WO2012091067A1 - ハイブリッド式作業機の冷却システム - Google Patents
ハイブリッド式作業機の冷却システム Download PDFInfo
- Publication number
- WO2012091067A1 WO2012091067A1 PCT/JP2011/080338 JP2011080338W WO2012091067A1 WO 2012091067 A1 WO2012091067 A1 WO 2012091067A1 JP 2011080338 W JP2011080338 W JP 2011080338W WO 2012091067 A1 WO2012091067 A1 WO 2012091067A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling system
- motor
- work machine
- pcu
- hybrid
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 65
- 239000002826 coolant Substances 0.000 claims abstract description 71
- 238000011084 recovery Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 38
- 238000001514 detection method Methods 0.000 claims description 21
- 230000020169 heat generation Effects 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 abstract description 52
- 230000007423 decrease Effects 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
- B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
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- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
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- E—FIXED CONSTRUCTIONS
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
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- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
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- E—FIXED CONSTRUCTIONS
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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- E—FIXED CONSTRUCTIONS
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
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- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- Y02T10/64—Electric machine technologies in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Definitions
- the pressure oil from the pilot pump 66 is supplied to the cylinder chamber of the turning parking brake 68 in conjunction with the operation of the gate lock lever 61 and the operation lever 62. That is, when the gate lock lever 61 is operated to the raised position (lock position) or the operation lever 62 is not operated, the turning parking brake 68 stops the driving of the turning hydraulic motor 16 and the turning electric motor 24 ( When the gate lock lever 61 is operated to the lowered position (lock release position) and the operation lever 62 is operated, the turning parking brake 68 releases the brake.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Operation Control Of Excavators (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
以下、本発明の第1実施形態を図面を用いて説明する。
図1は、本実施形態の冷却システムを搭載する油圧ショベルの外観を示す図である。油圧ショベルは下部走行体100と上部旋回体101とフロント装置102を備えている。下部走行体100は左右のクローラ式走行装置103a,103bを有し、左右の走行モータ104a,104bにより駆動される。上部旋回体101は旋回モータ105により下部走行体100上に旋回可能に搭載され、フロント装置102は上部旋回体101の前部に俯仰可能に取り付けられている。上部旋回体101にはエンジンルーム106、運転室107が備えられ、エンジンルーム106にはエンジン11が配置されている。フロント装置102はブーム111、アーム112、バケット113を有する多関節構造であり、ブーム111はブームシリンダ114の伸縮により、アーム112はアームシリンダ115の伸縮により、バケット113はバケットシリンダ116の伸縮により、各々回動する。
図4はコントローラ50の詳細を示す図である。本実施形態の特徴的な入出力を記載し、一般的な入出力を省略する。コントローラ50は、温度検出センサ51~54の検出信号、ゲートロックレバー61(後述)、操作レバー62(後述)の操作信号を入力し、所定の演算をし、PCU25、ポンプ32、モニタ63に指令信号を出力する。
本実施形態の動作について説明する。
本実施形態の効果について説明する。
~構成~
本実施形態において、ハイブリッド式油圧ショベルの駆動システムおよび冷却システムは、第1実施形態と同じであり(図2・3参照)、詳細を省略する。
本実施形態において、コントローラ50は、ゲートロックレバー61の上げ位置(ロック位置)への操作信号を入力すると、油圧ショベルが不操作状態であると判定する。また、操作レバー62からの操作信号を所定時間継続して入力しないと、油圧ショベルが不操作状態であると判定する(図4参照)。すなわち、ゲートロックレバー61と操作レバー62とコントローラ50は、不操作状態検出手段を構成する。
本実施形態が特に有効であるのは、油圧ショベルの暖機運転時などである。
~構成~
便宜上説明を省略しているが、第1および第2実施形態においても、油圧ショベルは旋回パーキングブレーキを備えている。図7に、旋回パーキングブレーキ68を追記する。
コントローラ50は、ゲートロックレバー61、操作レバー62の操作信号を入力し、旋回パーキングブレーキ68の作動・不作動を検出する(図4参照)。
本実施形態が特に有効であるのは、第2実施形態と同様に、油圧ショベルの暖機運転時などである。
本発明は上記実施形態に限られるものではなく、その趣旨及び技術的思想を逸脱しない範囲内において、種々の変形が可能である。本発明の本質は、PCU25がヒートモード機能25a,25b,25cを有することにある。以下、その他の実施形態を説明する。
11 エンジン
12 油圧ポンプ
13 方向制御弁ユニット
14 油圧アクチュエータ
15 被駆動部材
16 旋回油圧モータ
20 電動システム
22 第1電動機(アシストモータ)
23 蓄電装置(キャパシタ)
24 第2電動機(旋回電動モータ)
25 PCU
25a,25b,25c ヒートモード機能
30 冷却回路
31 ラジエータ
32 ポンプ
50 コントローラ
51~54 温度検出センサ
61 ゲートロックレバー
62 操作レバー
63 モニタ
64 レギュレータ
65 パイロット圧遮断弁
66 パイロットポンプ
67 回転軸
68 旋回パーキングブレーキ
80 エンジン冷却回路
81 ラジエータ
82 ポンプ
100 下部走行体
101 上部旋回体
102 フロント装置
103a,103b クローラ式走行装置
104a,104b 走行モータ
105 旋回モータ
106 エンジンルーム
107 運転室
111 ブーム
112 アーム
113 バケット
114 ブームシリンダ
115 アームシリンダ
116 バケットシリンダ
Claims (7)
- エンジン(11)と、前記エンジンにより駆動する油圧ポンプ(12)と、前記油圧ポンプからの吐出油により駆動する油圧アクチュエータ(14)と、前記エンジンにより駆動する第1電動機(22)と、前記第1電動機および第2電動機(24)による発電電力を充電する蓄電装置(23)と、前記第1電動機および前記蓄電装置の電力により駆動する前記第2電動機と、前記第1電動機および前記第2電動機の駆動および前記蓄電装置の充放電を制御するパワーコントロールユニット(PCU)(25)とを備えたハイブリッド式作業機に搭載され、
冷却媒体を冷却するラジエータ(31)と前記冷却媒体を循環するポンプ(32)とを有し、前記ラジエータによって冷却された冷却媒体を前記ポンプで循環し、その冷却媒体により前記蓄電装置と前記PCUと前記第2電動機との各電動機器を冷却するハイブリッド式作業機の冷却システムにおいて、
更に、前記冷却媒体の液温を検出する液温検出センサ(51~54)を備え、
前記PCUは、前記検出液温が第1閾値未満である低温モードである場合に、いずれかの電動機器の発熱を促すヒートモード機能(25a、25b、25c)を有する
ことを特徴とするハイブリッド式作業機の冷却システム。 - 請求項1記載のハイブリッド式作業機の冷却システムにおいて、
前記PCUは、前記液温検出センサが検出する液温に基づいて、前記蓄電装置の充放電を制御し、
前記低温モード時には、前記ヒートモード機能が作動する
ことを特徴とするハイブリッド式作業機の冷却システム。 - 請求項1記載のハイブリッド式作業機の冷却システムにおいて、
前記PCUは、前記検出液温が前記第1閾値以上である第2閾値未満である通常モードである場合に、前記蓄電装置と前記第1電動機との最適なエネルギー回収割合を設定する制御を行い、
前記ヒートモード機能は、前記低温モードである場合の前記蓄電装置のエネルギー回収割合を、前記通常モードの前記蓄電装置のエネルギー回収割合の最大値以上にする
ことを特徴とするハイブリッド式作業機の冷却システム。 - 請求項1記載のハイブリッド式作業機の冷却システムにおいて、
前記ハイブリッド式作業機は、作業機の不操作状態を検出する不操作状態検出手段(50,61,62)を備え、
前記ヒートモード機能は、前記低温モードであり、かつ、前記不操作状態検出手段が作業機の不操作状態を検出すると、前記蓄電装置と前記第1電動機との間で充放電を繰り返す制御を行う
ことを特徴とするハイブリッド式作業機の冷却システム。 - 請求項1記載のハイブリッド式作業機の冷却システムにおいて、
前記ハイブリッド式作業機は、前記第2電動機の駆動を制動する制動装置(68)を備え、
前記ヒートモード機能は、前記低温モードであり、かつ、前記制動装置が第2電動機の駆動を制止すると、前記第2電動機を駆動する力行制御を行う
ことを特徴とするハイブリッド式作業機の冷却システム。 - 請求項1記載のハイブリッド式作業機の冷却システムにおいて、
前記ヒートモード機能が作動するときは、前記ポンプの回転数を下げる
ことを特徴とするハイブリッド式作業機の冷却システム。 - 請求項1記載のハイブリッド式作業機の冷却システムにおいて、
前記ハイブリッド式作業機は、表示装置(63)を備え、
前記表示装置は、前記ヒートモード機能が作動すると、ヒートモード機能が作動している旨を表示する
ことを特徴とするハイブリッド式作業機の冷却システム。
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KR1020137007795A KR101845573B1 (ko) | 2010-12-28 | 2011-12-27 | 하이브리드식 작업기의 냉각 시스템 |
US13/818,298 US8639422B2 (en) | 2010-12-28 | 2011-12-27 | Cooling system for hybrid working machine |
CN201180047587.6A CN103140634B (zh) | 2010-12-28 | 2011-12-27 | 混合动力式作业机的冷却系统 |
EP11852371.1A EP2660395B1 (en) | 2010-12-28 | 2011-12-27 | Cooling system for hybrid work machine |
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- 2011-12-27 US US13/818,298 patent/US8639422B2/en active Active
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JP2012140771A (ja) | 2012-07-26 |
KR101845573B1 (ko) | 2018-04-04 |
CN103140634A (zh) | 2013-06-05 |
EP2660395A1 (en) | 2013-11-06 |
EP2660395A4 (en) | 2017-10-25 |
CN103140634B (zh) | 2016-01-27 |
KR20140009128A (ko) | 2014-01-22 |
US8639422B2 (en) | 2014-01-28 |
US20130275011A1 (en) | 2013-10-17 |
EP2660395B1 (en) | 2018-12-12 |
JP5527896B2 (ja) | 2014-06-25 |
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