JP2019101641A - Automobile - Google Patents

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JP2019101641A
JP2019101641A JP2017230405A JP2017230405A JP2019101641A JP 2019101641 A JP2019101641 A JP 2019101641A JP 2017230405 A JP2017230405 A JP 2017230405A JP 2017230405 A JP2017230405 A JP 2017230405A JP 2019101641 A JP2019101641 A JP 2019101641A
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JP6977510B2 (en
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智也 片野田
Tomoya Katanoda
智也 片野田
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Toyota Motor Corp
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Abstract

To complement an inter-vehicle communication with much more information in a case where an automobile is incapable of communicating with a communication center having information.SOLUTION: A present vehicle (automobile) comprises a communication control unit for performing a communication with a communication center having information and an inter-vehicle communication. In a case where the automobile is incapable of communicating with the communication center, the communication control unit is capable of performing the inter-vehicle communication with the present vehicle and in a case where there are multiple other vehicles communicating with the communication center, the inter-vehicle communication is performed by selecting the other vehicle at the highest automatic driving level.SELECTED DRAWING: Figure 2

Description

本発明は、自動車に関する。   The present invention relates to motor vehicles.

従来、地図データベースを保有するセンタと車載端末との間で通信して車載端末の地図データを更新する地図データ更新システムにおける車載端末として、センタと通信して地図データの未更新部分を取得して更新すると共にその未更新部分を車車間通信して自車載端末と他車載端末との地図データの未更新部分を相互に補填するものが提案されている（例えば、特許文献１参照）。車載端末でこうした手法を用いることにより、センタの負荷を低減しつつ、地図データを更新できるようにしている。   Conventionally, as an in-vehicle terminal in a map data update system that communicates between a center that holds a map database and an in-vehicle terminal to update map data of the in-vehicle terminal, it communicates with the center to acquire an unupdated portion of map data It has been proposed to update and update the unupdated portion of the map data between the own on-vehicle terminal and the other on-vehicle terminals by inter-vehicle communication with each other (for example, see Patent Document 1). By using such a method in an on-vehicle terminal, it is possible to update map data while reducing the load on the center.

特開２００７−６５０４２号公報JP 2007-65042 A

自車の車載端末がセンタと通信できなくなったときには、車載端末がセンタから取得する予定の情報を車車間通信により他車から取得して補填することが考えられる。自車と車車間通信が可能で且つ通信センタと通信している他車が複数のときには、車車間通信により補填する情報を多くするために、車車間通信を行なう他車をどのように選択するかが課題となる。   When the in-vehicle terminal of the own vehicle can not communicate with the center, it is conceivable that information to be acquired by the in-vehicle terminal from the center is acquired from other vehicles by inter-vehicle communication and compensated. When there are a plurality of other vehicles that can communicate with the host vehicle and the vehicle and communicate with the communication center, how to select the other vehicle that performs inter-vehicle communication in order to increase the information to be compensated by inter-vehicle communication Is the problem.

本発明の自動車は、情報を有する通信センタと通信できないときに、車車間通信により多くの情報を補填できるようにすることを主目的とする。   An object of the present invention is to provide a vehicle-to-vehicle communication that can compensate more information when communication with a communication center having information can not be performed.

本発明の自動車は、上述の主目的を達成するために以下の手段を採った。   The motor vehicle of the present invention adopts the following measures in order to achieve the above-mentioned main object.

本発明の自動車は、
情報を有する通信センタとの通信および車車間通信を行なう通信制御部を備える自動車であって、
前記通信制御部は、前記通信センタと通信できないときにおいて、自車と車車間通信が可能で且つ前記通信センタと通信している他車が複数のときには、自動運転レベルが最も高い他車を選択して車車間通信を行なう、
ことを要旨とする。 The automobile of the present invention is
A vehicle comprising a communication control unit for performing communication with a communication center having information and inter-vehicle communication,
The communication control unit selects the other vehicle with the highest level of automatic operation when communication with the vehicle is possible and there are a plurality of other vehicles communicating with the communication center when communication with the communication center is not possible. To perform inter-vehicle communication,
Make it a gist.

