KR20070095857A - System and method for diagnosing trouble of diesel particulate filter - Google Patents

Abstract

A system and a method of diagnosing a trouble of a diesel particulate filter are provided to checking the trouble of the filter remotely and to inform a driver of the trouble so as to exchange or repair the filter. A system of diagnosing a trouble of a diesel particulate filter includes a self-diagnosing unit(20) and a server(40). The self-diagnosing unit has a thermal sensor(22), a pressure sensor(24), a controller(26), an alarm unit(28), and a communication module(32). The controller compares the detection values of the thermal sensor and the pressure sensor with predetermined values, so as to determine whether the filter is out of order. The alarm unit informs a driver of the trouble of the filter in visual and audio manners. The server has a management server(50), a database(52) for managing a filter, a subscriber database(54), and an SMS(Short Message Service) sending module(42). The server is connected to the self-diagnosing unit through wireless communication.

Description

System and method for diagnosing trouble of diesel particulate filter

The present invention relates to a smoke reduction filter failure diagnosis system and method, and more particularly, to remotely diagnose an unexpected failure of the smoke reduction filter and to notify the user and a neighboring service provider to the user, when to repair and replace the filter. The present invention relates to a smoke reduction filter failure diagnosis system and method for providing faster maintenance service.

In general, diesel engines have excellent performance and low fuel efficiency, and are being installed and used in various vehicles throughout the industry, and demand thereof is gradually increasing. While such diesel engines have the above advantages, emissions of CO, HC, NOx, and particulate matter (Particulate Matter) in the exhaust gas causes severe air pollution. Therefore, there is a need to remove harmful substances contained in the exhaust gas of diesel engines, and efforts are being made to improve the environment by tightening the exhaust gas regulations of diesel engines internationally.

The most typical diesel particulate filter is diesel particulate filter (DPF). The DPF is installed in the exhaust line of a diesel engine and includes a ceramic filter coated with an oxidation catalyst. The ceramic filter in the DPF purifies the harmful substances contained in the exhaust gas with harmless CO2 and H2O, and has a structure in which the filter is oxidized by oxidizing particulate matter (PM) collected in the filter with exhaust heat generated during operation. At this time, heavy metals, minerals and ash components in the engine oil and diesel fuel accumulate in the filter without being purified, so the filter should be cleaned and replaced periodically. Cleaning and replacement of the filter can be done when the running time or mileage of the vehicle reaches a predetermined value. In addition, the filter may be cleaned or replaced according to the amount of soot collected in the filter.

As described above, the DPF monitoring system disclosed in the related art is configured to notify the driver of the replacement of the DPF based on data of the driving time, the mileage, or the amount of smoke collected in the filter. However, this type of DPF monitoring system sometimes has a problem in that it does not adequately respond to the failure of the DPF due to an abnormality of the exhaust line.

For example, when the temperature of exhaust gas is too high, a filter may melt | dissolve and may not function properly. In addition, an excessively high pressure is applied to the DPF, which causes an excessive instantaneous generation of particulate matter, which causes the DPF to be clogged before the regenerative logic is operated.

In the event of an unexpected failure of the DPF, it is difficult for the DPF to be repaired or replaced quickly, which can result in severe air pollution as well as reduced output or shutdown due to back pressure on the engine.

The present invention has been proposed to solve the above problems, to diagnose the failure of the smoke reduction filter according to the exhaust line conditions of the vehicle to cope with the unexpected failure of the smoke reduction filter, the failure of the smoke reduction filter Smoke reduction filter fault diagnosis system that alerts the occurrence of self-diagnosis in-vehicle and manages it from a remote management server and notifies member's portable terminal in the form of short message service (SMS), so that repair and replacement can be performed more quickly. And to provide a method.

In addition, the present invention is based on the geographic information system to search for nearby maintenance companies corresponding to the location of the vehicle to notify the member's mobile terminal, on behalf of the member's request for maintenance service service, and smoke to the maintenance company side The purpose of this service is to notify the failure history and status information of the abatement filter so that the repair and replacement service can be performed more quickly.

