公开(公告)号：US08355846B2

公开(公告)日：2013-01-15

申请号：US12680856

申请日：2008-09-30

申请人： Katsuaki Kodaka ,  Hidetoshi Satake ,  Youichi Kowatari ,  Yuuki Gotou ,  Kazuhiro Ichimura

发明人： Katsuaki Kodaka ,  Hidetoshi Satake ,  Youichi Kowatari ,  Yuuki Gotou ,  Kazuhiro Ichimura

IPC分类号： B60K31/02

CPC分类号： E02F9/2253 ,  E02F9/2004 ,  F16H61/4035 ,  F16H61/4061 ,  G05G1/30 ,  G05G1/38 ,  G05G5/02 ,  G05G5/06

摘要： A pedal lock control device for work vehicle includes: a motor driving device that drives a travel hydraulic motor according to an operation amount of a travel pedal; a locking device that locks the travel pedal in a state of being operated; an instruction device that instructs lock and unlock of the travel pedal by the locking device upon an operation by an operator; a lock intention detection device that detects an intention of an operator to permit lock of the travel pedal; and a lock control device that locks the travel pedal by the locking device when an intention of the operator to permit lock is detected by the lock intention detection device and lock of the travel pedal is instructed by the instruction device.

摘要翻译： 一种用于工作车辆的踏板锁定控制装置，包括：电动机驱动装置，其根据行驶踏板的操作量驱动行驶液压马达; 锁定装置，其将行驶踏板锁定在被操作的状态; 指令装置，其在操作者操作时指示由所述锁定装置锁定和解锁所述行驶踏板; 锁定意图检测装置，其检测操作者允许锁定行驶踏板的意图; 以及当通过锁定意图检测装置检测到操作者允许锁定的意图并且由指示装置指示行驶踏板的锁定时，通过锁定装置来锁定行驶踏板的锁定控制装置。

公开(公告)号：US6101456A

公开(公告)日：2000-08-08

申请号：US817489

申请日：1997-04-15

申请人： Youichi Kowatari ,  Toichi Hirata ,  Hidefumi Takegahara ,  Tsukasa Toyooka ,  Kouji Ishikawa ,  Genroku Sugiyama ,  Shigehiro Yoshinaga

发明人： Youichi Kowatari ,  Toichi Hirata ,  Hidefumi Takegahara ,  Tsukasa Toyooka ,  Kouji Ishikawa ,  Genroku Sugiyama ,  Shigehiro Yoshinaga

IPC分类号： E02F9/20 ,  E02F9/22 ,  F04B49/00 ,  F04B49/06 ,  F15B11/00 ,  F15B11/02 ,  G05B11/36 ,  G05B13/02 ,  G05B13/00

CPC分类号： G05B13/0265 ,  E02F9/2025 ,  E02F9/2235 ,  F04B49/065

摘要： A control system wherein a reverse characteristic having a reverse input/output relationship to a target input/output characteristic of a control object, is preset, and a target value for an output of the control object is calculated. A command signal corresponding to the target value then is determined based on the preset reverse characteristic, and the command signal is output to the control object. The control system includes first means for calculating a command signal corresponding to a given target value for the output of the control object based on the preset reverse characteristic, outputting the command signal to the control object, measuring an output of the control object and estimating a deviation between an actual input/output characteristic of the control object and the target input/output characteristic therefor, and storing data on the deviation between the input/output characteristics as learning correction data. The control system further includes second means for reading out the stored learning correction data and correcting the command signal using the learning correction data.

