JP2003160036A - Information display method of vehicle information system - Google Patents

Abstract

(57) [Summary] [Problem] To provide an information display method of a vehicle information system for automatically notifying a occupant of a vehicle of maintenance information as needed after a user browses general information. SOLUTION: When transmitting a request signal of general information desired by an occupant of a vehicle 2 from a vehicle 2 to an information center 1, together with basic vehicle information such as a user's address, name, age and the like, a vehicle-mounted sensor and a vehicle-mounted sensor are mounted. The maintenance data of the vehicle 2 calculated based on the information obtained from the control units is transmitted to the information center 1 at the same time. On the other hand, the information center 1 stores and analyzes the received vehicle information, creates maintenance information for instructing the vehicle 2 to perform optimal maintenance, and transmits it to the vehicle 2 together with the requested general information. Then, in the vehicle 2 having acquired the maintenance information, the general information desired by the occupant of the vehicle 2 is displayed on the display unit, and then the maintenance information received from the information center 1 is automatically displayed on the display unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display method of a vehicle information system which provides vehicle maintenance information.

[0002]

2. Description of the Related Art Conventionally, an in-vehicle terminal capable of information communication is used to transmit vehicle information such as a failure diagnosis result of a vehicle having a self-diagnosis function and a result of monitoring the life of parts to an information center server system. There is known an information providing system that receives notification of various maintenance information from the company. In this system, the user of the vehicle-mounted terminal performs an operation of transmitting vehicle information to the server and receiving maintenance information corresponding thereto. Further, there is also known a system for receiving general information such as a weather forecast and a traffic jam condition of a road from an information center using an in-vehicle terminal.

Further, as such an information providing system, for example, one shown in Japanese Patent Laid-Open No. 9-315272 is known. In this system, when an ignition key of a vehicle is turned on by a driver or the like, a measurement signal from a telemeter or a detection signal from a sensor is acquired as inspection information. Then, the inspection result such as the measurement signal of this time is displayed on the display device of the vehicle together with the distinction between normal and abnormal, and the driver or the like is allowed to select whether to transmit to the master station. When the parent station determines that the transmitted inspection result is abnormal, it refers to the past history (accumulated information) to identify the location of the failure, information on the replacement procedure and adjustment method of the relevant part, and the repair price. And information such as feature description are transmitted to the vehicle side. As a result, it is possible to execute a specific diagnosis based on the analysis of the accumulated information by the master station and to appropriately deal with the failure by notifying the vehicle of the countermeasure.

[0004]

However, in the conventional information providing system as described above, since the vehicle information is transmitted to the server (master station) and the maintenance information corresponding to the vehicle information is received, a troublesome operation for the user. There was a problem that I had to do. Also, because of this, the server side cannot collect sufficient vehicle information, and therefore, in the provision of information related to maintenance performed based on the accumulated information, there is a possibility that sufficient information cannot be provided in terms of both quality and quantity. was there. In particular, since the maintenance information is not frequently provided information, unless the user intentionally obtains the information, the maintenance information may not be notified to the user in a timely manner.

The present invention has been made in view of the above problems, and provides an information display method of a vehicle information system for automatically informing a vehicle occupant of maintenance information as needed after a user browses general information. The purpose is to provide.

[0006]

In order to solve the above-mentioned problems, an information display method of a vehicle information system according to the invention of claim 1 is an in-vehicle communication terminal (for example, the communication unit 23 of the embodiment) and the in-vehicle. An in-vehicle controller (for example, the control unit 21 of the embodiment) that controls information transmitted and received in the communication terminal, and an in-vehicle display that displays information received by the in-vehicle communication terminal and information from the in-vehicle controller. An information center (for example, the information center 1 according to the embodiment) capable of transmitting / receiving information to / from the communication terminal device with respect to a vehicle (for example, the vehicle 2 according to the embodiment) equipped with (the display unit 28 according to the embodiment). ) Is a method for displaying information in a vehicle information system, the selection screen for allowing an occupant of the vehicle to select information content from the vehicle-mounted system based on an instruction from the vehicle-mounted controller. When the occupant of the vehicle requests a process of displaying on the indicator (for example, step S1 of the embodiment) and an operation of acquiring any one of the information contents displayed on the selection screen, the in-vehicle communication A process of transmitting a parameter related to vehicle maintenance and a vehicle ID together with an information acquisition request signal from the terminal device to the information center (for example, steps S2 to S5 of the embodiment), and information content and maintenance information from the information center. Is received via the vehicle-mounted communication terminal (for example, step S17 of the embodiment), and processing for displaying the maintenance information after displaying general information about the information content on the vehicle-mounted display (for example, the embodiment). Form step S18-step S20) are included.

