Patent ID: 8991268
Filing Date: 2015-03-31
Classification: F16K

Abstract:
1. Method for determining a break-away force in an actuator, said actuator comprising an actuator armature including a positioning element movable in relation to an actuator housing, said positioning element being movable by means of an actuator drive, a driving force is applied through said actuator drive to said positioning element, wherein said actuator is in a resting state in the beginning, the driving energy required for moving said actuator drive is successively increased, wherein said driving energy is converted into said driving force by driving means, and a measurement value of said actuator drive is measured by at least one sensor, wherein as soon as a change of said measurement value is detected, a state is verified in which a holding force which counter acts movement of said positioning element, and said driving force generated by said driving means, are balanced, wherein a slight increase of said driving force generates the said break-away force.