CN116782293A - Control system, control method of control system, electronic device, and recording medium - Google Patents

Abstract

The invention provides a control system, a control method of the control system, an electronic device and a recording medium. The control system (1) is provided with: a first electronic device (38); -a second electronic device (2) receiving Vehicle Data (VD) related to the vehicle (V) from the first electronic device (38); a communication device (12) that transmits the vehicle data (TD) received by the second electronic apparatus (2) to an external device (38) of the vehicle (V); a determination unit (201) that determines whether or not to transmit the Vehicle Data (VD) to the external device (38); and an applying unit (302), wherein when the determining unit (201) determines that the Vehicle Data (VD) is transmitted to the external device (38), the applying unit (302) applies the Time Data (TD) to the Vehicle Data (VD) transmitted to the external device (39).

Description

Control system, control method of control system, electronic device, and recording medium

Technical Field

The invention relates to a control system, a control method of the control system, an electronic device, and a recording medium.

Background

In recent years, efforts to provide access to sustainable transportation systems that people even in traffic participants are in a fragile standpoint have been active. With this realization, research and development are being conducted to further improve traffic safety and convenience. Conventionally, as a technique for further improving the safety and convenience of traffic, a technique is known in which a vehicle transmits vehicle data related to the vehicle to an external device (for example, patent literature 1). Patent document 1 discloses a technique in which a data collection device mounted on a vehicle transmits CAN data representing vehicle information about the vehicle to a vehicle data management device.

Prior art literature

Patent literature

Patent document 1: japanese patent application laid-open No. 2021-138210

Disclosure of Invention

Problems to be solved by the invention

However, in order to avoid restrictions on the use of vehicle data in an external device of the vehicle, it is desirable to assign time data to the vehicle data. However, if the time data is provided to all the vehicle data, there is a problem that the traffic volume in the vehicle increases.

Accordingly, an object of the present invention is to enable transmission of easily available vehicle data to an external device of a vehicle while suppressing an increase in traffic volume in the vehicle.

Means for solving the problems

One aspect of the present invention is a control system provided in a vehicle, including: a first electronic device; a second electronic device that receives vehicle data related to the vehicle from the first electronic device; a communication device that transmits the vehicle data received by the second electronic apparatus to an external device of the vehicle; a determination unit that determines whether or not to transmit the vehicle data to the external device; and a giving unit that gives time data to the vehicle data transmitted to the external device when the determination unit determines that the vehicle data is transmitted to the external device.

Effects of the invention

According to one aspect of the present invention, it is possible to transmit vehicle data that is easy to use to an external device of a vehicle while suppressing an increase in traffic volume in the vehicle.

Drawings

Fig. 1 is a diagram showing a control system of a vehicle.

Fig. 2 is a block diagram showing a main part structure of the control system.

Fig. 3 is a diagram showing a data structure of packed data.

Fig. 4 is a flowchart showing the operations of the central ECU and the connection ECU.

Fig. 5 is a flowchart showing the operation of the central ECU.

Fig. 6 is a block diagram showing the main part structure of the control system.

Fig. 7 is a flowchart showing the operation of the central ECU.

Fig. 8 is a flowchart showing the operation of the central ECU.

Description of the reference numerals

A1 … control system, a2 … center ECU (second electronic device, electronic device), a 3a … first communication line, a 4 … second communication line, a 4a … second communication line, a 4B … second communication line, a 4C … second communication line, a 12 … TCU (communication device), a 14 … GNSS sensor (output device), a 23 … area a ECU (first electronic device), a 24 … area B ECU (first electronic device), a 29 … area C ECU (first electronic device), a 38 … connection ECU (first electronic device), a 39 … external device, a 200 … first processor (processor), a 201 … determination unit, a 202 … instruction unit, a 203 … generation unit, a 204 … first reception unit, a 205 … first transmission unit, a 206 … application unit, a 210 … first memory (storage unit), a … first control program (program), a 300 … second processor, a 301 … second reception unit, a … data acquisition unit …, a … data storage unit … V311, a 300 VD … second transmission program, a … second data acquisition unit, a vehicle data acquisition unit …, a data storage unit … V, and a data storage unit ….

Detailed Description

Fig. 1 is a diagram showing a control system 1 of a vehicle.

The control system 1 includes a central ECU2 that performs control and information processing of the entire vehicle. The central ECU2 is connected to communication lines including a first communication line 3a and second communication lines 4a, 4b, 4 c. The central ECU2 realizes a gateway function for managing transmission and reception of communication data between these communication lines. In addition, the central ECU2 performs OTA (Over The Air) management. The OTA management includes control related to a process of downloading an update program of an in-vehicle device provided in the vehicle from a server outside the vehicle, and a process of applying the downloaded update program to the in-vehicle device.

