WO2010106613A1 - 排気浄化システム - Google Patents
排気浄化システム Download PDFInfo
- Publication number
- WO2010106613A1 WO2010106613A1 PCT/JP2009/055006 JP2009055006W WO2010106613A1 WO 2010106613 A1 WO2010106613 A1 WO 2010106613A1 JP 2009055006 W JP2009055006 W JP 2009055006W WO 2010106613 A1 WO2010106613 A1 WO 2010106613A1
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- WIPO (PCT)
- Prior art keywords
- exhaust gas
- exhaust
- internal combustion
- combustion engine
- purification device
- Prior art date
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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
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
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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
- F01N13/0097—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 the purifying devices are arranged in a single housing
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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
- F02D41/027—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus
- F02D41/029—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus to purge or regenerate the exhaust gas treating apparatus the exhaust gas treating apparatus being a particulate filter
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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
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
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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
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
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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
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
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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
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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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
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0802—Temperature of the exhaust gas treatment 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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0812—Particle filter loading
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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
Definitions
- the present invention relates to an exhaust gas purification system that purifies exhaust gas of an internal combustion engine by removing PM.
- exhaust purification devices for collecting PM (Paticulate Matter: particulate matter) in the exhaust gas of an internal combustion engine, one that is regenerated by a regeneration control process in which fuel is added to the exhaust (a catalyst is supported)
- Exhaust gas purifiers comprising filters, exhaust gas purifiers provided with an oxidation catalyst before the filter, etc.).
- the present invention has been made in view of the above-described present situation, and an object of the present invention is an exhaust purification system including an exhaust purification device for collecting PM, in a form that consumes less fuel.
- An object of the present invention is to provide an exhaust purification system capable of regenerating the exhaust purification device.
- an exhaust purification system includes an exhaust purification device for collecting PM in exhaust gas of an internal combustion engine, a temperature of the exhaust purification device, and the exhaust purification device. Based on the situation information including the amount of PM remaining in the exhaust, the state of the exhaust purification device increases the temperature of the exhaust purification device by adding fuel into the exhaust and regenerates the exhaust purification device A determination means for determining whether or not the regeneration operation is in an inappropriate state in which the control process cannot be efficiently performed; and when a predetermined condition is satisfied, the temperature of the exhaust purification device is increased by adding fuel into the exhaust gas.
- Control means for starting a regeneration control process for regenerating the exhaust gas purification device and interrupting the regeneration control process when the internal combustion engine is stopped during the regeneration control process. Interrupt
- the control device includes a control unit that starts the regeneration control process when the predetermined condition is satisfied.
- the exhaust purification system when the exhaust purification system is configured to restart the regeneration control process when the catalyst temperature exceeds the activation temperature, the catalyst temperature ( ⁇ the exhaust purification device temperature) is considerably low, or the PM
- the regeneration control process may be resumed in a state where the accumulation amount (PM amount in the exhaust purification device) is relatively small.
- the regeneration control process is resumed with the catalyst temperature being considerably low, a relatively large amount of fuel is required to raise the temperature of the exhaust purification device to the temperature at which PM is oxidized. It will be.
- the amount of accumulated PM is small, the oxidation efficiency of PM is deteriorated (the oxidation rate of PM is slow). Therefore, when the regeneration control process is restarted with a relatively small amount of PM, a relatively large amount of fuel is required because the PM oxidation efficiency is poor.
- the state of the exhaust purification device is a state in which a larger amount of fuel than usual is required for oxidation removal of PM.
- the state of the exhaust purification device is in such a state (“appropriate regeneration implementation”.
- the regeneration control process should be resumed based on status information that can determine whether or not it is in the “status”) (“status information including the temperature of the exhaust purification device and the amount of PM remaining in the exhaust purification device”) If it is determined whether or not the regeneration control process should not be resumed, the regeneration control process is not resumed (therefore, the regeneration control process is started when a predetermined condition is satisfied). is doing.
- the exhaust purification system of this first aspect is a system that can regenerate the exhaust purification device with less fuel consumption than a system that restarts the regeneration control process when the temperature of the catalyst exceeds the activation temperature. It can be said that
- the exhaust purification system of the second aspect of the present invention includes an exhaust purification device for collecting PM in the exhaust gas of the internal combustion engine, a stop time of the internal combustion engine, and a PM remaining in the exhaust purification device. Based on the situation information including the amount, the state of the exhaust gas purification device efficiently increases the temperature of the exhaust gas purification device by adding fuel into the exhaust gas and regenerates the exhaust gas purification device. Determining means for determining whether or not regeneration is inappropriate, and when a predetermined condition is satisfied, by adding fuel to the exhaust gas, the temperature of the exhaust gas purification device is raised to increase the temperature of the exhaust gas purification device.
- the regeneration control process is restarted, and the state of the exhaust gas purification device is determined by the determination means. If it is determined that the state is inappropriate for reproduction, a control unit is provided for starting a reproduction control process when the predetermined condition is satisfied.
