CN1847643A - Motor vehicle and control method of motor vehicle - Google Patents
Motor vehicle and control method of motor vehicle Download PDFInfo
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- CN1847643A CN1847643A CNA2006100720421A CN200610072042A CN1847643A CN 1847643 A CN1847643 A CN 1847643A CN A2006100720421 A CNA2006100720421 A CN A2006100720421A CN 200610072042 A CN200610072042 A CN 200610072042A CN 1847643 A CN1847643 A CN 1847643A
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Images
Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—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
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
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- 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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/065—Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart
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- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/44—Drive Train control parameters related to combustion engines
- B60L2240/445—Temperature
-
- 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
-
- 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
- B60W2510/0671—Engine manifold pressure
-
- 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
- B60W2510/068—Engine exhaust temperature
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- 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
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
-
- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Automation & Control Theory (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Hybrid Electric Vehicles (AREA)
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
In a hybrid automobile, when the exhaust gas purifying catalyst is judged to be in a proper state at step S112, the motoring is continued to reduce an intake air volume into cylinders until intake pipe pressure P reaches a predetermined negative pressure Pref and then combustion control is started. On the other hand, when the exhaust gas purifying catalyst is judged not to be in the proper state at step S112, the combustion control is started even if the intake pipe pressure P is not smaller than Pref. Namely, the combustion control is early performed when catalyst temperature is in a low temperature condition wherein exhaust emission control capacity is lowered or when the catalyst temperature is in a high temperature condition wherein deterioration is accelerated through exposure to air, and therefore the defect caused due to the condition of the catalyst during the motoring such as the degradation of emission and the acceleration of deterioration of the exhaust gas purifying catalyst can be inhibited while primarily aiming at reducing shock in starting of the engine.
Description
Technical field
The present invention relates to a kind of automobile and controlling method thereof.
Background technique
In the past, in comprising the automobile of internal-combustion engine, propose a kind of when halted state makes engine starting, carry out that fuel sprays and burning control such as igniting before, by dragging (モ one リ Application グ) guarantee to burn after the abundant negative pressure in intake lines of combustion engines scheme (for example the spy opens the 2001-304007 communique) of control.According to this automobile owing to before the suction tude of internal-combustion engine and the air quantity in the cylinder reduce, make the burning control lag, with just drag after spray with the situation of igniting and compare the impact in the time of can reducing starting with regard to carrying out fuel.
But in above-mentioned automobile, though the impact when having considered starting does not have the catalyst state of the exhaust gas purification catalyst that consideration purifies the exhaust of internal-combustion engine.That is, when controlling by taking fire after dragging the abundant negative pressure of guaranteeing in the intake lines of combustion engines, the elapsed time of burning control postpones.Thereby, when the exhaust gas purification catalyst is in low-temperature condition, because the exhaust gas purification catalyst does not generally also have activate, can not bring into play sufficient catalytic control ability, thereby when in suction tude or cylinder, having unburned fuel, fuel for example takes place during internal-combustion engine is out of service from the sparger that carries out fuel and spray at leisure under the situation such as leakage phenomenon, worry this unburned fuel by the exhaust gas purification catalyst can not fully purify during prolong.And, during dragging internal-combustion engine, air in suction tude and the cylinder directly is transported to the exhaust gas purification catalyst, but when the exhaust gas purification catalyst is in the condition of high temperature following time, if the elapsed time of burning control postpones, then since the exhaust gas purification catalyst to be exposed to the airborne time elongated, worry to promote its deterioration.As mentioned above, because the difference of the catalyst state of exhaust gas purification catalyst, by making the burning control lag, worry can cause deterioration of emission, promotes the problems such as deterioration of exhaust gas purification catalyst.
Summary of the invention
For addressing the above problem proposition the present invention, the purpose of this invention is to provide a kind of automobile and controlling method thereof, impact when it can make engine starting reduces, and can suppress the problem that caused by the catalyst state.
The present invention adopts following proposal to realize above-mentioned purpose.
That is, automobile of the present invention comprises:
Can drag the actuator of internal-combustion engine;
The exhaust gas purification catalyst that the exhaust of described internal-combustion engine is purified;
The catalyst condition checkout gear that the state of described exhaust gas purification catalyst is detected;
Judge whether the suction air quantity in the cylinder that sucks described internal-combustion engine is in the interior air quantity decision maker of cylinder of a small amount of scope of regulation;
Starting controller for internal combustion engine, make described internal-combustion engine when halted state is started, when the state of the described exhaust gas purification catalyst that is detected by described catalyst condition checkout gear is the regulation appropriate state, drag described internal-combustion engine by described actuator, the air quantity decision maker is judged to be after the suction air quantity that sucks in the described cylinder is in a small amount of scope of described regulation in by described cylinder, begin the burning of described internal-combustion engine, and when not being in described regulation appropriate state by the detected described exhaust gas purification catalyst of described catalyst condition checkout gear, drag described internal-combustion engine by described actuator, the air quantity decision maker is judged to be before the suction air quantity that sucks in the described cylinder is in a small amount of scope of described regulation in by described cylinder, begins the burning of described internal-combustion engine.
In this automobile, making internal-combustion engine when halted state is started, when the exhaust gas purification catalyst is in appropriate state, drag internal-combustion engine, suck after suction air quantity in the cylinder is in a small amount of scope of regulation the burning control of beginning internal-combustion engine.Thereby the impact can reduce engine starting the time.On the other hand, when the state of exhaust gas purification catalyst is not in appropriate state, before the suction air quantity in the cylinder that sucks internal-combustion engine becomes in a small amount of scope of regulation, the burning control of beginning internal-combustion engine.Though thereby the impact when being difficult to reduce engine starting, can suppress the problem that delay that inappropriate state by the exhaust gas purification catalyst causes, is accompanied by the burning control elapsed time produces in dragging.And, stipulate a small amount of scope, for example, impact when can be used as the starting that when control of burning produce after dragging not to the driver and bring suction air quantity in the suction cylinder of degree of discomfort, be determined by experiment.
In automobile of the present invention, a small amount of scope of described regulation can be the suction air quantity that is equivalent in the suction cylinder of described internal-combustion engine when idle.So, then not stall of internal-combustion engine can successfully be started, the impact in the time of can reducing starting.
In automobile of the present invention, the air quantity decision maker also can be to utilize the suction press of above-mentioned internal-combustion engine whether to become the regulation negative pressure to judge whether the suction air quantity that sucks in the above-mentioned cylinder becomes the suction press decision maker of a small amount of scope of afore mentioned rules in the above-mentioned cylinder.Suck the interior suction air quantity of the cylinder more little tendency of suction press more at least owing to exist,,, can detect the suction air quantity by suction press is detected so there are dependency relation in suction air quantity and suction press.
