WO2023100005 - SYSTEM AND METHOD FOR CONTROLLING A HYDRAULIC SUPPLY SYSTEM ON A MOBILE MACHINE
National phase entry:
Publication Number
WO/2023/100005
Publication Date
08.06.2023
International Application No.
PCT/IB2022/060973
International Filing Date
15.11.2022
Title **
[English]
SYSTEM AND METHOD FOR CONTROLLING A HYDRAULIC SUPPLY SYSTEM ON A MOBILE MACHINE
[French]
SYSTÈME ET PROCÉDÉ DE COMMANDE DE SYSTÈME D'ALIMENTATION HYDRAULIQUE D'UNE MACHINE MOBILE
Applicants **
AGCO INTERNATIONAL GMBH
Inventors
REITEMANN, Gabriel
FROMMELT, Benjamin
Priority Data
2117534.4
03.12.2021
GB
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2205 | |
| EPO | Filing, Examination, Granting | 9936 | |
| Japan | Filing, Examination, Granting | 2246 | |
| South Korea | Filing, Examination, Granting | 2254 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
21,381
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
A control system (100) for hydraulic supply system on a tractor includes an electronic load sensing (E-LS) system. The control system is configured to limit the pump supply pressure PSP so that the load sensing pressure LSP reported by at least one valve (CMV, RMV, IMV) does not exceed a pre-defined upper limit of LSP assigned to that valve. Since the LSP reported by a valve is indicative of the pressure at a working port of the valve, monitoring the LSP and limiting the PSP in dependence on LSP can be used to ensure the pressure at the working port does not exceed a permitted value. In an embodiment, the system monitors pressure signals indicative of LSP from a number of valves whilst increasing the PSP to meet a hydraulic demand and stops increasing the PSP if the LSP of any of the valves exceeds a respective pre-defined upper limit.[French]
L'invention concerne un système et un procédé de commande de système hydraulique d'une machine mobile. Un système de commande (100) d'un système d'alimentation hydraulique d'un tracteur comprend un système de détection de charge électronique (E-LS). Le système de commande est configuré pour limiter la pression d'alimentation de pompe (PSP) de sorte que la pression de détection de charge (LSP) rapportée par au moins un clapet (CMV, RMV, IMV) ne dépasse pas une limite haute prédéfinie de LSP attribuée à ce clapet. Du fait que la LSP rapportée par un clapet représente la pression à l'orifice de travail du clapet, il est possible d'utiliser la surveillance de la LSP et la limitation de la PSP en fonction de la LSP pour garantir le fait que la pression ne dépasse pas une valeur autorisée au niveau de l'orifice de travail. Selon un mode de réalisation, le système surveille des signaux de pression indiquant une LSP à partir d'un certain nombre de clapets tout en augmentant la PSP pour satisfaire une demande hydraulique et interrompt l'augmentation de la PSP si la LSP d'un clapet quelconque parmi les clapets dépasse une limite haute prédéfinie respective.