CN111278700A - 混合动力车辆的控制方法及控制装置 - Google Patents
混合动力车辆的控制方法及控制装置 Download PDFInfo
- Publication number
- CN111278700A CN111278700A CN201780095174.2A CN201780095174A CN111278700A CN 111278700 A CN111278700 A CN 111278700A CN 201780095174 A CN201780095174 A CN 201780095174A CN 111278700 A CN111278700 A CN 111278700A
- Authority
- CN
- China
- Prior art keywords
- combustion mode
- fuel ratio
- lean
- stoichiometric
- switching
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- B60K6/22—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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
-
- 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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
- F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3017—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used
- F02D41/3023—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the stratified charge spark-ignited mode
- F02D41/3029—Controlling fuel injection according to or using specific or several modes of combustion characterised by the mode(s) being used a mode being the stratified charge spark-ignited mode further comprising a homogeneous charge spark-ignited mode
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/3011—Controlling fuel injection according to or using specific or several modes of combustion
- F02D41/3064—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes
- F02D41/307—Controlling fuel injection according to or using specific or several modes of combustion with special control during transition between modes to avoid torque shocks
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1521—Digital data processing dependent on pinking with particular means during a transient phase, e.g. starting, acceleration, deceleration, gear change
-
- 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
- B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
-
- 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
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0019—Control system elements or transfer functions
- B60W2050/0026—Lookup tables or parameter maps
-
- 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
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0616—Position of fuel or air injector
- B60W2710/0622—Air-fuel ratio
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0616—Position of fuel or air injector
- B60W2710/0627—Fuel flow rate
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0616—Position of fuel or air injector
- B60W2710/0633—Inlet air flow rate
