JP2019156084A - Vehicle control device and vehicle control method - Google Patents

Vehicle control device and vehicle control method Download PDF

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JP2019156084A
JP2019156084A JP2018043772A JP2018043772A JP2019156084A JP 2019156084 A JP2019156084 A JP 2019156084A JP 2018043772 A JP2018043772 A JP 2018043772A JP 2018043772 A JP2018043772 A JP 2018043772A JP 2019156084 A JP2019156084 A JP 2019156084A
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vehicle
search
state
portable device
signal
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洋輔 富田
Yosuke Tomita
洋輔 富田
康之 高田
Yasuyuki Takada
康之 高田
弘樹 坂本
Hiroki Sakamoto
弘樹 坂本
雄生 徳山
Takeo Tokuyama
雄生 徳山
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Nidec Mobility Corp
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Omron Automotive Electronics Co Ltd
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Abstract

To provide a vehicle control device which prevents an erroneous operation from occurring, even in short-range radio communication including long communicable ranges, and in which communication is performed at long communication ranges in specific cases.SOLUTION: A vehicle control device 100 includes: a portable apparatus search part 11 which transmits a search signal by short-range radio communication, and searches for a portable apparatus F in a first search range; a vehicle state detector 20 which detects a state of a vehicle; and a vehicle state notification part 30 which notifies the portable apparatus of the state detected by the vehicle state detector. When an abnormal state is detected by the vehicle state detector, the portable apparatus search part starts searching for the portable apparatus in a second search range that is wider than the first search range, and when short-range radio communication is established with the portable apparatus, the vehicle state notification part notifies the portable apparatus of the state of the vehicle.SELECTED DRAWING: Figure 1

Description

本発明は、車両制御装置および車両制御方法に関し、特に携帯機と車両の間で無線通信を行う車両制御装置および車両制御方法に関する。   The present invention relates to a vehicle control device and a vehicle control method, and more particularly to a vehicle control device and a vehicle control method for performing wireless communication between a portable device and a vehicle.

従来から、車両と携帯機の間で無線通信を行い、車両から携帯機へ車両の状態を通知する技術が提案されている。例えば、特許文献1は、車両に搭載されている機器の盗難が発生した場合にも早期の通報が可能な監視システムを開示する。この監視システムでは、車両に搭載されたボディECUは、自身に接続されている各車載機器からの情報に基づいて、自身が搭載されている車両の状態が正常であるか否かを判断し、その判断結果を示す情報を通報装置へ送信する。通報装置は、ボディECUから受信した情報に基づいて、車両の状態が正常であるか否かを判断し、正常でないと判断した場合、この車両に対して予め登録されている装置へ通報する。   Conventionally, a technique for performing wireless communication between a vehicle and a portable device and notifying the state of the vehicle from the vehicle to the portable device has been proposed. For example, Patent Document 1 discloses a monitoring system capable of early notification even when a device mounted on a vehicle is stolen. In this monitoring system, the body ECU mounted on the vehicle determines whether the state of the vehicle on which the body ECU is mounted is normal based on information from each in-vehicle device connected to the vehicle, Information indicating the determination result is transmitted to the reporting device. Based on the information received from the body ECU, the reporting device determines whether or not the state of the vehicle is normal, and if it is determined that the vehicle is not normal, notifies the device registered in advance for this vehicle.

また、特許文献2は、車両の事故の発生時に、車両から緊急通報センタ等の外部に緊急通報を行うことができない事態を回避することを可能とする緊急通報システムを提供する。この緊急通報システムは、車両の事故の発生時に、エアバッグシステムの作動によりディスプレイオーディオ装置が、携帯端末の緊急通報アプリケーションの起動状態を監視し、緊急通報アプリケーションの起動状態に応じて異なる緊急通報処理を行う。   Patent Document 2 provides an emergency call system that makes it possible to avoid a situation in which an emergency call cannot be made from the vehicle to the outside such as an emergency call center when a vehicle accident occurs. In this emergency call system, when a vehicle accident occurs, the display audio device monitors the startup status of the emergency call application on the mobile terminal by the operation of the airbag system, and different emergency call processing is performed depending on the startup status of the emergency call application I do.

特開2014−170316号公報JP 2014-170316 A 特開2013−131135号公報JP2013-131135A

車両と携帯機の間で行われる無線通信には様々な方式がある。その中でも、現在数メートルから数十メートルの距離を双方向に通信する所謂近距離無線通信の規格として、Bluetooth(登録商標)と呼ばれるIEEE802.15.1の国際標準規格に基づく無線通信方式や、Wi−Fiと呼ばれる無線LANに使用されるIEEE802.11系の規格などに準拠した無線通信方式、その他、IrDA規格に準拠した赤外線通信方式などがある。これらの規格は、無線通信機器の性能の向上と共に拡張され、無線通信できる距離も長くなる傾向にあり、たとえば、Bluetooth(登録商標)の次世代の規格(Bluetooth5.0)では、通信範囲が今までの数倍になるとか、最大で1キロメートルを超えるなどと言われている。   There are various methods for wireless communication performed between a vehicle and a portable device. Among them, as a so-called short-range wireless communication standard for bidirectional communication at a distance of several meters to several tens of meters, a wireless communication system based on the IEEE 802.15.1 international standard called Bluetooth (registered trademark), There are a wireless communication system compliant with the IEEE802.11 standard used for a wireless LAN called Wi-Fi, and an infrared communication system compliant with the IrDA standard. These standards are being expanded with the improvement of the performance of wireless communication devices, and the distance over which wireless communication can be performed tends to increase. For example, in the next generation standard of Bluetooth (registered trademark) (Bluetooth 5.0), the communication range is now It is said that it will be several times higher than that, or exceed a maximum of one kilometer.

そのため、従来の想定では意図しない場所や状況で無線通信が接続され、誤作動を引き起こす恐れが生じる。一方、たとえば、車両に何らかの異常がある場合には、通信範囲を広げ、異常の内容をいち早く運転者に伝達することは望ましいし、運転者から車両の方に遠距離から通信したい場合もある。   For this reason, wireless communication is connected in an unintended place or situation under conventional assumptions, which may cause malfunction. On the other hand, for example, when there is some abnormality in the vehicle, it is desirable to widen the communication range and transmit the content of the abnormality to the driver as soon as possible, and sometimes it is desired to communicate from the driver to the vehicle from a long distance.

