WO2015146773A1 - Hybrid vehicle, and control method therefor - Google Patents

Hybrid vehicle, and control method therefor Download PDF

Info

Publication number
WO2015146773A1
WO2015146773A1 PCT/JP2015/058218 JP2015058218W WO2015146773A1 WO 2015146773 A1 WO2015146773 A1 WO 2015146773A1 JP 2015058218 W JP2015058218 W JP 2015058218W WO 2015146773 A1 WO2015146773 A1 WO 2015146773A1
Authority
WO
WIPO (PCT)
Prior art keywords
hybrid vehicle
engine
motor generator
control unit
limp home
Prior art date
Application number
PCT/JP2015/058218
Other languages
French (fr)
Japanese (ja)
Inventor
治雄 鈴木
洋紀 瀬戸
Original Assignee
いすゞ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Publication of WO2015146773A1 publication Critical patent/WO2015146773A1/en

Links

Images

Classifications

    • 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
    • B60K6/42—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 the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • 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
    • B60K6/38—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 driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/50—Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
    • 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D2041/227—Limping Home, i.e. taking specific engine control measures at abnormal conditions
    • 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
    • Y02T10/62—Hybrid vehicles

Definitions

  • the present invention relates to a hybrid vehicle and a control method thereof, and more particularly, to a hybrid vehicle and a control method thereof that can shift to a limp home mode more safely than in the past.
  • HEV hybrid vehicle
  • the extent of the failure when the engine fails Accordingly, the hybrid system itself is stopped while shifting to a limp home mode in which the engine is stopped or the output is limited.
  • An object of the present invention is to provide a hybrid vehicle capable of shifting to a limp home mode more safely than before in the event of an engine failure and a control method therefor.
  • the hybrid vehicle according to the present invention that achieves the above object includes a hybrid system that uses at least one of a motor generator and an engine connected to a battery as a drive source, and stops or outputs the engine according to a failure diagnosis result of the engine.
  • a hybrid vehicle comprising a limp home control unit for limiting and a control unit for controlling the hybrid system and the limp home control unit
  • the control unit is configured to stop or limit the output of the engine by the limp home control unit.
  • the motor generator bears all or part of the driving force of the hybrid vehicle.
  • the hybrid vehicle control method of the present invention that achieves the above object is a hybrid vehicle control method including a hybrid system that uses at least one of a motor generator and an engine connected to a battery as a drive source, When the engine is stopped or output is limited according to the engine failure diagnosis result, the motor generator is caused to bear all or part of the driving force of the hybrid vehicle.
  • the motor generator bears all or part of the driving force of the hybrid vehicle when the engine fails, it is possible to avoid sudden deceleration of the hybrid vehicle. It is possible to shift to the limp home mode more safely.
  • FIG. 1 is a configuration diagram of a hybrid vehicle according to an embodiment of the present invention.
  • FIG. 2 is a flowchart for explaining a hybrid vehicle control method according to the embodiment of the present invention.
  • FIG. 1 shows a hybrid vehicle according to an embodiment of the present invention.
  • This hybrid vehicle (hereinafter referred to as “HEV”) 1 includes a diesel engine 5 and a motor generator 6 that are connected via a transmission 4 to an output shaft 3 that transmits a driving force to a pair of left and right drive wheels 2 and 2. And a hybrid system 9 having a battery 8 electrically connected to the motor generator 6 through an inverter 7. A wet multi-plate clutch 10 and a fluid coupling 11 are sequentially provided between the transmission 4 and the diesel engine 5. A motor clutch 12 that connects and disconnects the driving force is interposed between the transmission 4 and the motor generator 6.
  • the HEV 1 is equipped with a limp home control unit 13.
  • the limp home control unit 13 has a function of performing a failure diagnosis of the diesel engine 5 and shifting the HEV 1 to the limp home mode based on the degree of the failure.
  • the engine is stopped, while a minor failure such as a damaged part of the diesel engine 5 is detected.
  • the engine output is limited to a preset level.
  • the hybrid system 9 and the limp home control unit 13 are connected to the ECU 14 that is a control means through a signal line (indicated by a one-dot chain line).
  • the limp home control unit 13 and the ECU 14 are separated from each other, but both may be configured integrally.
  • the ECU 14 determines whether or not the HEV 1 has shifted to the limp home mode through the limp home control unit 13 (S10), and when the diesel engine 5 is stopped or the output is limited by shifting to the limp home mode.
  • the clutch 12 is connected and the motor generator 6 is rotationally driven (S20), thereby assisting all or part of the driving force transmitted from the transmission 4 to the output shaft 3 (S30).
  • the magnitude of the assist by the motor generator 6 depends on the degree of failure of the diesel engine 5. For example, when the engine is stopped, the assist is performed at the output limit of the motor generator 6, while when the engine output is limited, the diesel engine 5 Assists so that the output can be maintained at a preset level in the limp home mode.
  • HEV1 sudden deceleration of HEV1 can be avoided in the event of an engine failure, so it is possible to shift to the limp home mode more safely than before. Further, during the limp home mode, the HEV 1 is driven by the driving force of the motor generator 6, so that the safety of the occupant can be further improved.
  • the hybrid vehicle of the present invention and the control method thereof are suitably implemented when traveling on a highway where sudden deceleration of HEV1 is particularly problematic, for example, traveling at a speed of 60 km / h (the legal maximum speed on ordinary roads) or higher. Is done.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