The smoke reduction filter fault diagnosis system of the present invention for achieving the above object is a smoke reduction filter fault diagnosis system for remotely diagnosing the failure of the smoke reduction filter mounted on the vehicle exhaust line to filter the smoke of the exhaust gas. The temperature sensor for detecting the temperature of the exhaust gas introduced into the smoke reduction filter, the pressure sensor for detecting the inlet pressure of the smoke reduction filter, and the detected values of the temperature sensor and the pressure sensor are compared with a set value. A control unit for determining whether a smoke reduction filter has failed, warning means installed in the vehicle to visually or acoustically warn the driver of a failure state of the smoke reduction filter according to the output of the control unit, and state information of the smoke reduction filter. Self-diagnostic apparatus comprising a communication module for transmitting the remote; And a management server connected to the self-diagnosis device and a wireless network and receiving status information of the smoke reduction filter from the self-diagnosis device and notifying the mobile terminal of the smoke reduction filter to a member side portable terminal. A filter management database for storing the status information and the failure history of the smoke reduction filter in relation to the information, a member management database provided in the management server and storing member personal information including a phone number of a member-side mobile terminal, and the management server A server device including an SMS sending module which is installed in the self-diagnostic apparatus and transmits a failure message of the smoke reduction filter to a member terminal when the failure information of the smoke reduction filter is received from the self-diagnostic apparatus; Characterized in that consisting of.

According to a preferred embodiment of the present invention, the self-diagnostic apparatus is provided with a GPS module for extracting the current position information of the vehicle, the server apparatus maintenance company management database for storing the maintenance company-related information including the geographic information of the maintenance company Service provider search module to search for service providers near the current location of the vehicle in the maintenance service management database in response to the location information of the vehicle received from the self-diagnosis device in the event of a failure of the smoke reduction filter. An information company geographic information notification module for notifying geographic information to a member's portable terminal is installed.

According to a more preferred embodiment of the present invention, the server device further comprises a maintenance company terminal connected to the wireless or wired network, the server device communicates with the member-side portable terminal to accept the reservation request of the member side; In addition, a reservation service providing module is further installed to communicate with the terminal of the maintenance company to reserve the maintenance of the smoke reduction filter and to transmit the failure history and the status information of the smoke reduction filter to the terminal of the maintenance company.

The smoke reduction filter failure diagnosis method of the present invention for achieving the above object, when the smoke reduction filter failure diagnosis that remotely diagnoses the failure of the smoke reduction filter mounted on the vehicle exhaust line to filter the smoke of the exhaust gas TM A system and method comprising the steps of: (a) detecting a temperature of exhaust gas introduced into a particulate filter and an inlet pressure of the particulate filter in a vehicle diagnostic apparatus; (b) comparing the detected temperature and pressure values with a set value to determine whether or not the smoke reduction filter has failed; (c) if a failure is determined in step (b), performing a visual or audio warning through a warning means of a self-diagnosis apparatus in a vehicle; (d) notifying the management server of the failure of the smoke reduction filter together with the vehicle information; (e) storing the failure history together with the vehicle information in the filter management database in the management server; And (f) notifying the occurrence of the failure of the smoke reduction filter to the member side portable terminal by SMS.

According to a preferred embodiment of the present invention, (g) receiving the position information of the vehicle from the self-diagnostic apparatus to determine the current position of the vehicle; (h) searching for nearby service providers corresponding to the current location of the vehicle; And (i) notifying geographic information of the searched maintenance companies to the member-side portable terminal.

According to a more preferred embodiment of the present invention, (j) a step of inquiring whether to use the maintenance company reservation service by communicating with the member-side portable terminal; (k) if the member selects the reservation service in step (j), communicating with the maintenance company terminal of the maintenance company selected by the member and making a reservation; And (l) transmitting a failure history and status information of the smoke reduction filter together with vehicle information to a terminal of the maintenance company.

According to the smoke reduction filter failure diagnosis system and method of the present invention, by detecting the temperature and the inlet pressure of the exhaust gas flowing into the smoke reduction filter to diagnose the unexpected failure of the smoke reduction filter, the smoke reduction filter in the remote management server By not only storing and managing the fault history, but also notifying the member's portable terminal, it is possible to prevent the vehicle output from being lowered or stopped due to unexpected failure of the smoke reduction filter, and to prevent air pollution due to the loss of the function of the smoke reduction filter. It can work.

