KR20080040936A - Apparatus and method of car diagnosis service using telematics - Google Patents

Abstract

An apparatus and a method of car diagnosis service using telematics are provided to take car maintenance service at the time reserved by a driver through a wireless communication. An apparatus of car diagnosis service comprises a telematics terminal device(20), a GPS satellite(30), a mobile communication network(50), a car management service center(60) and a car service part(70). The telematics terminal device having a car management database receives car information from a CAN(Controller Area Network) communicating unit, and compares the car information with reference data to determine a state of a car, and creates a car diagnosis message so as to require service. The car management service center is connected with the telematics terminal device through mobile communication, receives the car diagnosis message, connects the service required by the car, and offers the position data of the car to a terminal device of a mobilization car. The car service part receives the car diagnosis message, finds out causes of malfunction, and offers maintenance service reservation, emergency traction and mobilization service.

Description

Apparatus and method of car diagnosis service using telematics}

1 is a block diagram of a vehicle diagnostic service apparatus using the telematics of the present invention.

2 is a block diagram of a telematics terminal for processing a vehicle diagnostic service.

3 shows an example of a vehicle diagnostic database of the present invention.

Figure 4 is a flow chart for providing a vehicle diagnostic service using the telematics of the present invention.

The present invention relates to telematics, and in particular, various state information of a vehicle is received and stored in a telematics terminal, and the recorded vehicle state information is compared with the reference data of the vehicle to determine and provide a screen of the telematics terminal when an abnormality occurs. The present invention relates to a vehicle diagnostic service apparatus and method using telematics for requesting emergency maintenance or emergency dispatch service.

In general, a vehicle telematics terminal detects a vehicle accident or theft of a vehicle by combining a mobile communication method, a location tracking method, and the Internet, guides a vehicle driving route, and provides various other information to a vehicle driver. to be. A vehicle telematics system is a system that provides information through a vehicle based on GPS using mobile communication and Global Positioning System (GPS) satellites.

In the inspection of the conventional vehicle, the maintenance technician opened the bonnet and directly inspected and repaired the vehicle such as engine state, oil state, mission oil, and the like.

In the inspection of such a vehicle, the driver visited a maintenance agent in consideration of the timing of replacing the engine oil of the vehicle and replaced the engine oil. This type of inspection is usually done by visiting the mechanic after determining the maintenance time of the driver's vehicle, etc., which may cause unnecessary maintenance or delay the maintenance of the vehicle, causing damage to the vehicle. There is a problem.

In addition, if a breakdown occurs while driving the vehicle and requires maintenance or towing, it is not easy for the driver to respond immediately.

The present invention is to solve the above-mentioned problems, an object of the present invention is to receive and store the status of the vehicle parts, replacement information from the CAN communication unit installed in the vehicle and store it in the vehicle management database, and compare and determine with the reference data of the vehicle Diagnose the failure of the vehicle and if necessary, use the telematics terminal to access the service center by mobile communication and send the status message of the vehicle.If necessary, request the towing request, emergency service or maintenance reservation. An object of the present invention is to provide an apparatus and method for diagnosing a vehicle using telematics.

The apparatus of the present invention for achieving the above object, the vehicle management database is installed, the vehicle information is received from the CAN communication unit and recorded in the vehicle management database and compared with the reference data to determine whether the vehicle abnormality and vehicle diagnosis A telematics terminal generating a message and requesting a service if necessary, and connected to the telematics terminal through mobile communication to receive the vehicle diagnosis message, connect a service requested by the vehicle, and provide location information of the vehicle to a terminal of a mobile vehicle; And a vehicle service unit for receiving a vehicle diagnosis message from the vehicle management service center, determining a cause of the failure of the vehicle, and providing a maintenance reservation, emergency towing, and dispatch service requested by a driver. It is done.

In another device of the present invention for achieving the above object, the telematics terminal is optical communication with the internal units of the vehicle to receive and provide the current state information of the vehicle, and the current state information of the vehicle provided by the CAN communication unit Converts and provides data suitable for MOST communication, and converts and receives the data transmitted to the CAN communication unit and converts to meet the CAN protocol, and receives and stores the current state information of the vehicle, and the maintenance reference data of the vehicle And a storage unit configured to compare the current state information of the vehicle, which is periodically received by the storage unit, and a maintenance reference data of the vehicle, to determine whether there is an abnormality. Generate vehicle diagnostic messages, provide vehicle location information, and wirelessly request service A telematics control unit, a wireless communication unit which provides the vehicle diagnostic message and the vehicle position information through mobile communication to request a maintenance or emergency towing service, and displays a current situation on the screen when a vehicle abnormality occurs under the control of the telematics control unit. And a display unit for displaying and providing a service request screen and a navigation unit for receiving and processing position information of the vehicle and providing the received telematics control unit.