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1431—Controller structures or design the system including an input-output delay
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
- F02D2250/21—Control of the engine output torque during a transition between engine operation modes or states
-
- 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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Signal Processing (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
混合动力车辆具有能够在化学计量燃烧模式与稀薄燃烧模式之间进行切换的发动机(E)、以及能够进行基于动力运行的扭矩辅助和基于再生的扭矩吸收的电动机/发电机(MG)。作为化学计量和稀薄的区域的边界,扭矩降低时的第2边界(L2)相对于扭矩上升时的第1边界(L1)向低扭矩侧具有滞后。在从化学计量向稀薄转换时,针对进气量增加的延迟,进行燃料的减量和基于电动机/发电机(MG)的扭矩辅助,使排气空燃比阶段性地变化。
Description
技术领域
本发明涉及一种具有内燃机和电动机作为驱动源的混合动力车辆,特别涉及一种使用了能够在将理论空燃比设为目标空燃比的化学计量燃烧模式与将稀薄空燃比设为目标空燃比的稀薄燃烧模式之间进行切换的内燃机的混合动力车辆的控制方法及控制装置。
背景技术
为了降低燃料消耗率,已知能够在将理论空燃比设为目标空燃比的化学计量燃烧模式与将稀薄空燃比设为目标空燃比的稀薄燃烧模式之间进行切换的内燃机。在这样的内燃机中,在更宽范围的内燃机运转条件(扭矩以及内燃机转速)下设为稀薄燃烧模式,在降低燃料消耗率方面是优选的。
另一方面,从使用催化剂装置等处理的内燃机的排气的净化的观点出发,在目标空燃比变化的两种燃烧模式的切换时产生中间排气空燃比并非优选。即,优选在化学计量燃烧模式与稀薄燃烧模式的切换时,排气空燃比根据各个目标空燃比而阶段性地变化。
但是,由于在化学计量燃烧模式与稀薄燃烧模式下燃烧所需要的进气量分别不同,因此例如节气门开度伴随着燃烧模式的切换而变化,但是,即使假设节气门开度阶段性地变化,实际流入至燃烧室的进气量的变化也伴有延迟。因此,由于这个响应延迟而使实际的进气量偏离目标进气量,其结果,暂时产生中间排气空燃比。
本发明的目的在于,更宽范围地确保设为稀薄燃烧模式的稀薄燃烧运转区域而实现燃料消耗率的降低,并且尽可能地抑制燃烧模式切换时的中间排气空燃比的产生。
此外,专利文献1公开了如下技术,即,在混合动力车辆中,通过预先增大电动机输出比例而抑制在化学计量燃烧模式与稀薄燃烧模式的切换时的扭矩冲击。但是,专利文献1的技术并未解决上述的本发明的课题。
专利文献1:日本特开2008-68802号公报
发明内容
在本发明涉及的混合动力车辆的控制中,将内燃机的扭矩以及转速作为参数,预先设定设为化学计量燃烧模式的化学计量燃烧运转区域和设为稀薄燃烧模式的稀薄燃烧运转区域,但作为两个运转区域的高扭矩侧的边界,与在扭矩上升时进行从稀薄燃烧模式向化学计量燃烧模式的切换的第1边界相比,将在扭矩降低时进行从化学计量燃烧模式向稀薄燃烧模式的切换的第2边界设定于低扭矩侧。而且,在从化学计量燃烧运转区域向稀薄燃烧运转区域转换时,在燃烧模式切换后,针对伴随着切换的进气量变化的延迟,以维持目标空燃比的方式对燃料喷射量进行减量校正,并且以成为请求驱动力的方式通过上述电动机进行辅助。
即,在从化学计量燃烧运转区域向稀薄燃烧运转区域转换时,伴随着燃烧模式的切换,目标空燃比从化学计量向稀薄变化,目标进气量增大,但实际的进气量的变化伴有延迟。针对该进气量变化的延迟,以维持规定的稀薄空燃比即目标空燃比的方式进行燃料喷射量的减量校正。由此,抑制中间排气空燃比的产生。虽然内燃机的扭矩由于该燃料喷射量的减量校正而降低,但是通过电动机的动力运行进行辅助,从而能够满足整个车辆的请求驱动力。
由于这样从化学计量燃烧模式向稀薄燃烧模式的转换伴随有电动机的辅助,因此通过将应进行该转换的第2边界设定于低扭矩侧,能够进行将中间排气空燃比排除在外的转换而不需要过大的电动机扭矩。与此相对,作为从稀薄燃烧模式向化学计量燃烧模式的转换,由于例如通过点火时机延迟等能够不依赖电动机而进行满足请求驱动力的模式切换,因此,能够通过不限制于第2边界的位置而设定于高扭矩侧。因此,能够在更宽范围的区域设为稀薄燃烧模式,实现内燃机的燃料效率的提高。
附图说明
图1是表示本发明涉及的混合动力车辆的系统结构的结构说明图。
图2是表示混合动力车辆的多个行驶模式的特性图。
图3是表示发动机的目标空燃比的特性的特性图。
图4是表示场景2(箭头S2)中的模式切换处理的时序图。
图5是表示电池SOC低时的场景2中的模式切换处理的时序图。
图6是表示场景1(箭头S1)中的模式切换处理的时序图。
图7是表示一个实施例的模式切换处理的处理流程的流程图。
具体实施方式
图1是表示本发明涉及的混合动力车辆的系统结构的结构说明图。该混合动力车辆具有作为内燃机的发动机E和电动机/发电机MG作为车辆驱动源,经由第1离合器CL1、第2离合器CL2、自动变速器AT、差速器机构DF等驱动左右的后轮(驱动轮)RL、RR。
发动机E例如是缸内直接喷射式的火花点火式汽油内燃机,基于来自发动机控制器1的控制指令,控制未图示的节气门的开度、燃料喷射量、点火时机等。特别地,该发动机E是能够在将理论空燃比(即,空气过剩系数λ=1)设为目标空燃比的化学计量燃烧模式与将稀薄空燃比(例如,λ=2)设为目标空燃比的稀薄燃烧模式之间进行切换的结构。另外,发动机E在未图示的排气系统中具有使用了催化剂的排气净化装置,例如,通过与各种燃烧模式对应地进行流路的切换,实现在各模式下(换言之,在各个排气空燃比下)的适当的排气净化。
发动机E具有经由带传动机构与发动机E的曲轴连接的起动机/
发电机SSG。该起动机/发电机SSG由SSG控制器SSGCU控制为动力运行以及再生这两者,在动力运行时作为发动机起动用的起动机起作用,在再生时作为发电机进行发电。
第1离合器CL1是在发动机E与电动机/发电机MG之间安装的始终接合型的干式离合器,通过基于来自第1离合器控制器5的控制指令而由第1离合器液压单元6生成的控制液压,对接合/断开进行控制。该第1离合器CL1通过上述控制液压,能够进行一边滑动一边进行扭矩传递的滑动接合。
电动机/发电机MG是永磁体型三相交流电动机,基于来自电动机控制器2的控制指令,经由逆变器3,被控制为动力运行以及再生这两者。通过接受来自电池4的电力而进行动力运行动作,能够进行车辆驱动力的辅助,另外,通过再生动作进行电池4的充电。电动机/发电机MG的使用了永磁体的转子经由未图示的减震器与自动变速器AT的输入轴连结。
第2离合器CL2是也作为位于电动机/发电机MG与左右后轮RL、RR之间的起步离合器起作用的离合器。该第2离合器CL2实际上由自动变速器AT具有的离合器、制动器等多个摩擦接合要素中的一个或者多个摩擦接合要素构成。第2离合器CL2通过基于来自AT控制器7的控制指令而由AT液压控制单元8生成的控制液压,对包含滑动接合在内的接合/断开进行控制。
自动变速器AT例如是有级自动变速器,基于车速VSP、加速器开度(驾驶员的加速器踏板操作量)APO等,通过AT控制器7进行变速控制。
混合动力车辆具有发动机控制器1、电动机控制器2、逆变器3、电池4、第1离合器控制器5、第1离合器液压单元6、AT控制器7、AT液压控制单元8、制动器控制器9、综合控制器10和SSG控制器SSGCU作为控制系统。发动机控制器1、电动机控制器2、第1离合器控制器5、AT控制器7、制动器控制器9、综合控制器10和SSG控制器SSGCU以能够彼此交换信息的方式经由CAN通信线11相互连接。
发动机控制器1基于来自综合控制器10的基于请求驱动力的目标发动机扭矩指令,控制节气门开度、燃料喷射量等。向发动机控制器1输入来自发动机转速传感器12的发动机转速信息、来自气缸判别传感器32的气缸判别信号、来自吸入空气量传感器33的进气量信息等。
向电动机控制器2输入来自检测电动机/发电机MG的转子旋转位置的解析器13的信息以及来自综合控制器10的目标电动机扭矩指令等。电动机控制器2与目标电动机扭矩指令等相应地向逆变器3输出对电动机/发电机MG的电动机动作点进行控制的指令。另外,电动机控制器2监视表示电池4的充电状态的SOC(充电状态)。SOC信息用于电动机/发电机MG的控制,并且向综合控制器10供给。
第1离合器控制器5被输入来自第1离合器液压传感器14以及第1离合器行程传感器15的传感器信息,并且被输入来自综合控制器10的第1离合器控制指令,基于这些,向第1离合器液压单元6输出第1离合器CL1的接合/断开控制指令。由第1离合器行程传感器15检测出的第1离合器行程C1S的信息向综合控制器10供给。
AT控制器7被输入来自加速器踏板开度传感器16、车速传感器17、第2离合器液压传感器18、输出与变速杆27的操作位置相应的挡位信号的空挡起动开关28等传感器类的传感器信号,并且被输入来自综合控制器10的控制指令,基于这些向AT液压控制单元8输出控制指令。加速器开度APO、车速VSP以及空挡起动开关信号向综合控制器10供给。
来自检测四个车轮各自的车轮速度的车轮速度传感器19以及制动器行程传感器20的传感器信息被输入至制动器控制器9。在制动器踩踏制动时,该制动器控制器9基于来自综合控制器10的再生协调控制信号,以通过机械制动力(由摩擦制动器产生的制动力)补偿再生制动力相对于从制动器行程BS求出的请求制动力的不足部分的方式,进行再生协调制动控制。
综合控制器10管理整个车辆的消耗能量,以使车辆高效率地行驶的方式进行发动机E、电动机/发电机MG等的综合控制。检测电动机转速Nm的电动机转速传感器21、检测第2离合器输出转速N2out的第2离合器输出转速传感器22、检测第2离合器传递扭矩容量TCL2的第2离合器扭矩传感器23、检测制动器液压的制动器液压传感器24、检测第2离合器CL2的温度的第2离合器温度传感器25、检测车辆的前后加速度的G传感器26、第1离合器温度传感器30、和逆变器温度传感器31的各传感器的检测信号被输入至综合控制器10,并且,经由CAN通信线11从其他控制器等供给的信息被输入至综合控制器10。
此外,经由综合控制器10在功能上一体化的发动机控制器1以及电动机控制器2相当于权利要求中的“控制器”。
如图2所示,上述混合动力车辆与加速器开度APO以及车速VSP相关联而具有3种行驶模式。即,具有:电动汽车行驶模式(EV行驶模式),在第1离合器CL1的断开状态下,仅将电动机/发电机MG的动力作为动力源进行行驶;发动机使用行驶模式(HEV行驶模式),在第1离合器CL1的接合状态下,一边将发动机E包含于动力源一边行驶;以及发动机使用滑动行驶模式(WSC行驶模式),在第1离合器CL1的接合状态下,对第2离合器CL2进行滑动控制,一边将发动机E包含于动力源一边行驶。
并且,上述HEV行驶模式包含3种行驶模式,即,发动机行驶模式、电动机辅助行驶模式和行驶发电模式。在发动机行驶模式下,仅通过发动机E的动力进行行驶。在电动机辅助行驶模式下,通过发动机E和电动机/发电机MG双方的动力进行行驶。在行驶发电模式下,将发动机E作为动力源进行行驶,并且使电动机/发电机MG作为发电机起作用。在减速时,对制动能量进行再生而进行发电,对电池4进行充电。
此外,在车辆停止中,具有利用发动机E的动力使电动机/发电机MG作为发电机工作的发电模式。另外,在电池4的SOC低时、存在怠速停止禁止请求的情况下,强制从EV行驶模式向HEV行驶模式转换。