The first communication line 3a and the second communication lines 4a, 4b, and 4c are each constituted by a bus for performing communication conforming to standards such as CAN and Ethernet (registered trademark), or a communication line for performing P2P (Peer to Peer) communication. The second communication lines 4a, 4b, and 4c may be constituted by a plurality of communication lines for performing communication conforming to the same standard, or may be constituted by a plurality of communication lines for performing communication conforming to different standards.

A TCU (Telematics Control Unit: telematics control unit) 12 is connected to the first communication line 3 a. The TCU12 is a wireless communication device conforming to the communication standard of the mobile communication system. The ECU is connected to the central ECU2. Examples of the ECU connected to the central ECU2 include an ICB, a rear camera, a speaker, a microphone, an instrument panel, a steering switch, a TCU12, a V2X (Vehicle to Everything: vehicle-to-everything) communication device, a GNSS sensor 14, and a touch panel. The V2X communication device 13 performs inter-vehicle communication and/or road-to-vehicle communication. The touch panel 15 includes a display 16 and a touch sensor 17.

The ICB is IVI (In-Vehicle Infotainment: in-vehicle infotainment system) -ECU. The ICB provides various information and entertainment to the occupant of the vehicle using a speaker, microphone, GNSS sensor 14, touch panel, and the like.

The area a ECU23 is connected to the second communication line 4 a. A plurality of ECUs are connected to the area a ECU23.

The area B ECU24 is connected to the second communication line 4B. A plurality of ECUs are connected to the area B ECU24. As the ECU connected to the area B ECU24, a driving device, a battery, a steering operator, and a VSA (Vehicle Stability Asist: vehicle stability assist) device are exemplified. The steering operator may also include a brake, an accelerator, an EPS (Electric Power Steering: electric power steering), or the like. The driving device is, for example, a motor or an internal combustion engine that drives the vehicle.

The area C ECU29 is connected to the second communication line 4C. A plurality of ECUs are connected to the area C ECU29. As the ECU connected to the area C ECU29, a lamp and a window motor are exemplified. Examples of the lamp body include a headlight, a taillight, a direction indicator, and the like. The window motor opens and closes a window. The ECU connected to the area C ECU29 includes, for example, a door sensor, a door lock mechanism, an ESL (Electronic Steering Lock: electronic steering lock), and an air conditioner. The door sensor detects an operation of the vehicle door. The door lock mechanism locks and unlocks a door of the vehicle. As an ECU connected to the area C ECU29, an LF/RF antenna that wirelessly communicates with an electronic key of the own vehicle is exemplified. An electronic key is an electronic device having a wireless communication function, and is called a smart key or a FOB key.

The area a ECU23, the area B ECU24, and the area C ECU29 are ECUs connected to the central ECU2. Therefore, in the following description, the reference numerals "38" are given to "connection ECU" without distinguishing the area a ECU23, the area B ECU24, and the area C ECU29.

Fig. 2 is a block diagram showing the main part structure of the control system 1.

The central ECU2 is connected to the first communication line 3a and the TCU12. The central ECU2 is connected to the GNSS sensor 14. The central ECU2 is connected to the connection ECU38 via the second communication line 4. The second communication line 4 is a representation that does not distinguish between the second communication lines 4a, 4b, 4 c. The communication standard of the first communication line 3a exemplifies Ethernet (Ethernet). The communication standard of the second communication line 4 is exemplified by CAN (Controller Area Network: controller area network). In addition, the communication band of the first communication line 3a is wider than the communication band of the second communication line 4.

The central ECU2 corresponds to "a second electronic device" of the present disclosure. The connection ECU38 corresponds to "a first electronic device" of the present disclosure. The TCU12 corresponds to a "communication device" of the present disclosure. The GNSS sensor 14 corresponds to an "output device" of the present disclosure.

The TCU12 communicates with an external device 39 connected to the communication network NW. The external device 39 is, for example, a server device having the vehicle V as a client. The communication network NW is constituted by a public line network, a private line, other communication circuits, and the like. The TCU12 transmits the packetized data PD generated by the central ECU2 to the external device 39. The details of the packed data PD will be described later.

The GNSS sensor 14 transmits time data TD indicating the current time acquired from the GNSS satellites to the central ECU2 and the connection ECU38. The GNSS sensor 14 transmits the time of day data TD periodically (e.g., every 1 second).