この本発明の自動車では、情報を有する通信センタとの通信および車車間通信を行なう通信制御部を備える。そして、通信制御部は、通信センタと通信できないときにおいて、自車と車車間通信が可能で且つ通信センタと通信している他車が複数のときには、自動運転レベルが最も高い他車を選択して車車間通信を行なう。自動運転レベルが高い他車は、高度な先読み制御を実行するために、自動運転レベルが低い他車よりも通信センタから多くの情報を取得していると考えられる。したがって、自動運転レベルが最も高い他車を選択して車車間通信を行なうことにより、多くの情報を取得（補填）することができる。ここで、「通信センタ」としては、例えば、クラウドサーバを挙げることができる。   The automobile according to the present invention is provided with a communication control unit for performing communication with a communication center having information and inter-vehicle communication. When the communication control unit can not communicate with the communication center, and when there are a plurality of other vehicles that can communicate with the vehicle and communicate with the communication center, the communication control unit selects the other vehicle with the highest level of automatic operation. Inter-vehicle communication. It is considered that other vehicles with high automatic driving level obtain more information from the communication center than other vehicles with low automatic driving level in order to execute the advanced prefetching control. Therefore, much information can be acquired (compensated) by performing inter-vehicle communication by selecting another vehicle with the highest level of automatic driving. Here, as a "communication center", a cloud server can be mentioned, for example.

こうした本発明の自動車において、前記通信制御部は、自動運転レベルが最も高い他車が２台以上のときには、自車と同一方向に行く可能性が最も高い他車を選択して車車間通信を行なうものとしてもよい。こうすれば、自車の進行方向に合う情報を取得することができる。   In the vehicle according to the present invention, when the number of other vehicles with the highest level of automatic driving is two or more, the communication control unit selects the other vehicle which is most likely to go in the same direction as the own vehicle and performs inter-vehicle communication. It may be done. In this way, it is possible to obtain information that matches the traveling direction of the vehicle.

また、本発明の自動車において、前記通信制御部は、他車の車車間通信により前記通信センタの情報を取得するときには、前記通信センタと通信するときに比して情報の種類を制限するものとしてもよい。   Further, in the vehicle according to the present invention, the communication control unit restricts the type of information as compared with the case of communicating with the communication center when acquiring information of the communication center by inter-vehicle communication of other vehicles. It is also good.

本発明の変形例の通信システムは、
情報を有する通信センタと、前記通信センタとの通信および車車間通信を行なう通信制御部を備える自車および他車と、を備える通信システムであって、
自車の前記通信制御部は、前記通信センタと通信できないときにおいて、自車と車車間通信が可能で且つ前記通信センタと通信している他車が複数のときには、自動運転レベルが最も高い他車を選択して車車間通信を行なう、
ことを要旨とする。 The communication system of the variation of the present invention is
A communication system comprising: a communication center having information; and an own vehicle and another vehicle provided with a communication control unit for performing communication with the communication center and inter-vehicle communication,
When the communication control unit of the own vehicle can not communicate with the communication center, when there are a plurality of other vehicles that can communicate with the own vehicle and communicate with the communication center, the automatic operation level is the highest, and the like Select a car and perform inter-vehicle communication,
Make it a gist.

この本発明の変形例の通信システムでは、情報を有する通信センタと、通信センタとの通信および車車間通信を行なう通信制御部を備える自車および他車と、を備える。そして、自車の通信制御部は、通信センタと通信できないときにおいて、自車と車車間通信が可能で且つ通信センタと通信している他車が複数のときには、自動運転レベルが最も高い他車を選択して車車間通信を行なう。自動運転レベルが高い他車は、高度な先読み制御を実行するために、自動運転レベルが低い他車よりも通信センタから多くの情報を取得していると考えられる。したがって、自動運転レベルが最も高い他車を選択して車車間通信を行なうことにより、多くの情報を取得（補填）することができる。ここで、「通信センタ」としては、例えば、クラウドサーバを挙げることができる。   The communication system according to the modification of the present invention includes a communication center having information, and an own vehicle and another vehicle provided with a communication control unit for performing communication with the communication center and inter-vehicle communication. Then, when the communication control unit of the own vehicle can not communicate with the communication center, when there are a plurality of other vehicles which can communicate with the own vehicle and communicate with the communication center, the other vehicles having the highest level of automatic operation Select to perform inter-vehicle communication. It is considered that other vehicles with high automatic driving level obtain more information from the communication center than other vehicles with low automatic driving level in order to execute the advanced prefetching control. Therefore, much information can be acquired (compensated) by performing inter-vehicle communication by selecting another vehicle with the highest level of automatic driving. Here, as a "communication center", a cloud server can be mentioned, for example.

