Dozing system for controlling a cutting angle of a bulldozer blade during dozing operation

摘要

A dozing system that enables automatic control for all kinds of soil properties and less frequently requires manual control intervention. The system is designed such that the blade is lifted or lowered at a start of excavation in dozing operation in an automatic drive mode such that the actual cutting angle &thgr; of a blade detected by an actual cutting angle detector becomes coincident with a target cutting angle (maximum cutting angle) &thgr;.sub.0 preset by a target cutting angle setting device.