CN114294077A - Filter regeneration method for engineering vehicle and engine after-treatment system - Google Patents
Filter regeneration method for engineering vehicle and engine after-treatment system Download PDFInfo
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- CN114294077A CN114294077A CN202111579940.7A CN202111579940A CN114294077A CN 114294077 A CN114294077 A CN 114294077A CN 202111579940 A CN202111579940 A CN 202111579940A CN 114294077 A CN114294077 A CN 114294077A
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- 238000011069 regeneration method Methods 0.000 title claims abstract description 113
- 230000008929 regeneration Effects 0.000 claims abstract description 98
- 230000009471 action Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 11
- 239000013618 particulate matter Substances 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000007726 management method Methods 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000011157 data evaluation Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
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- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention relates to an engineering vehicle and a filter regeneration method of an engine aftertreatment system, wherein the engineering vehicle comprises: the hydraulic system comprises a hydraulic actuator and a control valve (8) for controlling the action of the hydraulic actuator; the engine comprises an engine body, an engine controller (4) electrically connected with the engine body and an engine aftertreatment system (5) in signal connection with the engine controller (4), wherein the engine aftertreatment system (5) comprises a filter communicated with an exhaust gas discharge port of the engine body; the manual regeneration switch (3) is in signal connection with the engine controller (4); the engine controller (4) is configured to send command information for closing the control valve (8) when the manual regeneration switch (3) is opened and control the engine after-treatment system (5) to perform regeneration treatment on the filter, so that the problem of filter regeneration failure caused by operation of equipment by an operator in the filter regeneration process in the related art is solved.
Description
Technical Field
The invention relates to the technical field of vehicle tail gas treatment, in particular to a filter regeneration method for an engineering vehicle and an engine aftertreatment system.
Background
In recent years, with the increasing perfection of environmental protection regulations, the emission requirements of engineering machinery engines are also becoming stricter. Currently, an engine after-treatment technology is widely adopted in engines such as european IV (european IV stage non-road emission regulation), european V (european V stage non-road emission regulation), and national IV (chinese IV stage non-road emission regulation), and therefore an engine exhaust after-treatment system becomes more and more important in engineering machinery. An engine exhaust gas aftertreatment system traps Particulate Matter (PM) contained in exhaust gas from a Diesel engine by a dedicated Filter (DPF). In the aftertreatment system, since filter clogging occurs when the amount of PM accumulated trapped by the filter increases, it is necessary to perform regeneration processing for burning the trapped PM to remove the clogging of the filter. There are two existing regeneration modes for an excavator to actively regenerate with a diesel engine aftertreatment system.
When the excavator is in a high-load operation state and the regeneration condition is met, the engine can automatically regenerate in the automatic regeneration mode.
In the following cases: 1. under some special working conditions, the engine runs under low load for a long time, when the carbon loading amount or continuous working time of a Diesel Particulate Filter (DPF) reaches a threshold value, an automatic regeneration request is generated at the moment, but other conditions, such as DOC (diesel oxidation catalyst) (DOC) inlet temperature and engine water temperature, cannot meet the requirements, so that automatic regeneration cannot be finally carried out; 2. when the engine is performing automatic regeneration or issuing an automatic regeneration request, the operator suddenly stops, resulting in automatic regeneration failure; 3. the operator will prohibit the regeneration switch from being pressed down by mistake. Manual regeneration is required to perform engine regeneration to ensure proper operation of the engine aftertreatment system. Since the control complexity of the engine aftertreatment system determines the severity of the aftertreatment manual regeneration condition, the operation habit of a user is required to be met as much as possible under the condition that the aftertreatment regeneration function can work normally.
CN105026706B discloses a management device of a post-processing device, a work vehicle, a management system, and a management method of a post-processing device.
At present, the manual regeneration control mode of the traditional excavator engine post-treatment system is too simple, when the engine runs for a period of time at low speed and low load, the accumulated soot in the DPF is too much, at the moment, the engine must stop acting to carry out manual regeneration, and a user cannot meet the conditions required by the manual regeneration under the normal operation condition, so that the engine cannot be regenerated; in addition, in the regeneration process of the engine, a user can not operate the excavator in principle, but the user can still operate the excavator by the existing control method, and the regeneration of the engine (except for traveling regeneration) can be forcibly interrupted at the moment, so that the regeneration fails.
Disclosure of Invention
The invention aims to provide a filter regeneration method of an engineering vehicle and an engine after-treatment system, which aims to solve the problem of filter regeneration failure caused by equipment operation of an operator in the filter regeneration process in the related art.