In a HEV (1), when a limp-home control unit (13) stops or restricts the output of a diesel engine (5) to cause the HEV (1) to transition into a limp-home mode, an ECU (14) sets a motor clutch (12) in a contact state, and rotationally drives a motor generator (6) to provide all or a portion of the driving force transmitted from a transmission (4) to an output shaft (3).

Description

ハイブリッド車両及びその制御方法Hybrid vehicle and control method thereof
　本発明はハイブリッド車両及びその制御方法に関し、更に詳しくは、従来よりも安全にリンプホームモードに移行することができるハイブリッド車両及びその制御方法に関する。 The present invention relates to a hybrid vehicle and a control method thereof, and more particularly, to a hybrid vehicle and a control method thereof that can shift to a limp home mode more safely than in the past.
　近年の車両には、エンジンやトランスミッションの故障により正常な走行が不可能となった場合には、例えば日本出願の特開２０１３－１３５０号公報に記載されているように、その故障を拡大させることなく最小限の運転条件での走行を可能にする、いわゆるリンプホームモードが実装されている。 In recent vehicles, when normal running is impossible due to a failure of the engine or transmission, the failure is expanded as described in Japanese Patent Application Laid-Open No. 2013-1350, for example. A so-called limp home mode is implemented, which allows the vehicle to travel with minimal operating conditions.
　エンジンが発生する駆動力の少なくとも一部を、バッテリーを電源とする電動発電機で代替するハイブリッドシステムを備えたハイブリッド車両（以下「ＨＥＶ」という。）においては、エンジンの故障時には、その故障の程度に応じてエンジンを停止又は出力を制限するリンプホームモードに移行するとともに、ハイブリッドシステム自体を停止させることが行われている。 In a hybrid vehicle (hereinafter referred to as “HEV”) having a hybrid system in which at least a part of the driving force generated by the engine is replaced by a motor generator using a battery as a power source, the extent of the failure when the engine fails Accordingly, the hybrid system itself is stopped while shifting to a limp home mode in which the engine is stopped or the output is limited.
　しかしながら、ＨＥＶが、特に高速道路での走行中にリンプホームモードに移行すると、ＨＥＶが急減速して運転が困難となり、乗員が危険にさらされるおそれがある。 However, if the HEV shifts to the limp home mode particularly while driving on a highway, the HEV decelerates suddenly, making it difficult to drive and there is a risk of occupants being in danger.
日本出願の特開２０１３－１３５０号公報Japanese Patent Application Laid-Open No. 2013-1350
　本発明の目的は、エンジンの故障時において、従来よりも安全にリンプホームモードに移行することができるハイブリッド車両及びその制御方法を提供することにある。 An object of the present invention is to provide a hybrid vehicle capable of shifting to a limp home mode more safely than before in the event of an engine failure and a control method therefor.
　上記の目的を達成する本発明のハイブリッド車両は、バッテリーに接続された電動発電機及びエンジンの少なくとも一方を駆動源とするハイブリッドシステムと、前記エンジンの故障診断結果に応じて該エンジンを停止又は出力制限するリンプホーム制御部と、前記ハイブリッドシステム及びリンプホーム制御部を制御する制御手段とを備えたハイブリッド車両において、前記制御手段は、前記リンプホーム制御部が前記エンジンを停止又は出力制限したときは、前記電動発電機に前記ハイブリッド車両の駆動力の全部又は一部を負担させることを特徴とするものである。 The hybrid vehicle according to the present invention that achieves the above object includes a hybrid system that uses at least one of a motor generator and an engine connected to a battery as a drive source, and stops or outputs the engine according to a failure diagnosis result of the engine. In a hybrid vehicle comprising a limp home control unit for limiting and a control unit for controlling the hybrid system and the limp home control unit, the control unit is configured to stop or limit the output of the engine by the limp home control unit. The motor generator bears all or part of the driving force of the hybrid vehicle.
　また、上記の目的を達成する本発明のハイブリッド車両の制御方法は、バッテリーに接続された電動発電機及びエンジンの少なくとも一方を駆動源とするハイブリッドシステムを備えたハイブリッド車両の制御方法であって、前記エンジンの故障診断結果に応じて該エンジンを停止又は出力制限したときに、前記電動発電機に前記ハイブリッド車両の駆動力の全部又は一部を負担させることを特徴とするものである。 The hybrid vehicle control method of the present invention that achieves the above object is a hybrid vehicle control method including a hybrid system that uses at least one of a motor generator and an engine connected to a battery as a drive source, When the engine is stopped or output is limited according to the engine failure diagnosis result, the motor generator is caused to bear all or part of the driving force of the hybrid vehicle.
　本発明のハイブリッド車両及びその制御方法によれば、エンジンの故障時に電動発電機によりハイブリッド車両の駆動力の全部又は一部を負担するようにしたので、ハイブリッド車両の急減速を回避できるため、従来よりも安全にリンプホームモードへ移行することができる。 According to the hybrid vehicle of the present invention and the control method thereof, since the motor generator bears all or part of the driving force of the hybrid vehicle when the engine fails, it is possible to avoid sudden deceleration of the hybrid vehicle. It is possible to shift to the limp home mode more safely.
図１は、本発明の実施形態からなるハイブリッド車両の構成図である。FIG. 1 is a configuration diagram of a hybrid vehicle according to an embodiment of the present invention. 図２は、本発明の実施形態からなるハイブリッド車両の制御方法を説明するフロー図である。FIG. 2 is a flowchart for explaining a hybrid vehicle control method according to the embodiment of the present invention.