- the exhaust purification system of the second aspect of the present invention is also a system that restarts the regeneration control process when the temperature of the catalyst exceeds the activation temperature, as in the exhaust purification system of the first aspect of the present invention described above.
- the exhaust purification device can be regenerated with less fuel consumption.
- the exhaust purification system of the present invention is for an internal combustion engine that is frequently stopped and started, that is, an internal combustion engine that is automatically stopped mounted on an idle stop vehicle, a hybrid vehicle, or the like. It is particularly preferable to realize it as a device.
- the exhaust purification system of the present invention can also be realized for an internal combustion engine that is not automatically stopped (an internal combustion engine in which a driver performs an idle stop by operating an ignition key).
- a means that functions only when the internal combustion engine is started can be employed as a determination means, or a means that repeatedly functions while the internal combustion engine is stopped can be employed.
- means for actually measuring the temperature of the exhaust purification apparatus may be adopted, or means for not actually measuring the temperature of the exhaust purification apparatus (means for estimating the temperature of the exhaust purification apparatus from other information) Can also be adopted.
- the control means is “a means for managing the number of times that the reproduction control process should not be resumed continuously as the number of cancellations, In the determination based on the situation information, even if it is determined that the regeneration control process should not be resumed, if the number of cancellations is equal to or greater than a predetermined number, means for resuming the regeneration control process ” It is desirable to adopt it.
- an exhaust purification system that includes an exhaust purification device for collecting PM, and that can regenerate the exhaust purification device in a form that consumes less fuel. I can do it.
- 1 is a configuration diagram of an internal combustion engine system to which an exhaust gas purification system according to a first embodiment of the present invention is applied. It is a flowchart of the 1st condition monitoring process which ECU of the exhaust gas purification system which concerns on 1st Embodiment performs. It is a figure for demonstrating the reproduction
- FIG. 1 shows a configuration of a vehicle internal combustion engine system to which an exhaust purification system according to a first embodiment of the present invention is applied.
- a portion including the exhaust purification device 19, the temperature sensor 26, and the ECU 30 corresponds to the exhaust purification system according to the first embodiment. To do.
- the internal combustion engine (internal combustion engine body) 10 provided in the vehicle internal combustion engine system is a diesel engine having four cylinders 11.
- the internal combustion engine 10 is provided with a fuel injection valve 12 for injecting fuel into the cylinder 11 and intake and exhaust valves (not shown).
- the internal combustion engine 10 is also provided with a crank position sensor 24 for detecting the engine speed and a water temperature sensor 25 for detecting the temperature of the cooling water.
- an intake manifold 13 that communicates with the combustion chamber of each cylinder 11 via an intake port (not shown), and an exhaust manifold 17 that communicates with the combustion chamber of each cylinder 11 via an exhaust port. Has been.
- the intake manifold 13 is connected to an intake passage 14 for introducing air into the intake manifold 13.
- An air cleaner 15 for removing dust and dirt from the air (intake air) is provided on the upstream side of the intake passage 14.
- a compressor housing 20a of the turbocharger 20 and an intercooler 16 for cooling the air after passing through the compressor housing 20a are provided in a portion of the intake passage 14 on the downstream side of the air cleaner 15.
- An air flow meter 21 for measuring the flow rate of intake air is provided in a portion of the intake passage 14 between the air cleaner 15 and the compressor housing 20a. Further, in the portion of the intake passage 14 downstream of the intercooler 16, a temperature sensor 22 for measuring the temperature of the intake air flowing through the intake passage 14, and the flow rate of the intake air flowing through the intake passage 14 are shown. An adjustable intake throttle valve 23 is provided.
- An exhaust passage 18 is connected to the exhaust manifold 17 via a turbine housing 20b of the turbocharger 20.
- a filter 19 b (in this embodiment, carrying a NOx storage reduction catalyst) for collecting PM is provided downstream of the catalyst 19 a (in this embodiment, NOx storage reduction catalyst).
- the provided exhaust purification device 19 is arranged.
- the exhaust gas purification device 19 is provided with a temperature sensor 26 for actually measuring the temperature of the catalyst 19a (hereinafter referred to as the bed temperature).
- the internal combustion engine system for a vehicle is an ECU (electronic unit) that integrally controls each part of the system (fuel injection valve 12, intake valve, exhaust valve, etc.) based on the various sensors described above and the output of the accelerator position sensor 29. control unit 30).
- ECU electronic unit
- the ECU 30 has a function of stopping the operation of the internal combustion engine 10 when the host vehicle is stopped.
- the ECU 30 also has a function of calculating (estimating) and managing the amount of PM accumulated in the filter 19b (hereinafter referred to as PM accumulation amount) from the operating state of the internal combustion engine 10. Further, the ECU 30 monitors whether the PM accumulation amount exceeds the specified amount ⁇ , and when the PM accumulation amount exceeds the specified amount ⁇ , the value of the PM regeneration request flag (a variable on the memory in the ECU 30) is set. It also has a function of changing to “ON”.