According to an aspect of an embodiment of the present invention, there is provided an engineering vehicle including: the hydraulic system comprises a hydraulic actuator and a control valve for controlling the action of the hydraulic actuator; the engine comprises an engine body, an engine controller electrically connected with the engine body and an engine aftertreatment system in signal connection with the engine controller, wherein the engine aftertreatment system comprises a filter communicated with an exhaust gas discharge port of the engine body; the manual regeneration switch is in signal connection with the engine controller; the engine controller is configured to issue command information to close the control valve and control the engine aftertreatment system to regenerate the filter when the manual regeneration switch is opened.
In some embodiments, the work vehicle further comprises: a manipulation handle configured to control opening and closing of the control valve; and an electronic monitor including a screen configured to display a prompt message to prompt an operator to close the control valve by operating the manipulation handle after the engine controller issues a command message to close the control valve.
In some embodiments, the engineering vehicle further comprises a main controller, wherein the main controller is respectively in signal connection with the engine controller and the electronic monitor to control the electronic monitor to display prompt information after the engine controller sends command information for closing the control valve.
In some embodiments, the engineering vehicle further comprises a throttle knob for controlling a throttle position of the engine body, and the main controller is in signal connection with the throttle knob to detect the position of the throttle knob after the control valve is closed.
In some embodiments, the main controller is further configured to control the electronic monitor to display information prompting the operator to adjust the gear of the throttle knob to the lowest gear when the throttle knob is detected not to be in the lowest gear.
In some embodiments, the main controller is further configured to control the engine to adjust the throttle opening to a zero opening when the throttle knob is detected to be in the lowest gear position, so that the engine body is in an idling state.
In some embodiments, the hydraulic system further includes a valve in communication with the hydraulic actuator for controlling operation of the hydraulic actuator, the control valve including a pilot solenoid valve in communication with the valve.
According to another aspect of the invention, there is also provided a filter regeneration method of the engine after-treatment system of the engineering vehicle, which comprises the following steps: a shutdown step: closing the control valve to bring the hydraulic system into a stopped state when the manual regeneration switch is turned on; and, a regeneration step: and controlling an engine aftertreatment system to perform regeneration work on the filter.
In some embodiments, the filter regeneration method of an engine after-treatment system of a construction vehicle further includes an accelerator opening adjusting step performed between the stopping step and the regenerating step, the accelerator opening adjusting step including adjusting the accelerator opening to a zero opening to bring the engine body into an idling state.
In some embodiments, the method for regenerating a filter of an engine after-treatment system of a work vehicle further comprises a step of throttle shift adjustment performed between the step of stopping and the step of throttle opening adjustment, the step of throttle shift adjustment comprising: detecting whether the gear of an accelerator knob is in the lowest gear or not; and if the gear of the accelerator knob is not at the lowest gear, reminding an operator to adjust the gear of the accelerator knob to the lowest gear.
By applying the technical scheme of the invention, when a user carries out filter regeneration by operating the manual regeneration switch, the engine controller sends command information for closing the control valve, and after the control valve is closed, the hydraulic actuator of the engineering vehicle is prohibited from working, so that the problem of filter regeneration failure caused by operating equipment by an operator in the filter regeneration process in the related art is solved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings needed to be used in the description of the embodiments or the related art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a system block diagram of a work vehicle according to an embodiment of the present invention.
Fig. 2 shows a schematic configuration diagram of a filter regeneration method of an engine after-treatment system of a working vehicle according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the working vehicle of the present embodiment includes a hydraulic system, an engine, and a manual regeneration switch 3. The hydraulic system comprises a hydraulic actuator and a control valve 8 controlling the action of the hydraulic actuator. The engine comprises an engine body, an engine controller 4 electrically connected with the engine body and an engine aftertreatment system 5 in signal connection with the engine controller 4, wherein the engine aftertreatment system 5 comprises a filter communicated with an exhaust gas discharge port of the engine body. The manual regeneration switch 3 is in signal connection with the engine controller 4. The engine controller 4 is configured to issue command information for closing the control valve 8 and control the engine aftertreatment system 5 to perform a regeneration process on the filter when the manual regeneration switch 3 is turned on.
In the present embodiment, when the user performs filter regeneration by operating the manual regeneration switch 3, the engine controller 8 issues a command message to close the control valve 8, and after the control valve 8 is closed, the hydraulic actuator of the work vehicle is prohibited from operating, thereby improving the problem of failure of filter regeneration due to the operation of equipment by the operator during filter regeneration in the related art.
