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1. WO2021066892 - DUAL ARCHITECTURE FOR AN ELECTRO-HYDRAULIC DRIVE SYSTEM, MACHINE AND METHOD FOR CONTROLLING A MACHINE WITH AN FOR AN ELECTRO-HYDRAULIC DRIVE SYSTEM

Publication Number WO/2021/066892
Publication Date 08.04.2021
International Application No. PCT/US2020/036780
International Filing Date 09.06.2020
IPC
E02F 9/20 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
20Drives; Control devices
E02F 9/22 2006.01
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
20Drives; Control devices
22Hydraulic or pneumatic drives
CPC
E02F 9/2075
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
20Drives; Control devices
2058Electric or electro-mechanical or mechanical control devices of vehicle sub-units
2062Control of propulsion units
2075of the hybrid type
E02F 9/2217
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
20Drives; Control devices
22Hydraulic or pneumatic drives
2217with energy recovery arrangements, e.g. using accumulators, flywheels
E02F 9/2242
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
20Drives; Control devices
22Hydraulic or pneumatic drives
2221Control of flow rate; Load sensing arrangements
2239using two or more pumps with cross-assistance
2242including an electronic controller
E02F 9/2289
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
20Drives; Control devices
22Hydraulic or pneumatic drives
2278Hydraulic circuits
2289Closed circuit
E02F 9/2292
EFIXED CONSTRUCTIONS
02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
FDREDGING; SOIL-SHIFTING
9Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
20Drives; Control devices
22Hydraulic or pneumatic drives
2278Hydraulic circuits
2292Systems with two or more pumps
Applicants
  • PARKER-HANNIFIN CORPORATION [US]/[US]
Inventors
  • VANDERLAAN, Dale
  • CARL, Blake
  • ZHANG, Hao
Agents
  • SHENOUDA, Amir, M.
Priority Data
62/908,92201.10.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DUAL ARCHITECTURE FOR AN ELECTRO-HYDRAULIC DRIVE SYSTEM, MACHINE AND METHOD FOR CONTROLLING A MACHINE WITH AN FOR AN ELECTRO-HYDRAULIC DRIVE SYSTEM
(FR) ARCHITECTURE DOUBLE POUR SYSTÈME D'ENTRAÎNEMENT ÉLECTRO-HYDRAULIQUE, MACHINE ET PROCÉDÉ DE COMMANDE D'UNE MACHINE DOTÉE D'UN SYSTÈME D'ENTRAÎNEMENT ÉLECTRO-HYDRAULIQUE
Abstract
(EN)
An example hydraulic system includes a hydraulic actuator; a pump driven by an electric motor and having an inlet port and an outlet port; a boost flow line configured to provide boost fluid flow or receive excess fluid flow; a reservoir fluid line fluidly coupled to a reservoir; and a valve assembly configured to operate in a plurality of states to allow the pump to operate in a closed-circuit configuration in which fluid discharged from the hydraulic actuator is provided to the inlet port of the pump or an open-circuit configuration in which fluid discharged from the hydraulic actuator is provided to the reservoir.
(FR)
L'invention concerne un système hydraulique donné à titre d'exemple qui comprend un actionneur hydraulique ; une pompe entraînée par un moteur électrique et ayant un orifice d'entrée et un orifice de sortie ; une conduite d'écoulement forcé conçue pour fournir un écoulement de fluide forcé ou recevoir un écoulement de fluide en excès ; une conduite de fluide de réservoir couplée de manière fluidique à un réservoir ; et un ensemble vanne conçu pour fonctionner dans une pluralité d'états afin de permettre à la pompe de fonctionner dans une configuration de circuit fermé dans laquelle le fluide évacué de l'actionneur hydraulique est fourni à l'orifice d'entrée de la pompe ou à une configuration de circuit ouvert dans laquelle le fluide évacué de l'actionneur hydraulique est fourni au réservoir.
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