JP2017190013A - 車両制御装置及び方法 - Google Patents
車両制御装置及び方法 Download PDFInfo
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- JP2017190013A JP2017190013A JP2016079590A JP2016079590A JP2017190013A JP 2017190013 A JP2017190013 A JP 2017190013A JP 2016079590 A JP2016079590 A JP 2016079590A JP 2016079590 A JP2016079590 A JP 2016079590A JP 2017190013 A JP2017190013 A JP 2017190013A
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- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
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- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
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Abstract
Description
本実施形態では、ハンドルを介して車両を操縦するドライバに与えるハンドルトルク(操舵反力)を制動力によって制御する場合について説明する。
(数1)
MLateralL = −FLateralL・ξ
(数2)
MLongL = FLongL・LLong
(数3)
ML = MLateralL+MLongL
(数4)
HL = ML/RS
(数5)
MLateralR = −FLateralR・ξ
(数6)
MLongR = −FLongR・LLong
(数7)
MR = MLateralR+MLongR
(数8)
HR = MR/RS
(数9)
H = HL+HR
= ML/RS + MR/RS
= (MLateralL+MLongL+MLateralR+MLongR)/RS
= ((FLongL−FLongR)・LLong−(FLateralL+FLateralR)・ξ)/RS
(数10)
FLateralL+FLateralR =WF/g・Gy
=WF・V2・α/(l・RS・g)
(数11)
FLongL−FLongR = AH・|FLateralL+FLateralR|・PA
(数12)
FLongL−FLongR = −FLongMAX−0
(数13)
HMAX = | (−FLongMAX・LLong−(FLateralL+FLateralR)・ξ)/RS |
本実施形態では、ドライバに与えるハンドルトルク(操舵反力)を制動力と駆動力によって制御する場合について説明する。上記実施形態1との差異は、操舵輪(ここでは、左前輪11,右前輪12)の制動力だけでなく駆動力も左右独立して制御可能な車両におけるハンドルトルク制御という点であり、その他の構成は上記実施形態1とほぼ同じである。したがって、上記実施形態1と同じ構成には同様の符号を付してその詳細な説明を省略し、以下では、前記差異点についてのみ詳細に説明する。
本実施形態では、ドライバによるハンドル操作を要しない自動操舵機能を有する車両において、操舵力発生装置の操舵力を制駆動力によって制御する場合について説明する。
(数14)
FLongL−FLongR = (FLateralL+FLateralR)・PF
上記実施形態1〜実施形態3では、ハンドルトルク(操舵反力)もしくは操舵力に関わる操舵輪(左前輪11,右前輪12)の制駆動力にのみ着目した。しかし、操舵輪の制駆動力に左右差をつけると、車両に対するヨーモーメントが必然的に発生する。
(数15)
WF:W−WF
(数16)
FLongL:FLongR
(数17)
FLongL:FLongR
:((W−WF)・(FLongL+FLongR)−WF・(FLongL−FLongR))/2WF
:FLongL−FLongR + ((W−WF)・(FLongL+FLongR)−WF・(FLongL−FLongR))/2WF
その他、後輪13,14の制駆動力以外の方法でヨーモーメントの過不足分(例えば旋回に要するヨーモーメントに対する過不足分であって、本実施形態の制駆動力左右配分制御を含まないGVCのみの場合のヨーモーメントに対する過不足分)を補償する方法について説明する。
以下では、操舵輪11,12の制駆動力によるハンドルトルク制御の付加機能として、車線逸脱防止装置に応用する場合について概説する。
上記実施形態1〜実施形態3では、操舵輪(左前輪11,右前輪12)の制駆動力の左右差を与えることについて説明し、上記実施形態4では、その場合でも車両の平面運動に実質的な影響を及ぼさない方法について説明した。しかし、操舵輪に対する制駆動力は、車両の平面運動だけでなく上下方向の運動にも影響を及ぼす。
11 左前輪
12 右前輪
13 左後輪
14 右後輪
15 車両運動統合制御装置(車両制御装置)
16 ハンドル
17 ステアリングコラム軸
18 ステアリングラック
19 駆動装置
20 制動制御装置
21 左前輪制動装置
22 右前輪制動装置
23 左後輪制動装置
24 右後輪制動装置
25 減速機
26 ドライブシャフト
27 電動パワーステアリング装置
28 ステアリングタイロッド
29 ステアリングナックル
30 ステアリングギヤ比可変装置
31 左前輪車輪速センサ
32 右前輪車輪速センサ
33 左後輪車輪速センサ
34 右後輪車輪速センサ
Claims (12)
- 制動力もしくは駆動力をそれぞれ制御可能な左右一対の操舵輪と、該操舵輪に対して操舵力を発生させて前記操舵輪の操舵角を制御する操舵力発生装置とを備える車両を制御する車両制御装置であって、
前記操舵輪に作用する横力に基づいて、前記制動力もしくは駆動力を前記操舵輪ごとに制御することによって、前記操舵力発生装置の操舵力または操舵反力を制御する、車両制御装置。 - 前記横力は、前記操舵輪の操舵角と前記車両の車速とに基づいて演算される、請求項1に記載の車両制御装置。
- 前記横力は、前記車両の横加速度に基づいて演算される、請求項1に記載の車両制御装置。
- 前記横力と予め決められた前記操舵力発生装置の操舵力または操舵反力の目標値とに基づいて、前記制動力もしくは駆動力を制御する、請求項1に記載の車両制御装置。
- 前記横力が大きいほど、前記左右一対の操舵輪の制動力もしくは駆動力の左右差が大きくなるように、前記制動力もしくは駆動力を制御する、請求項1に記載の車両制御装置。
- 前記車両は、前記左右一対の操舵輪とは別に設けられた他の車輪を備え、
前記操舵輪の制動力もしくは駆動力を制御することによって発生したヨーモーメントの過不足分を補償するように、前記他の車輪の制動力もしくは駆動力を制御する、請求項1に記載の車両制御装置。 - 前記車両は、前記左右一対の操舵輪とは別に設けられた他の車輪を備え、
前記操舵輪の制動力もしくは駆動力を制御することによって発生したヨーモーメントの過不足分を補償するように、前記他の車輪の操舵角を制御する、請求項1に記載の車両制御装置。 - 前記車両は、前記操舵力発生装置を構成するハンドルのハンドル角に対する前記左右一対の操舵輪の操舵角の比率であるステアリングギヤ比を可変制御可能な機構を備え、
前記操舵輪の制動力もしくは駆動力を制御することによって発生したヨーモーメントの過不足分を補償するように、前記ステアリングギヤ比を制御して前記操舵輪の操舵角を制御する、請求項1に記載の車両制御装置。 - 前記車両は、前記左右一対の操舵輪を左右独立して懸架するサスペンションを備え、
前記操舵輪の制動力もしくは駆動力を制御することによって発生したロールモーメントの変化を抑えるように、前記サスペンションを制御する、請求項1に記載の車両制御装置。 - 前記操舵輪の操舵角加速度に基づいて、前記制動力もしくは駆動力を制御する、請求項1に記載の車両制御装置。
- 前記操舵輪のスクラブ半径が負である車両の旋回過程において、前記左右一対の操舵輪の旋回外輪から旋回内輪に制動力を多く配分するように前記制動力を制御する、請求項1に記載の車両制御装置。
- 制動力もしくは駆動力をそれぞれ制御可能な左右一対の操舵輪と、該操舵輪に対して操舵力を発生させて前記操舵輪の操舵角を制御する操舵力発生装置とを備える車両を制御する車両制御方法であって、
前記操舵輪に作用する横力に基づいて、前記制動力もしくは駆動力を前記操舵輪ごとに制御することによって、前記操舵力発生装置の操舵力または操舵反力を制御する、車両制御方法。
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| EP17782209.5A EP3444157B1 (en) | 2016-04-12 | 2017-03-24 | Vehicle control device and method |
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| EP3444157A4 (en) | 2019-10-23 |
| EP3444157A1 (en) | 2019-02-20 |
| JP6604894B2 (ja) | 2019-11-13 |
| EP3444157B1 (en) | 2023-10-25 |
| US20190054916A1 (en) | 2019-02-21 |
| WO2017179391A1 (ja) | 2017-10-19 |
| US10843683B2 (en) | 2020-11-24 |
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| CN109070873A (zh) | 2018-12-21 |
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