JP6943223B2 - 産業車両のブレーキシステム - Google Patents
産業車両のブレーキシステム Download PDFInfo
- Publication number
- JP6943223B2 JP6943223B2 JP2018109638A JP2018109638A JP6943223B2 JP 6943223 B2 JP6943223 B2 JP 6943223B2 JP 2018109638 A JP2018109638 A JP 2018109638A JP 2018109638 A JP2018109638 A JP 2018109638A JP 6943223 B2 JP6943223 B2 JP 6943223B2
- Authority
- JP
- Japan
- Prior art keywords
- engine
- rotation speed
- hydraulic oil
- brake
- accumulator
- 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.)
- Active
Links
- 239000003921 oil Substances 0.000 claims description 124
- 239000010720 hydraulic oil Substances 0.000 claims description 116
- 238000001514 detection method Methods 0.000 claims description 59
- 238000001816 cooling Methods 0.000 claims description 16
- 230000003247 decreasing effect Effects 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 25
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
Images
Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/853—Features relating to cooling for disc brakes with closed cooling system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
- B60T13/141—Systems with distributor valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
- B60T13/148—Arrangements for pressure supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
- B60W10/184—Conjoint control of vehicle sub-units of different type or different function including control of braking systems with wheel brakes
- B60W10/188—Conjoint control of vehicle sub-units of different type or different function including control of braking systems with wheel brakes hydraulic brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- 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
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07509—Braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07595—Cooling arrangements for device or operator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2260/00—Interaction of vehicle brake system with other systems
- B60T2260/09—Complex systems; Conjoint control of two or more vehicle active control systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/88—Pressure measurement in brake systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/12—Trucks; Load vehicles
- B60W2300/121—Fork lift trucks, Clarks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/18—Braking system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/18—Braking system
- B60W2510/182—Brake pressure, e.g. of fluid or between pad and disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/18—Braking system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/18—Braking system
- B60W2710/182—Brake pressure, e.g. of fluid or between pad and disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/15—Fork lift trucks, Industrial trucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/18—Propelling the vehicle
- B60Y2300/18008—Propelling the vehicle related to particular drive situations
- B60Y2300/18108—Braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07504—Accessories, e.g. for towing, charging, locking
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D2065/782—Features relating to cooling the brake-actuating fluid being used as a coolant
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D2065/783—Features relating to cooling cooling control or adjustment
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
- F16D2065/787—Pumps
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Automation & Control Theory (AREA)
- Regulating Braking Force (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Description
Claims (6)
- エンジン及び作業装置を具備した産業車両のブレーキシステムにおいて、
ブレーキ操作部と、
作動油により駆動されるブレーキユニットと、
前記エンジンにより駆動され、作動油を吐出する油圧ポンプと、
前記油圧ポンプから吐出される作動油を蓄圧するアキュムレータと、
前記ブレーキ操作部の操作に応じて前記アキュムレータから前記ブレーキユニットに供給される作動油を制御するブレーキバルブと、
前記油圧ポンプから吐出される作動油を冷却する作動油クーラと、
前記作動油クーラにより冷却された作動油を前記ブレーキユニットに供給することにより、前記ブレーキユニットを冷却する冷却用流路と、
前記油圧ポンプから前記アキュムレータへの作動油の供給を許容する第1油路と、前記油圧ポンプから前記作動油クーラへの作動油の供給を許容する第2油路とを切り換える電磁切換弁と、
前記アキュムレータの圧力を検出する圧力検出部と、
前記エンジンの回転数を検出する回転数検出部と、
前記作業装置の動作を検知する検知部と、
前記圧力検出部により検出された前記アキュムレータの圧力が設定圧以下であると共に、前記回転数検出部により検出された前記エンジンの回転数が設定回転数以下であるときに、前記検知部により前記作業装置の動作が検知されると、前記作業装置の動作により低下した前記エンジンの回転数が上昇したタイミングで、前記電磁切換弁を前記第2油路から前記第1油路に切り換えるように制御する制御部とを備える産業車両のブレーキシステム。 - 前記設定回転数は、アイドル回転数であり、
前記制御部は、前記作業装置の動作により低下した前記エンジンの回転数が前記アイドル回転数以上まで上昇したタイミングで、前記電磁切換弁を前記第2油路から前記第1油路に切り換えるように制御する請求項1記載の産業車両のブレーキシステム。 - 前記産業車両は、前記作業装置を動作させるための作業操作部を具備し、
前記検知部は、前記作業操作部の操作状態を検出することにより、前記作業装置の動作を検知する請求項1または2記載の産業車両のブレーキシステム。 - エンジン及び作業装置を具備した産業車両のブレーキシステムにおいて、
ブレーキ操作部と、
作動油により駆動されるブレーキユニットと、
前記エンジンにより駆動され、作動油を吐出する油圧ポンプと、
前記油圧ポンプから吐出される作動油を蓄圧するアキュムレータと、
前記ブレーキ操作部の操作に応じて前記アキュムレータから前記ブレーキユニットに供給される作動油を制御するブレーキバルブと、
前記油圧ポンプから吐出される作動油を冷却する作動油クーラと、
前記作動油クーラにより冷却された作動油を前記ブレーキユニットに供給することにより、前記ブレーキユニットを冷却する冷却用流路と、
前記油圧ポンプから前記アキュムレータへの作動油の供給を許容する第1油路と、前記油圧ポンプから前記作動油クーラへの作動油の供給を許容する第2油路とを切り換える電磁切換弁と、
前記アキュムレータの圧力を検出する圧力検出部と、
前記エンジンの回転数を検出する回転数検出部と、
前記作業装置の動作を検知する検知部と、
前記圧力検出部により検出された前記アキュムレータの圧力が設定圧以下であると共に、前記回転数検出部により検出された前記エンジンの回転数が設定回転数以下であるときに、前記検知部により前記作業装置の動作が検知されると、前記エンジンの回転数を上昇させるように前記エンジンを制御すると共に、前記電磁切換弁を前記第2油路から前記第1油路に切り換えるように制御する制御部とを備える産業車両のブレーキシステム。 - 前記産業車両は、前記作業装置を動作させるための作業操作部を具備し、
前記検知部は、前記作業操作部の操作状態を検出することにより、前記作業装置の動作を検知し、
前記制御部は、前記検知部により前記作業装置の動作が検知されると、前記作業操作部の操作量に基づいて前記エンジンの回転数を上昇させるような回転数指令値を決定し、前記回転数指令値に応じて前記エンジンを制御する請求項4記載の産業車両のブレーキシステム。 - 前記制御部は、前記検知部により前記作業装置の動作が検知されると、前記エンジンの回転数を一時的に上昇させるように前記エンジンを制御する請求項4または5記載の産業車両のブレーキシステム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018109638A JP6943223B2 (ja) | 2018-06-07 | 2018-06-07 | 産業車両のブレーキシステム |
US16/433,167 US10948039B2 (en) | 2018-06-07 | 2019-06-06 | Braking system of industrial vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018109638A JP6943223B2 (ja) | 2018-06-07 | 2018-06-07 | 産業車両のブレーキシステム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019209911A JP2019209911A (ja) | 2019-12-12 |
JP6943223B2 true JP6943223B2 (ja) | 2021-09-29 |
Family
ID=68764765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018109638A Active JP6943223B2 (ja) | 2018-06-07 | 2018-06-07 | 産業車両のブレーキシステム |
Country Status (2)
Country | Link |
---|---|
US (1) | US10948039B2 (ja) |
JP (1) | JP6943223B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6939710B2 (ja) * | 2018-06-05 | 2021-09-22 | 株式会社豊田自動織機 | 産業車両のブレーキシステム |
JP7188349B2 (ja) * | 2019-10-04 | 2022-12-13 | 株式会社豊田自動織機 | 産業車両の油圧システム |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2543421Y2 (ja) * | 1993-04-02 | 1997-08-06 | ワグナー マイニング アンド コンストラクション イクイップメント カンパニー | 車輌ブレーキシステム |
JP4064016B2 (ja) * | 1999-09-13 | 2008-03-19 | 本田技研工業株式会社 | 内燃機関の始動制御装置 |
JP4142844B2 (ja) * | 2000-09-18 | 2008-09-03 | 株式会社小松製作所 | 油圧システム |
JP2006264417A (ja) | 2005-03-22 | 2006-10-05 | Komatsu Forklift Co Ltd | 産業車両の油圧式ブレーキ装置 |
JP4661476B2 (ja) * | 2005-09-14 | 2011-03-30 | トヨタ自動車株式会社 | 車両用制動制御装置および車両用制動制御方法 |
JP4201011B2 (ja) * | 2006-03-27 | 2008-12-24 | トヨタ自動車株式会社 | 蓄熱装置 |
US8216112B2 (en) * | 2009-08-13 | 2012-07-10 | Ford Global Technologies, Llc | Methods and systems for assisted direct start control |
US8844278B2 (en) * | 2009-12-23 | 2014-09-30 | Caterpillar Inc. | System and method for controlling an electro-hydraulic charging system |
JP6496633B2 (ja) * | 2015-08-04 | 2019-04-03 | 株式会社豊田自動織機 | 産業車両 |
JP6426579B2 (ja) * | 2015-09-30 | 2018-11-21 | 株式会社アドヴィックス | 車両用制動装置 |
JP6458703B2 (ja) * | 2015-10-13 | 2019-01-30 | 株式会社豊田自動織機 | 産業車両 |
-
2018
- 2018-06-07 JP JP2018109638A patent/JP6943223B2/ja active Active
-
2019
- 2019-06-06 US US16/433,167 patent/US10948039B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20190376571A1 (en) | 2019-12-12 |
US10948039B2 (en) | 2021-03-16 |
JP2019209911A (ja) | 2019-12-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6269170B2 (ja) | 荷役車両の油圧駆動装置 | |
US8701818B2 (en) | Work vehicle and control method for work vehicle | |
JP7188349B2 (ja) | 産業車両の油圧システム | |
JP5838996B2 (ja) | 産業車両 | |
JP4088590B2 (ja) | 車両用の油圧システム、同油圧システム及び補助ユニットを備えた車両 | |
JP6943223B2 (ja) | 産業車両のブレーキシステム | |
JP6333713B2 (ja) | 油圧駆動システム | |
US9708167B2 (en) | Industrial vehicle | |
KR20110069372A (ko) | 건설기계의 유압시스템 | |
US11293319B2 (en) | System for regenerating DPF during operation of engine-powered forklift and method therefor | |
CA2961180C (en) | Current controller | |
JP6455405B2 (ja) | 荷役車両の油圧駆動装置 | |
JP6179568B2 (ja) | 荷役車両の油圧駆動装置 | |
JP6939710B2 (ja) | 産業車両のブレーキシステム | |
EP3178778B1 (en) | Hydraulic system for energy regeneration and industrial truck with said hydraulic system | |
WO2015190307A1 (ja) | 荷役車両の油圧駆動装置 | |
JP7183978B2 (ja) | 車両のブレーキシステム | |
JP6959528B2 (ja) | 産業車両の油圧駆動装置 | |
JP2018012576A (ja) | 産業車両 | |
JP6488990B2 (ja) | 荷役車両の油圧駆動装置 | |
JP2009067516A (ja) | 車両搭載用クレーンの圧油供給量制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200904 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20210726 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210810 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210823 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 6943223 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |