JPH10132072A5

JPH10132072A5 -

Info

Publication number: JPH10132072A5
Application number: JP1996301273A
Authority: JP
Filing date: 1996-10-25
Publication date: 2004-10-21
Anticipated expiration: 2016-10-25

Description

【０００９】
【課題を解決するための手段】
上記の目的を達成するため、請求項１の車両制御装置では、
現在位置を検出する現在位置検出手段と、
道路データを記憶する道路データ記憶手段と、
前記道路データ記憶手段に記憶された道路データに基づき、前方のカーブを検出するカーブ検出手段と、
該カーブの所定位置を通過する以前にシフトダウンを行うシフトダウン手段と、
該カーブの特定地点を通過したかを判断する所定位置通過判断手段と、
該カーブの特定地点通過時の車速を記憶する車速記憶と、
前記所定位置通過判断手段にて所定位置通過前と判断されている間は、変速比のシフトアップを制限すると共に、所定位置通過後は、前記特定地点通過時の車速よりも所定速度高くなるまでシフトアップを制限するシフトアップ制限手段と、から成ることを技術的特徴とする。[0009]
[Means for solving the problem]
In order to achieve the above object, the vehicle control device of claim 1 comprises:
a current position detection means for detecting a current position;
road data storage means for storing road data;
a curve detection means for detecting a curve ahead based on the road data stored in the road data storage means;
a downshifting means for downshifting the vehicle before passing a predetermined position on the curve;
a predetermined position passing determination means for determining whether a specific point on the curve has been passed;
a vehicle speed memory that stores the vehicle speed when passing through a specific point on the curve;
The technical feature of the present invention is that it comprises an upshift limiting means which limits the upshift of the gear ratio while the predetermined position passage determining means determines that the predetermined position has not yet been passed, and which limits the upshift after the predetermined position has been passed until the vehicle speed becomes a predetermined speed higher than the vehicle speed when passing the specific point.

【００１０】
また、請求項２の車両制御装置では、
現在位置を検出する現在位置検出手段と、
道路データを記憶する道路データ記憶手段と、
前記道路データ記憶手段に記憶された道路データに基づき、前方のカーブを検出するカーブ検出手段と、
該カーブの所定位置を通過した後、所定距離離れたかを判断する距離判断手段と、
該カーブの所定位置を通過する以前に変速比をシフトダウンするシフトダウン手段と、
前記距離判断手段にて所定位置を通過した後、所定距離離れたと判断されるまでは、シフトアップを制限するシフトアップ制限手段と、から成ることを技術的特徴とする。[0010]
In addition, in the vehicle control device of claim 2 ,
a current position detection means for detecting a current position;
road data storage means for storing road data;
a curve detection means for detecting a curve ahead based on the road data stored in the road data storage means;
distance determination means for determining whether a predetermined distance has passed after passing a predetermined position on the curve;
a downshifting means for downshifting the gear ratio before passing a predetermined position on the curve;
The technical feature of the present invention is that it comprises an upshift limiting means for limiting upshifting after the distance determining means has passed the predetermined position and until it is determined that the predetermined distance has been traveled.

【００１３】
請求項１の車両制御装置では、現在位置検出手段が現在位置を検出し、カーブ検出手段が、道路データ記憶手段に記憶された道路データに基づき、前方のカーブを検出する。そして、シフトダウン手段がカーブの特定地点を通過する以前にシフトダウンする。そして、シフトアップ制限手段が、所定位置通過判断手段にて所定位置通過前と判断されている間は、変速比のシフトアップを制限し、所定位置通過後は、特定地点通過時の速度よりも所定速度高くなるまではシフトアップを制限する。[0013]
In the vehicle control device of claim 1 , the current position detection means detects the current position, the curve detection means detects the curve ahead based on road data stored in the road data storage means, the downshift means downshifts before passing a specific point on the curve, and the upshift limiting means limits upshifts of the gear ratio while the predetermined position passing determination means determines that the predetermined position has not been passed, and limits upshifts after passing the predetermined position until the speed becomes a predetermined speed higher than the speed at which the specific point was passed.

