WO2008120527A1 - ハイブリッド車両の触媒昇温装置 - Google Patents
ハイブリッド車両の触媒昇温装置 Download PDFInfo
- Publication number
- WO2008120527A1 WO2008120527A1 PCT/JP2008/053901 JP2008053901W WO2008120527A1 WO 2008120527 A1 WO2008120527 A1 WO 2008120527A1 JP 2008053901 W JP2008053901 W JP 2008053901W WO 2008120527 A1 WO2008120527 A1 WO 2008120527A1
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- WIPO (PCT)
- Prior art keywords
- catalyst
- hybrid vehicle
- power module
- cooling water
- engine
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—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 transmission gearings
- B60K6/365—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 transmission gearings with the gears having orbital motion
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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
- B60W20/15—Control strategies specially adapted for achieving a particular effect
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
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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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
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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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
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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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
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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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
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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
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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
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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
- 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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- 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
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/12—Catalyst or filter state
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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
- Y02T10/12—Improving ICE efficiencies
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the present invention relates to a catalyst for an engine mounted on a hybrid vehicle, and more particularly to a technology for effectively using heat of a power module mounted on a hybrid vehicle in order to avoid deteriorating exhaust gas emission.
- an exhaust gas system of an engine is provided with a catalytic converter for purifying specific components in the exhaust gas.
- a catalytic converter for purifying specific components in the exhaust gas.
- a three-way catalytic converter is widely used, which oxidizes carbon monoxide (CO) and unburned hydrocarbon (HC), which are specific three components in the exhaust gas, as well as oxidation.
- Nitrogen (NO x) is reduced and converted to carbon dioxide (C 0 2 ), water vapor (H 2 0), and nitrogen (N 2 ).
- the catalyst contained in this three-way catalytic converter is degraded at low temperatures, and during cold start, if the temperature of the catalyst is not raised early, combustion is unstable and many of the specific three components mentioned above There is a problem that the exhaust gas contained cannot be purified.
- an engine travel mode that travels using only the engine as a power source
- a motor travel mode that travels using only the motor as a power source (with the engine stopped)
- the power is automatically switched according to predetermined mode switching conditions such as a power source map that uses operating conditions such as the number of rotations and the amount of accelerator operation as parameters.
- the engine is intermittently operated even when the vehicle is running.
- a series (series) type where the drive wheel is rotated only by the motor and the engine operates as a power supply source to the motor via a generator.
- hybrid vehicles There are hybrid vehicles.
- a hybrid vehicle which is called a parallel type, which directly drives the wheels with both the engine and the motor, and the motor assists the engine power and can run while charging the battery as a generator. .
- Japanese Laid-Open Patent Publication No. 20 0 6-1 3 2 3 9 4 discloses an exhaust gas purification device for a series type hybrid vehicle that can efficiently and reliably purify exhaust gas while suppressing an increase in cost.
- This series hybrid vehicle exhaust gas purification device includes a generator driven by an internal combustion engine, a traveling battery charged via an inverter by the output of the generator, and electric power from the battery via the inverter.
- electric power is supplied via an exhaust gas purifying means provided in an exhaust gas path of the internal combustion engine and an inverter when the internal combustion engine is stopped.
- a temperature raising means for raising the temperature of the exhaust gas purification means.
- the exhaust gas purifying means is characterized in that an oxidation catalyst is disposed at the front stage and a filter for collecting particulate matter in the exhaust gas is disposed at the rear stage. Further, the filter is a coordinated filter, and the temperature raising means is a heater provided around the filter and generating heat when electric power is supplied.
- the exhaust gas purification device of this series type hybrid vehicle According to the exhaust gas purification device of this series type hybrid vehicle, the exhaust gas purification device provided in the exhaust gas path of the internal combustion engine of the series type hybrid vehicle is replaced with a battery cover converter for traveling while the internal combustion engine is stopped. The temperature is raised by supplying electric power to the heating means. Furthermore, the exhaust gas purifying device in a so-called continuous regeneration type filter and child, hydrocarbons in the exhaust gas by the upstream side oxidation catalyst (HC) and carbon monoxide (CO) and carbon dioxide (C_ ⁇ 2) and water (H 2 0) and nitrogen monoxide in NOX Efficiently change element (NO) to nitrogen dioxide (NO 2 ), temporarily increase the N 0 2 concentration, collect PM with the latter filter, and collect the collected PM 2 Burn with.
