JP2021048493A - Electronic control device for automobile - Google Patents

Abstract

To generate maintenance information at proper timing.SOLUTION: A central gateway mounted on an automobile 100 has a function of performing short-range wireless communication with a portable information terminal 200, and a function of generating maintenance information when vehicle information indicating a temporal change exceeds a predetermined threshold. The central gateway collects operation tendency information indicating an operation tendency of a driver and travel environment information indicating a vehicle travel environment respectively so as to transmit the information to the portable information terminal 200, and receives a correction value obtained from the operation tendency information and the travel environment information from the portable information terminal 200. The central gateway which has received the correction value corrects a predetermined threshold in accordance with the received correction value.SELECTED DRAWING: Figure 1

Description

The present invention relates to an electronic control device for an automobile that generates maintenance information.

As described in Japanese Patent Application Laid-Open No. 2004-32017 (Patent Document 1), automobile maintenance information is generated from vehicle information indicating changes over time such as mileage and elapsed time. Then, the driver who confirms the maintenance information receives maintenance corresponding to the maintenance information, for example, changing the engine oil with a dealer or the like.

Japanese Unexamined Patent Publication No. 2004-32017

By the way, automobile maintenance information is generally generated when vehicle information indicating a change over time exceeds a predetermined threshold value, for example, the mileage after maintenance exceeds a predetermined distance. .. However, when the driving tendency of the driver deviates from the standard one, there is a possibility that maintenance information may not be generated at an appropriate time even though the in-vehicle equipment and the like are heavily consumed.

Therefore, an object of the present invention is to provide an electronic control device for an automobile capable of generating maintenance information at an appropriate time.

Therefore, the electronic control device for automobiles has a function of short-range wireless communication with a mobile information terminal and a function of generating maintenance information related to the vehicle information when the vehicle information indicating a change over time exceeds a predetermined threshold value. , Is equipped. Then, the electronic control device for automobiles collects driving tendency information indicating the driving tendency of the driver and transmits it to the mobile information terminal, and receives the correction value obtained from the driving tendency information and the past failure information from the mobile information terminal. Then, the predetermined threshold value is corrected according to this correction value.

According to the present invention, since maintenance information is generated in consideration of the driving tendency of the driver, maintenance information can be generated at an appropriate time.

It is a schematic diagram which shows an example of the system which provides maintenance information. It is a block diagram which shows an example of the electronic control system of a vehicle. It is an internal structure diagram which shows an example of a central gateway. It is a data structure diagram which shows an example of the record stored in the driving tendency database. It is a data structure diagram which shows an example of the record stored in the driving environment database. It is a data structure diagram which shows an example of a record stored in a fault information database. It is a flowchart which shows an example of the information storage process. It is a flowchart which shows an example of failure information accumulation processing. It is a flowchart which shows an example of a correction value setting process. It is a flowchart which shows an example of maintenance information generation processing. It is a figure which shows an example of the failure occurrence notification screen. It is a figure which shows another example of the failure occurrence notification screen.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the attached drawings.
FIG. 1 shows an example of a system that provides maintenance information to the driver of the vehicle 100. Here, the vehicle 100 can be an automobile including a passenger car, a truck, a bus, and the like.

As shown in FIG. 2, the electronic control system of the vehicle 100 includes a plurality of electronic control devices (ECUs) 120, an in-vehicle information communication system 140, a telematics system 160, and a central gateway 180. .. Each electronic control device 120 electronically controls, for example, an engine, an automatic transmission, an electric brake, and the like. The in-vehicle information communication system 140 includes a display device such as a liquid crystal display, and functions as an information device on which an arbitrary application program can be installed. The telematics system 160 uses two-way communication to provide the information that the driver wants. The central gateway 180 functions as a router / central computing unit that interconnects a plurality of electronic control devices 120, an in-vehicle information communication system 140, and a telematics system 160 via an in-vehicle network such as CAN (Controller Area Network). To do. The in-vehicle information communication system 140 and the telematics system 160 are provided with short-range wireless communication functions such as Wi-Fi (registered trademark) and Bluetooth (registered trademark), which enable data exchange between digital devices wirelessly.

