Steering device for construction/transport/farm machine
US-10611403-B2 · Apr 7, 2020 · US
Method for controlling a hydraulic system of a working machine
US9108670B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9108670-B2 |
| Application number | US-200913513391-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2009 |
| Priority date | Dec 2, 2009 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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Abstract
Official abstract text for this publication.
A method is provided for controlling a hydraulic system of a working machine, which hydraulic system includes a first hydraulic machine for providing hydraulic fluid to a first actuator of the working machine, and a second hydraulic machine for providing hydraulic fluid to a second actuator of the working machine and for providing hydraulic fluid to the first actuator. The method includes using a first control mode, and in the first control mode allowing a flow of hydraulic fluid from the second hydraulic machine to the second actuator, wherein the pump pressure of the second hydraulic machine is selected based on the load pressure of the second actuator independently of the load pressure of the first actuator. The method further includes using a second control mode provided that the requested flow to the first actuator exceeds a predetermined threshold value, and in the second control mode allowing a flow of hydraulic fluid from the second hydraulic machine to the first actuator, wherein the pump pressure of the second hydraulic machine is selected based on the highest value of the load pressure of the second actuator and the load pressure of the first actuator.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for controlling a hydraulic system of a working machine, the hydraulic system comprising a first hydraulic machine for providing hydraulic fluid to a first actuator of the working machine, and a second hydraulic machine for providing hydraulic fluid to a second actuator of the working machine and for providing hydraulic fluid to the first actuator, the method comprising: using a first control mode, and in the first control mode allowing a flow…
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Classifications
Fixed Constructions · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- B62D5/075Primary
Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9108670B2 cover?
- A method is provided for controlling a hydraulic system of a working machine, which hydraulic system includes a first hydraulic machine for providing hydraulic fluid to a first actuator of the working machine, and a second hydraulic machine for providing hydraulic fluid to a second actuator of the working machine and for providing hydraulic fluid to the first actuator. The method includes using…
- Who is the assignee on this patent?
- Vigholm Bo, Ekvall Andreas, Heybroek Kim, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B62D5/075. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).