CN114384887A - Emission diagnosis method and device and electronic equipment - Google Patents
Emission diagnosis method and device and electronic equipment Download PDFInfo
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Abstract
The application provides an emission diagnosis method and device and electronic equipment, and relates to the technical field of automobiles. The method comprises the following steps: acquiring first working state information of the equipment of the first preset type; receiving second working state information sent by an independent DEC-ECU cluster, wherein the second working state information is obtained by monitoring the working state of equipment in the automobile, wherein the equipment belongs to a second preset type, by the independent DEC-ECU cluster; and responding to a service request sent by the external diagnostic equipment, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests. By using the emission diagnosis method and system provided by the application, the problem that OBD diagnosis IDs cannot be distributed is solved.
Description
Technical Field
The embodiment of the application relates to the technical field of automobiles, in particular to an emission diagnosis method and device and electronic equipment.
Background
With the improvement of human living standard, the requirements On health and living environment are higher and higher, the country pays more and more attention to the green environmental protection of the automobile industry, and the requirements On the emission OBD (On Board Diagnostic system) regulation of automobiles are stricter and stricter. The requirements for outputting the relevant Diagnostic information of the automobile OBD are clearly specified by national emission regulations, ISO & SAE relevant national standards, wherein only 8 DEC-ECUs (Diagnostic or emission electronic control units) are defined in the regulations, DEC refers to a key Diagnostic module on the automobile, and ECU refers to an emission electronic control module on the automobile.
However, as the intellectualization, electrification and hybrid of the automobile rapidly develop, the number of the DEC-ECUs on the automobile begins to exceed 8, but as the OBD diagnosis ID on the automobile can only be distributed to the DEC-ECUs which are in accordance with the regulation definition, the phenomenon that the OBD diagnosis ID cannot be distributed to the DEC-ECUs which are not in accordance with the regulation definition exists.
Disclosure of Invention
The embodiment of the application provides an emission diagnosis method, an emission diagnosis device and electronic equipment, and aims to solve the problem that an automobile OBD diagnosis ID cannot be distributed.
In a first aspect, an emission diagnostic method is provided for an independent DEC-ECU cluster of a vehicle, the method including:
monitoring the working state of equipment belonging to a first preset type in the automobile to obtain first working state information of the equipment of the first preset type, and storing the first working state information;
receiving second working state information sent by an independent DEC-ECU cluster, wherein the second working state information is obtained by monitoring the working state of equipment in the automobile, wherein the equipment belongs to a second preset type, by the independent DEC-ECU cluster;
and responding to a service request sent by the external diagnostic equipment, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests.
Optionally, under the condition that the type of the service request is a real-time monitoring service request;
responding to a service request sent by an external diagnostic device, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests, wherein the method comprises the following steps:
and responding to the real-time monitoring service request, summarizing the first working state information and the second working state information, and replying the summarized information to the external diagnostic equipment.
Optionally, on a condition that the type of the service request is a freeze frame data request; the method further comprises the following steps:
freezing the first working state information and the second working state information at the current moment and storing the first working state information and the second working state information when the fault related to the emission is identified;
responding to a service request sent by an external diagnostic device, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests, wherein the method comprises the following steps:
and in response to the frozen frame data request, summarizing the second working state information and the first working state information at the freezing moment, and replying the summarized information to the external diagnostic equipment.
Optionally, the method further comprises:
according to the working state of the independent DEC-ECU cluster, when the fault of the independent DEC-ECU cluster is judged, outputting first fault information for storage;
receiving and storing second fault information output by the non-independent DEC-ECU cluster, wherein the second fault information is output by the non-independent DEC-ECU cluster when judging a fault of the non-independent DEC-ECU cluster according to the working state of the non-independent DEC-ECU cluster;
and responding to a fault diagnosis request sent by the external diagnosis equipment, and summarizing the first fault information and the second fault information after processing so as to reply to the external diagnosis equipment.
Optionally, in response to a fault diagnosis request sent by the external diagnostic device, after processing and summarizing the first fault information and the second fault information to reply to the external diagnostic device, the method further includes:
and clearing the first fault information and the second fault information in response to a fault clearing request sent by the external diagnostic equipment.
Optionally, in response to the fault clearing request, clearing the first fault information and the second fault information includes:
freezing diagnostic logic between the independent DEC-ECU cluster and the non-independent DEC-ECU cluster while clearing the first fault information and the second fault information.