摘要翻译： PCT No.PCT / JP96 / 02517 Sec。 371日期1997年04月15日 102（e）日期1997年04月15日PCT 1996年9月5日提交的一种控制系统，其中具有与控制对象的目标输入/输出特性相反的输入/输出关系的反向特性被预先设定， 计算控制对象的输出。 基于预设的反向特性来确定与目标值相对应的命令信号，并且将命令信号输出到控制对象。 控制系统包括：第一装置，用于基于预设的反向特性来计算对应于控制对象的输出的给定目标值的命令信号，向控制对象输出命令信号，测量控制对象的输出并估计一个 控制对象的实际输入/输出特性与其目标输入/输出特性之间的偏差，并且存储关于输入/输出特性之间的偏差的数据作为学习校正数据。 控制系统还包括用于读出所存储的学习校正数据并使用学习校正数据校正命令信号的第二装置。

公开(公告)号：US5890303A

公开(公告)日：1999-04-06

申请号：US774703

申请日：1996-12-26

申请人： Kouji Ishikawa ,  Toichi Hirata ,  Genroku Sugiyama ,  Tsukasa Toyooka ,  Youichi Kowatari

发明人： Kouji Ishikawa ,  Toichi Hirata ,  Genroku Sugiyama ,  Tsukasa Toyooka ,  Youichi Kowatari

IPC分类号： E02F9/22 ,  F15B11/16 ,  E02F5/02

CPC分类号： E02F9/2282 ,  E02F9/2242 ,  E02F9/2292

摘要： A pilot pressure sensor detects a pilot pressure from an arm operating unit and outputs a pilot pressure signal. A drive signal corresponding to the pilot pressure signal is then outputted from a controller to a solenoid-operated proportional valve. Through the solenoid-operated proportional valve, a pilot pressure is fed to an auxiliary selector valve so that an opening of said auxiliary selector valve becomes greater. Of pressure oil delivered from a first hydraulic pump, a flow rate of the pressure oil to be branched to a side of a by-pass circuit is hence increased. The pressure oil fed through the by-pass circuit passes through a merging directional control valve and is caused to merge with pressure oil fed from a second hydraulic pump. The thus-merged pressure oil is then fed to a hydraulic arm cylinder.

摘要翻译： 先导压力传感器检测来自臂操作单元的先导压力并输出先导压力信号。 然后将与先导压力信号对应的驱动信号从控制器输出到电磁比例阀。 通过电磁比例阀，先导压力被供给辅助选择阀，使得所述辅助选择阀的开度变大。 从第一液压泵输送的压力油中，因此分支到旁通回路侧的压力油的流量增加。 通过旁通回路供给的压力油通过合流方向控制阀，并与从第二液压泵供给的压力油合并。 然后将这样合并的压力油送入液压臂缸。

公开(公告)号：US5848531A

公开(公告)日：1998-12-15

申请号：US774725

申请日：1997-01-03

申请人： Tsuyoshi Nakamura ,  Toichi Hirata ,  Genroku Sugiyama ,  Tsukasa Toyooka ,  Youichi Kowatari ,  Kouji Ishikawa

发明人： Tsuyoshi Nakamura ,  Toichi Hirata ,  Genroku Sugiyama ,  Tsukasa Toyooka ,  Youichi Kowatari ,  Kouji Ishikawa

IPC分类号： E02F9/22 ,  F15B11/028 ,  F16D31/02

CPC分类号： E02F9/2282 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2296

摘要： A hydraulic system for a construction machine includes a hydraulic pump driven by a prime mover, actuators driven by a hydraulic fluid delivered from the hydraulic pump, flow control valves for controlling flow of the hydraulic fluid to the actuators and operation means for operating the flow control valves. A relief value sets a relief pressure for limiting the maximum delivery pressure of the hydraulic pump and relief pressure change means increase or decrease the relief pressure set by the relief valve. The relief pressure change means automatically increase or decrease the relief pressure in accordance with the input amount of the operation means.