本発明は、かかる事情を鑑みて考案されたものであり、長い通信可能距離を有する近距離無線通信であっても、誤作動を防止すると共に、特定の場合には長い通信距離で通信を行う車両制御装置および車両制御方法を提供するものである。   The present invention has been devised in view of such circumstances, and prevents malfunctions even in short-range wireless communication having a long communicable distance and performs communication over a long communication distance in specific cases. A vehicle control device and a vehicle control method are provided.

上記課題を解決するために、携帯機と近距離無線通信を行う車両制御装置であって、近距離無線通信による探索信号を送信し、携帯機を第1の探索範囲で探索する携帯機探索部と、車両の状態を検出する車両状態検出部と、車両状態検出部が検出した状態を携帯機に通知する車両状態通知部と、を備え、携帯機探索部は、車両状態検出部が異常な状態を検出すると、第1の探索範囲よりも広い第2の探索範囲で携帯機の探索を開始し、携帯機との近距離無線通信が確立した場合、車両状態通知部は、携帯機に前記車両の状態を通知する車両制御装置が提供される。
これによれば、異常状態を検出するとより広い範囲で探索を開始し、携帯機との通信が確立した場合に携帯機に車両の状態を通知することで、使用者がいち早く異常に気付きやすくなる車両制御装置を提供することができる。また、通常の場合は狭い範囲で探索を行うので携帯機と繋がりにくくなり、誤作動を防止する車両制御装置を提供することができる。
In order to solve the above problem, a vehicle control device that performs short-range wireless communication with a portable device, transmits a search signal by short-range wireless communication, and searches for the portable device within a first search range. And a vehicle state detection unit that detects the state of the vehicle, and a vehicle state notification unit that notifies the portable device of the state detected by the vehicle state detection unit, and the portable device search unit has an abnormal vehicle state detection unit. When the state is detected, the search for the portable device is started in the second search range wider than the first search range, and when the short-range wireless communication with the portable device is established, the vehicle state notification unit A vehicle control device for notifying the state of a vehicle is provided.
According to this, when an abnormal state is detected, a search is started in a wider range, and when communication with the portable device is established, the user is easily aware of the abnormality quickly by notifying the portable device of the vehicle state. A vehicle control device can be provided. In addition, since a search is normally performed in a narrow range, it is difficult to connect to a portable device, and a vehicle control device that prevents malfunction can be provided.

さらに、車両状態検出部は、予め車両の状態を重要度と緊急度に分類し、各分類に応じた探索信号の信号強度を記憶する状態信号記憶部を備え、携帯機探索部は、状態信号記憶部の信号強度に基づいて、検出した状態の重要度と緊急度に応じて信号強度を変更して探索することを特徴としてもよい。
これによれば、予め車両の状態を重要度と緊急度に分類し、各分類に応じた探索信号の信号強度を定めて置き、その信号強度に基づいて、検出した状態の重要度と緊急度に応じて信号強度を変更して探索することで、長い通信可能距離を有する近距離無線通信であっても、状況に応じて適切な通信距離で通信を行うことができる。
Further, the vehicle state detection unit includes a state signal storage unit that classifies the vehicle state into importance and urgency in advance and stores the signal strength of the search signal corresponding to each classification. Based on the signal strength of the storage unit, the search may be performed by changing the signal strength according to the importance level and the urgency level of the detected state.
According to this, the state of the vehicle is classified into importance and urgency in advance, the signal strength of the search signal corresponding to each classification is determined, and the importance and urgency of the detected state are determined based on the signal strength. By changing the signal strength according to the search, even near field communication having a long communicable distance, communication can be performed at an appropriate communication distance depending on the situation.

さらに、状態信号記憶部は、各分類に応じた探索信号の信号間隔をさらに記憶し、携帯機探索部は、状態信号記憶部の信号間隔に基づいて、検出した状態の重要度と緊急度に応じて信号間隔を変更して探索することを特徴としてもよい。
これによれば、各分類に応じた探索信号の信号間隔を定め、その信号間隔に基づいて、検出した状態の重要度と緊急度に応じて信号間隔を変更して探索することで、通信の必要性が高い場合には早急に通知を行うことができると共に、必要性が低い場合には消費電力を抑制することができる。
Further, the state signal storage unit further stores the signal interval of the search signal corresponding to each classification, and the portable device search unit determines the importance and urgency of the detected state based on the signal interval of the state signal storage unit. Accordingly, the search may be performed by changing the signal interval accordingly.
According to this, the signal interval of the search signal corresponding to each classification is determined, and based on the signal interval, the search is performed by changing the signal interval according to the importance level and the urgency level of the detected state. When the necessity is high, notification can be made immediately, and when the necessity is low, power consumption can be suppressed.

さらに、携帯機探索部が第2の探索範囲で携帯機の探索を開始し、車両状態通知部から携帯機に車両の状態を通知した後、第1の探索範囲での探索を再開することを特徴としてもよい。
これによれば、車両の異常状態を通知した後は通常の探索範囲での探索を再開することで、誤作動を防止することができると共に、消費電力を抑制することができる。
Furthermore, after the portable device search unit starts searching for the portable device in the second search range and notifies the portable device of the vehicle state from the vehicle state notification unit, the search in the first search range is resumed. It may be a feature.
According to this, after notifying the abnormal state of the vehicle, restarting the search in the normal search range can prevent malfunction and suppress power consumption.