- HC upstream side oxidation catalyst
- CO carbon monoxide
- CO carbon dioxide
- C_ ⁇ 2 water
- NO 2 nitrogen dioxide
- the filter is a non-conductive coordinated filter
- a heater is provided around the coordinated filter, and power is supplied to the heater to generate heat, thereby raising the temperature of the coordinated filter.
- the performance of electronic components such as thyristors and power transistors mounted on hybrid vehicles is remarkably improved, and the amount of heat generated from the electronic components (heat-generating elements) is correspondingly increased.
- hybrid vehicles including electric vehicles and fuel cell vehicles
- power is converted by an inverter to supply power from the DC battery to the induction motor.
- the amount of heat generated by electronic components such as inverters increases, and sufficient cooling measures are required.
- IPM Intelligent Power Module
- IGBT Insulated Gate Bipolar
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a catalyst temperature raising apparatus for a hybrid vehicle that can effectively use heat generated by a power module for catalyst warm-up. Is Rukoto.
- a catalyst temperature increasing device for a hybrid vehicle is provided with a catalyst purification mechanism for purifying exhaust gas of an internal combustion engine and an outer surface of the catalyst purification mechanism, and has a heat resistance equal to or higher than the catalyst activation temperature. And an electrical device that generates heat when energized.
- the catalyst purification mechanism that purifies the exhaust gas of the internal combustion engine cannot sufficiently purify the exhaust gas below the catalyst activation temperature. Normally, the exhaust gas temperature is raised by ignition delay, fuel injection amount increase, etc. to raise the temperature of the catalyst purification mechanism.
- the internal combustion engine may be started while running with only the motor.
- this electrical device has a heat resistance higher than the catalyst activation temperature, even after the catalyst is activated (for example, at a high temperature of about 600 ° C.), its function deteriorates or is damaged by heat. Don't do it. As a result, it is possible to provide a catalyst temperature raising device for a hybrid vehicle that can effectively use the heat of the power module that generates heat to warm up the catalyst.
- the electrical device is a device for controlling power supply to the motor generator.
- the inverter device, the converter device, etc. which are mounted on the hybrid vehicle as electrical equipment and control the power supply to the motor generator, It has heat resistance higher than the activation temperature.
- This electrical device is provided in contact with the outer surface of the catalyst purification mechanism. For this reason, the heat of the device that controls the supply of electric power to the motor generator, which generates heat when energized, raises the temperature of the catalyst through the outer surface of the catalyst purification mechanism. Since this electric device has heat resistance equal to or higher than the catalyst activation temperature, even after the catalyst is activated (for example, a high temperature of about 60 ° C.), its function is reduced, or heat is applied. It will not be damaged.
- the electrical device is an inverter device, and the inverter device has a heat resistance higher than the catalyst activation temperature.
- Power module that generates heat and generates heat, and an electrical component that is inferior in heat resistance to the power module.
- a power module is provided so as to be in contact with the outer surface of the catalyst purification mechanism. Parts are provided.
- the catalyst temperature increasing device for a hybrid vehicle further includes a heat insulating member provided between the power module and the electric component in addition to the configuration of the third aspect of the invention.
- a heat insulating material glass wool or the like that insulates inactively, a cooling water passage or cooling air passage that actively insulates between a power module and an electrical component that is inferior in heat resistance to the power module
- Etc. a heat insulating material
- the cooling water pipe is provided between the power module and the electrical component that is inferior in heat resistance to the power module. Cooling water cooled (radiated) by the radiator is circulated through this cooling water pipe. For this reason, even if the power module is provided in contact with the outer surface of the catalyst purification mechanism, the heat of the catalyst purification device is transferred from the catalyst purification mechanism to the electric component with low heat resistance through the power module by the heat insulating material. Can be avoided more reliably.
