CN103527294A - Postprocessing system control method, postprocessing electronic control unit and controller - Google Patents
Postprocessing system control method, postprocessing electronic control unit and controller Download PDFInfo
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- CN103527294A CN103527294A CN201310487410.9A CN201310487410A CN103527294A CN 103527294 A CN103527294 A CN 103527294A CN 201310487410 A CN201310487410 A CN 201310487410A CN 103527294 A CN103527294 A CN 103527294A
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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 invention discloses a postprocessing system control method, a postprocessing electronic control unit and a controller. The postprocessing system control method includes the steps of enabling the controller to receive a failure indication code sent by the postprocessing electronic control unit, enabling the controller to judge whether the received failure indication codes are equal to one of a plurality of pre-stored postprocessing system failure indication codes or not, enabling the different pre-stored failure indication codes to correspond to different alarm operations, recording the failure indication codes if the received failure indication codes are equal to one of the multiple pre-stored postprocessing system failure indication codes, and executing the corresponding alarm operations according to the failure indication codes. Rapid postprocessing system failure location is achieved, and the postprocessing system failure overhaul efficiency is improved.
Description
Technical field
The present invention relates to automatic control technology field, particularly relate to a kind of controlling method, reprocessing ECU (Electrical Control Unit) and controller of after-treatment system.
Background technique
Diesel engine is as a kind of dynamic power machine, for outstanding contribution has been made in social development, but also causes the pollution of environment simultaneously.Along with the increasingly stringent of national legislation, also more and more higher to diesel emission requirement, it is more and more difficult that simple dependence raising engine technology is realized emission compliance, introduced in this case SCR(selective catalytic reduction technology) after-treatment system.SCR after-treatment system basic functional principle is as follows:
Diesel exhaust gas enters in outlet pipe from booster turbine flows out, by the urea-spray unit being arranged on outlet pipe, quantitative aqueous solution of urea is sprayed in outlet pipe with vaporific form simultaneously, urea droplets issues unboiled water solution and pyrolytic reaction in high-temp waste gas effect, generates needed reducing agent ammonia (NH
3), ammonia (NH
3) under the effect of catalyzer, the main harmful components nitrogen oxide (NOx) in diesel exhaust gas is optionally reduced to nitrogen (N
2).Nitrogen is nontoxic, and environment is not polluted.
Introduce SCR after-treatment system, can reduce the pollution of diesel exhaust gas to environment, meanwhile, introduce independently reprocessing ECU (Electrical Control Unit) DCU, be responsible for control and the fault diagnosis thereof of after-treatment system.When after-treatment system breaks down, motor discharge may exceed standard, for this situation OBD rules (diagnostic system on car, On-Board Diagnostic) require when after-treatment system breaks down, need DCU according to the order of severity of fault, to carry out the alarm operation of bright light or torque limiting, to remind driver that fault has occurred vehicle.
At present, reprocessing fault is lighted car load instrument panel OBD lamp idiographic flow after occurring is illustrated in fig. 1 shown below, and after reprocessing fault occurs, the idiographic flow of torque limiting (limiting engine moment of torsion) is illustrated in fig. 2 shown below.Its concrete method is: when after-treatment system produces fault, through DCU judgement, if fault needs, bright light DCU is set to the bit7 of DM1DCUByte1 1 in DM1DCU message, bit8 is set to 0, indication ECU(Electronic Control Unit, electronic control unit) light OBD lamp, ECU receives and when idling, starts limit after the message request of TSC1 torque limiting and turn round operation.When after-treatment system produces fault, through DCU judgement, if fault needs starting torque restriction, now DCU sends torque limited request by TSC1 message to ECU, and ECU receives the limit of TSC1 message and turns round after request, starts limit and turns round operation.
