专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US5848531A Hydraulic drive system for construction machines 失效
标题翻译：施工机械液压驱动系统
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。

12. 发明申请

US20100217492A1 Pedal Lock Control Device for Work Vehicle 失效
标题翻译：工作车踏板锁控制装置
公开(公告)号：US20100217492A1
公开(公告)日：2010-08-26
申请号：US12680856
申请日：2008-09-30
申请人： Katsuaki Kodaka , Hidetoshi Satake , Youichi Kowatari , Yuuki Gotou
发明人： Katsuaki Kodaka , Hidetoshi Satake , Youichi Kowatari , Yuuki Gotou
IPC分类号： G06F19/00
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。

13. 发明授权

US5813311A Hydraulic control system for hydraulic working machine 失效
标题翻译：液压作业机液压控制系统
公开(公告)号：US5813311A
公开(公告)日：1998-09-29
申请号：US771158
申请日：1996-12-20
申请人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Shigehiro Yoshinaga , Kouji Ishikawa , Youichi Kowatari , Tsuyoshi Nakamura
发明人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Shigehiro Yoshinaga , Kouji Ishikawa , Youichi Kowatari , Tsuyoshi Nakamura
IPC分类号： E02F9/20 , E02F9/22 , F15B11/16
CPC分类号： E02F9/2285 , E02F9/2228 , E02F9/2282
摘要： A controller 520 has a data portion 520c in which the relationship between a pump delivery pressure and a target opening area of a variable throttle 300a of a control valve 300 is set such that the target opening area is large when the pump delivery pressure is low, and small when the pump delivery pressure is high. An input portion 520a takes in a detection signal from a pump pressure sensor 700, a processing portion 520b reads the data from the data portion 520c and calculates a signal output to a solenoid proportional valve 590, and an output portion 520d converts the calculated signal into a command signal for the solenoid proportional valve 590 and outputs the command signal. Upon receiving the command signal from the controller 520, the solenoid proportional valve 590 produces a command pilot pressure for the control valve 300 corresponding to the input signal and controls the opening area of the variable throttle 300a.
摘要翻译：控制器520具有数据部分520c，其中泵输送压力和控制阀300的可变节流阀300a的目标开口面积之间的关系被设定为当泵输送压力低时目标开口面积大，并且当泵输送压力高时小。输入部分520a从泵压力传感器700接收检测信号，处理部分520b从数据部分520c读取数据，并计算输出到电磁比例阀590的信号，输出部分520d将计算出的信号转换成用于电磁比例阀590的命令信号并输出命令信号。电磁比例阀590从控制器520接收到指令信号时，根据输入信号产生控制阀300的指令先导压力，并控制可变节流阀300a的开度面积。

14. 发明授权

US08494733B2 Prime mover rotation speed control system for hydraulically driven vehicle 有权
标题翻译：用于液压驱动车辆的原动机转速控制系统
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。

15. 发明授权

US08359140B2 Pedal lock control device for work vehicle 有权
标题翻译：工作车踏板锁控制装置
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。

16. 发明申请

US20100106382A1 Prime Mover Rotation Speed Control System for Hydraulically Driven Vehicle 有权
标题翻译：液压驱动车辆主移动旋转速度控制系统
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。

17. 发明授权

US5934879A Pump torque control system 失效
标题翻译：泵扭矩控制系统
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式