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1.发明申请公开(公告)号：US20140330488A1
公开(公告)日：2014-11-06
申请号：US14333980
申请日：2014-07-17
摘要： A materials handling vehicle is provided comprising: a support structure including a fixed member; a movable assembly coupled to the support structure; a hydraulic system; and a control system. The support structure further comprises lift apparatus to effect movement of the movable assembly relative to the support structure fixed member. The lift apparatus includes at least one ram/cylinder assembly. The hydraulic system includes a motor, a pump coupled to the motor to supply a pressurized fluid to the at least one ram/cylinder assembly, and at least one electronically controlled valve associated with the at least one ram/cylinder assembly. The control structure may estimate a speed of the movable assembly from a speed of the motor and control the operation of the at least one valve using the estimated movable assembly speed.
摘要翻译： 提供了一种材料搬运车辆，包括：支撑结构，包括固定构件; 耦合到所述支撑结构的可移动组件; 液压系统; 和控制系统。 支撑结构还包括提升装置，以实现可移动组件相对于支撑结构固定构件的运动。 提升装置包括至少一个压头/缸组件。 液压系统包括电动机，耦合到电动机的泵，以向至少一个压头/汽缸组件供应加压流体，以及与至少一个压头/汽缸组件相关联的至少一个电子控制阀。 控制结构可以从电动机的速度估计可移动组件的速度，并且使用估计的可移动组件速度来控制至少一个阀的操作。
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2.发明申请MATERIALS HANDLING VEHICLE ESTIMATING A SPEED OF A MOVABLE ASSEMBLY FROM A LIFT MOTOR SPEED 审中-公开物料搬运车辆从升降机速度估计可移动组件的速度公开(公告)号：US20150344278A1
公开(公告)日：2015-12-03
申请号：US14807051
申请日：2015-07-23
摘要： A materials handling vehicle is provided comprising: a support structure including a first member; a movable assembly coupled to the support structure; a hydraulic system; and a control system. The support structure further comprises lift apparatus to effect movement of the movable assembly relative to the support structure first member. The lift apparatus includes at least one ram/cylinder assembly. The hydraulic system includes a motor, a pump coupled to the motor to supply a pressurized fluid to the at least one ram/cylinder assembly, and at least one electronically controlled valve associated with the ram/cylinder assembly. The control structure may estimate a speed of the movable assembly from a speed of the motor and may control the operation of the at least one valve using a comparison involving the estimated movable assembly speed and a determined speed, and the comparison may not involve use of an operator commanded speed.
摘要翻译： 提供了一种材料搬运车辆，包括：支撑结构，包括第一构件; 耦合到所述支撑结构的可移动组件; 液压系统; 和控制系统。 支撑结构还包括提升装置，以实现可移动组件相对于支撑结构第一构件的移动。 提升装置包括至少一个压头/缸组件。 液压系统包括电动机，联接到电动机的泵，以将加压流体供应到至少一个压头/汽缸组件，以及与压头/汽缸组件相关联的至少一个电子控制阀。 控制结构可以从电动机的速度估计可移动组件的速度，并且可以使用涉及估计的可移动组件速度和确定的速度的比较来控制至少一个阀的操作，并且该比较可以不涉及使用 操作员指挥速度。
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3.发明授权公开(公告)号：US09751740B2
公开(公告)日：2017-09-05
申请号：US14807051
申请日：2015-07-23
摘要： A materials handling vehicle is provided comprising: a support structure including a first member; a movable assembly coupled to the support structure; a hydraulic system; and a control system. The support structure further comprises lift apparatus to effect movement of the movable assembly relative to the support structure first member. The lift apparatus includes at least one ram/cylinder assembly. The hydraulic system includes a motor, a pump coupled to the motor to supply a pressurized fluid to the at least one ram/cylinder assembly, and at least one electronically controlled valve associated with the ram/cylinder assembly. The control structure may estimate a speed of the movable assembly from a speed of the motor and may control the operation of the at least one valve using a comparison involving the estimated movable assembly speed and a determined speed, and the comparison may not involve use of an operator commanded speed.
