CN204041178U - A kind of diesel-oil vehicle SCR exhaust aftertreatment control gear - Google Patents
A kind of diesel-oil vehicle SCR exhaust aftertreatment control gear Download PDFInfo
- Publication number
- CN204041178U CN204041178U CN201420448482.2U CN201420448482U CN204041178U CN 204041178 U CN204041178 U CN 204041178U CN 201420448482 U CN201420448482 U CN 201420448482U CN 204041178 U CN204041178 U CN 204041178U
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- circuit
- interface
- diesel
- signal acquisition
- control gear
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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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- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear; comprise controller; this controller comprises MCU; and the power circuit, drive circuit, communication interface, analogue signal acquisition circuit, digital signal acquiring circuit and the circuit protection module that are connected with MCU respectively; described power circuit is connected with analogue signal acquisition circuit, and described circuit protection module is connected with power circuit, drive circuit, communication interface, analogue signal acquisition circuit, digital signal acquiring circuit respectively.Compared with prior art, the utility model have reliable performance, compact structure, volume little, be convenient to the advantages such as installation and maintenance.
Description
Technical field
The utility model relates to a kind of diesel-oil vehicle control gear, especially relates to a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear.
Background technique
Diesel emission problem receives publicity day by day, and European and American countries proposes harsh emission standard one after another.Compared with petrol engine, much less is wanted in the discharge of diesel engine CO and HC, NOx and petrol engine at the same order of magnitude, and the discharge of PM particulate larger than petrol engine tens times even more, therefore, reduce the emphasis that NOx and PM Particulate Emission is Exhaust Control for Diesel Engine.China's haze weather takes place frequently, air quality is deteriorated, and China is stepping up to implement state IV standards Abgasgesetz.SCR is the main flow route of diesel engine vent gas reprocessing in the world at present, can reach diesel engine state IV standards.Diesel SCR exhaust aftertreatment technology will be the main technological route that Science in Future in China improves diesel emission.
Controller and the reprocessing ejecting system of existing SCR aftertreatment system integrate, and when ejecting system fault or injection controller fault, whole ejecting system must all be changed, and maintenance cost is very high, brings constant very greatly to use; Separately have after-treatment system to adopt ejecting system and controller point development scheme, but controller function is comprehensive, volume is comparatively large, unstable properties, has many constant in installation, use, maintenance.
Model utility content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and the diesel-oil vehicle SCR exhaust aftertreatment control gear that a kind of reliable performance, compact structure, volume are little, be convenient to installation and maintenance is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of diesel-oil vehicle SCR exhaust aftertreatment control gear; it is characterized in that; comprise controller; this controller comprises MCU; and the power circuit, drive circuit, communication interface, analogue signal acquisition circuit, digital signal acquiring circuit and the circuit protection module that are connected with MCU respectively; described power circuit is connected with analogue signal acquisition circuit, and described circuit protection module is connected with power circuit, drive circuit, communication interface, analogue signal acquisition circuit, digital signal acquiring circuit respectively.
Described MCU is 16 single-chip microcomputer 9S12XDP512 of Freescale.
Described drive circuit comprise add blue tank heat driven interface, the blue heat driven interface of spray for subsequent use, MIL lamp drive interface, trouble light to drive interface, first to add thermorelay and drive interface, second to add thermorelay to drive interface, the 3rd to add thermorelay to drive interface, the 4th to add thermorelay to drive interface and slender acanthopanax thermorelay to drive interface.
Described communication interface is CAN interface, comprises car load communication interface and demarcates diagnose interface.
Described analogue signal acquisition circuit comprises liquid level signal collecting unit, adds blue temperature collecting cell, catalyst inlet temperature collecting cell, catalyst exit temperature collecting unit, compressed air pressure collecting unit, the first resistance wire voltage signal acquisition unit, the second resistance wire voltage signal acquisition unit, the 3rd resistance wire voltage signal acquisition unit, the 4th resistance wire voltage signal acquisition unit, the 5th resistance wire voltage signal acquisition unit and stand-by set of dies analog signal collecting unit.
Described digital signal acquiring circuit comprises key switch signal interface, the first backup circuit breaker signaling interface, the second backup circuit breaker signaling interface and the 3rd backup circuit breaker signaling interface.
This device also comprises the housing for mount controller.
Described housing comprises upper cover plate, lower cover plate, connector assembly and bolt, described connector assembly is penetrated upper cover plate and is fixed by bolt and upper cover plate, described controller is placed on after in upper cover plate and is fixedly connected with connector assembly by scolding tin welding manner, and described upper cover plate and lower cover plate are bolted.
Described trouble light drives interface for connecting fault indicating lamp, and this fault indicating lamp is LED or incandescent lamp.
Compared with prior art, the utility model has the following advantages:
1, complete function, using scope are extensively, compatible different automobile types and motor;
2, compact structure, volume little, lightweight, install convenient;
3, can be real-time by CAN and Engine ECU communication, obtain engine operating state data;
4, control accuracy is high, temperature signal before and after accurate acquisition catalyst converter, adds the signals such as blue liquid level;
5, add oil blackeite to freeze existing water mode of heating and have Electric heating again, ensure to add that blue impact of can not freezing uses in winter;
6, fault indicating lamp compatible with LED lamp and incandescent lamp two kinds;
7, reliable performance: adopt modular design thinking, take into full account the short circuit of each hardware module, overload protection, there is hardware intelligent protection function; And each drive singal of real-time diagnosis, output signal.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of controller of the present invention;
Fig. 2 is the structural representation of shell of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
As shown in Figure 1; a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear; comprise controller; this controller comprises MCU41; and the power circuit 42 be connected with MCU41 respectively, drive circuit 43, communication interface 44, analogue signal acquisition circuit 45, digital signal acquiring circuit 46 and circuit protection module 47; described power circuit 42 is connected with analogue signal acquisition circuit 45, and described circuit protection module 47 is connected with power circuit 42, drive circuit 43, communication interface 44, analogue signal acquisition circuit 45, digital signal acquiring circuit 46 respectively.
Described MCU41 is 16 single-chip microcomputer 9S12XDP512 of Freescale, Flash 512K on sheet, and RAM 32K on sheet, highest frequency can arrive 80M.
Power circuit 42 provides 5V power supply to MCU41 and other modules, provides the reference of analogue signal acquisition circuit 45, and provides 5V power supply to external sensor.
Described drive circuit 43 comprise add blue tank heat driven interface, the blue heat driven interface of spray for subsequent use, MIL lamp drive interface, trouble light to drive interface, first to add thermorelay and drive interface, second to add thermorelay to drive interface, the 3rd to add thermorelay to drive interface, the 4th to add thermorelay to drive interface and slender acanthopanax thermorelay to drive interface.Described trouble light drives interface for connecting fault indicating lamp, and this fault indicating lamp is LED or incandescent lamp.All driving interfaces have overcurrent protection, overheat protector, power supply and GND short-circuit protection, and have short circuit, open circuit diagnosis, while protect IC, are convenient to investigate fault.
Described communication interface 44 comprises a CAN interface 441 and the 2nd CAN interface 442, and according to J1939 Protocol Design, a CAN interface 441 is for the car load communication of diesel engine controller, jet pump; 2nd CAN interface 442 is monitorings, demarcates and diagnostics interface, and all communication interfaces have power supply and GND short-circuit protection.
Described analogue signal acquisition circuit 45 comprises liquid level signal collecting unit, adds blue temperature collecting cell, catalyst inlet temperature collecting cell, catalyst exit temperature collecting unit, compressed air pressure collecting unit, the first resistance wire voltage signal acquisition unit, the second resistance wire voltage signal acquisition unit, the 3rd resistance wire voltage signal acquisition unit, the 4th resistance wire voltage signal acquisition unit, the 5th resistance wire voltage signal acquisition unit and stand-by set of dies analog signal collecting unit.
Described digital signal acquiring circuit 46 comprises key switch signal interface, the first backup circuit breaker signaling interface, the second backup circuit breaker signaling interface and the 3rd backup circuit breaker signaling interface.
Circuit protection module 47 takes into full account the complex environment in vehicle operating, has reverse power connection, shock resistance protection, overvoltage protection, fast cut back, short-circuit protection.
As shown in Figure 2, this device also comprises the housing for mount controller.Described housing comprises upper cover plate 1, lower cover plate, connector assembly 2 and bolt 3, described connector assembly 2 is penetrated upper cover plate 1 and is fixed by bolt 3 and upper cover plate, described controller is placed on after in upper cover plate and is fixedly connected with connector assembly by scolding tin welding manner, and described upper cover plate and lower cover plate are bolted.
Upper and lower cover plates selects PA6+GF15 material, and have anti-fire-retardant, lightweight, the anti-feature such as to fall, whole controller size only has 203*106*49mm (the wide * of long * is high), weight 0.295kg.
Claims (9)
1. a diesel-oil vehicle SCR exhaust aftertreatment control gear; it is characterized in that; comprise controller; this controller comprises MCU; and the power circuit, drive circuit, communication interface, analogue signal acquisition circuit, digital signal acquiring circuit and the circuit protection module that are connected with MCU respectively; described power circuit is connected with analogue signal acquisition circuit, and described circuit protection module is connected with power circuit, drive circuit, communication interface, analogue signal acquisition circuit, digital signal acquiring circuit respectively.
2. a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear according to claim 1, is characterized in that, described MCU is 16 single-chip microcomputer 9S12XDP512 of Freescale.
3. a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear according to claim 1, it is characterized in that, described drive circuit comprise add blue tank heat driven interface, the blue heat driven interface of spray for subsequent use, MIL lamp drive interface, trouble light to drive interface, first to add thermorelay and drive interface, second to add thermorelay to drive interface, the 3rd to add thermorelay to drive interface, the 4th to add thermorelay to drive interface and slender acanthopanax thermorelay to drive interface.
4. a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear according to claim 1, it is characterized in that, described communication interface is CAN interface, comprises car load communication interface and demarcates diagnose interface.
5. a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear according to claim 1, it is characterized in that, described analogue signal acquisition circuit comprises liquid level signal collecting unit, add blue temperature collecting cell, catalyst inlet temperature collecting cell, catalyst exit temperature collecting unit, compressed air pressure collecting unit, first resistance wire voltage signal acquisition unit, second resistance wire voltage signal acquisition unit, 3rd resistance wire voltage signal acquisition unit, 4th resistance wire voltage signal acquisition unit, 5th resistance wire voltage signal acquisition unit and stand-by set of dies analog signal collecting unit.
6. a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear according to claim 1, it is characterized in that, described digital signal acquiring circuit comprises key switch signal interface, the first backup circuit breaker signaling interface, the second backup circuit breaker signaling interface and the 3rd backup circuit breaker signaling interface.
7. a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear according to claim 1, it is characterized in that, this device also comprises the housing for mount controller.
8. a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear according to claim 7, it is characterized in that, described housing comprises upper cover plate, lower cover plate, connector assembly and bolt, described connector assembly is penetrated upper cover plate and is fixed by bolt and upper cover plate, described controller is placed on after in upper cover plate and is fixedly connected with connector assembly by scolding tin welding manner, and described upper cover plate and lower cover plate are bolted.
9. a kind of diesel-oil vehicle SCR exhaust aftertreatment control gear according to claim 3, is characterized in that, described trouble light drives interface for connecting fault indicating lamp, and this fault indicating lamp is LED or incandescent lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420448482.2U CN204041178U (en) | 2014-08-08 | 2014-08-08 | A kind of diesel-oil vehicle SCR exhaust aftertreatment control gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420448482.2U CN204041178U (en) | 2014-08-08 | 2014-08-08 | A kind of diesel-oil vehicle SCR exhaust aftertreatment control gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041178U true CN204041178U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420448482.2U Expired - Fee Related CN204041178U (en) | 2014-08-08 | 2014-08-08 | A kind of diesel-oil vehicle SCR exhaust aftertreatment control gear |
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| CN (1) | CN204041178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298603A (en) * | 2015-12-10 | 2016-02-03 | 潍柴动力股份有限公司 | SCR aftertreatment heating system and control method thereof |
-
2014
- 2014-08-08 CN CN201420448482.2U patent/CN204041178U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298603A (en) * | 2015-12-10 | 2016-02-03 | 潍柴动力股份有限公司 | SCR aftertreatment heating system and control method thereof |
| CN105298603B (en) * | 2015-12-10 | 2018-03-13 | 潍柴动力股份有限公司 | A kind of SCR post processing heating systems and its control method |
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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: 20141224 Termination date: 20180808 |
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| CF01 | Termination of patent right due to non-payment of annual fee |