The central gateway 180 uses the short-range wireless communication function of the in-vehicle information communication system 140 or the telematics system 160 to pair with a mobile information terminal 200 such as a smartphone carried by the driver of the vehicle 100 to obtain arbitrary data. It is possible to send and receive. In short, the central gateway 180 has a function of short-range wireless communication with the mobile information terminal 200. By installing and executing a predetermined application program in advance, the personal digital assistant 200 uses the mobile communication system to transmit arbitrary information transmitted from the central gateway 180 to information communication such as the base station 300 and the Internet. Transfer to the server 500 provided with the database via the network 400. Further, the mobile information terminal 200 uses short-range wireless communication to transfer arbitrary information transmitted from the server 500 to the mobile information terminal 200. In short, the mobile information terminal 200 functions to intervene communication between the central gateway 180 and the server 500 in view of the fact that the central gateway 180 and the server 500 cannot directly communicate with each other.

The computer 600 installed in a maintenance shop or a dealer responsible for the maintenance of the vehicle 100 is connected to the information communication network 400. Therefore, the computer 600 installed in a maintenance shop, a dealer, or the like can refer to the database of the server 500 via the information communication network 400, or can refer to the database of the server 500, the portable information terminal 200, or the base station by performing authentication according to a predetermined procedure, for example. It is possible to communicate with the central gateway 180 via the 300 and the information communication network 400. Therefore, the driver of the vehicle 100 can use any information and services provided by the maintenance shop, the dealer, and the like.

The central gateway 180 is given as an example of an electronic control device mounted on the vehicle 100. As shown in FIG. 3, the central gateway 180 includes a processor 180A, a non-volatile memory 180B, a volatile memory 180C, a communication circuit 180D, an input / output circuit 180E, and the like. It has a built-in internal bus 180F that electrically connects to.

The processor 180A is hardware that executes an instruction set (data transfer, calculation, processing, control, management, etc.) described in an application program, and is derived from an arithmetic unit, registers for storing instructions and information, peripheral circuits, and the like. It is configured. The non-volatile memory 180B is a semiconductor element such as a flash ROM (Read Only Memory) or an EEPROM (Electrically Erasable Programmed Read Only Memory) that can retain data even when the power supply is cut off. For example, an engine or an automatic transmission. , Application programs that control electric brakes, etc., learning values, etc. are stored. The volatile memory 180C is a semiconductor element such as a RAM (Random Access Memory) in which data is lost when the power supply is cut off, and provides a temporary work area of the processor 180A.

The communication circuit 180D comprises, for example, a CAN transceiver and provides a function of connecting to an in-vehicle network. The input / output circuit 180E includes, for example, an A / D converter, a D / A converter, a D / D converter, and the like, and provides an input / output function of an analog signal and a digital signal to an external device. The internal bus 180F is a route for exchanging data between each device, and actually performs input / output on the address bus for transferring addresses, the data bus for transferring data, and the address bus and data bus. It includes a control bus that exchanges timing and control information.

The server 500 is composed of, for example, a general-purpose computer, and stores and stores driving tendency information indicating the driving tendency of the driver of the vehicle 100. The driving tendency DB (database) 520 and the driving environment information indicating the driving environment of the vehicle 100 are stored. It includes a driving environment DB 540 that stores and stores, and a failure information DB 560 that stores and stores failure information of various devices mounted on the vehicle 100.

As shown in FIG. 4, the driving tendency DB 520 includes acceleration, vehicle speed, and angular velocity (rolling, pitching, and yawing) that can be given as an example of driving tendency information with respect to a vehicle ID (identifier) that can identify the vehicle 100. , Engine speed, braking frequency, etc. are stored and accumulated. In the example shown in FIG. 4, only the record related to the vehicle 100 having the vehicle ID 0001 is stored and stored in the driving tendency DB 520, but it should be noted that the records related to the other vehicle 100 are also stored and stored. I want (same below).

Acceleration serves as a material for determining whether or not the driver tends to stop suddenly, accelerate suddenly, and decelerate suddenly. If the number of times in a predetermined period exceeds a predetermined threshold value, for example, tires, suspensions, rubber bushes, and brakes. It affects the timing of maintenance of pads, etc. The vehicle speed is a material for determining whether or not the driver tends to drive on a highway at high speed, and if the cumulative time exceeds a predetermined threshold value, for example, maintenance of engine oil, body coat, etc. is performed. Affects timing. The angular velocity is a material for determining whether or not the driver tends to steer or brake suddenly, and if the number of times in a predetermined period exceeds a predetermined threshold value, for example, maintenance of tires, suspensions, steering devices, etc. is performed. Affects when to do it. The engine speed is a material for judging whether or not the driver tends to accelerate suddenly or run at high speed, and if the number of times or the cumulative time exceeds a predetermined threshold, maintenance of the timing belt, engine oil, etc. is performed. Affects timing. The braking frequency is a material for determining whether or not the driver tends to apply the brakes frequently, and if the frequency in a predetermined period exceeds a predetermined threshold value, for example, maintenance of brake pads and brake fluid is performed. Affects timing.

As shown in FIG. 5, the driving environment DB 540 stores a record associated with the vehicle ID that can identify the vehicle 100, such as the outside air temperature, the vehicle position, and the vibration, which can be cited as an example of the driving environment information. It has been accumulated.

The outside air temperature serves as a material for determining whether or not the vehicle 100 is under a high temperature, and if the cumulative time exceeds a predetermined threshold value, it affects, for example, the timing of performing maintenance of engine oil or the like. The vehicle position can be used as a material for determining whether or not the vehicle 100 is staying in a humid area or a salt-damaged area by referring to the map data. If the cumulative time exceeds a predetermined threshold value, for example, engine oil or brake pad. , Affects the timing of maintenance such as body coat. The vibration serves as a material for determining whether or not the vehicle 100 is traveling on rough terrain, and if the cumulative traveling time exceeds a predetermined threshold value, it affects, for example, the timing of maintenance of tires, suspensions, rubber bushes, and the like. To do.

As shown in FIG. 6, the failure information DB 560 contains the remaining amount of fuel, the remaining amount of oil, and running, which can be given as an example of vehicle information indicating a change over time of the vehicle 100 with respect to a failure ID capable of identifying a failure. The distance and operating time, acceleration, vehicle speed, angular velocity, engine speed and braking frequency, which can be cited as an example of driving tendency information, and outside temperature, vehicle position, vibration, etc., which can be cited as an example of driving environment information, are associated. Records are stored and stored. Since the failure information DB 560 holds past failure information regarding a specific vehicle type, records for each vehicle type are stored and accumulated.

FIG. 7 shows an information storage process that is repeatedly executed by the processor 180A of the central gateway 180, the mobile information terminal 200, and the server 500 at the first predetermined time when the electronic control system mounted on the vehicle 100 is activated. An example is shown. Here, the first predetermined time can be determined, for example, according to the required accuracy of the timing for generating maintenance information. Further, the processor 180A of the central gateway 180, the personal digital assistant 200, and the server 500 execute the information storage process according to the application program installed in advance. As a premise for executing the information storage process, the central gateway 180 and the mobile information terminal 200 are in a state where short-range wireless communication is possible, and the mobile information terminal 200 and the server 500 are in a state where mobile communication is possible (the same applies hereinafter). ).

In step 10 (abbreviated as “S10” in FIG. 7; the same applies hereinafter), the processor 180A of the central gateway 180 determines the driving tendency of the driver of the vehicle 100 from the plurality of electronic control devices 120 mounted on the vehicle 100. The driving tendency information shown and the driving environment information indicating the driving environment of the vehicle 100 are read and collected respectively. Here, in order to control the control target device, various sensors for detecting the state of the control target device are connected to each electronic control device 120 (the same applies hereinafter). Further, the driving tendency information is not limited to all of the above-mentioned acceleration, vehicle speed, angular velocity, engine speed, braking frequency, and the like, and at least one of these can be used. The traveling environment information is not limited to all of the above-mentioned outside air temperature, vehicle position, vibration, and the like, and at least one of these can be used.

In step 11, the processor 180A of the central gateway 180 reads, for example, the vehicle ID stored in the non-volatile memory 180B, and uses short-range wireless communication to carry the vehicle ID, driving tendency information, and driving environment information. Send to terminal 200. After that, the processor 180A of the central gateway 180 ends the information storage process.

