CN201687561U - Reagent display device of SCR after treatment system - Google Patents
Reagent display device of SCR after treatment system Download PDFInfo
- Publication number
- CN201687561U CN201687561U CN2010200470076U CN201020047007U CN201687561U CN 201687561 U CN201687561 U CN 201687561U CN 2010200470076 U CN2010200470076 U CN 2010200470076U CN 201020047007 U CN201020047007 U CN 201020047007U CN 201687561 U CN201687561 U CN 201687561U
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- reactant
- display modular
- reagent
- treatment system
- scr
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model provides a reagent display device of an SCR after treatment system. The device comprises a processing module and a display module, wherein the processing module is used for being in connection with a reagent sensor that obtains the information about the remaining quantity of the reagent, the display module is connected with the processing module and used for displaying the information about the remaining quantity of the reagent. By displaying the information about the remaining quantity of the reagent on the display module, the reagent display device of the SCR after treatment system solves the problem that the consumption level of the reagent in the SCR after treatment system can not be displayed on an instrument in the prior art, conforms to the regulations about the reagent and displayed contents in the OBD laws and regulations HJ437, and realizes real-time display and monitoring on the consumption situation of the reagent in the treatment system after exhaust and filled with consumption type reagent.
Description
Technical field
The utility model embodiment relates to the onboard instruments Display Technique, particularly a kind of reactant display unit of SCR after-treatment system.
Background technique
Along with the development of society and the concern of environmental pollution problem, people have strengthened the dynamics to environmental protection.And the effulent of Motor Vehicle is the major pollutants in the atmosphere, and therefore at the effulent of Motor Vehicle, people adopt various method means to eliminate the harmful matter that it contains.For example, diesel engine adopts selective catalytic reduction (SelectiveCatalytic Reduction in order to satisfy state IV emission request at present; Be called for short: SCR) after-treatment system is handled the harmful matter in the engine emission, nitrogen oxide in the waste gas is purified, to reduce the influence of effulent to atmosphere.This SCR after-treatment system has adopted the urea reaction agent, its general principles can for, storage cabinet with stored urea water, the urea water injection that when actual motion this storage cabinet is provided is in the exhaust passage of motor, produce ammonia by utilizing waste gas heat that urea is added water decomposition,, as the nitrogen oxide reaction in reducing agent and the discharging nitrogen oxide is reduced and purification by ammonia.
In realizing process of the present utility model, the inventor finds that there are the following problems at least in the prior art: in the present SCR after-treatment system, still there is not to show the device of residual reactant amount, the consumption degree of reactant can not show in instrument, thereby can not make things convenient for the driver timely and effectively residual reactant amount to be monitored.
The model utility content
The utility model embodiment's purpose provides a kind of reactant display unit of SCR after-treatment system, the problem that shows in instrument be can not obtain in order to the reactant consumption that solves SCR after-treatment system in the prior art, real-time demonstration and monitoring realized the reactant consumption.
The utility model embodiment provides a kind of reactant display unit of SCR after-treatment system, comprising: puocessing module and display modular;
Described puocessing module is used for being connected with reactant sensor, obtains residual reactant amount information by described reactant sensor;
Described display modular is connected with described puocessing module, is used for described residual reactant amount information is shown.
On this basis, described puocessing module can comprise engine controller and the signal repeater that is connected by the CAN bus; Described engine controller is connected with described reactant sensor, and described signal repeater is connected with described display modular.
Described signal repeater can also be used for being connected with fuel oil sensor, obtains fuel oil reserves information, and according to described fuel oil reserves information and residual reactant amount information to described display modular output alarm level signal.
Described display modular comprises alarm unit, is used for carrying out alarm indication according to described alarm level signal.Described display modular also comprises the indicating fault unit, is used for carrying out fault according to described alarm level signal and shows.Described display modular also comprises the assembling set that is used to install described display modular.