- the ECU 30 also periodically checks whether or not the regeneration start condition is satisfied, and also has a function of starting the regeneration control process when the regeneration start condition is satisfied.
- the reproduction start condition is a condition set in advance as a start condition for the reproduction control process.
- the regeneration start condition is that the value of the PM regeneration request flag is ON and the internal combustion engine 10 is operating (fuel is burned in each cylinder 11 of the internal combustion engine 10).
- the regeneration control process refers to a post-injection of a specified amount of fuel to each fuel injection valve while updating the PM accumulation amount (decreasing the PM accumulation amount by the PM amount oxidized and removed by the regeneration control process). 12 is a process to be performed.
- This regeneration control process is a process in which the PM amount actually deposited in the filter 19b is substantially “0” when the regeneration control process is completed, and at the completion of the regeneration control process, the PM accumulation amount (deposited in the filter 19b is accumulated).
- the value managed by the ECU 30 as an estimated value of the amount of PM that is present) is “0”.
- the ECU 30 functions to change the value of the PM regeneration request flag to “OFF” when the regeneration control process is completed, or to regenerate the PM when stopping the operation of the internal combustion engine 10 during the regeneration control process (before completion). It also has a function of interrupting the playback control process without changing the value of the request flag.
- the ECU 30 stops the operation of the internal combustion engine 10 due to the stop of the vehicle, and the first situation monitoring process of the procedure shown in FIG. 2 when the value of the PM regeneration request flag is ON. It also has a function to execute periodically.
- the ECU 30 that has stopped the operation of the internal combustion engine 10 due to the stop of the vehicle periodically executes this first situation monitoring process when the value of the PM regeneration request flag is ON. It becomes.
- the ECU 30 first performs a process of measuring the catalyst bed temperature (the temperature of the catalyst 19a, the output of the temperature sensor 26) (step S101). Next, the ECU 30 determines whether or not the measured catalyst bed temperature is equal to or higher than a catalyst deactivation temperature ⁇ set in advance as a temperature at which the catalyst 19a is deactivated (step S102).
- step S105 When the catalyst bed temperature is lower than the catalyst deactivation temperature ⁇ (step S102; NO), the ECU 30 changes the value of the PM regeneration request flag to OFF (step S105), and then the first situation.
- the monitoring process ends. That is, in this case, the ECU 30 determines that the catalyst 19a has already been deactivated (the state of the exhaust gas purification device 19 has become incapable of being regenerated efficiently), and is regenerated by other processing upon restart. In order to prevent the control process from being executed (resumed), the value of the PM regeneration request flag is changed to OFF.
- the ECU 30 determines that the catalyst bed temperature is “a temperature lower than the normal catalyst bed temperature and higher than the catalyst deactivation temperature ⁇ . It is determined whether or not the bed temperature threshold value ⁇ is preset as “” (step S103).
- the normal catalyst bed temperature is the catalyst bed temperature (the catalyst bed temperature when a few minutes have passed after the internal combustion engine 10 is started) in a state where the temperature of each part of the exhaust purification device 19 is stable. is there.
- the ECU 30 determines whether the PM accumulation amount at that time is equal to or less than the accumulation amount threshold ⁇ (step S104).
- the accumulation amount threshold ⁇ is “the oxidation rate of PM does not decrease excessively, and the performance of the exhaust purification device 19 (catalyst 19a and filter 19b) deteriorates in a short time after the internal combustion engine 10 is restarted. It is a value (PM deposition amount) set in advance as “a PM deposition amount that does not occur”.
- the ECU 30 When the PM accumulation amount is equal to or less than the accumulation amount threshold ⁇ (step S104; YES), the ECU 30 changes the value of the PM regeneration request flag to OFF (step S105), and then performs the first situation monitoring process. Exit. That is, when the catalyst bed temperature is within the range of the bed temperature threshold value ⁇ to the bed temperature threshold value ⁇ and the PM accumulation amount is equal to or less than the accumulation amount threshold value ⁇ , the ECU 30 determines that the exhaust purification device 19 is in the state. Is in a state where it cannot be efficiently regenerated (a state in which a larger amount of fuel is required than usual for PM oxidation removal), and the regeneration control process is not executed by another process after the restart. In order to do this, the value of the PM regeneration request flag is changed to OFF.
- the ECU 30 determines whether the catalyst bed temperature is not lower than the bed temperature threshold ⁇ (step S103; NO) and when the PM accumulation amount is not lower than the accumulation amount threshold ⁇ (step S104; NO).
- the first situation monitoring process is terminated without changing the value of the reproduction request flag. That is, in these cases, the ECU 30 determines that the state of the exhaust purification device 19 is not in a state where it cannot be efficiently regenerated, and changes the value of the PM regeneration request flag without changing the value of the PM regeneration request flag.
- the status monitoring process ends. And ECU30 performs a 1st condition monitoring process again after progress of predetermined time.
