CN107939575A - Engine driving control system - Google Patents

Engine driving control system Download PDF

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Publication number
CN107939575A
CN107939575A CN201710942696.3A CN201710942696A CN107939575A CN 107939575 A CN107939575 A CN 107939575A CN 201710942696 A CN201710942696 A CN 201710942696A CN 107939575 A CN107939575 A CN 107939575A
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CN
China
Prior art keywords
engine
driving
dynamotor
rotating speed
speed
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
Application number
CN201710942696.3A
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Chinese (zh)
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CN107939575B (en
Inventor
刑部铁也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Motor Corp
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Suzuki Motor Corp
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Publication of CN107939575A publication Critical patent/CN107939575A/en
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Publication of CN107939575B publication Critical patent/CN107939575B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
    • F02N11/0833—Vehicle conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current 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
    • B60K6/42—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
    • B60K6/485—Motor-assist type
    • 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
    • B60L15/2054—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 by controlling transmissions or clutches
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • 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
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • 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
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/11—Controlling the power contribution of each of the prime movers to meet required power demand using model predictive control [MPC] strategies, i.e. control methods based on models predicting performance
    • 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
    • B60W20/19—Control strategies specially adapted for achieving a particular effect for achieving enhanced acceleration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • 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
    • 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
    • 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
    • B60W2710/08—Electric propulsion units
    • B60W2710/083—Torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • F02N2200/022—Engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
    • F02N2200/063—Battery voltage
    • 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
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T10/72—Electric energy management in electromobility

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

Abstract

It is an object of the invention to provide it is a kind of can in a wide range of the driving of assisted engine, so as to fulfill efficiency of combustion raising engine driving control system.Engine driving control system (3) includes：Dynamotor (20), dynamotor driving bent axle (10) rotation；The rotation of bent axle corresponding to engine speed is delivered to driven wheel side by automatic clutch (24), the automatic clutch；And control unit (2,23), driving of the control unit to dynamotor are controlled.If engine speed reaches starts the second rotating speed (N2) of the first rotating speed (N1) of starting greatly, automatic clutch connection crankshaft side and driven wheel side than engine.In driving dynamotor after engine speed reaches the first rotating speed, control unit stops the driving of dynamotor and changes the driving torque of dynamotor, if engine speed reaches the second rotating speed, control unit uses the driving torque driving dynamoelectric and power generation after change.

Description

Engine driving control system
Technical field
The present invention relates to a kind of engine driving control system.
Background technology
All the time, such engine driving control system is suggested：Use the electricity having concurrently as driving engine The function of motivation and the driving of engine is controlled (such as to join come the dynamotor for the function of generating electricity using the power of engine According to patent document 1).In the engine driving control system described in patent document 1, by the driving force of dynamotor, Engine is driven to rotating speed necessary to engine starts.Then, if the rotating speed of engine is raised to defined rotating speed, Start fuel injection, so that engine starts.
In addition, in patent document 1, used as the mechanism that the power of engine is delivered to speed change pusher side centrifugation from The clutch of clutch uniform velocity induction type.In patent document 1, after the engine is started up, reaching what clutch can connect Before engine speed, rotation driving is aided in using dynamotor.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2006-54940 publications
However, in the engine driving control system described in patent document 1, the rotation to engine of dynamotor Turn before driving only stays in clutch connection, and can not realize further engine auxiliary.
The content of the invention
The present invention is obtained based on the above problem, and its purpose is to provide a kind of engine driving control system, Neng Gou The driving of assisted engine in a wide range of, so as to fulfill the raising of efficiency of combustion.
The engine driving control system of the present invention includes：Dynamotor, the dynamotor have driving bent axle rotation The motor function and the generator function for the rotation generation motional electromotive force again for passing through the bent axle turned；Automatic clutch, should be certainly The rotation of the bent axle corresponding to engine speed is delivered to driven wheel side by dynamic clutch；And control unit, the control Driving of the unit to engine and the dynamotor is controlled, and starts to start than engine if engine speed reaches Big the second rotating speed of the first rotating speed, then the automatic clutch connect the crankshaft side and the driven wheel side, the control Unit after engine speed reaches first rotating speed, stops the dynamotor in the driving dynamotor Drive and change the driving torque of the dynamotor, if engine speed reaches second rotating speed, the control is single Member drives the dynamotor using the driving torque after change.
Engine driving control system according to the present invention, can in a wide range of assisted engine driving so that reality The raising of existing efficiency of combustion.
Brief description of the drawings
Fig. 1 is the schematic diagram of the engine of present embodiment.
Fig. 2 is the functional block diagram of the engine driving control system of present embodiment.
Fig. 3 is the figure of an example of the circuit structure for the dynamotor for representing present embodiment.
Fig. 4 is the figure for representing the relation between engine speed and engine driving control.
Fig. 5 is the figure for representing the relation between cell voltage and engine driving control.
Fig. 6 is the figure for the engine driving control flow for representing present embodiment.