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4.发明授权Materials handling vehicle estimating a speed of a movable assembly from a lift motor speed 有权材料处理车辆从提升马达速度估计可移动组件的速度公开(公告)号：US08924103B2
公开(公告)日：2014-12-30
申请号：US14333895
申请日：2014-07-17
摘要： A materials handling vehicle is provided including: a support structure including a fixed member; a movable assembly coupled to the support structure; a hydraulic system; and a control system. The support structure further includes lift apparatus to effect movement of the movable assembly relative to the support structure fixed member. The lift apparatus includes at least one ram/cylinder assembly. The hydraulic system includes a motor, a pump coupled to the motor to supply a pressurized fluid to the at least one ram/cylinder assembly, and at least one electronically controlled valve associated with the at least one ram/cylinder assembly. The control structure may estimate a speed of the movable assembly from a speed of the motor and calculate an updated pump volumetric efficiency using the estimated movable assembly speed and a determined movable assembly speed.
摘要翻译： 提供一种材料搬运车辆，包括：支撑结构，包括固定构件; 耦合到所述支撑结构的可移动组件; 液压系统; 和控制系统。 支撑结构还包括提升装置，以实现可移动组件相对于支撑结构固定构件的移动。 提升装置包括至少一个压头/缸组件。 液压系统包括电动机，耦合到电动机的泵，以向至少一个压头/汽缸组件供应加压流体，以及与至少一个压头/汽缸组件相关联的至少一个电子控制阀。 控制结构可以从电动机的速度估计可移动组件的速度，并使用估计的可移动组件速度和确定的可移动组件速度来计算更新的泵体积效率。
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5.发明授权公开(公告)号：US09394151B2
公开(公告)日：2016-07-19
申请号：US14333980
申请日：2014-07-17
摘要： A materials handling vehicle is provided comprising: a support structure including a fixed member; a movable assembly coupled to the support structure; a hydraulic system; and a control system. The support structure further comprises lift apparatus to effect movement of the movable assembly relative to the support structure fixed member. The lift apparatus includes at least one ram/cylinder assembly. The hydraulic system includes a motor, a pump coupled to the motor to supply a pressurized fluid to the at least one ram/cylinder assembly, and at least one electronically controlled valve associated with the at least one ram/cylinder assembly. The control structure may estimate a speed of the movable assembly from a speed of the motor and control the operation of the at least one valve using the estimated movable assembly speed.
摘要翻译： 提供了一种材料搬运车辆，包括：支撑结构，包括固定构件; 耦合到所述支撑结构的可移动组件; 液压系统; 和控制系统。 支撑结构还包括提升装置，以实现可移动组件相对于支撑结构固定构件的运动。 提升装置包括至少一个压头/缸组件。 液压系统包括电动机，耦合到电动机的泵，以向至少一个压头/汽缸组件供应加压流体，以及与至少一个压头/汽缸组件相关联的至少一个电子控制阀。 控制结构可以从电动机的速度估计可移动组件的速度，并且使用估计的可移动组件速度来控制至少一个阀的操作。
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6.发明授权Materials handling vehicle measuring electric current flow into/out of a hydraulic system motor 有权材料处理车辆测量电流流入/流出液压系统电机公开(公告)号：US09296598B2
公开(公告)日：2016-03-29
申请号：US14333944
申请日：2014-07-17
摘要： A materials handling vehicle is provided comprising: a support structure including a fixed member; a movable assembly coupled to the support structure; a hydraulic system; and a control system. The support structure further comprises lift apparatus to effect movement of the movable assembly relative to the support structure fixed member. The lift apparatus includes at least one ram/cylinder assembly. The hydraulic system includes a motor, a pump coupled to the motor to supply a pressurized fluid to the at least one ram/cylinder assembly, and at least one electronically controlled valve associated with the at least one ram/cylinder assembly. The control structure may measure an electric current flow into and/or out of the hydraulic system motor and reduce an operating speed of the hydraulic system motor if the electric current flow into and/or out of the hydraulic system motor is greater than or equal to a predetermined threshold value.