Automobile of the present invention also can comprise:
Can drag the actuator of internal-combustion engine;
The exhaust gas purification catalyst that the exhaust of described internal-combustion engine is purified;
The catalyst condition checkout gear that the state of described exhaust gas purification catalyst is detected;
Judge whether the suction press of described internal-combustion engine becomes the suction press decision maker of regulation negative pressure;
Starting controller for internal combustion engine, make described internal-combustion engine when halted state is started, when the state of the described exhaust gas purification catalyst that is detected by described catalyst condition checkout gear is the regulation appropriate state, drag described internal-combustion engine by described actuator, be judged to be by described suction press decision maker after described suction press becomes described regulation negative pressure, begin the burning control of described internal-combustion engine, and when not being in described regulation appropriate state by the detected described exhaust gas purification catalyst of described catalyst condition checkout gear, drag described internal-combustion engine by described actuator, being judged to be by described suction press decision maker before described suction press becomes described regulation negative pressure, begin the burning control of described internal-combustion engine.
In this automobile, when halted state makes engine starting, when the state of exhaust gas purification catalyst is in appropriate state, drag internal-combustion engine, after suction press becomes the regulation negative pressure, then begin the burning control of internal-combustion engine.Thereby, the impact in the time of can reducing engine starting.On the other hand, when the state of exhaust gas purification catalyst is not in appropriate state, before the suction press of internal-combustion engine becomes the regulation negative pressure, the burning control of beginning internal-combustion engine.Though thereby the impact when being difficult to reduce engine starting, can suppress the inappropriate situation that delay that inappropriate state by the exhaust gas purification catalyst causes, is accompanied by the burning control elapsed time produces during dragging.And the regulation negative pressure for example, is impacted the pressure that does not bring the degree of discomfort to the driver when can be used as the starting that produces when burning control after dragging, and determines by experiment.
In automobile of the present invention, described regulation negative pressure can be used as and is equivalent to the suction press of described internal-combustion engine when idle.So, then not stall of internal-combustion engine can successfully be started, the impact in the time of can reducing starting.
In automobile of the present invention, above-mentioned suction press decision maker also can be to judge according to the parameter relevant with the suction press of above-mentioned internal-combustion engine whether the suction press of described internal-combustion engine becomes described regulation negative pressure.So just there is no need suction press is directly detected.This moment, above-mentioned parameter also can be dragging the time of the internal-combustion engine that undertaken by above-mentioned actuator.Because exist the time that drags long more, then suction press becomes the tendency of negative pressure more, so the time of dragging is the parameter relevant with suction press.
In automobile of the present invention, when what is called is not in described regulation appropriate state, can be meant when described exhaust gas purification catalyst is in the low-temperature condition of purifying ability deficiency.So, because when the low-temperature condition that the purifying ability of exhaust gas purification catalyst descends, control in advance takes fire, can prevent to be present in the suction tude of internal-combustion engine and the unburned fuel in the cylinder be not discharged to by the exhaust gas purification catalytic control in the outside air during long-term, can suppress deterioration of emission, even this moment, described low-temperature condition was exactly that the exhaust gas purification catalyst does not reach the state of activated temperature or reached the activated temperature state, the exhaust gas purification ability still is in the state than low degree, for example rule of thumb determines by repetition test.
In automobile of the present invention, when what is called is not in described regulation appropriate state, also can be meant to be in to be exposed under the airborne situation and easily during the condition of high temperature of deterioration at described exhaust gas purification catalyst.So, because when the high temperature of exhaust gas purification catalyst, the control that takes fire in advance, thereby can prevent that exhaust gas purification catalyst over-exposure from the air that is transported to the exhaust gas purification catalyst by dragging, can suppress the acceleration of the deterioration of exhaust gas purification catalyst.This moment, the described condition of high temperature was exactly the state of exhaust gas purification catalyst when being exposed to air in and when being in deterioration and quickening, for example by the experimental basis experience is definite repeatedly.
Automobile of the present invention also can be included in the internal-combustion engine stop control that the operation that makes described internal-combustion engine when the automatic stop condition of the internal-combustion engine of regulation is set up stops; When the automatic starting conditions of internal-combustion engine that is made the operation of described internal-combustion engine stop the back regulation by described internal-combustion engine stop control was set up, described starting controller for internal combustion engine made described internal-combustion engine start from halted state.Comprise carry out internal combustion engine operation stop automatically stopping and restarting owing to during travelling, repeatedly carry out the operation of internal-combustion engine repeatedly, so use of the present invention significant in the automobile with the automatic restart function.
In automobile of the present invention, at the run duration of described internal-combustion engine, when above-mentioned exhaust gas purification catalyst was not in the regulation appropriate state, above-mentioned internal-combustion engine stop control also can not make described internal-combustion engine stop.So, then can be reduced in the frequency that when the exhaust gas purification catalyst is not in appropriate state internal-combustion engine is restarted.
Automobile control method of the present invention comprises the steps:
(a) detect the state of the exhaust gas purification catalyst that the exhaust to internal-combustion engine purifies;
(b) make described internal-combustion engine when halted state is started, when the state at the detected described exhaust gas purification catalyst of described step (a) is the regulation appropriate state, drag described internal-combustion engine, after suction air quantity in the cylinder that sucks described internal-combustion engine is in a small amount of scope of regulation, begin the burning control of described internal-combustion engine, when the state at the detected described exhaust gas purification catalyst of described step (a) is not described regulation appropriate state, drag described internal-combustion engine, before suction air quantity in sucking described cylinder becomes in a small amount of scope of described regulation, begin the burning control of described internal-combustion engine.
In the controlling method of this automobile, making internal-combustion engine when halted state is started, when the exhaust gas purification catalyst is in appropriate state, drag internal-combustion engine, suck after suction air quantity in the cylinder is in a small amount of scope of regulation the burning control of beginning internal-combustion engine.Thereby the impact can reduce engine starting the time.On the other hand, when the state of exhaust gas purification catalyst is not in appropriate state, before the suction air quantity in the cylinder that sucks internal-combustion engine becomes in a small amount of scope of regulation, the burning control of beginning internal-combustion engine.Though thereby the impact when being difficult to reduce engine starting, can suppress the inappropriate situation that delay that inappropriate state by the exhaust gas purification catalyst causes, is accompanied by the elapsed time of burning control produces in dragging.And in this automobile control method, also can append step for the function that realizes the various constituent apparatus that above-mentioned automobile is included.