Thus, when the vehicle occupant desires to acquire any information from the information contents displayed on the in-vehicle display device, the in-vehicle controller requests the information acquisition request signal and the vehicle to acquire the information. The maintenance-related parameter and the vehicle ID for identifying the vehicle are simultaneously transmitted from the vehicle-mounted communication terminal to the information center. Then, the content of the requested information content and the maintenance information related to the parameters relating to the maintenance transmitted from the vehicle are transmitted from the information center to the vehicle, so that the in-vehicle display first displays general information regarding the information content, and then The maintenance information received from the information center can be automatically displayed.

An information display method for a vehicle information system according to a second aspect of the present invention is the information display method for a vehicle information system according to the first aspect, wherein the information center is associated with vehicle maintenance together with the information acquisition request signal. When the parameters to be set and the vehicle ID are received from the vehicle,
A process of acquiring the information content requested by the information acquisition request signal from the corresponding content server (for example, step S10 of the embodiment, step S21 to step S25), and a vehicle that has received the parameter related to the maintenance of the vehicle. A process of accumulating each ID (for example, step S32 to step S33 of the embodiment),
A process of identifying the presence or absence of maintenance information based on the stored parameters related to the maintenance or the received vehicle ID (for example, step S34 of the embodiment).
~ Step S38) and a process of merging the information content and the maintenance information and transmitting the merged information to the vehicle if the maintenance information is present after the information content is acquired from the content server (for example, the step of the embodiment). It is characterized in that S12 to step S16) are executed.

As a result, when the information center requests the information acquisition request signal requesting the information content, the parameter relating to the vehicle maintenance, and the vehicle ID for identifying the vehicle, the information center first requests the requested information content. The content of is acquired from the corresponding content server. On the other hand, the parameters related to maintenance transmitted from the vehicle are similarly classified and accumulated for each vehicle ID for identifying the vehicle transmitted from the vehicle. Then, the presence or absence of maintenance information related to the vehicle is identified based on the result of analyzing the accumulated information or the vehicle ID. If there is maintenance information related to the vehicle, the maintenance information can be transmitted to the vehicle together with the information content acquired from the content server.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a vehicle information system that executes an information display method according to an embodiment of the present invention. As shown in FIG. 1, the vehicle information system according to the present embodiment connects a vehicle 2 and an information center 1 that provides information to a vehicle occupant by a communication network 3 to provide a weather condition to a vehicle occupant. It is a system that provides general information such as forecasts and traffic congestion on the road and appropriate maintenance information for the vehicle 2. The information center 1 of the vehicle information system according to the present embodiment, on the basis of the request signal of the general information desired by the occupant transmitted from the vehicle 2 and the vehicle information of the vehicle 2, supports the general information and the maintenance of the vehicle 2, respectively. An information management center that distributes information. The information center 1 has a server function and transmits information via the communication network 3.

The vehicle 2 acquires the state of the vehicle from various sensors and various control units installed therein, and notifies the information center 1 of the failure diagnosis result and the component life monitoring result together with the vehicle number and the like via the communication network 3. And a communication device, and an input operation unit and a display unit for controlling and displaying the information. The communication network 3 is a communication network for connecting the information center 1 and the vehicle 2 described above,
For example, wireless communication by WAP (Wireless Application Protocol), the Internet using WWW (World Wide Web), or PSTN (Public Switch Telepho)
ne Network) and ISDN (Integrated Services Digita)
Information is transmitted and received by wired communication via public network such as Network.

The dealer 4 is a dealer who sells the vehicle 2. When the vehicle 2 is sold, the dealer 4 writes basic vehicle information in the memory card 5. Here, the basic vehicle information includes, for example, the name, address, age of the user of the vehicle 2,
It includes a customer ID stored in association with a telephone number / Mail address, etc., and a vehicle type ID stored in association with a vehicle model name, model, grade, and equipment specification of the vehicle 2. Furthermore, the maintenance ID stored in association with the maintenance item required for the vehicle, the registration date of the vehicle 2, the registration number, the vehicle body number, and the store name, address, contact information, etc. of the store stored in association with the store. ID etc. are also included.