In addition, according to the present invention, by collecting the location information of the vehicle from the GPS module of the self-diagnostic apparatus, based on the geographic information system to search the neighboring maintenance companies corresponding to the location of the vehicle to notify the member's portable terminal, By requesting a service provider's reservation service and notifying the service provider's failure history and status information of the soot reduction filter, the repair and replacement service can be provided more quickly.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and embodiments.

First, the present invention relates to a smoke reduction filter failure diagnosis system and method for remotely diagnosing a failure of a smoke reduction filter, in particular, a DPF mounted on an exhaust line of a diesel engine. Although not shown in the accompanying drawings, in the following description, "vehicle" refers to a vehicle equipped with a smoke reduction filter, and a "soot reduction filter" is not limited to the DPF but is mounted on an exhaust line of an engine and installed in exhaust gas. It may include other filter device to reduce the smoke.

1 is a block diagram schematically showing a smoke reduction filter failure diagnosis system of the present invention. Referring to this, the smoke reduction filter failure diagnosis system and method of the present invention, a self-diagnosis device 20 mounted on a vehicle for monitoring the failure of the smoke reduction filter 10, the self-diagnosis device 20 and a wireless network The server device 40 for remote communication through the 36, the member-side portable terminal 62 receiving the failure of the smoke reduction filter 10 from the server device 40, and the wired with the server device 40 It is composed of a plurality of maintenance company-side terminals (64) connected via a network (38).

The self-diagnostic device 20 is mounted on a vehicle and monitors the state of the smoke reduction filter 10. The self-diagnosis apparatus 20 includes a temperature sensor 22 and a pressure sensor 24 installed at the inlet of the particulate filter 10. The temperature sensor 22 detects the temperature of the exhaust gas introduced into the smoke reduction filter 10, and the pressure sensor 24 detects the pressure at the inlet side of the smoke reduction filter 10. The temperature value and the pressure value detected by the temperature sensor 22 and the pressure sensor 24 are input to the controller 26. The control unit 26 is composed of a microprocessor, and compares the input temperature value and the pressure value with a set value, and determines whether or not the smoke reduction filter 10 has failed. If the temperature value detected by the temperature sensor 22 exceeds the set value, the controller 26 generates a predetermined output signal, whereby the warning means 28 connected to the output terminal of the controller 26 is In operation, the vehicle driver is visually or audibly alerted to the occurrence of a failure of the particulate filter 10.

For example, the controller 26 has a temperature setting value of 350 ° C. and a pressure setting value of 400 mb as a setting value, and any one of the temperature value and the pressure value detected by the temperature sensor 22 and the pressure sensor 24 is set as the set value. When the set value is exceeded, it is regarded as a failure. If the temperature of the exhaust gas exceeds 350 ° C, this may cause breakage of the soot reduction filter 10. If the pressure on the inlet side of the smoke reduction filter 10 exceeds 400 mb, it means that the smoke is not filtered normally. Therefore, in such cases, it is necessary to repair or replace the soot reduction filter 10. Of course, the setting value of the control unit 26 may have a different value. Although not shown, the control unit 26 is connected to the key input means, the dedicated administrator can operate the key input means to change the set value. For example, the set value may be adjusted down in proportion to the use time of the smoke reduction filter 10.

The warning means 28 is mounted on the instrument panel of the vehicle and positioned at the driver's viewing angle. The warning means 28 is a display means or a buzzer, and two means may be provided at the same time. For example, the warning means 28 may be comprised of LEDs. In this case, the controller 26 may notify the failure of the smoke reduction filter 10 by driving the LED blinking. In addition, the warning means 28 may be constituted by an LCD. In this case, the control unit 26 may notify the failure of the smoke reduction filter 10 by displaying a warning message (such as "DPF replacement request", etc.) stored in advance on the LCD. When the LCD is used as the warning means 28, the control unit 26 may display the current temperature value and the pressure value of the smoke reduction filter 10 detected by the temperature sensor 22 and the pressure sensor 24 through the LCD. Can be. This may be able to monitor the state of the smoke reduction filter 10 in real time, it is possible to prevent the shortening of the life of the smoke reduction filter 10 due to driving habits such as sudden start or sudden braking. When the warning means 28 is a buzzer, the control unit 26 will warn the failure of the smoke reduction filter 10 by operating the buzzer a predetermined number of times.