- the ECU 30 is a unit that regenerates the exhaust purification device 19 in the form shown in FIG.
- the ECU 30 starts the regeneration control process (regeneration control in the figure). If it becomes necessary to stop the operation of the internal combustion engine 10 before the regeneration control process is completed, the ECU 30 stops the operation of the internal combustion engine 10 and interrupts the regeneration control process. In FIG. 3, the regeneration control process is interrupted at time T2 when the engine speed becomes zero. However, the ECU 30 according to the present embodiment actually interrupts the regeneration control process. 11 is when the supply of fuel for combustion in the engine 11 is stopped (that is, when the engine speed is 0).
- the ECU 30 enters a state in which the first situation monitoring process (FIG. 2) is repeated (executed periodically).
- the ECU 30 detects that the catalyst bed temperature is equal to or lower than the bed temperature threshold ⁇ at time T3 (step S103; YES)
- the ECU 30 determines whether the PM accumulation amount is equal to or less than the accumulation amount threshold ⁇ . Judgment is made (step S104). In the case shown in FIG. 3, the PM accumulation amount is equal to or less than the accumulation amount threshold ⁇ . Therefore, the ECU 30 changes the value of the PM regeneration request flag to OFF (step S105).
- the ECU 30 waits for the accelerator pedal to be operated.
- the accelerator pedal is operated at time T4
- the operation of the internal combustion engine 10 is started.
- the ECU 30 also checks whether or not the regeneration start condition is satisfied, but the regeneration start condition is not satisfied because the value of the PM regeneration request flag is OFF. Therefore, the ECU 30 does not start the regeneration control process.
- the ECU 30 starts the regeneration control process when the PM accumulation amount increases with the operation of the internal combustion engine 10 and the regeneration start condition is satisfied as a result (time T5 in the figure).
- step S105 of the first situation monitoring process is performed after the interruption of the regeneration control process accompanying the stoppage of the operation of the internal combustion engine 10.
- the ECU 30 has rewritten the value of the PM regeneration request flag to OFF.
- the regeneration control process is not resumed, and the regeneration control process is started when the regeneration start condition is subsequently satisfied.
- the first situation monitoring process is based on the catalyst bed temperature and the PM deposition amount, and the exhaust purification device 19 is in a state where a larger amount of fuel is required than usual for PM oxidation removal (the regeneration control process is efficient). If the state of the exhaust gas purification device 19 is in a state where a larger amount of fuel than usual is required for PM oxidation removal, the process of step S105 is performed. Processing is to be performed.
- the exhaust gas purification system consumes more fuel than the system that restarts the regeneration control process that was interrupted when the internal combustion engine stopped operating when the temperature of the catalyst exceeds the activation temperature.
- the system can regenerate the exhaust emission control device 19 in a small form.
- Second Embodiment >> Hereinafter, the same reference numerals as those used in the description of the exhaust purification system according to the first embodiment are used, and the configuration of the exhaust purification system according to the second embodiment of the present invention, centering on the parts different from the exhaust purification system, and Explain the function.
- the exhaust gas purification system according to the present embodiment is a system having the exhaust gas purification device 19 and the ECU 30 (parts for performing regeneration control processing of the ECU 30) as main components.
- the exhaust gas purification device 19 of the exhaust gas purification system according to the second embodiment does not include a sensor corresponding to the temperature sensor 26 (the temperature of the catalyst 19a cannot be measured).
- the ECU 30 of the exhaust purification system according to the second embodiment is configured (programmed) to perform the second situation monitoring process of the procedure shown in FIG. 4 instead of the first situation monitoring process described above.
- the ECU 30 of the exhaust purification system stops the operation of the internal combustion engine 10 by stopping the vehicle, and this second situation occurs when the value of the PM regeneration request flag is ON.
- the monitoring process is executed periodically.
- the ECU 30 that has started the second situation monitoring process first determines whether or not the stop time up to the present time (the elapsed time up to the present time after the operation of the internal combustion engine 10 is stopped) is equal to or less than the deactivation determination time ⁇ .
- the deactivation determination time ⁇ is a time set in advance as “a time when the catalyst 19a normally deactivates when the time elapses after the operation of the internal combustion engine 10 is stopped”. is there.
- step S201 If the stop time is not equal to or less than the deactivation determination time ⁇ (step S201; NO), the ECU 30 changes the value of the PM regeneration request flag to OFF (step S204), and then performs the second situation monitoring process. finish.
- step S201 when the stop time is equal to or less than the deactivation determination time ⁇ (step S201; YES), the ECU 30 preliminarily sets the stop time as a value less than the deactivation determination time ⁇ (a time during which the catalyst bed temperature does not decrease excessively). It is determined whether or not it is less than or equal to the set stop time threshold value ⁇ (step S202).
- step S203 the ECU 30 determines whether or not the PM accumulation amount at that time is equal to or less than the accumulation amount threshold ⁇ (step S203).