Further, the information of the user and the information of the vehicle 2 are 1
Although the vehicle 2 may be associated with one another, since the owner and the user of the vehicle 2 may be different, for example, the vehicle name, model, year, registration number, vehicle body number, shop where the vehicle was purchased, etc. For multiple users (owner, user, etc.)
It is preferable to store the name, address, age, telephone number, etc. for each user. Further, when the information of a plurality of users is stored, it may be possible to specify which user's information has priority. In the vehicle information system according to the present embodiment, it is assumed that a plurality of vehicles 2 receive information from information center 1. Further, the memory card 5 may be of a contact type or a non-contact type, the stored contents can be freely read, and the contents can be written and changed by a predetermined procedure.

Next, the structure of the information center 1 used in the present embodiment will be described with reference to the drawings. Figure 2
FIG. 3 is a block diagram showing a configuration of an information center 1 of the vehicle information system of the present embodiment. As shown in FIG. 2, the information center 1 includes a control unit 11, a communication unit 12, a vehicle information database 13, maintenance information databases 14-1 to 14-n, and a general information database 15. The control unit 11 is a CPU (central processing unit)
An information providing program is executed in a computer system provided with the above to control the operation of the entire information center 1, and based on the request signal of general information desired by the occupant transmitted from the vehicle 2 and the vehicle information of the vehicle 2, respectively. The general information corresponding to and maintenance information for notifying the vehicle 2 of optimum maintenance are transmitted via the communication network 3. In the communication unit 12, the information center 1 is connected to the vehicle 2 via the communication network 3.
Is a communication device for exchanging information, and may be either a wired communication unit or a wireless communication unit as long as it can be connected to the communication network 3.

The vehicle information database 13 is a database that collectively stores the vehicle information of each vehicle of the vehicle 2 including the basic vehicle information stored in the memory card 5 and the vehicle state when the vehicle 2 transmits the vehicle information. is there. The maintenance information databases 14-1 to 14-n are n databases for storing maintenance information of vehicles of vehicle types (n vehicle types) extracted from the vehicle information database 13. In addition, maintenance information database 14-1 to 1
The maintenance information for each vehicle type stored in 4-n is analyzed for each vehicle type, and is used for providing new information regarding the vehicle and for vehicle maintenance. Further, the general information database 15 is a database for storing general information such as a weather forecast, traffic congestion on the road, news, and fortune telling information. The general information database 15 does not necessarily have to be provided inside the information center 1.

Further, the control unit 11 receives the request signal of the general information desired by the occupant and the vehicle information of the vehicle 2 transmitted from the vehicle 2, and is most suitable for the requested general information and the relevant vehicle 2. An information transmission / reception management unit 101 that transmits maintenance information instructing maintenance to the vehicle 2 and a general information management unit 10 that acquires general information desired by an occupant of the vehicle 2.
2 and a maintenance information management unit 103 that extracts and accumulates maintenance information for each vehicle type and function from the vehicle information of the vehicle 2 and analyzes these to create maintenance information that instructs the vehicle 2 to perform optimum maintenance. Have

Here, the information transmission / reception management unit 101 receives the request signal of the general information desired by the occupant and the vehicle information of the vehicle 2 transmitted from the vehicle 2, and separates the request signal of the general information from the vehicle information. At the same time, the sorted vehicle information is stored in the vehicle information database 13. It also outputs a general information request signal to the general information management unit 102 described later. Further, the general information desired by the occupant of the vehicle 2 acquired by the general information management unit 102 and the maintenance information management unit 1
The maintenance information of the vehicle 2 created by 03 is merged and transmitted to the vehicle 2. At this time, maintenance information priority management is also performed in which maintenance information having a high priority is preferentially transmitted.

The general information management unit 102 also receives general information desired by the occupants of the vehicle 2 from the general information database 15 or a content server (not shown) other than the information center 1 on the communication network 3. get. The content server that acquires the general information may be on the communication network 3. In this case, the general information management unit 102 acquires general information from another content server via the information transmission / reception management unit 101.

