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HYDRAULIC SIGNAL CONTROL SYSTEM AND METHOD
专利权人:
发明人:
Thomas Edward Johnson
申请号:
US14806406
公开号:
US20170023149A1
申请日:
2015.07.22
申请国别(地区):
US
年份:
2017
代理人:
摘要:
In an embodiment, a tangible, non-transitory computer-readable media stores computer instructions executable by a processor and configured to increase a first signal pressure to a first actuating element of a directional control valve until the directional control valve is about to shift positions. The first signal pressure is greater than a second signal pressure to a second actuating element of the directional control valve by a signal pressure differential. The computer instructions are also configured to increase the first and second signal pressures equally while maintaining the signal pressure differential to cause a first pilot stage check valve and a second pilot stage check valve to shift positions, and, within a threshold time thereafter, increase the first signal pressure while maintaining the second signal pressure to increase the signal pressure differential to a value sufficient to cause the directional control valve to shift positions.
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中国工程科技知识中心
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