- step S203 the ECU 30 changes the value of the PM regeneration request flag to OFF (step S204), and then performs the second situation monitoring process.
- the ECU 30 determines PM when the stop time is not less than the deactivation determination time ⁇ (step S202; NO) and when the PM accumulation amount is not less than the accumulation amount threshold ⁇ (step S203; NO).
- the second situation monitoring process is terminated without changing the value of the reproduction request flag.
- ECU30 performs a 2nd condition monitoring process again after progress of predetermined time.
- the exhaust purification system according to the first embodiment described above determines the state of the exhaust purification device 19 (determination of whether or not the state of the exhaust purification device 19 cannot be efficiently regenerated).
- the system is based on the catalyst bed temperature (the temperature of the catalyst 19a)
- the exhaust purification system according to the second embodiment is a system that determines the state of the exhaust purification device 19 based on the stop time of the internal combustion engine 10. It has become.
- the exhaust purification system Since the stop time of the internal combustion engine 10 is information that is strongly correlated with the catalyst bed temperature after the stop of the internal combustion engine 10, the exhaust purification system according to this embodiment also performs exhaust purification with less fuel consumption. This is a system that can reproduce the device 19.
- the exhaust gas purification system (see FIG. 1) according to the third embodiment of the present invention is also similar to the exhaust gas purification system according to the second embodiment described above, and the exhaust gas purification device 19 and the ECU 30 (ECU 30) that cannot measure the temperature of the catalyst 19a.
- This is a system having a main component as a part for performing reproduction control processing of the above.
- the ECU 30 of the exhaust purification system according to the third embodiment is connected to a temperature sensor for measuring the temperature in the engine room of the vehicle (hereinafter referred to as environmental temperature). Further, in the ECU 30, for various temperatures, “when the operation of the internal combustion engine 10 is stopped in a situation where the environmental temperature is the temperature, the catalyst bed temperature is a certain temperature (corresponding to the above-described bed temperature threshold ⁇ ). A map (table) storing “time required for the temperature to fall to (temperature)” is set. Further, the ECU 30 is a unit configured (programmed) to perform the third situation monitoring process of the procedure shown in FIG. 5 instead of the above-described second situation monitoring process.
- the third situation monitoring process executed by the ECU 30 of the exhaust purification system according to the third embodiment is basically the same process as the second situation monitoring process (FIG. 4) (in steps S301, S303, and S304). Thus, the same processing as in steps S201, S203, and S204 is performed). However, in the third situation monitoring process, in step S302, after the time (hereinafter referred to as ⁇ (environment temperature)) associated with the environmental temperature at that time is read from the map, It is a process for determining whether or not the stop time up to that point is less than or equal to ⁇ (environment temperature).
- ⁇ environment temperature
- the exhaust purification system according to the present embodiment relates to the second embodiment so that the state of the exhaust purification device 19 is determined based on the stop time of the internal combustion engine 10 and the environmental temperature.
- the exhaust purification system has been improved. Therefore, the exhaust purification system according to the present embodiment is a system that can regenerate the exhaust purification device 19 in a form that consumes less fuel than the exhaust purification system according to the second embodiment.
- the state of the exhaust gas purification device 19 after the operation of the internal combustion engine 10 is such that the lower the environmental temperature, the more efficiently it cannot be regenerated (usually for PM oxidation removal). The situation where a larger amount of fuel is required). Therefore, in the exhaust purification system according to the second embodiment that determines whether or not the state of the exhaust purification device 19 is in a state where it cannot be efficiently regenerated based only on the stop time, the environmental temperature is the normal temperature. If they differ greatly, there is a phenomenon in which the regeneration control process is restarted when the internal combustion engine 10 is restarted even though the state of the exhaust gas purification device 19 is already in a state where it cannot be efficiently regenerated. Can happen.
- the exhaust purification system according to the present embodiment is a system that determines the state of the exhaust purification device 19 based on the stop time of the internal combustion engine 10 and the environmental temperature, that is, even if the environmental temperature is significantly different from the normal temperature. In this system, it is possible to accurately determine whether or not the exhaust purification device 19 is in a state where it cannot be efficiently regenerated. Therefore, the exhaust purification system according to the present embodiment is a system that can regenerate the exhaust purification device 19 in a form that consumes less fuel than the exhaust purification system according to the second embodiment because the above phenomenon does not occur. It will be.
- the exhaust purification system according to the fourth embodiment of the present invention performs the fourth situation monitoring process of the procedure shown in FIG. 6 instead of the first situation monitoring process (FIG. 2), and completes the regeneration control process.
- the ECU 30 of the exhaust purification system (FIG. 1) according to the first embodiment is reprogrammed so that the value of the variable pmcncl is sometimes initialized to “0”.
- the fourth situation monitoring process executed by the ECU 30 of the exhaust purification system according to the fourth embodiment is basically the same process as the first situation monitoring process (in steps S401 to S404 and S407, respectively). Steps S101 to S104 and S105 are performed).