Automobile control method of the present invention comprises the steps:
(a) detect the state of the exhaust gas purification catalyst that the exhaust to internal-combustion engine purifies;
(b) make described internal-combustion engine when halted state is started, when the state at the detected described exhaust gas purification catalyst of described step (a) is the regulation appropriate state, drag described internal-combustion engine, after the suction press of described internal-combustion engine becomes the regulation negative pressure, begin the burning control of described internal-combustion engine, when the state at the detected described exhaust gas purification catalyst of described step (a) is not described regulation appropriate state, drag described internal-combustion engine by described actuator, before the suction press of described internal-combustion engine becomes described regulation negative pressure, begin the burning control of described internal-combustion engine.
In the controlling method of this automobile, making internal-combustion engine when halted state is started, when the exhaust gas purification catalyst is in appropriate state, drag internal-combustion engine, after suction press becomes the regulation negative pressure, the burning control of beginning internal-combustion engine.Thereby, the impact in the time of can reducing engine starting.On the other hand, when the state of exhaust gas purification catalyst is not in appropriate state, before the suction press of internal-combustion engine becomes the regulation negative pressure, the burning control of beginning internal-combustion engine.Though thereby the impact when being difficult to reduce engine starting, can suppress the inappropriate situation that delay that inappropriate state by the exhaust gas purification catalyst causes, is accompanied by the burning control elapsed time produces in dragging.And in this automobile control method, also can append step for the function that realizes the various constituent apparatus that above-mentioned automobile is included.
Description of drawings
Fig. 1 is the structural drawing that schematically shows the hybrid vehicle structure;
Fig. 2 is the structural drawing that schematically shows engine structure;
Fig. 3 is the flow chart of engine start control routine;
Fig. 4 illustrates to require the explanatory drawing of torque setting with the example of figure;
Time and torque command Tm1 when Fig. 5 is the expression engine start
*The plotted curve of relation;
Fig. 6 is the explanatory drawing of a nomographic example that is used for the rotation key element of mechanics ground explanation power distribution integration mechanism 30.
Embodiment
Hereinafter will describe embodiments of the invention with reference to the accompanying drawings.Fig. 1 is the structural drawing that hybrid vehicle 20 structures of one embodiment of the invention are shown.As shown in Figure 1, this embodiment's hybrid vehicle 20 comprises: motor 22, the motor that engine system integral body is controlled is with electronic control unit (motor EC) 50, be connected to as 3 shaft type power distribution integration mechanism 30 on the bent axle 26 of the output shaft of motor 22 by vibration damper 28, the motor M G1 that links to each other and can generate electricity with power distribution integration mechanism 30, be installed in as the reduction gear 35 on the gear ring axle 32a of the live axle that links to each other with power distribution integration mechanism 30, motor M G2 that links to each other with this reduction gear 35 and the mixed power electronic control unit 70 that hybrid vehicle 20 integral body are controlled.And as shown in Figure 2, hybrid vehicle 20 has the Cat Catalytic Converter 160 that exhaust is purified in the downstream side of motor 22.
Cat Catalytic Converter 160 is to link to each other with outlet pipe 123 and filled the parts of exhaust gas purification catalyst 161.The TWC Three Way Catalytic of using as exhaust gas purification catalyst 161 is by platinum (Pt) or palladium oxidation catalysts such as (Pd), rhodium reducing catalyst, cerium dioxide (CeO such as (Rh)
2) wait auxiliary catalyst to constitute.Thereby,, be included in CO in the exhaust and HC and be cleaned and be water (H by the effect of oxidation catalyst
2O) and carbon dioxide (CO
2), by the effect of reducing catalyst, be included in NOx in the exhaust and be cleaned and be nitrogen (N
2) and oxygen (O
2) etc.And the temperature transducer 162 that the temperature to exhaust gas purification catalyst 161 detects has been installed in Cat Catalytic Converter 160.
Though not shown, it is the microprocessor at center, the ROM that comprises storage processing program, the RAM of temporary storaging data, input/output port that Engine ECU 50 constitutes with CPU.This Engine ECU 50 is imported by the signal of the various sensors that input port will detect from the state to motor 22.Particularly, the suction air quantity of the vacuum transducer 148 that detects from the throttle opening of throttle position sensor 146, from suction air quantity to motor 22, from the pulse signal of CKP 140, from the catalyst temperature of temperature transducer 162 etc. by input port input Engine ECU 50.And pass through not shown output port, be used for the various control signals that motor 22 is driven from Engine ECU 50 outputs.Particularly, pass through output port, from Engine ECU 50 to actuator 136 output drive signals that closure 124 is driven, to sparger 126 output drive signals, to the incorporate spark coil 138 output control signals of igniter etc. of electrical spark taking place with making spark plug 130.And, Engine ECU 50 is electrically connected with electronic control unit 70 with mixed power, by with the control signal of electronic control unit 70 motor 22 being moved control from mixed power, simultaneously as required, the data relevant with motor 22 running statees are outputed to mixed power electronic control unit 70.
Power distribution integration mechanism 30 has the sun gear 31 of external gear, keep the planet carrier 34 of rotations freely and revolution with a plurality of small gears 33 of gear ring 32 engagements with a plurality of small gears 33 with the gear ring 32 of the internal gear of these sun gear 31 coaxial settings, with sun gear 31 engagements the time, and sun gear 31 and gear ring 32 and planet carrier 34 are constituted the planetary gears that carries out differential action as the rotation key element.For power distribution integration mechanism 30, when motor M G1 brings into play function as generator, from planet carrier 34 input, be allocated in sun gear 31 sides and gear ring 32 sides from the power of motor 22 according to its gear ratio, and when motor M G1 brings into play function as motor, from planet carrier 34 input, from the power of motor 22 and from sun gear 31 inputs, export to gear ring 32 sides from the power of motor M G1 comprehensive (coordinating ， System closes) back.Power to gear ring 32 outputs passes through gear mechanism 60 and differentiator 62 from gear ring axle 32a, finally exports to the driving wheel 63,63 of vehicle.
