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    • 5. 发明申请
    • Hydraulic Pressure Supply Device for Industrial Vehicle
    • 工业车辆液压供油装置
    • US20100204008A1
    • 2010-08-12
    • US12679820
    • 2008-09-25
    • Hiroyuki AzumaAtsushi ShimazuMasaki YoshikawaKosei Suzuki
    • Hiroyuki AzumaAtsushi ShimazuMasaki YoshikawaKosei Suzuki
    • B60W10/10B60W30/18
    • F16H61/0031F16H41/30Y10T74/19149Y10T74/19153Y10T477/688
    • A first hydraulic circuit leads, as clutch control pressure, pressurized oil supplied from a first hydraulic pump, to a transmission control device after regulating the pressurized oil, and leads, as torque converter operation oil, pressured oil to a torque converter, and leads pressurized oil to an oil cooler. Through a second hydraulic circuit, pressurized oil from a second hydraulic pump is distributed to a circuit portion downstream of the pressure regulation valve and upstream of a safety valve and to a circuit portion downstream of the torque converter and upstream of the oil cooler. A flow control device changes a proportion of a rate of flow in the second hydraulic circuit so that a proportion of the rate of flow to the circuit portion downstream of the torque converter and upstream of the oil cooler increases as pressure at an entrance of the torque converter increases.
    • 作为离合器控制压力的第一液压回路,在调节加压油之后,将从第一液压泵供给的加压油引导到变速器控制装置,并将作为变矩器操作油的加压油引导到变矩器,并将加压油 油到油冷却器。 通过第二液压回路,来自第二液压泵的加压油被分配到压力调节阀下游的电路部分和安全阀的上游以及转矩转换器下游的电路部分和油冷却器的上游。 流量控制装置改变第二液压回路中的流量比例,使得在扭矩转换器下游的电路部分和油冷却器上游的流量的比例随转矩入口处的压力而增加 转换器增加。
    • 6. 发明授权
    • Hydraulic control device for work vehicle
    • 工作车液压控制装置
    • US09340955B2
    • 2016-05-17
    • US13696537
    • 2011-05-06
    • Atsushi ShimazuHiroyuki AzumaKazuo ChounanYasunori Miyamoto
    • Atsushi ShimazuHiroyuki AzumaKazuo ChounanYasunori Miyamoto
    • F15B13/16E02F9/22E02F3/43
    • E02F9/2282E02F3/431E02F9/2207E02F9/2285E02F9/2296
    • A hydraulic control device for a work vehicle includes: a hydraulic pump that supplies pressure oil; an arm drive actuator that drives, with pressure oil supplied from the hydraulic pump, an arm attached to the work vehicle so as to swing the arm; a bucket drive actuator that drives, with pressure oil supplied from the hydraulic pump, a bucket attached to a front end of the arm, so as to swing the bucket; an arm drive pressure oil control valve that controls drive of the arm drive actuator by controlling pressure oil supplied from the hydraulic pump to the arm drive actuator; a bucket drive pressure oil control valve that controls drive of the bucket drive actuator by controlling pressure oil supplied from the hydraulic pump to the bucket drive actuator; an arm operation unit that controls the arm drive pressure oil control valve; a bucket operation unit that controls the bucket drive pressure oil control valve; an operating state detection unit that detects operating states of the arm drive actuator and the bucket drive actuator; and a flow control valve that restricts pressure oil to be supplied to the arm drive actuator as combined operation of the arm drive actuator and the bucket drive actuator is detected via the operating state detection unit.