摘要翻译： 用于建筑机械的液压系统包括由原动机驱动的液压泵，由从液压泵输送的液压流体驱动的致动器，用于控制液压流体到致动器的流量控制阀和用于操作流量控制的操作装置 阀门 释放值设定用于限制液压泵的最大输送压力的溢流压力，溢流压力改变装置增加或减少由安全阀设定的溢流压力。 溢流压力改变装置根据操作装置的输入量自动增加或减小溢流压力。

公开(公告)号：US08494733B2

公开(公告)日：2013-07-23

申请号：US12529162

申请日：2008-02-28

申请人： Katsuaki Kodaka ,  Hidetoshi Satake ,  Youichi Kowatari ,  Yuuki Gotou ,  Kazuhiro Ichimura

发明人： Katsuaki Kodaka ,  Hidetoshi Satake ,  Youichi Kowatari ,  Yuuki Gotou ,  Kazuhiro Ichimura

IPC分类号： G06F19/00

CPC分类号： E02F9/2253 ,  B60W10/06 ,  B60W2520/10 ,  B60W2710/0644 ,  B60W2720/10 ,  E02F9/2066 ,  E02F9/2246 ,  E02F9/2285 ,  E02F9/2296 ,  F02D29/02 ,  F16H61/423 ,  F16H61/431 ,  F16H2059/6861 ,  F16H2059/6876

摘要： A prime mover rotation speed control system for hydraulically driven vehicle includes: a hydraulic pump driven by a prime mover; a hydraulic motor for traveling driven with pressure oil supplied from the hydraulic pump; an operation member that outputs a travel command in accordance with an amount of operation by the operation member; a flow control device that controls one of a flow of the pressure oil from the hydraulic pump to the hydraulic motor and a flow rate of the pressure oil discharged from the hydraulic motor, based on the travel command that is output in accordance with the amount of operation by the operation member; a target rotation number outputting device that outputs a target rotation number of the prime mover based on a command; a rotation number control device that controls a rotation number of the prime mover to be the target rotation number; a vehicle speed detection device that detects a vehicle speed; and a vehicle speed calculation device that calculates a target vehicle speed in accordance with the amount of operation by the operation member. The rotation number control device includes a correction device that adjusts the target rotation number based on the vehicle speed detected by the vehicle speed detection device and the target vehicle speed calculated by the vehicle speed calculation device.

摘要翻译： 用于液压驱动车辆的原动机转速控制系统包括：由原动机驱动的液压泵; 用于由液压泵供应的用压力油驱动的液压马达; 操作构件，其根据操作构件的操作量输出行驶指令; 流量控制装置，其控制从液压泵到液压马达的压力油的流动中的一个以及从液压马达排出的压力油的流量，该运动指令根据根据 由操作员操作; 目标转数输出装置，其基于命令输出原动机的目标转数; 旋转数控制装置，其将原动机的转数控制为目标转数; 检测车速的车速检测装置; 以及车速计算装置，其根据操作构件的操作量来计算目标车速。 旋转数控制装置包括校正装置，其基于由车速检测装置检测出的车速和由车速计算装置计算出的目标车速来调整目标转速。

公开(公告)号：US08359140B2

公开(公告)日：2013-01-22

申请号：US12680941

申请日：2008-09-30

申请人： Katsuaki Kodaka ,  Hidetoshi Satake ,  Youichi Kowatari ,  Yuuki Gotou ,  Kazuhiro Ichimura

发明人： Katsuaki Kodaka ,  Hidetoshi Satake ,  Youichi Kowatari ,  Yuuki Gotou ,  Kazuhiro Ichimura

IPC分类号： B60K31/02

CPC分类号： E02F9/2004 ,  G05G1/38 ,  G05G5/06

摘要： A pedal lock control device for work vehicle includes: a motor driving device that drives a travel hydraulic motor in response to an operation amount of a travel pedal; a locking device that locks the travel pedal in a state of being operated; an instruction device that instructs lock and unlock of the travel pedal by the locking device upon an operation by an operator; a first detection device that detects a first signal change according to an unlock operation which is an operation that reflects an intention of an operator to release the locking device and is other than an unlock operation by the instruction device; a second detection device that detects a second signal change according to an unlock operation which is an operation that reflects an intention of an operator to release the locking device and is other than the unlock operation by the instruction device, with the second signal change being different from the first signal change; and a lock control device that unlocks the locking device when an unlock operation is detected by at least one of the first detection device and the second detection device in a state where the travel pedal is locked by the locking device.