【００１４】
請求項１では、シフトダウン手段が、カーブに進入する際にエンジンブレーキにて適切に減速し得るように変速比をシフトダウンするが、通常の自動変速機の制御においては、一旦シフトダウンされても、車速及びスロットル開度に基づき、シフトアップが成される。これをシフトアップ制限手段が制限することで、低い変速比を維持し、大きな駆動力を車輪にかけ車両を安定させた状態でカーブを通過することができる。[0014]
In claim 1 , the downshifting means downshifts the gear ratio so that the vehicle can decelerate appropriately by engine braking when entering a curve, but in normal automatic transmission control, even if the downshift has been performed once, an upshift is performed based on the vehicle speed and throttle opening. By limiting this, the upshifting limiting means maintains a low gear ratio and applies a large driving force to the wheels, allowing the vehicle to traverse the curve in a stable state.

【００１５】
請求項２の車両制御装置では、現在位置検出手段が現在位置を検出し、カーブ検出手段が、道路データ記憶手段に記憶された道路データに基づき、前方のカーブを検出する。そして、シフトダウン手段がカーブの所定位置を通過する以前にシフトダウンする。そして、シフトアップ制限手段が、距離判断手段にて所定位置を通過してから所定距離離れたと判断された後、通常の車速でシフトアップを認める。[0015]
In a vehicle control device according to a second aspect of the present invention, the current position detection means detects the current position, the curve detection means detects an upcoming curve based on road data stored in the road data storage means, the downshift means downshifts before passing a predetermined position on the curve, and the upshift restriction means allows an upshift at a normal vehicle speed after the distance determination means determines that the predetermined distance has passed since passing the predetermined position.

【００１６】
請求項２では、シフトダウン手段が、カーブに進入する際にエンジンブレーキにて適切に減速し得るように変速比をシフトダウンするが、通常の自動変速機の制御においては、一旦シフトダウンされても、車速及びスロットル開度に基づき、シフトアップが成される。これをシフトアップ制限手段が制限することで、低い変速比を維持し、大きな駆動力を車輪にかけ車両を安定させた状態でカーブを通過することができる。また、所定位置を通過してから所定距離離れると、通常の車速でのシフトアップを認めるため、車速が余り高まらなくともカーブから離れた際には、通常の変速比制御が再開できる。[0016]
In claim 2 , the downshifting means downshifts the gear ratio so that the vehicle can decelerate appropriately by engine braking when entering a curve. However, in normal automatic transmission control, even if the downshift is performed once, an upshift is performed based on the vehicle speed and throttle opening. By limiting this, the upshifting limiting means maintains a low gear ratio , applying a large driving force to the wheels and allowing the vehicle to traverse the curve in a stable state. Furthermore, once the vehicle has passed a predetermined position and traveled a predetermined distance, an upshift at normal vehicle speed is permitted, so that normal gear ratio control can be resumed when the vehicle leaves the curve even if the vehicle speed has not increased significantly.

Claims

a current position detection means for detecting a current position;
road data storage means for storing road data;
a curve detection means for detecting a curve ahead based on the road data stored in the road data storage means;
a downshifting means for downshifting the vehicle before passing a predetermined position on the curve;
a predetermined position passing determination means for determining whether a specific point on the curve has been passed;
a vehicle speed memory that stores the vehicle speed when passing through a specific point on the curve;
a shift-up limiting means for limiting an upshift of the gear ratio while the predetermined position passage determining means determines that the predetermined position has not yet been passed, and for limiting an upshift after the predetermined position has been passed until the vehicle speed becomes a predetermined speed higher than the vehicle speed when passing the specific point.

a current position detection means for detecting a current position;
road data storage means for storing road data;
a curve detection means for detecting a curve ahead based on the road data stored in the road data storage means;
distance determination means for determining whether a predetermined distance has passed after passing a predetermined position on the curve;
a downshifting means for downshifting the gear ratio before passing a predetermined position on the curve;
and a shift-up limiting means for limiting shift-up after the distance determining means has passed a predetermined position and until the distance determining means determines that the predetermined distance has been traveled.