    • 一种用于工作车辆的液压控制装置,包括:供给压力油的液压泵; 一个臂驱动执行机构,用液压泵供给的压力油驱动连接到作业车辆上的臂,使其摆动; 铲斗驱动致动器,其通过从所述液压泵供给的压力油驱动附接到所述臂的前端的铲斗,以使所述铲斗摆动; 臂驱动压力油控制阀,其通过控制从液压泵供给到臂驱动致动器的压力油来控制臂驱动致动器的驱动; 铲斗驱动压力油控制阀,其通过控制从液压泵供给到铲斗驱动致动器的压力油来控制铲斗驱动致动器的驱动; 手臂操作单元,其控制臂驱动压力油控制阀; 铲斗操作单元,其控制铲斗驱动压力油控制阀; 操作状态检测单元,其检测臂驱动致动器和铲斗驱动致动器的操作状态; 以及流量控制阀,其通过操作状态检测单元检测到臂驱动致动器和铲斗驱动致动器的组合操作,从而限制供给到臂驱动致动器的压力油。
    • 7. 发明授权
    • Hydraulic pressure supply device for industrial vehicle
    • 工业车辆液压供给装置
    • US08312793B2
    • 2012-11-20
    • US12679820
    • 2008-09-25
    • Hiroyuki AzumaAtsushi ShimazuMasaki YoshikawaKosei Suzuki
    • Hiroyuki AzumaAtsushi ShimazuMasaki YoshikawaKosei Suzuki
    • F16H47/00
    • F16H61/0031F16H41/30Y10T74/19149Y10T74/19153Y10T477/688
    • A first hydraulic circuit leads, as clutch control pressure, pressurized oil supplied from a first hydraulic pump, to a transmission control device after regulating the pressurized oil, and leads, as torque converter operation oil, pressured oil to a torque converter, and leads pressurized oil to an oil cooler. Through a second hydraulic circuit, pressurized oil from a second hydraulic pump is distributed to a circuit portion downstream of the pressure regulation valve and upstream of a safety valve and to a circuit portion downstream of the torque converter and upstream of the oil cooler. A flow control device changes a proportion of a rate of flow in the second hydraulic circuit so that a proportion of the rate of flow to the circuit portion downstream of the torque converter and upstream of the oil cooler increases as pressure at an entrance of the torque converter increases.
    • 作为离合器控制压力的第一液压回路,在调节加压油之后,将从第一液压泵供给的加压油引导到变速器控制装置,并将作为变矩器操作油的加压油引导到变矩器,并将加压油 油到油冷却器。 通过第二液压回路,来自第二液压泵的加压油被分配到压力调节阀下游的电路部分和安全阀的上游以及转矩转换器下游的电路部分和油冷却器的上游。 流量控制装置改变第二液压回路中的流量比例,使得在扭矩转换器下游的电路部分和油冷却器上游的流量的比例随转矩入口处的压力而增加 转换器增加。
    • 10. 发明申请
    • Engine Control Device for Work Vehicle
    • 工作车辆发动机控制装置
    • US20120004814A1
    • 2012-01-05
    • US13148444
    • 2010-02-09
    • Koji HyodoHiroki NakazonoAtsushi ShimazuIsamu AokiHiroyuki Azuma
    • Koji HyodoHiroki NakazonoAtsushi ShimazuIsamu AokiHiroyuki Azuma
    • B60K20/00G06F19/00
    • F02D29/00F02D41/021F02D41/023F02D2400/12F16H59/72F16H59/78F16H61/12F16H61/16Y02T10/148
    • An engine control device for work vehicle includes: a rotation speed control device that controls a rotation speed of an engine according to an operation amount of an accelerator pedal; a travel drive device that transmits a rotation of the engine to wheels through a torque converter and a transmission; a water temperature detection device that detects a physical quantity correlated with a cooling water temperature of the engine; a speed ratio detection device that detects a speed ratio of an input shaft and an output shaft of the torque converter; and a speed limit device that limits a maximum rotation speed of the engine to a limit rotation speed which is lower than an upper limit value if the water temperature detection device detects an overheat state in which the cooling water temperature is equal to or higher than a predetermined value when the speed ratio detected by the speed ratio detection device is in a limit speed ratio region where a torque converter efficiency is equal to or less than a predetermined value.
    • 一种用于作业车辆的发动机控制装置,包括:转速控制装置,其根据加速踏板的操作量来控制发动机的转速; 行驶驱动装置,其通过变矩器和变速器将发动机的旋转传递到车轮; 水温检测装置,其检测与所述发动机的冷却水温度相关的物理量; 变速比检测装置,其检测所述变矩器的输入轴和输出轴的速比; 以及速度限制装置,如果水温检测装置检测到冷却水温度等于或高于上限值的过热状态,则将发动机的最大转速限制在低于上限值的极限转速 当由速比检测装置检测到的速度比处于液力变矩器效率等于或小于预定值的极限转速区域时的预定值。