Magnetic Latching Valve Control for Stable State Retention

The patent applies periodic pulsed actuation signals instead of continuous signals. The controller sends actuation signals at specific time intervals (e.g., every 5-10 seconds) to maintain the valve in the commanded state. This periodic action reduces energy consumption and prevents overheating while maintaining valve reliability through the latching mechanism that holds the spool position between pulses.

The patent employs a latching mechanism where the spool position is self-maintained through pressure differential and mechanical latching features. Once the spool moves to a commanded position, it latches there without requiring continuous energy input. The system serves itself by using the fluid pressure and mechanical design to maintain state, eliminating the need for continuous actuation signals while preserving stability against environmental disturbances.

The patent merges the latching function with the existing spool and valve body structure. The latching features are integrated into the spool geometry and valve bore design, combining the flow control function and state maintenance function into a unified structure. This integration minimizes additional complexity while achieving the energy-saving latching effect.

The controller implements a feedback mechanism that monitors the valve's commanded state and automatically resends actuation signals at predetermined intervals to maintain that state. The controller program includes timing logic that tracks signal transmission and automatically retransmits signals as needed, providing intelligent control that improves reliability without requiring complex external control systems.