Fig. 7 is the figure for the engine driving control flow for representing present embodiment.
Fig. 8 is the figure for the engine driving control flow for representing present embodiment.
1 engine
10 bent axles
2 ECU (control unit)
20 dynamotor
22 batteries
23 inverters (control unit)
24 automatic clutches
26 driving wheels
3 engine driving control systems
The first rotating speeds of N1
The second rotating speeds of N2
The 3rd rotating speeds of N3
The 4th rotating speeds of N4
V1 first voltages
V2 second voltages
Embodiment
In the following, the engine driving control system of present embodiment illustrated referring to the drawings.Also, this embodiment party The engine driving control system of formula is not limited to structure as shown below, but can suitably be changed.Engine drives Autocontrol system can be adapted for any kind of vehicle, for example, can be suitable for motorcycle, automobile type motor tricycle, Or four-wheel automobile.
First, the general configuration of general engine is illustrated with reference to Fig. 1.Fig. 1 is the engine of present embodiment Schematic diagram.Also, engine is not limited to structure as shown below, but can suitably be changed.
As shown in Figure 1, engine 1 is, for example, DOHC (the Double OverHead Camshaft of Direct Action Type：It is double aerial convex Wheel shaft) engine.Engine 1 includes bent axle 10, cylinder 11 and cylinder head 12 etc. in the crankcase not illustrated.In cylinder 11 Interior, piston 13 is received as can be up and down reciprocatingly.Bent axle 10 and piston 13 are linked using connecting rod 14.In engine 1, pass through Piston 13 moves back and forth in the up-down direction, so that bent axle 10 is rotated via connecting rod 14.
The inner space of cylinder head 12 forms combustion chamber 15.In addition, it is equipped with inlet valve 16 and exhaust valve in cylinder head 12 17, correspond respectively to air inlet and exhaust outlet.In addition, being equipped with a pair of cams axis 18, inlet valve 16 and row are corresponded respectively to Valve 17.A pair of cam chain not illustrated is provided with bent axle 10 and a pair of cams axis 18.The rotation of bent axle 10 is via convex Take turns linkwork and be delivered to a pair of cams axis 18.
A pair of cams axis 18 rotates, so that inlet valve 16 and exhaust valve 17 are moved back and forth to combustion chamber 15.In this way, adjustment Inlet valve 16 and the respective opening and closing opportunity of exhaust valve 17.Igniter 19 is formed in addition, being equipped with the top of combustion chamber 15 The spark plug 19a of a part.In addition to spark plug 19a, igniter 19 also comprising ignition coil 19b, high-voltage line 19c, with And plug 19d.
Ignition coil 19b is connected via high-voltage line 19c with plug 19d, and plug 19d is installed on spark plug 19a.Ignition lead The voltage provided from battery (not shown) is for example increased to hundreds times by circle 19b.In the high-tension current that ignition coil 19b is increased Spark plug 19a is provided via high-voltage line 19c.Thus, spark is produced on the top of spark plug 19a.In igniter 19, Lighted a fire based on the ignition signal that ECU2 is exported on defined opportunity, so that the mixed gas in combustion chamber 15 is caught fire.
In addition, bent axle 10 is connected with dynamotor 20, dynamotor 20 is coaxially disposed with bent axle 10.Dynamoelectric and power generation Machine 20 via inverter 23 described later and with battery 22 (together with reference to Fig. 2) connection.Dynamotor 20 receives and comes from battery 22 Electric power provide and drive bent axle 10 to rotate, that is, carry out so-called " power operation ".In addition, in the driving of engine 1, electronic hair For motor 20 from rotating energy (rotation of bent axle 10) recycling (generation) electric energy (motional electromotive force again) of engine 1, that is, it is so-called to carry out " regeneration ".
In this way, dynamotor 20 has driving 10 rotating motor function of bent axle concurrently and is generated electricity by the rotation of bent axle 10 Generator function.
Various actions in engine 1 are controlled by ECU2.ECU2 by the various processing in execution engine 1 processor, Memory etc. is formed.According to purposes, memory is deposited by ROM (Read Only Memory), RAM (Random Access Memory) etc. Media are stored up to form.Control program of each component of control engine 1 etc. is stored with memory.ECU2 passes through in vehicle Various sensors judge the state of vehicle, so as to implement the ignition timing of igniter 19, dynamotor 20 (motor) The control of driving.
But in the conventional engine driving control system of dynamotor has been used, on dynamotor Capacity, is only ensured that engine starts necessary torque.In addition, in conventional dynamotor, will can only start Untill machine rotating speed brings up to defined rotating speed, the stage for suitably carrying out engine auxiliary is not reached.
For example, including can by corresponding to the power of the engine of engine speed be delivered to speed change pusher side it is automatic from In the vehicle of clutch, there is following scheme to be suggested：Driven with dynamotor come assisted engine, until reaching clutch connection Untill necessary engine speed.However, the auxiliary of motor is defined to before clutch connection, it is therefore envisaged that It is：The sense of acceleration of the vehicle after clutch connection can not fully be obtained.