- step S404 when the PM accumulation amount is equal to or less than the accumulation amount threshold ⁇ (step S404; YES), “1” is added to the variable pmcncl, and then the value of the variable pmcncl is equal to or less than the specified value ⁇ . Or not (steps S405 and S406), and only when the value of the variable pmcncl is less than or equal to the specified value ⁇ (step S405: YES), the process of rewriting the value of the PM regeneration request flag to OFF It has become.
- the PM accumulation amount managed by the ECU 30 is not a measured value of the PM amount remaining in the exhaust purification device 19, but a value updated based on the operating state of the internal combustion engine 10 and the execution state of the regeneration control process. Therefore, if the regeneration control process is interrupted many times without being completed, the accumulated amount of errors may cause the PM accumulation amount to differ greatly from the PM amount actually remaining in the exhaust purification device 19. Conceivable. If the PM accumulation amount is significantly different from the PM amount actually remaining in the exhaust purification device 19, “the amount of PM that should immediately restart the regeneration control process remains in the exhaust purification device 19. Nevertheless, a phenomenon such as “the regeneration control process is not resumed when the internal combustion engine 10 is restarted” or “the regeneration control process is not started at an appropriate timing” may occur.
- the regeneration control process is finally performed. It is desirable to keep it executed.
- the probability (probability) that the regeneration control process is completed is greater when the regeneration control process is restarted when the internal combustion engine 10 is restarted than when the regeneration control process is started when the regeneration start condition is satisfied again. Therefore, the exhaust purification system according to the fourth embodiment is configured as a system in which the ECU 30 performs the above-described processing.
- the exhaust purification system according to the fifth embodiment of the present invention is a system in which the following modification is applied to the exhaust purification system according to the above-described fourth embodiment.
- the exhaust purification system according to the fourth embodiment is a system in which the ECU 30 executes the fourth situation monitoring process (FIG. 6).
- the exhaust purification system according to the fifth embodiment has the ECU 30 in which the fourth situation monitoring process is performed. Is configured to execute a fifth situation monitoring process that is a process obtained by removing the process of step S406.
- the ECU 30 of the exhaust purification system according to the fourth embodiment stops the operation of the internal combustion engine 10 when the vehicle stops, but the ECU 30 of the exhaust purification system according to the fifth embodiment performs the regeneration control process.
- the vehicle stops during execution it is determined whether or not the value of the variable pmcncl is greater than or equal to a predetermined value. If the value of the variable pmcncl is less than the predetermined value, the operation of the internal combustion engine 10 is stopped. When the value of the variable pmcncl is equal to or greater than a predetermined value, the regeneration control process is continued without stopping the operation of the internal combustion engine 10.
- the exhaust gas purification system according to the fifth embodiment is a system that can regenerate the exhaust gas purification device 19 in a form that consumes less fuel, and that a problem caused by an error in the PM accumulation amount occurs. This is a system that can reliably (early) prevent the exhaust gas purification system according to the fourth embodiment described above.
- the exhaust purification system according to each of the above-described embodiments can be variously modified.
- the first to fourth situation monitoring processing is performed when the internal combustion engine 10 is restarted (determining whether to restart the regeneration control processing). It can be transformed into a system.
- the exhaust gas purification system according to each embodiment can be modified to a system for a hybrid vehicle or a system for a normal vehicle internal combustion engine system (a system in which idle stop is performed by operating an ignition key).
- the exhaust gas purification system is different from the system described in the specific configuration / processing procedure (for example, the system including the exhaust gas purification device 19 including only the filter 19b, the downstream portion of the catalyst 19a, A system in which the temperature is used as the catalyst bed temperature, a system in which the regeneration control process is continued while the crankshaft of the internal combustion engine 10 is rotating even when the operation of the internal combustion engine 10 is stopped, and a dedicated fuel injection as the regeneration control process It is a matter of course that the system may be modified into a system that performs a process of injecting fuel from the valve.