The reactant display unit of the utility model embodiment's SCR after-treatment system, by residual reactant amount information is shown at display modular, solve the reactant consumption of SCR after-treatment system in the prior art and can not obtain the problem that shows in instrument, and meet among the OBD rules HJ437 about reactant and content displayed regulation, realized real-time demonstration and monitoring that the reactant in the exhaust after treatment system that the consumption-type reactant is housed is consumed.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the reactant display unit embodiment's of the utility model SCR after-treatment system an application system structural drawing;
Fig. 2 is the perspective view of the display modular among Fig. 1;
Fig. 3 is the fractionation structural representation of the display modular among Fig. 1;
Fig. 4 is the show state schematic representation of the display modular among Fig. 1;
Fig. 5 is the installment state schematic representation of the display modular among Fig. 1.
Description of reference numerals:
The 11-display modular; The 12-signal repeater; The 13-engine controller;
The 14-CAN bus; The 15-reactant sensor; The 16-fuel oil sensor;
The transparent plastic of 21-; The 22-shell; The 23-display screen;
The 24-PCB plate; The 25-assembling set; The 26-signaling line;
The 27-instrument panel.
Embodiment
For the purpose, technological scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment's main technical schemes is, by the puocessing module that is connected with reactant sensor, obtain the residual capacity information of reactant according to the collection value of reactant sensor, and this residual capacity information shown at display modular, thereby realize real-time monitoring to the reactant consumption of SCR after-treatment system.Below by the drawings and specific embodiments, the technical solution of the utility model is described in further detail.
Fig. 1 is the reactant display unit embodiment's of the utility model SCR after-treatment system an application system structural drawing, as shown in Figure 1, the reactant display unit of present embodiment can comprise display modular 11 and puocessing module, wherein, puocessing module can comprise signal repeater 12 and engine controller (ECU) 13.
Concrete, signal repeater 12 can be connected by CAN bus 14 with engine controller 13, engine controller 13 can be connected with reactant sensor 15, be used for obtaining the residual reactant amount of SCR after-treatment system according to the collection value of reactant sensor 15, this residual capacity can be the percentage form, promptly remains percentage amounts.Reactant sensor 15 can be arranged in the storage cabinet of reactant urea, is used for the residual capacity of real-time monitoring reaction agent urea.Engine controller 13 can pass through CAN bus 14, and its reactant that obtains residue percentage amounts information is sent to signal repeater 12.Signal repeater 12 can be connected with display modular 11, reactant is remained percentage amounts information show at display modular 11, thereby realized real-time monitoring to the reactant consumption of SCR after-treatment system.
Further, signal repeater 12 can also be connected with fuel oil sensor 16, is used to obtain fuel oil reserves information.This fuel oil sensor 16 can be arranged in the fuel tank of motor, monitors the fuel oil reserves in real time.Signal repeater 12 can be according to its reactant that obtains from engine controller 13 residue percentage amounts information and the fuel oil reserves information that obtains from fuel oil sensor 16, judge whether residual reactant amount is enough, thereby whether decision needs to report to the police, to the corresponding alarm level signal of display modular 11 outputs, for example, when needing to report to the police, can export the 5V level signal, when not needing to report to the police, can export the 0V level signal.In addition, signal repeater 12 can also provide power supply signal and ground signalling etc. for display modular 11.
Further, in the specific implementation, display modular 11 can be a stand alone display, can be referring to Fig. 2 and Fig. 3, and Fig. 2 is the perspective view of the display modular among Fig. 1, Fig. 3 is the fractionation structural representation of the display modular among Fig. 1.This display modular mainly can comprise transparent plastic 21, shell 22, display screen 23, pcb board 24 and assembling set 25.Wherein, transparent plastic 21 can play effects such as water proof and dust proof, makes this display device can meet the regulation of front IP54, back side IP20 standard; This transparent plastic 21 can fix on shell 22.Display screen 23 can be liquid crystal display panel, and it can be connected to pcb board 24 by many signal line 26, and the circuit on this pcb board 24 can be handled the signal that receives from signal repeater 12, and finally transfers to display screen 23 and show.Pcb board 24 can be connected to signal repeater 12 by many signal line (not shown), and can obtain for example power supply signal, ground signalling, warning light signal, tutorial light signal and pwm signal etc. from signal repeater 12.