The method of the present invention for achieving the above object, one step of receiving the vehicle information from the CAN communication unit of the vehicle and recording and storing the vehicle information in the vehicle management database of the telematics terminal in the most communication, vehicle information and reference recorded in the vehicle management database Comparing the data and judging it, the process of creating a vehicle diagnostic message is required in the case of maintenance, and the process of displaying the screen when requesting maintenance and requesting service, and the driver requesting maintenance reservation, emergency dispatch, and towing service. If the vehicle diagnostic message is provided to the vehicle management service center through the mobile communication, the vehicle management service center provides the vehicle diagnosis message to a service processor to identify an abnormal part of the vehicle and sends it to the telematics terminal of the dispatched vehicle. 5 process of continuously providing the location information of the vehicle Characterized in that.

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

It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted.

The present invention manages a vehicle by using telematics, and periodically receives and stores vehicle data from a controller area network (CAN) communication unit, and compares and compares the vehicle data with reference data. When requested, the vehicle diagnostic service apparatus and method using telematics to be connected to the vehicle management service center wirelessly to the telematics terminal to immediately request and repair the corresponding service.

1 is a block diagram of a vehicle diagnostic service apparatus using the telematics of the present invention.

1 shows a telematics terminal 20, a GPS satellite 30, a mobile communication network 50, a vehicle management service center 60, and a vehicle service unit 70 provided in a vehicle.

The vehicle service unit 70 includes a vehicle maintenance processing unit 72, a dispatch service processing unit 74, and a towing processing unit 76.

The telematics terminal 20 provided in the vehicle of the present invention includes a vehicle management database, and receives and stores state information of various vehicles provided by a controller area network (CAN) using MOST (Media Oriented System Transfort) communication. When the abnormality occurs, when the abnormality occurs, the telematics terminal 20 wirelessly connects to the telematics service center 60 to request the vehicle service unit 70 for maintenance and to process the reservation.

The telematics terminal 20 is wirelessly connected to the mobile communication network 50 for communication, and the mobile communication network includes a base station, a base station controller, a mobile communication switching center, and the like.

When the service is requested from the telematics terminal 20, the telematics service center 60 of the present invention grasps a breakdown of the vehicle in the received vehicle diagnostic message, and provides a service request message of the driver to the vehicle service unit 70. Provides towing and dispatch services and handles maintenance appointments.

When the vehicle maintenance processing unit 72 requests a maintenance reservation of the vehicle through the telematics service center 60, the vehicle maintenance processing unit 72 processes the reservation. At this time, the vehicle maintenance message received from the vehicle based on the vehicle management database is received and the maintenance contents of the vehicle are received. It can be grasped so that the vehicle can be serviced immediately when it is visited.

Maintenance reservations can be made at the repair shop you want to visit. If you need urgent service, you can make a reservation by selecting a service shop near your current vehicle location.

When the vehicle stops through the telematics service center 60 and receives an emergency dispatch maintenance request, the dispatch service processing unit 74 receives a required maintenance content of the corresponding vehicle as a message and dispatches the dispatch service. Since the dispatcher continues to receive the location information of the broken vehicle through the telematics terminal from 60), the vehicle can be found and maintained in a short time. Mobile service can be caused by various reasons such as gasoline provision or battery charging.

In addition, the towing processing unit 76 receives the vehicle diagnosis message described above when the vehicle is urgently towed through the telematics service center 60, and drives the tow vehicle, and the towing vehicle continuously from the telematics service center 60. Provides fast service by receiving location information of a faulty vehicle from a telematics terminal or the like.

The present invention described above is provided with a vehicle management database in the telematics terminal 20 provided in the vehicle, and the oil amount, mileage, speed, fuel economy, battery, engine oil, coolant, tire, air conditioner, etc. provided by the CAN communication unit Receive and store the status information of various vehicles through MOST (Media Oriented System Transfort) communication, compare and judge the reference data and the received data, and when maintenance or towing is required, the telematics service center 60 using the telematics terminal 20 ) Can be connected wirelessly to request for maintenance or dispatch service.

2 is a block diagram of a telematics terminal mounted on a vehicle to process a diagnostic service.