Therefore, inventors have seen that be：In the vehicle including automatic clutch 24 (with reference to Fig. 2), from Driving dynamotor 20 after clutch connection, so that assisted engine drives.Specifically, in the present embodiment, electricity is made Dynamic generator 20 is winding switching mode, and to use " high torque (HT) is low rotary-type " and " low torque height is rotary-type " both patterns To switch the structure of the driving torque of dynamotor 20.
If for example, when engine starts, " high torque (HT) is low rotary-type " driving dynamotor 20 is used, bent axle 10 turns Speed reaches engine and starts to start the egulation rotating speed (the first rotating speed N1 described later) of (fuel injection and igniting start), then first Stop the driving of dynamotor 20.
Before engine speed (the second rotating speed N2 described later) necessary to reaching clutch connection, started with common Machine drives (fuel injection and igniting) engine speed is increased, and during this period cuts the driving torque of dynamotor 20 It is changed to " low torque height is rotary-type ".Also, after clutch connection, in addition to common fuel injection, also use " low turn Square height is rotary-type " driving torque driving dynamotor 20.
The stage assisted engine driving that thereby, it is possible to rise in car speed.That is, can be with dynamotor 20 come auxiliary Help the acceleration of vehicle.Therefore, occupant can obtain the acceleration sensation with engine-driven auxiliary, further, can Fuel injection is reduced, suppresses fuel consumption.
Then, the structure of the engine driving control system of present embodiment is illustrated with reference to Fig. 2.Fig. 2 is this reality Apply the functional block diagram of the engine driving control system of mode.The engine driving control system of present embodiment is for example for wrapping Include the hybrid electric vehicle of automatic clutch.And, however it is not limited to hybrid electric vehicle or other kinds of vehicle.
As shown in Fig. 2, engine driving control system 3 is configured to：By controlling engine 1 (with reference to Fig. 1) and electronic The driving of generator 20, so that the driving (rotation driving of bent axle 10) of assisted engine 1.In addition, engine driving control system System 3 not merely starts engine 1, is also configured such as：Stop engine 1 (idling flameout) when vehicle stopped, in throttle In the case that operation occurs in (not illustrating), dynamotor 20 is driven, so as to start engine 1 again.
Specifically, engine driving control system 3 includes：Dynamotor 20,20 auxiliary engine of dynamotor The driving of machine 1；ECU2 and inverter 23, the ECU2 and inverter 23 are as control engine 1 and dynamotor 20 Driving control unit.In addition, engine driving control system 3 further includes fuel injection device 21, igniter 19, battery 22nd, bent axle 10, automatic clutch 24, variable-speed motor 25, driving wheel 26, crankshaft sensor 27, vehicle speed sensor 28 and throttle position Put sensor 29 etc..
ECU2 and inverter 23 form the control unit of the present invention.ECU2 is according to speed, air inlet pressure, engine speed etc. Various parameters and the control for implementing fuel injection device 21 (fuel injection amount), igniter 19 (ignition timing).Fuel injection Device 21 is for example made of spray fuel part, receives the instruction from ECU2, thus with most suitable emitted dose, injecting time, Opportunity carrys out spray fuel.As described above, igniter 19 receives the instruction from ECU2, so as to light a fire on most suitable opportunity.
In addition, the threshold value (the first-the four rotating speed N1-N4 described later) of ECU2 storage engine speed, the threshold value are drivings Control determinating reference during dynamotor 20.Although referring to aftermentioned, ECU2 is according to engine speed and by dynamotor 20 driving instruction is sent to inverter 23.
In addition, ECU2 calculates engine acceleration (change rate of engine speed) by rotating speed of bent axle 10 etc..Bent axle 10 rotating speed (engine speed) can for example be obtained by ECU2 from crankshaft sensor 27.Also, engine acceleration is simultaneously unlimited In the rotating speed by bent axle 10, can also be calculated by speed, accelerator open degree.For example, ECU2 can be by arranged on driving wheel 26 vehicle speed sensor 28 obtains speed, can obtain accelerator open degree by throttle position switch 29.
As described above, dynamotor 20 is connected with battery 22 via inverter 23.Battery 22 is not only to ECU2, inverse Become device 23 and dynamotor 20 provides electric power, also performance is stored in electric power caused by dynamotor 20 and (regenerates electronic Gesture) effect.
Inverter 23 receives the instruction of ECU2 by drive control, and controls the driving of dynamotor 20.Specifically, Electric current from battery 22 is exchange from DC converting by inverter 23, is then provided to dynamotor 20.In addition, inverter 23 future automotor-generator 20 electric current from exchange conversion be direct current, be then provided to battery 22.In addition, inverter 23 also wraps Changing unit 23a is included, changing unit 23a changes the driving torque of dynamotor 20.