Further, the maintenance information management unit 103 is
The vehicle information transmitted from the vehicle 2 is stored in the vehicle information database 13, maintenance information is extracted from the vehicle information database 13 by vehicle type and function, and stored in the maintenance information databases 14-1 to 14-n. And maintenance information database 14-1.
The maintenance information for each vehicle type and function stored in 14-n is analyzed, and from the failure level, maintenance information to be noted such as defect information about the same vehicle type or information relating to recall is extracted. Furthermore, the maintenance information management unit 103 also creates maintenance notification information for notifying an occupant of the vehicle 2 of optimal maintenance for the vehicle 2.

An input operation unit and a display unit (not shown) are connected to the control unit 11. The details of the operation of the control unit 11 will be described later. Further, the vehicle information database 13 and the maintenance information database 14-1 to 14-1.
14-n and the general information database 15 include a hard disk device, a magneto-optical disk device, a nonvolatile memory such as a flash memory, and a RAM (Random AccessMemory).
Such a volatile memory, or a computer-readable / writable recording medium using a combination thereof.

Further, the information transmission / reception management unit 101, the general information management unit 102, and the maintenance information management unit 103 are
It may be configured by a memory and a CPU (central processing unit), and may realize the function by loading and executing a program for realizing the function of each unit described above into the memory. It may be realized by hardware.

Next, the structure of the vehicle 2 used in the present embodiment will be described with reference to the drawings. FIG. 3 is a block diagram showing the configuration of the vehicle 2 of the vehicle information system of this embodiment. As shown in FIG. 3, the vehicle 2 includes a control unit 21.
A communication antenna 22, a communication unit 23, a vehicle-mounted sensor 24, a vehicle-mounted control unit 25, an in-vehicle LAN (Local Area Network) 26, an input operation section 27, a display section 28, and a memory card. Interface 2
9 and 9. The control unit 21 executes a vehicle state management program in a computer system including a CPU (central processing unit), and acquires the state of the vehicle 2 from vehicle-mounted sensors 24 and vehicle-mounted control units 25 mounted on the vehicle 2. Then, the vehicle determination information such as the failure diagnosis result and the component life monitoring result and the repair request are managed. Also, the vehicle 2
The communication for notifying the information center 1 of the determination information and the repair request as vehicle information together with the basic vehicle information is controlled.
The communication antenna 22 is for transmitting vehicle information to the information center 1, and is a communication unit 23 for wireless communication that transmits vehicle information managed by the control unit 21 on radio waves.
Connected with.

The on-vehicle sensors 24 are a vehicle speed sensor, a so-called G sensor, a brake switch for detecting the operation of the brake, a steering sensor for detecting the steering amount of the steering wheel,
A yaw rate sensor for detecting a yaw rate, a shift position sensor for detecting a shift position, a throttle opening sensor for detecting an opening of a throttle valve, an engine speed sensor for detecting an engine speed, an engine oil and an AT.
It includes sensors such as oil temperature sensors for detecting the temperature of F (Automatic Transmission Fluid) oil, and meters such as an integrated odometer. Further, it includes means for acquiring the control state of the own vehicle by the driver based on the state of the switch operated by the driver, such as a turn signal (direction indicating switch), a headlight, and a wiper switch.

The vehicle-mounted control unit 25 includes a fuel injection control system for the engine, a four-wheel antilock brake system for controlling the braking of the vehicle, a traction control system for controlling the driving of the vehicle, and the transmission of the driving force. ECUs (Electronic Control Units) for automatic transmissions that control the vehicle
And a position information presentation device called a navigation system using GPS (Global Positioning System),
It includes a control unit that is arranged in each part of the vehicle to control meters, door locks, and the like, and that is used to perform traveling control and operation / display control of the vehicle. It should be noted that the CAN (Co) that constitutes the in-vehicle LAN 26 is provided between the control unit 21, the vehicle-mounted sensors 24, and the vehicle-mounted control units 25.
It is possible to send and receive information in both directions.

Further, a control unit 21 mounted on the vehicle 2,
The communication antenna 22 and the communication unit 23 may function as a part of the position information presenting device referred to as the above-mentioned navigation system. In this case, in addition to the accumulated mileage as in the accumulated odometer of the vehicle, The average fuel consumption etc. can also be obtained. Further, the control unit 21 includes an input operation unit 27 including a keypad, a button, a pointing device and the like prepared for an occupant of the vehicle 2 to operate the control unit 21, a vehicle-mounted sensor 24 and a vehicle-mounted control unit. The display unit 28 for displaying the state of the vehicle 2, the failure diagnosis result, the component life monitoring result, and the like acquired from the class 25, and the information received from the information center 1 is connected.

