Method for operating belt drive used in motor vehicle, involves driving driven accessory with drive shaft along driving direction and against driving direction, so as to move traction belt back and forth over pulley

摘要

A belt drive (10) is equipped with pulley (12) which is rotated over spring element (16) in the circumferential direction relative to drive shaft (14). A traction belt (18) is cooperated with pulley and driven accessory (20). The traction belt is back and forth moved over the pulley, when the driven accessory is driven with drive shaft along driving direction and against driving direction, respectively.