　以下に、本発明の実施の形態について、図面を参照して説明する。図１は、本発明の実施形態からなるハイブリッド車両を示す。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a hybrid vehicle according to an embodiment of the present invention.
　このハイブリッド車両（以下、「ＨＥＶ」という。）１は、左右一対の駆動輪２、２に駆動力を伝達する出力軸３に、変速機４を介して連結するディーゼルエンジン５及び電動発電機６と、その電動発電機６にインバータ７を通じて電気的に接続するバッテリー８とを有するハイブリッドシステム９を備えている。変速機４とディーゼルエンジン５との間には、湿式多板クラッチ１０及び流体継手１１が順に設けられている。また、変速機４と電動発電機６との間には、駆動力を断接するモータ用クラッチ１２が介設されている。 This hybrid vehicle (hereinafter referred to as “HEV”) 1 includes a diesel engine 5 and a motor generator 6 that are connected via a transmission 4 to an output shaft 3 that transmits a driving force to a pair of left and right drive wheels 2 and 2. And a hybrid system 9 having a battery 8 electrically connected to the motor generator 6 through an inverter 7. A wet multi-plate clutch 10 and a fluid coupling 11 are sequentially provided between the transmission 4 and the diesel engine 5. A motor clutch 12 that connects and disconnects the driving force is interposed between the transmission 4 and the motor generator 6.
　更に、ＨＥＶ１には、リンプホーム制御部１３が装備されている。このリンプホーム制御部１３は、ディーゼルエンジン５の故障診断を行い、その故障の程度に基づいてＨＥＶ１をリンプホームモードへ移行させる機能を有している。 Furthermore, the HEV 1 is equipped with a limp home control unit 13. The limp home control unit 13 has a function of performing a failure diagnosis of the diesel engine 5 and shifting the HEV 1 to the limp home mode based on the degree of the failure.
　具体的なリンプホームモードの内容としては、ディーゼルエンジン５に火災が発生したような重度の故障の場合にはエンジンが停止される一方で、ディーゼルエンジン５の部品が損傷したような軽度の故障の場合には、エンジン出力が予め設定されたレベルに制限される。 As a specific content of the limp home mode, in the case of a severe failure such as a fire occurring in the diesel engine 5, the engine is stopped, while a minor failure such as a damaged part of the diesel engine 5 is detected. In some cases, the engine output is limited to a preset level.
　上記のハイブリッドシステム９及びリンプホーム制御部１３は、制御手段であるＥＣＵ１４に信号線（一点鎖線で示す）を通じて接続されている。 The hybrid system 9 and the limp home control unit 13 are connected to the ECU 14 that is a control means through a signal line (indicated by a one-dot chain line).
　なお、図１ではリンプホーム制御部１３とＥＣＵ１４を別体としているが、両者を一体的に構成しても良い。 In FIG. 1, the limp home control unit 13 and the ECU 14 are separated from each other, but both may be configured integrally.
　このようなＨＥＶ１におけるＥＣＵ１４による制御方法を、図２に基づいて以下に説明する。 The control method by ECU14 in such HEV1 is demonstrated below based on FIG.
　ＥＣＵ１４は、リンプホーム制御部１３を通じて、ＨＥＶ１がリンプホームモードに移行したか否かを判定し（Ｓ１０）、リンプホームモードに移行してディーゼルエンジン５が停止又は出力制限された場合には、モータ用クラッチ１２を接続し、かつ電動発電機６を回転駆動させることで（Ｓ２０）、変速機４から出力軸３に伝達される駆動力の全部又は一部をアシストする（Ｓ３０）。 The ECU 14 determines whether or not the HEV 1 has shifted to the limp home mode through the limp home control unit 13 (S10), and when the diesel engine 5 is stopped or the output is limited by shifting to the limp home mode. The clutch 12 is connected and the motor generator 6 is rotationally driven (S20), thereby assisting all or part of the driving force transmitted from the transmission 4 to the output shaft 3 (S30).
　この電動発電機６によるアシストの大きさは、ディーゼルエンジン５の故障の程度に依存し、例えばエンジン停止時には、電動発電機６の出力限界でアシストする一方で、エンジン出力の制限時には、ディーゼルエンジン５の出力がリンプホームモードで予め設定されたレベルを維持できるようにアシストする。 The magnitude of the assist by the motor generator 6 depends on the degree of failure of the diesel engine 5. For example, when the engine is stopped, the assist is performed at the output limit of the motor generator 6, while when the engine output is limited, the diesel engine 5 Assists so that the output can be maintained at a preset level in the limp home mode.
　このようにすることで、エンジンの故障時にＨＥＶ１の急減速を回避できるので、従来よりも安全にリンプホームモードに移行することができるのである。また、リンプホームモード中においては、電動発電機６の駆動力でＨＥＶ１を運転するので、更に乗員の安全性を向上することができる。 By doing so, sudden deceleration of HEV1 can be avoided in the event of an engine failure, so it is possible to shift to the limp home mode more safely than before. Further, during the limp home mode, the HEV 1 is driven by the driving force of the motor generator 6, so that the safety of the occupant can be further improved.
　本発明のハイブリッド車両及びその制御方法は、ＨＥＶ１の急減速が特に問題となる高速道路での走行時、例えば６０ｋｍ／ｈ（一般道における法定最高速度）以上の速度での走行時において好適に実施される。 The hybrid vehicle of the present invention and the control method thereof are suitably implemented when traveling on a highway where sudden deceleration of HEV1 is particularly problematic, for example, traveling at a speed of 60 km / h (the legal maximum speed on ordinary roads) or higher. Is done.
１　ＨＥＶ
３　出力軸
４　変速機
５　ディーゼルエンジン
６　電動発電機
９　ハイブリッドシステム
１３　リンプホーム制御部
１４　ＥＣＵ 1 HEV
3 Output shaft 4 Transmission 5 Diesel engine 6 Motor generator 9 Hybrid system 13 Limp home control unit 14 ECU

