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Fault detection, isolation and reconfiguration system and method for controlling an electrohydraulic system used in construction machinery
Fault detection, isolation and reconfiguration system and method for controlling an electrohydraulic system used in construction machinery
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机译:用于工程机械中的电液系统的故障检测,隔离和重配置系统及方法
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摘要
The present disclosure relates to fault detection, isolation and reconfiguration schemes, architectures and methods for use in electrohydraulic actuation systems for construction equipment. In one embodiment, a supervisory controller adapted to interface with a main controller of the construction vehicle is provided. A plurality of control nodes that interface with the supervisory controller are also disclosed, each of which includes pressure and position sensors. The nodes also include a first actuator control node for controlling operation of a first hydraulic actuator, a second actuator control node for controlling operation of a second hydraulic actuator, and a pump control node. The control system has an architecture in which faults are detected and isolated at the supervisory controller level and, where possible, within each of the control nodes at a sensor level, a component level, and a subsystem level.
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