- the catalyst temperature increasing device for a hybrid vehicle further includes a control device in addition to the configuration of any one of the first to third aspects of the invention.
- the control device determines whether or not the catalyst purification mechanism needs to be warmed up after the internal combustion engine is started, and if it is determined that warming up is necessary, the control device operates the electric equipment with low efficiency. Control electrical equipment.
- the electric device is operated at a low efficiency. For this reason, the amount of heat generated from electrical equipment increases. As a result, the amount of heat generated from the power module is increased, so that the temperature of the catalyst purification mechanism can be raised more quickly by the heat generated by the power module.
- FIG. 1 is a control block diagram of the entire hybrid vehicle including the catalyst temperature raising apparatus according to the embodiment of the present invention.
- FIG. 2 is a diagram showing a power split mechanism.
- FIG. 4 is a flowchart showing a control structure of a program executed by the engine ECU which controls the catalyst temperature raising apparatus according to the embodiment of the present invention.
- the present invention is not limited to the hybrid vehicle shown in FIG.
- the present invention may be an internal combustion engine such as a gasoline engine (hereinafter referred to as the engine) as a power source, a drive source for driving the vehicle, and a generator drive source.
- the drive source is an engine and a motor generator
- the vehicle is a vehicle that can be driven by the power of the motor generator, and the engine may be stopped while the vehicle is running. It may be a vehicle.
- the battery is a nickel metal hydride battery or a lithium ion battery, and the type thereof is not particularly limited. A capacitor may be used instead of the battery.
- the hybrid vehicle includes an engine 1 2 0 and a motor generator (MG) 1 4 0.
- the motor generator 1 4 0 is replaced with the motor generator 1 4 OA (or MG (2) 1 4 OA) and the motor generator.
- the motor generator 14 OA functions as a generator, or the motor generator 140 B functions as a motor, depending on the traveling state of the hybrid vehicle. Regenerative braking is performed when this motor generator functions as a generator.
- the motor generator functions as a generator, the kinetic energy of the vehicle is converted into electric energy, and the vehicle is decelerated.
- the hybrid vehicle transmits the power generated by the engine 120 and the motor generator 140 to the drive wheels 160, and the reduction gear 180 that transmits the drive of the drive wheels 160 to the engine 120 and the motor generator 140.
- a power split mechanism (for example, a planetary gear mechanism to be described later) 200 that distributes the power generated by the engine 120 to two paths of the drive wheel 160 and the motor generator 140 B (MG (1) 140 B), and a motor generator Travel battery 220 that charges the power to drive 140, DC of travel battery 220 and motor generator 140 A (MG (2) 14 A) and motor generator 140 B (MG (1) 14 OB)
- a battery control unit (hereinafter referred to as a battery control unit) that manages and controls the inverter 240 that performs current control while converting alternating current and the charge / discharge state (eg, SOC (State Of Charge)) of the battery 220 for traveling.
- ECU Electronic Control Unit
- engine ECU 280 for controlling the operating state of engine 120, motor generator 140, battery ECU 260, inverter 240, etc. according to the state of the hybrid vehicle MG— ECU300 And a battery ECU 260, an engine ECU 280, and an MG—ECU 300, etc., which mutually manage and control the hybrid system so that the hybrid vehicle can operate most efficiently.
- each ECU is configured separately, but may be configured as an ECU in which two or more ECUs are integrated (for example, MG_ECU 300 and HV-ECU320 as shown by the dotted line in FIG. 1).
- An example of this is an ECU that integrates .
- the power split mechanism 200 uses a planetary gear mechanism (a planetary gear) to distribute the power of the engine 120 to both the drive wheel 160 and the motor generator 14 OB (MG (1) 140B).
- a planetary gear mechanism a planetary gear
- power split device 200 By controlling the rotation speed of motor generator 140B (MG (1) 140B), power split device 200 also functions as a continuously variable transmission.
- the rotational force of the engine 120 is input to the carrier (C), which is input to the motor generator 140 B (MG (1) 140 B) by the sun gear (S), and the motor generator 14 OA (MG (2) 1 by the ring gear (R). 4 OA) and output shaft (drive wheel 160 side).
- the motor energy generated by the motor generator 140 B (MG (1) 140 B) is used to convert this rotational motion energy into the engine 120. Reduce the number of revolutions.
- the target SOC of the traveling battery 220 is normally set to about 60% so that energy can be recovered whenever regeneration is performed.
- the upper limit and lower limit values of SOC are set, for example, with the upper limit value set to 80% and the lower limit value set to 30% in order to suppress deterioration of the battery of the running battery 220.
- MG Controls power generation, regeneration, and motor output by the motor generator 140 so that the SOC does not exceed the upper and lower limits via the ECU 300.
- the values listed here are only examples and are not particularly limited values.
- Pinion gear 204 engages with sun gear 202 and ring gear 208.
- the carrier 206 supports the pinion gear 204 so that it can rotate.
- Sun gear 202 is connected to the rotating shaft of MG (1) 140 B.
- Carrier 206 is coupled to the engine 120 crankshaft.
- Ring gear 208 is MG (2) 1 4 Linked to OA rotating shaft and reducer 180.
- Engine 1 20, MG (1) 1408 ⁇ 1 ⁇ 0 (2) 14 OA is connected via power split mechanism 200 consisting of planetary gears, so engine 120, MG (1) 140B and MG ( 2) The rotation speed of 14 OA is related by a straight line in the nomograph.
- Air drawn from the air cleaner 1 1 18 passes through the intake passage 1 1 10 and flows to the engine 120.
- a throttle valve 1 1 1 1 2 is provided in the middle of the intake passage 1 1 10.
- the throttle valve 1 1 1 2 is opened and closed by a throttle motor 1 1 14 A that operates based on a control signal from the engine ECU 280 so that a desired amount of air is supplied to the engine 120.
- the opening of the throttle valve 1 1 12 can be detected by the throttle position sensor 1 1 14 B.
- An air flow meter 1104 is provided in the intake passage between the air cleaner 1 1 18 and the throttle valve 1 1 12 to detect the amount of air taken.
- the air flow meter 1 104 transmits the intake air intake amount signal to the engine ECU 280.
- the engine 120 includes a cooling water passage 1 122, a cylinder block 1124, an injector 1 126, a piston 1 1 28, a crankshaft 1 130, a water temperature sensor 1 106, and a crank position sensor 1 132 including.
- Piston 1 1 28 is provided in each cylinder corresponding to the number of cylinders in cylinder block 1 124. Piston 1 128
- the combustion chamber above the 128 passes through the intake passage 1 1 10 and the fuel injected from the injector 1 126 and the intake air
- the air-fuel mixture is introduced and burned by ignition of a spark plug whose ignition timing is controlled.
- piston 1 1 2 8 is pushed down. At this time, the vertical movement of the piston 1 1 2 8 is converted into the rotational movement of the crankshaft 1 1 3 0 via the crank mechanism.
- the engine speed 1 NE of the engine 1 2 0 is detected by the engine ECU 2 80 based on the signal detected by the crank position sensor 1 1 3 2.
- a cooling water passage 1 1 2 2 is provided in the cylinder block 1 1 2 4, and the cooling water is circulated by the operation of a water pump (not shown).
- the cooling water in the cooling water passage 1 1 2 2 flows to a radiator (not shown) connected to the cooling water passage 1 1 2 2 and is radiated by a cooling fan (not shown).
- a water temperature sensor 1 1 0 6 is provided on the cooling water passage 1 1 2 2 and detects the temperature of the cooling water in the cooling water passage 1 1 2 2.
- the water temperature sensor 1 1 0 6 transmits the detected water temperature to the engine ECU 2 80 as an engine cooling water temperature detection signal.
- the exhaust gas system 1 1 5 4 is configured integrally with the exhaust gas passage 1 1 0 8 and the exhaust hold of the engine 1 2 0, for example, in order to increase the temperature by the heat of the engine 1 2 0
- a first three-way catalytic converter 1 2 200 and a second three-way catalytic converter 1 300 provided on the under floor, for example.
