Patent ID: 8160778
Filing Date: 2012-04-17
Classification: B62D,E02F

Abstract:
1. A steering system for an engineering vehicle comprising: a hydraulic pump; a steering cylinder driven by pressurized oil discharged from the hydraulic pump; a steering valve for controlling the direction and flow rate of the pressurized oil supplied from the hydraulic pump to the steering cylinder; and a steering wheel manipulated by an operator, said steering system switching the steering valve based on the rotational operation of the steering wheel so as to control the steering cylinder, wherein said steering system further comprising: front operation detection means for detecting an operational state of a front work device disposed on a vehicle front part of the engineering vehicle; and steering operation control means for controlling the switching direction and flow rate of the steering valve on the basis of the rotational operation of the steering wheel and the operational state of the front work device detected by said front operation detection means.