Patent ID: 6148254
Filing Date: 2000-11-14
Classification: E02F,G05B

Abstract:
A work machine adapted to be controlled by an operator, comprising:a frame;a plurality of ground engaging devices supporting the frame;an operator compartment supported by the ground engaging devices;an engine operably coupled to the ground engaging devices;a work implement attached to the frame and including a bucket and a thumb; anda work machine control system for controlling the clamping force on an object being held between the bucket and thumb, including:an electronic controller;at least one pressure sensor electrically coupled to the electronic controller and adapted to produce a pressure signal indicative of the pressure applied by the bucket and thumb on an object being held therebetween;an operator control device for producing an operator control signal;a reciprocating device adapted to move the thumb relative to the bucket; andwherein the electronic controller receives the at least one pressure signal, the operator control signal and responsively delivers command signals to the reciprocating device in order to control the pressure applied by the bucket and thumb on an object being held therebetween.