On the other hand, the self-diagnostic apparatus 20 according to the present invention, in addition to the unexpected failure of the smoke reduction filter 10, the cumulative running distance of the smoke reduction filter 10 has elapsed 100,000 km, or smoke reduction as in the conventional monitoring device When the cumulative use time of the filter 10 has elapsed 10 months, the filter 10 may be operated to warn the maintenance or replacement of the smoke reduction filter 10. This cumulative running distance or cumulative usage time count will be reset when the soot reduction filter 10 is replaced.

As shown in FIG. 1, the self-diagnosis apparatus 20 includes a communication module 32 and a GPS module 34. The communication module 32 is a modulation and demodulation device such as a modem, and transmits the state information of the smoke reduction filter 10 output from the control unit 26 to the management server 50 of the server device 40 through the wireless network 36. do. At this time, as shown in Figure 1, the data packet transmitted from the communication module 32 is transmitted to the management server 50 via the wireless base station 30. The state information of the smoke reduction filter 10 includes vehicle information on which the smoke reduction filter 10 is installed, information on whether or not a smoke reduction filter 10 has occurred, a cumulative travel distance, and a cumulative use time. The GPS module 34 receives the current position information of the vehicle from the satellite, and the position information of the vehicle received from the GPS module 34 is also transmitted to the management server 50 through the communication module 32.

The server device 40 receives the state information of the smoke reduction filter 10 transmitted from the self-diagnosis device 20 through the wireless network 36, and carries the member side when the smoke reduction filter 10 fails. It includes a management server 50 for notifying the terminal 62 of this. To this end, the management server 50 is provided with a filter management database 52, a member management database 54, maintenance company management database 56, SMS sending module 42, maintenance company search module 44, maintenance company The geographic information notification module 46 and the reservation service providing module 48 are installed.

The filter management database 52 stores the vehicle information received from the self-diagnosis apparatus 20 and the state information and the failure history of the smoke reduction filter 10 in relation thereto. Therefore, by referring to the filter management database 52 in the management server 50, it is possible to determine the failure of the smoke reduction filter 10, and to manage the smoke reduction filter 10. The member management database 54 stores the personal information of the member and the telephone number of the member-side mobile terminal 62. A member is a person registered on a site operated by the management server 50 through an online registration process, and may be a vehicle owner or a vehicle driver. The maintenance company management database 56 stores maintenance company related information including geographic information of the maintenance company. Therefore, referring to the maintenance company management database 56 in the management server 50, it is possible to search for nearby maintenance companies corresponding to the location information of the vehicle, it is possible to provide the maintenance company geographic information to the member side.

When the SMS sending module 42 receives the failure information of the smoke reduction filter 10 from the self-diagnostic apparatus 20, the SMS transmission module 42 transmits a failure message of the smoke reduction filter 10 to the member side portable terminal 62 in a text message. It is a means to. The SMS sending module 42 acquires vehicle information by analyzing a data packet received by the management server 50 when a smoke reduction filter 10 malfunctions, and the owner or driver of the vehicle in the member management database 54. The member information of the member and the phone number of the member-side mobile terminal 62 are searched. When the phone number of the member's mobile terminal 62 is found, the phone number is designated as the called number and a short message is transmitted through the wireless network 36 (for example, "cause a serious failure in your DPF. Need replacement promptly."). Same). Then, the short message is received through the wireless base station 30 to the member-side mobile terminal 62.

As such, the management server 50 notifies the member side portable terminal 62 of the occurrence of the failure of the smoke reduction filter 10 by the SMS, thereby preventing the vehicle driver from confirming the warning of the self diagnosis device 20 in the vehicle. In case of forgetting or forgetting, it is possible to more reliably warn the failure situation and the severity of the smoke reduction filter 10.

The smoke reduction filter failure diagnosis system of the present invention is not limited to SMS notification of a failure situation of the smoke reduction filter 10 to a member-side portable terminal 62, and the maintenance company geographic information and the maintenance company reservation service near the current location of the vehicle. To provide.

