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METHOD FOR WHEN NECESSARY AUTOMATICALLY LIMITING A PRESSURE IN A HYDRAULIC SYSTEM DURING OPERATION

  • US 20100263735A1
  • Filed: 12/12/2007
  • Published: 10/21/2010
  • Est. Priority Date: 12/12/2007
  • Status: Active Grant
First Claim
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1. Method for automatically limiting a pressure generated during operation in a hydraulic system when needed, system being adapted to deliver a pressurized hydraulic fluid to at least one actuator arranged to perform a work function by means of an implement of a working machine, wherein the method comprises the steps of:

  • detecting a pressure in at least one position in the system;

    comparing the detected pressure value, or a value associated with the detected pressure value, with a first predetermined limit value; and

    opening a flow communication between the actuator and a tank via a first conduit if the detected pressure value, or the value associated with the detected pressure value/exceeds the predetermined limit value,detecting an operating parameter which is indicative of a position of the implement and determining the limit value on the basis of the detected operating parameter.

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