Motor M G1 and motor M G2 constitute and can be used as generator drive and can be used as electric motor driven known synchronous generator-motor, carry out the exchange of electric power by inverter 41,42 and storage battery 55.The line of electric force 54 that inverter 41,42 is connected with storage battery 55 constitutes as each inverter 41,42 shared positive electrode bus and negative pole bus, and the electric power of one of motor M G1, MG2 generating can be by another electrical consumption.In addition, motor M G1 makes motor 22 when outage state is started, the starting motor that rotates as the bent axle 26 that makes motor 22 and using.Motor M G1, MG2 each by motor with electronic control unit (below be called motor ECU) 40 drive controlling.The necessary signals that is used for drive controlling motor M G1, MG2 to motor ECU40 input, for example go out by not shown current sensor senses from the signal of the rotational position detecting sensor 43,44 of the rotational position of the rotor that detects motor M G1, MG2 or input, be applied to phase current on motor M G1, the MG2 etc., by motor ECU40 to inverter 41,42 output switch control signals.Motor ECU40 communicates by letter with electronic control unit 70 with mixed power, according to the control signal of using electronic control unit 70 from mixed power, drive controlling motor M G1, MG2, and as required the data relevant with the running state of motor M G1, MG2 are exported with electronic control unit 70 to mixed power.
It is the microprocessor at center that mixed power constitutes with CPU72 with electronic control unit 70, except CPU72, also has the ROM74 of storage processing program, temporarily stores the RAM76 of data, not shown input/output port and COM1.Fire signal from ignition switch 80, shift position SP from the shift position sensor 82 of the operating position that detects speed change lever 81, accelerator opening Acc from the accelerator pedal position sensor 84 of the depression amount that detects accelerator pedal 83, from the brake pedal position BP of the brake pedal position sensor 86 of the depression amount that detects brake petal 85, from the vehicle velocity V of vehicle speed sensor 87 etc. by input port input mixed power with electronic control unit 70.Mixed power, is connected with Engine ECU 50, motor ECU40, storage battery ECU56 by COM1 as aforementioned with electronic control unit 70, carries out the exchange of various control signals or data with Engine ECU 50, motor ECU40, storage battery ECU56.
The hybrid vehicle 20 of the present embodiment of structure like this, based on the driver to corresponding accelerator opening Acc of the depression amount of accelerator pedal 83 and vehicle velocity V, calculating should be to the moment of torsion that requires as the gear ring axle 32a of live axle output, will requiring the corresponding mode from demanded driving force to gear ring axle 32a output that want of moment of torsion, motor 22 and motor M G1 and motor M G2 are moved control with this.Operation control as motor 22 and motor M G1 and motor M G2, comprise: the torque conversion operating mode, wherein, when moving control motor 22 from the mode of motor 22 output, to carry out torque conversion with motor M G1 and motor M G2 and the mode drive controlling motor M G1 and the motor M G2 that export to gear ring axle 32a by power distribution integration mechanism 30 from the whole of the power of motor 22 outputs with the power of wanting demanded driving force to match; Discharge and recharge operating mode, wherein, to discharge and recharge power that required electric power sum matches when moving control motor 22 from the mode of motor 22 outputs with wanting demanded driving force and storage battery 55, along with discharging and recharging of storage battery 55, along with a part of by power distribution integration mechanism 30 and torque conversion due to motor M G1 and the motor M G2, with mode drive controlling motor M G1 and the motor M G2 that wants demanded driving force to export to gear ring axle 32a from the whole of the power of motor 22 output or its; With the motor operating mode, wherein, with the operation of shutting engine down 22 and will be from motor M G2 move control with the power of wanting demanded driving force to match to the mode of gear ring axle 32a output.
Hereinafter to the action of the hybrid vehicle 20 of this structure, particularly describe from the action to the torque conversion operating mode or when discharging and recharging the operating mode transition, when the operation halted state is started motor 22 of motor operating mode.Fig. 3 illustrates by the flow chart of mixed power with an example of the performed starting control routine of electronic control unit 70.Carried out this routine at 22 o'clock piloting engine.
When carrying out the starting control routine, mixed power with the CPU 72 of electronic control unit 70 at first import accelerator opening Acc from accelerator pedal position sensor 84, from rotational speed N m1, the Nm2 of the rotational speed N e of the vehicle velocity V of vehicle speed sensor 87, motor 22 and motor M G1, MG2, control desired data (step S100) from the export-restriction Wout that drags beginning elapsed time t, storage battery 55 of motor 22 etc.At this, the rotational speed N e of motor 22 is exactly will be according to the result that calculate from the signal of the CKP 140 that is installed on bent axle 26 via the rotating speed of communication from Engine ECU 50 inputs.And the rotational speed N m1 of motor M G1, MG2, Nm2 are that the result that will calculate according to the pivotal position by the rotor of pivotal position detecting sensor 43,44 detected motor M G1, MG2 is via the rotating speed of communication from motor ECU40 input.The timing time that beginning elapsed time t is exactly the start request from motor 22 of the input timer that (during starting) picks up counting when being performed that drags from motor 22.The export-restriction Wout of storage battery 55 will import via communicating by letter from storage battery ECU56 according to the data of being set by the residual capacity (SOC) of the battery temperature Tb of temperature transducer 57 detected storage batteries 55 and storage battery 55.
When like this imported data after, according to accelerator opening Acc and the vehicle velocity V imported, set the desired torque T r that requires of vehicle
*(step S102).In the present embodiment, pre-determine accelerator opening Acc and vehicle velocity V and require torque T r
*Relation, as require torque setting with figure be stored in advance in the ROM74, when having given accelerator opening Acc and vehicle velocity V, from the storage figure will require torque T accordingly
*Derive and setting above-mentioned requirements torque T r
*Fig. 4 shows and requires the example of torque setting with figure.
According to from dragging beginning elapsed time t, set the torque command Tm1 of motor M G1 then
*(step S104).In the present embodiment, pre-determine from dragging beginning elapsed time t and torque command Tm1
*Between relation, set with scheming as torque command and to be stored in advance in the ROM74, when having given time t, from the figure that is stored with the torque command Tm1 of correspondence
*Derive, and the torque command Tm1 of setting motor M G1
*Fig. 5 shows torque command and sets an example using figure.As shown in the figure, the torque command Tm1 of motor M G1
*Set for from the moment (t=0) beginning of the start request of carrying out motor 22 and slowly become big, behind time t1, become bigger prescribed torque T1, after this slowly diminishing, become prescribed torque T2 later on simultaneously at time t3 from the time t2 beginning of having passed through the stipulated time.Prescribed torque T1 and stipulated time, (time t1～t2) was set at moment of torsion and the time that the rotational speed N e that can make motor 22 rises rapidly, is determined by the performance of motor 22 and storage battery 55 etc.And prescribed torque T2 is set at and can suppresses to drag the moment of torsion that the rotational speed N e that consumes electric power and make motor 22 further rises, and determined by the performance of motor 22 and storage battery 55 etc.And, the torque command Tm1 of motor M G1
*Be set at after the rotating speed of motor 22 arrives regulation starting speed Nstart the moment of torsion that motor 22 is rotated continuously with this starting speed Nstart.