Optionally, under the condition that the type of the service request is a vehicle information reading request, the second operating state information includes a software calibration identification code, a calculation calibration verification code and a vehicle-mounted diagnosis coverage rate;
responding to a service request sent by an external diagnostic device, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests, wherein the method comprises the following steps:
and responding to the vehicle information reading request, and summarizing the software calibration identification code and the vehicle-mounted diagnosis coverage rate to reply to the external diagnosis equipment.
Optionally, in response to the vehicle information reading request, aggregating the software calibration identification code and the on-board diagnosis coverage rate to reply to the external diagnosis device, including:
if the non-independent DEC-ECU cluster is identified that the calibration verification code is not calculated, taking a first default value as the calibration verification code to perform service reply on the external diagnostic equipment;
and if the received software calibration identification code is identified to be not in accordance with the preset accurate value, taking a second default value as the software calibration identification code, and taking a third default value as the calibration verification code to reply to the external diagnostic equipment.
A second aspect of embodiments of the present application provides an emission diagnostic apparatus for use in a standalone DEC-ECU cluster for a vehicle, the apparatus comprising:
the first monitoring module is used for monitoring the working state of equipment in the automobile, wherein the equipment belongs to a first preset type, obtaining first working state information of the equipment in the first preset type, and storing the first working state information;
the second monitoring module is used for receiving second working state information sent by the non-independent DEC-ECU cluster, wherein the second working state information is obtained by monitoring the working state of equipment in the automobile, wherein the equipment belongs to a second preset type, by the non-independent DEC-ECU cluster;
and the summary processing module is used for responding to a service request sent by the external diagnostic equipment, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests.
A third aspect of embodiments of the present application provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor, when executing, implements the emission diagnostic method according to the first aspect of embodiments of the present application.
By adopting the emission diagnosis method provided by the application, when different service requests are received, the dependent DEC-ECU cluster sends the second working state information acquired by the dependent DEC-ECU cluster to the independent DEC-ECU cluster, and the independent DEC-ECU cluster replies the different service requests after summarizing the first working state information acquired by the dependent DEC-ECU cluster and the second working state information acquired by the dependent DEC-ECU cluster. Therefore, the OBD diagnosis ID is not required to be allocated to the non-independent DEC-ECU cluster, the non-independent DEC-ECU cluster can respond to the corresponding service request by transmitting the acquired second working state information to the independent DEC-ECU cluster, and the problem that the OBD diagnosis ID cannot be allocated is solved.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a flow chart illustrating steps of a method for emissions diagnostics according to an embodiment of the present application;
FIG. 2 is a logic diagram of a diagnostic system in which a service request is a freeze frame data request according to another embodiment of the present application;
FIG. 3 is a logic diagram of a diagnostic system in which a service request is a fault diagnosis request according to another embodiment of the present application;
FIG. 4 is a logic diagram of a diagnostic system in which a service request is a zero clearing request according to another embodiment of the present application;
fig. 5 is a logic diagram of a diagnostic system in which a service request is a vehicle information reading request according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the related art, only 8 OBD diagnostic IDs exist on the automobile to allocate DEC-ECUs which are in compliance with the regulations, and the phenomenon that OBD diagnostic IDs cannot be allocated to DEC-ECUs beyond the quantity specified by the regulations exists.
The applicant found in research that the OBD diagnostic ID can not be reasonably allocated, and the OBD diagnostic ID is equivalent to the identification number of the DEC-ECU, and when the diagnostic device issues a diagnostic request, the reply content of the DEC-ECU can be distinguished by the OBD diagnostic ID, so that the DEC-ECU in compliance with the regulations can directly acquire a service request by 8 OBD diagnostic IDs, and the DEC-ECU exceeding the quantity specified by the regulations can not directly acquire a service request without the OBD diagnostic ID.
In view of the above, the present application provides an emission diagnostic method, in which an independent DEC-ECU cluster is used as DEC-ECUs meeting the requirements of regulations, an independent DEC-ECU cluster is used as DEC-ECUs exceeding the quantities specified by the regulations, when different service requests are received, the dependent DEC-ECU cluster sends second working state information obtained by the dependent DEC-ECU cluster to the independent DEC-ECU cluster, the independent DEC-ECU cluster obtains first working state information and obtains the second working state information through the independent DEC-ECU cluster, and then the first working state information and the second working state information are processed and summarized, and then the different service requests are replied. Therefore, the OBD diagnosis ID is not required to be allocated to the non-independent DEC-ECU cluster, the non-independent DEC-ECU cluster can respond to the corresponding service request by transmitting the acquired second working state information to the independent DEC-ECU cluster, and the problem that the OBD diagnosis ID cannot be allocated is solved.
