Adjustment apparatus for a hydrostatic piston machine, and hydrostatic piston machine having an adjustment apparatus of this kind

A hydrostatic piston machine, comprising:

• a pivot cradle;
• and
• an adjustment apparatus configured to adjust the pivot cradle, the adjustment apparatus including:
• an actuating piston;
• and a regulating valve including a regulating piston that is mechanically operatively connected to the actuating positon such that a position of the regulating piston depends on a position of the actuating piston;
• a solenoid configured to adjust the regulating piston to control charging of pressure medium to and discharging of pressure medium from an actuating chamber adjacent to the actuating piston;
• and
• a regulating device configured to drive the solenoid with a control current, the control current determined by:
• scaling a setpoint pivot angle of the pivot cradle to produce a guide voltage;
• assigning the guide voltage to a setpoint current via:
• a first characteristic curve when the setpoint pivot angle of the pivot cradle is greater than a previous pivot angle of the pivot cradle;
• and
• a second characteristic curve when the setpoint angle is less than a previous pivot angle of the pivot cradle;
• and
• converting the assigned setpoint current into the control current.