摘要翻译： 提供了一种材料搬运车辆，包括：支撑结构，包括固定构件; 耦合到所述支撑结构的可移动组件; 液压系统; 和控制系统。 支撑结构还包括提升装置，以实现可移动组件相对于支撑结构固定构件的运动。 提升装置包括至少一个压头/缸组件。 液压系统包括电动机，耦合到电动机的泵，以向至少一个压头/汽缸组件供应加压流体，以及与至少一个压头/汽缸组件相关联的至少一个电子控制阀。 控制结构可以测量进入和/或离开液压系统马达的电流，并且如果电流流入和/或流出液压系统马达，则降低液压系统马达的运行速度大于或等于 预定的阈值。
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7.发明申请公开(公告)号：US20140326542A1
公开(公告)日：2014-11-06
申请号：US14333944
申请日：2014-07-17
摘要： A materials handling vehicle is provided comprising: a support structure including a fixed member; a movable assembly coupled to the support structure; a hydraulic system; and a control system. The support structure further comprises lift apparatus to effect movement of the movable assembly relative to the support structure fixed member. The lift apparatus includes at least one ram/cylinder assembly. The hydraulic system includes a motor, a pump coupled to the motor to supply a pressurized fluid to the at least one ram/cylinder assembly, and at least one electronically controlled valve associated with the at least one ram/cylinder assembly. The control structure may measure an electric current flow into and/or out of the hydraulic system motor and reduce an operating speed of the hydraulic system motor if the electric current flow into and/or out of the hydraulic system motor is greater than or equal to a predetermined threshold value.
摘要翻译： 提供了一种材料搬运车辆，包括：支撑结构，包括固定构件; 耦合到所述支撑结构的可移动组件; 液压系统; 和控制系统。 支撑结构还包括提升装置，以实现可移动组件相对于支撑结构固定构件的运动。 提升装置包括至少一个压头/缸组件。 液压系统包括电动机，耦合到电动机的泵，以向至少一个压头/汽缸组件供应加压流体，以及与至少一个压头/汽缸组件相关联的至少一个电子控制阀。 控制结构可以测量进入和/或离开液压系统马达的电流，并且如果电流流入和/或流出液压系统马达，则降低液压系统马达的运行速度大于或等于 预定的阈值。
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8.发明申请MATERIALS HANDLING VEHICLE ESTIMATING A SPEED OF A MOVABLE ASSEMBLY FROM A LIFT MOTOR SPEED 有权物料搬运车辆从升降机速度估计可移动组件的速度公开(公告)号：US20140326541A1
公开(公告)日：2014-11-06
申请号：US14333895
申请日：2014-07-17
摘要： A materials handling vehicle is provided including: a support structure including a fixed member; a movable assembly coupled to the support structure; a hydraulic system; and a control system. The support structure further includes lift apparatus to effect movement of the movable assembly relative to the support structure fixed member. The lift apparatus includes at least one ram/cylinder assembly. The hydraulic system includes a motor, a pump coupled to the motor to supply a pressurized fluid to the at least one ram/cylinder assembly, and at least one electronically controlled valve associated with the at least one ram/cylinder assembly. The control structure may estimate a speed of the movable assembly from a speed of the motor and calculate an updated pump volumetric efficiency using the estimated movable assembly speed and a determined movable assembly speed.
摘要翻译： 提供一种材料搬运车辆，包括：支撑结构，包括固定构件; 耦合到所述支撑结构的可移动组件; 液压系统; 和控制系统。 支撑结构还包括提升装置，以实现可移动组件相对于支撑结构固定构件的移动。 提升装置包括至少一个压头/缸组件。 液压系统包括电动机，耦合到电动机的泵，以向至少一个压头/汽缸组件供应加压流体，以及与至少一个压头/汽缸组件相关联的至少一个电子控制阀。 控制结构可以从电动机的速度估计可移动组件的速度，并使用估计的可移动组件速度和确定的可移动组件速度来计算更新的泵体积效率。
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