The display unit 28 is provided with a voice output means for displaying sounds and voices, a meter integrated display integrated with meters of the vehicle for displaying images and character information, and a console of the vehicle. NAVIDispl
y, and HUD (Head Up Display) that displays information in a position that does not obstruct the driver's forward vision in the front window
Including etc. Further, a memory card interface 29 is connected to the control unit 21, and the control unit 21 reads the contents stored in the memory card 5 to acquire the basic vehicle information regarding the vehicle 2 described above.

In addition, the control unit 21, in particular, performs a failure diagnosis of the vehicle 2 on the basis of the state of the vehicle 2 acquired from the vehicle-mounted sensors 24 and the vehicle-mounted control unit 25, and the component life. And a component life calculation unit 202 that calculates the replacement time. Further, the control unit 21 includes a general request processing unit 203 that executes an acquisition process of general information desired by an occupant of the vehicle, and a general request processing unit 2
When 03 sends a request signal for general information desired by the occupant to the information center 1, at the same time, the maintenance data obtained from the contents diagnosed by the failure diagnosis unit 201 and the results calculated by the component life calculation unit 202 are displayed. A vehicle information transmission unit 204 that transmits the vehicle information together with the basic vehicle information to the information center 1; and a maintenance unit that receives the vehicle information and that receives the maintenance information that instructs the vehicle 2 to perform optimal maintenance. 28, and a maintenance information processing unit 205 to display on the display 28.

Here, the component life calculated by the component life calculation unit 202 is, for example, the engine oil calculated based on the integrated engine speed obtained from the engine speed sensor, the oil temperature obtained from the oil temperature sensor, and the like. Deterioration parameters, tire wear parameters calculated based on the accumulated results of acceleration / deceleration obtained from the mileage and acceleration sensor obtained from the total odometer and navigation system, and the wiper switch control status (ON / OFF) The wiper deterioration parameter and the like calculated based on the accumulated use time and the elapsed time after replacement of the wiper are obtained. The above-described failure diagnosis and component life calculation may be performed by the control unit included in the vehicle-mounted control unit 25. The communication antenna 22 and the communication unit 23 are the interface unit 30 and the mobile phone 31 for connecting the mobile phone to the control unit 21.
May be Furthermore, the mobile phone 31 may be a PDA (Personal Digital Assistants) equipped with a communication unit.

The failure diagnosis unit 201, the parts life calculation unit 202, the general request processing unit 203, the vehicle information transmission unit 204, and the maintenance information processing unit 205 are composed of a memory and a CPU (central processing unit). The function may be realized by loading a program for realizing the function of each unit described above into a memory and executing the program, or may be realized by dedicated hardware. good.

Next, the operation and processing procedure of the vehicle information system of this embodiment will be described with reference to the drawings. FIG. 4 is a flowchart showing the operation and processing procedure of the vehicle information system according to the present embodiment. As shown in FIG. 4, first, the control unit 21 of the vehicle 2 displays on the display unit 28 a selection screen that allows the occupants of the vehicle 2 to select information content such as weather forecast, traffic congestion on the road, news, and fortune telling information. (Step S1). Next, when the occupant of the vehicle 2 performs an operation to acquire general information such as a weather forecast, traffic congestion on the road, news, and fortune-telling information from the input operation unit 27 provided in the vehicle 2 (step S2). The failure diagnosis unit 201 and the component life calculation unit 202 of the control unit 21 are each data (maintenance data) corresponding to the maintenance information item.
Is acquired (step S3).

Here, examples of the details of each data corresponding to the maintenance information item include, for example, (1) various diagnostic information VSA (Vehicle Stability Assist) vehicle failure code (ECU / sensors), CAN injection failure code (combination unit, door unit, A / C unit, MICU unit) such as fuel injection failure code, automatic transmission failure code, engine oil life, oil level, etc. (2) Various vehicle status switch information (headlight, parking) , Auto cruise, wiper, turn, etc.), fuel consumption, remaining fuel amount, remaining fuel warning light, meter indicating vehicle speed

(3) Navigation system travel information Road type, current position, position accuracy, etc. (4) Trip computer information Cruising distance, average fuel consumption (5) Navigation system version information Map CD-ROM version, application program version information, etc. To be

Next, the vehicle information transmission section 204 of the control section 21.
Determines whether communication with the information center 1 is established (step S4). When communication with the information center 1 is not established in step S4 (step S4)
No of 4), it returns to step S3 and repeats the above-mentioned processing. When the communication with the information center 1 is established in step S4 (YES in step S4), the vehicle information transmission unit 204 detects the vehicle 2 including the above-mentioned maintenance data and the basic vehicle information stored in the memory card 5. The communication unit 23 outputs the vehicle information together with the request signal of the general information desired by the occupant of the vehicle 2 output from the general request processing unit 203.
The information is transmitted to the information center 1 via (step S5).

