NICHOLS, THOMAS A.,BEBERNES, THOMAS D.,ROTOLE, DAVID V.,TEACH, KYLE R.
申请号：
CA2898404
公开号：
CA2898404A1
申请日:
2015.07.27
申请国别(地区):
CA
年份:
2016
代理人:
摘要：
A steering system is described for a vehicle having steerable wheels. Ahydrauliccharge pressure circuit may be configured to provide charge pressure to one ormorehydraulic components of the vehicle, and a hydraulic drive pressure circuitmay beconfigured to provide working pressure to one or more other hydrauliccomponents of thevehicle. Hydraulic machines may rotate front wheels in order to drive thevehicle, and afront valve assembly may control steering of the front wheels by controllingthe hydraulicmachines. The hydraulic machines may be driven to rotate the front wheels bytheworking pressure from the hydraulic drive pressure circuit, and the frontvalve assemblymay control the front hydraulic machines to steer the agricultural vehicle bycontrolling flowof hydraulic fluid from the hydraulic charge pressure circuit through thefront valveassembly.
