Hydraulic Pressure Control Diagnosis via Motor Current Fluctuation

The patent implements a feedback mechanism by monitoring the current consumption of the motor driving the pump and comparing it against expected ranges. The controller receives current information from the current information acquisition unit and uses this feedback to determine whether the hydraulic pressure control mechanism is operating normally or if an abnormality exists, enabling continuous diagnostic monitoring without adding complex external sensing systems.

The system uses the motor's own current consumption characteristics as the diagnostic parameter, eliminating the need for separate sensors or monitoring devices. The motor's electrical properties serve the dual purpose of driving the pump and providing diagnostic information about the hydraulic system's health status.

The controller continuously monitors motor current and provides feedback about system health status. This automatic diagnostic feedback enables the system to detect abnormalities such as pump fixation or contamination without requiring manual inspection or complex operational procedures from the user.

The patent replaces potential manual mechanical inspection methods with an electrical monitoring system. Instead of requiring physical examination of hydraulic components, the system uses electrical current measurements to diagnose mechanical issues, simplifying the operational interface while improving safety.