Torque changing unit 23a is configured to：The instruction of ECU2 is received, so as to switch the winding switching electricity of dynamotor 20 Road 4 (with reference to Fig. 3).Thus, the torque of dynamotor 20 is changed.Winding switching circuit 4 is described below.
As described above, dynamotor 20 is set as, and instruction based on ECU2 and inverter 23 coaxial with bent axle 10 And bent axle 10 is driven to rotate.Bent axle 10 is connected via automatic clutch 24 with variable-speed motor 25.In addition, variable-speed motor 25 and driving wheel 26 connections.
Automatic clutch 24 is for example made of the clutch of centrifugal clutch uniform velocity induction type, will be turned corresponding to engine The rotation of the bent axle 10 of speed is delivered to 26 side of driving wheel (variable-speed motor 25).Also, automatic clutch 24 is not limited to centrifugation clutch Device, can also be made of the clutch of electromagnetic type.
Herein, illustrated with reference to Fig. 3 circuit structures possessed to the dynamotor of present embodiment.Fig. 3 is table Show the figure of an example of the circuit structure of the dynamotor of present embodiment.Fig. 3 (A) represents the three-phase alternating current of winding switching mode The circuit diagram of motor, Fig. 3 (B) represent the low rotary-type winding switching circuit of high torque (HT), and Fig. 3 (C) represents the high rotation of low torque The winding switching circuit of type.In addition, in Fig. 3 (B) and Fig. 3 (C), the phase in three-phase is only represented.Also, dynamotor The circuit structure possessed is not limited to structure as shown below, but can suitably be changed.As long as dynamotor It can make main force's torque change according to engine speed, then motor can be any structure.
Dynamotor 20 is made of (with reference to Fig. 1 or Fig. 2) three-phase alternating-current motor.As shown in figure 3, in present embodiment In, in the winding switching circuit 4 that dynamotor 20 possesses, cut using the winding for the quantity for allowing hand over winding (coil) Change mode.As shown in Fig. 3 (A), the winding 40 of each phase (three-phase) of winding switching circuit 4 connects (star in neutral point 41 by common Shape links).Winding includes first coil 42, the second coil 43, first switch 44, second switch 45.
Specifically, one end of first coil 42 is connected to neutral point 41, and the other end of first coil 42 is opened via second Close 45 contact 45a and be connected with the contact 44b of first switch 44.One end of second coil 43 is connected with second switch 45, the The other end of two coil 43 is connected with first switch 44.In addition, the contact 45b of second switch 45 is connected with neutral point 41.First Switch 44 is configured to be connected with contact 44a or contact 44b, and second switch 45 is configured to and contact 45a or contact 45b Connection.
In the winding switching circuit 4 formed in such a way, by switching first switch 44 and second switch 45, energy Enough being connected to first coil 42 and the second coil 43 to connect and switch between parallel connection.For example, as shown in Fig. 3 (B), by making First switch 44 is contacted with contact 44a, second switch 45 is contacted with contact 45a, so that 42 and second coil 43 of first coil It is connected in series.This circuit-mode is known as the first circuit-mode.In the first circuit-mode, two coils are relative to neutral point 41 are connected in series, so as to make dynamotor 20 produce big driving torque with the slow-speed of revolution.
On the other hand, as shown in Fig. 3 (C), by making first switch 44 be contacted with contact 44b, second switch 45 is made with connecing Point 45b is contacted, so that first coil 42 is connected in parallel with the second coil 43.The circuit-mode is known as second circuit pattern. In second circuit pattern, two coils are connected in parallel relative to neutral point 41, although so that the driving of dynamotor 20 turns Square reduces, but can suppress the counter electromotive force of dynamotor 20.Therefore, even low-voltage, dynamotor can also be made 20 drivings are untill high rotating speed.Also, in Fig. 3 (B) and Fig. 3 (C), although illustrating cutting for the circuit of the phase in three-phase Change, but other two-phases also carry out the same switching action.
Winding switching circuit 4 according to the present embodiment, can utilize two switches (first switch 44 and second switches 45) connection relation of two windings (42 and second coil 43 of first coil) is switched between series connection and parallel connection, so as to Enough change the driving torque of dynamotor 20.Especially, which is switched according to engine speed, so that Appropriate necessary driving torque can be produced in the range of big engine speed.
For example, when engine 1 changes to the rotating state of relative low speeds from state without spin, 4 quilt of winding switching circuit It is switched to the first circuit-mode.Thus, the generation of dynamotor 20 overcomes the opposite of the inertia of bent axle 10 (with reference to Fig. 1 or Fig. 2) Larger driving torque.Therefore, it is possible to realize the driving to dynamotor 20 in slow-speed of revolution domain.
On the other hand, in the case where engine speed exceedes defined rotating speed, winding switching circuit 4 is switched to second Circuit-mode.Thus, low driving torque is produced in dynamotor 20, which suppresses the generation of counter electromotive force It is relatively low.Therefore, it is possible to realize the driving to dynamotor 20 in high rotational domain.In this way, made according to engine speed The output torque change of dynamotor 20, can be in the wide rotary speed area from state without spin to middle and high rotational domain The driving (rotation driving of bent axle 10) of interior assisted engine 1.
