Hydraulic system and a control system for the same
Номер патента: EP3695123A1
Опубликовано: 19-08-2020
Автор(ы): Ari LAPPALAINEN, Jussi MÄKITALO, Mika SAHLMAN, Peter Stambro
Принадлежит: NORRHYDRO OY
Опубликовано: 19-08-2020
Автор(ы): Ari LAPPALAINEN, Jussi MÄKITALO, Mika SAHLMAN, Peter Stambro
Принадлежит: NORRHYDRO OY
Реферат: A hydraulic system comprising: a pressure line (40); a pump (12); an actuator (22); a valve device (38) configured to control the flow of pressurized hydraulic fluid to the actuator (22); an electronic control unit (30) configured to control the valve device (38) by a control signal (32) proportional to the desired speed of the actuator (10) at any given time; a pressure accumulator (26) capable of supplying, together with the pump (12), pressurized hydraulic fluid for moving the actuator (22); a sensor device (34, 36) configured to measure, directly or indirectly, the amount of pressurized hydraulic fluid in the pressure accumulator (26) at any given time; setting devices configured to set a setting signal (50) to be proportional with the desired speed of the actuator (22) at any given time. The electronic control unit (30) is configured to restrict the targeted speed of the actuator (22) not to exceed a predetermined maximum speed which is proportional to the amount of pressurized hydraulic fluid in the pressure accumulator (26). In an example, said sensor device (34, 36) is configured to measure the pressure or amount of hydraulic fluid in the pressure accumulator (26). In an example, the system is provided in a crane which may be included in a machine.
Automated calibration system and calibration method for flexible robot actuator
Номер патента: US12064884B2. Автор: Aiguo SONG,Huijun Li,Baoguo XU,Hong Zeng,Jianwei LAI. Владелец: SOUTHEAST UNIVERSITY. Дата публикации: 2024-08-20.