The connection ECU38 includes an interface circuit to which a second processor 300 such as a CPU (Central Processing Unit: central processing unit), an MPU (Micro Processor Unit: microprocessor unit), a second memory 310, and devices such as devices and sensors are connected.

The second memory 310 is a storage device for nonvolatile storage of programs and data executed by the second processor 300. The second Memory 310 is constituted by a semiconductor Memory element such as a magnetic Memory device or a flash ROM (Read Only Memory), or by another kind of nonvolatile Memory device. The second memory 310 may include RAM (Random Access Memory: random access memory) constituting a work area of the second processor 300. The first memory 210 may include nonvolatile memory devices such as an HDD (Hard Disk Drive) and an SSD (Solid State Drive) as well. The second memory 310 stores data processed by the second processor 300, and a second control program 311 executed by the second processor 300.

The second processor 300 functions as the second receiving unit 301, the vehicle data acquiring unit 302, the applying unit 303, and the second transmitting unit 304 by reading and executing the second control program 311 stored in the second memory 310.

The second receiving section 301 corresponds to a "receiving section" of the present disclosure.

The second receiving unit 301 receives the time data TD from the GNSS sensor 14 via the central ECU2. The second receiving unit 301 receives instruction information described later from the central ECU2.

The vehicle data acquisition unit 302 acquires vehicle data VD relating to the vehicle V having the control system 1. The type of the vehicle data VD acquired by the vehicle data acquisition unit 302 varies depending on the connection ECU38. For example, the vehicle data acquisition unit 302 of the region CECU29 acquires vehicle data VD indicating the operation state of the device from each device connected to the region C ECU29.

The adding unit 303 adds the time data TD received by the second receiving unit 301 to the vehicle data VD acquired by the vehicle data acquiring unit 302.

Specifically, the applying unit 303 generates the vehicle data frame F1 in which the vehicle data VD acquired by the vehicle data acquiring unit 302 is recorded. The vehicle data frame F1 is a frame conforming to the communication standard of CAN. The adding unit 303 generates a time data frame F2 in which the time data TD received by the second receiving unit 301 is recorded. The time data frame F2 is a frame conforming to the CAN communication standard. The giving unit 303 associates the generated time data frame F2 with the generated vehicle data frame F1. By this association process, the assigning unit 303 assigns the time data TD received by the second receiving unit 301 to the vehicle data VD acquired by the vehicle data acquiring unit 302.

The second transmitting unit 304 transmits the vehicle data VD to which the time data TD is added by the adding unit 303 to the central ECU2.

Specifically, the second transmitting unit 304 transmits the vehicle data frame F1 associated with the time data frame F2 to the central ECU2.

The central ECU2 includes an interface circuit to which a first processor 200 such as a CPU and an MPU, a first memory 210, and devices such as a device and a sensor are connected.

The first memory 210 is a storage device that stores programs and data executed by the first processor 200 in a nonvolatile manner. The first memory 210 is constituted by a semiconductor memory element such as a magnetic memory device or a flash ROM, or by another kind of nonvolatile memory device. The first memory 210 may include a RAM constituting a work area of the first processor 200. The first memory 210 may include a nonvolatile memory device such as an HDD or an SSD. The first memory 210 stores data processed by the first processor 200, and a first control program 211 executed by the first processor 200.

The first processor 200 reads and executes the first control program 211 stored in the first memory 210, and thereby functions as the determination unit 201, the instruction unit 202, the generation unit 203, the first reception unit 204, and the first transmission unit 205.

The determination unit 201 determines whether to transmit the vehicle data VD to the external device 39. When a request for transmitting the vehicle data VD is made from the external device 39 to the vehicle V, the determination unit 201 determines that the time data TD is to be added to the vehicle data VD.

When the determination unit 201 determines that the vehicle data VD is transmitted to the external device 39, the instruction unit 202 instructs the connection ECU38 to give the time data TD to the vehicle data VD. Specifically, when the determination unit 201 determines that the vehicle data VD is transmitted to the external device 39, the instruction unit 202 transmits instruction information to the connection ECU38. The instruction information is information that instructs the vehicle data VD to be given time data TD.

The generating section 203 generates the packed data PD. The packed data PD is data obtained by packing one or more of the vehicle data VD and the time data TD. The details of the packed data PD will be described with reference to fig. 3.

Fig. 3 is a diagram showing a data structure of the packed data PD.

