Appliance with sensor and evaluator determining equilibrium position of actuator armature, typically operating gas change valve of internal combustion engine, includes electromagnetic unit and spring mechanism

摘要

Appliance with sensor (10) and evaluator (15) determines equilibrium position (14) of actuator armature (11), e.g. for operating gas change value (24) of internal combustion engine. Appliance includes electromagnetic unit and spring mechanism (20), via which armature is held in equilibrium position between two end positions (12,13), with electromagnetic unit switched off. On motion of armature, sensor picks-up its motion magnitude from end position to equilibrium position and evaluator determines equilibrium position from motion magnitude. Independent claims are included for armature equilibrium determining method.