Example one
Referring to fig. 1, an emission diagnostic method, applied to a standalone DEC-ECU cluster of a vehicle, includes the steps of:
s1-1, monitoring the working state of equipment in the automobile, wherein the equipment belongs to a first preset type, obtaining first working state information of the equipment in the first preset type, and storing the first working state information;
step S1-2, receiving second working state information sent by the non-independent DEC-ECU cluster, wherein the second working state information is obtained by monitoring the working state of equipment in the automobile, wherein the equipment belongs to a second preset type, by the non-independent DEC-ECU cluster;
and step S1-3, responding to the service request sent by the external diagnostic equipment, and processing the first working state information and/or the second working state information according to the type of the service request so as to reply different services to different service requests.
In this embodiment, the different service requests include: a real-time monitoring service request, a freeze frame data request and a vehicle information reading request. The external diagnostic equipment can send the service request to the independent DEC-ECU cluster, and can also send a fault diagnosis request and a fault zero clearing request to the independent DEC-ECU cluster. Moreover, when the diagnosis is actually performed, the service requests of different types may be executed individually or sequentially according to the rules established by the national standards, which is not limited herein.
Wherein the first preset type of device is different from the second preset type of device, the first preset type of device may be a control unit with OBD diagnostic ID, such as an engine and hybrid controller, etc., and the second preset type of device may be a device related to control function and emission diagnosis, such as an air conditioner, etc. The independent DEC-ECU cluster can directly acquire first working state information of equipment of a first preset type, and can also indirectly acquire second working state information of equipment of a second preset type through the non-independent DEC-ECU cluster; and the information of the devices of the first preset type can only be obtained by the independent DEC-ECU cluster, and the information of the devices of the second preset type can only be obtained by the non-independent DEC-ECU cluster.
The non-independent DEC-ECU cluster transmits the second working state information acquired by the non-independent DEC-ECU cluster to the independent DEC-ECU cluster, and the received second working state information is processed by the independent DEC-ECU cluster and then summarized with the first working state information acquired by the non-independent DEC-ECU cluster to respond to different types of service requests. The non-independent DEC-ECU cluster forwards the second working state information to the independent DEC-ECU cluster, so that OBD diagnosis IDs do not need to be distributed to the non-independent DEC-ECU cluster, and the problem that the OBD diagnosis IDs cannot be distributed is solved.
In a possible implementation manner, in a case that the type of the service request is a real-time monitoring service request, in response to the service request sent by the external diagnostic device, processing the first operating state information and/or the second operating state information according to the type of the service request, so as to perform different service replies for different service requests includes:
and responding to the real-time monitoring service request, summarizing the first working state information and the second working state information, and replying the summarized information to the external diagnostic equipment.
In this embodiment, the dependent DEC-ECU cluster continuously transmits the acquired second operating state information to the independent DEC-ECU cluster, and the independent DEC-ECU cluster continuously stores the first operating state information received in real time.
Referring to fig. 1, if a serviceman needs to obtain information related to a vehicle in real time during maintenance, a service request # 01 is sent to an independent DEC-ECU cluster through an external diagnostic device, and the service request # 01 is a real-time monitoring service request, at this time, the independent DEC-ECU cluster takes out first working state information of the independent DEC-ECU cluster from a storage area, copies received second working state information, summarizes the two pieces of information and forwards the two pieces of information to the external diagnostic device, so as to reply to the service request # 01 sent by the external diagnostic device for service.
In a possible embodiment, in case the type of the service request is a freeze frame data request, the method further comprises:
and step S2-1, freezing the first and second working state information at the current moment and storing the first and second working state information when the fault related to the emission is identified.
In this step, referring to fig. 2, since the non-independent DEC-ECU cluster continuously transmits the acquired second operating state information to the independent DEC-ECU cluster, when the independent DEC-ECU cluster recognizes related faults such as a misfire fault or a catalyst fault in the exhaust system. For example, when the independent DEC-ECU cluster recognizes an equipment failure of a first service type through the first operation state information, or recognizes an equipment failure of a second service type according to the received second operation state information, since the independent DEC-ECU cluster receives the second operation state information sent by the non-independent DEC-ECU cluster in real time, when the independent DEC-ECU cluster recognizes a failure related to emission, the first operation state information and the received second operation state information at the present time are immediately frozen and stored.
The frozen first working state information and the frozen second working state information stored in the independent DEC-ECU cluster are not limited to one, and the first working state information and the second working state information can be frozen for storage as long as the exhaust system fails.
