CN109630247A - A kind of diesel particulate trap regeneration prediction technique - Google Patents
A kind of diesel particulate trap regeneration prediction technique Download PDFInfo
- Publication number
- CN109630247A CN109630247A CN201811508284.XA CN201811508284A CN109630247A CN 109630247 A CN109630247 A CN 109630247A CN 201811508284 A CN201811508284 A CN 201811508284A CN 109630247 A CN109630247 A CN 109630247A
- Authority
- CN
- China
- Prior art keywords
- operating condition
- value
- engine
- dpf
- regeneration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The present invention provides a kind of diesel particulate traps to regenerate prediction technique, includes the following steps: step 1: reading the Annual distribution ratio p in each section in current or representative engine operating condition statistical form；Step 2: reading the particle emission value W that the section is corresponded in engine particulate emission model；Step 3: calculating DPF grain value average growth rateStep 4: obtaining DPF present granule value M, calculate the remainder particulate value Wr=Wmax-M before reaching regeneration；Step 5: calculate dpf regeneration remaining time or mileage under the operating condition:Comparing current dpf regeneration strategy can only could remind user to carry out regenerated technology after particulate matter accumulated value or the both ends DPF pressure difference reach limit value, the present invention, which can give the user, reaches regenerated remaining time/mileage information next time, it allows users to more clearly understand the next reproduction time, so as to reasonable arrangement regeneration, the influence to regular traffic is reduced or avoided.
Description
Technical field
The present invention relates to vehicle networking technical fields more particularly to a kind of diesel particulate trap to regenerate prediction technique.
Background technique
Diesel particulate trap (DPF) is a kind of filter for installation being mounted in diesel engine emissions system, it
It can be intercepted and be accumulated on filtering material before it enters atmosphere with the particulate matter in escape engine tail gas.With
The particulate matter accumulated on filtering material is more and more, will lead to filtering hole plug, increases exhaust resistance, leads to engine power
Decline.At this moment it needs to clear up particle in time, guarantees the normal work of DPF, this process is exactly dpf regeneration.
Dpf regeneration is divided into initiative regeneration and passive regeneration two ways.Controller can pass through extra injection when initiative regeneration
The control means such as fuel oil promote delivery temperature, to reach the burning point (550~600 degrees Celsius) of particulate matter, make accumulation in filter
In particle by with faster speed burn remove.Passive regeneration refers to transports when engine is under high revolving speed and high load capacity operating condition
When turning, the condition of burning particulate matter is had reached into the delivery temperature of grain catcher, the particulate matter accumulated in filter can be certainly
It is dynamic to carry out smoulder removal.
The chemistry of the control of the uncontrolled device of the process of passive regeneration, place one's entire reliance upon exhaust after treatment system and tail gas is anti-
It should complete.And the entrance of initiative regeneration must generally be triggered manually by user, or obtained by engine controller according to assessment
Grain object cumulant or the pressure difference at DPF both ends are judged.
For part diesel engine for automobile, operating parameter can be adjusted when engine is run, to promote delivery temperature realization
Initiative regeneration.In the process, the normal work of vehicle and unaffected.But for Some vehicles (such as school bus, mail van
Deng) and off roaders and the mechanical equipment such as tractor, fork truck, on the one hand, because its workload is generally little, it is unfavorable for
The realization of passive regeneration.Meanwhile because its working environment is special, to prevent high-temperature exhaust air from bringing security risk, one side work is not allowed
It regenerates, vehicle/machinery can only be remained static on one side, triggered manually by user and carry out original place initiative regeneration.
When the particulate matter cumulant in vehicle/mechanical equipment DPF, which reaches, to be regenerated, the work of user
It will be affected.User has to stop current work, and vehicle is placed in original place and triggers regeneration, after waiting regeneration to complete
It can resume work.If being regenerated not in time, DPF particulate matter may be made to be cumulative too high and result in blockage, cause to start motor-driven
The case where power is insufficient, gently then influences the work of vehicle/mechanical equipment, and weight can not work it will cause engine misses.In addition,
The serious excessively high DPF of particulate matter cumulant possibly can not reduce particle by actively or passively regenerating on vehicle/mechanical equipment,
It can only remove and use sets of special equipment for maintenance eliminating particle object.
Currently, the triggering of the dpf regeneration controller that places one's entire reliance upon to the assessment of particulate matter cumulant existing in DPF and is detectd
It surveys.