摘要翻译： 一种用于工作车辆的踏板锁定控制装置，包括：电动机驱动装置，其响应于行驶踏板的操作量驱动行驶液压马达; 锁定装置，其将行驶踏板锁定在被操作的状态; 指令装置，其在操作者操作时指示由所述锁定装置锁定和解锁所述行驶踏板; 第一检测装置，其根据解锁操作来检测第一信号变化，所述解锁操作是反映操作者释放所述锁定装置的意图的操作，并且除了所述指令装置的解锁操作之外; 第二检测装置，其根据解锁操作来检测第二信号变化，该解锁操作是反映操作者释放锁定装置的意图的操作，并且除了指令装置的解锁操作之外，第二信号变化是不同的 从第一个信号变化; 以及锁定控制装置，其在由所述锁定装置锁定所述行驶踏板的状态下，当所述第一检测装置和所述第二检测装置中的至少一个检测到解锁操作时，解锁所述锁定装置。

公开(公告)号：US20100106382A1

公开(公告)日：2010-04-29

申请号：US12529162

申请日：2008-02-28

申请人： Katsuaki Kodaka ,  Hidetoshi Satake ,  Youichi Kowatari ,  Yuuki Gotou ,  Kazuhiro Ichimura

发明人： Katsuaki Kodaka ,  Hidetoshi Satake ,  Youichi Kowatari ,  Yuuki Gotou ,  Kazuhiro Ichimura

IPC分类号： G06F19/00

CPC分类号： E02F9/2253 ,  B60W10/06 ,  B60W2520/10 ,  B60W2710/0644 ,  B60W2720/10 ,  E02F9/2066 ,  E02F9/2246 ,  E02F9/2285 ,  E02F9/2296 ,  F02D29/02 ,  F16H61/423 ,  F16H61/431 ,  F16H2059/6861 ,  F16H2059/6876

摘要： A prime mover rotation speed control system for hydraulically driven vehicle includes: a hydraulic pump driven by a prime mover; a hydraulic motor for traveling driven with pressure oil supplied from the hydraulic pump; an operation member that outputs a travel command in accordance with an amount of operation by the operation member; a flow control device that controls one of a flow of the pressure oil from the hydraulic pump to the hydraulic motor and a flow rate of the pressure oil discharged from the hydraulic motor, based on the travel command that is output in accordance with the amount of operation by the operation member; a target rotation number outputting device that outputs a target rotation number of the prime mover based on a command; a rotation number control device that controls a rotation number of the prime mover to be the target rotation number; a vehicle speed detection device that detects a vehicle speed; and a vehicle speed calculation device that calculates a target vehicle speed in accordance with the amount of operation by the operation member. The rotation number control device includes a correction device that adjusts the target rotation number based on the vehicle speed detected by the vehicle speed detection device and the target vehicle speed calculated by the vehicle speed calculation device.

摘要翻译： 用于液压驱动车辆的原动机转速控制系统包括：由原动机驱动的液压泵; 用于由液压泵供应的用压力油驱动的液压马达; 操作构件，其根据操作构件的操作量输出行驶指令; 流量控制装置，其控制从液压泵到液压马达的压力油的流动中的一个以及从液压马达排出的压力油的流量，该运动指令根据根据 由操作员操作; 目标转数输出装置，其基于命令输出原动机的目标转数; 旋转数控制装置，其将原动机的转数控制为目标转数; 检测车速的车速检测装置; 以及车速计算装置，其根据操作构件的操作量来计算目标车速。 旋转数控制装置包括校正装置，其基于由车速检测装置检测出的车速和由车速计算装置计算出的目标车速来调整目标转速。