In step 12, the mobile information terminal 200 that has received the vehicle ID, driving tendency information, and driving environment information from the central gateway 180 transfers the vehicle ID, driving tendency information, and driving environment information to the server 500 using the mobile communication system. To do. After that, the processor 180A of the central gateway 180 ends the information storage process.

In step 13, the server 500 that has received the vehicle ID, the driving tendency information, and the driving environment information from the mobile information terminal 200 updates the driving tendency DB 520 and the driving environment DB 540, respectively. Specifically, the server 500 creates a record in which the driving tendency information is associated with the vehicle ID, and sequentially stores and stores the record in the driving tendency DB 520. Further, the server 500 creates a record in which the traveling environment information is associated with the vehicle ID, and sequentially stores and stores the record in the traveling environment DB 540. After that, the server 500 ends the information storage process.

According to the information storage process, the driving tendency information indicating the driving tendency of the driver of the vehicle 100 and the driving environment indicating the driving environment of the vehicle 100 are triggered by the activation of the electronic control system mounted on the vehicle 100. The information is collected at the first predetermined time and transmitted to the mobile information terminal 200. The mobile information terminal 200 that has received the driving tendency information and the vehicle environment information transfers them to the server 500. Then, the server 500 that has received the driving tendency information and the vehicle environment information creates a record in which the driving tendency information and the driving environment information are associated with the vehicle ID that can identify the vehicle 100, and these are used as the driving tendency DB 520 and the driving. Each is stored and stored in the environment DB 540. Therefore, by referring to the driving tendency DB 520 of the server 500, it is possible to grasp the driving tendency that affects the timing of performing maintenance, for example, the driver of the vehicle 100 often accelerates suddenly. Further, by referring to the traveling environment DB 540 of the server 500, it is possible to grasp the traveling environment that affects the timing of performing maintenance, for example, the vehicle 100 often travels in a salt-damaged area.

FIG. 8 shows an example of failure information storage processing executed by the processor 180A of the central gateway 180, the portable information terminal 200, and the server 500 when a failure occurs in the device mounted on the vehicle 100. Here, the failure of the device mounted on the vehicle 100 can be detected by, for example, the failure diagnosis function mounted on each electronic control device 120. Further, the processor 180A of the central gateway 180, the personal digital assistant 200, and the server 500 execute the failure information storage process according to the application program installed in advance.

In step 20, the processor 180A of the central gateway 180 uses the plurality of electronic control devices 120 mounted on the vehicle 100 to indicate vehicle information indicating changes over time in the vehicle 100 and driving tendency information indicating the driving tendency of the driver of the vehicle 100. , And the driving environment information indicating the driving environment of the vehicle 100 is read and collected respectively. Here, the vehicle information is not limited to all of the above-mentioned fuel remaining amount, oil remaining amount, operating time, and the like, and at least one of these can be used.

In step 21, the processor 180A of the central gateway 180 transmits the failure ID, the vehicle information, the driving tendency information, and the driving environment information capable of identifying the failure to the mobile information terminal 200 by using the short-range wireless communication. After that, the processor 180A of the central gateway 180 ends the failure information storage process.

In step 22, the mobile information terminal 200 that has received the failure ID, vehicle information, driving tendency information, and driving environment information from the central gateway 180 uses the mobile communication system to use the mobile communication system to provide the failure ID, vehicle information, driving tendency information, and driving environment. The information is transferred to the server 500. After that, the processor 180A of the central gateway 180 ends the failure information storage process.

In step 23, the server 500 that has received the failure ID, the vehicle information, the driving tendency information, and the driving environment information creates a record in which the vehicle information, the driving tendency information, and the driving environment information are associated with the failure ID, and causes the failure. It is sequentially stored and stored in the information DB 560. After that, the server 500 ends the failure information storage process.