The maintenance company search module 44 searches for information of nearby maintenance companies in response to the location information of the vehicle received from the self-diagnosis apparatus 20, and the maintenance company geographic information notification module 46 is a maintenance company search module ( It is a means for notifying the member side portable terminal 62 of the geographic information of the maintenance companies retrieved in (44). For this purpose, the geographic information of the maintenance companies is stored in the maintenance company management database 56 in relation to the maintenance company information such as the name, size, website address of the maintenance companies. The maintenance company search module 44 searches for the maintenance company management database 56 in response to the location information of the vehicle extracted by the GPS module 34 of the self-diagnostic apparatus 20, and performs some maintenance close to the current position of the vehicle. Extract vendor information. Then, the maintenance company geographic information notification module 46 notifies the member side portable terminal 62 of the extracted maintenance company geographic information. At this time, the member-side portable terminal 62 is provided with a known navigation system, it is preferable that the geographic information of the maintenance companies are displayed by the navigation system provided in the member-side portable terminal 62.

The reservation service providing module 48 selectively provides a service provider reservation service at the request of a member. To this end, the smoke reduction filter failure diagnosis system of the present invention further comprises a maintenance company terminal 64 connected to the management server 50 and the wireless network 36 or the wired network 38. The reservation service providing module 48 first communicates with the mobile terminal 62 of the member to inquire whether or not to receive a reservation service. For the reservation service, the management server 50 and the member-side mobile terminal 62 may communicate by using a short message, or may communicate through an Internet chat. The member selects one maintenance company arbitrarily from among the maintenance companies notified to the member-side mobile terminal 62, and selects a reservation time and the like. Then, the reservation service providing module 48 communicates with the maintenance company side terminal 64 of the maintenance company selected by the member to reserve the maintenance of the smoke reduction filter 10. At this time, the reservation service providing module 48 notifies the portable terminal 62 of the member side that the reservation is successfully made, and the terminal 64 of the maintenance company, together with the vehicle information, shows the failure history of the smoke reduction filter 10 together with the vehicle information. By sending status information, faster diagnostic and maintenance services are provided.

2 is a flowchart illustrating a method for diagnosing a smoke reduction filter according to the present invention. Referring to this, a description will be given of the smoke reduction filter failure diagnosis method operating based on the system of the present invention described above. On the other hand, since the process of subscribing to the website operated by the management server 50 by the member side who purchased the smoke reduction filter 10 is the same as the normal website joining process, a detailed description thereof will be omitted.

The temperature sensor 22 and the pressure sensor 24 of the self-diagnostic apparatus 20 mounted in the vehicle detect the temperature of the exhaust gas introduced into the smoke reduction filter 10 and the inlet pressure of the smoke reduction filter 10. The sequence starts with (ST100). The control unit 26 of the self-diagnostic apparatus 20 determines whether the smoke reduction filter 10 is broken by comparing the detection values input from the temperature sensor 22 and the pressure sensor 24 with the set values (ST105). If it is determined that a failure has occurred in the step ST105, the control unit 26 operates the warning means 28 to warn visually or audibly the occurrence of the failure of the soot reduction filter 10 (ST110). As mentioned above, the warning means 28 is a display means such as an LED or LCD or an acoustic warning device such as a buzzer or the like. In addition, the controller 26 notifies the management server 50 of the occurrence of the failure of the smoke reduction filter 10 together with the vehicle information (ST115).

When the management server 50 receives failure occurrence information of the smoke reduction filter 10 through the wireless network 36, the management server 50 stores the failure history together with the vehicle information in the filter management database 52 (ST120). Thereafter, the SMS sending module 42 searches the member management database 54 to extract the phone number of the member-side mobile terminal 62, and designates the extracted phone number as a destination to troubleshoot the smoke reduction filter 10. Notify sends a text message (ST125). The smoke reduction filter failure diagnosis method of the present invention may be terminated by notifying the failure reduction filter 10 of the SMS sending module 42 to the member-side portable terminal 62. However, preferably, the member side portable terminal 62 further has steps for informing geographic information of maintenance companies near the vehicle and acting as a reservation service.

