Continental Automotive Gmbh

Continental Automotive France

Laurent Cuvelier

Jacques Rocher

Philippe Avian

A method for determining atmospheric pressure AMP during operation in a partial load state of a turbocharged engine () including an air intake line () incorporating a butterfly valve (), and an exhaust line () including a bypass duct () incorporating an exhaust gas discharge valve (), the method includes measuring the air pressure PUT upstream of the butterfly valve (), and for a given speed of N rpm of the engine (), when the boost pressure PUT corresponds substantially to the natural boost pressure, determining the atmospheric pressure AMP=AMP(0)+PUT&#x2212;PUT(0), wherein AMP(0) is the atmospheric pressure previously measured, and PUT(0) is boost pressure naturally obtained for the speed N rpm of the engine () for the atmospheric pressure AMP(0).

Method for determining atmospheric pressure during the operation, in a partial load state, of a turbocharged engine

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:

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Toulouse, France

Laurent Cuvelier