This display modular 11 can comprise alarm unit and indicating fault unit, can be referring to Fig. 4, and Fig. 4 is the show state schematic representation of the display modular among Fig. 1.This figure has illustrated shown content on display screen 23.Wherein, the numerical value unit that is positioned at display screen 23 right sides can show reactant residue percentage amounts.Two tutorial light in left side promptly can correspond respectively to alarm unit and indicating fault unit.Alarm unit can carry out alarm indication according to the alarm level signal that signal repeater 12 sends; The indicating fault unit can carry out fault and show according to the alarm level signal that signal repeater 12 sends.And being handled and control the function that corresponding tutorial light shows, to finish by the corresponding unit on the pcb board 24 the alarm level signal that signal repeater 12 sends.
In addition, this display modular 11 can also be installed in easily by the assembling set on it 25 on the parts such as fascia.For example, as shown in Figure 5, Fig. 5 is the installment state schematic representation of the display modular among Fig. 1.Display modular 11 is embedded on the instrument panel 27 by assembling set 25, can be installed in the driver within sweep of the eye.And as we can see from the figure, the size of this display modular 11 is less, and in realization, it is 47mm that its display screen 23 can be provided with length, and width is 21mm; The thickness of shell 22 can be set to 17mm; The length of assembling set 25 can be set to 33mm, and width can be 30mm.Therefore, this display modular 11 is during as a stand alone display, the setting of size that it is small and exquisite and assembling set 25, make it can be embedded in easily on the parts such as fascia, it can be installed in the position near fuel level indicator, can be in the residual capacity of driver's the reactant of driver within sweep of the eye storage tank internal reaction agent, satisfied and recommended among the rules HJ437 and relevant regulations that the reactant to releasing system of regulation shows.
Describe the working procedure of reactant display unit of the SCR after-treatment system of present embodiment below again in detail:
In addition, signal repeater 12 can also obtain fuel oil reserves information from fuel oil sensor 16, and comprehensively its reactant that receives remains percentage amounts information, carry out to judge: when one of following situation appears in residual reactant amount, should notify display modular 11 to report to the police: a) residual reactant amount is lower than 10% capacity of storage tank or is lower than that manufacturing enterprise selects is higher than 10% percentage; B) distance that distance that residual reactant amount can be travelled can be travelled less than residual fuel in the fuel tank is thought by manufacturing enterprise.If satisfy one of above-mentioned two conditions, then signal repeater 12 can the output alarm level signal to display modular 11.
Display modular 11 is behind the pwm signal and alarm level signal that receive signal repeater 12 transmissions, can on display screen 23, show the percentage of residual reactant amount according to this pwm signal, and the alarm level signal is converted into the light on and off of the corresponding tutorial light on the display screen 23.For example, can set when residual reactant amount is higher than 10%, signal repeater 12 can the output alarm level signal, and directs display module 11 its alarm unit tutorial light of control go out, and fault indicating lamp is bright, and the expression residual reactant amount is enough, and system works is normal; Wherein, fault indicating lamp is just represented to break down when going out, and represents this system's proper functioning when bright; When residual reactant amount is lower than 10% and greater than 5% the time, signal repeater 12 can the output alarm level signal, and directs display module 11 its alarm unit tutorial light of control and fault indicating lamp are all bright, and the expression system works is normal, but the residual reactant amount deficiency needs to add; When residual reactant amount was lower than 5%, signal repeater 12 can the output alarm level signal, and directs display module 11 its alarm unit tutorial light of control are bright, and fault indicating lamp is gone out, expression residual reactant amount wretched insufficiency, and system is cisco unity malfunction.In addition, this system signal repeater 12 also may occur and not receive the message that engine controller 13 sends, perhaps, residual reactant amount information in the PGN65110 message of the relevant urea reaction agent of the CAN bus that it receives is undesired (for example, be 0% or 100%), at this moment, signal repeater 12 also can the output alarm level signal, directs display module 11 its fault indicating lamp of control are gone out, and there is fault in the expression system.Above-mentioned fault indicating lamp can be yellow.In concrete the enforcement, can change according to actual needs about the control law of the relevant tutorial light of display modular 11.
The reactant display unit of the SCR after-treatment system of present embodiment, by residual reactant amount information is shown at display modular, solve the reactant consumption of SCR after-treatment system in the prior art and can not obtain the problem that shows in instrument, and meet among the OBD rules HJ437 about reactant and content displayed regulation, realized real-time demonstration and monitoring that the reactant in the exhaust after treatment system that the consumption-type reactant is housed is consumed.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (6)
1. the reactant display unit of a SCR after-treatment system is characterized in that, comprises puocessing module and display modular;
Described puocessing module is used for being connected with reactant sensor, obtains residual reactant amount information by described reactant sensor;
Described display modular is connected with described puocessing module, is used for described residual reactant amount information is shown.
2. device according to claim 1 is characterized in that, described puocessing module comprises engine controller and the signal repeater that is connected by the CAN bus; Described engine controller is connected with described reactant sensor, and described signal repeater is connected with described display modular.
3. device according to claim 2, it is characterized in that, described signal repeater also is used for being connected with fuel oil sensor, obtains fuel oil reserves information, and according to described fuel oil reserves information and residual reactant amount information to described display modular output alarm level signal.
4. device according to claim 3 is characterized in that described display modular comprises alarm unit, is used for carrying out alarm indication according to described alarm level signal.
5. device according to claim 3 is characterized in that described display modular also comprises the indicating fault unit, is used for carrying out fault according to described alarm level signal and shows.
6. device according to claim 1 is characterized in that described display modular also comprises the assembling set that is used to install described display modular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200470076U CN201687561U (en) | 2010-01-15 | 2010-01-15 | Reagent display device of SCR after treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200470076U CN201687561U (en) | 2010-01-15 | 2010-01-15 | Reagent display device of SCR after treatment system |
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| Publication Number | Publication Date |
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| CN201687561U true CN201687561U (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010200470076U Expired - Fee Related CN201687561U (en) | 2010-01-15 | 2010-01-15 | Reagent display device of SCR after treatment system |
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| CN (1) | CN201687561U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793186A (en) * | 2010-03-11 | 2010-08-04 | 北汽福田汽车股份有限公司 | Reactant alarm control device and method for an SCR system |
| CN103375234A (en) * | 2012-04-19 | 2013-10-30 | 罗伯特·博世有限公司 | Method for diagnosing a metering valve and device for carrying out the method |
| CN104074581A (en) * | 2014-06-11 | 2014-10-01 | 安徽华菱汽车有限公司 | Error-reporting method, device and system |
-
2010
- 2010-01-15 CN CN2010200470076U patent/CN201687561U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793186A (en) * | 2010-03-11 | 2010-08-04 | 北汽福田汽车股份有限公司 | Reactant alarm control device and method for an SCR system |
| CN103375234A (en) * | 2012-04-19 | 2013-10-30 | 罗伯特·博世有限公司 | Method for diagnosing a metering valve and device for carrying out the method |
| CN103375234B (en) * | 2012-04-19 | 2017-06-20 | 罗伯特·博世有限公司 | Method and apparatus for carrying out the process for diagnosing metering valve |
| CN104074581A (en) * | 2014-06-11 | 2014-10-01 | 安徽华菱汽车有限公司 | Error-reporting method, device and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20170115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |