Method for operating a hydraulic valve of a hydraulic device of a motor vehicle transmission device as well as a motor vehicle transmission device

A method for operating a hydraulic valve of a hydraulic device of a motor vehicle transmission device, comprising:

• superposing a modulation alternating current with an actuating current of the hydraulic valve to adjust a shaking vibration of the hydraulic valve by an electronic computing device,
• determining a deviation between an actual pressure resulting from the actuating current and a setpoint pressure as a function of the actuating current for the hydraulic device by the electronic computing device, and modifying an amplitude and/or a frequency of the modulation alternating current as compared to a starting value equalizing a hysteresis of the actual pressure relative to the setpoint pressure, as a function of a tolerance range being exceeded by the determined deviation,
• wherein a maximum envelope curve arranged above a characteristic curve and a minimum envelope curve arranged below the characteristic curve are superimposed on a characteristic curve of the setpoint pressure, each envelope curve defining a limit curve for the deviation and including the tolerance range for the determined deviation, within which the modulation alternating current corresponds to the starting value,
• wherein the amplitude and/or the frequency of the modulation alternating current is modified by a defined value as compared to the starting value of the modulation alternating current when an integral of deviation of the actual pressure exceeds a specified threshold value beyond one of the limit curves over time.