公开(公告)号：US5934879A

公开(公告)日：1999-08-10

申请号：US771195

申请日：1996-12-20

申请人： Shigetoshi Konno ,  Toichi Hirata ,  Genroku Sugiyama ,  Shigehiro Yoshinaga ,  Youichi Kowatari ,  Kouji Ishikawa

发明人： Shigetoshi Konno ,  Toichi Hirata ,  Genroku Sugiyama ,  Shigehiro Yoshinaga ,  Youichi Kowatari ,  Kouji Ishikawa

IPC分类号： E02F9/22 ,  F04B49/06 ,  F04B49/00

CPC分类号： E02F9/2246 ,  E02F9/2235 ,  E02F9/2296 ,  B60W2710/0644

摘要： An engine torque, which corresponds to a target engine speed inputted in a controller, is determined by a functional computing function unit. A torque correction value is added to the engine torque, followed by the multiplication with a constant. The product is divided by a pump delivery pressure to determine a pump displacement. A target tilting corresponding to this value is determined by another functional computing function unit, and is then compared with another target tilting which has been determined from a negative control pressure. The smaller one is selected and is outputted as a target tilting. The torque correction value is set at an EEPROM through an input device as desired. Selection of a negative value as the torque correction value makes it possible to prevent occurrence of stalling.

摘要翻译： 对应于输入到控制器中的目标发动机转速的发动机扭矩由功能计算功能单元确定。 将扭矩校正值加到发动机转矩上，然后与常数相乘。 产品除以泵的输送压力以确定泵的排量。 对应于该值的目标倾斜由另一功能计算功能单元确定，然后与从负控制压力确定的另一目标倾斜进行比较。 选择较小的一个作为目标倾斜输出。 转矩校正值根据需要通过输入装置设置在EEPROM上。 选择负值作为转矩校正值使得可以防止停止的发生。

公开(公告)号：US08424298B2

公开(公告)日：2013-04-23

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： F16D31/02

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。

公开(公告)号：US07970522B2

公开(公告)日：2011-06-28

申请号：US11909780

申请日：2006-11-09

申请人： Hidenobu Tsukada ,  Kazunori Nakamura ,  Youichi Kowatari ,  Masaki Yoshikawa

发明人： Hidenobu Tsukada ,  Kazunori Nakamura ,  Youichi Kowatari ,  Masaki Yoshikawa

IPC分类号： G06F7/00

CPC分类号： F16H61/0213 ,  E02F9/2253 ,  E02F9/26 ,  F16H59/44 ,  F16H2061/0087 ,  F16H2061/0225 ,  F16H2061/0234 ,  Y10T74/19251

摘要： A work machine gear shifting control system provides gear shifting conditions for an automatic gear shifting mode in accordance with work site conditions. An area 62 of a display device 49 displays a permissible velocity setting range and setup operation guidance, and another area 64 shows guidance to indicate whether the setting is acceptable or unacceptable. When the traveling velocity falls within the permissible velocity setting range, the displayed guidance changes to indicate that the setting is acceptable. When, in this instance, an operator presses a setup switch 23 with desired timing, a transmission gear shifting control section 45 acquires the prevailing vehicle velocity and velocity ratio (or vehicle velocity), and stores adjustment values in an adjustment value storage section 43 so that the vehicle velocity and velocity ratio become the gear shifting control threshold values for normal gear shifting control (steps S535 to S545).

摘要翻译： 工作机械换档控制系统根据工作现场条件为自动变速模式提供换档条件。 显示装置49的区域62显示容许速度设定范围和设定操作指导，另一区域64表示指示是否可接受或不可接受的指示。 当行驶速度落在容许速度设定范围内时，显示的指示变化，表示设定是可以接受的。 在这种情况下，当操作者按期望的时间按下安装开关23时，变速档换档控制部45获取主要的车速和速度比（或车速），并将调整值存储在调整值存储部43中 车速和速度比成为正常变速控制的变速控制阈值（步骤S535〜S545）。