Patent ID: 8322481

Claim:
A traveling control apparatus for a hydraulic traveling vehicle, comprising: a hydraulic pump driven by a prime mover; a variable-displacement hydraulic traveling motor driven by hydraulic fluid supplied from the hydraulic pump; a directional control valve provided between the hydraulic pump and the hydraulic traveling motor; a transmission provided in an output section of the hydraulic traveling motor; and tires driven by the traveling motor through the transmission; wherein the traveling control apparatus includes: detection means for detecting multiple parameters regarding the traveling state of the hydraulic traveling vehicle; traveling state determination means for determining the traveling state of the hydraulic traveling vehicle based on the multiple parameters regarding the traveling state; and control means for controlling the maximum flow rate of the hydraulic fluid supplied to the hydraulic traveling motor through the directional control valve and the equivalent displacement of the traveling system including the hydraulic traveling motor and the transmission according to the result of traveling state determination.