Method for regulating the control of an electrical wastegate actuator by measuring the current passing through the electrical actuator

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United States of America Patent

PATENT NO 9746075
SERIAL NO

14555772

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Importance

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Abstract

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Method for regulating the control of an electrical wastegate actuator controlled via an H bridge to permit displacement of the wastegate in its closure and opening directions according to whether the current passes through the actuator in one or opposite direction, includes:

    determining a set position which the wastegate has to reach, and an activation time of the actuator defining a monitoring time;applying a control signal to the actuator to displace the valve into the set position;measuring the current passing through the H bridge and applying a correction factor to the current to obtain the motor torque;obtaining the displacement speed of the wastegate by integration of the motor torque;obtaining the position reached by the wastegate at the end of the monitoring time by integration of the speed;comparing the position reached with the set position; andrepeating the method until the set position is reached.

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Patent Owner(s)

Patent OwnerAddress
VITESCO TECHNOLOGIES GMBHSIEMENSSTRASSE 12 REGENSBURG 93055

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Avian, Philippe Goyrans, FR 9 31
Cuvelier, Laurent Toulouse, FR 4 4
Rocher, Jacques Saint Orens de Gameville, FR 25 62

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