The packet data PD of the present embodiment has a header and a payload conforming to the Ethernet standard. The header of the packed data PD includes an Ethernet header, an IP header, and a UDP header. One or more combinations of the vehicle data frame F1 and the time data frame F2 are recorded in the payload of the packed data PD.

The vehicle data frame F1 has a PDU (Protocol Data Unit: protocol data unit) header and a payload recorded with the vehicle data VD. The time data frame F2 has a PDU header and a payload in which time data TD is recorded.

The vehicle data frame F1 and the time data frame F2 are associated with each other by a value recorded in the PDU header.

The generating unit 203 generates the packed data PD by recording the vehicle data frame F1 associated with the time data frame F2 in the payload of the packed data PD. In the present embodiment, the frame recorded in the packet data PD by the generating unit 203 is a frame received by the first receiving unit 204 from the connection ECU38.

The first receiving unit 204 receives the time data TD from the GNSS sensor 14. Further, the first receiving unit 204 receives a combination of the vehicle data frame F1 and the time data frame F2 from the connection ECU38.

The first transmitting section 205 transmits the packed data PD generated by the generating section 203 to the TCU12. The TCU12 transmits the packetized data PD received from the central ECU2 to the external device 39. The first transmitting unit 205 transmits the time data TD received by the first receiving unit 204 to the connection ECU38.

Next, the operation of each unit of the control system 1 will be described.

Fig. 4 is a flowchart showing the operations of the central ECU2 and the connection ECU38.

In fig. 4, a flowchart FA shows the operation of the central ECU2, and a flowchart FB shows the operation of the connection ECU38.

As shown in the flowchart FA, the determination unit 201 determines whether or not to transmit the vehicle data VD to the external device 39 (step SA 1). When determining that the vehicle data VD is not to be transmitted to the external device 39 (step SA1: no), the determining unit 201 performs the determination of step SA1 again.

On the other hand, when the determination unit 201 determines that the vehicle data VD is transmitted to the external device 39 (step SA1: yes), the instruction unit 202 transmits instruction information to the connection ECU38 (step SA 2).

As shown in flowchart FB, the second receiving section 301 receives instruction information from the connection ECU38 (step SB 1).

Next, the applying unit 303 starts applying the time data TD to the vehicle data VD (step SB 2).

After step SB2, each time the vehicle data acquisition unit 302 acquires the vehicle data VD, the connection ECU38 transmits the vehicle data VD to which the time data TD is added to the central ECU2.

Next, the operation of the central ECU2 related to the packed data PD after the start of the application of the time data TD will be described.

Fig. 5 is a flowchart FC showing the operation of the central ECU2.

The first receiving unit 204 determines whether or not a combination of the vehicle data frame F1 and the time data frame F2 is received from the connection ECU38 (step SC 1). That is, in step SC1, the first receiving unit 204 determines whether or not the vehicle data VD to which the time data TD is added is received from the connection ECU38.

When the first receiving unit 204 determines that the combination of the vehicle data frame F1 and the time data frame F2 is not received (no at step SC 1), the first processor 200 performs the processing at step SC 3.

On the other hand, when it is determined that the combination of the vehicle data frame F1 and the time data frame F2 is received (yes in step SC 1), the first receiving unit 204 records the received combination in the first memory 210 (step SC 2).

Next, the generating unit 203 determines whether or not to generate the packed data PD (step SC 3). For example, when the first receiving unit 204 receives a predetermined number of vehicle data VD, the generating unit 203 determines to generate the package data PD.

When the generation unit 203 determines that the packed data PD is not generated (step SC2: no), the first processor 200 returns the process to step SC1.

On the other hand, when it is determined that the packed data PD is generated (yes in step SC 3), the generation unit 203 generates the packed data PD (step SC 4). The payload of the packet data PD generated in step SC4 contains one or more combinations of the vehicle data frame F1 and the time data frame F2 recorded in step SC 2.

Next, the first transmitting unit 205 transmits the packed data PD generated by the generating unit 203 to the TCU12 (step SC 5).

As described above, the time data TD is packed in the packed data PD. In this way, by including the time data TD in the package data PD, when events (failure detection of the connection ECU38, driving state detection of the driver, use frequency/use time of content used in the ICB, vehicle position, variation in vehicle speed, and the like) occurring in the respective connection ECUs 38 connected to the central ECU2 are set as the vehicle data VD, the data of these events can be used more easily as data.

Next, a second embodiment will be described.

The structure of the second embodiment is denoted by the same reference numerals as those of the first embodiment, and detailed description thereof is omitted.

