JPH06281471A - Passing through propriety judging device for vehicle and possible passing-through speed setting device - Google Patents

Passing through propriety judging device for vehicle and possible passing-through speed setting device

Info

Publication number
JPH06281471A
JPH06281471A JP5068170A JP6817093A JPH06281471A JP H06281471 A JPH06281471 A JP H06281471A JP 5068170 A JP5068170 A JP 5068170A JP 6817093 A JP6817093 A JP 6817093A JP H06281471 A JPH06281471 A JP H06281471A
Authority
JP
Japan
Prior art keywords
vehicle
vehicle speed
passable
speed
calculating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP5068170A
Other languages
Japanese (ja)
Other versions
JP3366043B2 (en
Inventor
Shinkichi Asanuma
信吉 浅沼
Hiroshi Sekine
浩 関根
Ryoichi Tsuchiya
良一 土屋
Kazuya Tamura
和也 田村
Hiroyuki Kamiya
博之 紙谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP6817093A priority Critical patent/JP3366043B2/en
Priority to DE4408745A priority patent/DE4408745C2/en
Priority to US08/213,682 priority patent/US5539397A/en
Priority to GB9406025A priority patent/GB2276452B/en
Publication of JPH06281471A publication Critical patent/JPH06281471A/en
Application granted granted Critical
Publication of JP3366043B2 publication Critical patent/JP3366043B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To provide warning to a driver, and also adjust speeds so as to enable a vehicle to pass through a corner at an appropriate speed. CONSTITUTION:An area A through which a vehicle can pass at a present speed V0, is set up based on the temporary position P1 of your vehicle which is located forward by a set advanced distance L from the position P0 of your vehicle on a map, and on the possible minimum turning radius R determined by the vehicle speed V0. If node points N1... are located in the inside of the aforesaid area A, it is possible for the vehicle to pass through with the present speed V0 kept on as is, but if the nodes N1... are located outside beyond the aforesaid area A, is impossible for the vehicle to pass through with the present speed V0 kept on as is. When it is found impossible for the vehicle to pass through, the speed is lowered down to a speed at which the vehicle can pass through by means of warning, automatic braking and the like during the period of time for the vehicle to arrive at the temporary position P1 of your vehicle.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、車両が走行する道路の
道路データを含む地図を出力する地図情報出力手段と、
地図上における自車位置を検出する自車位置検出手段と
を備えた所謂ナビゲーションシステムを利用して、車両
が道路のコーナー等を適正車速で通過できるようにする
車両の通過可否判定装置及び車両の通過可能車速設定装
置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to map information output means for outputting a map including road data of a road on which a vehicle travels,
A so-called navigation system having a vehicle position detecting means for detecting a vehicle position on a map is used to enable the vehicle to pass through a corner of a road at an appropriate vehicle speed, The present invention relates to a passable vehicle speed setting device.

【0002】[0002]

【従来の技術】ナビゲーションシステムを利用した走行
情報表示装置として、例えば特開昭60−89298号
公報に記載されたものが公知である。
2. Description of the Related Art As a traveling information display device using a navigation system, for example, a device described in Japanese Patent Laid-Open No. 60-89298 is known.

【0003】上記走行情報表示装置は、自車位置と道路
のコーナーの曲率半径とに基づいて、現在の車速では通
過できないコーナーを車両の進行方向の一定区間に亘っ
て検出するとともに、前記コーナーを適正に通過し得る
適正車速を演算し、この適正車速を気象条件、車両重
量、乗車員数等の車両状態に応じて補正するようになっ
ている。
The traveling information display device detects a corner that cannot be passed at the current vehicle speed over a certain section in the traveling direction of the vehicle based on the position of the vehicle and the radius of curvature of the corner of the road, and detects the corner. An appropriate vehicle speed that can properly pass is calculated, and the appropriate vehicle speed is corrected according to vehicle conditions such as weather conditions, vehicle weight, and the number of passengers.

【0004】[0004]

【発明が解決しようとする課題】ところで上記従来の技
術は、その精度が道路のコーナーの曲率半径の演算精度
に大きく依存しており、それはナビゲーションシステム
の道路データの精度そのものに他ならない。しかしなが
ら、現在のナビゲーションシステムの道路データの精度
は、コーナーの曲率半径を正確に演算するには不充分で
ある。しかも上記従来の技術は、コーナーの曲率半径の
演算が複雑であり、大容量の演算装置が必要となる問題
がある。
By the way, the accuracy of the above-mentioned conventional technique largely depends on the accuracy of calculation of the radius of curvature of the corner of the road, which is exactly the accuracy of the road data of the navigation system. However, the accuracy of the road data of the current navigation system is insufficient to accurately calculate the radius of curvature of the corner. Moreover, the above-mentioned conventional technique has a problem in that the calculation of the radius of curvature of the corner is complicated and a large-capacity calculation device is required.

【0005】本発明は前述の事情に鑑みてなされたもの
で、道路のコーナーの曲率半径を演算することなく、コ
ーナーにおける車両の通過可否を的確に判定し、且つコ
ーナーにおける車両の通過可能車速を的確に設定するこ
とを目的とする。
The present invention has been made in view of the above circumstances, and accurately determines whether or not a vehicle can pass through a corner without calculating the radius of curvature of the corner of the road, and determines the vehicle speed at which the vehicle can pass through the corner. The purpose is to set accurately.