- the present invention relates to an exhaust gas purification system that purifies exhaust gas from an internal combustion engine by removing PM, and can be used to remove PM from exhaust gas from various internal combustion engines.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Exhaust Gas After Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
図1に、本発明の第1実施形態に係る排気浄化システムを適用した車両用内燃機関システムの構成を示す。なお、この車両用内燃機関システムにおける、排気浄化装置19、温度センサ26及びECU30(後述する再生制御処理や状況監視処理を行う部分)からなる部分が、第1実施形態に係る排気浄化システムに相当するものである。
また、再生制御処理とは、PM堆積量を更新しながら(PM堆積量を、再生制御処理により酸化除去されたPM量分、減少させながら)、規定量の燃料のポスト噴射を各燃料噴射弁12に行わせる処理のことである。この再生制御処理は、その完了時に、フィルタ19b内に実際に堆積しているPM量が、ほぼ“0”となる処理であると共に、その完了時に、PM堆積量(フィルタ19b内に堆積しているPM量の推定値としてECU30が管理している値)が“0”となる処理となっている。
以下、第1実施形態に係る排気浄化システムの説明時に用いたものと同じ符号を用いて、当該排気浄化システムと異なる部分を中心に、本発明の第2実施形態に係る排気浄化システムの構成及び機能を説明する。
本発明の第3実施形態に係る排気浄化システム(図1参照。)も、上記した第2実施形態に係る排気浄化システムと同様に、触媒19aの温度を実測できない排気浄化装置19とECU30(ECU30の再生制御処理等を行う部分)とを主要構成要素としたシステムである。
以下、本発明の第4実施形態に係る排気浄化システムの構成及び機能を、第1実施形態に係る排気浄化システム(図1)と異なる部分を中心に、説明する。
本発明の第5実施形態に係る排気浄化システムは、上記した第4実施形態に係る排気浄化システムに、以下の変形を施したシステムである。
上記した各実施形態に係る排気浄化システムは、様々な変形を行うとが出来る。例えば、第1~第4実施形態に係る排気浄化システムを、内燃機関10の再始動時に、第1~第4状況監視処理が行われる(再生制御処理を再開するか否かが決定される)システムに変形することが出来る。また、各実施形態に係る排気浄化システムを、ハイブリッド車用のシステムや、通常の車両用内燃機関システム(アイドルストップがイグニッションキー操作で行われるシステム)用のシステムに変形することも出来る。
11・・・気筒
12・・・燃料噴射弁
13・・・吸気マニホールド
14・・・吸気通路
15・・・エアクリーナ
16・・・インタークーラ
17・・・排気マニホールド
18・・・排気通路
19・・・排気浄化装置
19a・・・触媒
19b・・・フィルタ
20・・・ターボチャージャ
20a・・・コンプレッサハウジング
20b・・・タービンハウジング
21・・・エアフローメータ
22、26・・・温度センサ
23・・・吸気絞り弁
24・・・クランクポジションセンサ
25・・・水温センサ
29・・・アクセルポジションセンサ
30・・・ECU
Claims (4)
- 内燃機関の排気中のPMを捕集するための排気浄化装置と、
前記排気浄化装置の温度と前記排気浄化装置内に残っているPM量とを含む状況情報に基づき、前記排気浄化装置の状態が、燃料を排気中へ添加することにより前記排気浄化装置の温度を上昇させて前記排気浄化装置を再生する再生制御処理を効率的に行なえない再生実施不適当状態であるか否かを判定する判定手段と、
所定条件が満たされたときに、燃料を排気中へ添加することにより前記排気浄化装置の温度を上昇させて前記排気浄化装置を再生する再生制御処理を開始し、再生制御処理の実行中に前記内燃機関が停止された場合に、再生制御処理を中断する制御手段であって、再生制御処理を中断した後の前記内燃機関の始動時に、前記判定手段により前記排気浄化装置の状態が前記再生実施不適当状態であると判定されていない場合には、再生制御処理を再開し、前記判定手段により前記排気浄化装置の状態が前記再生実施不適当状態であると判定されている場合には、その後、前記所定条件が満たされたときに、再生制御処理を開始する制御手段と
を備えることを特徴とする排気浄化システム。 - 内燃機関の排気中のPMを捕集するための排気浄化装置と、
前記内燃機関の停止時間と前記排気浄化装置内に残っているPM量とを含む状況情報に基づき、前記排気浄化装置の状態が、燃料を排気中へ添加することにより前記排気浄化装置の温度を上昇させて前記排気浄化装置を再生する再生制御処理を効率的に行なえない再生実施不適当状態であるか否かを判定する判定手段と、
所定条件が満たされたときに、燃料を排気中へ添加することにより前記排気浄化装置の温度を上昇させて前記排気浄化装置を再生する再生制御処理を開始し、再生制御処理の実行中に前記内燃機関が停止された場合に、再生制御処理を中断する制御手段であって、再生制御処理を中断した後の前記内燃機関の始動時に、前記判定手段により前記排気浄化装置の状態が前記再生実施不適当状態であると判定されていない場合には、再生制御処理を再開し、前記判定手段により前記排気浄化装置の状態が前記再生実施不適当状態であると判定されている場合には、その後、前記所定条件が満たされたときに、再生制御処理を開始する制御手段と
を備えることを特徴とする排気浄化システム。 - 前記制御手段が、
連続的に、再生制御処理を再開すべきではないと判定した回数を、キャンセル回数として管理する手段であると共に、
前記判定手段により前記排気浄化装置の状態が前記再生実施不適当状態であると判定されている場合であっても、前記キャンセル回数が所定数以上となっている場合には、再生制御処理を再開する手段である
ことを特徴とする請求項1又は請求項2に記載の排気浄化システム。 - 前記内燃機関が、車両に搭載された、当該車両の停止時に自動的に停止される内燃機関である
ことを特徴とする請求項1乃至請求項3のいずれかに記載の排気浄化システム。
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US13/257,254 US20120124978A1 (en) | 2009-03-16 | 2009-03-16 | Exhaust gas purification system |
CN200980158131XA CN102356218A (zh) | 2009-03-16 | 2009-03-16 | 废气净化系统 |
JP2011504627A JP5223966B2 (ja) | 2009-03-16 | 2009-03-16 | 排気浄化システム |
