motor even at the moment of engine ignition, the engine is immediately returned to the target rotational speed when the engine speed is increased, but the instantaneous engine speed increase due to the ignition of the engine causes the driver to feel uncomfortable. To prevent this, set the target speed of the second stage.

다음, 상기 2단계 목표 회전수의 유지시간이 일정 시간 이상 유지된 상태로 판단되면(S16), 하이브리드 제어기의 제어에 의한 연료분사개시 명령으로 엔진을 점화하도록 한다.(S17) Next, when it is determined that the holding time of the second target rotational speed is maintained for a predetermined time or more (S16), the engine is ignited by a fuel injection start command under the control of the hybrid controller.

이어서, 상기 하이브리드 제어기로써 모터 토크 변화를 측정하여, 모터 토크의 값이 설정값 이하로 떨어지는지 여부를 판단한다.(S18) Subsequently, the motor torque change is measured by the hybrid controller to determine whether the value of the motor torque falls below a set value (S18).

다음 상기 모터 토크의 값이 설정값 이하로 떨어지는지 여부의 판단하여, 모터 토크값이 설정값 이하로 떨어짐으로 판단되면 엔진 점화가 완료됨으로 판단한다.(S19) 여기서 모터 토크값이 설정값 이하로 떨어질 경우 엔진 점화 완료로 판단함을 설명한다. 상기 하이브리드 제어기에 의한 엔진 연료 분사개시로 시스템 엔진 점화가 개시되면, 기존의 엔진 회전수 제어를 위해 모터가 담당하던 토크를 엔진 점화에 의한 토크가 담당하게 된다. 또한 순간적인 엔진 토크 발생에 의해 엔진의 회전수가 상승하게 되며, 모터는 이 순간 목표 회전수를 유지하기 위하여 모터 토크를 급격히 감소시키게 된다. 이러한 엔진의 점화가 완료되면 엔진의 토크에 의해 엔진 회전수는 유지되고 모터의 토크는 미소한 값을 가져야 된다. 따라서 엔진의 점화 시작후 모터 토크 값을 측정하여 설정값 이하로 떨어지면 엔진 점화가 완료됨으로 판단한다. 이러한 점화 완료 판단 모터 토크는 아이들 정지후 해제 조건 또는 운전자의 점화키에 의한 시동 조건의 각 경우별로 시스템에 따라 적절한 값을 설정할 수 있다.Next, it is determined whether the value of the motor torque falls below the set value, and when it is determined that the motor torque value falls below the set value, it is determined that the engine ignition is completed. Explain that if it falls, the engine ignition is completed. When the system engine ignition is started by starting the engine fuel injection by the hybrid controller, the torque caused by the engine ignition is in charge of the torque that the motor was responsible for controlling the existing engine speed. In addition, the engine speed is increased by instantaneous engine torque generation, and the motor rapidly decreases the motor torque in order to maintain the target speed. When the ignition of the engine is completed, the engine speed is maintained by the torque of the engine, and the torque of the motor should have a small value. Therefore, after starting the engine ignition, the motor torque value is measured and falls below the set value. The ignition completion determination motor torque can set an appropriate value according to the system in each case of the release condition after the idle stop or the start condition by the driver's ignition key.

다음, 상기 단계의 모터 토크가 일정시간 유지됨의 여부를 판단하여(S20), 모터 토크가 일정시간 유지되면 점화 안정화로 판단하여 상기 모터 토크를 제로화한다.(S21) 즉, 점화 완료 판단되면 다시 점화 안정화 판단을 위해 점화 완료 판단 모터 토크가 일정 시간 유지되는지를 모니터링하여 일정 시간동안 유지되면 엔진에 의한 공회전이 가능하다고 판단하여 크랭킹을 완료하고 모터 토크를 제로화한다. 이러한 점화 완료 판단 모터 토크 유지시간 역시 아이들 정지후 해제 조건 혹은 운전자의 점화키에 의한 시동 조건의 각 경우별로 시스템에 따라 적절한 값을 설정할 후 있다.Next, it is determined whether the motor torque of the step is maintained for a predetermined time (S20), and if the motor torque is maintained for a predetermined time, it is determined that the ignition is stabilized and the motor torque is zeroed (S21). For stabilization judgment, the ignition completion judgment is monitored by monitoring whether the motor torque is maintained for a certain time, and when it is maintained for a certain time, it is determined that idling by the engine is possible to complete cranking and zero the motor torque. The ignition completion determination motor torque holding time is also set after the idle stop or the start condition by the driver's ignition key.

