An actuation pressure to actuate one or more hydraulic actuators may be determined based on a load on the one or more hydraulic actuators of a robotic device. Based on the determined actuation pressure, a pressure rail from among a set of pressure rails at respective pressures may be selected. One or more valves may connect the selected pressure rail to a metering valve. The hydraulic drive system may operate in a discrete mode in which the metering valve opens such that hydraulic fluid flows from the selected pressure rail through the metering valve to the one or more hydraulic actuators at approximately the supply pressure. Responsive to a control state of the robotic device, the hydraulic drive system may operate in a continuous mode in which the metering valve throttles the hydraulic fluid such that the supply pressure is reduced to the determined actuation pressure.


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    Titel :

    Discretized Valve State Control For Multi-Level Hydraulic Systems


    Beteiligte:

    Erscheinungsdatum :

    2017-07-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B25J Manipulatoren , MANIPULATORS / B62D MOTOR VEHICLES , Motorfahrzeuge / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen



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    Freier Zugriff

    Marine hydraulic valve control systems

    Burnison, R.A. | Tema Archiv | 1983



    MANUFACTURING METHOD OF HYDRAULIC CONTROL VALVE, HYDRAULIC CONTROL VALVE, AND HYDRAULIC POWER STEERING DEVICE

    FUJIMOTO MASATOSHI / BANDO YUUKI | Europäisches Patentamt | 2015

    Freier Zugriff

    On the Minimality of the Discretized Systems

    Kondo, R. | British Library Online Contents | 1994