【0006】[0006]

【課題を解決するための手段】前記目的を達成するため
に、請求項1に記載された車両の通過可否判定装置は、
車両が走行する道路の道路データを含む地図を出力する
地図情報出力手段と、地図上における自車位置を検出す
る自車位置検出手段と、車速を検出する車速検出手段
と、検出した車速に基づいて地図上の通過可能エリアを
演算する通過可能エリア演算手段と、自車位置よりも前
方の道路データと前記通過可能エリアとを比較し、道路
データが通過可能エリア内に含まれるときに車両が通過
可能であることを判定する通過可否判定手段と、を備え
たことを特徴とする。
In order to achieve the above-mentioned object, a vehicle passability determination device according to claim 1 is provided.
Based on the detected vehicle speed, map information output means for outputting a map including road data of the road on which the vehicle travels, own vehicle position detecting means for detecting the own vehicle position on the map, vehicle speed detecting means for detecting the vehicle speed, The passable area calculating means for calculating the passable area on the map is compared with the road data ahead of the vehicle position and the passable area, and when the road data is included in the passable area, the vehicle is And a passability determination means for determining that the vehicle is passable.

【0007】また請求項2に記載された車両の通過可否
判定装置は、請求項1の構成に加えて、車速に基づいて
車両の最小旋回可能半径を演算する最小旋回可能半径演
算手段を備え、この最小旋回可能半径に基づいて通過可
能エリアを演算することを特徴とする。
In addition to the structure of claim 1, the vehicle passability determination device according to claim 2 further comprises minimum turnable radius calculation means for calculating the minimum turnable radius of the vehicle based on the vehicle speed, It is characterized in that the passable area is calculated based on the minimum turnable radius.

【0008】また請求項3に記載された車両の通過可否
判定装置は、請求項1の構成に加えて、車両の運転状態
及び/又は車両の走行環境に基づいて前記通過可能エリ
アを演算することを特徴とする。請求項1記載の車両の
通過可否判定装置。
In addition to the configuration of claim 1, the vehicle passability determination device according to claim 3 calculates the passable area based on the driving state of the vehicle and / or the traveling environment of the vehicle. Is characterized by. The vehicle passability determination device according to claim 1.

【0009】また請求項4に記載された車両の通過可否
判定装置は、請求項1の構成に加えて、車速に基づいて
自車位置よりも前方の仮自車位置を演算する仮自車位置
演算手段を備え、この仮自車位置を基準として通過可能
エリアを演算することを特徴とする。
In addition to the configuration of claim 1, the vehicle passability determination device according to claim 4 is the provisional vehicle position for calculating the provisional vehicle position ahead of the vehicle position based on the vehicle speed. It is characterized in that it comprises a computing means and computes a passable area on the basis of this temporary vehicle position.

【0010】また請求項5に記載された車両の通過可能
車速設定装置は、車両が走行する道路の道路データを含
む地図を出力する地図情報出力手段と、地図上における
自車位置を検出する自車位置検出手段と、自車位置より
も前方の道路データに基づいて、その道路を通過するた
めに必要な車両の最大旋回半径を演算する最大旋回半径
演算手段と、最大旋回半径に基づいて通過可能車速を演
算する通過可能車速演算手段と、を備えたことを特徴と
する。
Further, the vehicle passable vehicle speed setting device according to claim 5 is a map information output means for outputting a map including road data of a road on which the vehicle travels, and a self-vehicle position detecting means for detecting a position of the own vehicle on the map. Vehicle position detection means, maximum turning radius calculation means for calculating the maximum turning radius of the vehicle required to pass the road based on road data ahead of the vehicle position, and passing based on the maximum turning radius And a passing vehicle speed calculating means for calculating a possible vehicle speed.

【0011】また請求項6に記載された車両の通過可能
車速設定装置は、請求項5の構成に加えて、車速を検出
する車速検出手段と、検出した車速と前記通過可能車速
とを比較する比較手段とを備え、車速が通過可能車速を
越えたときに警告及び/又は車速制御を行うことを特徴
とする。
In addition to the configuration of claim 5, the vehicle passable vehicle speed setting device according to claim 6 compares the detected vehicle speed with the passable vehicle speed, in addition to the configuration of claim 5. And a warning and / or vehicle speed control when the vehicle speed exceeds a passable vehicle speed.

【0012】[0012]

【実施例】以下、図面に基づいて本発明の実施例を説明
する。
Embodiments of the present invention will be described below with reference to the drawings.

【0013】図1〜図8は本発明の一実施例を示すもの
で、図1は本発明装置の全体構成を示すブロック図、図
2は制御部のブロック図、図3は本発明の作用を示すフ
ローチャート、図4は低車速時における作用説明図、図
5は高車速時における作用説明図、図6は道路が通過可
能エリア内にある場合の作用説明図、図7は道路が通過
可能エリア外にある場合の作用説明図、図8は通過可能
車速を求めるための説明図である。
1 to 8 show an embodiment of the present invention. FIG. 1 is a block diagram showing the overall configuration of the device of the present invention, FIG. 2 is a block diagram of a control unit, and FIG. 3 is an operation of the present invention. FIG. 4 is an operation explanatory diagram when the vehicle speed is low, FIG. 5 is an operation explanatory diagram when the vehicle speed is high, FIG. 6 is an operation explanatory diagram when the road is in a passable area, and FIG. FIG. 8 is an explanatory diagram of the operation when the vehicle is outside the area, and FIG. 8 is an explanatory diagram for obtaining the passable vehicle speed.

【0014】図1において、NVは自動車用ナビゲーシ
ョンシステムであって、その内部に周知の慣性航法装置
1、ICカードやCD−ROMを用いた地図情報出力手
段2及び後述の種々の演算を行う制御部3を備える。慣
性航法装置1は、衛星通信装置4或いは近接通信装置5
からの自車位置情報、道路情報、交通情報等に加えて車
速検出手段6及びヨーレート検出手段7からの信号を受
け、これと前記地図情報出力手段2からの地図データと
に基づいて、自車の現在位置や目的地までの経路を演算
し、これをマンマシンインターフェイス8を介してCR
T9に表示するものである。そして、前記制御部3は慣
性航法装置1、地図情報出力手段2及び車速検出手段6
の出力に基づき、リアルタイムに後述の種々の演算を行
うものである。
In FIG. 1, NV is a navigation system for automobiles, in which a well-known inertial navigation device 1, map information output means 2 using an IC card or a CD-ROM, and control for performing various calculations to be described later are provided. The unit 3 is provided. The inertial navigation device 1 includes a satellite communication device 4 or a near field communication device 5.
In addition to the vehicle position information, road information, traffic information, etc. from the vehicle, signals from the vehicle speed detection means 6 and the yaw rate detection means 7 are received, and based on this and the map data from the map information output means 2, the own vehicle The current position of the car and the route to the destination are calculated, and this is CR via the man-machine interface 8.
It is displayed at T9. Then, the control unit 3 controls the inertial navigation device 1, the map information output unit 2, and the vehicle speed detection unit 6.
Based on the output of, the various calculations described below are performed in real time.

【0015】Cは車速調整装置であって、その内部に画
像作成手段11、警報手段12及び車速調整手段13を
備える。画像作成手段11は例えばヘッドアップディス
プレイよりなり、道路地図や自車位置或いはコーナーの
通過可能車速等を表示する。警報手段12はブザーやチ
ャイム等の音響手段よりなり、ドライバーに走行速度を
減速するように警報を発する。車速調整手段13はブレ
ーキ装置やオートクルーズ装置等からなり、コーナーを
通過し得るように車速を調整する。
Reference numeral C denotes a vehicle speed adjusting device, which has an image creating means 11, an alarm means 12, and a vehicle speed adjusting means 13 inside. The image creating means 11 is composed of, for example, a head-up display, and displays a road map, the position of the vehicle, or the vehicle speed at which a vehicle can pass through a corner. The warning means 12 is composed of an acoustic means such as a buzzer or a chime, and gives a warning to the driver to reduce the traveling speed. The vehicle speed adjusting means 13 is composed of a brake device, an auto cruise device, etc., and adjusts the vehicle speed so that the vehicle can pass through a corner.

【0016】図2に示すように、ナビゲーションシステ
ムNVの制御部3は、車速V0 に基づいて車両の最小旋
回可能半径Rを演算する最小旋回可能半径演算手段M1
と、車速V0 と自車位置P0 とから該自車位置P0 より
前方の仮自車位置P1 を演算する仮自車位置演算手段M
2と、最小旋回可能半径Rと仮自車位置P1 とから車両
の通過可能エリアAを演算する通過可能エリア演算手段
M3と、道路データNと通過可能エリアAとから車両が
コーナーを通過できるか否かを判定する通過可否判定手
段M4と、車両が現在の車速V0 でコーナーを通過でき
ない場合に、道路データNが通過可能エリアAに含まれ
るような最大旋回半径R′を演算する最大旋回半径演算
手段M5と、最大旋回半径R′に基づいて通過可能車速
MAX を演算する通過可能車速演算手段M6と、通過可
能車速VMAX と車速V0 とを比較する比較手段M7と、
を備えており、前記比較手段M7の出力に基づいて前記
車速調整装置Cが制御される。
As shown in FIG. 2, the control unit 3 of the navigation system NV calculates the minimum turnable radius R of the vehicle based on the vehicle speed V 0.
And a temporary vehicle position calculating means M for calculating a temporary vehicle position P 1 ahead of the vehicle position P 0 from the vehicle speed V 0 and the vehicle position P 0.
2, the minimum turnable radius R and the temporary vehicle position P 1 and the passable area calculating means M3 for calculating the passable area A of the vehicle, and the road data N and the passable area A allow the vehicle to pass through the corner. A maximum pass radius determination means M4 for determining whether or not, and a maximum turning radius R'where the road data N is included in the passable area A when the vehicle cannot pass the corner at the current vehicle speed V 0 A turning radius calculating means M5, a passing vehicle speed calculating means M6 for calculating a passing vehicle speed V MAX based on the maximum turning radius R ', and a comparing means M7 for comparing the passing vehicle speed V MAX with the vehicle speed V 0 ,
The vehicle speed adjusting device C is controlled based on the output of the comparing means M7.

【0017】次に、前記構成を備えた本発明の作用を、
図3のフローチャートを参照して説明する。
Next, the operation of the present invention having the above structure will be described.
This will be described with reference to the flowchart of FIG.

【0018】先ず、ナビゲーションシステムNVの慣性
航法装置1によって現在の自車位置P0 (X0 ,Y0
を検出し(ステップS1)、車速検出手段6によって現
在の車速V0 を検出する(ステップS2)。次に、前記
車速V0 に基づいて先読距離Lを演算し(ステップS
3)、前記自車位置P0 (X0 ,Y0 )と先読距離Lと
から、仮自車位置演算手段M2が仮自車位置P
1 (X1 ,Y1 )を演算する(ステップS4)。図4及
び図5に示すように、仮自車位置P1 (X1 ,Y1
は、コーナー通過の可否の判断及びコーナーを通過し得
る通過可能車速VMAX の設定を行う基準位置となるもの
で、現在の車速V0 が過大で仮自車位置P1 (X1 ,Y
1 )よりも前方のコーナーを通過できない場合に充分な
減速距離が確保できるように、前記先読距離Lは車速V
0 が大きいほど長く設定される。
First, the current position of the vehicle P 0 (X 0 , Y 0 ) is calculated by the inertial navigation system 1 of the navigation system NV.
Is detected (step S1), and the current vehicle speed V 0 is detected by the vehicle speed detecting means 6 (step S2). Next, the look-ahead distance L is calculated based on the vehicle speed V 0 (step S
3) Based on the own vehicle position P 0 (X 0 , Y 0 ) and the read-ahead distance L, the temporary own vehicle position calculating means M2 is operated by the temporary own vehicle position P.
1 (X 1 , Y 1 ) is calculated (step S4). As shown in FIGS. 4 and 5, the temporary vehicle position P 1 (X 1 , Y 1 )
Is a reference position for determining whether or not a vehicle can pass a corner and setting a vehicle speed V MAX at which the vehicle can pass through a corner. The current vehicle speed V 0 is too high and the provisional vehicle position P 1 (X 1 , Y
1 ) In order to ensure a sufficient deceleration distance when the vehicle cannot pass a corner ahead of 1 ), the look-ahead distance L is set to the vehicle speed V.
The larger 0 is, the longer the time is set.

【0019】続いて、最小旋回可能半径演算手段M1
が、車速V0 に基づいて車両の最小旋回可能半径Rをマ
ップ検索する(ステップS5)。この最小旋回可能半径
Rは、車速V0 が大きいときには大きく、車速V0 が小
さいときには小さくなる。
Next, the minimum turning radius calculation means M1
However, the map is searched for the minimum turnable radius R of the vehicle based on the vehicle speed V 0 (step S5). The minimum turnable radius R is large when the vehicle speed V 0 is high, and is small when the vehicle speed V 0 is low.

【0020】続いて、通過可能エリア演算手段M3によ
り、通過可能エリアAを演算する。即ち、最小旋回可能
半径Rを半径とする同一半径の2つの円弧C1 ,C2
仮自車位置P1 (X1 ,Y1 )において接するように描
き、この2つの円弧C1 ,C 2 の外側に通過可能エリア
Aを設定する(ステップS6)。図4に示すように、車
速V0 が小さいときには車両の最小旋回可能半径Rが小
さいため、通過可能エリアAは広くなり、逆に図5に示
すように、車速V0 が大きいときには車両の最小旋回可
能半径Rが大きいため、通過可能エリアAは狭くなる。
Then, the passable area calculating means M3 is used.
Then, the passable area A is calculated. That is, the minimum turning is possible
Two arcs C having the same radius with radius R as radius1, C2To
Temporary vehicle position P1(X1, Y1) So that it touches
The two arcs C1, C 2Passable area outside the
A is set (step S6). As shown in FIG.
Speed V0Is small, the minimum turnable radius R of the vehicle is small.
Therefore, the passable area A becomes wider, and on the contrary, it is shown in Fig. 5.
As you can see, the vehicle speed V0Minimum turning of the vehicle is possible when
Since the radius R is large, the passable area A is narrow.

【0021】続いて、地図情報出力手段2からの道路デ
ータ、即ち道路上に設定された複数のノード点N=
1 ,N2 ,N3 …が前記通過可能エリアA内にあるか
否かを判別する(ステップS7)。図4に示すようにノ
ード点Nが通過可能エリアA内にあるときには、車両は
現在の車速V0 のままでコーナーを通過可能であると判
断され、逆に図5に示すようにノード点Nが通過可能エ
リアA外にあるときには、車両は現在の車速V0 のまま
でコーナーを通過不能であると判断される。
Then, the road data from the map information output means 2, that is, a plurality of node points N = set on the road.
It is determined whether N 1 , N 2 , N 3 ... Are in the passable area A (step S7). As shown in FIG. 4, when the node point N is within the passable area A, it is determined that the vehicle can pass the corner at the current vehicle speed V 0 , and conversely, as shown in FIG. Is outside the passable area A, it is determined that the vehicle cannot pass the corner while maintaining the current vehicle speed V 0 .

【0022】ノード点Nが通過可能エリアAの内側及び
外側の何れにあるかは、通過可否判定手段M4において
次のようにして判断される。図6に示すように、半径R
の2つの円弧C1 ,C2 の中心とノード点Nとの距離L
1 ,L2 が共に前記半径Rよりも大きければノード点N
は通過可能エリアAの内側にあり、そのノード点Nを現
在の車速V0 で通過可能であると判断される。一方、図
7に示すように、半径Rの2つの円弧C1 ,C2 の中心
とノード点Nとの距離L1 ,L2 の一方(例えばL2
が前記半径Rよりも小さければノード点Nは通過可能エ
リアAの外側にあり、そのノード点Nを現在の車速V0
では通過不能であると判断される。
Whether the node point N is inside or outside the passable area A is determined by the passability determination means M4 as follows. As shown in FIG. 6, the radius R
Distance L between the center of the two arcs C 1 and C 2 and the node point N
If both 1 and L 2 are larger than the radius R, the node point N
Is inside the passable area A, and it is determined that the node point N can be passed at the current vehicle speed V 0 . On the other hand, as shown in FIG. 7, one of the distances L 1 and L 2 between the centers of the two arcs C 1 and C 2 having the radius R and the node point N (for example, L 2 )
Is smaller than the radius R, the node point N is outside the passable area A, and the node point N is located at the current vehicle speed V 0.
Then it is judged that it is impossible to pass.

【0023】尚、図8に示すように、例えばノード点N
1 ,N3 が通過可能エリアAの内側にあっても、ノード
点N2 が通過可能エリアAの外側にあれば、そのままの
車速V0 では通過不能である。従って、現在の車速V0
でコーナーを通過するには全てのノード点Nが通過可能
エリアAの内側にあることが必要である。
As shown in FIG. 8, for example, the node point N
Even if 1 and N 3 are inside the passable area A, if the node point N 2 is outside the passable area A, the vehicle cannot pass the vehicle speed V 0 as it is. Therefore, the current vehicle speed V 0
It is necessary that all the node points N are inside the passable area A in order to pass the corner at.

【0024】さて、前記ステップS7で通過不能である
と判断されると、コーナーを通過するために必要な最大
旋回半径R′を最大旋回半径演算手段M5で演算する
(ステップS8)。最大旋回半径R′は、全てのノード
点Nがその円弧C1 ′,C2 ′の内側に存在しなくなる
ような円弧C1 ′,C2 ′の半径R′として設定される
(図8参照)。従って、車両が前記最大旋回半径R′で
旋回できる速度まで減速すれば、コーナーを通過できる
ことになる。
When it is judged that the vehicle cannot pass through the step S7, the maximum turning radius R'necessary for passing the corner is calculated by the maximum turning radius calculating means M5 (step S8). The maximum turning radius R ′ is set as the radius R ′ of the arcs C 1 ′ and C 2 ′ so that all the node points N do not exist inside the arcs C 1 ′ and C 2 ′ (see FIG. 8). ). Therefore, if the vehicle is decelerated to a speed at which the vehicle can turn at the maximum turning radius R ', the vehicle can pass through the corner.

【0025】次に、前記最大旋回半径R′で旋回できる
車速V1 を通過可能車速演算手段M6で演算し(ステッ
プS9)、その車速V1 を通過可能車速VMAX として設
定する(ステップS10)。一方、前記ステップS7で
通過可能であると判断されるとステップS10に移行
し、現在の車速V0 をそのまま通過可能車速VMAX とし
て設定する。そしてで現在の車速V0 と通過可能車速V
MAX とを比較手段M7で比較し(ステップS11)、現
在の車速V0 が通過可能車速VMAX を越えている場合、
即ちコーナーを通過できない場合には、前記車速調整装
置Cの車速調整手段13によって車速V0 を調整し、仮
自車位置P1 に達するまで車速V0 を通過可能車速V
MAX 以下に減速する(ステップS12)。これにより、
車両はコーナーを確実に通過することができる。
Next, the vehicle speed V 1 at which the vehicle can turn with the maximum turning radius R'is calculated by the passable vehicle speed calculation means M6 (step S9), and the vehicle speed V 1 is set as the passable vehicle speed V MAX (step S10). . On the other hand, if it is determined in step S7 that the vehicle can pass, the process proceeds to step S10, and the current vehicle speed V 0 is set as it is as the vehicle speed V MAX that can be passed. Then, the current vehicle speed V 0 and the passable vehicle speed V
MAX is compared with the comparison means M7 (step S11), and if the current vehicle speed V 0 exceeds the passable vehicle speed V MAX ,
That is, when you can not pass through the corner, the adjusts the vehicle speed V 0 by the vehicle speed adjustment means 13 of the vehicle speed adjustment device C, can pass through the vehicle speed V 0 to reach the tentative position P 1 the vehicle speed V
The speed is reduced below MAX (step S12). This allows
The vehicle can definitely pass through the corner.

【0026】尚、車速V0 を通過可能車速VMAX 以下に
減速する際に警報手段12を併せて使用することができ
る。即ち、現在の車速V0 が通過可能車速VMAX の例え
ば1.2倍以内である場合には警報手段12を作動させ
て警報のみを行い、車速V0が通過可能車速VMAX
1.2倍以上になった場合に車速調整手段13を作動さ
せて減速を行うようにしても良い。
The alarm means 12 can also be used together when the vehicle speed V 0 is reduced to a speed at which the vehicle can pass the vehicle speed V MAX or less. That is, when the current vehicle speed V 0 is within 1.2 times the passable vehicle speed V MAX , for example, the warning means 12 is activated to give only an alarm, and the vehicle speed V 0 is 1.2 of the passable vehicle speed V MAX . When the speed is doubled or more, the vehicle speed adjusting means 13 may be operated to decelerate.

【0027】而して、複雑で精度が低いコーナーの曲率
半径の演算を実行することなく、車両がコーナーを通過
できるか否かを的確に判断し、現在の車速でコーナーを
通過できない場合には、警報手段12や車速調整手段1
3によって減速を行うことによりコーナーを適正な車速
で通過することが可能となる。
Thus, it is accurately determined whether or not the vehicle can pass through the corner without executing the complicated and low-precision calculation of the radius of curvature of the corner, and when the vehicle cannot pass through the corner at the current vehicle speed, , Warning means 12 and vehicle speed adjusting means 1
By decelerating by 3, it becomes possible to pass through the corner at an appropriate vehicle speed.

【0028】以上、本発明の実施例を詳述したが、本発
明は前記実施例に限定されるものでなく、種々の小設計
変更を行うことが可能である。
Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various small design changes can be made.

【0029】例えば、車速V0 に基づいて先読み距離L
及び最小旋回可能半径Rを設定する場合、車体重量等の
運転状態及び/又は路面の摩擦係数等の走行環境に基づ
いて前記先読み距離L及び最小旋回可能半径Rを補正す
ることができる。即ち、車体重量が大きく且つ路面の摩
擦係数が小さい場合には、先読み距離Lを大きく設定す
るとともに最小旋回可能半径Rを大きく設定すれば、よ
り的確な判定や制御を行うことが可能である。
For example, the look-ahead distance L is based on the vehicle speed V 0.
When the minimum turnable radius R is set, the look-ahead distance L and the minimum turnable radius R can be corrected based on the driving condition such as the weight of the vehicle body and / or the traveling environment such as the friction coefficient of the road surface. That is, when the weight of the vehicle body is large and the friction coefficient of the road surface is small, if the look-ahead distance L is set large and the minimum turnable radius R is set large, more accurate determination and control can be performed.

【0030】また、図3のフローチャートのステップS
11でNOの場合、即ち現在の車速V0 でコーナーを通
過できる場合、現在の車速V0 から速度を何km/h増
速してもコーナーを通過できるのか演算することが可能
である。
Further, step S in the flowchart of FIG.
If NO at 11, i.e. if it can pass through a corner at the current vehicle speed V 0, it is possible to Whatever km / h speed increase the speed from the current vehicle speed V 0 for calculating how can pass through the corner.

【0031】更に、刻々変化する通過可能車速VMAX
所定時間に亘って逐次更新しながらメモリに記憶し、記
憶した通過可能車速VMAX の最大値と現在の車速V0
を比較することができる。
Further, the passing vehicle speed V MAX that changes moment by moment is stored in the memory while being sequentially updated for a predetermined time, and the stored maximum value of the passing vehicle speed V MAX can be compared with the current vehicle speed V 0. it can.

【0032】[0032]

【発明の効果】以上のように請求項1に記載された発明
によれば、車速に基づいて地図上の通過可能エリアを設
定するとともに、自車位置よりも前方の道路データと前
記通過可能エリアとを比較し、道路データが通過可能エ
リア内に含まれるときに車両が通過可能であることを判
定しているので、複雑で精度のない道路の曲率半径の演
算を行うことなく、簡単な演算によって車両の通過可否
を的確に判定することができる。
As described above, according to the invention described in claim 1, the passable area on the map is set based on the vehicle speed, and the road data ahead of the vehicle position and the passable area are set. Since it is determined that the vehicle can pass when the road data is included in the passable area, it is possible to perform simple calculation without performing complicated and inaccurate calculation of the radius of curvature of the road. Thus, it is possible to accurately determine whether or not the vehicle can pass.

【0033】また請求項2に記載された発明によれば、
車速に基づいて車両の最小旋回可能半径を演算し、この
最小旋回可能半径に基づいて通過可能エリアを設定する
ことにより、正確な通過可能エリアを簡単に求めること
ができる。
According to the invention described in claim 2,
By calculating the minimum turnable radius of the vehicle based on the vehicle speed and setting the passable area based on this minimum turnable radius, an accurate passable area can be easily obtained.

【0034】また請求項3に記載された発明によれば、
車両の運転状態及び/又は車両の走行環境に基づいて通
過可能エリアを設定することにより、車両の通過可否の
判定をより的確に行うことができる。
According to the invention described in claim 3,
By setting the passable area based on the driving state of the vehicle and / or the traveling environment of the vehicle, it is possible to more accurately determine whether or not the vehicle can pass.

【0035】また請求項4に記載された発明によれば、
車速に基づいて自車位置よりも前方の仮自車位置を演算
し、この仮自車位置を基準として通過可能エリアを設定
することにより、車両が現在の車速のままでは通過不能
である場合に必要な減速距離を確保することができる。
According to the invention described in claim 4,
If the vehicle cannot pass at the current vehicle speed by calculating the temporary vehicle position ahead of the vehicle position based on the vehicle speed and setting the passable area based on this temporary vehicle position. The required deceleration distance can be secured.

【0036】また請求項5に記載された発明によれば、
地図上における自車位置よりも前方の道路を通過するた
めに必要な車両の最大旋回半径を演算し、この最大旋回
半径に基づいて通過可能車速を演算しているので、複雑
な道路の曲率半径の演算を行うことなく、簡単な演算に
よって通過可能車速を求めることができる。
According to the invention described in claim 5,
The radius of curvature of a complicated road is calculated because the maximum turning radius of the vehicle required to pass the road ahead of the vehicle position on the map is calculated, and the traversable vehicle speed is calculated based on this maximum turning radius. It is possible to obtain the passable vehicle speed by a simple calculation without performing the calculation.

【0037】また請求項6に記載された発明によれば、
検出した車速と通過可能車速とを比較し、車速が通過可
能車速を越えたときに警告及び/又は車速制御を行うこ
とにより、車両を通過可能車速まで確実に減速させるこ
とができる。
According to the invention described in claim 6,
By comparing the detected vehicle speed with the passable vehicle speed and performing warning and / or vehicle speed control when the vehicle speed exceeds the passable vehicle speed, the vehicle can be reliably decelerated to the passable vehicle speed.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明装置の全体構成を示すブロック図FIG. 1 is a block diagram showing the overall configuration of a device of the present invention.

【図2】制御部のブロック図FIG. 2 is a block diagram of a control unit.

【図3】本発明の作用を示すフローチャートFIG. 3 is a flowchart showing the operation of the present invention.

【図4】低車速時における作用説明図FIG. 4 is an operation explanatory view at a low vehicle speed.

【図5】高車速時における作用説明図FIG. 5 is an operation explanatory view at high vehicle speed.

【図6】道路が通過可能エリア内にある場合の作用説明
FIG. 6 is an operation explanatory diagram when a road is in a passable area.

【図7】道路が通過可能エリア外にある場合の作用説明
FIG. 7 is an explanatory diagram of an operation when the road is outside the passable area.

【図8】通過可能車速を求めるための説明図FIG. 8 is an explanatory diagram for obtaining a passable vehicle speed.

【符号の説明】[Explanation of symbols]

1 慣性航法装置(自車位置検出手段) 2 地図情報出力手段 6 車速検出手段 A 通過可能エリア N 道路データ P0 自車位置 P1 仮自車位置 R 最小旋回可能半径 R′ 最大旋回半径 V0 車速 VMAX 通過可能車速 M1 最小旋回可能半径演算手段 M2 仮自車位置演算手段 M3 通過可能エリア演算手段 M4 通過可否判定手段 M5 最大旋回半径演算手段 M6 通過可能車速演算手段 M7 比較手段1 Inertial navigation device (own vehicle position detecting means) 2 Map information output means 6 Vehicle speed detecting means A Passable area N Road data P 0 Own vehicle position P 1 Temporary own vehicle position R Minimum turning radius R'Maximum turning radius V 0 Vehicle speed V MAX Passable vehicle speed M1 Minimum turning radius calculation means M2 Temporary vehicle position calculation means M3 Passable area calculation means M4 Passability determination means M5 Maximum turning radius calculation means M6 Passable vehicle speed calculation means M7 Comparison means

───────────────────────────────────────────────────── フロントページの続き (72)発明者 田村 和也 埼玉県和光市中央1丁目4番1号 株式会 社本田技術研究所内 (72)発明者 紙谷 博之 埼玉県和光市中央1丁目4番1号 株式会 社本田技術研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuya Tamura 1-4-1 Chuo, Wako-shi, Saitama Inside the Honda R & D Co., Ltd. No. Stock Company Honda Technical Research Institute

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 車両が走行する道路の道路データ(N)
を含む地図を出力する地図情報出力手段(2)と、 地図上における自車位置(P0 )を検出する自車位置検
出手段(1)と、 車速(V0 )を検出する車速検出手段(6)と、 検出した車速(V0 )に基づいて地図上の通過可能エリ
ア(A)を演算する通過可能エリア演算手段(M3)
と、 自車位置(P0 )よりも前方の道路データ(N)と前記
通過可能エリア(A)とを比較し、道路データ(N)が
通過可能エリア(A)内に含まれるときに車両が通過可
能であることを判定する通過可否判定手段(M4)と、
を備えたことを特徴とする、車両の通過可否判定装置。
1. Road data (N) of a road on which a vehicle travels
A map information output means (2) for outputting a map including the following: a vehicle position detection means (1) for detecting a vehicle position (P 0 ) on the map; and a vehicle speed detection means (for detecting a vehicle speed (V 0 ). 6) and the passable area calculating means (M3) for calculating the passable area (A) on the map based on the detected vehicle speed (V 0 ).
When the road data (N) is included in the passable area (A), the road data (N) ahead of the own vehicle position (P 0 ) is compared with the passable area (A). Passability determination means (M4) for determining that the
A vehicle passability determination device, comprising:
【請求項2】 車速(V0 )に基づいて車両の最小旋回
可能半径(R)を演算する最小旋回可能半径演算手段
(M1)を備え、この最小旋回可能半径(R)に基づい
て通過可能エリア(A)を演算することを特徴とする、
請求項1記載の車両の通過可否判定装置。
2. A minimum turning radius calculation means (M1) for calculating the minimum turning radius (R) of the vehicle based on the vehicle speed (V 0 ) is provided, and passing is possible based on this minimum turning radius (R). Characterized by calculating the area (A),
The vehicle passability determination device according to claim 1.
【請求項3】 車両の運転状態及び/又は車両の走行環
境に基づいて前記通過可能エリア(A)を演算すること
を特徴とする、請求項1記載の車両の通過可否判定装
置。
3. The vehicle pass / fail determination device according to claim 1, wherein the passable area (A) is calculated based on a driving state of the vehicle and / or a traveling environment of the vehicle.
【請求項4】 車速(V0 )に基づいて自車位置
(P0 )よりも前方の仮自車位置(P1 )を演算する仮
自車位置演算手段(M2)を備え、この仮自車位置(P
1 )を基準として通過可能エリア(A)を演算すること
を特徴とする、請求項1記載の車両の通過可否判定装
置。
4. A temporary vehicle position calculating means (M2) for calculating a temporary vehicle position (P 1 ) ahead of the vehicle position (P 0 ) based on the vehicle speed (V 0 ) is provided. Car position (P
2. The vehicle passability determination device according to claim 1, wherein the passable area (A) is calculated based on 1 ).
【請求項5】 車両が走行する道路の道路データ(N)
を含む地図を出力する地図情報出力手段(2)と、 地図上における自車位置(P0 )を検出する自車位置検
出手段(1)と、 自車位置(P0 )よりも前方の道路データ(N)に基づ
いて、その道路を通過するために必要な車両の最大旋回
半径(R′)を演算する最大旋回半径演算手段(M5)
と、最大旋回半径(R′)に基づいて通過可能車速(V
MAX )を演算する通過可能車速演算手段(M6)と、を
備えたことを特徴とする、車両の通過可能車速設定装
置。
5. Road data (N) of a road on which a vehicle travels
A map information output means (2) for outputting a map including a vehicle, a vehicle position detection means (1) for detecting a vehicle position (P 0 ) on the map, and a road ahead of the vehicle position (P 0 ). Maximum turning radius calculation means (M5) for calculating the maximum turning radius (R ') of the vehicle required to pass the road based on the data (N).
Based on the maximum turning radius (R '), the vehicle speed (V
A vehicle-passable vehicle speed setting device, comprising: a vehicle-passable vehicle speed calculating means (M6) for calculating MAX ).
【請求項6】 車速(V0 )を検出する車速検出手段
(6)と、検出した車速(V0 )と前記通過可能車速
(VMAX )とを比較する比較手段(M7)とを備え、車
速(V0 )が通過可能車速(VMAX )を越えたときに警
告及び/又は車速制御を行うことを特徴とする、請求項
5記載の車両の通過可能車速設定装置。
With 6. vehicle speed and the vehicle speed detecting means for detecting (V 0) (6), the passable vehicle speed and the detected vehicle speed (V 0) (V MAX) and comparing means for comparing the (M7), 6. The vehicle passable vehicle speed setting device according to claim 5, wherein warning and / or vehicle speed control is performed when the vehicle speed (V 0 ) exceeds the passable vehicle speed (V MAX ).
JP6817093A 1993-03-26 1993-03-26 Vehicle passing speed setting device Expired - Fee Related JP3366043B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6817093A JP3366043B2 (en) 1993-03-26 1993-03-26 Vehicle passing speed setting device
DE4408745A DE4408745C2 (en) 1993-03-26 1994-03-15 Driving control device for vehicles
US08/213,682 US5539397A (en) 1993-03-26 1994-03-16 Driving control system for vehicle
GB9406025A GB2276452B (en) 1993-03-26 1994-03-25 Driving control system for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6817093A JP3366043B2 (en) 1993-03-26 1993-03-26 Vehicle passing speed setting device

Publications (2)

Publication Number Publication Date
JPH06281471A true JPH06281471A (en) 1994-10-07
JP3366043B2 JP3366043B2 (en) 2003-01-14

Family

ID=13366034

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3366043B2 (en)

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