Step S2-2, in response to the service request sent by the external diagnostic device, processing the first operating state information and/or the second operating state information according to the type of the service request, so as to perform different service replies for different service requests, including:
and in response to the frozen frame data request, summarizing the second working state information and the first working state information at the freezing moment, and replying the summarized information to the external diagnostic equipment.
Referring to fig. 2, if a maintenance person performs maintenance, it is necessary to obtain other related information when the vehicle exhaust system fails as reference information to determine whether the vehicle exhaust system fails. Sending a #02 service request to the independent DEC-ECU cluster through the external diagnosis equipment, wherein the #02 service request is a frozen frame data request, and at the moment, the independent DEC-ECU cluster summarizes and forwards the stored frozen second working state information and the stored first working state information to the external diagnosis equipment so as to reply to the #02 service request sent by the external diagnosis equipment; and the maintenance personnel judge whether the vehicle emission system is in fault or not according to the received first working state information and the second working state information as reference.
In a possible embodiment, when the independent DEC-ECU cluster receives a fault diagnosis request sent by an external diagnosis device, the method further includes:
and step S3-1, outputting first fault information for storage when judging that the independent DEC-ECU cluster has a fault according to the working state of the independent DEC-ECU cluster.
In this step, the independent DEC-ECU cluster includes a first sensor and a first circuit, the first circuit is used to implement logics such as fault processing, fault receiving, and fault recovery, the first sensor is used to monitor information such as voltage and current output by the first circuit in real time and send the information to the controller, the controller determines whether the first circuit is in a short circuit state or an open circuit state according to the voltage and current information, and if so, determines that the independent DEC-ECU cluster is in a fault state at the time and outputs first fault information for storage.
And step S3-2, receiving and storing second fault information output by the non-independent DEC-ECU cluster, wherein the second fault information is output by the non-independent DEC-ECU cluster when judging self fault according to self working state.
Referring to fig. 3, when the non-independent DEC-ECU cluster performs fault diagnosis on itself, it may repeatedly perform multiple judgments, and also may perform judgment of a preset time, and after the multiple judgments and the judgment of the preset time are completed, it may feed back second fault information having a fault flag bit and a diagnosis completion flag bit to the independent DEC-ECU cluster, where the fault flag bit refers to a flag when a fault occurs, and the diagnosis completion flag bit refers to a flag that occurs after the fault diagnosis is completed.
In this step, the dependent DEC-ECU cluster includes a second sensor and a second circuit, the second circuit is used to implement logic such as fault handling or fault receiving and recovering, and outputs the second cluster information to the second sensor in real time, the second sensor is used for monitoring the information such as voltage and current output by the second circuit in real time, and sending to the controller, the controller judges whether the second circuit is in short circuit or open circuit state by the voltage and current information, if yes, judging that the non-independent DEC-ECU cluster is in a fault state at the moment, feeding back second fault information to the independent DEC-ECU cluster by the non-independent DEC-ECU cluster, processing the second fault information and storing the second fault information by the independent DEC-ECU cluster, the processed second failure information is acquired from the storage area only when a service request of the external diagnostic device is received.
And step S3-3, in response to the fault diagnosis request sent by the external diagnosis equipment, processing and summarizing the first fault information and the second fault information so as to reply to the external diagnosis equipment.
In this step, referring to fig. 3, after receiving the second failure information fed back by the non-independent DEC-ECU cluster, the independent DEC-ECU cluster may determine the failure state of the non-independent DEC-ECU cluster according to the second failure information, and store the failure state of the non-independent DEC-ECU cluster, so as to determine the failure state multiple times later. On the premise that the type of the service request is a fault diagnosis request, the fault diagnosis request comprises the following steps: confirming a fault reading request, a driving cycle fault reading request and a permanent fault reading request; the fault conditions of the non-independent DEC-ECU cluster include: pending status (failure to be confirmed), confirm status (failure confirmed), and permanent status (permanent failure).
For example, referring to fig. 3, for a request to confirm a faulty read: and after one driving cycle, if the independent DEC-ECU cluster receives second fault information fed back by the non-independent DEC-ECU cluster, judging that the non-independent DEC-ECU cluster has a fault after one driving cycle, and entering a pending state at the moment. And sending a service request of #03 to the independent DEC-ECU cluster by using the external diagnostic equipment by a maintenance person, wherein the service request of #03 is a fault reading request, and the independent DEC-ECU cluster summarizes pending state information sent by the independent DEC-ECU cluster and the non-independent DEC-ECU cluster so as to reply to the service request of the external diagnostic equipment # 03.
