外文摘要：Hydraulic cylinders controlled by electronic valves can be provided at each rear corner of an agricultural machine to improve four wheel steering. The valves can receive hydraulic fluid from a pump and release hydraulic fluid to tank, while independently controlling an amount of hydraulic fluid to each rear steering cylinder. The valves can be controlled by a controller that is also in communication with position sensors configured to sense positions of the front and rear steering cylinders, so that the rear steering cylinders can be correspondingly controlled to follow the front steering cylinders.
申请号： BR102018009674
专利号：BR102018009674B1
公开/公告号：BR102018009674B1
申请日：2018-05-11
公开/公告日：2023-01-10
申请/专利权人：Cnh Ind America Llc
发明/设计人： Roy A Bittner; Nathan P Brooks; Blaine Schwalbe
主分类号： A01M7/00;
法律状态：授权
原文传递申请：江苏省科技资源（工程技术文献）统筹服务平台