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    • 5. 发明授权
    • Electrohydraulic pressure supply unit with variable-displacement pump and controllable electric device
    • 具有可变排量泵和可控电气装置的电液压供应装置
    • US06347516B1
    • 2002-02-19
    • US09607963
    • 2000-06-30
    • Gerald BolzMichael JürgingReinhard Orthmann
    • Gerald BolzMichael JürgingReinhard Orthmann
    • F16D3102
    • F04B49/06F04B2205/07F04B2205/09
    • An electrohydraulic pressure supply unit involving the joint operation of two energy converters, which can be adjusted independent of each other, including an electric motor with speed control that drives a variable displacement pump with a variable displacement volume. The electric motor converts electrical output (loss-encumbered), into mechanical output, meaning into speed n and torque T. The pump then converts this mechanical output (also loss-encumbered) into hydraulic output. The hydraulic output is determined by the pressure difference &Dgr;p across the pump and the volume flow Q. The pressure difference &Dgr;p generally is impressed by the consumer or load on the system. The volume flow Q is the result of the displacement volume V and the motor speed n. The torque T, which must be generated by the motor, is derived from the displacement volume V and the pressure differential &Dgr;p. During the conversion from hydraulic output to mechanical output, the displacement volume V determines the distribution of the output to the speed n of the motor and the torque T. The current I flowing through the electric motor is primarily determined by the torque T while the voltage U is primarily influenced by the motor speed n. The volume flow supplied by the electrohydraulic pressure supply unit is essentially adjusted by controlling the speed adjustment of the electric motor. The speed of the electric drive motor in this case can essentially be adjusted independent of the displacement volume of the variable displacement pump.
    • 一种电动液压供应单元,涉及两个能量转换器的联合操作,这两个能量转换器可以彼此独立地调节,包括具有驱动具有可变排量体积的可变排量泵的速度控制的电动机。 电动机将电气输出(损失保留)转换为机械输出,意味着速度n和转矩T.然后,泵将该机械输出(也称为损失保护)转换为液压输出。 液压输出由泵上的压力差DELTAp和体积流量Q决定。压力差DELTAp通常由使用者或系统上的负载施加压力。 体积流量Q是排量体积V和电机速度n的结果。 必须由电机产生的转矩T是从排量V和压差DELTAp得出的。 在从液压输出到机械输出的转换期间,排量体积V决定了输出对马达转速n和扭矩T的分配。流过电动机的电流I主要由转矩T决定,而电压 U主要受电机转速n的影响。 由电动液压供给装置提供的体积流量通过控制电动机的速度调节来进行调节。 在这种情况下,电动马达的转速基​​本上可以根据可变排量泵的排量而独立调整。
    • 6. 发明授权
    • Multiple-surface sensor control for a traveling wave motor
    • 用于旅行波形电机的多表面传感器控制
    • US5198714A
    • 1993-03-30
    • US720827
    • 1991-07-15
    • Bernd SalomonReinhard Orthmann
    • Bernd SalomonReinhard Orthmann
    • H02N2/00H01L41/04H01L41/09H02N2/14H02N2/16
    • H02N2/16H02N2/14
    • In an apparatus for evaluating and controlling the driving state of a traveling wave motor composed of a stator equipped with an elastic vibrating body and an excitation system composed of a plurality of segments and generating ultrasound vibrations as well as a rotor that is in contact under pressure with the stator in a surface region and is equipped with a sensor device that is disposed at the vibrating body or at the excitation system, the signals of the sensor device are fed to the regulating circuit of an evaluation and control unit for controlling the excitation system. The sensor device includes at least two sensor surfaces which are attached to the vibrating body or to the excitation system and the signals corresponding to the sensor surfaces are fed separately to the evaluation and control unit.
    • PCT No.PCT / EP90 / 01973。 371日期1991年7月15日 102(e)日期1991年7月15日PCT 1990年11月19日PCT PCT。 出版物WO91 / 08594 日期:1991年6月13日。在用于评估和控制由具有弹性振动体的定子和由多个段组成的激励系统构成的行波电动机的驱动状态的装置中,并且产生超声波振动以及 在压力下与定子在表面区域接触的转子,并且配备有设置在振动体或激励系统处的传感器装置,传感器装置的信号被馈送到调节电路的评估和 用于控制励磁系统的控制单元。 传感器装置包括至少两个附接到振动体或激励系统的传感器表面,并且与传感器表面相对应的信号分别供给评估和控制单元。