As another example, referring to fig. 3, for a driving cycle fault read request: after the independent DEC-ECU cluster confirms a driving cycle, determining that the non-independent DEC-ECU cluster has a fault, and storing a pending state generated in the first driving cycle; after the second driving cycle, if the independent DEC-ECU cluster still receives second fault information output by the non-independent DEC-ECU cluster, the non-independent DEC-ECU cluster is judged to have faults after the two driving cycles, at this time, the non-independent DEC-ECU cluster enters a confirm state, and the confirm state generated by the second driving cycle is stored. And sending a #07 service request to the independent DEC-ECU cluster by a maintenance person by using the external diagnosis equipment, wherein the #07 service request is a driving cycle fault reading request, and the independent DEC-ECU cluster summarizes the confirm state information sent by the independent DEC-ECU cluster and the non-independent DEC-ECU cluster so as to reply to the #07 service request sent by the external diagnosis equipment.
As another example, for a permanent fault read request: the permanent fault read request means that the vehicle passes through 40 driving cycles, the dependent DEC-ECU cluster still sends the second fault information to the dependent DEC-ECU cluster, and the permanent state is entered. And sending a # OA service request to the independent DEC-ECU cluster by using the external diagnosis equipment by a maintenance person, wherein the # OA service request is a permanent fault reading request, and the independent DEC-ECU cluster summarizes the information of the permanent state sent by the independent DEC-ECU cluster and the non-independent DEC-ECU cluster so as to reply the # OA service request sent by the external diagnosis equipment.
In a possible embodiment, when the independent DEC-ECU cluster receives a fault diagnosis request sent by an external diagnosis device, the step S3-3 is followed by:
and clearing the first fault information and the second fault information in response to a fault clearing request sent by the external diagnostic equipment.
In this embodiment, referring to fig. 4, after the fault diagnosis is performed, information in the independent DEC-ECU cluster and the non-independent DEC-ECU cluster needs to be cleared to avoid occupying redundant memory. When the independent DEC-ECU cluster is cleared, the independent DEC-ECU cluster comprises a fault zone bit and a diagnosis completion zone bit, and receives, judges and stores a fault state, the dependent DEC-ECU cluster also comprises fault diagnosis, and corresponding fault information can be generated in the areas, so that all the fault information needs to be cleared.
In addition, referring to fig. 4, in order to avoid that the clearing process interferes with the diagnostic process during the clearing process, the diagnostic logic between the independent DEC-ECU cluster and the non-independent DEC-ECU cluster is frozen while clearing the first fault information in the independent DEC-ECU cluster and the second fault information in the non-independent DEC-ECU cluster to prevent the clearing process from interfering with the diagnostic process.
A maintenance worker sends a #04 service request to the independent DEC-ECU cluster through an external diagnostic device, such as a diagnostic instrument, the #04 service request is a fault diagnosis request to judge whether the independent DEC-ECU cluster and the non-independent DEC-ECU cluster have faults or not, if the independent DEC-ECU cluster is not cleared completely, the independent DEC-ECU cluster replies a negative response of the diagnostic instrument within a preset time to represent that the independent DEC-ECU cluster is not cleared completely; and if the independent DEC-ECU cluster is cleared, the independent DEC-ECU cluster replies a positive response of the diagnostic instrument within a preset time, and the diagnostic logic between the independent DEC-ECU cluster and the non-independent DEC-ECU cluster is recovered to continue the diagnostic process. Wherein the diagnostic logic between the cluster of independent DEC-ECUs and the cluster of non-independent DEC-ECUs comprises a fault diagnosis process as shown in FIG. 3.
In a possible implementation manner, under the condition that the type of the service request is a vehicle information reading request, the second working state information comprises a software calibration identification code, a calculation calibration verification code and an on-board diagnosis coverage rate;
responding to a service request sent by an external diagnostic device, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests, wherein the method comprises the following steps:
and responding to the vehicle information reading request, and summarizing the software calibration identification code and the vehicle-mounted diagnosis coverage rate to reply to the external diagnosis equipment.
In the present embodiment, the software calibration identification code is CAL-id (calibration identification), the calibration Verification code is cvn (calibration Verification number), and the in-vehicle diagnosis coverage is iupr (in Use Performance ratio). And the non-independent DEC-ECU cluster calculates the calibration verification code, collects the software calibration identification code and the relevant information of the vehicle-mounted diagnosis coverage rate and sends the information to the independent DEC-ECU cluster.