On the other hand, in the information center 1, the communication unit 1
2, the information transmission / reception management unit 101 of the control unit 11
The vehicle 2 receives the request signal of the general information desired by the occupant and the vehicle information as shown in FIG. 5A from the vehicle 2 (step S
6) Store (step S7). Next, the information transmission / reception management unit 101 separates the received signal into a request signal for general information and a vehicle information, and as shown in FIGS. After the vehicle information, a tag indicating that both are transmitted from the vehicle 2 at the same timing is added (step S8). Then, it is determined whether each signal is a general information request signal or vehicle information (step S9), and if it is a general information request signal (NO in step S9), the general information of the control unit 11 is determined. A general request process is performed by the information management unit 102 (step S10), and general information desired by the occupant of the vehicle 2 is acquired. If the signal is vehicle information (step S
9 YES), the maintenance information management unit 1 of the control unit 11
03 maintenance processing (step S1
1) Obtain maintenance information instructing appropriate maintenance for the vehicle 2.

Next, step S10 and step S1
5, when the general request process and the maintenance process are completed, the information transmission / reception management unit 101 operates as shown in FIG.
As shown in (d) and (e), the tags added to each of the acquired general information and maintenance information are read (step S12), and it is determined whether the two match (step S13). As a result of matching the tags of the general information and the maintenance information in step S13, if the two do not match (NO in step S13), the stored reception information is read again (step S14). And it returns to step S8 and repeats the above-mentioned processing.

Further, in step S13, when the tags of the general information and the maintenance information are compared with each other as a result (YES in step S13), the general information and the maintenance information having the same tag are merged, and FIG.
Data to be transmitted to the vehicle 2 as shown in (f) is created (step S15). The information transmission / reception management unit 101
Returns a signal obtained by merging general information and maintenance information to the vehicle 2 that has transmitted the general information request signal and the vehicle information via the communication unit 12 (step S1).
6).

On the other hand, in the vehicle 2, when a signal obtained by merging general information and maintenance information is received from the information center 1 via the communication unit 23 (step S17), the general request processing unit 203 of the control unit 21 first displays the display unit 28. In vehicle 2
Display general information desired by passengers on the screen (step S
18). Next, when the screen display of the general information is completed, the maintenance information processing unit 205 of the control unit 21 continuously displays the maintenance information for instructing the appropriate maintenance for the vehicle 2 continuously on the screen, and the occupant of the vehicle 2 performs the maintenance. Information is announced (step S19). Then, when the notification of the maintenance information is completed, other processing such as change of the maintenance information display notification method and inspection guidance is executed (step S20), and the processing of the vehicle information system of the present embodiment is completed.

In step S12, when the tags added to the acquired general information and maintenance information are read, the weight adjustment is performed until both the information can be acquired. However, if the general request processing time <maintenance processing time, the general information is transmitted to the information center 1 in advance. In this case, as shown in FIG. 5 (g), the request code of the maintenance information is added to the general information and transmitted.

Next, a general request processing procedure of the vehicle information system of the present embodiment will be described with reference to the drawings. Figure 6
3 is a flowchart showing a general request processing procedure of the vehicle information system of the present embodiment. As shown in FIG. 6, first, the general information management unit 102 of the control unit 11 separates the added tag from the general information request signal (step S2).
1). Next, the content of the information requested from the general information request signal is judged (step S22). When the content of the requested information can be determined, a content server that distributes the requested information is searched from various servers on the communication network 3 (step S23). When the content server that delivers the desired information can be searched, the content server sends the vehicle 2
Obtains general information desired by the passenger (step S2)
4). The desired information may be acquired from the general information database 15 on the information center 1. Finally, the tag added to the general information request signal is added to the acquired general information and output (step S25).

