AUTOMATIC LEVELING CONTROL SYSTEM

摘要

An automatic leveling control system for a machine having a work attachment adapted for leveling as the machine is propelled about a worksite is provided. A single laser receiver is mounted to one of two lift arms of the machine. The laser receiver is configured to receive a laser signal from a laser plane generator and to provide a height signal. A tilt sensor is mounted to a work attachment mounting structure and is configured to sense a tilt angle of the work attachment mounting structure and to provide a tilt angle signal and a lateral tilt signal in dependence on lateral tilt of the machine. A controller is configured for generating a control signal based on the height signal, the tilt angle signal and the lateral tilt signal and for communicating the control signal to the machine to adjust at least one of a height of the lift arms and the tilt angle of the work attachment mounting structure such that a grading edge of the work attachment is maintained at elevation as the machine is propelled about the worksite.

主权项

1. An automatic leveling control system for a machine having a work attachment adapted for leveling as the machine is propelled about a worksite, the system comprising:
a. a single laser receiver mounted to one of two lift arms of the machine, the laser receiver being configured to receive a laser signal from a laser plane generator associated with a predetermined level and to provide a height signal in dependence thereupon; b. a tilt sensor mounted to a work attachment mounting structure, the work attachment mounting structure being pivotally movable mounted to a front end portion of the lift arms and having the work attachment mounted thereto, the tilt sensor being configured to sense a tilt angle of the work attachment mounting structure and to provide a tilt angle signal in dependence thereupon, the tilt sensor further being configured to sense a lateral tilt of the machine and to provide a lateral tilt signal in dependence thereupon; c. a controller connected to the laser receiver and the tilt sensor, the controller being configured for generating a control signal based on the height signal, the tilt angle signal and the lateral tilt signal and for communicating the control signal to the machine to adjust at least one of a height of the lift arms and the tilt angle of the work attachment mounting structure such that a grading edge of the work attachment is maintained at an elevation substantially corresponding to the predetermined level as the machine is propelled about the worksite.