When the independent DEC-ECU cluster performs service reply on the external diagnostic equipment, for example, a #09 service reply, if the non-independent DEC-ECU cluster is identified not to calculate the calibration verification code, the non-independent DEC-ECU cluster sends a first default value as the calibration verification code to the independent DEC-ECU cluster, and the independent DEC-ECU cluster uses the first default value as the calibration verification code to perform service reply on the external diagnostic equipment.
When the independent DEC-ECU cluster performs service reply on the external diagnostic equipment, if the received software calibration identification code is identified to be not in accordance with a preset accurate value, the non-independent DEC-ECU cluster takes a second default value as the software calibration identification code and takes a third default value as the calibration verification code, and sends the calibration verification code to the independent DEC-ECU cluster, and the independent DEC-ECU cluster replies the second default value and the third default value to the external diagnostic equipment.
The first default value may be 78, the second default value may be 0x00, the third default value may be 0x3F, and the first default value, the second default value, and the third default value are output values recognizable in the national regulation system, and by inputting the first default value, the second default value, and the third default value into the regulation system, the regulation system can perform information recognition according to the regulation definition even if the dependent DEC-ECU cluster does not calculate the calibration verification code, or even if the received software calibration identification code is recognized to be not compliant with the preset accurate value, that is, in the case of communication abnormality.
In addition, referring to fig. 5, after receiving the software calibration identification code, calculating the calibration verification code and the on-board diagnosis coverage rate, the independent DEC-ECU cluster stores the software calibration identification code and the on-board diagnosis coverage rate, but does not store the calibration verification code. The reason is that after the vehicle is powered on, all calibration verification codes are calculated, however, not all calibration verification codes are calculated at the same time, but calculation is gradually completed, and in the calculation process, if part of the calibration verification codes are calculated and stored, a large number of calibration verification codes are generated, so that the final correct calibration verification codes cannot be identified by a regulation system, and therefore the calibration verification codes are not stored, so that the reading accuracy of the regulation system is ensured.
Example two
Based on the same inventive concept, another embodiment of the present application provides an emission diagnosis apparatus applied to an independent DEC-ECU cluster of an automobile, the apparatus including:
the monitoring module is used for monitoring the working state of equipment in the automobile, wherein the equipment belongs to a first preset type, obtaining first working state information of the equipment in the first preset type, and storing the first working state information;
the receiving module is used for receiving second working state information sent by the non-independent DEC-ECU cluster, wherein the second working state information is obtained by monitoring the working state of equipment in the automobile, wherein the equipment belongs to a second preset type, by the non-independent DEC-ECU cluster;
and the summary processing module is used for responding to a service request sent by the external diagnostic equipment, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests.
In a possible embodiment, if the type of the service request is a real-time monitoring service request; the summarizing processing module is further configured to, in response to the real-time monitoring service request, summarize the first working status information and the second working status information, and reply the summarized information to the external diagnostic device.
In a possible embodiment, on condition that the type of the service request is a freeze frame data request; the device further comprises: a freezing module;
the freezing module is used for freezing the first working state information and the second working state information at the current moment and storing the first working state information and the second working state information when the fault related to the discharge is identified;
the summarizing processing module is further configured to, in response to the frozen frame data request, summarize the second working state information and the first working state information at the freezing time, and reply the summarized information to the external diagnostic device.
In one possible embodiment, when the service request received from the external device is a fault diagnosis request, the independent DEC-ECU cluster further includes: the device comprises a judging module and a storage module;
the judging module is used for outputting first fault information for storage when judging that the independent DEC-ECU cluster has a fault according to the working state of the independent DEC-ECU cluster;
the storage module is used for receiving and storing second fault information output by the non-independent DEC-ECU cluster, wherein the second fault information is output by the non-independent DEC-ECU cluster when the non-independent DEC-ECU cluster judges a fault according to the working state of the non-independent DEC-ECU cluster;
the summarizing processing module is further configured to, in response to a fault diagnosis request sent by the external diagnosis device, summarize the first fault information and the second fault information after processing, so as to reply to the external diagnosis device.
In a possible implementation manner, the summary processing module is further configured to clear the first fault information and the second fault information in response to a fault clear request sent by the external diagnostic device.
In a possible embodiment, the summary processing module is further configured to freeze diagnostic logic between the independent DEC-ECU cluster and the non-independent DEC-ECU cluster while clearing the first fault information and the second fault information.