In some embodiments, the work vehicle further comprises a steering handle 9 and an electronic monitor 1.
The manipulation handle 9 is configured to control the control valve 8 to open and close. The electronic monitor 1 includes a screen configured to display a prompt message to prompt an operator to close the control valve 8 by operating the manipulation handle 9 after the engine controller 4 issues a command message to close the control valve 8.
In some embodiments, the engineering vehicle further comprises a main controller 2, wherein the main controller 2 is in signal connection with the engine controller 4 and the electronic monitor 1 respectively, so as to control the electronic monitor 1 to display a prompt message after the engine controller 4 sends out a command message for closing the control valve 8, so as to prompt an operator to close the control valve 8 by operating the control handle 9.
In some embodiments, the work vehicle further comprises a throttle knob 6 for controlling a throttle position of the engine body, and the main controller 2 is in signal connection with the throttle knob 6 to detect the position of the throttle knob 6 after the control valve 8 is closed.
In some embodiments, the main controller 2 is further configured to control the electronic monitor 1 to display information prompting the operator to adjust the gear position of the throttle knob 6 to the lowest gear position when the throttle knob 6 is detected not to be in the lowest gear position.
In some embodiments, the main controller 2 is further configured to control the engine to adjust the accelerator opening to zero opening when the accelerator knob 6 is detected to be in the lowest gear position, so that the engine body is in an idling state.
In some embodiments, the hydraulic system further comprises a valve in communication with the hydraulic actuator for controlling operation of the hydraulic actuator, and the control valve 8 comprises a pilot solenoid valve in communication with the valve.
According to another aspect of the invention, there is also provided a filter regeneration method of an engine after-treatment system of the engineering vehicle, the regeneration method comprising: a shutdown step: closing the control valve 8 to put the hydraulic system in a stopped state when the manual regeneration switch 3 is turned on; a regeneration step: and controlling the engine aftertreatment system 5 to perform regeneration work on the filter.
In some embodiments, the filter regeneration method of an engine after-treatment system of a construction vehicle further includes an accelerator opening adjusting step performed between the stopping step and the regenerating step, the accelerator opening adjusting step including adjusting the accelerator opening to a zero opening to bring the engine body into an idling state.
In some embodiments, the method for regenerating a filter of an engine after-treatment system of a work vehicle further comprises a step of throttle shift adjustment performed between the step of stopping and the step of throttle opening adjustment, the step of throttle shift adjustment comprising: detecting whether the gear of the accelerator knob 6 is in the lowest gear; if the gear of the accelerator knob 6 is not at the lowest gear, an operator is reminded to adjust the gear of the accelerator knob 6 to the lowest gear. The specific flow of the filter regeneration method of the engine after-treatment system of the engineering vehicle refers to the figure 2. Where the ECM is the engine controller 4.
Optionally, the work vehicle of the present embodiment includes an excavator.
Specifically, the engineering vehicle comprises an electronic monitor 1, a main controller 2, a manual regeneration switch 3, an engine controller 4, an engine aftertreatment system 5, an accelerator knob 6, a pilot hydraulic system 7, a control valve 8 and a control handle 9. The control valve 8 is a pilot solenoid valve.
The electronic monitor 1, the engine controller 4 and the accelerator knob 6 are all interconnected with the main controller 2 through a CAN bus so as to transmit various information in the regeneration process of the filter. The engine aftertreatment system 5 and the engine controller 4 are interconnected by a CAN bus so that the engine controller 4 controls the engine aftertreatment system 5 to execute various instructions. The control valve 8 is electrically connected with the main controller 2 to send the on-off state of the control handle 9 and control whether the control valve 8 works or not, and the control valve 8 is connected in the pilot hydraulic oil circuit. The control valve 8 is not electrified, the pilot oil way cannot build pressure, and the engineering vehicle cannot act. The electronic monitor 1 and the main controller 2 realize real-time communication through a CAN bus so as to transmit various post-processing regeneration related information to a user in real time for guiding the user to operate steps correctly. The electronic monitor 1 and the engine controller 4 acquire the state of the engine aftertreatment system in real time through the CAN bus. The manual regeneration switch 3 is electrically connected to the engine controller 4 to receive a regeneration trigger signal transmitted to the controller by a user.