Judge whether that the method for meeting triggering regeneration condition mainly there are two: first is that by establishing engine in different operations
The particulate emission model for (being based primarily upon engine speed, torque and speed etc.) under operating condition is persistently based on real-time operating condition
It adds up to particulate matter cumulant, to calculate the particulate matter cumulant in current DPF and judge whether to reach or surpass
DPF operational safety limit value is crossed, as shown in Figure 1.Second is that whether real time monitoring DPF by the differential pressure pickup for being installed on the both ends DPF
There are the limit values that particulate matter cumulant meets or exceeds dpf regeneration, as shown in Figure 2.When the particulate matter cumulant in the DPF of measuring and calculating
Or DPF pressure at two ends difference, when being more than a certain limit value, controller prompt user DPF needs to regenerate, or automatically into reproduced state.
The limitation of above scheme is: can only assess the particulate matter cumulant in current DPF, then according to current
DPF particulate matter cumulant decides whether to carry out dpf regeneration work, can not to the remaining runtime for reaching dpf regeneration or
Person's mileage provides prediction, and user is allowed to arrange dpf regeneration opportunity for greater flexibility.
Summary of the invention
In order to solve the above problem in the prior art, the invention proposes a kind of regeneration of diesel particulate trap to predict
Method (i.e. regeneration remaining time/mileage prediction technique), is calculated by the growth rate to particulate matter cumulant, is come pre-
It surveys particulate matter in DPF to reach blocking or need to trigger regenerated time or mileage, it is regenerated surplus next time to provide the user with arrival
Remaining runing time or mileage facilitate user's schedule ahead dpf regeneration, the influence to normal work are reduced or avoided.
The invention proposes a kind of diesel particulate traps to regenerate remaining time/mileage prediction technique, including as follows
Step:
Step 1: the Annual distribution ratio p in each section in engine operating condition statistical form is read, in the operating condition statistical form
Laterally indicate the revolving speed of engine, longitudinal torque for indicating engine, the section is by specific speed revolution value range and specific
Torque value range limit, the Annual distribution ratio refers to specific speed revolution value range and specific torque value range
Time used accounts for the ratio of entire engine on time；
Step 2: reading the particle emission value W that the section is corresponded in engine particulate emission model；
Step 3: calculating DPF grain value average growth rateThe average growth rate is equal to each particle emission value and multiplies
With the sum of the Annual distribution ratio for corresponding to section, i.e.,
Step 4: obtaining DPF present granule value M, calculate the remainder particulate value Wr=Wmax-M before reaching regeneration；Wherein,
Wmax is the largest particles value that DPF allows, and belongs to the inherent characteristic of DPF；
Step 5: calculating dpf regeneration remaining time or mileage under the engine operating condition, the regeneration remaining time
Preferably, the engine operating condition statistical form includes present engine operating condition statistical form and representative engine operating condition system
Table is counted, the engine operating condition includes present engine operating condition and representative engine operating condition.
Preferably, the representative engine operating condition include: urban traffic situation, high-speed road conditions, comprehensive road condition etc., full-load run,
Idle running and comprehensive operating condition.
It preferably, further include that the step for obtaining engine operating condition statistical form is counted by vehicle motor operating condition before step 1
Suddenly.
Preferably, the engine particulate emission model first passes through statistics in advance and obtains.
Preferably, in step 5, the regeneration remaining mileage is obtained by regeneration remaining time t and car speed.
The invention has the following beneficial effects:
Compare current dpf regeneration strategy can only after particulate matter accumulated value or the both ends DPF pressure difference reach limit value ability
User is reminded to carry out regenerated technology, the present invention, which can give the user, reaches regenerated remaining time/mileage information next time, makes
User can more clearly understand the next reproduction time, and so as to reasonable arrangement regeneration, the influence to regular traffic is reduced or avoided.
Detailed description of the invention
Fig. 1 is the flow chart of traditional dpf regeneration monitoring method.
Fig. 2 is engine and its tail-gas after treatment apparatus connection schematic diagram.
Fig. 3 is the flow chart of the dpf regeneration prediction technique of one embodiment of the present of invention.
Fig. 4 is the flow chart of the dpf regeneration prediction technique of another embodiment of the invention.
Fig. 5 is engine particulate emission model schematic.
Fig. 6 is that engine operating condition statistical representation is intended to.
Specific embodiment
Below by embodiment, the invention will be further described, and purpose, which is only that, more fully understands research of the invention
The protection scope that content is not intended to limit the present invention.