本発明の一実施例としての自車２０を有する通信システム１０の構成の概略を示す構成図である。It is a block diagram which shows the outline of a structure of the communication system 10 which has the own vehicle 20 as one Example of this invention. 自車２０の通信制御部２１により実行される処理ルーチンの一例を示す説明図である。FIG. 6 is an explanatory view showing an example of a processing routine executed by the communication control unit 21 of the host vehicle 20. クラウドサーバＣＳとの通信を自車２０内で代替可能な場合の例を示す説明図である。It is explanatory drawing which shows the example in the case where communication with cloud server CS can be substituted in the own vehicle 20. FIG. クラウドサーバＣＳとの通信を自車２０内で代替可能な場合の例を示す説明図である。It is explanatory drawing which shows the example in the case where communication with cloud server CS can be substituted in the own vehicle 20. FIG. 他車４０（接続他車）と車車間通信を行なう様子を示す説明図である。It is explanatory drawing which shows a mode that inter-vehicle communication is carried out with the other vehicle 40 (connection other vehicle). 他車４０（接続他車）と車車間通信を行なう様子を示す説明図である。It is explanatory drawing which shows a mode that inter-vehicle communication is carried out with the other vehicle 40 (connection other vehicle).

次に、本発明を実施するための形態を実施例を用いて説明する。   Next, modes for carrying out the present invention will be described using examples.

図１は、本発明の一実施例としての自車（自動車）２０を有する通信システム１０の構成の概略を示す構成図である。通信システム１０は、図示するように、自車２０に加えて、通信センタとしてのクラウドサーバＣＳと、他車（自動車）４０と、を備える。なお、図１では、他車４０を１台だけ図示したが、他車４０の数は、１台に限定されるものではない。   FIG. 1 is a block diagram showing an outline of the configuration of a communication system 10 having an own vehicle (car) 20 as one embodiment of the present invention. The communication system 10 includes a cloud server CS as a communication center and other vehicles (cars) 40 in addition to the vehicle 20 as illustrated. Although only one other vehicle 40 is illustrated in FIG. 1, the number of other vehicles 40 is not limited to one.

自車２０および他車４０は、それぞれ、Ｗｉｆｉ通信部２２，４２を有する通信制御部２１，４１を備える。Ｗｉｆｉ通信部２２，４２は、例えば、ＩＥＥＥ（The Institute of Electrical and Electronics Engineers）８０２．１１に準拠した無線通信用のモジュールとして構成されており、クラウドサーバＣＳとの通信や車車間通信などに用いられる。通信制御部２１，４１は、Ｗｉｆｉ通信部２２，４２に加えて、図示しないが、ＣＰＵやＲＯＭ、ＲＡＭ、入出力ポート、通信ポートを有するマイクロプロセッサを備える。   The own vehicle 20 and the other vehicle 40 each include a communication control unit 21 or 41 having a Wifi communication unit 22 or 42. The Wifi communication units 22 and 42 are configured, for example, as modules for wireless communication conforming to IEEE (The Institute of Electrical and Electronics Engineers) 802.11, and are used for communication with the cloud server CS, inter-vehicle communication, etc. Be The communication control units 21 and 41 include, in addition to the Wifi communication units 22 and 42, although not shown, a microprocessor having a CPU, a ROM, a RAM, an input / output port, and a communication port.

クラウドサーバＣＳには、地図情報や、各車両（自車２０や他車４０）の走行履歴情報、メンテナンス情報などが記憶されている。ここで、地図情報には、サービス情報（例えば、観光情報や駐車場、コンビニエンスストア、ガソリンスタンド、充電スタンドなど）や、予め定められた各走行区間（例えば、信号機間や交差点間など）の道路情報などが含まれ、道路情報には、距離情報や、幅員情報、車線数情報、地域情報（市街地や郊外）、種別情報（一般道路や高速道路、有料道路）、勾配情報、法定速度、信号機の数などが含まれる。走行履歴情報には、走行ルートや走行日時、駐車位置，駐車日時などの履歴が含まれる。   The cloud server CS stores map information, travel history information of each vehicle (the vehicle 20 and the other vehicle 40), maintenance information, and the like. Here, the map information includes service information (for example, tourist information, parking lot, convenience store, gas station, charging station, etc.) and a road of each predetermined traveling section (for example, between traffic lights, between intersections, etc.) Information includes information, etc. Road information includes distance information, width information, lane number information, regional information (city and suburbs), type information (general roads, expressways, toll roads), slope information, legal speed, traffic lights The number of etc. is included. The traveling history information includes a history of traveling route, traveling date and time, parking position, parking date and the like.

次に、実施例の自車２０の動作、特に、クラウドサーバＣＳとの通信に不具合が発生したときの動作について説明する。図２は、自車２０の通信制御部２１により実行される処理ルーチンの一例を示す説明図である。このルーチンは、繰り返し実行される。   Next, the operation of the vehicle 20 of the embodiment, in particular, the operation when a failure occurs in the communication with the cloud server CS will be described. FIG. 2 is an explanatory view showing an example of a processing routine executed by the communication control unit 21 of the own vehicle 20. As shown in FIG. This routine is repeatedly executed.