Preferably, the electronic monitor 1 may remind an operator that the engine is about to speed up and generate high exhaust temperature before the engine performs filter regeneration of the aftertreatment system, and select a proper site for regeneration; during the regeneration process, the main controller 2 receives the bus data of the engine controller to prompt a user to regenerate each process stage in real time, and after the regeneration is finished, the user is prompted to finish the regeneration and can perform other operations. The main controller 2 can also judge various failures such as abnormal suspension and the like occurring in the regeneration process and display possible reasons to remind an operator through an electronic monitor.
When the engineering vehicle is in a regeneration prohibition state for a long time or runs for a period of time under low load for a long time, manual regeneration is needed at the time, the engine controller 4 sends a manual regeneration request to the main controller 2, the main controller 2 sends a manual regeneration request instruction to the electronic monitor 1, the electronic monitor 1 reminds an operator of the need of manual regeneration through a screen, the operator is prompted to press the manual regeneration switch 3, the engine controller 4 receives a manual regeneration instruction, and the engine controller 4 sends a manual regeneration preparation instruction to the main controller 2. At this moment, the main controller 2 transmits a manual regeneration preparation signal to the instrument through the bus, and the instrument firstly reminds a user through the floating screen: the engine is about to speed up and produce exhaust high temperature, selects suitable place to regenerate, then judges the state of control handle 9 at present, if control handle 9 is in the open mode this moment, and main control unit 2 reminds the user through the instrument and closes the safety handle, and the user continues to request regeneration after closing control handle 9.
Further, the main controller 2 judges whether the accelerator knob 6 is in a first gear at the moment, a non-first gear prompts a user to place the accelerator knob 6 in the first gear, after the first gear is reached, the main controller 2 reads whether the accelerator of the engine is in a zero opening state at the moment through a bus (through program setting, when a safety handle is closed, and the accelerator knob 6 is in the first gear position, the main controller 2 sends a zero opening request to the engine controller 4), if the request fails, the non-zero opening state at the moment, the main controller prompts the user to regenerate faults through an instrument, the user manually sets the current accelerator of the engine to be the zero opening through the electronic monitor 1, and then the regeneration is continuously requested to the engine controller 4. If the above conditions are all satisfied, the main controller 2 immediately sends permission for manual regeneration to the engine controller 4, at which time the engine controller starts to control the engine aftertreatment system to start manual regeneration. In the regeneration process, the main controller 2 will cut off the hydraulic control valve and prompt the operator to regenerate all relevant information currently in real time. After regeneration is completed, the engine controller 4 sends regeneration success information to the engineering vehicle main controller, the main controller sends related information to the electronic monitor to prompt a user that manual regeneration is successful, and at the moment, the engineering vehicle main controller relieves hydraulic pilot limitation and allows the user to perform other conventional operations.
If the operator needs to interrupt the regeneration for a special reason in the regeneration process, the operator can press a regeneration prohibiting button, at this time, the main controller 2 saves the current state, and prompts the user through the electronic monitor 1 that the regeneration is temporarily interrupted, whether the regeneration is continued or not, and after the regeneration condition is met, the operator can continue the manual regeneration after selecting the continuation. If the main controller 2 monitors that the regeneration is prohibited for a long time, the electronic monitor 1 prompts a user to check a post-treatment device such as a post-treatment DPF and the like, confirms whether regeneration is needed or not, and simultaneously prompts an operator to drive an engineering vehicle into a proper place and to carry out regeneration far away from inflammable and explosive places such as dust and the like; if the user monitors that the regeneration is performed recently and still frequently receives the manual regeneration signal, the user is prompted that the regeneration is performed recently and the regeneration operation is not required to be performed.
The main controller 2 also monitors and records the regeneration history state of the engine through the engine controller 4, so as to carry out big data evaluation on the health state of the engine after-treatment device and carry out operation advice of regeneration period and the like for an operator.
The present invention is not limited to the above exemplary embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A work vehicle, characterized by comprising:
the hydraulic system comprises a hydraulic actuator and a control valve (8) for controlling the action of the hydraulic actuator;
the engine comprises an engine body, an engine controller (4) electrically connected with the engine body and an engine aftertreatment system (5) in signal connection with the engine controller (4), wherein the engine aftertreatment system (5) comprises a filter communicated with an exhaust gas discharge port of the engine body;
the manual regeneration switch (3) is in signal connection with the engine controller (4); and
the engine controller (4) is configured to issue command information to close the control valve (8) and control the engine aftertreatment system (5) to regenerate the filter when the manual regeneration switch (3) is opened.
2. The work vehicle of claim 1, further comprising:
a manipulation handle (9) configured to control the control valve (8) to open and close;
an electronic monitor (1) comprising a screen configured to display a prompt message to prompt an operator to close the control valve (8) by operating the manipulation handle (9) after the engine controller (4) issues a command message to close the control valve (8).