The principle of dpf regeneration prediction technique of the invention are as follows: after upper primary dpf regeneration is completed, DPF internal particle object
When cumulant is reset to 0 or a certain default value, engine controller be based on the currently running operating condition of engine (revolving speed, torque,
Speed etc.) inquiry particulate emission model and while calculate the particulate matter accumulated in current DPF, what is added up under synchronous recording starts
Machine operating condition statistical form (revolving speed, torque, speed etc.).Generally, the operating condition operation of a period of time (such as 1 minute) has been added up
Data can concentrate the calculating for carrying out primary newly-increased particulate matter quantity, and in synchronized update DPF remainder particulate object value.
Embodiment 1:
Assuming that big variation does not occur for the operating condition of engine/vehicle, it can be distributed and be calculated based on current operating condition
Particulate matter cumulant reaches dpf regeneration limit value remaining time/mileage from current value out.
As shown in figure 3, the dpf regeneration prediction technique of the present embodiment includes the following steps:
Step 1: reading the Annual distribution ratio p in each section in present engine operating condition statistical form, the operating condition statistics
Laterally indicate the revolving speed of engine in table, longitudinal torque for indicating engine, the section by specific speed revolution value range and
Specific torque value range limits, and the Annual distribution ratio refers to specific speed revolution value range and specific torque value
Time used in range accounts for the ratio of entire engine on time.For example, being 700~800 (units: rpm in engine speed
Revolutions per minute) between, in section of the torque 0~50 between (unit: Nm ox rice), Annual distribution ratio is 2.23.In engine
Revolving speed is 800~900 (units: rpm revolutions per minute), and torque is in the section between 50~100 (units: Nm ox rice), the time point
Cloth ratio is 0.02.Engine operating condition statistical form is as shown in Figure 6.In the table of Fig. 6, engine speed 800 indicates that revolving speed exists
Between 700~800, revolving speed 900 indicates revolving speed between 800~900；The i.e. expression torque of torque 0 is between 0~50, torque
50 indicate torque between 50~100.Similarly, Fig. 5 is also such.
In addition, further including counting to obtain present engine operating condition statistical form by vehicle motor operating condition before step 1
Step.
Step 2: reading the particle emission value W that the section is corresponded in engine particulate emission model；Here, described to start
Machine particulate emission model first passes through statistics in advance and obtains, as shown in Figure 5.
Step 3: calculating DPF grain value average growth rateThe average growth rate is equal to each particle emission value and multiplies
With the sum of the Annual distribution ratio for corresponding to section, i.e.,
Step 4: obtaining DPF and reach the remainder particulate value Wr before regeneration.The remainder particulate value can be automatic by Vehicular system
It obtains.That is, engine controller, which is based on the currently running operating condition of engine (revolving speed, torque, speed etc.), inquires particle
Discharge model can calculate the grain value M for obtaining and accumulating in current DPF, and the largest particles value Mmax (reaches the grain value
With regard to starting regenerate) be Vehicular system known fixed value, the grain value of current DPF accumulation is subtracted by the largest particles value
Obtain remainder particulate value Wr, i.e. Wr=Wmax-M.
Step 5: calculating dpf regeneration remaining time under current workingIn addition, dpf regeneration is surplus under current working
Remaining mileage can be obtained by regeneration remaining time t and car speed.
Embodiment 2:
According to the various typical operating conditions of vehicle/mechanical equipment, can convert various operating statuses to accordingly
Engine operation condition statistical form can be calculated separately from particulate emission model in various different works according to each operating condition statistical form
Reach time required for dpf regeneration limit value/mileage when running under condition.The representative engine operating condition includes: urban traffic situation, height
Fast road conditions, comprehensive road condition etc., full-load run, idle running and comprehensive operating condition.
As shown in figure 4, the dpf regeneration prediction technique of the present embodiment includes the following steps:
Step 1: reading the Annual distribution ratio p in each section in representative engine operating condition statistical form, the operating condition statistics
Laterally indicate the revolving speed of engine in table, longitudinal torque for indicating engine, the section by specific speed revolution value range and
Specific torque value range limits, and the Annual distribution ratio refers to specific speed revolution value range and specific torque value
Time used in range accounts for the ratio of entire engine on time.For example, being 700~800 (units: rpm in engine speed
Revolutions per minute) between, in section of the torque 0~50 between (unit: Nm ox rice), Annual distribution ratio is 2.23.In engine
Revolving speed is 800~900 (units: rpm revolutions per minute), and torque is in the section between 50~100 (units: Nm ox rice), the time point
Cloth ratio is 0.02.Engine operating condition statistical form is as shown in Figure 6.In addition, further including by vehicle motor operating condition before step 1
Statistics obtains the step of representative engine operating condition statistical form.
Step 2: reading the particle emission value W that the section is corresponded in engine particulate emission model；Here, described to start
Machine particulate emission model first passes through statistics in advance and obtains, as shown in Figure 5.