Fig. 6 is a block diagram showing the main part structure of the control system 1 of the second embodiment.

In the present embodiment, the central ECU2 corresponds to the "second electronic device" and the "electronic device" of the present disclosure. In the present embodiment, the first processor 200 corresponds to a "processor" of the present disclosure. In the present embodiment, the first control program 211 corresponds to a "program" of the present disclosure. In the present embodiment, the first memory 210 corresponds to a "storage unit" of the present disclosure.

The GNSS sensor 14 of the present embodiment outputs the time data TD to the central ECU2.

The second processor 300 of the present embodiment reads and executes the second control program 311 to function as the vehicle data acquisition unit 302 and the second transmission unit 304. That is, the second processor 300 of the present embodiment does not function as the second receiving unit 301 and the applying unit 303.

The second transmitting unit 304 of the present embodiment transmits the vehicle data VD acquired by the vehicle data acquiring unit 302 to the central ECU2.

Specifically, the second transmitting unit 304 generates a vehicle data frame F1 in which the vehicle data VD acquired by the vehicle data acquiring unit 302 is recorded, and transmits the generated vehicle data frame F1 to the central ECU2.

The first processor 200 of the present embodiment functions as the determination unit 201, the application unit 206, the generation unit 203, the first reception unit 204, and the first transmission unit 205 by reading and executing the first control program 211 stored in the first memory 210.

The adding unit 206 receives the vehicle data VD from the connection ECU38, and adds the time data TD received by the first receiving unit 204 to the received vehicle data VD.

Specifically, the giving unit 206 generates a time data frame F2 in which the time data TD received by the first receiving unit 204 is recorded, and associates the generated time data frame F2 with the vehicle data frame F1 received from the connection ECU38.

When associating the time data frame F2 with the vehicle data frame F1, the adding unit 206 records the vehicle data frame F1 associated with the time data frame F2 in the first memory 210.

The generating unit 203 of the present embodiment generates the packed data PD by recording the vehicle data frame F1 associated with the time data frame F2 in the payload of the packed data PD. The frame recorded in the packed data PD by the generating unit 203 of the present embodiment is a frame associated by the adding unit 206.

The first receiving unit 204 of the present embodiment receives the time data TD from the GNSS sensor 14. The first receiving unit 204 of the present embodiment receives the vehicle data frame F1 from the connection ECU38.

Next, the operation of each unit of the control system 1 in the second embodiment will be described.

Fig. 7 is a flowchart FD showing the operation of the central ECU2.

As shown in the flowchart FA, the determination unit 201 determines whether or not to transmit the vehicle data VD to the external device 39 (step SD 1). When determining that the vehicle data VD is not to be transmitted to the external device 39 (step SD1: no), the determining unit 201 performs the determination of step SD1 again.

On the other hand, when the determination unit 201 determines that the vehicle data VD is transmitted to the external device 39 (yes in step SD 1), the application unit 206 starts to apply the time data TD to the vehicle data VD (step SD 2).

After step SD2, the central ECU2 gives the time data TD to the vehicle data VD received from the connection ECU38. That is, after step SD2, the central ECU2 associates the time data frame F2 with the vehicle data frame F1 received from the connection ECU38.

Next, the operation of the central ECU2 related to the packed data PD after the start of the application of the time data TD will be described.

Fig. 8 is a flowchart FE showing the operation of the central ECU2.

As shown in flowchart FD, first receiving unit 204 determines whether or not vehicle data frame F1 is received from connection ECU38 (step SE 1). That is, in step SE1, the first receiving unit 204 determines whether or not the vehicle data VD is received from the connection ECU38.

When it is determined that the vehicle data frame F1 has not been received from the connection ECU38 (step SE1: no), the first receiving unit 204 performs the determination of step SE3 again.

On the other hand, when the first receiving unit 204 determines that the vehicle data frame F1 is received from the connection ECU38 (yes in step SE 3), the adding unit 206 associates the vehicle data frame F1 received from the connection ECU38 with the time data frame F2 in which the time data TD indicating the time of receiving the vehicle data frame F1 is recorded, and records the time data frame in the first memory 210 (step SE 2).

Next, the generating unit 203 determines whether or not to generate the packed data PD (step SE 3). When the generation unit 203 determines that the packed data PD is not generated (step SE3: no), the first processor 200 returns the process to step SE1.

On the other hand, when it is determined that the packed data PD is generated (yes in step SE 3), the generation unit 203 generates the packed data PD (step SE 4). In step SE4, the generation unit 203 generates the package data PD in which a combination of the vehicle data frame F1 and the time data frame F2 recorded in the first memory 210 until the affirmative determination is made in step SE3 is recorded.

Next, the first transmitting unit 205 transmits the packed data PD generated by the generating unit 203 to the TCU12 (step SE 5).

The above embodiments are merely examples, and can be arbitrarily modified and applied.

In the above embodiments, the following structure is adopted: one packet data PD contains a vehicle data frame F1 and a time data frame F2. In other embodiments, the following structure is also possible: two kinds of packed data PD including only the vehicle data frame F1 and only the time data frame F2 are generated, and the two kinds of packed data PD are continuously transmitted to the external device 39.

In the first embodiment described above, the following structure is adopted: when the instruction unit 202 instructs the connection ECU38, the connection ECU38 gives the time data TD to the vehicle data VD. In the case of this structure, there may be the following cases: after the connection ECU38 transmits the vehicle data VD to the central ECU2, the instruction unit 202 instructs the connection ECU38 to give the time data TD.

Therefore, in the above-described case, the assigning unit 303 in the other embodiment assigns the first time data TD corresponding to the first vehicle data VD transmitted to the central ECU2 to the second vehicle data VD, which is the data transmitted to the central ECU2 after the first vehicle data VD. The second transmitting unit 304 transmits the second vehicle data VD to which the first time data TD is added to the central ECU2. When there is the vehicle data VD continuously transmitted from the second vehicle data VD, the connection ECU38 gives the nth-1 time data TD corresponding to the nth-1 vehicle data VD to the nth vehicle data VD, and transmits the nth vehicle data VD to the central ECU2. Here, N is an integer of 3 or more.

According to this other embodiment, even when the connection ECU38 transmits the vehicle data VD to the central ECU2 without giving the time data TD, the time data TD corresponding to the transmitted vehicle data VD can be transmitted to the central ECU2. Therefore, even in the case where the connection ECU38 transmits the vehicle data VD to the central ECU2 without giving the time data TD, the central ECU2 can receive the time data TD corresponding to the already received vehicle data VD. Therefore, even when the connection ECU38 transmits the vehicle data VD to the central ECU2 without giving the time data TD, the control system 1 can transmit the readily available data to the external device 39.

In the above embodiments, the central ECU2 generates the package data PD. However, the packed data PD may also be generated by the TCU12. With this structure, the central ECU2 communicates with the TCU12 in compliance with the CAN standard. In the first embodiment of this configuration, the central ECU2 transmits the vehicle data frame F1 and the time data frame F2 received from the connection ECU38 to the TCU12. In addition, in the second embodiment of the structure, the central ECU2 transmits the vehicle data frame F1 and the time data frame F2 to the TCU12. In the second embodiment of this configuration, the central ECU2 may have the following configuration: the time data TD indicating the time when the vehicle data frame F1 is transmitted is given to the vehicle data VD. Thus, it is unnecessary to store the time data TD in the first memory 210, and unnecessary use of the memory area of the first memory 210 can be avoided.

In other embodiments, the type of the vehicle data VD transmitted to the external device 39 may be specified by the external device 39. With this configuration, the control system 1 gives the time data TD to the vehicle data VD specified by the external device 39, and transmits the vehicle data VD of the type specified by the external device 39 to the external device 39.

In the above embodiments, the GNSS sensor 14 is exemplified as the "output device" of the present disclosure. However, in other embodiments, the "output device" of the present disclosure may also be a device other than the GNSS sensor 14. As the devices other than the GNSS sensor 14, a device incorporating a quartz resonator is exemplified.

The first processor 200 and the second processor 300 may be configured by a plurality of processors or may be configured by a single processor. The processors may also be hardware programmed to implement the functions of the processors described above. In this case, these processors are constituted by, for example, ASICs (Application Specific Integrated Circuit: application specific integrated circuits), FPGAs (Field Programmable Gate Array: field programmable gate arrays).

The respective units of the control system 1 shown in fig. 1 are examples, and the specific installation method is not particularly limited. That is, it is not necessarily required to install hardware corresponding to each of the respective units, and it is needless to say that the functions of each unit may be realized by executing a program by one processor. In the above-described embodiment, a part of the functions realized by the software may be realized by hardware, or a part of the functions realized by the hardware may be realized by software. The specific details of the other parts of the control system 1 may be arbitrarily changed without departing from the spirit of the present invention.