図２の処理ルーチンが実行されると、自車２０の通信制御部２１は、クラウドサーバＣＳとの通信に不具合が発生しているか否かを判定する（ステップＳ１００、Ｓ１１０）。ここで、クラウドサーバＣＳとの通信に不具合が発生するときとしては、自車２０のＷｉｆｉ通信部２２に異常が発生したときや、Ｗｉｆｉ通信部２２とクラウドサーバＣＳとの間に電波障害が発生したときなどを挙げることができる。クラウドサーバＣＳとの通信に不具合が発生していないと判定したときには、本ルーチンを終了する。   When the processing routine of FIG. 2 is executed, the communication control unit 21 of the own vehicle 20 determines whether or not a failure occurs in communication with the cloud server CS (steps S100 and S110). Here, when a problem occurs in communication with the cloud server CS, an abnormality occurs in the Wifi communication unit 22 of the vehicle 20 or a radio wave failure occurs between the Wifi communication unit 22 and the cloud server CS. When you If it is determined that no trouble has occurred in communication with the cloud server CS, this routine ends.

ステップＳ１００，Ｓ１１０でクラウドサーバＣＳとの通信に不具合が発生していると判定したときには、クラウドサーバＣＳとの通信を自車２０内で代替可能な否かを判定する（ステップＳ１２０，Ｓ１３０）。そして、クラウドサーバＣＳとの通信を自車２０内で代替可能であると判定したときには、クラウドサーバＣＳとの通信を自車２０内で代替して（ステップＳ１４０）、本ルーチンを終了する。図３および図４は、クラウドサーバＣＳとの通信を自車２０内で代替可能な場合の例を示す説明図である。   If it is determined in steps S100 and S110 that a failure occurs in communication with the cloud server CS, it is determined whether or not communication with the cloud server CS can be substituted in the host vehicle 20 (steps S120 and S130). When it is determined that communication with the cloud server CS can be substituted in the host vehicle 20, communication with the cloud server CS is substituted in the host vehicle 20 (step S140), and this routine is ended. FIGS. 3 and 4 are explanatory diagrams showing an example of the case where communication with the cloud server CS can be substituted in the vehicle 20.

図３は、自車２０の通信制御部２１がＷｉｆｉ通信部２２に加えて別のＷｉｆｉ通信部２３を備える場合である。Ｗｉｆｉ通信部２３は、Ｗｉｆｉ通信部２２と同様の無線通信用のモジュールとして構成されており、例えば、外部電源（送電装置）と車載の受電装置との間で非接触で送受電して車載のバッテリを充電する非接触充電が可能な自動車における外部電源との通信などに用いられる。図３の場合、Ｗｉｆｉ通信部２３をクラウドサーボＣＳとの通信に用いることにより、クラウドサーバＣＳとの通信を行なうことができ、クラウドサーバＣＳから情報を取得することができる。   FIG. 3 shows the case where the communication control unit 21 of the vehicle 20 includes another Wifi communication unit 23 in addition to the Wifi communication unit 22. The Wifi communication unit 23 is configured as a module for wireless communication similar to the Wifi communication unit 22. For example, the wireless communication unit 23 transmits and receives power without contact between an external power supply (power transmission device) and a vehicle-mounted power reception device. It is used for communication with an external power supply in a non-contact chargeable vehicle that charges a battery. In the case of FIG. 3, by using the Wifi communication unit 23 for communication with the cloud servo CS, communication with the cloud server CS can be performed, and information can be acquired from the cloud server CS.

