SYSTEM AND METHOD FOR MANAGING MACHINE POWER SYSTEM
    2.
    发明公开
    SYSTEM AND METHOD FOR MANAGING MACHINE POWER SYSTEM 审中-公开
    系统VERFAHREN ZUR VERWALTUNG EINES MASCHINENENERGIESYSTEMS

    公开(公告)号:EP3126582A1

    公开(公告)日:2017-02-08

    申请号:EP15768088.5

    申请日:2015-02-18

    申请人: Caterpillar Inc.

    IPC分类号: E02F9/22 E02F9/02

    摘要: A power system for a machine is provided. The power system includes an operator interface for entering an operator command relating to one or more functions of the machine. The power system includes a hydraulic pump and an engine configured to provide power to the hydraulic device. A controller is in communication with the operator interface, the hydraulic device and the engine. The controller is configured to consider operator skill level information relating to a skill level of the operator of the machine and to determine at least one desired power system operating parameter based on the operator command and the operator skill level information and to adjust at least one of the hydraulic pump and the engine based on the desired power system operating parameter.

    摘要翻译: 提供了一种用于机器的电力系统。 电力系统包括用于输入与机器的一个或多个功能有关的操作者命令的操作者界面。 电力系统包括液压泵和被配置为向液压装置提供动力的发动机。 控制器与操作界面,液压装置和发动机相通。 控制器被配置为考虑与机器的操作者的技能水平相关的操作者技能水平信息,并且基于操作员命令和操作员技能等级信息来确定至少一个期望的电力系统操作参数,并且调整至少一个 液压泵和发动机基于所需的动力系统运行参数。

    VARIABLE PRESSURE LIMITING FOR VARIABLE DISPLACEMENT PUMPS
    3.
    发明公开
    VARIABLE PRESSURE LIMITING FOR VARIABLE DISPLACEMENT PUMPS 审中-公开
    VARIABLE DRUCKBEGRENZUNGFÜRPUMPEN MIT VARIABLERVERDRÄNGUNG

    公开(公告)号:EP3122946A1

    公开(公告)日:2017-02-01

    申请号:EP15770314.1

    申请日:2015-02-19

    申请人: Caterpillar Inc.

    IPC分类号: E02F9/22

    摘要: Method of controlling multiple variable displacement hydraulic pumps (36, 40) determined relative to operator commands. If non-second-pump-dominated command, a respective adjusted displacement request is determined based upon the lesser of the operator requested torque limited displacement and an adjusted torque limited displacement that calculated based upon and the torque limited displacement of the respective pump and a scaling factor calculated based upon the first relief valve set pressure and respective pump pressure. If second-pump-dominated command, the set pressure of a relief valve associated with one of the pumps is instead utilized in calculating the scaling factor in the above strategy.

    摘要翻译: 控制多个可变排量液压泵相对于操作者指令确定的方法。 如果以非二次泵为主的命令,则基于操作者所要求的扭矩限制位移和基于相应泵的扭矩限制位移计算的调整的扭矩限制位移和缩放比例 基于第一安全阀设定压力和相应泵压力计算的系数。 如果以二泵为主的指令,则在上述策略中计算缩放因子时,代替使用与其中一个泵相关的溢流阀的设定压力。