Method for calibrating a position-determining device of an exhaust gas flap device and exhaust gas flap device for carrying out the method

摘要

Method for calibrating a position-determining device of an exhaust-gas flap device (1), wherein the exhaust-gas flap device (1) has an actuator (2) and a transmission device (3) which transmits mechanical drive energy from the actuator (2) to the exhaust flap (4), wherein the transmission device (3 ) has a spring device and the actuator is resiliently coupled to the exhaust valve, so that the exhaust valve (4) actuators driven in an adjustment between a first end stop (5) and a second end stop (6) is adjustable, and wherein the determination of the position of the exhaust valve (4) takes place indirectly in and / or on the actuator (2), characterized in that a. the exhaust flap (4) actuator driven initially adjusted until it stops against the first end stop (5), b. the actuator (2) is continued to operate after striking the first end stop (5), so that the exhaust flap (4) is pressed against the first end stop (5) with increasing force, c. upon reaching at least one predetermined or predefinable actuator parameter, a first actuator position is read out, d. actuator flap the exhaust flap (4) is then adjusted until it stops at the second end stop (6), e. the actuator (2) is operated further after striking the second end stop (6), so that the exhaust flap (4) is pressed with increasing force against the second end stop (6), f. Upon reaching the Aktuatorparameters a second Aktuatorstellung is read and G. the actuator center position belonging to the center position (12) of the adjustment area is calculated from the first and the second actuator position.