図４は、自車２０の通信制御部２１がＷｉｆｉ通信部２２に加えてＢｌｕｅｔｏｏｔｈ（登録商標）通信部２４を備え、且つ、Ｗｉｆｉ通信部３２やＢｌｕｅｔｏｏｔｈ（登録商標）通信部３４を有する通信制御部３１を備える携帯端末（スマートフォンやタブレットなど）３０が自車２０内に持ち込まれた場合である。Ｂｌｕｅｔｏｏｔｈ（登録商標）通信部２４は、ＩＥＥＥ８０２．１５．１に準拠した無線通信用のモジュールとして構成されており、近距離の無線通信に用いられる。Ｗｉｆｉ通信部３２は、自車２０のＷｉｆｉ通信部２２と同様の無線通信用のモジュールとして構成されており、クラウドサーバＣＳとの通信などに用いられる。Ｂｌｕｅｔｏｏｔｈ（登録商標）通信部３４は、自車２０のＢｌｕｅｔｏｏｔｈ（登録商標）通信部２４と同様の無線通信用のモジュールとして構成されており、近距離の無線通信に用いられる。通信制御部３１は、Ｗｉｆｉ通信部３２やＢｌｕｅｔｏｏｔｈ（登録商標）通信部３４に加えて、図示しないが、ＣＰＵやＲＯＭ、ＲＡＭ、入出力ポート、通信ポートを有するマイクロプロセッサを備える。図４の場合、Ｂｌｕｅｔｏｏｔｈ（登録商標）通信部２４とクラウドサーバＣＳとの間で携帯端末３０のＢｌｕｅｔｏｏｔｈ（登録商標）通信部３４およびＷｉｆｉ通信部３２を介して通信を行なうことができ、クラウドサーバＣＳから情報を取得することができる。なお、Ｂｌｕｅｔｏｏｔｈ（登録商標）はＷｉｆｉに比して通信速度が低いことから、取得する情報を制限する（例えば、地図情報だけに制限する）ものとしてもよい。   In FIG. 4, the communication control unit 21 of the vehicle 20 includes a Bluetooth (registered trademark) communication unit 24 in addition to the Wifi communication unit 22, and a communication control including the Wifi communication unit 32 and the Bluetooth (registered trademark) communication unit 34. This is a case where a portable terminal (such as a smartphone or a tablet) 30 including the unit 31 is brought into the vehicle 20. The Bluetooth (registered trademark) communication unit 24 is configured as a module for wireless communication conforming to IEEE 802.15.1, and is used for short distance wireless communication. The Wifi communication unit 32 is configured as a wireless communication module similar to the Wifi communication unit 22 of the vehicle 20, and is used for communication with the cloud server CS. The Bluetooth (registered trademark) communication unit 34 is configured as a module for wireless communication similar to the Bluetooth (registered trademark) communication unit 24 of the host vehicle 20, and is used for short distance wireless communication. The communication control unit 31 includes, in addition to the Wifi communication unit 32 and the Bluetooth (registered trademark) communication unit 34, a microprocessor (not shown) having a CPU, a ROM, a RAM, an input / output port, and a communication port. In the case of FIG. 4, communication can be performed between the Bluetooth (registered trademark) communication unit 24 and the cloud server CS via the Bluetooth (registered trademark) communication unit 34 and the Wifi communication unit 32 of the mobile terminal 30. Information can be obtained from CS. Since Bluetooth (registered trademark) has a lower communication speed than Wifi, the information to be acquired may be limited (for example, limited to only map information).

ステップＳ１２０，Ｓ１３０でクラウドサーバＣＳとの通信を自車２０内で代替可能でないと判定したときには、車車間通信を行なうための接続他車を選択し（ステップＳ１５０）、選択した接続他車と車車間通信を行なって（ステップＳ１６０）、本ルーチンを終了する。   When it is determined in steps S120 and S130 that communication with the cloud server CS can not be substituted in the host vehicle 20, another connected vehicle for performing inter-vehicle communication is selected (step S150), and the selected connected other vehicle and vehicle are selected. Inter-vehicle communication is performed (step S160), and this routine ends.