The steps of the operations shown in fig. 4, 5, 7, and 8 are divided according to the main processing contents, and the present invention is not limited to the method and name of dividing the processing units. Depending on the processing content, the processing may be divided into more steps. The division may be performed such that 1 step unit includes more processes. The order of the steps may be changed as appropriate within a range that does not hinder the gist of the present invention.

The first control program 211 may be implemented in a state where the first control program 211 is recorded on a removable information recording medium. Examples of the information recording medium include magnetic recording media such as hard disk, optical recording media such as CD, semiconductor storage devices such as USB (Universal Serial Bus: universal serial bus) memory and SSD (Solid State Drive: solid state disk), but other recording media may be used. The second control program 311 can be realized in a state where the second control program 311 is recorded on a removable information recording medium, similarly to the first control program 211.

The above embodiment supports the following structure.

(Structure 1)

A control system that is provided in a vehicle, the control system comprising: a first electronic device; a second electronic device that receives vehicle data related to the vehicle from the first electronic device; a communication device that transmits the vehicle data received by the second electronic apparatus to an external device of the vehicle; a determination unit that determines whether or not to transmit the vehicle data to the external device; and the giving unit gives time data to the vehicle data transmitted to the external device when the determining unit determines that the vehicle data is transmitted to the external device.

According to the control system of the configuration 1, since the time data is not given to all the vehicle data, it is possible to transmit the vehicle data that is easily used by the external device of the vehicle to the external device of the vehicle while suppressing an increase in the traffic volume in the vehicle.

(Structure 2)

The control system according to configuration 1, wherein the control system includes an output device that periodically outputs the time data, and the first electronic device includes: the vehicle data transmission device includes a receiving unit that receives the time data from the output device, and the assigning unit that assigns the time data received by the receiving unit to the vehicle data.

According to the control system of the configuration 2, since the output device is given time data that is periodically output, the first electronic device does not need to perform processing of requesting time data from the output device. Therefore, the processing load associated with the assignment of the time data can be reduced, and the increase in the communication traffic in the vehicle can be further suppressed.

(Structure 3)

The control system according to structure 2, wherein the second electronic device includes: the judging part; and an instruction unit that instructs the first electronic device to give the time data when the determination unit determines that the vehicle data is transmitted to the external device, and gives the time data to the vehicle data when the instruction unit instructs.

According to the control system of the configuration 3, the first electronic device gives the time data when instructed from the second electronic device, so that an increase in the traffic volume in the vehicle can be further suppressed.

(Structure 4)

The control system according to configuration 3, wherein when an instruction to give first time data corresponding to first vehicle data is issued from the instruction unit to the first electronic device after the first vehicle data is transmitted to the second electronic device, the giving unit gives the first time data to second vehicle data transmitted to the second electronic device after the first vehicle data.

According to the control system of the configuration 4, even in a case where the first electronic device transmits the vehicle data to the second electronic device without giving the time data, the second electronic device can receive the time data corresponding to the vehicle data that has been received. Therefore, even when the first electronic device transmits the vehicle data to the second electronic device without giving the time data, the control system can transmit the data that is easily utilized by the external device to the external device.

(Structure 5)

The control system according to configuration 1, wherein the second electronic device includes the determination unit and the application unit.

According to the control system of the configuration 5, by the processing of the second electronic device, it is possible to suppress an increase in the communication traffic in the vehicle, and to transmit the vehicle data that is easy to use to the external device of the vehicle.

(Structure 6)

The control system according to configuration 5, wherein the second electronic device includes a storage unit that stores the time data indicating a time when the vehicle data is received from the first electronic device, and the giving unit gives the time data stored in the storage unit to the vehicle data.

According to the control system of the configuration 6, by storing the time data, even if the time point at which the vehicle data is received and the time point at which the vehicle data is transmitted to the external device are separate time points, the vehicle data to which the appropriate time data is given can be transmitted to the external device.

(Structure 7)

The control system according to configuration 5, wherein the giving section gives the time data when the vehicle data is transmitted to the communication device.

According to the control system of the configuration 7, it is possible to avoid unnecessary use of the storage area of the second electronic device and to give the time data to the vehicle data.

(Structure 8)

The control system according to any one of structures 5 to 7, wherein a communication band of a first communication line in which the second electronic device communicates with the communication apparatus is wider than a communication band of a second communication line in which the first electronic device communicates with the second electronic device.

According to the control system of the configuration 8, although the communication traffic volume increases due to the addition of the time data, since the communication band between the first electronic device and the communication apparatus is wider than the communication band between the first electronic device and the second electronic device, it is possible to suppress the influence on the communication of the vehicle.