- the upstream side of the first three-way catalytic converter 1 2 0 0 and the upstream side of the second three-way catalytic converter 1 3 0 0 (the downstream side of the first three-way catalytic converter 1 2 0 0) Each is provided with an air-fuel ratio sensor. Further, a temperature sensor (not shown) for detecting the temperatures of the first three-way catalytic converter 1220 and the second three-way catalytic converter 13 300 is provided.
- the exhaust gas passage 1 1 0 8 connected to the exhaust gas side of the engine 1 2 0 is connected to the first three-way catalytic converter 1 2 0 0 and the second three-way catalytic converter 1 3 0 0 Has been.
- the exhaust gas generated by the combustion of the air-fuel mixture in the combustion chamber in the engine 120 first flows into the first three-way catalytic converter 1220.
- HC and CO contained in the exhaust gas flowing into the first three-way catalytic converter 1 2 0 0 are oxidized in the first three-way catalytic converter 1 2 0 0.
- NOX contained in the exhaust gas flowing into the first three-way catalytic converter 1 2 0 0 is reduced in the first 3 way catalytic converter 1 2 0 0.
- This first three-way catalyst component -The 1 2 0 0 is installed near the engine 1 2 ⁇ (as mentioned above, it may be integrated with the exhaust stoma hold) and when the engine 1 2 0 is cold started Also, the temperature is rapidly raised and the catalytic function is exhibited.
- the exhaust gas is sent from the first three-way catalytic converter 1220 to the second three-way catalytic converter 1300 for the purpose of purification.
- the first three-way catalytic converter 12 00 and the second three-way catalytic converter 13 30 have basically the same structure and function.
- the first air-fuel ratio sensor 1 2 10 and the second air-fuel ratio sensor 1 3 1 0 generate a current corresponding to the oxygen concentration in the exhaust gas. This current is converted into voltage, for example, and input to the engine E C U 2 80. Therefore, the air-fuel ratio of the exhaust gas upstream of the first three-way catalytic converter 1 2 0 0 can be detected from the output signal of the first air-fuel ratio sensor 1 2 1 0, and the second air-fuel ratio sensor 1 3
- the air-fuel ratio of the exhaust gas upstream of the second three-way catalytic converter 13 300 can be detected from the 10 output signal.
- the first three-way catalytic converter 1 2 0 0 and the second three-way catalytic converter 1 3 0 0 function to reduce NOX while oxidizing HC and CO when the air-fuel ratio is almost the stoichiometric air-fuel ratio, that is, HC
- the catalyst temperature raising apparatus according to the present embodiment is a component part of an inverter 2 40, It has a configuration in which the power module 2400A is provided so as to be in contact with the outer surface of the first three-way catalytic converter 12200, which generates heat and has excellent heat resistance (for example, 600 ° C).
- the power module 2 4 OA with high heat loss and high density heat loss (for example, 1 kWZ cm 2 ) using 4 H—SiC and 6 H—SiC as the device material is
- the first three-way catalytic converter 1 2 is placed in contact with the outer surface of the first catalytic converter 1 2 0 0 and the heat transfer from the power module 2 4 OA to the first three-way catalytic converter 1 2 0 0 0 Raise the temperature.
- the catalyst temperature raising apparatus according to the present embodiment is arranged only in the first three-way catalytic converter 1 2 0 0, but the second three-way catalytic converter 1 3 0 0 is also provided. Alternatively, it is possible to arrange the catalyst temperature raising apparatus according to the present embodiment only in the second three-way catalyst converter 1300.
- the heat insulating part may be a glass wool that is a heat insulating material, a cooling air passage, or the like, instead of the cooling water passage.
- Inverter 2 4 0 (power module 2 4 0 A, The cooling water pipe 2 40 C, the radiator 2 40 F, which is a radiator, the cooling water pipe 24 0 C, and the radiator 2 40 0 One-way piping 2 4 0 E, radiator 2 4 0 F and cooling water piping 2 4 0 C Connecting radiator return piping 2 4 OG, Rajita one-way piping 2 4 0 Switching valve provided on E 2 4 There is 0 D.