The management server 50 has a step (ST130) of determining the location of the vehicle in order to provide information on the neighboring maintenance companies corresponding to the location information of the vehicle to the member side. Positioning of the vehicle, the vehicle position information extracted from the GPS module 34 of the self-diagnostic apparatus 20 by the request of the management server 50 or periodically by the self-diagnostic apparatus 20 the position information of the vehicle By notification. When the location of the vehicle is determined, the maintenance company search module 44 searches the maintenance company management database 56 to search for maintenance companies near the current location of the vehicle (ST135). When some maintenance companies are searched in the maintenance company search module 44, the maintenance company geographic information notification module 46 notifies the member side portable terminal 62 of the retrieved maintenance companies geographic information (ST140). At this time, it is preferable that the navigation system is provided in the member side portable terminal 62, and the geographic information of the notified maintenance companies is displayed through the navigation system of the member side portable terminal 62.

Thereafter, the reservation service providing module 48 of the management server 50 communicates with the member-side mobile terminal 62 and inquires whether to receive a service provider reservation service (ST145). When the member selects the reservation service in the step ST145, the member of the maintenance company and the reservation time are referred to, and the maintenance company reserves the maintenance of the smoke reduction filter 10 by communicating with the terminal 64 of the maintenance company (ST150). . If the reservation with the maintenance company is not completed, steps ST145 to ST150 may be repeated. If the reservation is successfully made, the reservation service providing module 48 notifies the mobile terminal 62 of the member of the reservation successful, and the terminal 64 of the maintenance company, together with the vehicle information, shows the failure history of the smoke reduction filter 10 together with the vehicle information. Status information is transmitted (ST155). Through this step (ST155), the diagnosis of the failure and the state of the smoke reduction filter 10 can be made more quickly, thereby providing a repair and replacement service of the smoke reduction filter 10 more quickly.

As described above, the smoke reduction filter failure diagnosis system and method of the present invention detects the inlet temperature and the pressure of the smoke reduction filter 10 in the self-diagnosis apparatus 20 mounted in a vehicle to predict the smoke reduction filter 10. Diagnose faults. The failure information detected by the self-diagnosis apparatus 20 is transmitted to the management server 50 through the wireless network 36 in real time, and the management server 50 is the smoke reduction filter 10 to the member-side portable terminal 62. SMS notification of the failure, so that members can more surely recognize the failure of the smoke reduction filter (10). This provides the advantage that the vehicle owner or driver can quickly cope with unexpected failures other than the periodic replacement of the smoke reduction filter 10.

Another advantage of the present invention is that the GPS module 34 of the self-diagnostic apparatus 20 extracts the current position of the vehicle, and the management server 50 provides geographic information of the maintenance companies corresponding to the current position of the vehicle. Is in. Therefore, members can be provided with a faster repair and replacement service from a nearby maintenance company based on the geographic information provided from the management server (50).

Still another advantage of the present invention is that the management server 50 communicates with the member-side mobile terminal 62 and the maintenance company-side terminal 64 to make a reservation for the maintenance service of the smoke reduction filter 10. The reservation service is provided so that the member does not spend much time for the maintenance of the smoke reduction filter 10, and visits the maintenance company at the time of reservation to receive the maintenance service immediately. First of all, while the management server 50 acts as a reservation service, by sending the failure history and status information of the smoke reduction filter 10 to the maintenance company terminal 64, the maintenance company of the smoke reduction filter 10 This enables more accurate and quick diagnosis of fault history and status, which reduces unnecessary waste of time and provides faster and more efficient maintenance services.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

1 is a block diagram showing a smoke reduction filter failure diagnosis system according to the present invention

2 is a flow chart showing a method for diagnosing smoke reduction filter failure according to the present invention.

<Explanation of symbols for main parts of the drawings>

10: Soot reduction filter 20: Self diagnosis device

22: temperature sensor 24: pressure sensor

26 control unit 28 warning means

30: wireless base station 32: communication module

34: GPS module 36: wireless network

38: wired network 40: server device

42: SMS sending module 44: maintenance company search module

46: service provider geographic information notification module 48: reservation service provider module

50: management server 52: filter management database

54: member management database 56: maintenance company management database

62: member mobile terminal 64: maintenance company terminal

Claims (6)

