Axial Piston Pump Control Without Pilot Piston Position Sensing

The patent replaces mechanical position detection systems with electronic control. The electronic control unit receives target values for outlet pressure and delivery volume, processes these signals electronically, and actuates the pilot valve electronically without requiring mechanical position sensors on the set piston. This substitution eliminates complex mechanical feedback while achieving precise control through electronic signal processing.

The patent uses electronic signal copying and processing instead of physical position measurement. The control unit works with target value signals and control signals that represent the desired state, eliminating the need for physical position detection mechanisms. The system controls the pilot valve based on electronic target values rather than mechanical feedback from position sensors.

The patent implements dynamic control by allowing the delivery volume adjustment rate to vary continuously based on operating conditions. The electronic control unit processes target values and generates control signals that dynamically adjust the pilot valve position, enabling the delivery volume to change at optimized rates rather than following fixed mechanical characteristics. This dynamic control improves responsiveness and control quality without adding mechanical complexity.

The patent changes control parameters electronically rather than through mechanical adjustments. The electronic control unit modifies control signals to the pilot valve based on target delivery volume and pressure values, enabling dynamic adjustment of the delivery volume rate. This parameter change approach allows flexible control adaptation without modifying the mechanical structure of the pump or valve system.

The patent replaces hydro-mechanical feedback mechanisms with electronic control. Instead of using hydraulic pressure feedback to mechanically regulate the pump, the system uses an electronic control unit that receives target values and generates appropriate control signals to the pilot valve. This electronic substitution maintains control precision while eliminating complex hydro-mechanical feedback loops.

The patent implements electronic feedback control where the control unit receives target values for outlet pressure and delivery volume, processes these signals, and adjusts the pilot valve accordingly. This electronic feedback mechanism replaces hydro-mechanical feedback while achieving comparable or superior control precision through flexible signal processing and adaptation capabilities.