Claims (3)

  1. 　バッテリーに接続された電動発電機及びエンジンの少なくとも一方を駆動源とするハイブリッドシステムと、前記エンジンの故障診断結果に応じて該エンジンを停止又は出力制限するリンプホーム制御部と、前記ハイブリッドシステム及びリンプホーム制御部を制御する制御手段とを備えたハイブリッド車両において、
    　前記制御手段は、前記リンプホーム制御部が前記エンジンを停止又は出力制限したときは、前記電動発電機に前記ハイブリッド車両の駆動力の全部又は一部を負担させることを特徴とするハイブリッド車両。     A hybrid system using at least one of a motor generator and an engine connected to a battery as a drive source, a limp home control unit for stopping or limiting output of the engine according to a failure diagnosis result of the engine, the hybrid system and the limp In a hybrid vehicle comprising a control means for controlling the home control unit,
    The control means causes the motor generator to bear all or part of the driving force of the hybrid vehicle when the limp home control unit stops or limits the output of the engine.
  2. 　前記制御手段は、前記ハイブリッド車両が６０ｋｍ／ｈ以上の速度で走行中である場合に、前記リンプホーム制御部が前記エンジンを停止又は出力制限したときは、前記電動発電機に前記ハイブリッド車両の駆動力の全部又は一部を負担させる請求項１に記載のハイブリッド車両。 When the hybrid vehicle is traveling at a speed of 60 km / h or more and the limp home control unit stops or limits the output of the engine, the control means drives the hybrid vehicle to the motor generator. The hybrid vehicle according to claim 1, wherein all or part of the force is borne.
  3. 　バッテリーに接続された電動発電機及びエンジンの少なくとも一方を駆動源とするハイブリッドシステムを備えたハイブリッド車両の制御方法であって、
    　前記エンジンの故障診断結果に応じて該エンジンを停止又は出力制限したときに、
    　前記電動発電機に前記ハイブリッド車両の駆動力の全部又は一部を負担させることを特徴とするハイブリッド車両の制御方法。       A method for controlling a hybrid vehicle including a hybrid system using at least one of a motor generator and an engine connected to a battery as a drive source,
    When the engine is stopped or output is limited according to the engine failure diagnosis result,
    A method for controlling a hybrid vehicle, comprising causing the motor generator to bear all or part of the driving force of the hybrid vehicle.
PCT/JP2015/058218 2014-03-24 2015-03-19 Hybrid vehicle, and control method therefor WO2015146773A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-060216 2014-03-24
JP2014060216A JP2015182576A (en) 2014-03-24 2014-03-24 Hybrid vehicle and control method therefor