Then, illustrated with reference to the relation between drivings (auxiliary) of the Fig. 4 to engine speed and dynamotor.Figure 4 be the figure for representing the relation between engine speed and engine driving control.Especially, example when Fig. 4 (A) represents to accelerate Son, example when Fig. 4 (B) represents to slow down.In addition, in Fig. 4, the arrow of solid line represents shape when dynamotor is driven State, the arrow of dotted line represent the state when driving of dynamotor stops.Also, in the driving withholding period of dynamotor Between, in dynamotor, implement by the rotation of bent axle " Regeneration control " that generates electricity.
As shown in Fig. 4 (A), first, if starter switch is switched on, dynamotor 20 (with reference to Fig. 2) is driven.This When, winding switching circuit 4 is switched to the first circuit-mode (with reference to Fig. 3) (high torque (HT) is low rotary-type).Therefore, it is possible to using high Torque actuated bent axle 10 rotates (with reference to Fig. 2).Engine speed slowly raises, if reaching the first rotating speed that engine starts to start N1, then stop the driving of dynamotor 20, the proceed-to-send of engine 1.Herein, engine, which starts, represents to start common combustion Material injection and igniting.
If engine 1 starts and stops the driving of dynamotor 20, winding switching circuit 4 is switched to second circuit Pattern (low torque height is rotary-type).If in addition, opening throttle, engine speed only passes through common fuel injection and igniting And improve.If engine speed reaches the second rotating speed N2 more than the first rotating speed N1, automatic clutch 24 connects 10 side of bent axle With 26 side of driving wheel.Thus, the rotation of drive shaft 10 can be delivered to 26 side of driving wheel (variable-speed motor 25), and vehicle starts running.
At this time, dynamotor 20 is driven.As noted previously, as winding switching circuit 4 is switched to second circuit mould Formula, therefore the driving of 20 assisted engine of dynamotor can be utilized untill high rotational domain.Also, if engine speed reaches To the 4th rotating speed N4 more than the second rotating speed N2, then dynamotor 20 is stopped driving.4th rotating speed N4 can for example be set Obtained engine speed when for accelerator open degree being fully open.
In this way, by after the connection of automatic clutch 24, i.e. by driving dynamotor after vehicle starts running 20, so as to the region aids engine driving risen in car speed.That is, vehicle can be aided in dynamotor 20 Acceleration.Therefore, occupant can obtain the acceleration sensation of the engine-driven auxiliary of supporter, furthermore it is possible to reduce fuel spray Penetrate, improve efficiency of combustion.
Also, in the example of Fig. 4 (A), when engine speed is between the first rotating speed N1 and the second rotating speed N2, i.e. Engine arrives this period before automatic clutch 24 is connected, switching winding switching circuit 4 after starting.Therefore, it is possible to The driving torque of dynamotor 20 is changed when the driving of dynamotor 20 stops, dynamotor 20 can driven afterwards When, prevent violent cogging.
In addition, under 1 powered state of engine, when the driving of dynamotor 20 stops, ECU2 is to electronic hair Motor 20 (inverter 23) is controlled, so as to be filled with the rotation by bent axle 10 and the motional electromotive force again that generates to battery 22 Electricity.Thereby, it is possible to effectively recycle the rotating energy of engine 1.
Subsequently the situation of deceleration is illustrated.In Fig. 4 (B), it is assumed that such a case：Automatic clutch is connected Connect, slow down when driving with defined speed.As shown in Fig. 4 (B), for example, declining in the braking maneuver by occupant and speed And in the case that engine speed declines, dynamotor 20 is not driven (driving stops).At this time, in dynamotor In, implement by the rotation of bent axle " Regeneration control " that generates electricity.
If engine speed slowly declines, so that engine speed is less than the threeth rotating speed N3 smaller than the second rotating speed N2, then Automatic clutch 24 releases the connection of 10 side of bent axle and 26 side of driving wheel (variable-speed motor 25).That is, the rotation of bent axle 10 is no longer passed It is delivered to 26 side of driving wheel.This is because in the structure of automatic clutch 24, clutch connects and the opportunity of releasing has hysteresis Caused by property.
Also, in (engine speed be less than the 3rd rotating speed N3 before) before the connection of automatic clutch 24 is released from, in throttle In the case of being opened and (further accelerating), dynamotor 20 is driven, so that assisted engine drives.On the other hand, automatic After the connection of clutch 24 is released from, even if throttle is opened, the driving of dynamotor 20 also keeps stopping.Connect in clutch Further accelerating after releasing is connect, before engine speed reaches the second rotating speed N2, engine speed only passes through common fuel Spray and light a fire to improve.Then, if engine speed reaches the second rotating speed N2, automatic clutch 24 is again coupled to bent axle 26 side of 10 sides and driving wheel.Hereafter, if throttle continues to open, aid in accelerating by the driving of dynamotor 20.
In this way, in the case of automatic clutch 24 is connected, dynamotor 20 is driven according to throttle operation, so that It assisted engine can be driven when further accelerating, can effectively obtain accelerating to feel.
In addition, for example stop in vehicle because of red signal, and the halted state (state that speed is zero) of vehicle continues In the case of stipulated time, engine driving stops (implementation idling flameout).In this case, preparation motivation 1 is again subject to Start, (high torque (HT) is low by the first circuit-mode is switched to from second circuit pattern (low torque height is rotary-type) for winding switching circuit 4 It is rotary-type).Then, in the case where signal lamp switchs to green and then carries out throttle operation, dynamotor 20 is being enhanced drive Driven in the state of dynamic torque.Thereby, it is possible to reach engine start start the first rotating speed N1 before assisted engine drive It is dynamic.
In this way, the driving torque by changing dynamotor 20 in idling flameout, can suitably carry out engine The auxiliary restarted.
Then, the relation between cell voltage and engine driving control is illustrated with reference to Fig. 5.Fig. 5 is to represent electricity The figure of relation between cell voltage and engine driving control.Fig. 5 (A) is to represent that cell voltage is put out with motor auxiliary and idling The figure of the relation of fire.Fig. 5 (B) is to represent the figure that cell voltage changes over time.In Fig. 5 (B), transverse axis represents time, the longitudinal axis Represent cell voltage.In Fig. 4, the example of the driving of dynamotor is controlled to be said to not being related to the voltage of battery It is bright, but in Figure 5, to consider the voltage of battery and control the example that the driving of dynamotor, idling flameout are controlled into Row explanation.
As shown in Fig. 5 (A), in the case of i.e. more than first voltage V1 on the basis of cell voltage, idling can be implemented and put out Fire and auxiliary (using the high rotary-type driving torque driving dynamotor 20 (with reference to Fig. 2) of low torque).In addition, in battery In the case that voltage is less than first voltage V1, does not implement to aid in, can only implement idling flameout.Also, implement auxiliary until In the case that cell voltage is less than first voltage V1, the driving of dynamotor 20 stops.
In addition, in the case where cell voltage is less than the second voltage V2 lower than first voltage V1, does not implement idling yet and put out Fire.In this way, based on cell voltage to determine whether implementing idling flameout and auxiliary, so as to suppress dead battery.
Then, an example changed over time of the cell voltage of the driving with dynamotor 20 is illustrated. As shown in Fig. 5 (B), cell voltage is controlled as：On the basis of first voltage V1, in the second voltage V2 less than first voltage and Discharge and recharge between tertiary voltage V3 more than first voltage V1.
For example, as shown in Fig. 5 (B), if in the state of cell voltage is tertiary voltage V3, in T0, connection starter is opened Close, then dynamotor 20 is driven, so that cell voltage is begun to decline.If then in T1 engine start start (start Machine rotating speed=N1), then cell voltage drops to the voltage of slightly above second voltage V2.
After engine starts, the driving of dynamotor 20 stops, and the charging of battery 22 starts.Thus, cell voltage is slow Slow rise, is finally increased to tertiary voltage V3.At this time, the driving torque of dynamotor 20 is altered to " the high rotation of low torque Type ".
Then, it is electronic using the driving torque driving after change if connecting automatic clutch 24 (with reference to Fig. 2) in T2 Generator 20.Thus, cell voltage drastically declines.Also, at this time, in the case where cell voltage is less than first voltage V1, electricity The driving of dynamic generator 20 stops.Then, the charging of battery 22 is implemented.In this way, while cell voltage is monitored, while controlling electronic The driving of generator 20, so as to prevent dead battery, additionally it is possible to be appropriately carried out engine-driven auxiliary.
Then, illustrated with reference to engine driving controls of the Fig. 6 to Fig. 8 to present embodiment.Fig. 6~Fig. 8 is to represent The figure of the engine driving control flow of present embodiment.In following each flow, if being not particularly illustrated, main body is judged For ECU.Also, when controlling beginning, the driving torque of dynamotor is set as " high torque (HT) is low rotary-type ".In addition, In Fig. 6 and Fig. 7, dynamotor is marked with " motor ".
As shown in fig. 6, if control starts, in step ST101, judge whether starter switch (starter SW) connects Whether logical or accelerator is opened." accelerator opening " state representation shown here 1 is restarted from idling flameout to engine Situation.
In situation (the step ST101 that starter switch is connected or accelerator is opened：It is) under, carry out step ST102's Processing.In starter switch access failure, situation (step ST101 that accelerator is also not switched on：It is no) under, repeat step The processing of ST101.
In step ST102, the driving torque driving dynamotor 20 of " high torque (HT) is low rotary-type " is used, subsequently into Step ST103.In step ST103, judge whether engine speed reaches the first rotating speed N1, i.e. whether engine has started It is dynamic.ECU2 calculates engine speed by the output valve of crankshaft sensor 27, and compares the engine speed and the first rotating speed N1.
