JP2021528300A - 分散型アクティブサスペンションシステム用のアキュムレータ - Google Patents
分散型アクティブサスペンションシステム用のアキュムレータ Download PDFInfo
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- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/30—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/27—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
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- B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
- B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
- B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
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- B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
- B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
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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
- B60G17/0165—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 to an external condition, e.g. rough road surface, side wind
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—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
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
- B60G17/08—Characteristics of fluid dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/061—Mono-tubular units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/064—Units characterised by the location or shape of the expansion chamber
- F16F9/065—Expansion chamber provided on the upper or lower end of a damper, separately there from or laterally on the damper
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16F9/08—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall
- F16F9/082—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid where gas is in a chamber with a flexible wall characterised by the hydropneumatic accumulator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60G2202/40—Type of actuator
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- B60G2202/416—Fluid actuator using a pump, e.g. in the line connecting the lower chamber to the upper chamber of the actuator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/62—Adjustable continuously, e.g. during driving
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
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- F16F2228/001—Specific functional characteristics in numerical form or in the form of equations
- F16F2228/004—Force or pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
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- Vehicle Body Suspensions (AREA)
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Abstract
【選択図】図3
Description
油圧システムは、例えば、車両内、特に、車両のサスペンションシステム内を含む様々な用途で使用されている。特定の用途は、所与の油圧システムが物理的に収まらなければならない限定された空間だけを与えることができる。したがって、実装サイズ及び空間上の制約は、例えば、自動車用途などの特定の用途への油圧システムの組み込みの大きな障害であり得る。この障害は、複数のアキュムレータを使用する油圧システムに対して特に顕著であり得るが、その理由は、油圧システム内の各アキュムレータがある程度の空間を占有し、油圧システムの総空間の一部をなすからである。複数のアキュムレータを油圧システムに実装する際の適応性の向上、及び/又は複数のアキュムレータを使用する油圧システムに対する実装サイズの縮小を可能にする埋め込み式アキュムレータアセンブリの実施形態が本明細書に開示される。
Claims (25)
- 内部空間を少なくとも部分的に規定する油圧シリンダと、
前記油圧シリンダにスライド式に挿入され、それにより、前記内部空間を圧縮チャンバと拡張チャンバとに分割するピストンと、
前記ピストンに取り付けられ、前記油圧シリンダから外に延びるピストンロッドと、
前記圧縮チャンバと流体連通した第1ポートと、前記拡張チャンバと流体連通した第2ポートとを含む油圧ポンプと、
前記圧縮チャンバと流体を交換するように構成された圧縮アキュムレータと、
前記拡張チャンバと流体を交換するように構成された拡張アキュムレータと、
を含むサスペンションシステム構成要素であって、
前記油圧ポンプが少なくとも1,000psiの第1設定差圧を発生させたときに、12Hzの周波数と5mmのピーク間振幅とを有する外部入力に呼応する前記サスペンションシステム構成要素の観測剛性は80N/mmを超えない、サスペンションシステム構成要素。 - 前記第1設定差圧は1,000psiの値を有する、請求項1に記載のサスペンションシステム構成要素。
- 前記観測剛性は、5M/mm、10N/mm、又は25N/mm以上である、請求項1又は2に記載のサスペンションシステム構成要素。
- 前記観測剛性は、80N/mm、70N/mm、又は50N/mm以下である、請求項1〜3のいずれか一項に記載のサスペンションシステム構成要素。
- 請求項1〜4のいずれか一項に記載のサスペンションシステム構成要素を含むサスペンションシステムを含む車両。
- 請求項1〜4のいずれか一項に記載の複数のサスペンションシステム構成要素を含むサスペンションシステムを含む車両。
- ばね上質量及びばね下質量をさらに含み、前記複数のサスペンションシステム構成要素の各サスペンションシステム構成要素は、前記車両のばね下質量と前記車両のばね上質量との間に配置される、請求項6に記載の車両。
- 前記複数のサスペンションシステム構成要素の各サスペンションシステム構成要素は流体的に分離される、請求項6又は7に記載の車両。
- 車両用のサスペンションシステム構成要素であって、
第1流体量を収容する油圧シリンダと、
前記油圧シリンダにスライド可能に受け入れられ、それにより、前記油圧シリンダの少なくとも一部分を拡張チャンバと圧縮チャンバとに分割するピストンと、
前記ピストンに取り付けられたピストンロッドと、
第2流体量を収容する圧縮アキュムレータであって、前記圧縮チャンバと直接的に流体連通した圧縮アキュムレータと、
第3流体量を収容する拡張アキュムレータであって、前記拡張チャンバと直接的に流体連通した拡張アキュムレータと、
前記圧縮チャンバ及び前記拡張チャンバの両方と流体連通したポンプと、を含み、
前記第2量は、前記第1量よりも多く、前記第3量は、前記第1量よりも多い、サスペンションシステム構成要素。 - 前記第2量は、3スリーよりも大きい第1倍率だけ前記第1量よりも多い、請求項9に記載のサスペンションシステム構成要素。
- 前記第1量は、3よりも大きい第2倍率だけ前記第2量よりも多い、請求項10に記載のサスペンションシステム構成要素。
- 前記第1倍率及び第2倍率はそれぞれ10未満である、請求項11に記載のサスペンションシステム構成要素。
- 請求項9〜12のいずれか一項に記載の複数のサスペンションシステム構成要素を含む、車両用サスペンションシステム。
- 請求項13に記載のサスペンションシステムを含む車両。
- 油圧システム用の埋め込み式アキュムレータアセンブリであって、
第1内部空間を少なくとも部分的に規定する第1アキュムレータハウジングと、
前記第1内部空間を第1気体充填チャンバと第1油圧流体チャンバとに分割する第1ピストンと、
を含む第1アキュムレータと、
第2内部空間を少なくとも部分的に規定する第2アキュムレータハウジングと、
前記第2内部空間を第2気体充填チャンバと第2油圧流体チャンバとに分割する第2ピストンと、
を含む第2アキュムレータと、を含み、
前記第2アキュムレータの少なくとも一部分は、前記第1内部空間内に配置される、埋め込み式アキュムレータアセンブリ。 - 前記第1アキュムレータは、流体が前記第1油圧流体チャンバに入るのを可能にする1つ又は複数のポートをさらに含み、前記第2アキュムレータは、流体が前記第2油圧流体チャンバに入るのを可能にする1つ又は複数のポートをさらに含む、請求項15に記載の埋め込み式アキュムレータアセンブリ。
- 前記第2アキュムレータは、前記第1内部空間内に完全に配置される、請求項15又は16に記載の埋め込み式アキュムレータアセンブリ。
- 前記第2アキュムレータは、前記第1油圧流体チャンバ内に少なくとも部分的に配置される、請求項15〜17のいずれか一項に記載の埋め込み式アキュムレータアセンブリ。
- 前記第2アキュムレータの全体は、前記第1油圧流体チャンバ内に配置される、請求項18に記載の埋め込み式アキュムレータアセンブリ。
- 前記第1アキュムレータハウジングの壁の一部分は、前記第2アキュムレータハウジングの壁の一部分に取り付けられる、請求項15〜19のいずれか一項に記載の埋め込み式アキュムレータアセンブリ。
- 前記第1アキュムレータハウジング及び前記第2アキュムレータハウジングは、壁の少なくとも一部分を共有する、請求項15〜20のいずれか一項に記載の埋め込み式アキュムレータ。
- 前記第1アキュムレータハウジングの外面と前記第2アキュムレータハウジングの内面との間のギャップをさらに含む、請求項15〜21のいずれか一項に記載の埋め込み式アキュムレータ。
- 前記ギャップは、前記第1油圧流体チャンバへの流れを制限する流体制限要素として機能する、請求項22に記載の埋め込み式アキュムレータ。
- 前記ギャップは、前記第1油圧流体チャンバからの流れを制限する流体制限要素として機能する、請求項22に記載の埋め込み式アキュムレータ。
- 前記ギャップは、流体慣性抵抗要素として機能する、請求項22に記載の埋め込み式アキュムレータ。
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US62/740,823 | 2018-10-03 | ||
PCT/US2019/037218 WO2019241650A1 (en) | 2018-06-14 | 2019-06-14 | Accumulators for a distributed active suspension system |
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