(Structure 9)

A control method for a control system provided in a vehicle, the control system comprising: a first electronic device; a second electronic device that receives vehicle data related to the vehicle from the first electronic device; and a communication device that transmits the vehicle data received by the second electronic apparatus to an external device of the vehicle, wherein in a control method of the control system, it is determined whether to transmit the vehicle data to the external device; when it is determined that the vehicle data is transmitted to the external device, time data is added to the vehicle data transmitted to the external device.

According to the control method of the control system of the configuration 9, the same effects as those of the control system of the configuration 1 are achieved.

(Structure 10)

An electronic device provided in a vehicle that communicates with an external device, the electronic device comprising: a determination unit that determines whether or not to transmit vehicle data relating to the vehicle to the external device; and a giving unit that gives time data to the vehicle data transmitted to the external device when the determination unit determines that the vehicle data is transmitted to the external device.

The electronic device according to the structure 10 has the same effects as the control system of the structure 1.

(Structure 11)

A recording medium having a program recorded thereon, wherein the program causes a processor of an electronic device included in a vehicle that communicates with an external device to function as a determination unit and a giving unit,

the determination portion determines whether to transmit vehicle data related to the vehicle to the external device,

when the determination unit determines that the vehicle data is to be transmitted to the external device, the application unit applies time data to the vehicle data transmitted to the external device.

According to the recording medium of the structure 11, the same effects as those of the control system of the structure 1 are achieved.

Claims (11)

1. A control system that is provided in a vehicle, the control system comprising:

a first electronic device;

a second electronic device that receives vehicle data related to the vehicle from the first electronic device;

a communication device that transmits the vehicle data received by the second electronic apparatus to an external device of the vehicle;

a determination unit that determines whether or not to transmit the vehicle data to the external device; and

and a giving unit that gives time data to the vehicle data transmitted to the external device when the determination unit determines that the vehicle data is transmitted to the external device.

2. The control system of claim 1, wherein,

the control system is provided with an output device for periodically outputting the time data,

the first electronic device is provided with: a receiving unit that receives the time data from the output device, and the giving unit,

the assigning unit assigns the time data received by the receiving unit to the vehicle data.

3. The control system of claim 2, wherein,

the second electronic device includes: the judging part; and an instruction unit that instructs the first electronic device to give the time data when the determination unit determines that the vehicle data is transmitted to the external device,

when the instruction unit instructs the vehicle, the application unit applies the time data to the vehicle data.

4. The control system of claim 3, wherein,

when an instruction to give the first time data corresponding to the first vehicle data is issued from the instruction unit to the first electronic device after the first vehicle data is transmitted to the second electronic device, the giving unit gives the first time data to the second vehicle data transmitted to the second electronic device after the first vehicle data.

5. The control system of claim 1, wherein,

the second electronic device includes the determination unit and the application unit.

6. The control system of claim 5, wherein,

the second electronic device is provided with a storage unit that stores the time data indicating a time at which the vehicle data is received from the first electronic device,

the giving section gives the time data stored in the storage section to the vehicle data.

7. The control system of claim 5, wherein,

the giving unit gives the time data when the vehicle data is transmitted to the communication device.

8. The control system according to any one of claims 5 to 7, wherein,

a communication band of a first communication line through which the second electronic device communicates with the communication apparatus is wider than a communication band of a second communication line through which the first electronic device communicates with the second electronic device.

9. A control method for a control system provided in a vehicle, the control system comprising: a first electronic device; a second electronic device that receives vehicle data related to the vehicle from the first electronic device; and a communication device that transmits the vehicle data received by the second electronic apparatus to an external device of the vehicle, wherein, in a control method of the control system,

determining whether to transmit the vehicle data to the external device;

when it is determined that the vehicle data is transmitted to the external device, time data is added to the vehicle data transmitted to the external device.

10. An electronic apparatus provided in a vehicle for communicating with an external device, wherein,

the electronic device is provided with:

a determination unit that determines whether or not to transmit vehicle data relating to the vehicle to the external device; and

and a giving unit that gives time data to the vehicle data transmitted to the external device when the determination unit determines that the vehicle data is transmitted to the external device.

11. A recording medium having a program recorded thereon, wherein,

the program causes a processor of an electronic device included in a vehicle that communicates with an external device to function as a determination unit and a giving unit,

the determination portion determines whether to transmit vehicle data related to the vehicle to the external device,

when the determination unit determines that the vehicle data is to be transmitted to the external device, the application unit applies time data to the vehicle data transmitted to the external device.