According to the failure information storage process, vehicle information indicating a change over time of the vehicle 100 and driving tendency information indicating the driving tendency of the driver of the vehicle 100 are triggered by the occurrence of a failure in the equipment mounted on the vehicle 100. , And the driving environment information indicating the driving environment of the vehicle 100 is collected and transmitted to the mobile information terminal 200. The mobile information terminal 200 that has received the vehicle information, the driving tendency information, and the vehicle environment information transfers them to the server 500. Then, the server 500 that has received the vehicle information, the driving tendency information, and the driving environment information creates a record in which the vehicle information, the driving tendency information, and the driving environment information are associated with the failure ID that can identify the failure, and causes the failure. It is sequentially stored and stored in the information DB 560. Therefore, by referring to the failure information DB 560 of the server 500, it is possible to grasp in what state the vehicle 100 is likely to cause a failure with respect to the failure specified by the failure ID. In addition, since failure information is sequentially accumulated when a failure occurs, it is possible to enhance materials for determining what kind of failure is likely to occur in what state.

FIG. 9 shows an example of a correction value setting process repeatedly executed by the processor 180A of the central gateway 180, the mobile information terminal 200, and the server 500 at a second predetermined time interval. Here, the second predetermined time can be, for example, a time at which it is assumed that new failure information will be accumulated to some extent. Further, the processor 180A of the central gateway 180, the mobile information terminal 200, and the server 500 execute the correction value setting process according to the application program installed in advance.

In step 30, the server 500 refers to the driving tendency DB 520, the driving environment DB 540, and the failure information DB 560, respectively, for each vehicle 100 to be managed, and corrects a predetermined threshold value that defines the timing for generating the maintenance information of the vehicle 100. Find the correction value for. Specifically, the server 500 refers to the driving tendency information and the driving environment information stored in the driving tendency DB 520 and the driving environment DB 540, and analyzes the driving tendency of the driver of the vehicle 100 and the driving environment of the vehicle 100. Then, the server 500 further refers to the past failure information stored in the failure information DB 560, and determines what kind of failure may occur if the driving tendency and the driving environment are according to the analysis result. It is specified, and a correction value for correcting a predetermined threshold value is obtained in consideration of the possibility. For example, when the engine oil is changed when the mileage exceeds 10,000 km, if 1000 km is required as a correction value according to the driving tendency and the driving environment, the engine oil is obtained when the mileage exceeds 9000 km. Maintenance information prompting for replacement is generated.

In step 31, the server 500 transmits the correction value to the mobile information terminal 200 for each vehicle 100 to be managed by using the mobile communication system. After that, the server 500 ends the correction value setting process.

In step 32, the mobile information terminal 200 that has received the correction value from the server 500 transfers the correction value to the processor 180A of the central gateway 180 by using short-range wireless communication. After that, the mobile information terminal 200 ends the correction value setting process.

In step 33, the processor 180A of the central gateway 180 that has received the correction value from the mobile information terminal 200 stores the correction value in the non-volatile memory 180B. Therefore, the processor 180A of the central gateway 180 can use the latest correction value at any time by referring to the non-volatile memory 180B. After that, the processor 180A of the central gateway 180 ends the correction value setting process.

According to the correction value setting process, a correction for correcting a predetermined threshold value that defines a timing for generating maintenance information in each vehicle 100 according to a driving tendency, a driving environment, and past failure information every second predetermined time. A value is calculated and this is transmitted to the mobile information terminal 200. The mobile information terminal 200 that has received the correction value transfers the correction value to the processor 180A of the central gateway 180. Then, the processor 180A of the central gateway 180 that has received the correction value stores the correction value in the non-volatile memory 180B so that the latest correction value can be referred to at an arbitrary time.

FIG. 10 shows an example of maintenance information generation processing that the processor 180A of the central gateway 180 repeatedly executes at a third predetermined time. Here, the third predetermined time can be determined in consideration of the processing load of the central gateway 180, for example, every hour. Further, the processor 180A of the central gateway 180 executes the maintenance information generation process according to the application program installed in advance. The processor 180A of the central gateway 180 has a function of generating maintenance information related to the vehicle information when the vehicle information indicating the change with time exceeds a predetermined threshold value by executing a part of the maintenance information generation process. Implement.

In step 40, the processor 180A of the central gateway 180 reads and collects vehicle information indicating a change with time of the vehicle 100 from a plurality of electronic control devices 120 mounted on the vehicle 100.