上記課題を解決するために、携帯機と車両間の近距離無線通信を制御する車両制御方法であって、近距離無線通信により、携帯機を第1の探索範囲で探索する探索信号を送信し、車両の状態を検出し、異常な状態を検出した場合、第1の探索範囲よりも広い第2の探索範囲で携帯機の探索を開始し、携帯機との近距離無線通信が確立した場合、携帯機に車両の状態を通知する車両制御方法が提供される。
これによれば、異常状態を検出するとより通常より広い範囲で探索を開始し、携帯機との通信が確立した場合に携帯機に車両の状態を通知することで、使用者がいち早く異常に気付きやすくなる車両制御方法を提供することができる。また、通常の場合は狭い範囲で探索を行うので携帯機と繋がりにくくなり、誤作動を防止する車両制御方法を提供することができる。
In order to solve the above problem, a vehicle control method for controlling short-range wireless communication between a portable device and a vehicle, wherein a search signal for searching for the portable device in a first search range is transmitted by short-range wireless communication. When a vehicle state is detected and an abnormal state is detected, a search for a portable device is started in a second search range wider than the first search range, and short-range wireless communication with the portable device is established A vehicle control method for notifying a portable device of the state of the vehicle is provided.
According to this, when an abnormal state is detected, a search is started in a wider range than usual, and when communication with the portable device is established, the user notices the abnormality quickly by notifying the portable device of the vehicle state. The vehicle control method which becomes easy can be provided. In addition, since a search is normally performed in a narrow range, it is difficult to connect to a portable device, and a vehicle control method that prevents malfunction can be provided.

以上説明したように、本発明によれば、車両と携帯機の近距離無線通信において、通常の場合通信可能距離は短いが、異常時などの特定の場合には通信可能距離が長くなるように制御し、携帯機との通信が確立した場合に携帯機に車両の状態を通知することで、使用者がいち早く異常に気付きやすくなる車両制御装置を提供することができる。また、通常の場合は狭い範囲で探索を行うので携帯機と繋がりにくくなり、誤作動を防止する車両制御装置を提供することができる。   As described above, according to the present invention, in short-range wireless communication between a vehicle and a portable device, the communicable distance is short in a normal case, but the communicable distance is long in a specific case such as an abnormality. It is possible to provide a vehicle control device that makes it easier for the user to notice abnormalities quickly by controlling and notifying the portable device of the state of the vehicle when communication with the portable device is established. In addition, since a search is normally performed in a narrow range, it is difficult to connect to a portable device, and a vehicle control device that prevents malfunction can be provided.

本発明に係る第一実施例の車両制御装置のブロック図。1 is a block diagram of a vehicle control device according to a first embodiment of the present invention. 本発明に係る第一実施例の車両制御装置における探索範囲を示す説明図。Explanatory drawing which shows the search range in the vehicle control apparatus of the 1st Example which concerns on this invention. 本発明に係る第一実施例の車両制御装置における制御方法の概要を示すフローチャート。The flowchart which shows the outline | summary of the control method in the vehicle control apparatus of the 1st Example which concerns on this invention. 本発明に係る第一実施例の車両制御装置における通信間隔を示す説明図。Explanatory drawing which shows the communication space | interval in the vehicle control apparatus of the 1st Example which concerns on this invention.

本発明は、長い通信可能距離を有する近距離無線通信を使用する車両制御装置において、車両の状態に応じて携帯機の探索範囲を変化させることで、通常の場合は誤作動を防止すると共に特定の場合には長い通信距離で通信を可能とするものである。以下では、図面を参照しながら、本発明に係る実施例について説明する。   The present invention relates to a vehicle control apparatus that uses short-range wireless communication having a long communicable distance, by changing the search range of the portable device according to the state of the vehicle, thereby preventing malfunction and specifying in a normal case. In this case, communication is possible over a long communication distance. Embodiments according to the present invention will be described below with reference to the drawings.

<第一実施例>
図1を参照し、本実施例における車両制御装置100を説明する。車両制御装置100は、車両Cに搭載され、携帯機Fと近距離無線通信を行う。携帯機Fは、車両Cに対応して提供され、キーとして機能する所謂FOBであってもよいし、近距離無線通信の機能を有して車両Cと通信を行うことができる所謂スマートフォンであってもよい。携帯機Fは、近距離無線通信に対応した携帯機送受信部F20と、携帯機Fの使用者に情報を表示する携帯機表示部F30と、これらを制御する携帯機制御部F10とを備える。携帯機表示部F30は、FOBであればLEDのインジケータなどであり、スマートフォンであれば液晶等のディスプレイであり、スマートフォンの方は文字や画像等により情報を表示できるので好ましい。
<First Example>
With reference to FIG. 1, the vehicle control apparatus 100 in a present Example is demonstrated. The vehicle control device 100 is mounted on the vehicle C and performs short-range wireless communication with the portable device F. The portable device F may be a so-called FOB provided corresponding to the vehicle C and functioning as a key, or a so-called smartphone that has a short-range wireless communication function and can communicate with the vehicle C. May be. The portable device F includes a portable device transmission / reception unit F20 that supports short-range wireless communication, a portable device display unit F30 that displays information to a user of the portable device F, and a portable device control unit F10 that controls them. The portable device display unit F30 is an LED indicator or the like if it is a FOB, and is a display such as a liquid crystal if it is a smartphone. The smartphone is preferable because it can display information by characters, images, or the like.

近距離無線通信とは、本明細書ではBluetooth(登録商標)を例に説明するが、数メートルから数百メートルまたは1キロメートルを多少上回る程度の距離を通信できる機能を有する通信方式であれば、特に限定されることはない。Bluetoothは、現在の規格ではIEEE802.15.1の国際標準規格に基づく無線通信方式を言うが、たとえば、近距離無線通信は、Wi−Fiと呼ばれる無線LANに使用されるIEEE802.11系の規格などに準拠した無線通信であってもよい。Bluetoothは、Basic Rate/Enhanced Data Rate(BR/EDR)とBluetooth Low Energy(LE)から構成され、いずれであってもよいが、現在の最新の仕様は、Bluetooth5.0である。Bluetooth5.0のデータレート(ボーレート)は、2Mbps、1Mbps、125kbpsであり、前二者の到達距離は100m(参考値)、125kbpsの到達距離は400m(参考値)である。データレート(ボーレート)を下げて出力を上げれば到達距離は延び、逆にデータレート(ボーレート)を上げて出力を下げると到達距離は短くなる。この到達距離は、将来さらに長くなるとことが想定される。   The short-range wireless communication is described in this specification using Bluetooth (registered trademark) as an example, but if it is a communication system having a function capable of communicating a distance of a few meters to a few hundreds of meters or a little over 1 kilometer, There is no particular limitation. Bluetooth refers to a wireless communication system based on the international standard of IEEE 802.15.1 in the current standard. For example, near field wireless communication is an IEEE 802.11 series standard used for a wireless LAN called Wi-Fi. Wireless communication that conforms to the above may be used. Bluetooth is composed of Basic Rate / Enhanced Data Rate (BR / EDR) and Bluetooth Low Energy (LE), which may be either, but the current latest specification is Bluetooth 5.0. The data rate (baud rate) of Bluetooth 5.0 is 2 Mbps, 1 Mbps, and 125 kbps, the arrival distance of the former two is 100 m (reference value), and the arrival distance of 125 kbps is 400 m (reference value). If the output is increased by lowering the data rate (baud rate), the reach distance will be increased. Conversely, if the output is lowered by increasing the data rate (baud rate), the reach distance will be shortened. It is assumed that this reach will be longer in the future.