Next, a maintenance processing procedure of the vehicle information system of the present embodiment will be described with reference to the drawings.
FIG. 7 is a flowchart showing a maintenance processing procedure of the vehicle information system of the present embodiment. As shown in FIG. 7, first, the maintenance information management unit 10 of the control unit 11
3 separates the added tag from the vehicle information (step S31). Next, the vehicle information is stored in the vehicle information database 1
The data is collectively stored in 3 (step S32). And car type I
By D, the maintenance information is extracted from the vehicle information database 13 by vehicle type and function and stored in the maintenance information databases 14-1 to 14-n (step S).
33). If the maintenance information is accumulated by vehicle type and function, these maintenance information will be the maintenance information,
Information is organized and analyzed for each maintenance item (step S34). The maintenance information management unit 103 creates maintenance information for instructing optimum maintenance for the vehicle 2 based on the organization and analysis of the maintenance information (step S35).

Next, it is determined whether or not there is other defect information or recall information for the same vehicle type (step S3).
6). In step S36, if there is other defect information or recall information for the same vehicle type (step S36).
YES), other defect information and recall information for the same vehicle type are added to the maintenance information (step S3).
7). Finally, the tag added to the vehicle information is added to the maintenance information and output (step S3).
8). If there is no other defect information or recall information for the same vehicle type in step S36 (NO in step S36), the process proceeds to step S38 without doing anything, and the tag added to the vehicle information is added to the maintenance information. And output (step S38).

FIG. 8 shows an example of the operation and display screen displayed on the display section 28 of the vehicle 2 operated by the occupant of the vehicle 2 in the series of operations of the vehicle information system of the present embodiment described above. As shown in FIG. 8A, when an occupant of the vehicle 2 desires to view the weather forecast, as shown in FIG. 8B, first, the weather forecast acquired via the information center 1 is displayed on the display unit 28. Information is displayed. Next, after the information of the weather forecast is displayed, the display is automatically switched, and, for example, as shown in FIG. 8C, maintenance information instructing maintenance such as oil change is displayed on the display unit 28.

As described above, the vehicle information system according to the present embodiment transmits the request signal of the general information desired by the occupant of the vehicle 2 from the vehicle 2 to the information center 1, and the vehicle-mounted sensors 24 and The maintenance data of the vehicle 2 calculated from the information acquired from the vehicle-mounted control unit 25 is used as the vehicle information together with the basic vehicle information in the information center 1.
Send to at the same time. On the other hand, the information center 1 stores the received vehicle information and analyzes the maintenance information included in the vehicle information by vehicle type and function. And vehicle 2
Maintenance information for instructing optimum maintenance is created and transmitted to the vehicle 2 together with the requested general information.
In the vehicle 2 that has acquired the general information and the maintenance information, after displaying the general information desired by the occupant of the vehicle 2 on the display unit 28, the maintenance information received from the information center 1 is automatically displayed on the display unit 28.

Therefore, the occupant of the vehicle 2 can obtain the maintenance information indicating the necessity of the vehicle maintenance of the own vehicle without requiring a special operation when obtaining the general information. In addition, the information provider analyzes the maintenance information included in the vehicle information transmitted from the vehicle 2 to provide proper guidance from the viewpoint of the occupant (user) of the vehicle 2 when instructing maintenance. It can be performed. Further, the information providing side can analyze maintenance information to extract, for example, maintenance information to be noted that corresponds to a failure information or a recall occurring in the same vehicle type, and the occupant of the vehicle 2 can be extracted. On the side, the maintenance information automatically transmitted from the information center 1 can promptly obtain the latest recall information and quickly respond to the maintenance. Further, the information providing side can easily manage the recall target vehicle, and the occupant side of the vehicle 2 is prevented from forgetting to perform important maintenance such as recall.

[0045]

As described above, according to the information display method of the vehicle information system according to the first aspect, when the occupant of the vehicle desires to acquire the information content displayed on the in-vehicle display, the information is acquired. The information acquisition request signal for requesting, the parameter relating to vehicle maintenance, and the vehicle ID for identifying the vehicle are simultaneously transmitted from the vehicle-mounted communication terminal to the information center. On the other hand, since the requested information content and the maintenance information related to the vehicle are transmitted from the information center to the vehicle, the general information about the information content is first displayed and then automatically received from the information center. Maintenance information can be displayed.
Therefore, since the maintenance information required for the vehicle is automatically displayed when the general information is obtained, it is possible to obtain the effect that the vehicle occupant can obtain the maintenance information at a necessary timing without being aware of the operation related to the maintenance. To be

