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1. 发明公开

US20240068494A1 CONTROLLER FOR HYDRAULIC APPARATUS 审中-公开
公开(公告)号：US20240068494A1
公开(公告)日：2024-02-29
申请号：US18259710
申请日：2021-12-30
申请人： ARTEMIS INTELLIGENT POWER LIMITED
发明人： Alexis DOLE , Matthew GREEN , John HUTCHESON , Daniel ABRAHAMS , Niall CALDWELL
IPC分类号： B66F9/22 , F15B11/16 , F15B11/17 , F15B21/08 , F15B21/14
CPC分类号： B66F9/22 , F15B11/165 , F15B11/17 , F15B21/082 , F15B21/14 , F15B2211/2656 , F15B2211/41518
摘要： The present invention provides a controller for hydraulic apparatus (100). The controller is configured to determine (310) that an energy return criteria has been met by movement of a first movement component of a first hydraulic actuator. In response thereto, the controller is further configured to select (320) at least one among a plurality of energy control strategies based on at least one operational characteristic of the hydraulic apparatus, and to control (330) the hydraulic apparatus to implement the energy control strategy during movement of the first movable component in such a way as to meet the energy return criteria. The plurality of energy control strategies comprises a first energy control strategy and a second energy control strategy. The at least one operational characteristic of the hydraulic apparatus comprises an indication of an expected energy recovery of one or more of the energy control strategies. The first energy control strategy comprises transferring energy from the first hydraulic actuator, via a hydraulic machine, to an energy consumer in torque connection with the hydraulic machine. The second energy control strategy comprises transferring energy from the first hydraulic actuator to a low-pressure reservoir of hydraulic fluid in the hydraulic circuit.

2. 发明公开

US20230312239A1 SPEED CONTROL FOR HYDRAULIC SYSTEM OF A REFUSE VEHICLE 审中-公开
公开(公告)号：US20230312239A1
公开(公告)日：2023-10-05
申请号：US18170874
申请日：2023-02-17
申请人： Oshkosh Corporation
发明人： Chris Mills , Greg Steffens , Chris Rukas , Jeremy Andringa , Colin Wheeler
IPC分类号： B65F3/02 , F15B9/03 , B65F3/14
CPC分类号： B65F3/02 , F15B9/03 , B65F3/14 , F15B2211/20515 , F15B2211/20576 , F15B2211/255 , F15B2211/2656 , F15B2211/20546
摘要： A refuse vehicle including an electric motor powered by a battery, a hydraulic pump driven by the electric motor, a hydraulic actuator powered by the hydraulic pump, and one or more processing circuits comprising one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to: determine a load of the hydraulic actuator, and control a speed of the electric motor driving the hydraulic pump to achieve the load.