(the step ST103 in the case where engine speed reaches the first rotating speed N1：It is), then enter step the place of ST104 Reason.Situation (the step ST103 of the first rotating speed N1 (being less than N1) is not up in engine speed：It is no) under, repeat step ST103's Processing.
In step ST104, motor driving stops.Hereafter, it is electronic and the regeneration generated with the rotation by bent axle 10 Gesture implements the charging of battery 22.Then, ST105 is entered step.In step ST105, winding switching circuit 4 is by electric from first Road pattern switching is to second circuit pattern.Thus, the driving torque of dynamotor 20 is changed from " high torque (HT) is low rotary-type " To " low torque height is rotary-type ".
Then, ST106 is entered step.In step ST106, judge whether engine speed reaches the second rotating speed N2. Engine speed reaches situation (the step ST106 of the second rotating speed N2：It is) under, enter step the processing of ST107.Turn in engine Speed is not up to situation (the step ST106 of the second rotating speed N2 (being less than N2):It is no) under, the processing of repeat step ST106.
As shown in fig. 7, in step ST107, it is determined as that automatic clutch 24 has connected, and enter step ST108.In step In rapid ST108, judge whether engine acceleration is more than setting.ECU2 is calculated by the exporting change of crankshaft sensor 27 Go out engine acceleration (change rate of engine speed), and compare the engine acceleration and setting.
It is situation (step ST108 more than setting in engine acceleration：It is) under, enter step the processing of ST109. It is less than situation (the step ST108 of setting in engine acceleration：It is no) under, enter step the processing of ST111.
In step ST109, judge whether cell voltage is more than first voltage V1 using ECU2.It is in cell voltage Situation (the step ST109 of more than first voltage V1：It is) under, enter step the processing of ST110.It is less than first in cell voltage Situation (the step ST109 of voltage V1:It is no) under, enter step the processing of ST111.
In step ST110, dynamotor 20 is driven with the driving torque of " low torque height is rotary-type " after change, And enter step the processing of ST111.In step ST111, judge whether engine speed is in the 3rd rotating speed N3 and the 4th turn Between fast N4.
Situation (the step ST111 between the 3rd rotating speed N3 and the 4th rotating speed N4 is in engine speed：It is) under, return to The processing of step ST108.It is not in engine speed between the 3rd rotating speed N3 and the 4th rotating speed N4, i.e., engine speed is less than 3rd rotating speed N3, or situation (the step ST111 more than the 4th rotating speed N4：It is no) under, enter step the processing of ST112.
In step ST112, the driving of dynamotor 20 stops, and enters step the processing of ST113.In step In ST113, judge whether engine speed is less than the 3rd rotating speed N3.In situation (step of the engine speed less than the 3rd rotating speed N3 Rapid ST113：It is) under, enter step the processing of ST114.In the situation (step that engine speed is more than the 3rd rotating speed N3 ST113：It is no) under, enter step the processing of ST111.
As shown in figure 8, in step ST114, it is determined as that the connection of automatic clutch 24 has been released from, and enter step The processing of ST115.In step ST115, judge that vehicle stops whether the state that speed is zero continue for the stipulated time.ECU2 Speed is detected by the output valve of vehicle speed sensor 28, if it is detected that speed is zero, then starts timer.
The state for being zero in speed continue for situation (the step ST115 of stipulated time：It is) under, the first of idling flameout Condition is set up, and enters step the processing of ST116.The state for being zero in speed does not continue situation (the step ST115 of stipulated time： It is no) under, enter step the processing of ST117.
In step ST116, judge whether cell voltage is more than second voltage V2.It is second voltage V2 in cell voltage Situation above (switch ST116：It is) under, the second condition of idling flameout is set up, and enters step the processing of ST118.In battery Voltage is less than situation (the step ST116 of second voltage V2：It is no) under, the condition of idling flameout is invalid, returns to step ST115's Processing.
In step ST117, judge whether engine speed is less than the second rotating speed N2.It is less than second turn in engine speed Situation (the step ST117 of fast N2：It is) under, return to the processing of step ST115.It is feelings more than second rotating speed in engine speed Condition (step ST117：It is no) under, return to the processing of step ST107.
In step ST118, winding switching circuit 4 is by from second circuit pattern switching to the first circuit-mode.Thus, it is electric The driving torque of dynamic generator 20 is altered to " high torque (HT) is low rotary-type " from " low torque height is rotary-type ".Then, in step In ST119, implement idling flameout, control terminates.Also, the order of step ST118 and step ST119 are not limited to above-mentioned feelings Condition, sequentially can be opposite.
