发明公开
EP2760726A2 STEERING CONTROL UNIT AND ELECTRO-HYDRAULIC STEERING LOAD SENSE CONTROL
有权
转向控制单元，电液转向载荷测量控制
- 专利标题： STEERING CONTROL UNIT AND ELECTRO-HYDRAULIC STEERING LOAD SENSE CONTROL
- 专利标题（中）： 转向控制单元，电液转向载荷测量控制
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申请号： EP12778171.4申请日： 2012-09-28
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公开(公告)号： EP2760726A2公开(公告)日： 2014-08-06
- 发明人: KRAHN, Aaron, Kelly
- 申请人： Eaton Corporation
- 申请人地址： Eaton Center 1000 Eaton Boulevard Cleveland OH 44122 US
- 专利权人： Eaton Corporation
- 当前专利权人： Eaton Corporation
- 当前专利权人地址： Eaton Center 1000 Eaton Boulevard Cleveland OH 44122 US
- 代理机构： Schwan, Ivo
- 优先权： US201161541697P 20110930
- 国际公布： WO2013049582 20130404
- 主分类号： B62D5/09
- IPC分类号： B62D5/09
摘要：
An aspect of the present disclosure relates to a steering system having first and second steering circuits in fluid communication with a fluid actuator wherein the steering circuits are disposed in parallel to each other. The second steering circuit includes a proportional valve having a load-sense feature in selective fluid communication with a load-sense connection and the first steering circuit. The load-sense feature is open to the first steering circuit when the proportional valve is in a neutral position and closed to the first steering circuit when the proportional valve is moved to a first or second steering position. When the proportional valve is actuated from the neutral position to the first or second steering position the movement of the proportional valve closes the load sense feature from the first steering circuit and operates to deactivate the first steering circuit.
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