마지막으로 상기 단계의 점화 안정화로 판단되면 모터 구동 해제을 통하여 엔진 시동을 완료하도록 한다.(S22)Finally, when it is determined that the ignition stabilization of the step is completed, the engine is started to complete by releasing the motor drive (S22).

전술한 각 단계의 제어를 통하여 하이브리드 차량에서 하이브리드 모터에 의한 엔진 시동으로 부드러운 시동을 가능하게 함으로써, 시동시 운전자가 느끼는 위화감을 최소화 한다.By controlling the above-described steps, smooth starting is possible by starting the engine by the hybrid motor in the hybrid vehicle, thereby minimizing the discomfort felt by the driver at the start.

상기와 같은 본 발명에 따른 하이브리드 차량의 하이브리드 모터를 이용한 시동방법은 다음과 같은 효과를 갖는다.Starting method using a hybrid motor of a hybrid vehicle according to the present invention as described above has the following effects.

하이브리드 차량에서 하이브리드 모터에 의한 엔진의 부드러운 시동이 가능하도록 하여, 시동시 운전자가 느끼는 위화감을 최소화하여 차량의 상품성 향상을 이룬다. In the hybrid vehicle, the engine can be started smoothly by the hybrid motor, thereby minimizing the discomfort felt by the driver at the time of starting, thereby improving the vehicle's marketability.

이상, 본 발명을 도면에 도시된 실시예를 참조하여 설명하였다. 그러나, 본 발명은 이에 한정되지 않고 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명과 균등한 범위에 속하는 다양한 변형예 또는 다른 실시예가 가능하다. 따라서, 본 발명의 진정한 보호범위는 이어지는 특허청구범위에 의해 정해져야 할 것이다.The present invention has been described above with reference to the embodiments shown in the drawings. However, the present invention is not limited thereto, and various modifications or other embodiments falling within the scope equivalent to the present invention are possible by those skilled in the art. Therefore, the true scope of protection of the present invention should be defined by the following claims.

도 1은 본 발명의 바람직한 실시예에 따른 하이브리드 차량의 하이브리드 모터를 이용한 시동방법을 개략적으로 도시한 흐름도.1 is a flow chart schematically showing a starting method using a hybrid motor of a hybrid vehicle according to an embodiment of the present invention.

Claims (4)