In step 41, the processor 180A of the central gateway 180 refers to the correction value stored in the non-volatile memory 180B for the maintenance information related to the vehicle information, and corrects a predetermined threshold value that defines the timing for generating the maintenance information. Correct with.

In step 42, the processor 180A of the central gateway 180 determines whether or not the vehicle information exceeds the corrected predetermined threshold value, that is, whether or not it is time to generate maintenance information related to the vehicle information. Then, if the processor 180A of the central gateway 180 determines that the vehicle information exceeds the corrected predetermined threshold value (Yes), the process proceeds to step 43. On the other hand, if the processor 180A of the central gateway 180 determines that the vehicle information does not exceed the corrected predetermined threshold value (No), the maintenance information generation process is terminated.

In step 43, the processor 180A of the central gateway 180 generates maintenance information related to the vehicle information, for example, prompting the engine oil change when the mileage exceeds the corrected predetermined threshold value.

In step 44, the processor 180A of the central gateway 180 displays the generated maintenance information. Specifically, the processor 180A of the central gateway 180 displays maintenance information on the display device of the in-vehicle information communication system 140 mounted on the vehicle 100, or displays maintenance information on the multi-display incorporated in the instrument panel. Can be done. Further, when the processor 180A of the central gateway 180 is not equipped with a display device suitable for displaying maintenance information, the processor 180A transmits the maintenance information to the mobile information terminal 200 and causes the display to display the maintenance information. May be good. After that, the processor 180A of the central gateway 180 ends the maintenance information generation process.

According to the maintenance information generation process, a predetermined threshold value that defines the timing for generating maintenance information related to the vehicle information indicating the change over time of the vehicle 100 is obtained from the driving tendency information, the driving environment information, and the past failure information. It is corrected by the correction value. Then, if the vehicle information exceeds the corrected predetermined threshold value, maintenance information related to the vehicle information is generated and displayed. Therefore, for example, for a vehicle 100 driven by a driver who tends to drive suddenly, maintenance information prompting maintenance of tires, suspensions, rubber bushes, etc. is generated and displayed at a time earlier than the standard timing. Therefore, maintenance information can be generated and displayed at an appropriate time that changes according to the driving tendency and the driving environment. Therefore, by receiving appropriate maintenance in response to the display of maintenance information, it is possible to prevent an actual failure from occurring.

When the MIL (Malfunction Indicator Lamp) was temporarily lit, the cause could not be determined without reading the failure information using a diagnostic machine at a maintenance shop or dealer in the conventional technology, but the failure of the server 500 The cause can be determined by referring to the failure information stored in the information DB 560. Further, in the conventional technology, the cause of failure may not be analyzed unless the product is collected, but the cause can be determined by referring to the failure information stored in the failure information DB 560 of the server 500, and the product can be determined. It is also possible to reduce the risk of collection and return of the product. As a result, it is possible to reduce the burden on the manufacturer and the parts supplier due to the collection and return of the product.

As autonomous driving becomes more widespread in the future, it is expected that a vehicle 100 without a driver will travel. In this case, in the conventional technique, the driver can notice the failure, but in the vehicle 100 without the driver, it becomes difficult to notice the failure. However, when a failure occurs, the failure information is automatically accumulated. Therefore, by referring to the failure information at appropriate time intervals and performing appropriate maintenance as necessary to prevent the failure, the operation of the vehicle 100 is performed. Can improve the safety of.

When a failure occurs in the device mounted on the vehicle 100, as shown in FIG. 11, a failure occurrence notification screen that presents the failure location, the failure code, and the countermeasure may be displayed on the display device. In this case, it may be possible to specify whether or not to automatically request repairs to a maintenance shop, a repair shop, a dealer, etc. designated in advance on the failure occurrence notification screen. It is transmitted to a computer 600 installed in a maintenance shop, a dealer, or the like via a base station 300 and an information communication network 400. Then, in response to a contact from a maintenance shop, a dealer, or the like, the mobile information terminal 200 can be used to make a reservation for the maintenance date and time.

In addition, if you want to display the details of the failure location, failure code, and countermeasures on the failure occurrence notification screen, you can click the detail button on the failure occurrence notification screen to install it in, for example, a maintenance shop or a dealer. Detailed information is transmitted from the computer 600, and this can be displayed and confirmed. As shown in FIG. 12, the failure occurrence notification screen may be configured to include a pictogram (pictogram) or the like that can be recognized at a glance.