图3是表示目标空燃比相对于发动机E的运转条件(扭矩以及转速)的特性的特性图。在上述的HEV行驶模式例如发动机行驶模式下,基于发动机控制器1从综合控制器10接收的指令,以满足目标发动机扭矩的方式在对应的运转点(扭矩以及转速的特定组合)使发动机E运转。如上所述,发动机E是能够在将理论空燃比(λ=1)设为目标空燃比的化学计量燃烧模式与将稀薄空燃比(λ=2)设为目标空燃比的稀薄燃烧模式之间进行转换的结构,在图3中,如果在表示为“稀薄区域”的稀薄燃烧运转区域内存在运转点,则选择稀薄燃烧模式,如果在表示为“化学计量区域”的化学计量燃烧运转区域内存在运转点,则选择化学计量燃烧模式。例如,发动机控制器1具有与图3的特性对应的燃烧模式切换对应图。此外,化学计量燃烧运转区域与稀薄燃烧运转区域相比存在于低扭矩侧以及高扭矩侧这双方,与某个转速相比高转速侧也成为化学计量燃烧运转区域。
这里,作为稀薄燃烧运转区域与化学计量燃烧运转区域的高扭矩侧的边界,具有在发动机E的扭矩上升时进行从稀薄燃烧模式向化学计量燃烧模式的切换的第1边界L1、和在扭矩降低时进行从化学计量燃烧模式向稀薄燃烧模式的切换的第2边界L2,第2边界L2与第1边界L1相比设定于低扭矩侧。换言之,扭矩降低时的第2边界L2相对于扭矩上升时的第1边界L1向低扭矩侧具有滞后。
因此,当在稀薄燃烧运转区域内在稀薄燃烧模式下的运转中扭矩上升时,在运转点已穿过第1边界L1时进行向化学计量燃烧模式的切换处理(参照图3的箭头S1)。相反,当在高扭矩侧的化学计量燃烧运转区域内化学计量燃烧模式下的运转中扭矩降低时,即使运转点与第1边界L1相比变成低扭矩,也继续化学计量燃烧模式,在运转点穿过第2边界L2时,进行向稀薄燃烧模式的切换处理(参照图3的箭头S2)。然后,一旦穿过第2边界而切换至稀薄燃烧模式之后,即使假设扭矩上升,也维持稀薄燃烧模式直至越过第1边界L1。
换言之,与通过与扭矩降低方向相关的第2边界L2确定的稀薄燃烧运转区域相比,关于扭矩上升方向,通过将第1边界L1设定于高扭矩侧,从而稀薄燃烧运转区域实质上变宽。
这里,第1边界L1是沿着极限扭矩设定的,该极限扭矩是伴随着扭矩上升而增大燃料喷射量时将目标空燃比设为稀薄(例如λ=2)的稀薄燃烧能够成立的扭矩。另外,如后所述,第2边界L2是沿着在模式切换处理时进行驱动力的辅助的电动机/发电机MG的性能极限而设定的。
图4的时序图示出了图3中的箭头S2所示的区域转换时(场景2)的燃烧模式切换处理。该场景2相当于如下的状况,即,例如,如图4的(a)栏所示,从以使车速增大的方式以相对较大的加速器开度进行运转的状态起,在时刻t1使车速恒定的加速器开度阶段性地减小。在时刻t1,如图3的箭头S2所示,运转点变化,穿过第2边界L2。
伴随着这样的运转点的转换,如(c)栏所示,燃烧模式从至此为止的化学计量燃烧模式(λ=1)切换至稀薄燃烧模式(λ=2),目标空燃比变为与“λ=2”相当。由于该目标空燃比的变更,所需要的进气量(新气量)增大,因此目标进气量阶段性地变化,节气门的开度迅速增大。但是,如(b)栏所示,实际流入至缸内的进气量的变化存在延迟,例如在时刻t2达到与“λ=2”对应的目标进气量。因此,在从时刻t1至时刻t2的期间,实际的进气量相对于与“λ=2”对应的目标进气量而不足。
与这样的进气量的不足相对应,如(d)栏所示,进行燃料喷射量的减量校正。详细地说,针对(b)栏所示的进气量变化的延迟,以维持目标空燃比(λ=2)的方式对燃料喷射量进行减量校正。由此,成为催化剂装置的净化对象的排气的排气空燃比在时刻t1从与“λ=1”相当向与“λ=2”相当阶段性地变化,从而抑制中间排气空燃比的产生。此外,严格地说,在化学计量燃烧模式和稀薄燃烧模式下,针对相同扭矩所需要的燃料量稍有不同,但是这里,从排气净化的观点出发,以使得排气空燃比成为与“λ=2”相当的恒定值的方式进行减量校正。进气量从时刻t1向时刻t2逐渐接近目标进气量,因此燃料喷射量的减量校正逐渐缩小。
如上所述的燃料喷射量的减量校正的结果,如(e)栏所示,发动机E实际产生的扭矩小于目标发动机扭矩。与此相对,如(f)栏所示,基于从综合控制器10向电动机控制器2赋予的指令,以发动机E的驱动力和电动机/发电机MG的驱动力的总和满足整个车辆的请求驱动力的方式,进行基于电动机/发电机MG的辅助。因此,能够抑制排气空燃比在模式切换时成为中间值并且能够进行沿着请求驱动力的运转。
接着,图5的时序图示出了同样通过图3的箭头S2表示的区域转换时(场景2),当电池4的充电状态低于或等于规定水平时(例如SOC低于或等于规定值时)的燃烧模式切换处理。
在该情况下,在时刻t1,在实际的燃烧模式切换之前使目标进气量以与稀薄空燃比(λ=2)对应的方式变化。节气门开度与此对应地增大,但与上述的例子同样地,实际的进气量伴随有延迟而变化,在时刻t2达到目标进气量(参照(b)栏)。
如(c)栏所示,实际的燃烧模式的切换不在时刻t1进行。如果进气量在时刻t2达到目标进气量,则燃烧模式从化学计量燃烧模式向稀薄燃烧模式切换。因此,在从时刻t1至时刻t2的期间,实际的进气量相对于与“λ=1”相当的进气量过剩。
针对这样的过剩的进气量,在该例子中,如(d)栏所示,在时刻t1至时刻t2的期间,以将理论空燃比(λ=1)直接维持为目标空燃比的方式对燃料喷射量进行增量校正。由于进气量逐渐接近目标进气量,因此增量校正量逐渐减少。然后,如果在时刻t2进气量达到目标进气量,则结束增量校正,设为与稀薄空燃比(λ=2)对应的燃料喷射量。
因此,在时刻t1至时刻t2的期间,排气空燃比维持为与“λ=1”相当,在时刻t2阶段性地变化为与“λ=2”相当的排气空燃比。因此,抑制了中间排气空燃比的产生。
另一方面,伴随着上述增量校正,如(e)栏所示,在从时刻t1至时刻t2的期间,发动机E的驱动力相对于请求变得过剩。针对该过剩的发动机E的驱动力,如(f)栏所示,以发动机E的驱动力与电动机/发电机MG的驱动力的总和沿着整个车辆的请求驱动力的方式,进行电动机/发电机MG的再生(即动力吸收)。