Step 3: calculating DPF grain value average growth rateThe average growth rate is equal to each particle emission value and multiplies
With the sum of the Annual distribution ratio for corresponding to section, i.e.,
Step 4: obtaining DPF and reach the remainder particulate value Wr before regeneration.The remainder particulate value can be automatic by Vehicular system
It obtains.That is, engine controller, which is based on the currently running operating condition of engine (revolving speed, torque, speed etc.), inquires particle
Discharge model can calculate the grain value M for obtaining and accumulating in current DPF, and the largest particles value Mmax (reaches the grain value
With regard to starting regenerate) be Vehicular system known fixed value, the grain value of current DPF accumulation is subtracted by the largest particles value
Obtain remainder particulate value Wr, i.e. Wr=Wmax-M.
Step 5: calculating dpf regeneration remaining time under typical conditionIn addition, dpf regeneration is surplus under current working
Remaining mileage can be obtained by remaining time t and car speed.
As described above, dpf regeneration remaining time/mileage information that above-mentioned measuring method according to the present invention obtains can open up
User is now given, user can combine the work plan of itself, and the arranged rational time is regenerated.
Obviously, those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate this
Invention, and be not used as limitation of the invention, as long as in spirit of the invention, to embodiment described above
Variation, modification will all fall within the scope of claims of the present invention.
Claims (6)
1. a kind of diesel particulate trap regenerates prediction technique, which comprises the steps of:
Step 1: reading the Annual distribution ratio p in each section in engine operating condition statistical form, transverse direction in the operating condition statistical form
Indicate the revolving speed of engine, longitudinal torque for indicating engine, the section is turned round by specific speed revolution value range and specifically
Square numberical range limits, and the Annual distribution ratio refers to used in specific speed revolution value range and specific torque value range
Time account for the ratio of entire engine on time；
Step 2: reading the particle emission value W that the section is corresponded in engine particulate emission model；
Step 3: calculating diesel particulate trap DPF grain value average growth rateThe average growth rate is equal to each described
Particle emission value is multiplied by the sum of the Annual distribution ratio for corresponding to section, i.e.,
Step 4: obtaining DPF present granule value M, calculate the remainder particulate value Wr=Wmax-M before reaching regeneration；Wherein, Wmax is
The largest particles value that DPF allows；
Step 5: calculating dpf regeneration remaining time or mileage under the engine operating condition, the regeneration remaining time
2. the method according to claim 1, wherein the engine operating condition statistical form includes present engine work
Condition statistical form and representative engine operating condition statistical form, the engine operating condition include present engine operating condition and representative engine
Operating condition.
3. according to the method described in claim 2, it is characterized in that, the representative engine operating condition includes: urban traffic situation, high speed
Road conditions, comprehensive road condition etc., full-load run, idle running and comprehensive operating condition.
4. according to method described in claim 1, which is characterized in that further include being counted by vehicle motor operating condition before step 1
The step of obtaining engine operating condition statistical form.
5. the method according to claim 1, wherein the engine particulate emission model first passes through statistics in advance and obtains
?.
6. the method according to claim 1, wherein the regeneration remaining mileage is remaining by regeneration in step 5
Time t and car speed obtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508284.XA CN109630247A (en) | 2018-12-11 | 2018-12-11 | A kind of diesel particulate trap regeneration prediction technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508284.XA CN109630247A (en) | 2018-12-11 | 2018-12-11 | A kind of diesel particulate trap regeneration prediction technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109630247A true CN109630247A (en) | 2019-04-16 |
Family
ID=66072724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811508284.XA Pending CN109630247A (en) | 2018-12-11 | 2018-12-11 | A kind of diesel particulate trap regeneration prediction technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630247A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980791A (en) * | 2020-09-02 | 2020-11-24 | 潍柴动力股份有限公司 | Data processing method and system |
| CN113404576A (en) * | 2020-03-17 | 2021-09-17 | 联合汽车电子有限公司 | Service regeneration method and device of particle catcher and readable storage medium |