Publications (1)

Publication Number Publication Date
WO2015146773A1 true WO2015146773A1 (en) 2015-10-01

Family

ID=54195294

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/058218 WO2015146773A1 (en) 2014-03-24 2015-03-19 Hybrid vehicle, and control method therefor

Country Status (2)

Country Link
JP (1) JP2015182576A (en)
WO (1) WO2015146773A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111267634A (en) * 2018-12-04 2020-06-12 长沙智能驾驶研究院有限公司 Vehicle control method and system, electronic device, and computer storage medium

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101795299B1 (en) 2016-09-08 2017-12-01 현대자동차주식회사 Method for Driving Performance Guarantee of Engine and Hybrid Electric Vehicle thereof
KR102394863B1 (en) 2017-12-08 2022-05-06 현대자동차주식회사 Method for Running Hold with Fail-Safe Condition and Hybrid Electric Vehicle thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009298301A (en) * 2008-06-13 2009-12-24 Toyota Motor Corp Vehicle and control method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002166735A (en) * 2000-11-22 2002-06-11 Shenzhen Minga Environmental Protection Vehicle Co Ltd Composite electric automobile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009298301A (en) * 2008-06-13 2009-12-24 Toyota Motor Corp Vehicle and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111267634A (en) * 2018-12-04 2020-06-12 长沙智能驾驶研究院有限公司 Vehicle control method and system, electronic device, and computer storage medium

Also Published As

Publication number Publication date
JP2015182576A (en) 2015-10-22

Similar Documents

Publication Publication Date Title
JP5348662B2 (en) Method for correcting clutch characteristics of hybrid vehicle
JP2007131293A (en) Fail safety control system between control machines of hybrid vehicle
US9199637B1 (en) Engine autostop control system and method for hybrid powertrain
JP2011110943A (en) Controller for vehicle drive system
JP2010132257A (en) Fail-safe control method by fail-safe oil pump control unit for hybrid vehicle
CN104228539A (en) Device for controlling fail-safe of hybrid vehicle and method thereof
JP2013028208A (en) Drive control device for vehicle and method of controlling the same
JP2007049867A (en) Vehicle control system
US8499866B2 (en) Device and method for operating a drive having an electrically drivable axle
WO2015146773A1 (en) Hybrid vehicle, and control method therefor
US8996221B2 (en) Method for traction control in a motor vehicle, and control system for carrying out the method
JP2007261415A (en) Control device for hybrid vehicle
US11453386B2 (en) Hybrid drivetrain for a hybrid-driven vehicle and method for same
WO2015146776A1 (en) Hybrid vehicle, and control method therefor
JP5531730B2 (en) Vehicle control device
JP5533682B2 (en) Fail-safe device
JP2021020566A (en) vehicle
JP2014189136A (en) Vehicle high voltage system controller
WO2015146771A1 (en) Hybrid vehicle, and hybrid-vehicle control method
JP5792430B2 (en) Vehicle control device
JP5189207B2 (en) Holding method of brake engagement independent of driver after collision
JP2016063597A (en) Drive control device
JP2016031631A (en) Vehicle control device
JP2015055163A (en) Vehicle
JP2006335176A (en) Traveling mode controller for hybrid vehicle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15770089

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15770089

Country of ref document: EP

Kind code of ref document: A1