接着,图6的时序图示出了通过图3的箭头S1所示的区域转换时(场景1)的燃烧模式切换处理。例如,如图6的(a)栏所示,该场景1相当于如下状况,即,从以将车速维持为恒定的方式以相对较小的加速器开度运转的状态起,在时刻t1使车辆加速的加速器开度阶段性地增大。在时刻t1,如图3的箭头S1所示,运转点变化,穿过第1边界L1。
伴随着这样的运转点的转换,如(c)栏所示,燃烧模式从至此为止的稀薄燃烧模式(λ=2)切换至化学计量燃烧模式(λ=1),目标空燃比变成与“λ=1”相当。由于该目标空燃比的变更,所需要的进气量(新气量)减少,因此目标进气量阶段性地变化,节气门的开度迅速减小。但是,如(b)栏所示,实际流入至缸内的进气量的变化存在延迟,例如在时刻t2达到与“λ=1”对应的目标进气量。因此,在从时刻t1至时刻t2的期间,实际的进气量相对于与“λ=1”相当的目标进气量变得过剩。
如(d)栏所示,与这样的过剩的进气量对应地,进行燃料喷射量的增量校正。详细地讲,针对(b)栏所示的进气量变化的延迟,以维持目标空燃比(λ=1)的方式对燃料喷射量进行增量校正。由此,成为催化剂装置的净化对象的排气的排气空燃比在时刻t1从与“λ=2”相当向与“λ=1”相当阶段性地变化,抑制中间排气空燃比的产生。此外,严格地说,在稀薄燃烧模式和化学计量燃烧模式下,针对相同的扭矩,所需要的燃料量稍有不同,但是这里,从排气净化的观点出发,以使得排气空燃比成为与“λ=1”相当的恒定值的方式进行增量校正。由于进气量从时刻t1向时刻t2逐渐接近目标进气量,因此燃料喷射量的增量校正逐渐缩小。
如上所述的燃料喷射量的增量校正的结果,发动机E产生的扭矩如(e)栏中虚线所示,可能暂时大于目标发动机扭矩。与此相对,如(g)栏所示,为了抑制扭矩而执行点火时机延迟。即,点火时机被校正为与MBT点相比更靠延迟侧。由于该点火时机延迟,实际上发动机E产生的扭矩如(e)栏中实线所示,成为沿着目标发动机扭矩的扭矩。因此,能够抑制排气空燃比在模式切换时成为中间值并且能够进行沿着请求驱动力的运转。
这样,由于如场景2那样第2边界L2处的从化学计量燃烧模式向稀薄燃烧模式的切换伴随有电动机/发电机MG的辅助(或者再生),因此第2边界L2是沿着电动机/发电机MG的性能极限(换言之,最大输出)设定的。因此,第2边界L2位于相对低的低扭矩侧。此外,如果在燃烧模式切换时允许一些扭矩阶差(torque step),则能够将第2边界L2设定于比与电动机/发电机MG的最大输出对应的特性稍高的高扭矩侧。
相对于第2边界L2的设定,成为从不需要电动机/发电机MG的辅助的稀薄燃烧模式向化学计量燃烧模式的切换的第1边界L1被设定于更高扭矩侧。即,确保在燃料效率这一点上有利的稀薄燃烧运转区域更宽。
图7是示出由发动机控制器1以及电动机控制器2执行的燃烧模式切换控制的流程的流程图。在步骤1中,判定当前的燃烧模式是否是稀薄燃烧模式,换言之,判定刚刚之前的发动机E的运转点是否处于稀薄燃烧运转区域内。
如果在步骤1中是YES即稀薄燃烧模式,则进入步骤2,判定运转点是否已转换至化学计量燃烧运转区域。如果步骤2中是NO,则继续稀薄燃烧模式。如果在步骤2中是YES,即,运转点从稀薄燃烧运转区域穿过第1边界L1而转换至化学计量燃烧运转区域(参照图3的箭头S1),则从步骤2进入步骤3,执行图6所示的从稀薄燃烧模式向化学计量燃烧模式的模式切换处理。即,如上所述,将燃烧模式立即切换为化学计量燃烧模式,并且进行燃料喷射量的增量校正以及点火时机延迟,使排气空燃比阶段性地变化至与“λ=1”相当。
在步骤4中,判断进气量是否已达到目标进气量,如果达到目标进气量,则进入步骤5,转换为化学计量燃烧模式下的通常控制。
如果在步骤1中是NO即化学计量燃烧模式,则从步骤1进入步骤6,判定运转点是否已转换至稀薄燃烧运转区域。如果在步骤6中是NO,则继续化学计量燃烧模式。如果在步骤6中是YES,即,运转点从化学计量燃烧运转区域穿过第2边界L2而转换至稀薄燃烧运转区域(参照图3的箭头S2),则从步骤6进入步骤7,判定电池4的SOC是否大于规定值。如果电池4的SOC大于规定值,则从步骤7进入步骤8,执行图4所示的从化学计量燃烧模式向稀薄燃烧模式的模式切换处理。即,如上所述,将燃烧模式立即切换为稀薄燃烧模式,并且进行燃料喷射量的减量校正以及基于电动机/发电机MG的动力运行的扭矩辅助,使排气空燃比阶段性地变化至与“λ=2”相当。
在步骤9中,判断进气量是否已达到目标进气量,如果达到目标进气量,则进入步骤10,转换为稀薄燃烧模式下的通常控制。
在步骤7中SOC小于或等于规定值的情况下,从步骤7进入步骤11,执行图5所示的从化学计量燃烧模式向稀薄燃烧模式的模式切换处理。即,如上所述,立即变更目标进气量,并且进行燃料喷射量的增量校正以及基于电动机/发电机MG的再生的扭矩吸收,继续与“λ=1”相当的化学计量燃烧模式。然后,在步骤12中,判断进气量是否已达到目标进气量,如果达到目标进气量,则进入步骤10,转换为稀薄燃烧模式下的通常控制。即,在该情况下,如上所述,在达到目标进气量的时间点,实际的燃烧模式向稀薄燃烧模式切换。
以上,详细地说明了本发明的一个实施例,但本发明不限定于上述实施例,能够进行各种变更。例如,在上述实施例中,说明了将稀薄燃烧模式的空燃比设为与“λ=2”相当的例子,但本发明不限于此,能够使用适当的稀薄空燃比。另外,在上述实施例中,在电池4的SOC低时,执行图5所示的利用了电动机/发电机MG的再生的模式切换处理,但也可以在除了电池4的SOC以外难以进行基于电动机/发电机MG的扭矩辅助的条件时,执行图5的方式的模式切换处理。另外,在电池4的SOC低时,也能够不进行从化学计量燃烧模式向稀薄燃烧模式的切换。
并且,本发明也能够应用于所谓轻度混合动力型的混合动力车辆,该轻度混合动力型的混合动力车辆通过起动机/发电机SSG进行扭矩辅助而不具有行驶用的大型的电动机/发电机MG。
Claims (6)