Whether the rotational speed N e that judges motor 22 then is more than or equal to predetermined regulation starting speed Nstart (step S106).After the starting indication of consideration motor 22 just has been performed now, because the rotational speed N e of motor 22 is less than starting speed Nstart, in step S106, make negative judgement, calculate as can be by following formula (1) from the torque limited Tmax of the upper torque limit of motor M G2 output, that is, the export-restriction Wout of storage battery 55 and the consumption electric power of motor M G1 (are about to torque command Tm1
*Numerical value after multiplying each other with motor speed Nm1) difference is divided by the rotational speed N m2 (step S116) of motor M G2, the torque T of usage requirement simultaneously r
*, motor M G1 torque command Tm1
*, power distribution integration mechanism 30 gear than the gear of ρ and reduction gear 35 than Gr, calculate as should be by formula (2) from the interim Motor torque Tm2tmp (step S118) of the moment of torsion of motor M G2 output.Torque limited value Tmax and the interim Motor torque Tm2tmp that is calculated compared the torque command Tm2 who is set at motor M G2 that numerical value is little
*(step S120).By the above-mentioned torque command Tm2 that sets motor M G2 like that
*, use to offset by utilizing motor M G1 to drag motor 22 to act on as the counter-force moment of torsion on the gear ring axle 32a of live axle from the moment of torsion of motor M G2 output, simultaneously, can require torque T r on the gear ring axle 32a with outputing to
*Export as the moment of torsion in the export-restriction Wout scope that is limited in storage battery 55.
Tmax＝(Wout-Tm1
*/Nm1)/Nm2...(1)
Tm2tmp＝(Tr
*+Tm1
*/ρ)/Gr...(2)
If use the nomogram of Fig. 6, then can easily derive formula (2).In the drawings, the S axle on the left side represents that the rotational speed N m1 of motor M G1 is the rotating speed of sun gear 31, the C axle represents that the rotational speed N e of motor 22 is the rotating speed of planet carrier 34, and the R axle represents that be the rotational speed N r of gear ring 32 by the rotational speed N m2 of motor M G2 divided by the gear of reduction gear 35 numerical value after than Gr.And the arrow on S axle, C axle and the R axle is represented the moment of torsion that carried by each bearing.Because motor 22 is in the operation halted state at present, the moment of torsion of motor 22 does not act on the planet carrier 34.By moment of torsion (the torque command Tm1 that acts on the motor M G1 on the sun gear 31
*), support the bent axle 26 of motor 22.Because this moment, the counter-force torsional interaction was on gear ring axle 32a, in order to offset this counter-force moment of torsion, from motor M G2 output offset moment of torsion (=-Tm1
*/ ρ).
Torque command Tm1 as setting motor M G1 like this, MG2
*, Tm2
*The time, with the torque command Tm1 that sets
*, Tm2
*Be transported to (step S122) among the motor ECU40.Received torque command Tm1
*, Tm2
*Motor ECU40 carry out the switch control of the switching element of inverter 41,42, thereby with torque command Tm1
*To motor M G1 drive, simultaneously with torque command Tm2
*G2 drives to motor M.Judge whether perfect combustion (intact quick-fried) (step S124) of motor 22 then.At this, judge whether perfect combustion of motor 22, in the present embodiment, be to be undertaken by the determinating reference value the Nref whether rotating speed of judging motor 22 surpasses compared with the moving high regulation rotating speed of rotational speed N start.Because that consider now is the rotational speed N e of motor 22 when still not reaching starting speed Nstart, so the burning of motor 22 control is that fuel injection control and IGNITION CONTROL still do not begin, motor 22 does not have perfect combustion, returns step S100.
In the process of the processing of execution in step S100～S106 and step S116～S124 so repeatedly, as the rotational speed N e of motor 22 during more than or equal to regulation starting speed Nstart, then in step S106, make sure judgement, whether the suction air quantity in judging cylinder 150 becomes when a small amount of then, judges that whether suction press P is less than stipulating negative pressure Pref (step S108).In the present embodiment, the regulation negative pressure is set at and is equivalent to idle negative pressure.In the present embodiment, by judging from dragging beginning elapsed time t whether passed through the regulation transit time (for example 2～3 seconds), judge that whether suction press P is less than regulation negative pressure Pref.The described regulation transit time begins to reach the needed time till the regulation negative pressure Pref to suction press P from dragging exactly, is the empirical value of determining by testing repeatedly.The rotational speed N e that considers motor 22 has now just reached regulation starting speed Nstart, and then owing to do not pass through the stipulated time as yet from dragging beginning elapsed time t, suction press P does not reach regulation negative pressure Pref as yet, so make negative judgement in step S108.Judge then whether exhaust gas purification catalyst 161 is in appropriate state (step S112).This moment so-called appropriate state, in the present embodiment, be meant the state in the temperature province that is between low temperature reference value and the high temperature reference value, wherein, the low temperature reference value is the temperature threshold of exhaust gas purification ability for than low degree time of exhaust gas purification catalyst 161, and the high temperature reference value is meant when exhaust gas purification catalyst 161 and is exposed in the air, because the particle of exhaust gas purification catalyst 161 is grown up, surface area descends, and the temperature threshold when promoting the deterioration of exhaust gas purification catalyst.Situation when the catalyst temperature of the catalyst of consideration exhaust gas purification now 161 is between low temperature reference value and the high temperature reference value is then made sure judgement in step S112.After the processing of having carried out step S116～S122, in step S124, judge whether perfect combustion of motor 22.At this moment,, in step S124, make negative evaluation, return step S100 because motor 22 still before burning control beginning, does not have perfect combustion.Promptly, when exhaust gas purification catalyst 161 is in appropriate state, in suction tude 121, guarantee to continue to drag before the regulation negative pressure Pref, though the air in suction tude 121 and the cylinder 150 is carried to exhaust gas purification catalyst 161, even but in the air of being carried, comprise unburned fuel, exhaust gas purification catalyst 161 also purifies this unburned fuel and is discharged to the outside, so do not cause deterioration of emission, the particle that can not cause air to cause is grown up and promoted deterioration.
In the process of the processing of execution in step S100～S108, S112, S116～S124 repeatedly like this, as suction press P during less than regulation negative pressure Pref, then make sure judgement, whether judge burning control (step S110) then in the fuel injection control of implementing to be known as motor 22 or IGNITION CONTROL etc. at step S108.When considering now that suction press P is less than regulation negative pressure Pref for the first time, owing to also implement the burning control of motor 22, thereby, make negative judgement at step S110, to the Engine ECU 50 indications control (step S114) that takes fire.Thus, the burning control of Engine ECU 50 beginning motors 22, but because suction press P is less than regulation negative pressure Pref, the suction air quantity that sucks in the cylinder 150 descends, so compare the impact in the time of to reduce engine start with the situation of the burning control of (promptly suction press P as yet not less than regulation negative pressure Pref time) beginning motor 22 after the rotational speed N e of motor 22 has just arrived starting speed Nstart.Then after the processing of implementation step S116～S122, judge whether perfect combustion of motor 22 at step S124.Because motor 22 just took fire to control and did not promptly still have perfect combustion this moment, thereby made negative judgement at step S124, returned step S100.Thereby, among the step S110 after step S100～S108, begin because the burning of motor 22 is controlled, so make sure judgement, the processing of implementation step S116～S124.In the processing procedure of implementation step S100～S110, step S116～S124 repeatedly like this, when motor 22 perfect combustions, then make sure judgement at step S124, finish this starting control routine.
On the other hand, consider that exhaust gas purification catalyst 161 is not in the situation of appropriate state.At this moment, make negative judgement, enter step S110 then, the processing after the implementation step S110 at step S112.That is, when exhaust gas purification catalyst 161 is not in appropriate state, does not wait until and guarantee that in suction tude 121 regulation negative pressure Pref is with regard to the control that takes fire fast.Thereby, for example under the situation of the lower low-temperature condition of the catalytic control ability that is in exhaust gas purification catalyst 161, even when in the air that is transferred, comprising unburned fuel, though exhaust gas purification catalyst 161 can not fully purify this unburned fuel and be discharged into the outside, but by the control that takes fire in advance, can shorten the air that comprises unburned fuel be discharged to car outer during promptly shorten the deterioration of emission time.And, for example exist in motor 22 stopping periods and take place from sparger 126 situation of the phenomenon of leaked fuel at leisure as the situation that comprises unburned fuel in the air.In addition, under the low situation of the temperature of the air ratio exhaust gas purification catalyst 161 in suction tude 121 or cylinder 150, make exhaust gas purification catalyst 161 further by low temperatureization by this Cryogenic air, but, can shorten the low temperature time by the control that takes fire in advance.On the other hand, for example, be exposed in the air and promote under the condition of high temperature of deterioration at exhaust gas purification catalyst 161, because by shortening the airborne time that is exposed to, so can suppress the acceleration of deterioration by the control that takes fire in advance.
Hereinafter in the torque conversion operating mode with discharge and recharge and travel under the operating mode of this burning control that is accompanied by motor 22 of operating mode when controlling, the action of being implemented with electronic control unit 70 by mixed power describes.When under the operating mode of the burning control that is accompanied by motor 22, implementing to travel control, when the automatic stop condition of the motor of regulation is set up, if exhaust gas purification catalyst 161 is under the appropriate state, then mixed power sends the instruction of the burning control of shutting engine down 22 to Engine ECU 50 with the CPU72 of electronic control unit 70, simultaneously, carry out to motor ECU40 and send that the operation of having considered motor 22 stops and the torque command Tm1 that calculating
*, Tm2
*Stop control routine.Under above-mentioned motor operating mode, implement to travel control then, or if control in the parking of the next enforcement regulation of vehicle stop state.On the other hand, even the automatic stop condition of motor of regulation is set up, and exhaust gas purification catalyst 161 does not send the instruction of the burning control of shutting engine downs 22 when not being in appropriate state to Engine ECU 50, continue the current control of travelling.This moment, so-called motor automatic stop condition was that the motor that the operational efficiency of mean engine 22 enters the inefficient scope of regulation requires power P e
*The condition of setting up when low etc.And, require torque setting to ask for according to present accelerator opening Acc and vehicle velocity V to require torque T r from Fig. 4 with figure
*, calculating requires torque T r with this
*Require power P r with the product of the rotational speed N r of gear ring axle 32a divided by the driving that the gear of reduction gear 35 obtains than Gr
*, storage battery 55 necessary the discharging and recharging that discharge and recharge require power P b
*And loss part Ploss sum, and calculate motor requirement power P e
*(Pe
*=Pr
*+ Pb
*+ Ploss).And judge in the same manner with above-mentioned steps S112 whether exhaust gas purification catalyst 161 is in appropriate state.Thereby, because when exhaust gas purification catalyst 161 is not in appropriate state, even the automatic stop condition of motor is set up, the also not burning of shutting engine down 22 control (operation that is motor 22 does not stop), thus reduced cause after pilot engine 22 o'clock exhaust gas purification catalyst 161 be not in the frequency of this situation of appropriate state.That is, can reduce the frequency that motor 22 operations are restarted.
So far known the corresponding relation of the constituting component and the constituting component of the present invention of present embodiment.The motor M G1 of present embodiment is equivalent to actuator of the present invention, and mixed power is equivalent to air quantity decision maker or suction press decision maker in the cylinder with electronic control unit 70.Mixed power is equivalent to starting controller for internal combustion engine and internal-combustion engine stop control with electronic control unit 70 and Engine ECU 20.And Cat Catalytic Converter 160 is equivalent to the exhaust gas purification catalyst, and temperature transducer 162 is equivalent to the catalyst condition checkout gear.And in the present embodiment, an example of the controlling method of automobile of the present invention has been described clearly by the action of explanation hybrid vehicle 20.
In addition, because when exhaust gas purification catalyst 161 is in inappropriate state, do not carry out stopping automatically of motor 22 operations, thereby can reduce the frequency that motor 22 operations are restarted, can reduce the starting frequency of the motor 22 that is accompanied by impact.
And in the hybrid vehicle 20 of present embodiment, owing in the way of advancing, repeatedly carry out stopping automatically and automatic restart of internal-combustion engine 22 operations repeatedly, so suppress to be known as the necessity height of deterioration of emission and these unfavorable conditions of the deterioration that promotes the exhaust gas purification catalyst, be favourable in this respect therefore.
In addition, by when exhaust gas purification catalyst 161 is in appropriate state, the control of burning after the regulation negative pressure in guaranteeing suction tude 121 can make the suction air quantity that sucks in the cylinder 150 reduce the impact in the time of can reducing starting.In addition, because when speed change lever 81 is in the P scope, 32a is locked for the gear ring axle, thereby, can not from motor M G2 output be used for the counter-force moment of torsion of negative function on gear ring axle 32a offset torque (=-Tm1
*/ ρ), so this counter-force moment of torsion directly act on the car body as impacting, and according to this hybrid vehicle 20, when engine start, when exhaust gas purification catalyst 161 is in appropriate state, even in the P scope, the impact in the time of also can reducing engine start.But when speed change lever 81 is in the P scope, when engine start, when exhaust gas purification catalyst 161 is in inappropriate state, make resulting from the impact when reducing engine start of the inappropriate state of exhaust gas purification catalyst 161 and the rejection ratio of the unfavorable condition that in dragging, produced more preferably.