On the other hand, workers such as maintenance shops and dealers operate the computer 600 and refer to the failure information DB 560 of the server 500 via the information communication network 400 before the vehicle 100 is stored, thereby causing the failure details and failure. It is possible to grasp at an early stage what kind of state the vehicle 100 was at the time of occurrence. Then, when a replacement part for repairing the failure is required, if the part is out of stock, it can be ordered and prepared in advance, so that when the vehicle 100 in which the failure occurs is received, maintenance can be performed immediately. It can be started and the time required for maintenance can be shortened.

The storage and storage of driving tendency information, driving environment information and failure information, and the generation of correction values are not limited to the server 500, but may be performed by a portable information terminal 200 having a larger storage capacity and higher processing capacity than the central gateway 180. .. In this case, since the failure information is stored in the mobile information terminal 200, the failure details can be easily and surely described by presenting the failure information stored in the mobile information terminal 200 to a worker such as a maintenance shop or a dealer. I can tell.

Further, the transmission of driving tendency information, driving environment information and failure information, and the generation and correction of maintenance information are not limited to the central gateway 180, but the electronic control device 120 mounted on the vehicle 100, the in-vehicle information communication system 140 and telematics. It can also be done on system 160. Further, the correction value for correcting the maintenance information can be obtained from at least the driving tendency information among the driving tendency information and the driving environment information.

When the vehicle 100 is not provided with a means for collecting the driving tendency information indicating the driving tendency of the driver of the vehicle 100 and the driving environment information indicating the driving environment of the vehicle 100, for example, GPS (Global Positioning System), a gyro sensor , The portable information terminal 200 having a function of connecting to the Internet may collect these. In this case, the mobile information terminal 200 collects driving tendency information and driving environment information on behalf of the central gateway 180 mounted on the vehicle 100, and uses the mobile communication system to collect the collected driving tendency information and driving environment information. It can be sent to the server 500.

If a person skilled in the art is a person skilled in the art, a new embodiment may be used by omitting a part of the technical ideas of the above-described embodiments, combining a part thereof, or replacing a part thereof. It will be easy to understand that it can produce.

100 vehicles (cars)
180 Central gateway (electronic control device)
200 mobile information terminal

Claims (6)

An electronic control device for automobiles equipped with a function for short-range wireless communication with a mobile information terminal and a function for generating maintenance information related to the vehicle information when the vehicle information indicating a change over time exceeds a predetermined threshold value. There,
The driving tendency information indicating the driving tendency of the driver is collected and transmitted to the mobile information terminal, and the correction value obtained from the driving tendency information and the past failure information is received from the mobile information terminal and used as the correction value. The predetermined threshold is corrected accordingly.
Electronic control device for automobiles. In addition to the driving tendency information, the driving environment information indicating the driving environment of the vehicle is collected and transmitted to the mobile information terminal, and the correction value obtained from the driving tendency information, the driving environment information and the past failure information is obtained. Received from the mobile information terminal and corrects the predetermined threshold value according to the correction value.
The electronic control device for an automobile according to claim 1. When a failure occurs in a device mounted on a vehicle, the failure information including the information that can identify the failure, the vehicle information, the driving tendency information, and the driving environment information is transmitted to the mobile information terminal.
The electronic control device for an automobile according to claim 2. Displaying the maintenance information on an in-vehicle display device,
The electronic control device for an automobile according to any one of claims 1 to 3. The maintenance information is transmitted to the mobile information terminal and displayed.
The electronic control device for an automobile according to any one of claims 1 to 3. An electronic control device for automobiles having a function of wirelessly communicating with an information processing device and a function of generating maintenance information related to the vehicle information when the vehicle information indicating a change over time exceeds a predetermined threshold value. ,
The driving tendency information indicating the driving tendency of the driver is collected and transmitted to the information processing device, and the correction value obtained from the driving tendency information and the past failure information is received from the information processing device and used as the correction value. The predetermined threshold is corrected accordingly.
Electronic control device for automobiles.

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