ステップＳ１５０の処理では、自車２０と車車間通信が可能で且つクラウドサーバＣＳと通信している他車４０が１台のときには、その他車を接続他車として選択し、自車２０と車車間通信が可能で且つクラウドサーバＣＳと通信している他車４０が複数のときには、自動運転レベルが最も高い他車４０を接続他車として選択する。また、ステップＳ１６０の処理では、接続他車との車車間通信により、他車４０がクラウドサーバＣＳから取得した情報のうち自車２０の所望の情報を取得する。自動運転レベルが高い他車４０（特に、レベル２〜５の他車４０）は、高度な先読み制御を実行するために、自動運転レベルが低い他車４０よりもクラウドサーバＣＳから多くの情報を取得していると考えられる。したがって、自動運転レベルが最も高い他車４０を選択して車車間通信を行なうことにより、他車４０から多くの情報を取得（補填）することができる。なお、他車４０と車車間通信を行なう場合、クラウドサーバＣＳとの直接の通信（他車４０を介さない通信）により情報を取得するときに比して、取得する情報（自車２０の所望の情報）の種類を制限するものとしてもよい。例えば、クラウドサーバＣＳとの通信により情報を取得するときには、情報の種類を制限しないのに対して、他車４０との車車間通信により情報を取得するときには、地図情報だけに制限するものとしてもよい。これは、他車４０との車車間通信を行なう際のセキュリティ（情報の保護）を考慮したものである。図５および図６は、他車４０（接続他車）と車車間通信を行なう様子を示す説明図である。   In the process of step S150, when there is one other vehicle 40 capable of inter-vehicle communication with the vehicle 20 and communicating with the cloud server CS, another vehicle is selected as the connected other vehicle, and the vehicle 20 and the inter-vehicle are selected. When there are a plurality of other vehicles 40 that can communicate and communicate with the cloud server CS, the other vehicle 40 with the highest level of automatic operation is selected as the connected other vehicle. Further, in the process of step S160, the desired information of the vehicle 20 is acquired among the information acquired by the other vehicle 40 from the cloud server CS by inter-vehicle communication with the connected other vehicle. Other cars 40 with high automatic driving levels (especially, other cars 40 with levels 2 to 5) receive more information from the cloud server CS than other vehicles 40 with low automatic driving levels in order to execute advanced prefetch control. It is considered to have acquired. Therefore, by selecting the other vehicle 40 having the highest level of automatic driving and performing inter-vehicle communication, a large amount of information can be acquired (compensated) from the other vehicle 40. Note that when performing inter-vehicle communication with another vehicle 40, information to be acquired (desired by the vehicle 20) is obtained as compared to acquiring information by direct communication with the cloud server CS (communication not via the other vehicle 40). The type of information) may be limited. For example, when acquiring information through communication with the cloud server CS, the type of information is not limited, but when acquiring information through inter-vehicle communication with another vehicle 40, it is limited to map information only. Good. This is in consideration of security (information protection) when performing inter-vehicle communication with another vehicle 40. FIG. 5 and FIG. 6 are explanatory diagrams showing a state of performing inter-vehicle communication with another vehicle 40 (connected another vehicle).

図５は、Ｗｉｆｉ通信部２２が正常である場合（例えば、Ｗｉｆｉ通信部２２とクラウドサーバＣＳとの間に電波障害が発生した場合）である。この場合、自車２０のＷｉｆｉ通信部２２と他車４０のＷｉｆｉ通信部４２とにより車車間通信を行なうことにより、自車２０は、他車４０がクラウドサーバＣＳから取得した情報のうち自車２０の所望の情報を取得することができる。   FIG. 5 shows the case where the Wifi communication unit 22 is normal (for example, when a radio wave failure occurs between the Wifi communication unit 22 and the cloud server CS). In this case, by performing inter-vehicle communication with the Wifi communication unit 22 of the own vehicle 20 and the Wifi communication unit 42 of the other vehicle 40, the own vehicle 20 is an own vehicle among the information acquired by the other vehicle 40 from the cloud server CS. Twenty desired information can be obtained.

図６は、図４と同様に自車２０の通信制御部２１がＢｌｕｅｔｏｏｔｈ（登録商標）通信部２４を備え、且つ、Ｗｉｆｉ通信部２２に異常が発生した場合である。この場合、自車２０のＢｌｕｅｔｏｏｔｈ（登録商標）通信部２４と他車４０のＢｌｕｅｔｏｏｔｈ（登録商標）通信部４４とにより車車間通信を行なうことにより、自車２０は、他車４０がクラウドサーバＣＳから取得した情報のうち自車２０の所望の情報を取得することができる。なお、Ｂｌｕｅｔｏｏｔｈ（登録商標）による無線通信距離は、比較的短いことから、信号待ちの停車中や追従走行中などに通信を行なうことが考えられる。また、Ｂｌｕｅｔｏｏｔｈ（登録商標）はＷｉｆｉに比して通信速度が低いことから、取得する情報を更に制限する（例えば、地図情報のうちの道路情報だけにするなど）ものとしてもよい。   FIG. 6 shows the case where the communication control unit 21 of the vehicle 20 includes the Bluetooth (registered trademark) communication unit 24 as in FIG. 4 and an abnormality occurs in the Wifi communication unit 22. In this case, by performing inter-vehicle communication by the Bluetooth (registered trademark) communication unit 24 of the own vehicle 20 and the Bluetooth (registered trademark) communication unit 44 of the other vehicle 40, the other vehicle 40 has the cloud server CS. The desired information of the vehicle 20 can be acquired among the information acquired from. In addition, since the wireless communication distance by Bluetooth (registered trademark) is relatively short, it can be considered that communication is performed while the vehicle is waiting for a signal or while following. In addition, since Bluetooth (registered trademark) has a lower communication speed than Wifi, the information to be acquired may be further restricted (for example, only road information in map information).

以上説明した実施例の自車（自動車）２０では、クラウドサーバＣＳと通信できなく且つクラウドサーバＣＳとの通信を自車２０内で代替可能でないときにおいて、自車２０と車車間通信が可能で且つクラウドサーバＣＳと通信している他車が複数のときには、自動運転レベルが最も高い他車４０を接続他車として選択し、その接続他車と車車間通信を行なう。自動運転レベルが高い他車４０は、高度な先読み制御を実行するために、自動運転レベルが低い他車４０よりもクラウドサーバＣＳから多くの情報を取得していると考えられる。したがって、自動運転レベルが最も高い他車を選択して車車間通信を行なうことにより、多くの情報を取得（補填）することができる。   In the vehicle (vehicle) 20 of the embodiment described above, communication between the vehicle 20 and the vehicle 20 is possible when communication with the cloud server CS is not possible and communication with the cloud server CS can not be substituted in the vehicle 20. In addition, when there are a plurality of other vehicles communicating with the cloud server CS, the other vehicle 40 having the highest automatic driving level is selected as the connected other vehicle, and the connected other vehicle communicates with the other vehicle. It is considered that the other vehicle 40 having a high level of automatic driving obtains more information from the cloud server CS than the other vehicle 40 having a low level of automatic driving in order to execute the advanced prefetching control. Therefore, much information can be acquired (compensated) by performing inter-vehicle communication by selecting another vehicle with the highest level of automatic driving.

実施例の自車（自動車）２０では、クラウドサーバＣＳと通信できなく且つクラウドサーバＣＳとの通信を自車２０内で代替可能でないときにおいて、自車２０と車車間通信が可能で且つクラウドサーバＣＳと通信している他車が複数のときには、自動運転レベルが最も高い他車を接続他車として選択し、その接続他車と車車間通信を行なうものとした。しかし、自動運転レベルが最も高い他車が２台以上のときには、自車２０と同一方向に行く可能性が最も高い他車を接続他車として選択し、その接続他車と車車間通信を行なうものとしてもよい。こうすれば、自車の進行方向に合う情報を取得することができる。なお、「自車２０と同一方向に行く可能性が高いか否か」は、目的地などに基づいて判定することができる。目的地は、ユーザにより設定されたものや、出発日時などに基づいてクラウドサーバＣＳにより予測されたものなどが用いられる。   In the vehicle (vehicle) 20 of the embodiment, when communication with the cloud server CS is not possible and communication with the cloud server CS can not be substituted in the vehicle 20, communication between the vehicle 20 and the vehicle is possible and the cloud server When there are a plurality of other vehicles communicating with the CS, another vehicle with the highest level of automatic driving is selected as the connected other vehicle, and the connected other vehicle and the inter-vehicle communication are performed. However, when there are two or more other vehicles with the highest level of automatic driving, the other vehicle with the highest possibility of going in the same direction as the own vehicle 20 is selected as the connected other vehicle, and the connected other vehicle communicates with the other vehicle It is good also as things. In this way, it is possible to obtain information that matches the traveling direction of the vehicle. Note that “whether or not the possibility of going in the same direction as the host vehicle 20 is high” can be determined based on the destination and the like. As the destination, one set by the user or one predicted by the cloud server CS based on the departure date and the like are used.

実施例の自車（自動車）２０では、クラウドサーバＣＳと通信できなく且つクラウドサーバＣＳとの通信を自車２０内で代替可能でないときには、他車４０との車車間通信により、他車４０がクラウドサーバＣＳから取得した情報のうち自車２０の所望の情報を取得するものとした。しかし、これに加えて、他車４０を介してクラウドサーバＣＳに自車２０の所望の情報をリクエストし、クラウドサーバＣＳから他車４０を介して自車２０の所望の情報を取得するものとしてもよい。これは、他車４０が所望の情報を所有していないときに有効である。なお、この場合でも、自動運転レベルが最も高い他車４０を接続他車としていることにより、自車２０のために（他車４０で必要なにも拘わらずに）他車４０とクラウドサーバＣＳとの間でやりとりしてもらう情報量を少なくすることができる。   In the vehicle (vehicle) 20 according to the embodiment, when communication with the cloud server CS can not be performed and communication with the cloud server CS can not be substituted in the vehicle 20, the other vehicle 40 is communicated by the inter-vehicle communication with the other vehicle 40. Among the information acquired from the cloud server CS, desired information of the vehicle 20 is acquired. However, in addition to this, the cloud server CS requests desired information of the vehicle 20 to the cloud server CS via the other vehicle 40, and the desired information of the vehicle 20 is acquired from the cloud server CS via the other vehicle 40 It is also good. This is effective when the other vehicle 40 does not possess the desired information. Even in this case, by using the other vehicle 40 having the highest level of automatic driving as the connected other vehicle, the other vehicle 40 and the cloud server CS can be used for the vehicle 20 (in spite of the necessity of the other vehicle 40) It is possible to reduce the amount of information exchanged between

実施例の自車（自動車）２０では、クラウドサーバＣＳと通信できないときにおいて、クラウドサーバＣＳとの通信を自車２０内で代替可能なときには、自車２０内で代替し、クラウドサーバＣＳとの通信を自車２０内で代替可能でないときには、他車４０と車車間通信を行なうものとした。しかし、クラウドサーバＣＳと通信できないときには、クラウドサーバＣＳとの通信を自車２０内で代替可能であるか否かに拘わらずに、他車４０と車車間通信を行なうものとしてもよい。   In the vehicle (vehicle) 20 according to the embodiment, when communication with the cloud server CS can be substituted in the vehicle 20 when communication with the cloud server CS can not be performed, the communication with the cloud server CS is substituted in the vehicle 20. When communication can not be substituted in the host vehicle 20, inter-vehicle communication with other vehicles 40 is performed. However, when communication with the cloud server CS can not be performed, inter-vehicle communication with another vehicle 40 may be performed regardless of whether communication with the cloud server CS can be substituted in the own vehicle 20 or not.

実施例の主要な要素と課題を解決するための手段の欄に記載した発明の主要な要素との対応関係について説明する。実施例では、通信制御部２１が「通信制御部」に相当する。   The correspondence between the main elements of the embodiment and the main elements of the invention described in the section of "Means for Solving the Problems" will be described. In the embodiment, the communication control unit 21 corresponds to a "communication control unit".

なお、実施例の主要な要素と課題を解決するための手段の欄に記載した発明の主要な要素との対応関係は、実施例が課題を解決するための手段の欄に記載した発明を実施するための形態を具体的に説明するための一例であることから、課題を解決するための手段の欄に記載した発明の要素を限定するものではない。即ち、課題を解決するための手段の欄に記載した発明についての解釈はその欄の記載に基づいて行なわれるべきものであり、実施例は課題を解決するための手段の欄に記載した発明の具体的な一例に過ぎないものである。   In addition, the correspondence of the main elements of the embodiment and the main elements of the invention described in the section of the means for solving the problem implements the invention described in the column of the means for solving the problem in the example. The present invention is not limited to the elements of the invention described in the section of “Means for Solving the Problems”, as it is an example for specifically explaining the mode for carrying out the invention. That is, the interpretation of the invention described in the section of the means for solving the problem should be made based on the description of the section, and the embodiment is an embodiment of the invention described in the section of the means for solving the problem. It is only a specific example.

以上、本発明を実施するための形態について実施例を用いて説明したが、本発明はこうした実施例に何等限定されるものではなく、本発明の要旨を逸脱しない範囲内において、種々なる形態で実施し得ることは勿論である。   As mentioned above, although the form for implementing this invention was demonstrated using the Example, this invention is not limited at all by these Examples, In the range which does not deviate from the summary of this invention, it becomes various forms Of course it can be implemented.

本発明は、自動車の製造産業などに利用可能である。   The present invention is applicable to the automobile manufacturing industry and the like.

１０ 通信システム、２０ 自車、２１，３１，４１ 通信制御部、２２，２３，３２，４２ Ｗｉｆｉ通信部、２３ Ｗｉｆｉ通信部、２４，３４，４４ Ｂｌｕｅｔｏｏｔｈ（登録商標）通信部、３０ 携帯端末。   10 communication system, 20 own vehicle, 21, 31, 41 communication control unit, 22, 23, 32, 32, 42 Wifi communication unit, 23 Wifi communication unit, 24, 34, 44 Bluetooth (registered trademark) communication unit, 30 mobile terminal.

Claims (1)

情報を有する通信センタとの通信および車車間通信を行なう通信制御部を備える自動車であって、
前記通信制御部は、前記通信センタと通信できないときにおいて、自車と車車間通信が可能で且つ前記通信センタと通信している他車が複数のときには、自動運転レベルが最も高い他車を選択して車車間通信を行なう、
自動車。 A vehicle comprising a communication control unit for performing communication with a communication center having information and inter-vehicle communication,
The communication control unit selects the other vehicle with the highest level of automatic operation when communication with the vehicle is possible and there are a plurality of other vehicles communicating with the communication center when communication with the communication center is not possible. To perform inter-vehicle communication,
Automobile.
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