In the smoke reduction filter failure diagnosis system mounted on the exhaust line of the vehicle for remotely diagnosing the failure of the smoke reduction filter 10 for filtering the smoke of the exhaust gas, A temperature sensor 22 for detecting the temperature of the exhaust gas input to the smoke reduction filter 10, a pressure sensor 24 for detecting the inlet pressure of the smoke reduction filter 10, and the temperature sensor 22. ) And a control unit 26 for determining whether the smoke reduction filter 10 has failed by comparing the detected value of the pressure sensor 24 with the set value, and installed in the vehicle to the driver according to the output of the control unit 26. Self-diagnosis apparatus comprising a warning means 28 for visually or audibly warning the failure state of the smoke reduction filter 10, and a communication module 32 for remotely transmitting the status information of the smoke reduction filter 10 ( 20); And It is connected to the self-diagnosis device 20 and the wireless network 36, and receives the state information of the smoke reduction filter 10 from the self-diagnosis device 20, when the smoke reduction filter 10 is broken, the member-side portable terminal ( 62, a management server 50 for notifying this to the filter server, a filter management database 52 provided in the management server 50 and storing state information and a failure history of the smoke reduction filter 10 in relation to vehicle information; A member management database 54 provided in the management server 50 and storing member personal information including a phone number of the member-side mobile terminal 62, and installed in the management server 50 and the self-diagnostic apparatus 20 Receiving the failure information of the smoke reduction filter 10 from the server device 40 including an SMS sending module 42 for transmitting the failure occurrence of the smoke reduction filter 10 in a text message to the member-side portable terminal 62 Soot reduction filter failure, characterized in that consisting of However the system. The method of claim 1, The self-diagnosis apparatus 20 is provided with a GPS module 34 for extracting the current position information of the vehicle, The server device 40 is provided with a maintenance company management database 56 for storing the maintenance company-related information, including geographic information of the maintenance company, received from the self-diagnosis device 20 when the smoke reduction filter 10 failure occurs The maintenance company search module 44 for searching for maintenance companies near the current location of the vehicle in the maintenance company management database 56 corresponding to the position information of the vehicle, and the geographic information of the searched maintenance companies on the member's mobile terminal 62. Soot reduction filter failure diagnosis system, characterized in that the information supplier geographic information notification module 46 to be notified. The method of claim 2, The server device 40 further comprises a terminal 64 for the maintenance company connected to the wireless or wired network 38, The server device 40 communicates with the member side portable terminal 62 to receive a reservation request from the member side, and communicates with the maintenance company side terminal 64 to reserve the maintenance of the smoke reduction filter 10 and to provide vehicle information and information. The smoke reduction filter failure diagnosis system, characterized in that the reservation service providing module 48 for transmitting the failure history and status information of the smoke reduction filter 10 to the maintenance company terminal 64 is further installed. In the smoke reduction filter failure diagnosis method for remotely diagnosing the failure of the smoke reduction filter (10) mounted on the vehicle exhaust line and filtering the smoke of the exhaust gas, Detecting the temperature of the exhaust gas introduced into the smoke reduction filter 10 and the inlet pressure of the smoke reduction filter 10 in a self-diagnostic apparatus 20 mounted in a vehicle (ST100); Comparing the detected temperature and pressure values with the set values to determine whether the smoke reduction filter 10 is broken (ST105); If a failure is determined in the step ST105, performing a visual or audio warning through the warning means 28 of the in-vehicle self-diagnosis apparatus 20 (ST110); Notifying the management server 50 of failure of the smoke reduction filter 10 together with the vehicle information (ST115); Storing a failure history together with vehicle information in the filter management database 52 at the management server 50 (ST120); And And SMS notification of the occurrence of the failure of the smoke reduction filter (10) to the member-side portable terminal (62). The method of claim 4, wherein Receiving location information of the vehicle from the self-diagnostic apparatus 20 to determine the current position of the vehicle (ST130); Searching for nearby maintenance companies corresponding to the current location of the vehicle (ST135); And And a step (ST140) of notifying the retrieved geographic information of the maintenance companies to the member-side mobile terminal (62). The method of claim 5, Inquiring whether to use the maintenance company reservation service by communicating with the member-side mobile terminal 62 (ST145); When the member selects the reservation service in step ST145, communicating with the maintenance company-side terminal 64 of the selected maintenance company and acting on behalf of the reservation (ST150); And And transmitting the vehicle information and the state information of the smoke reduction filter (10) to the maintenance company side terminal (64).

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