In a possible implementation manner, under the condition that the type of the service request is a vehicle information reading request, the second working state information comprises a software calibration identification code, a calculation calibration verification code and an on-board diagnosis coverage rate;
the summarizing processing module is further used for summarizing the software calibration identification code and the vehicle-mounted diagnosis coverage rate in response to the vehicle information reading request so as to reply to the external diagnosis equipment.
In a possible embodiment, the apparatus further comprises: the device comprises a first default value processing module and a second default value processing module;
the first default value processing module is used for taking a first default value as the calibration verification code to reply the service to the external diagnostic equipment when recognizing that the calibration verification code is not calculated by the non-independent DEC-ECU cluster;
and the second default value processing module is used for taking the second default value as the software calibration identification code and taking the third default value as the calibration verification code to reply to the external diagnostic equipment when the received software calibration identification code is identified not to conform to the preset accurate value.
EXAMPLE III
An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor when executing implementing any one of the emission diagnostic methods as provided by an embodiment of the present application.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one of skill in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The present application provides an emission diagnosis method, an emission diagnosis device, and an electronic apparatus, which are described in detail above, and the principles and embodiments of the present application are explained herein by using specific examples, and the descriptions of the above examples are only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. An emission diagnostic method for use with a standalone DEC-ECU cluster for a vehicle, the method comprising:
monitoring the working state of equipment belonging to a first preset type in the automobile to obtain first working state information of the equipment of the first preset type, and storing the first working state information;
receiving second working state information sent by an independent DEC-ECU cluster, wherein the second working state information is obtained by monitoring the working state of equipment in the automobile, wherein the equipment belongs to a second preset type, by the independent DEC-ECU cluster;
and responding to a service request sent by the external diagnostic equipment, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests.
2. The method according to claim 1, characterized in that, on condition that the type of the service request is a real-time monitoring service request;
responding to a service request sent by an external diagnostic device, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests, wherein the method comprises the following steps:
and responding to the real-time monitoring service request, summarizing the first working state information and the second working state information, and replying the summarized information to the external diagnostic equipment.
3. The method according to claim 1, characterized in that, on condition that the type of the service request is a freeze frame data request; the method further comprises the following steps:
freezing the first working state information and the second working state information at the current moment and storing the first working state information and the second working state information when the fault related to the emission is identified;
responding to a service request sent by an external diagnostic device, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests, wherein the method comprises the following steps:
and in response to the frozen frame data request, summarizing the second working state information and the first working state information at the freezing moment, and replying the summarized information to the external diagnostic equipment.
4. The method of claim 1, further comprising:
according to the working state of the independent DEC-ECU cluster, when the fault of the independent DEC-ECU cluster is judged, outputting first fault information for storage;
receiving and storing second fault information output by the non-independent DEC-ECU cluster, wherein the second fault information is output by the non-independent DEC-ECU cluster when judging a fault of the non-independent DEC-ECU cluster according to the working state of the non-independent DEC-ECU cluster;
and responding to a fault diagnosis request sent by the external diagnosis equipment, and summarizing the first fault information and the second fault information after processing so as to reply to the external diagnosis equipment.
5. The method according to claim 4, wherein in response to the fault diagnosis request sent by the external diagnosis device, after processing and summarizing the first fault information and the second fault information to reply to the external diagnosis device, further comprising:
and clearing the first fault information and the second fault information in response to a fault clearing request sent by the external diagnostic equipment.
6. The method of claim 5, wherein clearing the first fault information and the second fault information in response to the fault clearing request comprises:
freezing diagnostic logic between the independent DEC-ECU cluster and the non-independent DEC-ECU cluster while clearing the first fault information and the second fault information.
7. The method according to claim 1, wherein the second operating state information comprises a software calibration identification code, a calculation calibration verification code and an on-board diagnosis coverage rate on condition that the type of the service request is a vehicle information reading request;
responding to a service request sent by an external diagnostic device, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests, wherein the method comprises the following steps:
and responding to the vehicle information reading request, and summarizing the software calibration identification code and the vehicle-mounted diagnosis coverage rate to reply to the external diagnosis equipment.
8. The method of claim 7, wherein aggregating the software calibration identification code and the on-board diagnostic coverage in response to the vehicle information read request for reply to the external diagnostic device comprises:
if the non-independent DEC-ECU cluster is identified that the calibration verification code is not calculated, taking a first default value as the calibration verification code to perform service reply on the external diagnostic equipment;
and if the received software calibration identification code is identified to be not in accordance with the preset accurate value, taking a second default value as the software calibration identification code, and taking a third default value as the calibration verification code to reply to the external diagnostic equipment.