(a) 차량 크랭킹 개시되도록 제어하여 시동 단계로 진입하도록 하는 단계;(a) controlling the vehicle to start cranking to enter a start-up phase; (b) 상기 시동 단계로의 진입을 하이브리드 제어기(HCU)가 판단하면, 하이브리드 제어기의 제어로 하이브리드 모터를 회전시켜, 구동력 확보에 필요한 1단계 목표 회전수 명령 단계;(b) when the hybrid controller (HCU) determines the entry into the start-up step, by rotating the hybrid motor under the control of the hybrid controller, a first step rotational speed command step required to secure driving force; (c) 상기 1단계 목표 회전수 명령에 의해 엔진 구동 개시후 엔진 RPM이 시동 기준 타이머 구동을 위한 기준 RPM이상인가 여부를 판단하는 단계;(c) determining whether the engine RPM is greater than or equal to the reference RPM for starting the reference timer after starting engine driving by the first target rotation speed command; (d) 기준 타이머를 시동으로 상기 (b) 단계의 1단계 목표 회전수의 유지시간이 설정치 이상으로 유지되는지 여부를 판단하는 단계;(d) determining whether the holding time of the target rotational speed of the first stage of step (b) is maintained above a set value by starting the reference timer; (e) 상기 (d) 단계의 상기 1단계 목표 회전수의 유지시간이 설정치 이상으로 유지됨으로 판단되면, 상기 차량 엔진 공회전시 목표 회전수에서 엔진 회전수 상승 정도를 고려한 2단계 목표 회전수를 설정하여 회전수를 유지하도록 하는 단계;(e) if it is determined that the holding time of the first target rotational speed of step (d) is maintained above a set value, the second target rotational speed is set in consideration of the degree of increase of the engine rotational speed at the target rotational speed during the vehicle engine idle. To maintain the rotation speed; (f) 상기 2단계 목표 회전수를 유지한 상태로 일정 시간후 상기 하이브리드 제어기에 의한 엔진 연료 분사개시 명령으로 엔진 점화를 실시하는 단계;(f) performing engine ignition by an engine fuel injection start command by the hybrid controller after a predetermined time while maintaining the target rotational speed of the second stage; (g) 상기 하이브리드 제어기로써 모터 토크 변화를 측정하여, 모터 토크의 값이 설정값 이하로 떨어지는지 여부를 판단하는 단계;(g) measuring a change in motor torque with the hybrid controller to determine whether a value of the motor torque falls below a set value; (h) 상기 단계(g)의 모터 토크가 설정값 이하로 떨어지면 엔진 점화가 완료됨으로 판단하는 단계;(h) determining that engine ignition is complete when the motor torque of step (g) falls below a set value; (i) 상기 단계(h)의 모터 토크가 일정시간 유지됨의 여부를 판단하여, 모터 토크가 일정시간 유지되면 점화 안정화로 판단하여 상기 모터 토크를 제로화하는 단계; 및(i) determining whether the motor torque of step (h) is maintained for a predetermined time, and if the motor torque is maintained for a predetermined time, determining that ignition is stabilized and zeroing the motor torque; And (j) 상기 단계(i)의 점화 안정화로 판단되면 모터 구동 해제를 통하여 엔진 시동을 완료하는 단계;를 포함하는 것을 특징으로 하는 하이브리드 차량의 하이브리드 모터를 이용한 시동방법.(j) if it is determined that the ignition stabilization of the step (i) is completed by starting the engine through the motor drive release; starting method using a hybrid motor of a hybrid vehicle, characterized in that it comprises a. 제1항에 있어서,The method of claim 1, 상기 (a)단계의 시동 단계로의 진입은,Entry into the starting step of step (a), 운전자의 점화키에 의한 시동 요구 및 아이들 스탑 해제로 시동 단계로의 진입을 판단하는 것을 특징으로 하는 하이브리드 차량의 하이브리드 모터를 이용한 시동방법.A start method using a hybrid motor of a hybrid vehicle, characterized in that it is determined to enter the start step by the start request by the driver's ignition key and the idle stop release. 제1항에 있어서,The method of claim 1, 상기 (b)단계의 1단계 목표 회전수는, The target rotational speed of step 1 of step (b) is 엔진에서 설정된 목표 공회전 회전수 + 변속기 유압 관련 장치 구동에 필요한 오일 압력 형성에 필요한 시간지연 극복을 위한 제1부가 회전수 + 흡기 다기관의 적절한 압력 형성을 위한 제2부가 회전수로 설정되는 것을 특징으로 하는 하이브리드 차량의 하이브리드 모터를 이용한 시동방법.The target idling speed set in the engine + the first part for overcoming the time delay required for the oil pressure required to drive the transmission hydraulic pressure-related device + the second part for the proper pressure of the intake manifold is set to the number of revolutions Starting method using a hybrid motor of a hybrid vehicle. 제1항에 있어서,The method of claim 1, 상기 (f) 단계의 2단계 목표 회전수는,The second target rotational speed of the step (f), 엔진에서 설정된 목표 공회전 회전수 + 엔진 공회전시 목표 회전수에서 점화시 엔진 회전수 상승 정도를 고려한 제3부가 회전수인 것을 특징으로 하는 하이브리드 차량의 하이브리드 모터를 이용한 시동방법.A method of starting using a hybrid motor of a hybrid vehicle, characterized in that the third part considering the target rotational speed set in the engine + the engine rotational speed in the ignition at the target rotational speed in the engine idle.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100659209B1 (en) * 2004-06-07 2006-12-19 닛산 지도우샤 가부시키가이샤 Vehicle driving force control apparatus and method
KR20180128716A (en) * 2017-05-24 2018-12-04 주식회사 알오씨오토시스템 Muti-functional internal combustion engine system generator for generating electric power
CN114576060A (en) * 2022-03-28 2022-06-03 浙江舟山市匠驱动力技术有限公司 Control method and device for hybrid power starting of motorcycle and electronic equipment

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KR100765600B1 (en) 2006-08-21 2007-10-09 현대자동차주식회사 Engine starting stable method for hybrid vehicle
KR20180070341A (en) * 2016-12-16 2018-06-26 현대자동차주식회사 Hybrid vehicle and method of controlling mode transition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100659209B1 (en) * 2004-06-07 2006-12-19 닛산 지도우샤 가부시키가이샤 Vehicle driving force control apparatus and method
KR20180128716A (en) * 2017-05-24 2018-12-04 주식회사 알오씨오토시스템 Muti-functional internal combustion engine system generator for generating electric power
CN114576060A (en) * 2022-03-28 2022-06-03 浙江舟山市匠驱动力技术有限公司 Control method and device for hybrid power starting of motorcycle and electronic equipment
CN114576060B (en) * 2022-03-28 2024-05-14 江苏埃驱奥新能源科技有限公司 Control method and device for starting hybrid power of motorcycle and electronic equipment

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