초록 ▼

A load control device for a working tool of a construction vehicle in which a signal detected by a speed detector or a traction force detector is fed back to produce a deviation signal between said signal and a desired signal. A memory unit has stored a desired value of speed or traction force for e

A load control device for a working tool of a construction vehicle in which a signal detected by a speed detector or a traction force detector is fed back to produce a deviation signal between said signal and a desired signal. A memory unit has stored a desired value of speed or traction force for each acceleration and outputs the desired signal corresponding to an acceleration signal from an acceleration detector. The working tool is moved up or down according to the deviation signal and, through the feedback mechanism, the load applied to the working tool is automatically controlled so as to enable the construction vehicle to work at maximum work efficiency without operator\s efforts.

대표청구항 ▼

A load control device for a working tool which is mounted on a construction vehicle to excavate and carry earth, which comprises: an acceleration detector for detecting acceleration of said vehicle; a memory unit storing a characteristic curve representative of the relation of said acceleration to a

A load control device for a working tool which is mounted on a construction vehicle to excavate and carry earth, which comprises: an acceleration detector for detecting acceleration of said vehicle; a memory unit storing a characteristic curve representative of the relation of said acceleration to a desired vehicle speed at which a maximum work efficiency is provided, wherein said memory unit receives the output of the acceleration detector, and provides an output in response thereto representative of the desired vehicle speed; a speed detector for detecting a vehicle speed; and a control circuit for controlling a load applied to said working tool according to the difference between said desired vehicle speed which is read out of said memory unit and the actual vehicle speed as provided at the output of said speed detector.