Because the regulation negative pressure is set at and is equivalent to idle negative pressure, thereby when exhaust gas purification catalyst 161 was in appropriate state, not stall of motor can successfully be started.
The present invention is not limited to the foregoing description, in technical scope of the present invention, can implement the present invention under multiple mode.
For example in the starting control routine of Fig. 3 of the foregoing description, infer the suction air quantity that sucks in the cylinder 150, but the mode that the suction air quantities that suck in the cylinder 150 are inferred is not limited thereto according to suction press P.Can in cylinder, be provided for detecting the in-cylinder pressure sensor of cylinder 150 internal pressures, infer the suction air quantity by the detected inner pressure of air cylinder of this in-cylinder pressure sensor.Also the Air flow meter that 22 amount of air drawn of motor are detected can be set in suction tude 121, detect direct amount of air drawn by this Air flow meter.
And in the starting control routine of Fig. 3 of the foregoing description,, according to judging from dragging beginning elapsed time t whether suction press becomes the regulation negative pressure judge at step S108 but also can be arranged on suction tude 121 interior vacuum transducer 148 detected suction press values by utilization.
And in the starting control routine of Fig. 3 of the foregoing description, though in step S112, conclude when exhaust gas purification catalyst 161 is in appropriate state, control fast takes fire in step S110, but also can be before suction press becomes middle negative pressure than the high authorized pressure of regulation negative pressure, drag, control then takes fire.
In addition, in the above-described embodiments, when the automatic stop condition of motor is set up, when exhaust gas purification catalyst 161 is in appropriate state, the operation of motor 22 is stopped automatically.But also can reduce self-braking frequency.For example the number of times that the automatic stop condition of motor is set up is added up, and when this number of times is even number, stops automatically, when this number of times is odd number, does not stop automatically.
And in the above-described embodiments, the situation that is applied in hybrid vehicle 20 with the present invention is that example describes, but also the present invention can be applied in the vehicle that only has the idling hold function that the power of motor M G1, MG2 wherein is not sent to the structure on the vehicle drive shaft.
The present invention requires the preference of the 2005-107429 number application of Japanese patent application of application on April 4th, 2005, and all the elements of this application are all by reference in conjunction with in the present invention.
Claims (13)
1. automobile comprises:
Can drag the actuator of internal-combustion engine;
The exhaust gas purification catalyst that the exhaust of described internal-combustion engine is purified;
The catalyst condition checkout gear that the state of described exhaust gas purification catalyst is detected;
Judge whether the suction air quantity in the cylinder that sucks described internal-combustion engine is in the interior air quantity decision maker of cylinder of a small amount of scope of regulation;
Starting controller for internal combustion engine, make described internal-combustion engine when halted state is started, when the state of the described exhaust gas purification catalyst that is detected by described catalyst condition checkout gear is the regulation appropriate state, drag described internal-combustion engine by described actuator, the air quantity decision maker is judged to be after the suction air quantity that sucks in the described cylinder is in a small amount of scope of described regulation in by described cylinder, begin the burning of described internal-combustion engine, and when not being in described regulation appropriate state by the detected described exhaust gas purification catalyst of described catalyst condition checkout gear, drag described internal-combustion engine by described actuator, the air quantity decision maker is judged to be before the suction air quantity that sucks in the described cylinder is in a small amount of scope of described regulation in by described cylinder, begins the burning of described internal-combustion engine.
2. automobile as claimed in claim 1 is characterized in that: a small amount of scope of described regulation is the suction air quantity that is equivalent in the suction cylinder of described internal-combustion engine when idle.
3. automobile as claimed in claim 1 is characterized in that: comprise whether the suction press of judging described internal-combustion engine becomes the suction press decision maker of regulation negative pressure;
The air quantity decision maker is whether suction press according to described internal-combustion engine becomes the regulation negative pressure and judge whether the suction air quantity that sucks in the described cylinder is in the described suction press decision maker of a small amount of scope of described regulation in the described cylinder.
4. automobile comprises:
Can drag the actuator of internal-combustion engine;
The exhaust gas purification catalyst that the exhaust of described internal-combustion engine is purified;
The catalyst condition checkout gear that the state of described exhaust gas purification catalyst is detected;
Judge whether the suction press of described internal-combustion engine becomes the suction press decision maker of regulation negative pressure;
Starting controller for internal combustion engine, make described internal-combustion engine when halted state is started, when the state of the described exhaust gas purification catalyst that is detected by described catalyst condition checkout gear is the regulation appropriate state, drag described internal-combustion engine by described actuator, be judged to be by described suction press decision maker after described suction press becomes described regulation negative pressure, begin the burning control of described internal-combustion engine, and when not being in described regulation appropriate state by the detected described exhaust gas purification catalyst of described catalyst condition checkout gear, drag described internal-combustion engine by described actuator, being judged to be by described suction press decision maker before described suction press becomes described regulation negative pressure, begin the burning control of described internal-combustion engine.
5. as claim 3 or 4 described automobiles, it is characterized in that: described regulation negative pressure is equivalent to the suction press of described internal-combustion engine when idle.
6. as claim 3 or 4 described automobiles, it is characterized in that: described suction press decision maker judges according to the parameter relevant with the suction press of described internal-combustion engine whether the suction press of described internal-combustion engine becomes described regulation negative pressure.
7. automobile as claimed in claim 6 is characterized in that: described parameter is dragging the time of the described internal-combustion engine that undertaken by described actuator.
8. as claim 1 or 4 described automobiles, it is characterized in that: when not being in described regulation appropriate state, be meant when described exhaust gas purification catalyst is in the low-temperature condition of purifying ability deficiency.
9. as claim 1 or 4 described automobiles, it is characterized in that: when not being in described regulation appropriate state, be meant that described exhaust gas purification catalyst is in to be exposed in the air and easily during the condition of high temperature of deterioration.
10. as claim 1 or 4 described automobiles, it is characterized in that: be included in the internal-combustion engine stop control that the operation that makes described internal-combustion engine when the automatic stop condition of the internal-combustion engine of regulation is set up stops;
When the automatic starting conditions of internal-combustion engine that is made the operation of described internal-combustion engine stop the back regulation by described internal-combustion engine stop control was set up, described starting controller for internal combustion engine made described internal-combustion engine start from halted state.
11. automobile as claimed in claim 10 is characterized in that: during described internal combustion engine operation, when described exhaust gas purification catalyst was not in described regulation appropriate state, described internal-combustion engine stop control did not make the operation of described internal-combustion engine stop.
12. an automobile control method comprises the steps:
(a) detect the state of the exhaust gas purification catalyst that the exhaust to internal-combustion engine purifies;
(b) make described internal-combustion engine when halted state is started, when the state at the detected described exhaust gas purification catalyst of described step (a) is the regulation appropriate state, drag described internal-combustion engine, after suction air quantity in the cylinder that sucks described internal-combustion engine is in a small amount of scope of regulation, begin the burning control of described internal-combustion engine, when not being in described regulation appropriate state at the detected described exhaust gas purification catalyst of described step (a), drag described internal-combustion engine, before suction air quantity in sucking described cylinder becomes in a small amount of scope of described regulation, begin the burning control of described internal-combustion engine.
13. an automobile control method comprises the steps:
(a) detect the state of the exhaust gas purification catalyst that the exhaust to internal-combustion engine purifies;
(b) make described internal-combustion engine when halted state is started, when the state at the detected described exhaust gas purification catalyst of described step (a) is the regulation appropriate state, drag described internal-combustion engine, after the suction press of described internal-combustion engine becomes the regulation negative pressure, begin the burning control of described internal-combustion engine, when not being in described regulation appropriate state at the detected described exhaust gas purification catalyst of described step (a), drag described internal-combustion engine, before the suction press of described internal-combustion engine becomes described regulation negative pressure, begin the burning control of described internal-combustion engine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP107429/2005 | 2005-04-04 | ||
| JP2005107429A JP2006283722A (en) | 2005-04-04 | 2005-04-04 | Automobile and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1847643A true CN1847643A (en) | 2006-10-18 |
Family
ID=36999182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100720421A Pending CN1847643A (en) | 2005-04-04 | 2006-04-04 | Motor vehicle and control method of motor vehicle |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20060218896A1 (en) |
| JP (1) | JP2006283722A (en) |
| CN (1) | CN1847643A (en) |
| DE (1) | DE102006015331A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659257A (en) * | 2008-08-15 | 2010-03-03 | 通用汽车环球科技运作公司 | Hybrid vehicle auto start systems and methods |
| CN103124843A (en) * | 2010-09-30 | 2013-05-29 | 丰田自动车株式会社 | Vehicle controller |
| CN113530698A (en) * | 2020-04-10 | 2021-10-22 | 丰田自动车株式会社 | Engine device and hybrid vehicle provided with same |
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| US8261864B2 (en) * | 2008-06-17 | 2012-09-11 | GM Global Technology Operations LLC | Hybrid powertrain auto start control system with engine pulse cancellation |
| EP2182626B1 (en) | 2008-10-31 | 2018-11-28 | Siemens Aktiengesellschaft | Method for operating a frequency converter and frequency converter operating by the method |
| EP2182625B1 (en) | 2008-11-03 | 2014-03-19 | Siemens Aktiengesellschaft | Method for operating a frequency converter, computer program to implement such a method and data medium and computer system, especially frequency converter on which such a computer program is saved or loaded |
| DE102009008073A1 (en) | 2009-02-10 | 2010-07-15 | Siemens Aktiengesellschaft | Power converter operating method for use in three-phase network, involves combining output of one regulator with output of another regulator, where measured variables are supplied to former and latter regulators |
| DE102009054851A1 (en) * | 2009-12-17 | 2011-06-22 | Robert Bosch GmbH, 70469 | Method for starting a synchronous machine |
| JP2014184910A (en) * | 2013-03-25 | 2014-10-02 | Toyota Motor Corp | Controller for vehicle |
| JP6303774B2 (en) * | 2014-04-28 | 2018-04-04 | スズキ株式会社 | Engine start control device |
| CN204610119U (en) * | 2015-03-12 | 2015-09-02 | 浙江吉利控股集团有限公司 | For the ignition system of serial mixed power vehicle |
| CN106567766A (en) * | 2016-08-31 | 2017-04-19 | 潍柴动力股份有限公司 | Method and device for detecting in-use conformity |
| JP2020168926A (en) * | 2019-04-03 | 2020-10-15 | トヨタ自動車株式会社 | Hybrid vehicle and method of diagnosing abnormal of the same |
| JP7215404B2 (en) * | 2019-12-06 | 2023-01-31 | トヨタ自動車株式会社 | Control device for internal combustion engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2548065Y2 (en) * | 1991-09-03 | 1997-09-17 | 三菱自動車工業株式会社 | Exhaust gas purification equipment for hybrid vehicles |
| JP3000804B2 (en) * | 1992-10-21 | 2000-01-17 | 日産自動車株式会社 | Hybrid electric vehicle |
| JP3618269B2 (en) * | 1999-12-06 | 2005-02-09 | トヨタ自動車株式会社 | Control device when vehicle fuel supply is stopped |
| JP3979019B2 (en) * | 2001-03-09 | 2007-09-19 | 株式会社デンソー | Control device for internal combustion engine |
| JP4042376B2 (en) * | 2001-10-11 | 2008-02-06 | トヨタ自動車株式会社 | Catalyst deterioration detection device for internal combustion engine |
| JP2003254118A (en) * | 2002-02-28 | 2003-09-10 | Toyota Motor Corp | Operation stop control method for internal combustion engine for vehicle |
-
2005
- 2005-04-04 JP JP2005107429A patent/JP2006283722A/en active Pending
-
2006
- 2006-04-03 DE DE102006015331A patent/DE102006015331A1/en not_active Ceased
- 2006-04-03 US US11/395,281 patent/US20060218896A1/en not_active Abandoned
- 2006-04-04 CN CNA2006100720421A patent/CN1847643A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659257A (en) * | 2008-08-15 | 2010-03-03 | 通用汽车环球科技运作公司 | Hybrid vehicle auto start systems and methods |
| CN103124843A (en) * | 2010-09-30 | 2013-05-29 | 丰田自动车株式会社 | Vehicle controller |
| CN103124843B (en) * | 2010-09-30 | 2016-03-09 | 丰田自动车株式会社 | Vehicle control device |
| CN113530698A (en) * | 2020-04-10 | 2021-10-22 | 丰田自动车株式会社 | Engine device and hybrid vehicle provided with same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006283722A (en) | 2006-10-19 |
| US20060218896A1 (en) | 2006-10-05 |
| DE102006015331A1 (en) | 2006-10-05 |
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