| CN113944536A (en) * | 2021-09-30 | 2022-01-18 | 三一汽车起重机械有限公司 | Early warning method and device for regeneration of particle trap |
| CN114033533A (en) * | 2021-11-08 | 2022-02-11 | 凯龙高科技股份有限公司 | DPF active regeneration period determination method and device, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2746550A1 (en) * | 2012-12-18 | 2014-06-25 | IVECO S.p.A. | System for managing the maintenance of a particulate filter of an internal combustion engine |
| JP2016166537A (en) * | 2015-03-09 | 2016-09-15 | ヤンマー株式会社 | Engine and work vehicle with the engine |
| CN106351720A (en) * | 2016-11-30 | 2017-01-25 | 安徽江淮汽车集团股份有限公司 | Method and system for determining carbon accumulation amount of diesel particle trapper |
| CN107489504A (en) * | 2016-06-13 | 2017-12-19 | 罗伯特·博世有限公司 | For planning the method and control device of the measure for exhaust after-treatment |
| CN108252780A (en) * | 2018-01-07 | 2018-07-06 | 吕刚 | The regenerative system and method for particulate filter in motor vehicles |
-
2018
- 2018-12-11 CN CN201811508284.XA patent/CN109630247A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2746550A1 (en) * | 2012-12-18 | 2014-06-25 | IVECO S.p.A. | System for managing the maintenance of a particulate filter of an internal combustion engine |
| JP2016166537A (en) * | 2015-03-09 | 2016-09-15 | ヤンマー株式会社 | Engine and work vehicle with the engine |
| CN107489504A (en) * | 2016-06-13 | 2017-12-19 | 罗伯特·博世有限公司 | For planning the method and control device of the measure for exhaust after-treatment |
| CN106351720A (en) * | 2016-11-30 | 2017-01-25 | 安徽江淮汽车集团股份有限公司 | Method and system for determining carbon accumulation amount of diesel particle trapper |
| CN108252780A (en) * | 2018-01-07 | 2018-07-06 | 吕刚 | The regenerative system and method for particulate filter in motor vehicles |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113404576A (en) * | 2020-03-17 | 2021-09-17 | 联合汽车电子有限公司 | Service regeneration method and device of particle catcher and readable storage medium |
| CN113404576B (en) * | 2020-03-17 | 2022-10-04 | 联合汽车电子有限公司 | Service regeneration method and device of particle catcher and readable storage medium |
| CN111980791A (en) * | 2020-09-02 | 2020-11-24 | 潍柴动力股份有限公司 | Data processing method and system |
| CN113944536A (en) * | 2021-09-30 | 2022-01-18 | 三一汽车起重机械有限公司 | Early warning method and device for regeneration of particle trap |
| CN114033533A (en) * | 2021-11-08 | 2022-02-11 | 凯龙高科技股份有限公司 | DPF active regeneration period determination method and device, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109630247A (en) | A kind of diesel particulate trap regeneration prediction technique | |
| US6910329B2 (en) | System for controlling particulate filter temperature | |
| CN102165152B (en) | Control of the regeneration of a particulate filter | |
| CN102003257B (en) | The control of diesel particulate filter regeneration duration | |
| CN103016118B (en) | A kind of controlling method and device preventing grain catcher recycled sinter | |
| CN104847455B (en) | Gasoline engine particulate filter regenerative system and regeneration method | |
| CN105971747B (en) | Manual regeneration method for DPF driver | |
| CN109252919A (en) | The method and system of particulate filter with bypass | |
| CN110869597B (en) | Method for operating an internal combustion engine of a motor vehicle and arrangement of a particle filter in an exhaust system of a motor vehicle | |
| CN104832258A (en) | Diesel particulate filter (DPF) carbon accumulation estimation method | |
| WO2020074271A1 (en) | Method and device for managing the temperature of an exhaust gas aftertreatment system of a pollutant-discharging motor vehicle | |
| CN107448261A (en) | A kind of method that particulate filter heating is reduced during regeneration event | |
| CN210127883U (en) | Diesel engine particle trap control system and vehicle | |
| CN112324545B (en) | DPF regeneration coupling control method | |
| CN105298601B (en) | Exhaust particulate catcher control method under vehicle idling state | |
| CN113565610B (en) | Method for judging working state of diesel vehicle particle catcher | |
| CN105298602A (en) | Particle trap real-time online updating regeneration control method | |
| CN112081644B (en) | Regeneration method and device of particle catcher | |
| CN107084022A (en) | System and method for particulate filter regeneration | |
| CN105339622A (en) | Method for timing of regeneration process | |
| CN114658520A (en) | Vehicle exhaust aftertreatment method, system, storage medium and electronic equipment | |
| CN109026288B (en) | A method of the discharge of Light-duty Vehicle particulate matter quantity is reduced based on vehicle behavior | |
| CN207261081U (en) | The on-line automatic warning system of grain catcher failure | |
| CN114542307B (en) | DPF parking regeneration control method and system for hybrid electric vehicle | |
| CN206419088U (en) | A kind of management system of particulate filter regeneration activation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
|
| RJ01 | Rejection of invention patent application after publication |