PCT/JP2009/055006 WO2010106613A1 (ja) | 2009-03-16 | 2009-03-16 | 排気浄化システム |
EP09841819A EP2410141A1 (en) | 2009-03-16 | 2009-03-16 | Exhaust gas purifying system |
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PCT/JP2009/055006 WO2010106613A1 (ja) | 2009-03-16 | 2009-03-16 | 排気浄化システム |
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EP (1) | EP2410141A1 (ja) |
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DE102013201196B4 (de) * | 2012-03-15 | 2019-03-21 | Ford Global Technologies, Llc | Sicheres Betreiben eines Partikelfilters |
WO2017002463A1 (ja) * | 2015-06-30 | 2017-01-05 | 株式会社デンソー | 粒子状物質検出システム |
JP6528757B2 (ja) * | 2016-11-25 | 2019-06-12 | トヨタ自動車株式会社 | 車両の制御装置 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04265412A (ja) | 1991-02-20 | 1992-09-21 | Toyota Motor Corp | 内燃機関の排気微粒子捕集装置 |
JPH05195751A (ja) | 1992-01-24 | 1993-08-03 | Nippondenso Co Ltd | 内燃機関の排気浄化装置 |
JP2002349237A (ja) * | 2001-05-25 | 2002-12-04 | Toyota Motor Corp | 排気ガス浄化装置 |
JP2004132202A (ja) | 2002-10-08 | 2004-04-30 | Hino Motors Ltd | 排気浄化装置 |
JP2004176602A (ja) | 2002-11-26 | 2004-06-24 | Toyota Motor Corp | 内燃機関の制御装置 |
JP2005090390A (ja) * | 2003-09-18 | 2005-04-07 | Nissan Motor Co Ltd | 内燃機関の排気浄化装置 |
JP2005256723A (ja) * | 2004-03-11 | 2005-09-22 | Toyota Motor Corp | 車載内燃機関の排気浄化装置 |
JP2006291850A (ja) | 2005-04-11 | 2006-10-26 | Toyota Motor Corp | 内燃機関の排気浄化システム |
JP2008202574A (ja) * | 2007-02-22 | 2008-09-04 | Toyota Motor Corp | 車載ディーゼルエンジンの排気浄化装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002295238A (ja) * | 2001-03-29 | 2002-10-09 | Isuzu Motors Ltd | ディーゼルパティキュレートフィルタ装置の制御方法 |
JP3948437B2 (ja) * | 2003-06-23 | 2007-07-25 | いすゞ自動車株式会社 | 排気ガス浄化方法及び排気ガス浄化システム |
JP4270305B2 (ja) * | 2007-05-30 | 2009-05-27 | トヨタ自動車株式会社 | ハイブリッド車両 |
-
2009
- 2009-03-16 CN CN200980158131XA patent/CN102356218A/zh active Pending
- 2009-03-16 JP JP2011504627A patent/JP5223966B2/ja not_active Expired - Fee Related
- 2009-03-16 US US13/257,254 patent/US20120124978A1/en not_active Abandoned
- 2009-03-16 EP EP09841819A patent/EP2410141A1/en not_active Withdrawn
- 2009-03-16 WO PCT/JP2009/055006 patent/WO2010106613A1/ja active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04265412A (ja) | 1991-02-20 | 1992-09-21 | Toyota Motor Corp | 内燃機関の排気微粒子捕集装置 |
JPH05195751A (ja) | 1992-01-24 | 1993-08-03 | Nippondenso Co Ltd | 内燃機関の排気浄化装置 |
JP2002349237A (ja) * | 2001-05-25 | 2002-12-04 | Toyota Motor Corp | 排気ガス浄化装置 |
JP2004132202A (ja) | 2002-10-08 | 2004-04-30 | Hino Motors Ltd | 排気浄化装置 |
JP2004176602A (ja) | 2002-11-26 | 2004-06-24 | Toyota Motor Corp | 内燃機関の制御装置 |
JP2005090390A (ja) * | 2003-09-18 | 2005-04-07 | Nissan Motor Co Ltd | 内燃機関の排気浄化装置 |
JP2005256723A (ja) * | 2004-03-11 | 2005-09-22 | Toyota Motor Corp | 車載内燃機関の排気浄化装置 |
JP2006291850A (ja) | 2005-04-11 | 2006-10-26 | Toyota Motor Corp | 内燃機関の排気浄化システム |
JP2008202574A (ja) * | 2007-02-22 | 2008-09-04 | Toyota Motor Corp | 車載ディーゼルエンジンの排気浄化装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020051376A (ja) * | 2018-09-28 | 2020-04-02 | いすゞ自動車株式会社 | 排気浄化装置の制御装置、及び車両 |
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