3. 发明申请

US20160115974A1 HYDRAULIC DRIVE SYSTEM FOR CONSTRUCTION MACHINE 审中-公开
标题翻译：液压驱动系统
公开(公告)号：US20160115974A1
公开(公告)日：2016-04-28
申请号：US14769922
申请日：2014-04-21
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Kiwamu Takahashi , Yasutaka Tsuruga , Yoshifumi Takebayashi , Kazushige Mori , Natsuki Nakamura
IPC分类号： F15B11/17 , E02F3/42 , E02F9/22
CPC分类号： F15B11/17 , E02F3/325 , E02F3/425 , E02F9/2239 , E02F9/2267 , E02F9/2292 , E02F9/2296 , F15B2211/20576 , F15B2211/20584 , F15B2211/255 , F15B2211/2654 , F15B2211/2656 , F15B2211/30535 , F15B2211/30565 , F15B2211/31535 , F15B2211/41518 , F15B2211/465 , F15B2211/7135 , F15B2211/7142
摘要： To cope with a variety of flow rate balance required of two actuators flexibly in combined operations driving two actuators of high maximum demanded flow rates at the same time while suppressing the wasteful energy consumption caused by the throttle pressure loss in a pressure compensating valve, the arrangement is such that when the demanded flow rate of a boom cylinder 3a is lower than a prescribed flow rate, the boom cylinder 3a is driven only by hydraulic fluid delivered from a single flow type main pump 202 and when the demanded flow rate of the boom cylinder 3a is higher than the prescribed flow rate, the hydraulic fluid delivered from the single flow type main pump 202 and hydraulic fluid delivered from a first delivery port 102a of a split flow type main pump 102 are merged together and the boom cylinder 3a is driven by the merged fluids. Further, when the demanded flow rate of an arm cylinder 3b is lower than a prescribed flow rate, the arm cylinder 3b is driven only by hydraulic fluid delivered from a second delivery port 102b of the split flow type main pump 102 and when the demanded flow rate of the arm cylinder 3b is higher than the prescribed flow rate, hydraulic fluid delivered from the first delivery port 102a and hydraulic fluid delivered from the second delivery port 102b are merged together and the arm cylinder 3b is driven by the merged fluids.
摘要翻译：为了在组合操作中灵活地应对两个致动器所需的各种流量平衡，同时驱动具有高最大需求流量的两个致动器，同时抑制由压力补偿阀中的节流阀压力损失引起的浪费的能量消耗，使得当动臂缸3a的要求流量低于规定流量时，动臂缸3a仅由从单流式主泵202输送的液压流体驱动，并且当动臂缸的要求流量 3a比规定流量高，从单流式主泵202输送的液压油和从分流式主泵102的第一输送口102a输送的液压流体合流在一起，动臂缸3a由合并液体。此外，当臂缸3b的要求流量低于规定流量时，仅由分流式主泵102的第二输送口102b输送的液压流体驱动臂缸3b，当需要流量臂缸3b的速率高于规定的流量，从第一输送口102a输送的液压流体和从第二输送口102b输送的液压流体合流在一起，并且通过合流的流体驱动臂缸3b。

4. 发明申请

US20150252820A1 HYDRAULIC DRIVING APPARATUS FOR WORKING MACHINE 有权
标题翻译：液压驱动装置
公开(公告)号：US20150252820A1
公开(公告)日：2015-09-10
申请号：US14634046
申请日：2015-02-27
申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) , KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Naoki SUGANO , Takayuki IGAUE , Mitsunori HIROZAWA
IPC分类号： F15B11/10 , F15B13/042
CPC分类号： F15B11/10 , E02F9/2246 , E02F9/2296 , F02D29/04 , F15B13/042 , F15B2211/20546 , F15B2211/25 , F15B2211/2656 , F15B2211/2658 , F15B2211/6651 , F15B2211/6652
摘要： Provided is a hydraulic driving apparatus including a calculation section calculating a temporary target engine rotation speed corresponding to an engine operation amount, a calculation section calculating a temporary target pump displacement volume based on first-control and second-control target pump displacement volumes corresponding to an actuator operation amount and a pump load pressure, and a command section calculating a final target engine rotation speed and a final target pump displacement volume to output commands. The command section calculates a target pump discharge amount from the temporary target engine rotation speed and the temporary target pump displacement volume, sets the final target pump displacement volume to one larger than the temporary target pump displacement volume, and sets the final target engine rotation speed to one being lower than the temporary target engine rotation speed and allowing a pump discharge amount equivalent to the target pump discharge amount to be obtained.
摘要翻译：本发明提供一种液压驱动装置，其具备：计算部，其计算与发动机运转量对应的临时目标发动机转速;计算部，根据与第一控制对象相对应的第一控制和第二控制目标泵排量，执行器操作量和泵负载压力，以及计算最终目标发动机转速和最终目标泵排量的命令部分以输出命令。指令部根据临时目标发动机转速和暂时目标泵排量，计算出目标泵排出量，将最终目标泵排出量设定为比临时目标泵排出量大一个，并将最终目标发动机转速设定低于临时目标发动机转速，能够得到与目标泵排出量相当的泵排出量。