In FIG. 2, the telematics control unit 80, the CAN communication unit 82, the conversion unit 84, the comparison determination unit 86, the wireless communication unit 88, the display unit 90, the storage unit 92, and the reference data unit ( 93, the vehicle data section 96, the navigation section 98, the GPS receiver 100, the location information processing section 102, and the map data section 104 are shown.

The CAN communication unit 82 includes a transmission control unit (TCU) and an electronic control unit that provide information such as driving speed, oil level, fuel flow rate, door condition, air conditioner, air bag, battery, tire, and other electronic components. Optical communication with the internal electronic units of the vehicle such as an electric control unit (ECU) is performed to receive and provide the current state information of the vehicle to the conversion unit 84.

The converting unit 84 converts and receives data received from the CAN communication unit 82 for MOST communication, and converts and provides data provided from the telematics control unit 80 to conform to the protocol of the CAN communication unit 82. .

The telematics control unit 80 is provided with a comparison determination unit 86 that determines whether the vehicle is abnormal based on the vehicle management database, and the telematics control unit 80 refers to the vehicle management database to request a service diagnosis message. Create and provide.

The wireless communication unit 88 provides a vehicle diagnosis message, location information of the vehicle, and request service information through mobile communication with the vehicle management service center 60 to process a request for maintenance or emergency towing service.

The display unit 90 displays a screen under the control of the telematics control unit 80, and when a vehicle abnormality occurs, the display unit 90 displays the current situation so that the driver can cope with the problem.

The storage unit 92 stores the vehicle management database in the vehicle data unit 96, records and stores information of the vehicle received by the telematics control unit 80, and the reference data unit 94 stores reference data necessary for vehicle management. It stores and provides, and the comparison determination unit 86 of the telematics control unit 80 periodically determines whether the vehicle is abnormal from the vehicle information stored in the storage unit 92, and determines whether the driver is abnormal or normal through the display unit To provide.

The navigation unit 98 includes a GPS receiver 100, a location information processor 102, and a map data unit 104, and the GPS receiver 100 includes respective position signals from at least three or more GPS satellites 30 and Receive absolute time signals.

The location information processing unit 102 receives the location information through the GPS receiver 17 under the control of the telematics control unit 80, and receives map data of a predetermined area corresponding to the location information from the map data unit 104. The matching process is performed, and the telematics control unit 80 displays the map data on which the current vehicle location and route are matched through the display unit 90.

As described above, in the present invention, when the CAN communication unit 80 receives and provides current vehicle state information, the conversion unit 84 converts the vehicle state information suitable for MOST communication and provides the telematics control unit 80. The telematics control unit 80 periodically records the data in the vehicle data unit 96 of the storage unit 92 storing the vehicle management database.

For example, when receiving and storing information about the engine oil, the reference data unit 94 stores and provides reference data about the engine oil of the vehicle, and the comparison determination unit 86 of the telematics control unit 80 includes the reference data unit ( By using the data of 94 and the data of the vehicle data unit 96, it is determined whether the vehicle is abnormal or a failure part.

When the comparison determination unit 86 detects an abnormality of the vehicle, the telematics control unit 80 generates a vehicle diagnosis message using the information determined by the comparison determination unit 86, and, when the service request is made, the vehicle diagnosis message is generated. It is also provided along with the vehicle's fault information to the service person or service center to cope with.

As described above, the telematics control unit 80 displays the vehicle through the display unit 90 when an abnormality occurs in the vehicle, and the vehicle through the wireless communication unit 88 when the driver requests an emergency towing or maintenance reservation. Access to the management service center 60, and transmits the generated vehicle information message to request the maintenance reservation, dispatch service, emergency towing service of the vehicle, at this time by continuously providing the location information of the vehicle to receive the service easily .

3 is a diagram illustrating an example of a vehicle diagnostic database of the present invention.

3 shows a vehicle in which the CAN communication unit 82 records and stores data received by optical communication with internal units of a vehicle such as a transmission control unit (TCU) and an electronic control unit (ECU) of the vehicle. This is an example of a diagnostic database.

The items represent items such as batteries, engine oil, airbags, doors, air conditioners, tires, generators, and the like. Tables are provided to determine whether normal operation, reference data, consumption, replacement time, etc. are provided.

The reference data may be stored and used in the reference data unit 94 of the storage unit.

The telematics control unit 80 generates a vehicle diagnosis message determined based on the vehicle diagnosis database and provides the message together with the service request, so that the vehicle management service center and the vehicle service unit can determine the cause of the failure.

Figure 4 is a flow chart for providing a vehicle diagnostic service using the telematics of the present invention.

