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    • 1. 发明授权
    • Working vehicle and hydraulic fluid amount control method for working vehicle
    • 工作车辆和液压油量控制方法
    • US09085874B2
    • 2015-07-21
    • US12452898
    • 2008-07-22
    • Yoshiaki Saito
    • Yoshiaki Saito
    • G06F7/70G06F19/00G06G7/00G06G7/76E02F9/22
    • E02F9/2242E02F9/2079E02F9/2235E02F9/2253
    • A working vehicle has improved operability and working efficiency during loading. A loading operation detector detects the start of a loading operation based on at least two of the following: whether a boom lever has been operated in its raise direction; whether a boom is in an attitude set in advance; whether the boom angle is less than an upper limit; whether a speed ratio when a brake is OFF is greater than or equal to a predetermined value; whether a predetermined speed stage is set; whether the traveling range has been changed from reverse to forward; and whether the angular velocity of the boom is greater than or equal to a predetermined value. By increasing the discharge amount of a loader pump, and/or by supplying hydraulic fluid to a boom cylinder from a switch pump, a hydraulic fluid amount increase controller supplies more hydraulic fluid to the boom.
    • 工作车辆在加载过程中提高了操作性和工作效率。 装载操作检测器基于以下中的至少两个来检测装载操作的开始:吊臂杆是否在其升高方向上被操作; 蓬勃发展是否处于提前态度? 悬臂角度是否小于上限; 制动器OFF时的速比是否大于或等于预定值; 是否设定了预定的速度级; 行驶距离是否从反向改变到前进; 以及起重臂的角速度是否大于或等于预定值。 通过增加装载机泵的排出量和/或通过从开关泵向动臂缸提供液压流体,液压油量增加控制器向动臂供应更多的液压流体。
    • 2. 发明授权
    • Construction vehicle provided with work equipment
    • 施工车辆配有工作设备
    • US08571763B2
    • 2013-10-29
    • US13255340
    • 2010-03-11
    • Yoshiaki SaitoMasatsugu Numazaki
    • Yoshiaki SaitoMasatsugu Numazaki
    • G06F7/70
    • E02F9/2253B60W10/06B60W10/30B60W30/188B60W2550/142B60Y2200/41B60Y2200/415E02F9/24F16D48/10F16D2500/1112F16D2500/5104F16D2500/70406
    • The construction machine includes a propulsion device, the working equipment, and a controller that controls the propulsion device. The controller performs attitude determination of determining whether or not the present attitude of the working equipment corresponds to a predetermined attitude, performs propulsion determination of determining whether or not the present propulsive operation of the propulsion device corresponds to a predetermined propulsive operation performed while performing a predetermined construction task that applies an over load to the working equipment, performs driving force determination of determining whether or not the magnitude of the present propelling force corresponds to a predetermined magnitude at which an over load is applied to the working equipment, and reduces the propelling force outputted from the propulsion device when the results of attitude determination, propulsion determination, and driving force determination are affirmative.
    • 施工机械包括推进装置,工作设备和控制推进装置的控制器。 控制器执行姿势确定,确定工作设备的当前姿态是否对应于预定姿态,执行推进确定,以确定推进装置的当前推进操作是否对应于执行预定的行驶期间执行的预定推进操作 对工作设备施加过载的施工任务,执行确定当前推进力的大小是否对应于对作业设备施加过载的预定大小的驱动力确定,并且降低推进力 当姿态确定,推进确定和驱动力确定的结果是肯定的时,从推进装置输出。
    • 4. 发明授权
    • Working vehicle, control device for working vehicle, and control method for working vehicle
    • 工作车辆,工作车辆控制装置和工作车辆的控制方法
    • US08463509B2
    • 2013-06-11
    • US12736162
    • 2009-03-11
    • Yoshiaki Saito
    • Yoshiaki Saito
    • G06F7/70
    • E02F9/2235B60W10/08B60W2510/0638B60W2520/10B60W2540/10B60W2540/12B60W2540/16B60W2710/0644B60Y2200/415E02F9/2083
    • A working vehicle in which an output from an engine is distributed to a traveling system and a hydraulic device system includes a loading operation detection unit that detects whether a loading operation using a work equipment is being performed, a clutch contained in the traveling system and connected to a distributor, a maximum output characteristic control unit that selects a second engine maximum output characteristic from among first and second maximum output characteristics when it is detected that the loading operation is being performed, and a hydraulic oil amount control unit that decreases a clutch pressure of the clutch when it is detected that the loading operation is being performed. In the first engine maximum output characteristic, a maximum output torque in a predetermined engine revolution speed range is lower than that in the second engine maximum output characteristic.
    • 将来自发动机的输出分配给行驶系统的工作车辆和液压装置系统包括:装载作业检测部,其检测是否正在进行使用了作业装置的装载作业,所述离合器包含在所述行驶系统中并被连接 分配器,最大输出特性控制单元,当检测到正在执行装载操作时,从第一和第二最大输出特性中选择第二发动机最大输出特性;以及液压油量控制单元,其降低离合器压力 当检测到正在执行装载操作时,该离合器的位置。 在第一发动机最大输出特性中,预定发动机转速范围内的最大输出转矩低于第二发动机最大输出特性。