According to the information display method of the vehicle information system of the second aspect, in the information center, the information acquisition request signal for requesting the information content, the parameter relating to the maintenance of the vehicle, and the vehicle ID for specifying the vehicle.
When and are transmitted from the vehicle, the details of the requested information content are first acquired from the corresponding content server.
On the other hand, the received maintenance-related parameters are classified and stored for each vehicle ID. Then, the presence or absence of maintenance information related to the vehicle is identified based on the result of analyzing the accumulated information or the vehicle ID. If there is maintenance information related to the vehicle, the information center can transmit the maintenance information to the vehicle together with the information content acquired from the content server. Therefore, on the vehicle side, together with the information acquisition request signal requesting the information content desired by the vehicle occupant,
The effect that the maintenance information necessary for the vehicle can be acquired and displayed to the occupants of the vehicle at an appropriate timing only by transmitting the parameter related to the vehicle maintenance and the vehicle ID for identifying the vehicle to the information center. can get.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a vehicle information system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of an information center of the vehicle information system of the same embodiment.

FIG. 3 is a block diagram showing a configuration of a vehicle of the vehicle information system of the same embodiment.

FIG. 4 is a flowchart showing an operation and a processing procedure of the vehicle information system of the embodiment.

FIG. 5 is a diagram showing a signal form handled on the information center side of the vehicle information system of the embodiment.

FIG. 6 is a flowchart showing a general request processing procedure of the vehicle information system of the embodiment.

FIG. 7 is a flowchart showing a maintenance processing procedure of the vehicle information system of the embodiment.

FIG. 8 is a diagram showing an example of an operation and display screen of the vehicle information system of the same embodiment.

[Explanation of symbols]

1 Information center 2 vehicles 3 communication network 11 Control unit 12 Communication unit 13 Vehicle information database 14-1 to 14-n Maintenance information database 15 General information database 21 Control unit 23 Communication unit 24 Vehicle-mounted sensors 25 Vehicle-mounted control units 28 Display 101 Information transmission / reception management unit 102 General Information Management Department 103 Maintenance Information Management Department 201 Failure diagnosis unit 202 Parts life calculator 203 General Request Processing Unit 204 Vehicle information transmitter 205 Maintenance information processing unit

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toshihide Adopter             1-4-1 Chuo Stock Market, Wako City, Saitama Prefecture             Inside Honda Research Laboratory F-term (reference) 3D026 BA01 BA21 BA22 BA29                 5B035 BB09 BC00                 5K067 AA21 BB03 BB04 BB21 DD17                       DD51 EE02 EE10 EE16 FF02                       FF23 HH22 HH32 KK15

Claims (2)

[Claims] 1. An in-vehicle communication terminal and an in-vehicle controller that controls information transmitted and received by the in-vehicle communication terminal, and an in-vehicle that displays information received by the in-vehicle communication terminal and information from the in-vehicle controller. A method for displaying information of a vehicle information system for providing information to a vehicle equipped with a display device from an information center capable of transmitting and receiving information to and from the communication terminal device, wherein the occupant of the vehicle selects information content. A process of displaying a selection screen on the in-vehicle display based on an instruction from the on-vehicle controller and an operation of acquiring any information of the information contents displayed on the selection screen are requested by an occupant of the vehicle. In the case of a failure, a process of transmitting a parameter related to vehicle maintenance and a vehicle ID together with an information acquisition request signal from the vehicle-mounted communication terminal to the information center. , A process of receiving information content and maintenance information from the information center via the in-vehicle communication terminal device, and a process of displaying the maintenance information after displaying general information about the information content on the in-vehicle display device. An information display method for a vehicle information system, comprising: 2. When the information center receives a parameter related to vehicle maintenance and a vehicle ID together with the information acquisition request signal from the vehicle, the information center responds to the information content requested by the information acquisition request signal. The process of acquiring from the content server, the process of accumulating the received parameter related to the maintenance of the vehicle for each received vehicle ID, the accumulated parameter related to the maintenance or the maintenance information based on the received vehicle ID The process of identifying the presence and absence, and after acquiring the information content from the content server,
The information display method of the vehicle information system according to claim 1, wherein when there is the maintenance information, a process of merging the information content and the maintenance information and transmitting the merged information to the vehicle is performed.