AXIALKOLBENMASCHINE MIT RÜCKFÜHRVORRICHTUNG
    47.
    发明公开
    AXIALKOLBENMASCHINE MIT RÜCKFÜHRVORRICHTUNG 有权
    AXIALKOLBENMASCHINE MITRÜCKFÜHRVORRICHTUNG

    公开(公告)号:EP2145106A1

    公开(公告)日:2010-01-20

    申请号:EP08758514.7

    申请日:2008-05-14

    申请人: Robert Bosch GmbH

    IPC分类号: F04B1/32 F04B49/08 F04B49/00

    摘要: The invention relates to an axial piston machine comprising a pivoting cradle having variable tilt. The axial piston machine has at least one adjustment device extending substantially in the longitudinal direction of the axial piston machine. The axial piston machine further comprises a return element for returning to a position of the pivoting cradle. The return element and the adjustment device are disposed in a plane extending parallel to an axis of rotation of the axial piston machine and perpendicular to a pivoting axis of the pivoting cradle.

    摘要翻译: 本发明涉及一种包括具有可变倾斜度的枢转摇架的轴向活塞机器。 轴向活塞机器具有至少一个大致在轴向活塞机器的纵向方向上延伸的调节装置。 该轴向活塞机器还包括用于返回到枢转支架的位置的返回元件。 返回元件和调节装置设置在平行于轴向活塞机器的旋转轴线并垂直于枢转摇架的枢转轴线延伸的平面中。

    PUMP TORQUE CONTROL DEVICE FOR HYDRAULIC CONSTRUCTION MACHINE
    49.
    发明公开
    PUMP TORQUE CONTROL DEVICE FOR HYDRAULIC CONSTRUCTION MACHINE 审中-公开
    PU UNGÜR INE INE INE INE INE INE INE INE INE INE INE INE INE INE INE

    公开(公告)号:EP2112279A1

    公开(公告)日:2009-10-28

    申请号:EP08710646.4

    申请日:2008-01-30

    摘要: A pump torque control system is capable of preventing from hunting due to interference between speed sensing control and control on an engine speed of a prime mover when the temperature of a hydraulic fluid is low, and performing appropriate pump torque control.
    A regulator 31 controls displacement volumes of hydraulic pumps 2 and 3 to ensure that the total absorption torque of the hydraulic pumps 2 and 3 does not exceed a set maximum absorption torque. An engine sensor 33, a hydraulic fluid temperature sensor 34, a solenoid proportional valve 35, and a controller 23 perform the speed sensing control to ensure that the maximum absorption torque of the hydraulic pumps 2 and 3 is reduced. The maximum absorption torque is set in the regulator 31 based on a deviation between a target engine speed of the prime mover 1 and an actual engine speed of the prime mover 1. A second modification factor calculating section 45 and a control gain modifying section 49, which are included in the controller 23, 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: 泵转矩控制系统能够防止在液压流体的温度低时对速动检测控制和原动机的发动机转速的控制之间的干扰进行回波,并且执行适当的泵转矩控制。 调节器31控制液压泵2和3的排量,以确保液压泵2和3的总吸收扭矩不超过设定的最大吸收扭矩。 发动机传感器33,液压油温度传感器34,电磁比例阀35和控制器23进行速度检测控制,以确保液压泵2和3的最大吸收转矩减小。 基于原动机1的目标发动机转速与原动机1的实际发动机转速之间的偏差,在调节器31中设定最大吸收转矩。第二变更系数计算部45和控制增益修正部49, 包括在控制器23中的控制增益基于由液压温度传感器34检测的值来改变速度检测控制的控制增益,以确保随着液压流体的温度降低控制增益而减小。