Method for operating piezoelectric actuator, particularly fuel injector of internal combustion engine of motor vehicle, involves determining control parameter for pressurization of actuator by model

摘要

The method involves determining a control parameter for pressurization of an actuator (12) by a model, particularly in the form of a characteristic map depending on a reference value for the operation of the actuator, particularly a reference voltage or a reference-charging time. The characteristic map is formed actuator specific and the actuator specific characteristic map is partially modified over an operating time of the actuator. An independent claim is included for a control device for operating a piezoelectric actuator, particularly a fuel injector of an internal combustion engine of a motor vehicle.