1.一种混合动力车辆的控制方法,该混合动力车辆具有内燃机和电动机,该内燃机能够在将理论空燃比设为目标空燃比的化学计量燃烧模式与将稀薄空燃比设为目标空燃比的稀薄燃烧模式之间进行切换,该电动机能够通过动力运行进行所述内燃机的动力的辅助,在该混合动力车辆的控制方法中,
将内燃机的扭矩以及转速作为参数,预先设定设为所述化学计量燃烧模式的化学计量燃烧运转区域、和设为所述稀薄燃烧模式的稀薄燃烧运转区域,
作为两个运转区域的高扭矩侧的边界,与在扭矩上升时进行从稀薄燃烧模式向化学计量燃烧模式的切换的第1边界相比,将在扭矩降低时进行从化学计量燃烧模式向稀薄燃烧模式的切换的第2边界设定于低扭矩侧,
在从所述化学计量燃烧运转区域向稀薄燃烧运转区域转换时,在燃烧模式切换后,针对伴随着切换的进气量变化的延迟,以维持目标空燃比的方式对燃料喷射量进行减量校正,并且以成为请求驱动力的方式通过所述电动机进行辅助。
2.根据权利要求1所述的混合动力车辆的控制方法,其中,
与所述电动机的最大输出相关联地设定所述第2边界。
3.根据权利要求1或2所述的混合动力车辆的控制方法,其中,
作为所述电动机,使用能够通过动力运行进行所述内燃机的动力的辅助和通过再生进行所述内燃机的动力的吸收的电动机,
在从所述化学计量燃烧运转区域向稀薄燃烧运转区域转换时,在特定条件下,在燃烧模式切换之前以与稀薄空燃比对应的方式对目标进气量进行了切换之后,在进气量变化延迟的期间,以将理论空燃比维持为目标空燃比的方式对燃料喷射量进行增量校正,并且以成为请求驱动力的方式进行所述电动机的再生。
4.根据权利要求3所述的混合动力车辆的控制方法,其中,
所述特定的条件之一,是成为所述电动机的电源的电池的充电状态低于或等于规定水平。
5.根据权利要求1至4中任一项所述的混合动力车辆的控制方法,其中,
在从稀薄燃烧运转区域向化学计量燃烧运转区域转换时,在燃烧模式切换后,针对伴随着切换的进气量变化的延迟,以维持目标空燃比的方式对燃料喷射量进行增量校正,并且通过点火时机延迟进行扭矩的抑制。
6.一种混合动力车辆的控制装置,其具有:
内燃机,其能够在将理论空燃比设为目标空燃比的化学计量燃烧模式与将稀薄空燃比设为目标空燃比的稀薄燃烧模式之间进行切换;
电动机,能够通过动力运行进行所述内燃机的动力的辅助;以及
控制器,其控制所述内燃机以及所述电动机,
所述控制器具有燃烧模式切换对应图,该燃烧模式切换对应图将内燃机的扭矩以及转速作为参数,预先设定有设为所述化学计量燃烧模式的化学计量燃烧运转区域和设为所述稀薄燃烧模式的稀薄燃烧运转区域,
该燃烧模式切换对应图中的两个运转区域的高扭矩侧的边界具有在扭矩上升时进行从稀薄燃烧模式向化学计量燃烧模式的切换的第1边界、和与第1边界相比设定于低扭矩侧且在扭矩降低时进行从化学计量燃烧模式向稀薄燃烧模式的切换的第2边界,
并且,所述控制器在从所述化学计量燃烧运转区域向稀薄燃烧运转区域转换时,在燃烧模式切换后,针对伴随着切换的进气量变化的延迟,以维持目标空燃比的方式对燃料喷射量进行减量校正,并且以成为请求驱动力的方式通过所述电动机进行辅助。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2017/036901 WO2019073561A1 (ja) | 2017-10-12 | 2017-10-12 | ハイブリッド車両の制御方法および制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111278700A true CN111278700A (zh) | 2020-06-12 |
CN111278700B CN111278700B (zh) | 2023-03-07 |
Family
ID=66100541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201780095174.2A Active CN111278700B (zh) | 2017-10-12 | 2017-10-12 | 混合动力车辆的控制方法及控制装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11208094B2 (zh) |
EP (1) | EP3696036B1 (zh) |
JP (1) | JP6852802B2 (zh) |
CN (1) | CN111278700B (zh) |
WO (1) | WO2019073561A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113859214A (zh) * | 2021-09-28 | 2021-12-31 | 清华大学 | 混合动力系统发动机动态能效控制方法及装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019145991A1 (ja) * | 2018-01-23 | 2019-08-01 | 日産自動車株式会社 | 内燃機関の制御方法及び内燃機関の制御装置 |
GB2593761B (en) * | 2020-04-02 | 2022-09-28 | Jaguar Land Rover Ltd | Lean operating hybrid gasoline engine |
JP7460028B2 (ja) | 2021-07-26 | 2024-04-02 | 日産自動車株式会社 | 車両の制御方法及び車両の制御装置 |
JP7460027B2 (ja) | 2021-07-26 | 2024-04-02 | 日産自動車株式会社 | 車両の制御方法及び車両の制御装置 |
DE102022125438A1 (de) | 2022-09-30 | 2024-04-04 | HTM Hydro Technology Motors GmbH | Verfahren zum Betrieb eines Hybrid-Antriebsstrangs eines Kraftfahrzeugs sowie Hybrid-Antriebsstrang |
JP7485124B1 (ja) | 2023-02-24 | 2024-05-16 | いすゞ自動車株式会社 | 制御装置、車両、および制御方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11107815A (ja) * | 1997-10-08 | 1999-04-20 | Toyota Motor Corp | 希薄燃焼内燃機関の燃焼制御装置 |
JP2001082210A (ja) * | 1999-09-10 | 2001-03-27 | Toyota Motor Corp | 内燃機関の制御装置 |
JP2005069029A (ja) * | 2003-08-27 | 2005-03-17 | Toyota Motor Corp | 内燃機関の制御装置 |
JP2006009704A (ja) * | 2004-06-25 | 2006-01-12 | Mazda Motor Corp | 筒内噴射式内燃機関の燃料噴射制御装置 |
CN101516705A (zh) * | 2006-09-15 | 2009-08-26 | 丰田自动车株式会社 | 混合动力车辆及其控制方法 |
JP2010202114A (ja) * | 2009-03-05 | 2010-09-16 | Nissan Motor Co Ltd | ハイブリッド車両の制御装置 |
JP2014113954A (ja) * | 2012-12-11 | 2014-06-26 | Toyota Motor Corp | ハイブリッド車両の制御装置 |
JP2015212128A (ja) * | 2014-05-07 | 2015-11-26 | トヨタ自動車株式会社 | ハイブリッド車両の制御装置 |
CN105317576A (zh) * | 2014-06-30 | 2016-02-10 | 丰田自动车株式会社 | 用于内燃机的控制设备 |
CN106080578A (zh) * | 2015-04-28 | 2016-11-09 | 丰田自动车株式会社 | 混合动力车辆的控制装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3534271B2 (ja) * | 1995-04-20 | 2004-06-07 | 株式会社エクォス・リサーチ | ハイブリッド車両 |
US6367570B1 (en) * | 1997-10-17 | 2002-04-09 | Electromotive Inc. | Hybrid electric vehicle with electric motor providing strategic power assist to load balance internal combustion engine |
WO1999056011A1 (fr) * | 1998-04-28 | 1999-11-04 | Hitachi, Ltd. | Voiture hybride, et procede et dispositif d'entrainement pour ladite voiture |
JP3699592B2 (ja) * | 1998-06-19 | 2005-09-28 | 本田技研工業株式会社 | ハイブリッド駆動車両の制御装置 |
US6428444B1 (en) * | 1999-09-06 | 2002-08-06 | Toyota Jidosha Kabushiki Kaisha | Apparatus for controlling a vehicle and a method of controlling the vehicle |
JP3607246B2 (ja) * | 2001-11-30 | 2005-01-05 | 本田技研工業株式会社 | ハイブリッド車両の制御装置 |
JP3961277B2 (ja) * | 2001-12-12 | 2007-08-22 | 本田技研工業株式会社 | ハイブリッド車両のモータ出力制御装置 |
JP3915809B2 (ja) * | 2004-09-21 | 2007-05-16 | トヨタ自動車株式会社 | リーンリミットを低電力消費にて達成するハイブリッド車 |
JP5983873B2 (ja) * | 2013-05-31 | 2016-09-06 | トヨタ自動車株式会社 | ハイブリッド車両の制御装置 |
JP2016017426A (ja) * | 2014-07-07 | 2016-02-01 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
JP6414128B2 (ja) * | 2016-04-19 | 2018-10-31 | トヨタ自動車株式会社 | 内燃機関 |
-
2017
- 2017-10-12 EP EP17928635.6A patent/EP3696036B1/en active Active
- 2017-10-12 US US16/755,492 patent/US11208094B2/en active Active
- 2017-10-12 WO PCT/JP2017/036901 patent/WO2019073561A1/ja unknown
- 2017-10-12 JP JP2019547849A patent/JP6852802B2/ja active Active
- 2017-10-12 CN CN201780095174.2A patent/CN111278700B/zh active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11107815A (ja) * | 1997-10-08 | 1999-04-20 | Toyota Motor Corp | 希薄燃焼内燃機関の燃焼制御装置 |