Summary of the invention
Inventor finds through research, fault management internal memory (DSM) the nonrecognition TSC1 message of ECU, so, fault management internal memory (DSM) does not record the fault of after-treatment system, and in practical operation, when more than after-treatment system breaks down, need to carry out limit and turn round operation, during such as engine failure, also need to carry out limit and turn round operation, so, if breaking down, after-treatment system cause limit to turn round operation generation, and operator are when checking that fault management internal memory (DSM) finds that motor does not break down, operator cannot be confirmed to be the fault of after-treatment system the very first time, cause the time of fault recognition longer, overhaul efficiency is lower.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of controlling method, reprocessing ECU (Electrical Control Unit) and controller of after-treatment system, longer to solve the after-treatment system fault recognition time, the technical problem that overhaul efficiency is lower, the invention provides technological scheme as follows:
A controlling method for after-treatment system, comprising:
Controller receives the indicating fault code that reprocessing ECU (Electrical Control Unit) sends;
Whether the indicating fault code that controller judges described reception equates with in a plurality of after-treatment system indicating fault codes that prestore one, the different alarm operation of correspondence of the different faults indication code prestoring;
If the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, record trouble is indicated code, and carries out corresponding alarm operation according to described indicating fault code.
The present invention also provides a kind of controller, comprising:
Receiving module, the indicating fault code sending for receiving reprocessing ECU (Electrical Control Unit);
Whether judge module, equate the different alarm operation of correspondence of the different faults indication code prestoring with of a plurality of after-treatment system indicating fault codes that prestore for the indicating fault code that judges described reception;
Logging modle, while equating for the indicating fault code receiving and a plurality of after-treatment system indicating fault codes that prestore one, record trouble indication code;
Executive Module, for carrying out corresponding alarm operation according to described indicating fault code.
The present invention also provides a kind of controlling method of after-treatment system, comprising:
Reprocessing ECU (Electrical Control Unit) monitoring after-treatment system running state;
When reprocessing ECU (Electrical Control Unit) monitoring after-treatment system breaks down, to controller, send indicating fault code;
So that controller receives after failure code, whether the indicating fault code that judges described reception equates with in a plurality of after-treatment system indicating fault codes that prestore one, the different alarm operation of correspondence of the different faults indication code prestoring; If the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, record trouble is indicated code, and carries out corresponding alarm operation according to described indicating fault code.
The present invention also provides a kind of reprocessing ECU (Electrical Control Unit), it is characterized in that, comprising:
Monitoring modular, for monitoring after-treatment system running state;
Transmitting module, while breaking down for reprocessing ECU (Electrical Control Unit) monitoring after-treatment system, to controller, send indicating fault code, so that controller receives after failure code, whether the indicating fault code that judges described reception equates with in a plurality of after-treatment system indicating fault codes that prestore one, the different alarm operation of correspondence of the different faults indication code prestoring; If the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, record trouble is indicated code, and according to described indicating fault code, carries out corresponding alarm and grasp.
The present invention also provides a kind of control system of after-treatment system, and described system comprises:
As above-mentioned reprocessing ECU (Electrical Control Unit) as described in arbitrary, as above-mentioned controller as described in arbitrary.
The technological scheme being provided from the above embodiment of the present invention, indicating fault code has prestored in controller, after receiving the indicating fault code of reprocessing ECU (Electrical Control Unit) transmission, the indicating fault code of reception and the indicating fault code prestoring are compared, if the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, illustrate that fault has occurred after-treatment system, according to indicating fault code, can determine the alarm operation that need to carry out, and then carry out corresponding operation.According to technological scheme of the present invention, indicating fault code is pre-stored in fault management internal memory (DSM), when defining fault generation, can carry out fault recording according to indicating fault code, facilitate staff to check, and then the localization of faults in time, and carry out the maintenance of fault point, improve after-treatment system troubleshooting efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiments that record in the present invention, for those of ordinary skills, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is in prior art, and reprocessing fault is lighted the idiographic flow of OBD lamp after occurring;
Fig. 2 is in prior art, the idiographic flow of torque limiting after reprocessing fault occurs;
Fig. 3 is the controlling method embodiment's 1 of a kind of after-treatment system provided by the invention flow chart;
Fig. 4 is the controlling method embodiment's 2 of a kind of after-treatment system provided by the invention flow chart;
Fig. 5 is the controlling method embodiment's 3 of a kind of after-treatment system provided by the invention flow chart;
Fig. 6 is a kind of signal diagram corresponding to technical solution of the present invention under practical application scene;
Fig. 7 is the structural representation of a kind of controller provided by the invention;
Fig. 8 is the structural representation of a kind of reprocessing ECU (Electrical Control Unit) provided by the invention;
Fig. 9 is the structural representation of the control system of a kind of after-treatment system provided by the invention.
Embodiment
In existing after-treatment system fault treatment, when breaking down, after-treatment system need to carry out bright light and limit is turned round after operation, attendant is by INCA(engine calibration software) when connecting ECU and checking that fault management internal memory (DSM) is determined concrete fault, because this fault does not report an error in the Fault Management System (DSM) of ECU, make attendant can not be confirmed to be the fault of after-treatment system the very first time, cause the efficiency of Failure elimination and trouble location maintenance lower.The controlling method of a kind of after-treatment system provided by the invention, reprocessing ECU (Electrical Control Unit) and controller, find in time fault point by the mode of failure code is set, and then fault point overhauled, and improves overhaul efficiency.First the controlling method to a kind of after-treatment system provided by the invention, describes in detail below.
The method comprises:
Controller receives the indicating fault code that reprocessing ECU (Electrical Control Unit) sends;
Whether the indicating fault code that controller judges described reception equates with in a plurality of after-treatment system indicating fault codes that prestore one, the different alarm operation of correspondence of the different faults indication code prestoring;
If the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, record trouble is indicated code, and carries out corresponding alarm operation according to described indicating fault code.
In scheme provided by the present invention, after receiving the indicating fault code of reprocessing ECU (Electrical Control Unit) transmission, controller compares the indicating fault code of reception and the indicating fault code prestoring, if the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, illustrate that fault has occurred after-treatment system, according to indicating fault code, can determine the alarm operation that need to carry out, and then carry out corresponding operation.According to technological scheme of the present invention, indicating fault code is pre-stored in fault management internal memory (DSM), when defining fault generation, can carry out fault recording according to indicating fault code, facilitate staff to check, and then the localization of faults in time, and carry out the maintenance of fault point, improve after-treatment system troubleshooting efficiency.
In order to make those skilled in the art person understand better the technological scheme in the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiments.Embodiment based in the present invention, the every other embodiment that those of ordinary skills obtain, should belong to the scope of protection of the invention.
Shown in Fig. 1, be the controlling method embodiment's 1 of a kind of after-treatment system provided by the invention flow chart, the present embodiment specifically can comprise the steps:
S301: controller receives the indicating fault code that reprocessing ECU (Electrical Control Unit) sends.
Preferably, described indicating fault code is placed in reprocessing fault diagnosis message DM1DCU and sends.The alarm operation of described indicating fault code for representing to carry out, such as bright light operation or torque limiting operation, preferably, can be respectively the bright light and the limit that when reprocessing ECU (Electrical Control Unit) breaks down, need and turn round indicating fault code corresponding to operation setting, with indication carry out bright light and limit while turning round for be the fault of after-treatment system, facilitate staff to identify.
S302: whether the indicating fault code that controller judges described reception equates if so, to enter step S303 with in a plurality of after-treatment system indicating fault codes that prestore one.
Pre-stored a plurality of indicating fault codes for after-treatment system in controller, if the indicating fault code that after-treatment system sends equate with any one in the indicating fault code prestoring, illustrate that fault has occurred after-treatment system, enter S303.
S303: controller record trouble indication code.
When definite after-treatment system breaks down, record trouble indication code, is mainly while breaking down for after-treatment system here, and staff can be by checking fault recording determines what fault has occurred, and the fault point of breaking down.
S304: controller is carried out corresponding alarm operation according to described indicating fault code.
Because required different alarm operations when the corresponding reprocessing ECU (Electrical Control Unit) of different indicating fault codes breaks down, when after-treatment system breaks down, carry out corresponding alarm operation according to indicating fault code, such as bright light and/or limit are turned round.
The technological scheme of the present embodiment, indicating fault code has prestored in controller, after receiving the indicating fault code of reprocessing ECU (Electrical Control Unit) transmission, the indicating fault code of reception and the indicating fault code prestoring are compared, if the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, illustrate that fault has occurred after-treatment system, according to indicating fault code, can determine the alarm operation that need to carry out, and then carry out corresponding operation.According to technological scheme of the present invention, indicating fault code is pre-stored in fault management internal memory (DSM), when defining fault generation, can carry out fault recording according to indicating fault code, facilitate staff to check, and then the localization of faults in time, and carry out the maintenance of fault point, improve after-treatment system troubleshooting efficiency.
Shown in Fig. 4, be the controlling method embodiment's 2 of a kind of after-treatment system provided by the invention flow chart, the present embodiment specifically can comprise the steps:
S401: reprocessing ECU (Electrical Control Unit) monitoring after-treatment system running state.
S402: when reprocessing ECU (Electrical Control Unit) monitoring after-treatment system breaks down, send indicating fault code to controller.
Preferably, described indicating fault code is placed in DM1DCU message and sends.
Reprocessing fault refers to the system failure or unit failure, and for example temperature transducer has been broken, and urea pump has been broken etc.If after-treatment system breaks down, may just affect the discharge of motor, suppose that urea pump broken, urea can not normal injection, and motor discharge has exceeded standard so certainly, and this class fault can be described as catastrophe failure.For example in after-treatment system, sensor fault does not affect urea-spray, do not affect the discharge of NOx yet, according to the emission request of the NOx of current national legislation Zhong Dui state four motors, be less than the regulation of 3.5g/ (Kw.h), now exhaust index is less than this value, so such fault can be defined as minor failure.
Whether the order of severity of described after-treatment system fault is usingd affects motor emission behaviour as index.According to fault, whether affect motor discharge by fault divided rank, such as minor failure or catastrophe failure, and then determine which kind of alarm operation sends which kind of indicating fault code carries out, such as, if minor failure can only send indicating fault code corresponding to bright light, controller receives after indicating fault code, determine after fault, carry out the operation that a bright light is carried out alarm.
Shown in Fig. 5, be the controlling method embodiment's 3 of a kind of after-treatment system provided by the invention flow chart, the present embodiment specifically can comprise the steps:
S501: reprocessing ECU (Electrical Control Unit) monitoring after-treatment system running state.
S502: reprocessing ECU (Electrical Control Unit), when monitoring after-treatment system and break down, sends indicating fault code to controller.
S503: controller receives the indicating fault code that reprocessing ECU (Electrical Control Unit) sends.
S504: whether the indicating fault code that controller judges described reception equates with in a plurality of after-treatment system indicating fault codes that prestore one, if so, enter step S505.
S505: controller record trouble indication code.
S506: controller is carried out corresponding alarm operation.
Explanation based on above-described embodiment, shown in figure 6, is a kind of signal diagram corresponding to technical solution of the present invention under practical application scene.Wherein the definition of parameter name is all with reference to giving an example in above-described embodiment.Reprocessing ECU (Electrical Control Unit) DCU is mainly responsible for the fault diagnosis of after-treatment system, and after after-treatment system breaks down, DCU is responsible for identification.Not serious when reprocessing fault, while not affecting motor discharge, DCU judges that such fault is minor failure, only need to light OBD lamp, does not need to carry out torque limited operation; When reprocessing failure ratio is more serious, when this fault may affect motor discharge, DCU judges that such fault is catastrophe failure, need to light OBD lamp, carries out countdowning for 50 hours simultaneously, after timing completes, carries out torque limited operation; When reprocessing fault is serious, when this fault directly affects motor discharge, DCU judges that such fault is catastrophe failure, need to light immediately OBD lamp, carries out immediately torque limiting operation simultaneously.Within wherein said 50 hours, be that regulation according to OBD rules arranges, if rules and regulations change or user need to change this numerical value, can arrange separately this numerical value.
DCU completes after reprocessing Fault Identification, and by after-treatment system indicating fault message, DM1DCU sends to ECU by fault message.When after-treatment system fault is that minor failure is only need to light OBD lamp time, DCU is sent and is lighted the SPN code that OBD lamp is corresponding by DM1DCU message, indicating fault code described in the corresponding above-described embodiment of SPN code here, can User Defined, here for the convenient explanation to technical solution of the present invention, take and light SPN code that OBD lamp is corresponding and carry out open explanation as example as 3361; When reprocessing fault is while 50 little time limits turning round fault, DCU first sends SPN code 3361 by DM1DCU message, then, DCU completes after timing in 50 hours, DCU sends limit by DM1DCU message and turns round corresponding SPN code (limit is turned round corresponding SPN code equally can be by User Defined, take 4090 describe as example); When reprocessing fault is that catastrophe failure need to be limit while turning round immediately, DCU sends SPN code 4090(by DM1DCU message can not send the SPN code of lighting a lamp corresponding), light a lamp and torque limiting operation is carried out simultaneously.
ECU receives after message, be responsible for resolving the SPN code in DM1DCU message, SPN code after parsing enters DSM and carries out fault triggering, the SPN code being about to after resolving mates with the SPN code prestoring, the SPN code of lighting a lamp prestoring can be designated as to Com_numDM1DCUSPN1_CA, limit is turned round corresponding SPN code and is designated as Com_numDM1DCUSPN2_CA, if the SPN code in message equates with the numerical value of demarcating in Com_numDM1DCUSPN1_CA or Com_numDM1DCUSPN2_CA, the corresponding DFC_ComDM1DCUSPN1(of quoting indication need to be lit a lamp, representation can be self-defined) or DFC_ComDM1DCUSPN2(indication need torque limiting, can be self-defined) mistake.With reference to above-mentioned example, Com_numDM1DCUSPN1_CA is demarcated to numerical value and be designated as 3361, Com_numDM1DCUSPN2_CA is demarcated to numerical value and be designated as 4090.When the DM1DCU message SPN code of DCU transmission comprises 3361 or 4090, quote corresponding mistake, i.e. DFC_ComDM1DCUSPN1 or DFC_ComDM1DCUSPN2.
If DFC_ComDM1DCUSPN1 fault is quoted, DSM need to demarcate the grade of this fault, to trigger bright light operation; When DFC_ComDM1DCUSPN2 fault is quoted, the grade that DSM not only will demarcate this fault triggers bright light operation, calls fault limit of functions demarcating module (DINH) simultaneously, by DINH module invoking performance function, limits and turns round operation.Here said fault level can be understood as the trigger signal that triggers alarm operation, such as, the grade that bright light operational correspondence is set is 1,, when DFC_ComDM1DCUSPN1 fault is quoted, triggers the bright light operation of grade 1 correspondence; If bright light and torque limiting are operating as grade 2,, when DFC_ComDM1DCUSPN2 fault is quoted, trigger the operation of grade 2 correspondences, not only bright light but also torque limiting.
DCU sends SPN code to ECU by DM1DCU message, ECU resolves rear to Fault Management System (DSM), DSM not only can realize reprocessing fault and reported an error but also can light OBD lamp and limit is turned round function, execution is lit a lamp and torque limiting operation is completed by ECU, no longer needs DCU directly to send that instruction removes to light OBD lamp and limit is turned round.Simultaneous faults management system (DSM) is carried out Fault Identification according to the message information receiving, and quotes bug (DFC) after identification, and this bug (DFC) information enters fault management internal memory.System degradation function that the Fault Management System of ECU (DSM) is responsible for realizing that bright light limit is turned round etc.Technician can, by checking the quick failure judgement of Fault Management System (DSM) source of ECU, be that the bright light limit that the fault of motor own or reprocessing fault cause is turned round problem.
Corresponding to embodiment of the method above, the present invention also provides a kind of controller, and as shown in Figure 7, this controller comprises: receiving module 710, judge module 720, logging modle 730, Executive Module 740;
Receiving module 710, the indicating fault code sending for receiving reprocessing ECU (Electrical Control Unit);
Whether judge module 720, equate the different alarm operation of correspondence of the different faults indication code prestoring with of a plurality of after-treatment system indicating fault codes that prestore for the indicating fault code that judges described reception;
As shown in Figure 8, be the structural representation of a kind of reprocessing ECU (Electrical Control Unit) provided by the invention, this ECU (Electrical Control Unit) comprises: monitoring modular 810, transmitting module 820;
Monitoring modular 810, for monitoring after-treatment system running state;
Transmitting module 820, while breaking down for reprocessing ECU (Electrical Control Unit) monitoring after-treatment system, to controller, send indicating fault code, so that controller receives after failure code, whether the indicating fault code that judges described reception equates with in a plurality of after-treatment system indicating fault codes that prestore one, the different alarm operation of correspondence of the different faults indication code prestoring; If the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, record trouble is indicated code, and according to described indicating fault code, carries out corresponding alarm and grasp.
Further, the present invention also provides a kind of control system of after-treatment system, and as shown in Figure 9, this system comprises controller as shown in Figure 7 and the reprocessing ECU (Electrical Control Unit) shown in Fig. 8.
While for convenience of description, describing above device, with function, being divided into various unit describes respectively.Certainly, when enforcement is of the present invention, the function of each unit can be realized in same or a plurality of software and/or hardware.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, each embodiment stresses is the difference with other embodiments.Especially, for system embodiment, because it is substantially similar in appearance to embodiment of the method, so describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method.System embodiment described above is only schematic, the wherein said unit as separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed on a plurality of NEs.Can select according to the actual needs some or all of module wherein to realize the object of the present embodiment scheme.Those of ordinary skills, in the situation that not paying creative work, are appreciated that and implement.
The above is only the specific embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a controlling method for after-treatment system, is characterized in that, comprising:
Controller receives the indicating fault code that reprocessing ECU (Electrical Control Unit) sends;
Whether the indicating fault code that controller judges described reception equates with in a plurality of after-treatment system indicating fault codes that prestore one, the different alarm operation of correspondence of the different faults indication code prestoring;
If the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, record trouble is indicated code, and carries out corresponding alarm operation according to described indicating fault code.
2. method according to claim 1, is characterized in that, described indicating fault code is placed in reprocessing fault diagnosis message DM1DCU and sends.
3. a controller, is characterized in that, comprising:
Receiving module, the indicating fault code sending for receiving reprocessing ECU (Electrical Control Unit);
Whether judge module, equate the different alarm operation of correspondence of the different faults indication code prestoring with of a plurality of after-treatment system indicating fault codes that prestore for the indicating fault code that judges described reception;
Logging modle, while equating for the indicating fault code receiving and a plurality of after-treatment system indicating fault codes that prestore one, record trouble indication code;
Executive Module, for carrying out corresponding alarm operation according to described indicating fault code.
4. a controlling method for after-treatment system, is characterized in that, comprising:
Reprocessing ECU (Electrical Control Unit) monitoring after-treatment system running state;
When reprocessing ECU (Electrical Control Unit) monitoring after-treatment system breaks down, to controller, send indicating fault code;
So that controller receives after failure code, whether the indicating fault code that judges described reception equates with in a plurality of after-treatment system indicating fault codes that prestore one, the different alarm operation of correspondence of the different faults indication code prestoring; If the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, record trouble is indicated code, and carries out corresponding alarm operation according to described indicating fault code.
5. a reprocessing ECU (Electrical Control Unit), is characterized in that, comprising:
Monitoring modular, for monitoring after-treatment system running state;
Transmitting module, while breaking down for reprocessing ECU (Electrical Control Unit) monitoring after-treatment system, to controller, send indicating fault code, so that controller receives after failure code, whether the indicating fault code that judges described reception equates with in a plurality of after-treatment system indicating fault codes that prestore one, the different alarm operation of correspondence of the different faults indication code prestoring; If the indicating fault code receiving equates with in a plurality of after-treatment system indicating fault codes that prestore one, record trouble is indicated code, and according to described indicating fault code, carries out corresponding alarm and grasp.
6. a control system for after-treatment system, is characterized in that, described system comprises:
Reprocessing ECU (Electrical Control Unit) as claimed in claim 5, controller claimed in claim 3.
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| CN111175244A (en) * | 2019-12-31 | 2020-05-19 | 西安古鲸电子技术有限公司 | Intelligent image analysis system |
| CN111963287A (en) * | 2020-08-21 | 2020-11-20 | 中国重汽集团济南动力有限公司 | OBD interaction system, method and device for vehicle engine and post-processing |
| CN114513600A (en) * | 2022-04-20 | 2022-05-17 | 深圳市星卡科技有限公司 | Endoscope and thermal imaging combined detection device, method, equipment and medium |
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