9. An emission diagnostic apparatus for use in a standalone DEC-ECU cluster for a vehicle, said apparatus comprising:
the monitoring module is used for monitoring the working state of equipment in the automobile, wherein the equipment belongs to a first preset type, obtaining first working state information of the equipment in the first preset type, and storing the first working state information;
the receiving module is used for receiving second working state information sent by the non-independent DEC-ECU cluster, wherein the second working state information is obtained by monitoring the working state of equipment in the automobile, wherein the equipment belongs to a second preset type, by the non-independent DEC-ECU cluster;
and the summary processing module is used for responding to a service request sent by the external diagnostic equipment, and processing the first working state information and/or the second working state information according to the type of the service request so as to perform different service replies on different service requests.
10. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor when executing implementing the emission diagnostic method of any one of claims 1-8.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103902746A (en) * | 2014-03-11 | 2014-07-02 | 深圳市元征科技股份有限公司 | Fault code, data stream and freeze frame data storage and playback method |
| CN203876529U (en) * | 2014-05-23 | 2014-10-15 | 株式会社电装 | Air conditioner control system for automobile |
| US20140358365A1 (en) * | 2013-05-31 | 2014-12-04 | Nidec Elesys Corporation | Electronic control unit |
| CN105511448A (en) * | 2015-12-30 | 2016-04-20 | 东风商用车有限公司 | Integrated automotive diagnostic instrument and diagnosing method thereof |
| CN107748510A (en) * | 2017-09-25 | 2018-03-02 | 北京新能源汽车股份有限公司 | A kind of car fault diagnosis method, device and automobile |
| CN108227677A (en) * | 2017-12-29 | 2018-06-29 | 深圳市汇川技术股份有限公司 | Vehicle-state monitors system and method |
| CN108632079A (en) * | 2017-03-21 | 2018-10-09 | 欧姆龙汽车电子株式会社 | Vehicular communication system, communication management device and vehicle control apparatus |
| CN110377310A (en) * | 2014-11-12 | 2019-10-25 | 松下电器（美国）知识产权公司 | It updates management method, update managing device and computer-readable recording medium |
| CN110545330A (en) * | 2019-09-29 | 2019-12-06 | 江西大乘汽车有限公司 | vehicle remote monitoring method |
| CN210109880U (en) * | 2019-06-04 | 2020-02-21 | 华东交通大学 | Vehicle-mounted automatic diagnosis system based on cloud computing |
| CN111694341A (en) * | 2020-06-05 | 2020-09-22 | 中国第一汽车股份有限公司 | Fault data storage method and device, vehicle-mounted equipment and storage medium |
-
2020
- 2020-10-16 CN CN202011112235.1A patent/CN114384887A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140358365A1 (en) * | 2013-05-31 | 2014-12-04 | Nidec Elesys Corporation | Electronic control unit |
| CN103902746A (en) * | 2014-03-11 | 2014-07-02 | 深圳市元征科技股份有限公司 | Fault code, data stream and freeze frame data storage and playback method |
| CN203876529U (en) * | 2014-05-23 | 2014-10-15 | 株式会社电装 | Air conditioner control system for automobile |
| CN110377310A (en) * | 2014-11-12 | 2019-10-25 | 松下电器（美国）知识产权公司 | It updates management method, update managing device and computer-readable recording medium |
| CN105511448A (en) * | 2015-12-30 | 2016-04-20 | 东风商用车有限公司 | Integrated automotive diagnostic instrument and diagnosing method thereof |
| CN108632079A (en) * | 2017-03-21 | 2018-10-09 | 欧姆龙汽车电子株式会社 | Vehicular communication system, communication management device and vehicle control apparatus |
| CN107748510A (en) * | 2017-09-25 | 2018-03-02 | 北京新能源汽车股份有限公司 | A kind of car fault diagnosis method, device and automobile |
| CN108227677A (en) * | 2017-12-29 | 2018-06-29 | 深圳市汇川技术股份有限公司 | Vehicle-state monitors system and method |
| CN210109880U (en) * | 2019-06-04 | 2020-02-21 | 华东交通大学 | Vehicle-mounted automatic diagnosis system based on cloud computing |
| CN110545330A (en) * | 2019-09-29 | 2019-12-06 | 江西大乘汽车有限公司 | vehicle remote monitoring method |
| CN111694341A (en) * | 2020-06-05 | 2020-09-22 | 中国第一汽车股份有限公司 | Fault data storage method and device, vehicle-mounted equipment and storage medium |
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