- the switching valve 2 4 0 D is connected to the cooling water pipe 2 4 0 C and the radiator-bound pipe 2 4 0 E by the engine ECU 2 80 which controls the catalyst temperature raising device. Switch to either state.
- engine ECU 280 determines whether or not it is necessary to raise the temperature of first three-way catalytic converter 1200. For example, engine ECU 280 determines that temperature increase of first three-way catalytic converter 1200 is necessary when temperature T of first three-way catalytic converter 1 200 is equal to or lower than a low temperature threshold value. When it is determined that the temperature of first three-way catalytic converter 1 200 needs to be increased (31 200, S), the process proceeds to S 1 300. If not (NO at S1200), the process proceeds to S1500.
- engine ECU 280 outputs a command signal so that power module 24 OA of inverter 240 is driven with low efficiency.
- the barta 240 is not directly controlled by the engine ECU 280 but by the MG—ECU 300.
- the engine ECU 280 outputs a command signal to the MG ECU 300 via the HV ECU 320 so that the power module 24 OA is driven with low efficiency.
- engine ECU 280 outputs a valve closing command signal to switching valve 240D of the cooling system. The operation of the water pump will be stopped. Thereafter, this process ends.
- engine ECU 280 outputs a valve opening command signal to switching valve 240D of the cooling system.
- the water pump is started. Thereafter, this process ends.
- the power module 24 OA installed in close contact with the outer surface of the first three-way catalytic converter 1 200 is driven with normal efficiency (S 1500). As a result, the power module 24 OA only generates heat during normal use.
- the cooling water circulated between the cooling water pipe 2 4 OC and the radiator 2 40 0 F cools the power module 2 4 OA itself, as well as the inverter component 2 4 OB and the power module 2 4 It functions as a heat insulating material between the OA and the first three-way catalytic converter 1 2 0 0 and the inverter part 2 4 0 0 B itself.
- the power module When the temperature of the catalyst is not actively increased (when the catalyst is sufficiently hot), the power module is operated at normal efficiency, and in addition to this, Z is used instead of cooling water and the radiator.
- the power module and inverter parts can be actively cooled so that the temperature of these power modules and inverter parts does not exceed their respective heat resistance temperatures.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Transportation (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Automation & Control Theory (AREA)
- Exhaust Gas After Treatment (AREA)
- Hybrid Electric Vehicles (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112008000755.1T DE112008000755B4 (de) | 2007-03-29 | 2008-02-27 | Katalysatortemperatur-Erhöhungseinrichtung für ein Hybridfahrzeug |
CN2008800042702A CN101605683B (zh) | 2007-03-29 | 2008-02-27 | 混合动力车辆的催化剂升温装置 |
US12/519,481 US8333066B2 (en) | 2007-03-29 | 2008-02-27 | Catalyst temperature increasing apparatus for hybrid vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007088234A JP4240130B2 (ja) | 2007-03-29 | 2007-03-29 | ハイブリッド車両の触媒昇温装置 |
JP2007-088234 | 2007-03-29 |
Publications (1)
Publication Number | Publication Date |
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WO2008120527A1 true WO2008120527A1 (ja) | 2008-10-09 |
Family
ID=39808111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/053901 WO2008120527A1 (ja) | 2007-03-29 | 2008-02-27 | ハイブリッド車両の触媒昇温装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8333066B2 (ja) |
JP (1) | JP4240130B2 (ja) |
CN (1) | CN101605683B (ja) |
DE (1) | DE112008000755B4 (ja) |
WO (1) | WO2008120527A1 (ja) |
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CN101994555A (zh) * | 2009-08-07 | 2011-03-30 | 通用汽车环球科技运作公司 | 排气处理系统的催化剂的辐射加热系统和方法 |
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JP5353729B2 (ja) * | 2010-01-25 | 2013-11-27 | 三菱自動車工業株式会社 | エンジンの制御装置 |
US8661799B2 (en) * | 2010-10-13 | 2014-03-04 | Ford Global Technologies, Llc | Exhaust system for an internal combustion engine |
US8549838B2 (en) * | 2010-10-19 | 2013-10-08 | Cummins Inc. | System, method, and apparatus for enhancing aftertreatment regeneration in a hybrid power system |
US8742701B2 (en) | 2010-12-20 | 2014-06-03 | Cummins Inc. | System, method, and apparatus for integrated hybrid power system thermal management |
DE102011050980B4 (de) * | 2011-06-09 | 2023-10-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zum Betreiben eines Hybridfahrzeugs |
JP5834825B2 (ja) * | 2011-11-25 | 2015-12-24 | トヨタ自動車株式会社 | 車両 |
US9222387B2 (en) * | 2012-01-18 | 2015-12-29 | Toyota Jidosha Kabushiki Kaisha | Control apparatus for an internal combustion engine |
JP2013163484A (ja) * | 2012-02-13 | 2013-08-22 | Toyota Motor Corp | ハイブリッド車両に搭載された内燃機関の空燃比制御装置 |
US8720185B2 (en) * | 2012-02-28 | 2014-05-13 | Southwest Research Institute | Use of Braking energy to augment exhaust heat for improved operation of exhaust aftertreatment devices |
US9802601B2 (en) * | 2012-07-03 | 2017-10-31 | Ford Global Technologies, Llc | Vehicle and method for improving performance at low battery limits |
WO2015141499A1 (ja) | 2014-03-20 | 2015-09-24 | ヤンマー株式会社 | エンジン装置及びこれを搭載した定置型作業機 |
JP6243765B2 (ja) * | 2014-03-20 | 2017-12-06 | ヤンマー株式会社 | エンジン装置 |
US9403528B2 (en) * | 2014-07-18 | 2016-08-02 | Ford Global Technologies, Llc | Method and assembly for directing power within an electrified vehicle |
CN106762040A (zh) * | 2017-01-03 | 2017-05-31 | 宁波吉利罗佑发动机零部件有限公司 | 一种应用于汽油发动机的排放后处理系统及处理方法 |
JP6744853B2 (ja) * | 2017-12-20 | 2020-08-19 | 株式会社Subaru | 外部ヒータ稼働判定システム及び車両用制御システム |
US11560136B2 (en) | 2018-03-02 | 2023-01-24 | Toyota Jidosha Kabushiki Kaisha | Control device |
CN108590818A (zh) * | 2018-04-18 | 2018-09-28 | 成都雅骏新能源汽车科技股份有限公司 | 一种基于混合动力汽车降低冷启动排放的控制方法 |
DE102018214756A1 (de) * | 2018-08-30 | 2020-03-05 | Hyundai Motor Company | System und Verfahren zur Wärmezufuhr zu einem Abgasnachbehandlungssystem eines Plug-in-Hybrid- Elektrofahrzeugs |
JP7067387B2 (ja) * | 2018-09-21 | 2022-05-16 | トヨタ自動車株式会社 | ハイブリッド車両の制御装置 |
JP7308279B2 (ja) * | 2019-10-07 | 2023-07-13 | 日立Astemo株式会社 | 駆動システム |
US11643066B2 (en) * | 2020-07-01 | 2023-05-09 | United States Department Of Energy | Systems and methods for power management using adaptive power split ratio |
JP7452343B2 (ja) | 2020-09-15 | 2024-03-19 | 日産自動車株式会社 | ハイブリッド車両制御方法及びハイブリッド車両制御装置 |
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- 2008-02-27 US US12/519,481 patent/US8333066B2/en active Active
- 2008-02-27 WO PCT/JP2008/053901 patent/WO2008120527A1/ja active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
CN101605683A (zh) | 2009-12-16 |
JP4240130B2 (ja) | 2009-03-18 |
US20100043414A1 (en) | 2010-02-25 |
JP2008247084A (ja) | 2008-10-16 |
US8333066B2 (en) | 2012-12-18 |
DE112008000755B4 (de) | 2014-09-11 |
CN101605683B (zh) | 2013-02-27 |
DE112008000755T5 (de) | 2010-01-14 |
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