Method For Controlling A Machine

Abstract

The present disclosure is related to a method of controlling a machine having an engine, a hydraulic pump and an operator input device. The method includes storing operation data corresponding to multiple operating parameters of the machine over a predetermined number of working cycles. The operation data is compared with respective predetermined ranges of operating parameters. Further, the machine in controlled in a normal mode of operation if the stored operation data lies outside the respective predetermined ranges. Further, the machine is controlled in an override mode if the stored operation data lies within the predetermined ranges. In the override mode, the machine is controlled based on estimated values of the operating parameters. Further, the method includes switching to the normal mode if a current operator input lies outside a predetermined range of the operator input.

What is claimed is: 
     
         1 . A method of controlling a machine having an engine, a hydraulic pump drivably coupled to the engine, an operator input device configured to receive an operator input, the method comprising:
 determining a plurality of operating parameters of the machine, wherein the plurality of operating parameters comprise at least a speed of the engine, a pressure of the hydraulic pump, and the operator input;   storing operation data over a predetermined number of working cycles of the machine, wherein the operation data corresponds to each of the operating parameters of the machine;   comparing the stored operation data corresponding to each of the operating parameters with respective predetermined ranges of the operating parameters;   controlling the machine in a normal mode of operation if the stored operation data lies outside the respective predetermined ranges, wherein in the normal mode of operation, the engine and the hydraulic pump are controlled based on the operator input;   estimating values of at least the operator input, the speed of the engine and the pressure of the pump based on the stored operation data if the stored operation data lies within the respective predetermined ranges;   switching to an override mode of operation of the machine, wherein in the override mode, the engine and the pump are controlled based on the estimated values of the operator input, the speed of the engine and the pressure of the hydraulic pump;   comparing a current operator input with a predetermined range of the operator input;   continuing to control the machine in the override mode if the current operator input lies within the predetermined range; and   switching to a normal mode of operation of the machine if the current operator input lies outside the predetermined range.