As described above, according to the present embodiment, it is winding switching mode to make dynamotor 20, according to engine speed Driving torque is changed into (setting) and arrives " high torque (HT) is low rotary-type " or " low torque height is rotary-type ", so as in engine speed A wide range of interior assisted engine driving.Especially, the driving torque of " low torque height is rotary-type " is used after clutch connection Dynamotor 20 is driven, so as to the region aids engine driving risen in car speed.As a result, occupant can The acceleration sensation with engine-driven auxiliary is obtained, can realize the raising of efficiency of combustion.
Also, the present invention is not limited to the above embodiment, but it can make various changes and implement.In above-mentioned reality Apply in mode, be not limited to size shown in the drawings, shape etc., can be fitted in the range of the effect of the present invention is played Work as change.In addition, the scope without departing from the purpose of the present invention, it becomes possible to carry out appropriate change and implementation.
For example, in the above-described embodiment, the dynamotor 20 being integrally formed with motor and generator is sent out to start Motivation 1, but it is not limited to the structure.Motor and generator can also be set respectively, then play engine 1 with motor It is dynamic.
In addition, in the above-described embodiment, winding switching circuit 4 switches electricity with first switch 44 and second switch 45 Road pattern, but it is not limited to the structure.The switching of circuit-mode can also for example use relay, MOSFET (Metal- Oxide-Semiconductor Field-Effect Transistor:Metal oxide semiconductcor field effect transistor) control System.
In addition, in the above-described embodiment, the circuit of dynamotor 20 is by including serial-parallel switching part The circuit that forms of so-called three-phase Y wiring, but be not limited to the structure.The circuit of dynamotor 20 for example can also be by Centre tap circuit is formed.
In addition, in the above-described embodiment, it is configured to winding switching circuit 4 by the quantity of winding between one and three Switching, but it's not limited to that for the quantity of winding, but can suitably be changed.
In addition, in the above-described embodiment, using the separated structure of ECU2 and inverter 23, but it is not limited to the knot Structure.ECU2 and inverter 23 can be integral structures.
In addition, in the above-described embodiment, in the flow shown in Fig. 6~Fig. 8, to speed and cell voltage this two Judge that the situation of condition that idling flameout is set up is illustrated, but it's not limited to that.The condition that idling flameout is set up It can also be judged with either one of speed and cell voltage.
In industry possibly also with
As discussed above, the present invention has the effect that：Can be in the drive of a wide range of interior assisted engine It is dynamic, it is useful to the hybrid electric vehicle for possessing automatic clutch especially so as to fulfill the raising of efficiency of combustion.

Claims (8)

  1. A kind of 1. engine driving control system, it is characterised in that including：
    Dynamotor, the dynamotor have the rotating motor function of driving bent axle and are given birth to by the rotation of the bent axle Into the generator function of motional electromotive force again；
    The rotation of the bent axle corresponding to engine speed is delivered to driven wheel side by automatic clutch, the automatic clutch； And
    Control unit, driving of the control unit to engine and the dynamotor are controlled,
    If engine speed reaches starts the second rotating speed of the first rotating speed of starting greatly than engine, the automatic clutch connects The crankshaft side and the driven wheel side are connect,
    Described control unit is driving the dynamotor after engine speed reaches first rotating speed, described in stopping The driving of dynamotor and the driving torque for changing the dynamotor, if engine speed reaches second rotating speed, Then described control unit drives the dynamotor using the driving torque after change.
  2. 2. engine driving control system as claimed in claim 1, it is characterised in that
    If engine speed is less than threeth rotating speed smaller than second rotating speed, the automatic clutch releases the crankshaft side With the connection of the driven wheel side,
    If engine speed is less than the 3rd rotating speed, described control unit stops the driving of the dynamotor.
  3. 3. engine driving control system as claimed in claim 2, it is characterised in that
    In the case where connection of the engine speed more than first rotating speed and the automatic clutch is released from, the control Unit changes the driving torque of the dynamotor.
  4. 4. engine drive system as claimed any one in claims 1 to 3, it is characterised in that
    If engine speed reaches fourth rotating speed bigger than second rotating speed, described control unit stops the dynamoelectric and power generation The driving of machine.
  5. 5. engine driving control system as claimed in claim 1, it is characterised in that
    Battery is further included, which provides electric power to the dynamotor, and stores the regeneration from the dynamotor Electromotive force,
    During the driving of the dynamotor stops, described control unit is controlled the dynamotor, passes through The motional electromotive force again charges the battery.
  6. 6. engine driving control system as claimed in claim 5, it is characterised in that
    In the case where the voltage of the battery is less than first voltage, described control unit stops the drive of the dynamotor It is dynamic.
  7. 7. engine driving control system as claimed in claim 6, it is characterised in that
    In the case where engine speed continue for the stipulated time less than the halted state of first rotating speed and vehicle, the control Unit processed is implemented to stop the idling flameout of the driving of the engine.
  8. 8. engine driving control system as claimed in claim 7, it is characterised in that
    In the case where the voltage of the battery is less than the second voltage lower than the first voltage, described control unit is not implemented The idling flameout.
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DE102017218013B4 (en) 2024-05-08

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