5. 发明授权

US08572957B2 Hydraulic system for construction equipment 失效
标题翻译：施工设备液压系统
公开(公告)号：US08572957B2
公开(公告)日：2013-11-05
申请号：US12545653
申请日：2009-08-21
申请人： Toshimichi Ikeda , Yang Koo Lee
发明人： Toshimichi Ikeda , Yang Koo Lee
IPC分类号： F15B11/17
CPC分类号： E02F9/2239 , E02F9/2282 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B2211/20523 , F15B2211/20546 , F15B2211/20576 , F15B2211/2654 , F15B2211/2656 , F15B2211/3116 , F15B2211/324
摘要： A hydraulic system for construction equipment is provided, which can increase the driving speed of a corresponding working device by making hydraulic fluid of a hydraulic pump, which is added to the hydraulic system having two hydraulic pumps in the construction equipment, join hydraulic fluid on the working device side, and can intercept the supply of hydraulic fluid from the working device side to a traveling apparatus side when the working device and the traveling apparatus are simultaneously manipulated.
摘要翻译：提供了一种用于施工设备的液压系统，其可以通过将液压泵的液压油添加到具有在施工设备中的两个液压泵的液压系统中的液压流体连接在液压油上来提高相应工作装置的驱动速度并且能够在同时操作工作装置和行进装置时截断从工作装置侧向行驶装置侧的液压油的供给。

6. 发明申请

US20100186402A1 PUMP TORQUE CONTROL SYSTEM FOR HYDRAULIC CONSTRUCTION MACHINE 有权
标题翻译：液压施工机械泵扭矩控制系统
公开(公告)号：US20100186402A1
公开(公告)日：2010-07-29
申请号：US12445605
申请日：2008-01-30
申请人： Nobuei Ariga , Kouji Ishikawa , Hideo Karasawa , Yasuo Okano , Kazunori Nakamura , Youichi Kowatari
发明人： Nobuei Ariga , Kouji Ishikawa , Hideo Karasawa , Yasuo Okano , Kazunori Nakamura , Youichi Kowatari
IPC分类号： F15B21/04
CPC分类号： F15B13/0422 , E02F9/2225 , E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F04B17/05 , F04B49/08 , F15B11/17 , F15B2211/20523 , F15B2211/20546 , F15B2211/20553 , F15B2211/26 , F15B2211/2656 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/6309 , F15B2211/633 , F15B2211/6343 , F15B2211/6652 , F15B2211/6655 , F15B2211/7053 , F15B2211/7058
摘要： A pump torque control system is capable of preventing hunting due to interference between speed sensing control and control of an engine speed of a prime mover when the temperature of a hydraulic fluid is low.A maximum absorption torque is set in a regulator 31 that controls displacement volumes of hydraulic pumps 2 and 3 based on a deviation between target and actual engine speeds of a prime mover 1. A second modification factor calculating section 45 and a control gain modifying section 49, which are included in a controller 23 that performs speed sensing control to ensure that the maximum absorption torque of the hydraulic pumps 2 and 3 is reduced, change a control gain of the speed sensing control based on a value detected by the hydraulic temperature sensor 34 to ensure that the control gain is reduced as the temperature of the hydraulic fluid is reduced.
摘要翻译：泵扭矩控制系统能够防止在液压流体的温度低时速度感测控制和原动机的发动机转速的控制之间的干扰。在基于原动机1的目标和实际发动机转速之间的偏差来控制液压泵2和3的排量的调节器31中设定最大吸收扭矩。第二修正因子计算部45和控制增益修正部49 ，其包括在执行速度感测控制以确保液压泵2和3的最大吸收扭矩减小的控制器23中，基于由液压温度传感器34检测到的值来改变速度感测控制的控制增益以确保当液压流体的温度降低时控制增益降低。

7. 发明授权

US2807140A Hydraulic transmission 失效
公开(公告)号：US2807140A
公开(公告)日：1957-09-24
申请号：US57849356
申请日：1956-04-16
申请人： OILGEAR CO
发明人： RANSOM TYLER
IPC分类号： F15B11/05
CPC分类号： F15B11/05 , F15B2211/20515 , F15B2211/20546 , F15B2211/20576 , F15B2211/255 , F15B2211/2656

8. 发明申请

US20190203444A1 ELECTRO HYDRAULIC DRIVE AND CONTROL SYSTEM 审中-公开
公开(公告)号：US20190203444A1
公开(公告)日：2019-07-04
申请号：US16302318
申请日：2017-05-17
申请人： FLUTRON AB
发明人： Stig Stenlund
IPC分类号： E02F9/22 , E02F9/26 , F15B11/17 , F15B21/14 , F15B11/046 , F15B11/042
CPC分类号： E02F9/2203 , E02F9/2228 , E02F9/2235 , E02F9/2267 , E02F9/2271 , E02F9/2292 , E02F9/2296 , E02F9/26 , F15B11/0426 , F15B11/046 , F15B11/17 , F15B15/202 , F15B21/14 , F15B2211/20507 , F15B2211/20515 , F15B2211/20546 , F15B2211/20576 , F15B2211/2656 , F15B2211/30565 , F15B2211/31582 , F15B2211/6306 , F15B2211/6309 , F15B2211/633 , F15B2211/6333 , F15B2211/6336 , F15B2211/6346 , F15B2211/6652 , F15B2211/6654 , F15B2211/7053 , F15B2211/7058 , F15B2211/7135 , F15B2211/75 , F15B2211/755 , F15B2211/7656 , F15B2211/78 , F15B2211/88
摘要： A operator supporting electrohydraulic drive and control system based on, position sensors (8) (9), a electronic control unite ECU (2), a recovery, storing and re-use system for energy, and with actuator (3) (4) and the drive control valve (6) (7) bolted together in one (3+6) (4+7) unite and with the valve (6) (7) independently of the ECU (2) is controlling effective use of pump capacity and recovery of energy and with control of speed for low speeds, or prevented speed by valves (6) (7) or pump (10) (10a) (11) (11a) displacement and for higher speed with control of deplacement of pumps and motors and with valves (6) (7) at the same time controlled to be fully open.

9. 发明授权

US09841037B2 Construction equipment hydraulic system and control method therefor 有权
公开(公告)号：US09841037B2
公开(公告)日：2017-12-12
申请号：US14777823
申请日：2014-03-19
申请人： Doosan Infracore Co., Ltd.
发明人： Yong Ho Tho , Woo Yong Jung , Yong Lak Cho
IPC分类号： F15B13/06 , E02F9/22 , F15B11/17
CPC分类号： F15B13/06 , E02F9/2228 , E02F9/2235 , E02F9/2267 , E02F9/2271 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B2211/20523 , F15B2211/20553 , F15B2211/20576 , F15B2211/25 , F15B2211/2656 , F15B2211/3111 , F15B2211/6346 , F15B2211/6652
摘要： Disclosed are a hydraulic system for construction equipment and a method of controlling the same, and the hydraulic system for construction equipment includes: a plurality of pressure control-type hydraulic pumps driven by an engine provided in construction equipment; an actuator driven by working oil discharged from the hydraulic pump; a closed center-type main control valve provided between the hydraulic pump and the actuator, and bypassing a virtual flow rate; and a controller configured to control the hydraulic pump by receiving the bypassed virtual flow rate from the main control valve.

10. 发明授权

US09790665B2 Hydraulic control device and construction machine provided with same 有权
公开(公告)号：US09790665B2
公开(公告)日：2017-10-17
申请号：US14371314
申请日：2012-12-27
申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Kazuharu Tajima , Koji Ueda
IPC分类号： F15B11/17 , E02F9/22 , E02F3/43 , E02F3/32 , E02F3/42 , F15B11/16
CPC分类号： E02F9/2296 , E02F3/32 , E02F3/425 , E02F3/435 , E02F9/2235 , E02F9/2239 , E02F9/2282 , E02F9/2285 , E02F9/2292 , F15B11/165 , F15B11/167 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/2654 , F15B2211/2656 , F15B2211/30565 , F15B2211/31511 , F15B2211/329 , F15B2211/40507 , F15B2211/41509 , F15B2211/45 , F15B2211/6316 , F15B2211/6652 , F15B2211/781
摘要： A hydraulic control device that reduces the loss of the power of a pump in combined operation of boom lowering and arm pushing. A controller performs single control of increasing capacity of a first pump in accordance with increase in an operation amount of a boom operation member, in a single operation of the boom lowering. On the other hand, the controller restricts the capacity of the first pump compared to capacity in the single control, during a restriction control period when the combined operation of boom lowering and arm pushing is detected, and the operation amount of the boom operation member is a prescribed operation amount or more.

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