Bluetoothでは、ブロードキャストとコネクションという2つのモードがあるがいずれであってもよい。ブロードキャストモードでは、車両制御装置100がデータを発信するブロードキャスタとなり、携帯機Fがオブザーバとなる。車両制御装置100がアドバタイズパケットを発信すると携帯機Fがそれを受信することで、車両制御装置100から携帯機Fへ情報が伝達される。コネクションモードでは、コネクションを開始する側のデバイスをマスター、マスターのコネクション開始要求を受け付け、以降マスターのタイミングでデータの送受信をおこなうデバイスをスレーブと呼ぶが、データ自体は双方向に通信できるので、予めペアリングしておけば、車両制御装置100と携帯機Fは、いずれであってもよい。   In Bluetooth, there are two modes, broadcast and connection. In the broadcast mode, the vehicle control device 100 serves as a broadcaster that transmits data, and the portable device F serves as an observer. When the vehicle control device 100 transmits an advertisement packet, the portable device F receives the advertisement packet, whereby information is transmitted from the vehicle control device 100 to the portable device F. In the connection mode, the device that initiates the connection is called the master, the device that accepts the master connection start request, and the device that sends and receives data at the master timing is called the slave, but the data itself can be communicated in both directions. If paired, the vehicle control device 100 and the portable device F may be either.

車両制御装置100がマスター、携帯機Fがスレーブの場合、車両制御装置100がコネクション要求を出して携帯機Fが受け付けてコネクションが確立したら、車両制御装置100が携帯機Fへ情報をプッシュすることで車両制御装置100から携帯機Fへ情報が伝達される。車両制御装置100がスレーブ、携帯機Fがマスターの場合、携帯機Fがコネクション要求を出して車両制御装置100が受け付けてコネクションが確立したら、携帯機Fが車両制御装置100から情報を取得することで車両制御装置100から携帯機Fへ情報が伝達される。   When the vehicle control device 100 is a master and the portable device F is a slave, when the vehicle control device 100 issues a connection request and the portable device F accepts and establishes a connection, the vehicle control device 100 pushes information to the portable device F. Thus, information is transmitted from the vehicle control device 100 to the portable device F. When the vehicle control device 100 is a slave and the portable device F is a master, the portable device F obtains information from the vehicle control device 100 when the portable device F issues a connection request and the vehicle control device 100 accepts and establishes a connection. Thus, information is transmitted from the vehicle control device 100 to the portable device F.

車両制御装置100は、近距離無線通信による探索信号を送信する携帯機探索部11と、車両Cの状態を検出する車両状態検出部20と、車両Cの状態を前記携帯機に通知する車両状態通知部30と、携帯機Fと近距離無線通信により送受信を行う送受信部40と、これら全体を制御する制御部10と、を備える。また、車両制御装置100は、さらに選択的に、車両Cのドアのロック状態や開閉状態を制御するドア制御部50と、車両Cの盗難を監視する盗難監視部60と、バッテリの充電状態などを監視するバッテリ監視部70と、を備える。   The vehicle control device 100 includes a portable device search unit 11 that transmits a search signal by short-range wireless communication, a vehicle state detection unit 20 that detects a state of the vehicle C, and a vehicle state that notifies the portable device of the state of the vehicle C. The notification part 30, the transmission / reception part 40 which transmits / receives with the portable apparatus F by near field communication, and the control part 10 which controls these whole are provided. In addition, the vehicle control device 100 further selectively includes a door control unit 50 that controls a locked state and an open / close state of the door of the vehicle C, a theft monitoring unit 60 that monitors the theft of the vehicle C, a charging state of the battery, and the like. A battery monitoring unit 70 for monitoring

車両状態検出部20は、ドア制御部50、盗難監視部60およびバッテリ監視部70と接続され、それぞれから情報を検出して取得する。たとえば、車両状態検出部20は、ドア制御部50から、ドアの施錠状態/解錠状態/開閉状態やウィンドウの開閉状態などの情報を取得する。また、車両状態検出部20は、盗難監視部60から、ガラスの破壊、所定の手順を踏まない不正侵入、不正エンジン始動などの情報を取得する。また、車両状態検出部20は、バッテリ監視部70から、バッテリの充電残量、バッテリの充電状態、バッテリの放電状態などの情報を取得する。   The vehicle state detection unit 20 is connected to the door control unit 50, the theft monitoring unit 60, and the battery monitoring unit 70, and detects and acquires information from each of them. For example, the vehicle state detection unit 20 acquires information such as a door locking state / unlocking state / opening / closing state and a window opening / closing state from the door control unit 50. In addition, the vehicle state detection unit 20 acquires information from the theft monitoring unit 60 such as glass breakage, unauthorized intrusion without following a predetermined procedure, and unauthorized engine start. In addition, the vehicle state detection unit 20 acquires information such as the remaining charge of the battery, the charge state of the battery, and the discharge state of the battery from the battery monitoring unit 70.

携帯機探索部11は、通常時は、近距離無線通信における最大到達可能距離よりもかなり短い到達距離の出力信号強度で探索信号を送受信部40から出力する。すなわち、携帯機探索部11は、通常時は、第1の探索範囲で探索信号を送信し、携帯機Fを探索する。たとえば、Bluetoothで最大到達可能距離が400mならば、携帯機探索部11は、通常時は、数メートル程度の出力信号強度で探索信号を送信してもよい。この場合、車両Cから数メートルの範囲内に携帯機Fが存在していれば、近距離無線通信が確立し、車両制御装置100から携帯機Fへ情報が伝達される。一方、携帯機Fがその範囲内になければ、近距離無線通信が確立できないので、車両制御装置100から携帯機Fへ情報は伝達されない。なお、探索信号とは、Bluetoothにおいては、ブロードキャストモードの場合はアドバタイズパケットであり、コネクションモードの場合は、コネクション要求の信号である。Bluetooth以外の近距離無線通信において、探索信号とは、両者のコネクションを確立するために一方が他方に送信する信号を言う。   The portable device search unit 11 normally outputs a search signal from the transmission / reception unit 40 with an output signal strength of a reach distance that is considerably shorter than the maximum reachable distance in short-range wireless communication. That is, the portable device search unit 11 searches for the portable device F by transmitting a search signal in the first search range during normal times. For example, if the maximum reachable distance is 400 m in Bluetooth, the portable device search unit 11 may normally transmit a search signal with an output signal strength of about several meters. In this case, if the portable device F exists within a range of several meters from the vehicle C, short-range wireless communication is established, and information is transmitted from the vehicle control device 100 to the portable device F. On the other hand, if the portable device F is not within the range, short-range wireless communication cannot be established, so that information is not transmitted from the vehicle control device 100 to the portable device F. In Bluetooth, the search signal is an advertisement packet in the broadcast mode, and a connection request signal in the connection mode. In short-range wireless communication other than Bluetooth, a search signal is a signal that one transmits to the other in order to establish a connection between the two.

車両状態通知部30は、携帯機Fとの近距離無線通信が確立した場合、車両状態検出部20が検出した状態を携帯機Fに通知する。たとえば、通常時おいても、たとえば数メートルの範囲内に携帯機Fが存在していれば近距離無線通信が確立するので、車両状態通知部30は、検出した状態を携帯機Fに通知する。一方、通常時において、たとえば100メートル以上車両Cから離れた位置に携帯機Fがある場合は、近距離無線通信は確立しないので、車両状態検出部20が検出した状態を携帯機Fに通知することはない。   When the short-range wireless communication with the portable device F is established, the vehicle state notification unit 30 notifies the portable device F of the state detected by the vehicle state detection unit 20. For example, even in normal time, if the portable device F is present within a range of several meters, for example, short-range wireless communication is established, so the vehicle state notification unit 30 notifies the detected state to the portable device F. . On the other hand, in the normal time, for example, when the portable device F is located at a position away from the vehicle C by 100 meters or more, the short-range wireless communication is not established. There is nothing.

携帯機探索部11は、車両状態検出部20が異常な状態を検出すると、通常時の出力信号強度よりも強い強度で探索信号を送信し始める。すなわち、携帯機探索部11は、異常な状態を検出した場合など特定な場合には、第1の探索範囲よりも広い第2の探索範囲で携帯機Fの探索を開始する。たとえば、Bluetoothで最大到達可能距離が400mならば、その最大到達可能距離に到達する出力信号強度で探索信号を送信してもよいし、通常時が数メートル程度の範囲ならば、100メートル程度の出力信号強度で探索信号を送信してもよい。   When the vehicle state detection unit 20 detects an abnormal state, the portable device search unit 11 starts to transmit a search signal with a strength stronger than the normal output signal strength. That is, the portable device search unit 11 starts searching for the portable device F in a second search range wider than the first search range in a specific case such as when an abnormal state is detected. For example, if the maximum reachable distance is 400 m in Bluetooth, the search signal may be transmitted with the output signal intensity reaching the maximum reachable distance. If the normal time is in the range of several meters, it is about 100 meters. The search signal may be transmitted with the output signal strength.

たとえば、携帯機Fが100メートル程度車両Cから離れた位置にあったため通常時では近距離無線通信の確立ができなかったが、車両Cで異常な状態を検出した場合には、早急に携帯機Fの使用者に連絡することが望まれる。この場合には、車両Cから近距離無線通信の100メートル程度離れた位置にある携帯機Fに対して通信を確立させて、車両状態通知部30は、携帯機Fに車両Cの状態を通知する。   For example, since the portable device F was located at a position away from the vehicle C by about 100 meters, the short-range wireless communication could not be established in normal times. However, if an abnormal state is detected in the vehicle C, the portable device F is immediately It is desirable to contact the F user. In this case, communication is established with respect to the portable device F at a position about 100 meters away from the vehicle C for short-range wireless communication, and the vehicle state notification unit 30 notifies the portable device F of the state of the vehicle C. To do.

このように、車両制御装置100は、通常時にはあまり広い範囲で通信を確立させないが、異常な状態を検出するとより広い範囲で探索を開始し、携帯機Fとの通信を確立させて携帯機Fに車両Cの状態を通知する。これにより、長い通信可能距離を有する近距離無線通信であっても、通常の場合は不用意に通信がなされることがないので誤作動を防止すると共に、異常な状態など特定の場合には長い通信距離で通信を行うことで使用者が車両Cから離れた位置にいても連絡することのできる車両制御装置100を提供することができる。また、車両制御装置100は、異常状態を検出すると通常より広い範囲で探索を開始し、携帯機Fとの通信が確立した場合に携帯機Fに車両Cの状態を通知することで、使用者がいち早く異常に気付きやすくすることができる。また、車両制御装置100は、通常の場合は狭い範囲で探索を行うので携帯機Fと繋がりにくくなり、誤作動を防止することができる。   As described above, the vehicle control device 100 normally does not establish communication over a very wide range, but when an abnormal state is detected, the vehicle control device 100 starts a search over a wider range and establishes communication with the portable device F to establish the portable device F. Is notified of the state of the vehicle C. As a result, even in short-distance wireless communication having a long communicable distance, communication is not inadvertently performed in a normal case, so that malfunction is prevented and long in a specific case such as an abnormal state. It is possible to provide the vehicle control device 100 that can communicate even when the user is away from the vehicle C by performing communication at a communication distance. Further, when the vehicle control apparatus 100 detects an abnormal state, the vehicle control apparatus 100 starts a search in a wider range than usual, and when communication with the portable device F is established, notifies the portable device F of the state of the vehicle C, so that the user It is easy to notice abnormalities quickly. Moreover, since the vehicle control apparatus 100 normally searches in a narrow range, it becomes difficult to connect to the portable device F, and malfunction can be prevented.

また、上述したことは、携帯機Fと車両C間の近距離無線通信を制御する車両制御方法でもある。すなわち、この車両制御方法は、近距離無線通信により、携帯機Fを第1の探索範囲で探索する探索信号を送信し、車両Cの状態を検出し、異常な状態を検出した場合、第1の探索範囲よりも広い第2の探索範囲で携帯機Fの探索を開始し、携帯機Fとの近距離無線通信が確立した場合、携帯機Fに車両の状態を通知する。こうすることにより、長い通信可能距離を有する近距離無線通信であっても、誤作動を防止すると共に、特定の場合には長い通信距離で通信を行える車両制御方法を提供することができる。   In addition, what has been described above is also a vehicle control method for controlling short-range wireless communication between the portable device F and the vehicle C. That is, this vehicle control method transmits a search signal for searching for the portable device F in the first search range by short-range wireless communication, detects the state of the vehicle C, and detects the abnormal state. When the search for the portable device F is started in the second search range wider than the search range of the mobile phone F and short-range wireless communication with the portable device F is established, the mobile device F is notified of the vehicle state. By doing so, it is possible to provide a vehicle control method capable of preventing malfunction even in short-range wireless communication having a long communicable distance and capable of performing communication at a long communication distance in a specific case.

また、車両制御装置100は、異常な状態を検出しより広い範囲で探索して、携帯機Fに車両Cの異常な状態を通知した後に、通常時のより狭い範囲にのみ到達する出力信号強度に戻して探索信号を送信してもよい。すなわち、携帯機探索部11が第2の探索範囲で携帯機Fの探索を開始し、車両状態通知部30から携帯機Fに車両Cの状態を通知した後、第1の探索範囲での探索を再開してもよい。こうすることにより、広い範囲に送達可能なことで起こる誤作動を防止することができると共に、消費電力を抑制することができる。   Further, the vehicle control device 100 detects an abnormal state, searches in a wider range, notifies the portable device F of the abnormal state of the vehicle C, and then reaches an output signal intensity that reaches only a narrower range during normal times. Alternatively, the search signal may be transmitted. That is, after the portable device search unit 11 starts searching for the portable device F in the second search range, the vehicle state notification unit 30 notifies the portable device F of the state of the vehicle C, and then searches in the first search range. May be resumed. By doing so, it is possible to prevent malfunction caused by being able to be delivered to a wide range and to suppress power consumption.

車両制御装置100の車両状態検出部20は、予め車両Cの状態を重要度と緊急度に分類し、各分類に応じた探索信号の信号強度を記憶する状態信号記憶部21をさらに備えてもよい。重要度とは、重大な問題が生じているか否か、重大な問題に繋がる可能性の大きい状態になっているか否かなどの観点で車両Cの状態を分類する尺度を言う。また、緊急度とは、至急対応する必要が生じているか否かなどの観点で車両Cの状態を分類する尺度を言う。たとえば、車両の盗難は、重要度が高く緊急度も高い。バッテリの充電開始や完了は、重要度は低いが緊急度は高い。車両点検用のマイクロコード(ダイアグ)による異常は、重要度は高いが緊急度は低い。燃費情報やスライドドアの開扉等の予約情報は、重要度も緊急度も低い。   The vehicle state detection unit 20 of the vehicle control device 100 further includes a state signal storage unit 21 that previously classifies the state of the vehicle C into importance and urgency and stores the signal strength of the search signal corresponding to each classification. Good. The importance level is a scale for classifying the state of the vehicle C from the viewpoint of whether or not a serious problem has occurred and whether or not the situation is likely to lead to a serious problem. The urgency level is a scale for classifying the state of the vehicle C from the viewpoint of whether or not it is necessary to respond immediately. For example, vehicle theft is highly important and urgent. The start and completion of battery charging are less important but more urgent. Anomalies caused by vehicle inspection microcode (diag) are high in importance but low in urgency. Reservation information such as fuel efficiency information and sliding door opening is less important and less urgent.

状態信号記憶部21は、本図右下に示す重要緊急度のマトリックスのように、重要度と緊急度により二次元状に車両Cで起こり得る状態を区分して記憶することが好ましい。なお、本図で示すマトリックスは、重要度の高低と緊急度の高低で4つの区分に分けられているが、いくつの区分に分けてもよい。状態信号記憶部21は、各区分に応じた探索信号の信号強度を記憶する。たとえば、重要度が高く緊急度も高い分類(重要緊急度4)は、最も強い出力信号強度を割り当て、重要度が低く緊急度も低い分類(重要緊急度1)は、最も弱い出力信号強度を割り当て、重要度が高く緊急度が低い分類(重要緊急度2)および重要度が低く緊急度が高い分類(重要緊急度3)は、中間の強さの出力信号強度を割り当てるようにする。   The state signal storage unit 21 preferably stores a state that can occur in the vehicle C in a two-dimensional manner according to the importance level and the urgency level, like a matrix of important urgency levels shown in the lower right of the figure. The matrix shown in this figure is divided into four sections according to the level of importance and the level of urgency, but may be divided into any number of sections. The state signal storage unit 21 stores the signal strength of the search signal corresponding to each section. For example, a category with high importance and high urgency (important urgency 4) is assigned the strongest output signal strength, and a category with low importance and low urgency (important urgency 1) assigns the weakest output signal strength. For the assignment, the classification with high importance and low urgency (important urgency 2) and the classification with low importance and high urgency (important urgency 3), the output signal strength of intermediate strength is assigned.

たとえば、図2に示すように、重要緊急度1の信号強度の探索信号は、車両Cから10m程度まで到達する。重要緊急度2または3の信号強度の探索信号は、車両Cから30m程度まで到達する。重要緊急度4の信号強度の探索信号は、車両Cから50m程度まで到達する。   For example, as shown in FIG. 2, the search signal with the signal strength of the critical urgency level 1 reaches about 10 m from the vehicle C. A search signal with a signal strength of critical urgency level 2 or 3 reaches from vehicle C to about 30 m. The search signal with the signal strength of the critical urgency level 4 reaches about 50 m from the vehicle C.

携帯機探索部11は、状態信号記憶部21にこのように各分類に応じて記憶された信号強度に基づいて、車両状態検出部20が検出した状態の重要度と緊急度に応じて信号強度を変更して探索することが好ましい。このように、予め車両Cの状態を重要度と緊急度に分類し、各分類に応じた探索信号の信号強度を定めて置き、その信号強度に基づいて、検出した状態の重要度と緊急度に応じて信号強度を変更して探索することで、長い通信可能距離を有する近距離無線通信であっても、状況に応じて適切な通信距離で通信を行うことができる。   Based on the signal strengths stored in the state signal storage unit 21 according to the respective classifications, the portable device search unit 11 determines the signal strength according to the importance and urgency of the state detected by the vehicle state detection unit 20. It is preferable to search by changing. In this way, the state of the vehicle C is classified in advance into importance and urgency, the signal strength of the search signal corresponding to each classification is determined, and the importance and urgency of the detected state are determined based on the signal strength. By changing the signal strength according to the search, even near field communication having a long communicable distance, communication can be performed at an appropriate communication distance depending on the situation.

図3を参照して、車両制御装置100における制御方法の概要を説明する。なお、フローチャートにおけるSはステップを示す。制御部10は、S100において、車両状態検出部20が検出した車両Cの状態が、状態信号記憶部21内の重要緊急度のいずれに該当するのかを比較する。制御部10は、S102において、車両Cの状態が重要緊急度1に該当するか否かを検査する。該当した場合、携帯機探索部11は、S104において最も弱い出力信号強度に設定し、S114において送受信部40から探索信号を送信する。   With reference to FIG. 3, the outline | summary of the control method in the vehicle control apparatus 100 is demonstrated. In the flowchart, S indicates a step. In S <b> 100, the control unit 10 compares which of the important urgency levels in the state signal storage unit 21 corresponds to the state of the vehicle C detected by the vehicle state detection unit 20. In S102, the control unit 10 checks whether or not the state of the vehicle C corresponds to the critical urgency level 1. If applicable, the portable device search unit 11 sets the weakest output signal strength in S104, and transmits a search signal from the transmission / reception unit 40 in S114.

該当しなかった場合、制御部10は、S106において、車両Cの状態が重要緊急度2または3に該当するか否かを検査する。これに該当した場合、携帯機探索部11は、S108において中間の出力信号強度に設定し、S114において送受信部40から探索信号を送信する。また、これに該当しなかった場合、制御部10は、S110において、車両Cの状態が重要緊急度4に該当するか否かを検査する。車両Cの状態が重要緊急度4に該当するとされた場合、携帯機探索部11は、S112において最も強い出力信号強度に設定し、S114において送受信部40から探索信号を送信する。車両Cの状態が重要緊急度4にも該当しないとされた場合、出力信号強度を設定せず、かつ探索信号も送信しないで処理を終了する。たとえば、重要緊急度4に分類される不正侵入を盗難監視部60が検出した場合、S100で不正侵入の状態が重要緊急度のいずれに該当するのかが比較され、S110で不正侵入は重要緊急度4と判定され、S112で出力信号強度は最も強い強度に設定されて、S114でその強度で探索信号は送信される。   When not corresponding, the control part 10 test | inspects whether the state of the vehicle C corresponds to the critical urgency level 2 or 3 in S106. If this is the case, the portable device search unit 11 sets an intermediate output signal strength in S108, and transmits a search signal from the transmission / reception unit 40 in S114. If this is not the case, the control unit 10 checks whether or not the state of the vehicle C corresponds to the critical urgency level 4 in S110. When the state of the vehicle C corresponds to the critical urgency level 4, the portable device search unit 11 sets the strongest output signal strength in S112, and transmits a search signal from the transmission / reception unit 40 in S114. If it is determined that the state of the vehicle C does not correspond to the critical urgency level 4, the process is terminated without setting the output signal strength and without transmitting the search signal. For example, when the theft monitoring unit 60 detects an unauthorized intrusion classified as the critical urgency level 4, in S100, it is compared to which of the critical urgency levels the unauthorized intrusion state corresponds, and in S110, the unauthorized intrusion is determined as an important urgency level. 4, the output signal strength is set to the strongest strength in S112, and the search signal is transmitted at that strength in S114.

図4を参照して、車両制御装置100における通信間隔を説明する。状態信号記憶部21は、各分類に応じた探索信号の信号間隔をさらに記憶していることが好ましい。そうすると、上述した重要緊急度の分類に応じた探索信号の信号強度と同様に、携帯機探索部11は、この信号間隔に基づいて、検出した状態の重要度と緊急度に応じて信号間隔を変更して探索する。本図に示すように、重要緊急度1の場合は通信間隔は最も長く、重要緊急度2又は3の場合は通信間隔は中間の長さであり、重要緊急度4の場合は最も短い通信間隔で探索信号を送信することになる。このように、各分類に応じた探索信号の信号間隔を定め、その信号間隔に基づいて、検出した状態の重要度と緊急度に応じて信号間隔を変更して探索することで、通信の必要性が高い場合には早急に通知を行うことができると共に、必要性が低い場合には消費電力を抑制することができる。   A communication interval in the vehicle control device 100 will be described with reference to FIG. It is preferable that the state signal storage unit 21 further stores a signal interval of the search signal corresponding to each classification. Then, similarly to the signal strength of the search signal corresponding to the classification of the importance urgency described above, the portable device search unit 11 sets the signal interval according to the detected importance and urgency based on this signal interval. Change and explore. As shown in the figure, the communication interval is the longest when the critical urgency is 1, the communication interval is an intermediate length when the critical urgency is 2 or 3, and the shortest communication interval when the critical urgency is 4. The search signal is transmitted by. In this way, the signal interval of the search signal corresponding to each classification is determined, and based on the signal interval, the search is performed by changing the signal interval according to the importance level and the urgency level of the detected state. When the performance is high, notification can be made immediately, and when the necessity is low, power consumption can be suppressed.

なお、本発明は、例示した実施例に限定するものではなく、特許請求の範囲の各項に記載された内容から逸脱しない範囲の構成による実施が可能である。すなわち、本発明は、主に特定の実施形態に関して特に図示され、かつ説明されているが、本発明の技術的思想および目的の範囲から逸脱することなく、以上述べた実施形態に対し、数量、その他の詳細な構成において、当業者が様々な変形を加えることができるものである。   In addition, this invention is not limited to the illustrated Example, The implementation by the structure of the range which does not deviate from the content described in each item of a claim is possible. That is, although the present invention has been particularly illustrated and described with respect to particular embodiments, it should be understood that the present invention has been described in terms of quantity, quantity, and amount without departing from the scope and spirit of the present invention. In other detailed configurations, various modifications can be made by those skilled in the art.

100 車両制御装置
10 制御部
11 携帯機探索部
20 車両状態検出部
21 状態信号記憶部
30 車両状態通知部
40 送受信部
50 ドア制御部
60 盗難監視部
70 バッテリ監視部
F 携帯機
F10 携帯機制御部
F20 携帯機送受信部
F30 携帯機表示部
C 車両
DESCRIPTION OF SYMBOLS 100 Vehicle control apparatus 10 Control part 11 Portable machine search part 20 Vehicle state detection part 21 State signal storage part 30 Vehicle state notification part 40 Transmission / reception part 50 Door control part 60 Theft monitoring part 70 Battery monitoring part F Portable machine F10 Portable machine control part F20 portable device transmission / reception unit F30 portable device display unit C vehicle

Claims (5)

携帯機と近距離無線通信を行う車両制御装置であって、
前記近距離無線通信による探索信号を送信し、前記携帯機を第1の探索範囲で探索する携帯機探索部と、
車両の状態を検出する車両状態検出部と、
前記車両状態検出部が検出した状態を前記携帯機に通知する車両状態通知部と、
を備え、
前記携帯機探索部は、前記車両状態検出部が異常な状態を検出すると、前記第1の探索範囲よりも広い第2の探索範囲で前記携帯機の探索を開始し、前記携帯機との前記近距離無線通信が確立した場合、前記車両状態通知部は、前記携帯機に前記車両の状態を通知する、
車両制御装置。
A vehicle control device that performs near field communication with a portable device,
A portable device search unit that transmits a search signal by the short-range wireless communication and searches the portable device in a first search range;
A vehicle state detector for detecting the state of the vehicle;
A vehicle state notification unit for notifying the portable device of the state detected by the vehicle state detection unit;
With
When the vehicle state detection unit detects an abnormal state, the portable device search unit starts searching for the portable device in a second search range wider than the first search range, and When short-range wireless communication is established, the vehicle state notification unit notifies the portable device of the state of the vehicle.
Vehicle control device.
前記車両状態検出部は、予め前記車両の状態を重要度と緊急度に分類し、各分類に応じた探索信号の信号強度を記憶する状態信号記憶部を備え、
前記携帯機探索部は、前記状態信号記憶部の信号強度に基づいて、検出した状態の重要度と緊急度に応じて信号強度を変更して探索することを特徴とする請求項1に記載の車両制御装置。
The vehicle state detection unit includes a state signal storage unit that classifies the vehicle state into importance and urgency in advance, and stores the signal strength of a search signal corresponding to each classification,
2. The search according to claim 1, wherein the portable device search unit searches based on the signal strength of the state signal storage unit by changing the signal strength according to the importance level and the urgency level of the detected state. Vehicle control device.
前記状態信号記憶部は、各分類に応じた探索信号の信号間隔をさらに記憶し、
前記携帯機探索部は、前記状態信号記憶部の信号間隔に基づいて、検出した状態の重要度と緊急度に応じて信号間隔を変更して探索することを特徴とする請求項2に記載の車両制御装置。
The state signal storage unit further stores a signal interval of a search signal corresponding to each classification,
The said portable machine search part changes and searches a signal interval according to the importance and urgency of the detected state based on the signal interval of the said state signal memory | storage part, The search of Claim 2 characterized by the above-mentioned. Vehicle control device.
前記携帯機探索部が前記第2の探索範囲で前記携帯機の探索を開始し、前記車両状態通知部から前記携帯機に車両の状態を通知した後、前記第1の探索範囲での探索を再開することを特徴とする請求項1乃至3のいずれかに記載の車両制御装置。   After the portable device search unit starts searching for the portable device in the second search range and notifies the portable device of the vehicle state from the vehicle state notification unit, the search in the first search range is performed. The vehicle control device according to any one of claims 1 to 3, wherein the vehicle control device is restarted. 携帯機と車両間の近距離無線通信を制御する車両制御方法であって、
前記近距離無線通信により、前記携帯機を第1の探索範囲で探索する探索信号を送信し、
車両の状態を検出し、
異常な状態を検出した場合、前記第1の探索範囲よりも広い第2の探索範囲で前記携帯機の探索を開始し、前記携帯機との前記近距離無線通信が確立した場合、前記携帯機に前記車両の状態を通知する、
車両制御方法。
A vehicle control method for controlling short-range wireless communication between a portable device and a vehicle,
Sending a search signal for searching the portable device in a first search range by the short-range wireless communication,
Detect vehicle status,
When an abnormal state is detected, a search for the portable device is started in a second search range wider than the first search range, and when the short-range wireless communication with the portable device is established, the portable device To inform the state of the vehicle,
Vehicle control method.
JP2018043772A 2018-03-12 2018-03-12 Vehicle control device and vehicle control method Pending JP2019156084A (en)

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Country Link
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