Patent ID: 8286652
Filing Date: 2012-10-16
Classification: E02F,F15B,Y10T

Abstract:
1. A method of limiting jerk in a hydraulic system of a machine, the method comprising: continuously measuring an output pressure of a hydraulic fluid over time from a valve of the hydraulic system to determine an output pressure rate; inputting a command to request a change in a flow of the hydraulic fluid through the valve from an initial flow rate to a requested flow rate; defining a value for a maximum pressure rate that is dependent upon the measured output pressure of the hydraulic fluid from the valve; comparing the determined output pressure rate to the maximum pressure rate; and adjusting the flow of the hydraulic fluid from the initial flow rate to an allowed flow rate different than the requested flow rate when the determined output pressure rate of the hydraulic fluid is greater than the maximum pressure rate to limit jerk in the hydraulic system.