3. The engineering vehicle according to claim 2, characterized by further comprising a main controller (2), wherein the main controller (2) is in signal connection with an engine controller (4) and the electronic monitor (1) respectively, so as to control the electronic monitor (1) to display the prompt message after the engine controller (4) sends out a command message for closing the control valve (8).
4. The work vehicle according to claim 2, characterized in that it further comprises a throttle knob (6) for controlling the throttle gear of the engine block, said main controller (2) being in signal connection with said throttle knob (6) to detect the gear of said throttle knob (6) after said control valve (8) is closed.
5. The work vehicle according to claim 4, characterized in that the main controller (2) is further configured to control the electronic monitor (1) to display information prompting an operator to adjust the gear of the throttle knob (6) to the lowest gear when the throttle knob (6) is detected not to be in the lowest gear.
6. The work vehicle according to claim 4 or 5, characterized in that the main controller (2) is further configured to control the engine to adjust a throttle opening to a zero opening when the throttle knob (6) is detected to be in a lowest gear position, so that the engine body is in an idling state.
7. A working vehicle according to claim 1, characterized in that the hydraulic system further comprises a valve in communication with the hydraulic actuator for controlling the operation of the hydraulic actuator, the control valve (8) comprising a pilot solenoid valve in communication with the valve.
8. A filter regeneration method of an engine after-treatment system of a working vehicle according to any one of claims 1 to 7,
a shutdown step: closing the control valve (8) when the manual regeneration switch (3) is opened to bring the hydraulic system to a stop state;
a regeneration step: and controlling the engine aftertreatment system (5) to perform regeneration work on the filter.
9. The filter regeneration method of an engine after-treatment system of a construction vehicle according to claim 8, further comprising an accelerator opening adjustment step performed between the stop step and the regeneration step, the accelerator opening adjustment step including adjusting an accelerator opening to a zero opening so that the engine body is in an idling state.
10. The filter regeneration method of an engine after-treatment system of a construction vehicle according to claim 9, further comprising a throttle shift adjusting step performed between the stopping step and the throttle opening adjusting step, the throttle shift adjusting step comprising:
detecting whether the gear of the accelerator knob (6) is in the lowest gear or not; and
and if the gear of the accelerator knob (6) is not in the lowest gear, reminding an operator to adjust the gear of the accelerator knob (6) to the lowest gear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111579940.7A CN114294077A (en) | 2021-12-22 | 2021-12-22 | Filter regeneration method for engineering vehicle and engine after-treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111579940.7A CN114294077A (en) | 2021-12-22 | 2021-12-22 | Filter regeneration method for engineering vehicle and engine after-treatment system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688450A (en) * | 2007-11-06 | 2010-03-31 | 日立建机株式会社 | Exhaust purification system for work vehicle |
| CN102146832A (en) * | 2011-03-17 | 2011-08-10 | 三一重机有限公司 | Method and device for controlling regeneration of postprocessing of construction machinery |
| EP2666987A1 (en) * | 2012-05-25 | 2013-11-27 | Peugeot Citroën Automobiles Sa | Method for controlling the regeneration of a particle filter of an exhaust system |
| CN105971747A (en) * | 2016-06-27 | 2016-09-28 | 南京依维柯汽车有限公司 | Method for manual regeneration of DPF by driver |
| JP2017198152A (en) * | 2016-04-28 | 2017-11-02 | 株式会社豊田自動織機 | DPF manual regeneration control device |
-
2021
- 2021-12-22 CN CN202111579940.7A patent/CN114294077A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688450A (en) * | 2007-11-06 | 2010-03-31 | 日立建机株式会社 | Exhaust purification system for work vehicle |
| CN102146832A (en) * | 2011-03-17 | 2011-08-10 | 三一重机有限公司 | Method and device for controlling regeneration of postprocessing of construction machinery |
| EP2666987A1 (en) * | 2012-05-25 | 2013-11-27 | Peugeot Citroën Automobiles Sa | Method for controlling the regeneration of a particle filter of an exhaust system |
| JP2017198152A (en) * | 2016-04-28 | 2017-11-02 | 株式会社豊田自動織機 | DPF manual regeneration control device |
| CN105971747A (en) * | 2016-06-27 | 2016-09-28 | 南京依维柯汽车有限公司 | Method for manual regeneration of DPF by driver |
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Application publication date: 20220408 |