In step 501, the CAN communication unit 82 receives vehicle information from an internal unit of a vehicle such as a transmission control unit (TCU) or an electronic control unit (ECU) of the vehicle and transmits the vehicle information to the conversion unit 84. The conversion unit provides a conversion in a form suitable for MOST communication, and in step 503, the telematics control unit 80 records and stores vehicle information in a vehicle database of the vehicle data unit 96 provided in the storage unit 92. .

In operation 505, the telematics control unit 80 periodically compares the information of the vehicle database with the reference data stored in the reference data unit 94 to determine whether the vehicle is operating normally, and determines whether the vehicle operates normally. 86) compares the reference data with the accumulated vehicle data to determine whether an abnormality has occurred, and informs the driver of the result through the display unit.

As a result of the comparison, if the current vehicle operates normally, steps 501 to 505 are repeated.

If an abnormality is detected in the vehicle by the comparison determination unit 86 in step 507, the telematics control unit 80 informs the display unit 90 in a message or a screen for the driver to grasp.

In addition, if it is determined in step 507 that the general determination such as replacement of engine oil of the vehicle or supply of cooling water is necessary in step 507, the telematics control unit 80 displays a screen on the display unit 90 and informs the user. If the driver inputs and selects a reservation time or the like at a nearby maintenance shop or a frequent maintenance shop, the telematics control unit 80 generates a vehicle diagnostic message and provides the vehicle management service center 60 through the wireless communication unit 88. do.

The vehicle management service center 60 grasps a vehicle diagnosis message and a request service, provides a vehicle information message to the vehicle maintenance processing unit 72, and processes a reservation, and the vehicle maintenance processing unit 72 preconceives a failure occurrence portion of the vehicle in advance. The driver can visit and repair the vehicle at step 513.

In addition, if it is determined in step 515 that the battery is discharged or oiling is required in the comparison determination unit 86 and the emergency dispatch service is in need of maintenance, the telematics control unit 80 displays the notification on the screen on the display unit 90, and in step 517. When the driver requests the emergency dispatch service, the telematics control unit 80 generates a vehicle diagnosis message and provides the vehicle diagnosis message to the vehicle management service center 60 through the wireless communication unit 88.

The vehicle management service center 60 grasps the cause of the failure of the vehicle from the vehicle diagnosis message and makes an emergency dispatch to the near dispatch service unit 72 in step 519. At this time, the vehicle management service center 60 is a telematics terminal of the emergency dispatch vehicle. By providing the location information of the faulty vehicle, such as to find the vehicle of the driver who requested the service in a short time.

In addition, if it is determined in step 521 that the emergency determination of the vehicle is necessary by the comparison determination unit 86, the telematics control unit 80 displays the notification on the display unit 90, and when the driver selects the emergency maintenance service in step 523 The telematics control unit 80 generates a vehicle diagnosis message and provides the vehicle diagnosis message to the vehicle management service center 60 through the wireless communication unit 88.

The vehicle management service center 60 grasps the request of the emergency maintenance service, provides a vehicle diagnosis message to the nearest maintenance shop from the location information of the troubled vehicle, and makes a reservation, so that the driver visits the reserved maintenance shop immediately and performs maintenance. Make sure you get services.

In addition, if it is determined in step 525 that the comparison determination unit 86 requires the towing of the vehicle, the telematics control unit 80 displays the information on the display unit 90 and informs the user. The controller 80 provides the vehicle management service center 60 through the wireless communication unit 88.

The vehicle management service center 60 grasps the request of the towing service and provides the vehicle diagnostic message and location information to the towing processor 76 to tow the faulty vehicle, and the towing vehicle for emergency towing is the vehicle as described above. By continuously receiving the location information provided by the management service center 60 to be able to tow the vehicle of the service requester immediately.

The present invention described above manages a vehicle using telematics, and periodically receives and stores vehicle data from a controller area network (CAN) communication unit using MOST communication, and compares and compares the vehicle data with reference data. When maintenance is required or a service such as emergency towing is requested, the vehicle diagnostic service apparatus and method using telematics are connected to the vehicle management service center wirelessly so that the service can be requested and repaired immediately.

In addition, the vehicle management database of the present invention allows the driver to visually grasp the current state of the vehicle through the display unit 90 when the driver desires the vehicle. Allow management.

As mentioned above, the present invention diagnoses and manages a vehicle using a telematics terminal mounted on the vehicle, and when a maintenance service is required, wirelessly makes reservations and visits a maintenance shop at a desired time to receive a vehicle maintenance. .

In addition, emergency towing or dispatch service can be requested and received when necessary, so that even if the driver has no doubt about the maintenance of the vehicle, it is very easy to manage the vehicle.

So far, the configuration and operation of the embodiment of the present invention have been described. The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the technical idea of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments as well as the claims.

Claims (10)

A telematics terminal that installs a vehicle management database, receives vehicle information from the CAN communication unit, records the information in the vehicle management database and compares the reference data to determine whether there is a problem with the vehicle, and generates a vehicle diagnostic message to request service if necessary; ; A vehicle management service center connected to the telematics terminal through mobile communication to receive the vehicle diagnosis message, connect a service requested by the vehicle, and provide location information of the vehicle to a terminal of a vehicle; And a vehicle service unit configured to receive the vehicle diagnosis message at the vehicle management service center, determine a cause of the failure of the vehicle, and control to provide a maintenance reservation, emergency towing, and dispatch service requested by a driver. Diagnostic service device. The method of claim 1, The vehicle service unit, A vehicle maintenance processing unit which receives the reservation maintenance service request from the vehicle management service center and provides the vehicle diagnosis message to a maintenance shop selected by a driver to identify an abnormal part of the vehicle and perform reservation processing; A dispatch service processing unit for receiving and providing the location information of the vehicle to the telematics terminal mounted on the dispatch vehicle when the dispatch service request is made by the vehicle management service center; When the vehicle management service center requests the towing service vehicle diagnostics using a telematics comprising a towing processing unit for receiving and providing the position information of the vehicle to the telematics terminal mounted on the towing vehicle at the vehicle management service center Service device. The method according to claim 1 or 2, And the dispatch service processor receives the vehicle diagnostic message to determine a cause of a failure of the vehicle. The method according to claim 1 or 2, And the traction processor receives the vehicle diagnostic message to determine a cause of a failure of the vehicle. The method of claim 1, The telematics terminal, A CAN communication unit optically communicating with internal units of the vehicle to receive and provide current state information of the vehicle; A conversion unit for converting and providing data of the current state information of the vehicle provided by the CAN communication unit to be suitable for MOST communication, and receiving and transmitting data transmitted to the CAN communication unit to conform to the CAN protocol; A storage unit which receives and stores current state information of the vehicle and records and provides maintenance reference data of the vehicle; A comparison determination unit for comparing the current state information of the vehicle periodically received from the storage unit with the maintenance reference data of the vehicle to determine whether there is an abnormality is provided, and generates a vehicle diagnostic message according to the determination result of the comparison determination unit, A telematics control unit providing location information of the vehicle and wirelessly controlling a request for service; A wireless communication unit for providing a vehicle diagnosis message and location information of the vehicle through mobile communication and processing a request for maintenance or emergency towing service; A display unit which displays a current situation on a screen and provides a service request screen when a vehicle abnormality occurs under the control of the telematics controller; And a navigation unit configured to receive and process location information of the vehicle and provide the navigation information to the telematics control unit. The method according to claim 1 or 5, And the CAN communication unit receives and provides current state information of the vehicle from a shift control unit and an electronic control unit. The method of claim 5, The storage unit stores a vehicle management database to record and store vehicle information received through the CAN communication unit; And a reference data unit configured to store and provide reference data for determining whether the vehicle is in a normal state. Receiving the vehicle information from the CAN communication unit of the vehicle and recording and storing the vehicle information in the vehicle management database of the telematics terminal through most communication; Comparing the vehicle information recorded in the vehicle management database with reference data to determine and generate a vehicle diagnostic message when maintenance is required; A process of requesting service by displaying a screen when the maintenance is necessary; Four steps of providing the vehicle diagnosis message to the vehicle management service center through mobile communication when the driver requests a maintenance reservation, emergency dispatch, towing service, and the like; The vehicle management service center includes five processes of providing the vehicle diagnosis message to a service processor to identify an abnormal part of the vehicle and continuously providing location information of the vehicle to a telematics terminal of a moving vehicle. Vehicle diagnostic service method using. The method of claim 8, The above five steps, The service processor registering and maintaining a maintenance reservation at a desired maintenance shop when the requested service is a maintenance reservation service and providing the vehicle diagnosis message; And the service processing unit receiving location information of the vehicle that has failed in the vehicle management service center in the vehicle management service center and providing it to the telematics terminal of the dispatch vehicle when the requested service is an emergency dispatch or a towing service. Vehicle diagnostic service method using telematics. The method according to claim 8 or 9, The telematics terminal of the dispatching vehicle is connected directly to the vehicle management service center to receive location information of the vehicle where a failure has occurred.

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