Patent ID: 8571763

Claim:
A construction vehicle comprising: a propulsion device that outputs propelling force; a working equipment, whose attitude is variable within a predetermined attitude range, and that is for performing a construction task upon a subject of working; and a controller that controls said propulsion device; wherein said controller: performs attitude determination in which it is determined whether or not the present attitude of said working equipment corresponds to a predetermined attitude within said attitude range; performs propulsion determination in which it is determined whether or not the present propulsive operation of said propulsion device corresponds to a predetermined propulsive operation that is performed when performing a predetermined construction task in which an over load is imposed upon said working equipment; performs driving force determination in which it is determined whether or not the magnitude of the present propelling force outputted from said propulsion device corresponds to a predetermined magnitude for which, if a reaction force based upon a larger propelling force is imposed from a subject of working upon said working equipment, an over load will be imposed upon said working equipment; and reduces the propelling force outputted from said propulsion device in the state in which the results of said attitude determination, said propulsion determination, and said driving force determination are all affirmative.