JP2001082210A (ja) * | 1999-09-10 | 2001-03-27 | Toyota Motor Corp | 内燃機関の制御装置 |
JP2005069029A (ja) * | 2003-08-27 | 2005-03-17 | Toyota Motor Corp | 内燃機関の制御装置 |
JP2006009704A (ja) * | 2004-06-25 | 2006-01-12 | Mazda Motor Corp | 筒内噴射式内燃機関の燃料噴射制御装置 |
CN101516705A (zh) * | 2006-09-15 | 2009-08-26 | 丰田自动车株式会社 | 混合动力车辆及其控制方法 |
JP2010202114A (ja) * | 2009-03-05 | 2010-09-16 | Nissan Motor Co Ltd | ハイブリッド車両の制御装置 |
JP2014113954A (ja) * | 2012-12-11 | 2014-06-26 | Toyota Motor Corp | ハイブリッド車両の制御装置 |
JP2015212128A (ja) * | 2014-05-07 | 2015-11-26 | トヨタ自動車株式会社 | ハイブリッド車両の制御装置 |
CN105317576A (zh) * | 2014-06-30 | 2016-02-10 | 丰田自动车株式会社 | 用于内燃机的控制设备 |
CN106080578A (zh) * | 2015-04-28 | 2016-11-09 | 丰田自动车株式会社 | 混合动力车辆的控制装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113859214A (zh) * | 2021-09-28 | 2021-12-31 | 清华大学 | 混合动力系统发动机动态能效控制方法及装置 |
Also Published As
Publication number | Publication date |
---|---|
US20200398818A1 (en) | 2020-12-24 |
US11208094B2 (en) | 2021-12-28 |
JPWO2019073561A1 (ja) | 2021-01-21 |
EP3696036A1 (en) | 2020-08-19 |
JP6852802B2 (ja) | 2021-03-31 |
WO2019073561A1 (ja) | 2019-04-18 |
CN111278700B (zh) | 2023-03-07 |
EP3696036A4 (en) | 2020-11-11 |
EP3696036B1 (en) | 2021-08-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111278700B (zh) | 混合动力车辆的控制方法及控制装置 | |
US8825253B2 (en) | Hybrid vehicle control device | |
US10106166B2 (en) | Damping control device for hybrid vehicle | |
JP5521340B2 (ja) | ハイブリッド車両の制御装置 | |
JP5381157B2 (ja) | ハイブリッド車両の制御装置 | |
US9573584B2 (en) | Hybrid vehicle control device | |
US11207968B2 (en) | Hybrid vehicle cruise control device | |
JP6988913B2 (ja) | ハイブリッド車両の制御方法及びハイブリッド車両の制御装置 | |
JP5359386B2 (ja) | ハイブリッド車両の制御装置 | |
JP5807379B2 (ja) | ハイブリッド車両のエンジン停止制御装置 | |
JP6554030B2 (ja) | ハイブリッド車両の制御装置 | |
JP4086053B2 (ja) | ハイブリッド式自動車の制御装置 | |
JP5858578B2 (ja) | ハイブリッド車両における空燃比センサの学習装置 | |
US11390268B2 (en) | Control device and control method for vehicle | |
JP2013180583A (ja) | ハイブリッド車両の制御装置 | |
US20150166053A1 (en) | Controller for hybrid vehicle | |
JP4253937B2 (ja) | 車両用駆動装置の制御装置 | |
JP6967406B2 (ja) | ハイブリッド車両 | |
JP7013715B2 (ja) | ハイブリッド車両の駆動トルク制御装置および駆動トルク制御方法 | |
KR101054765B1 (ko) | 하이브리드 차량의 팁-아웃 쇼크 저감 방법 | |
JP2019026038A (ja) | ハイブリッド車両のエンジンの始動制御装置および始動制御方法 | |
JP2019025986A (ja) | ハイブリッド車両 | |
JP5007621B2 (ja) | ハイブリッド車両の回生制御装置 | |
JP2017105376A (ja) | ハイブリッド車両の駆動制御装置 | |
JP3861822B2 (ja) | ハイブリッド車両の制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |