公开(公告)号：US20190226179A1

公开(公告)日：2019-07-25

申请号：US16288941

申请日：2019-02-28

申请人： KCM Corporation

发明人： Kohtaroh UNO ,  Shoroku KAWAHARA ,  Keigo KIKUCHI ,  Koji HYODO ,  Atsushi SHIMAZU

IPC分类号： E02F9/22 ,  F02D29/04 ,  E02F9/20 ,  E02F9/08 ,  E02F3/28 ,  F16H61/468 ,  E02F9/02 ,  E02F3/43

CPC分类号： E02F9/2253 ,  E02F3/283 ,  E02F3/431 ,  E02F9/02 ,  E02F9/0841 ,  E02F9/2066 ,  E02F9/2289 ,  E02F9/2296 ,  F02D29/04 ,  F16H61/468

摘要： To improve working efficiency in an eco mode when a power mode and the eco mode have been set in a wheel loader, the wheel loader is provided with a controller having an eco mode characteristic line, a power mode characteristic line, and a lifting operation characteristic line having a matching point C located between a matching point A between a working device operating engine torque characteristic line and the eco mode characteristic line and a matching point B between the working device operating engine torque characteristic line and the power mode characteristic line. The controller includes a control portion, which controls a HST pump in accordance with the lifting operation characteristic line when lifting operation of a lift arm is detected while the eco mode has been selected by a work mode selecting portion.

公开(公告)号：US10202986B2

公开(公告)日：2019-02-12

申请号：US15107954

申请日：2014-12-15

申请人： KCM Corporation

发明人： Shinichiro Tanaka ,  Hiroyasu Kodera

IPC分类号： B62D5/065 ,  F15B11/048 ,  B62D5/07 ,  E02F9/08 ,  E02F9/22 ,  F15B11/16 ,  B62D5/06 ,  B62D5/08 ,  B62D5/10 ,  F04B49/06 ,  F04B49/22 ,  F15B5/00 ,  F15B15/04 ,  F15B15/24

摘要： A hydraulic drive system (1) including a meter-in compensator (37) and a bleed-off compensator (42) comprises a plurality of sensors (64 to 68), a controller (62), and an outlet pressure switching valve (61). The controller (62) determines whether or not the state of a wheel loader (2) which is detected based on the signals output from the sensors (64 to 68) meets a predetermined steering limiting condition. When the controller (62) determines that the state of the wheel loader (2) meets the steering limiting condition, it outputs a command signal to the outlet pressure switching valve (61). The outlet pressure switching valve (61) reduces the flow rate of the hydraulic oil flowing to steering cylinders (18L, 18R), in response to the command signal in such a manner that the flow rate becomes lower than that corresponding to the operation amount of a handle of a steering device (35).

公开(公告)号：US20180375445A1

公开(公告)日：2018-12-27

申请号：US16062326

申请日：2017-01-06

申请人： Seiki CHIBA ,  Mikio WAKI ,  KCM CORPORATION ,  ADEKA CORPORATION

发明人： Noriyuki OYA ,  Hideyuki YOKOTA ,  Masatoshi HOMMA ,  Keiichi ODAGIRI ,  Hiromi TAKENOUCHI ,  Tomoaki SAIKI ,  Seiki CHIBA ,  Mikio WAKI

IPC分类号： H02N11/00 ,  H02N2/18 ,  H01L41/113 ,  H01L41/193 ,  H01L41/09 ,  H01L41/187

摘要： A converter includes a first electrode, a second electrode, a dielectric elastomer film, and a high-dielectric-constant film. The dielectric elastomer film is disposed between the first electrode and the second electrode, and has relative dielectric constant ε1. The high-dielectric-constant film is disposed at one or both of: a location between the first electrode and the dielectric elastomer film; and a location between the second electrode and the dielectric elastomer film. The high-dielectric-constant film has relative dielectric constant ε2 that is higher than the relative dielectric constant ε1.

公开(公告)号：US10150360B2

公开(公告)日：2018-12-11

申请号：US15557718

申请日：2016-03-11

申请人： KCM Corporation

发明人： Takatomo Ohno ,  Hiroyuki Ishida ,  Atsushi Kondo ,  Tadahiro Miyagawa

IPC分类号： B60K11/06 ,  B60K11/04 ,  F01P5/06 ,  E02F9/08 ,  B60R19/52

摘要： A cooling structure of an operating machine, such as a wheel loader, which structure cools an engine of the operating machine includes: a cover (such as a rear cover) forming a part of an outer surface of a vehicle body of the operating machine and including a large number of ventilation opening portions; a radiator provided at the vehicle body so as to be opposed to the cover; and a cooling fan arranged between the cover and the radiator and close to the cover with an interval corresponding to a size of the ventilation opening portion and provided so as not to be turnable relative to the vehicle body.

公开(公告)号：US09957695B2

公开(公告)日：2018-05-01

申请号：US15508205

申请日：2015-12-25

申请人： KCM Corporation

发明人： Takashi Takeyama ,  Keigo Kikuchi ,  Katsutaka Hara ,  Masashi Yamashita

IPC分类号： B60K1/04 ,  B60K5/00 ,  B60K6/20 ,  E02F9/08 ,  B60K13/02 ,  B60K13/04 ,  E02F9/00 ,  F01N3/28 ,  F01N3/10 ,  F01N3/20 ,  F02M35/04 ,  E02F3/34

CPC分类号： E02F9/0866 ,  B60K13/02 ,  B60K13/04 ,  E02F3/34 ,  E02F9/00 ,  E02F9/0891 ,  F01N3/103 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/28 ,  F01N2490/06 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  F01N2590/08 ,  F01N2610/02 ,  F02M35/042

摘要： An exhaust system of a work machine is equipped with a first exhaust system, a second exhaust system, and a third exhaust system. The first exhaust system and the third exhaust system are arranged to be in parallel with respective one ends directed in the same direction. In a plan view, the second exhaust system is arranged with the other end side directed in the same direction as the one end sides of the first exhaust system and the third exhaust system to be in parallel with the first exhaust system and the third exhaust system between the first exhaust system and the third exhaust system and, in a side view, is arranged above the first exhaust system and the third exhaust system.

公开(公告)号：US20160368472A1

公开(公告)日：2016-12-22

申请号：US15122240

申请日：2015-04-09

申请人： KCM CORPORATION

发明人： Tomonori TAKADA ,  Takashi IKIMI ,  Kazuya SEKINE ,  Masaki HIGURASHI

IPC分类号： B60W20/10 ,  E02F9/20 ,  B60K25/02 ,  E02F3/34 ,  H02P7/18 ,  B60K6/50

CPC分类号： B60W20/10 ,  B60K6/46 ,  B60K6/50 ,  B60K25/02 ,  B60K2025/026 ,  B60W2300/17 ,  B60W2510/081 ,  B60W2510/083 ,  B60W2710/083 ,  B60W2710/086 ,  B60Y2200/92 ,  B60Y2300/18 ,  B60Y2300/60 ,  B60Y2400/87 ,  E02F3/34 ,  E02F3/3417 ,  E02F9/2075 ,  E02F9/2079 ,  E02F9/2091 ,  E02F9/2095 ,  H02M3/155 ,  H02M7/5387 ,  H02M2001/007 ,  H02P7/18 ,  Y02T10/6217 ,  Y10S903/915

摘要： A hybrid work machine includes: an engine configured to drive a hydraulic pump as a hydraulic source of a hydraulic actuator; an engine-assist motor generator attached to the engine; an electric motor for use in a part of a driving system of the work machine; an electricity storage device configured to store generated power of the motor generator; a power converter disposed between the electric motor and DC buses; and a buck-boost converter disposed between the DC buses and the electricity storage device, and configured to perform power transfer between the DC buses and the electricity storage device by raising and lowering a voltage of the DC buses, the hybrid work machine, further comprises: a controller configured to temporarily raise the voltage of the DC buses when a torque required for the electric motor exceeds a torque outputtable at the voltage of the DC buses connected to the power converter.

摘要翻译： 混合动力作业机械包括：发动机，被配置为驱动液压泵作为液压致动器的液压源; 附接在发动机上的发动机辅助电动发电机; 用于工作机械的驱动系统的一部分的电动机; 配置为存储所述电动发电机的发电电力的蓄电装置; 设置在电动机和直流母线之间的功率转换器; 以及设置在所述直流母线和所述蓄电装置之间的降压 - 升压转换器，并且被配置为通过升高和降低所述直流母线的电压来在所述直流母线与所述蓄电装置之间进行功率传递，所述混合动力工作机还包括 ：当所述电动机所需的转矩超过在与所述功率转换器连接的所述直流母线的电压时输出的转矩时，控制器被配置为暂时升高所述直流总线的电压。

公开(公告)号：US20160319515A1

公开(公告)日：2016-11-03

申请号：US15206770

申请日：2016-07-11

申请人： KCM Corporation

发明人： Noritaka ITO

IPC分类号： E02F9/20 ,  E02F9/22 ,  B60L11/08 ,  B60W10/08 ,  B60W10/06 ,  E02F3/34 ,  E02F9/02 ,  B60W20/00

CPC分类号： B60W10/06 ,  B60L1/003 ,  B60L11/005 ,  B60L11/08 ,  B60L11/126 ,  B60L2200/40 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2250/24 ,  B60L2250/26 ,  B60W10/08 ,  B60W20/00 ,  B60W30/18054 ,  B60W2300/17 ,  B60W2520/04 ,  B60W2540/00 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2710/0644 ,  E02F3/34 ,  E02F9/02 ,  E02F9/2004 ,  E02F9/2075 ,  E02F9/2079 ,  E02F9/2091 ,  E02F9/2095 ,  E02F9/2203 ,  E02F9/2225 ,  E02F9/2235 ,  E02F9/2246 ,  E02F9/2296 ,  Y02T10/6217 ,  Y02T10/642 ,  Y02T10/7022 ,  Y02T10/7077 ,  Y10S903/93

摘要： A hybrid work vehicle includes a work device, a traveling drive device, a lever operation quantity detection unit, an engagement state detection unit, a pedal operation quantity detection unit, a travel state detection unit, and an engine control unit. The engine control unit controls an engine rotation rate based upon at least either the lever operation quantity or the pedal operation quantity in correspondence to either the engaged state or the non-engaged state and either the traveling state or the non-traveling state.

摘要翻译： 混合作业车辆包括作业装置，行驶驱动装置，杆操作量检测单元，接合状态检测单元，踏板操作量检测单元，行驶状态检测单元和发动机控制单元。 发动机控制单元基于与接合状态或非接合状态以及行驶状态或非行驶状态对应的杆操作量或踏板操作量中的至少一个来控​​制发动机转速。

公开(公告)号：US09458758B2

公开(公告)日：2016-10-04

申请号：US14358324

申请日：2012-11-15

申请人： KCM Corporation

发明人： Koji Hyodo ,  Atsushi Shimazu ,  Isamu Aoki ,  Tetsuji Tanaka ,  Keigo Kikuchi

IPC分类号： F16D31/02 ,  F01P7/02 ,  F16H61/4165 ,  F16H61/4043 ,  F01P7/04 ,  F16H61/4061 ,  F01P5/04 ,  E02F9/22 ,  B60K25/02

CPC分类号： F01P7/02 ,  B60K2025/026 ,  E02F9/226 ,  F01P5/043 ,  F01P7/044 ,  F16H61/4043 ,  F16H61/4061 ,  F16H61/4165

摘要： A cooling fan control unit, in response to an operation performed at the rotation direction selector switch to select a reverse rotation setting while the cooling fan is rotating forward, lowers a relief pressure setting at the variable relief valve to a predetermined lower limit value over a predetermined length of time, and once the discharge pressure at the hydraulic pump detected by the pressure sensor is lowered to a predetermined switch-over pressure, executes control so as to switch the direction of flow of pressure oil to the hydraulic motor to the reverse direction by switching the direction switching valve and raises the relief pressure setting at the variable relief valve to a reverse rotation pressure setting, at which the hydraulic motor rotates in the reverse direction, over a predetermined length of time.

摘要翻译： 一种冷却风扇控制单元，响应于在所述旋转方向选择开关处进行的操作以在所述冷却风扇向前旋转时选择反向旋转设定，将所述可变溢流阀上的溢流压力设定值降低到预定的下限值 预定的时间长度，一旦由压力传感器检测到的液压泵的排出压力下降到预定的切换压力，则执行控制，以将压力油的流向朝向液压马达的相反方向 通过切换方向切换阀，将可变溢流阀的溢流压力设定提高到液压马达反方向旋转预定时间长度的反转压力设定值。

公开(公告)号：US20190249396A1

公开(公告)日：2019-08-15

申请号：US16328840

申请日：2018-03-07

申请人： KCM Corporation

发明人： Shinichiro TANAKA

IPC分类号： E02F9/22 ,  F15B11/10

CPC分类号： E02F9/2228 ,  E02F9/22 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/02 ,  F15B11/028 ,  F15B11/10 ,  F15B2211/20538 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/30525 ,  F15B2211/329 ,  F15B2211/55 ,  F15B2211/6306 ,  F15B2211/6346 ,  F15B2211/7053

摘要： This hydraulic drive device for a work vehicle includes a main pump (1) of a variable displacement type or a fixed displacement type discharging pressure oil, a main flow passage (F1) for supplying pressure oil of the main pump to an actuator, a sub-pump (5) of a fixed displacement type discharging pressure oil, a sub-flow passage (F2) for making pressure oil of the sub-pump merge with the main flow passage and supplying the pressure oil to the actuator (2), a merging directional valve (6A) for connecting or cutting off the main flow passage and the sub-flow passage, a controller (30) for controlling operation of the merging directional valve, and a relief valve (7A) arranged in the sub-flow passage, in which the relief valve has a pressure override characteristic having a tendency that the relief pressure increases from a cracking pressure to a set pressure as a relief flow rate increases.

公开(公告)号：US20190161940A1

公开(公告)日：2019-05-30

申请号：US16096559

申请日：2017-09-27

申请人： KCM Corporation

发明人： Kazuya TAKEDA ,  Hiroki GOTOU ,  Kazuo ISHIDA ,  Yoshihiko NAKAZAWA

IPC分类号： E02F9/22 ,  F16H61/4008

摘要： In a work vehicle provided with: a working device including an arm and a bucket; a vehicle speed detection device that detects a vehicle speed; a travel drive device that outputs a travel driving force increasing in response to a decrease in the vehicle speed at a time of excavation; and a control device that controls the travel driving force by the travel drive device, the control device is characterized by including a limit control section that limits the travel driving force during a specified time which passes from when the vehicle speed detected by the vehicle speed detection device becomes a predetermined first vehicle speed threshold value or less and the work vehicle plunges into an object to be excavated until an operation of the working device is started.