Volkswagen Ag

Lars Petersen

Andre Shurkewitsch

Elmar Millich

Sebastian Heinken

Jan Vogelsang

Stephan Schwieger

Henrik Hoffmeyer

Robert Wetten

Nikolaus Zimbalist

Torsten Scheller

Christian Arenz

René Kleinhans

Leonhard Lang

Sebastian Heins

Mario Campe

Peter Kawelke

Pierre Misiek

Jean-Sebastian Tempel

Kirsten Pankratz

A method for charge pressure control of an internal combustion engine that is an integral part of a drive train, wherein the drive train comprises at least the internal combustion engine, an intake line, an exhaust gas line, and an exhaust gas turbocharger. The internal combustion engine has at least one intake valve that fluidically connects the intake line to a combustion chamber of the internal combustion engine, and at least one exhaust valve that fluidically connects the combustion chamber to a first section of the exhaust gas line. The exhaust gas line has a first section between the combustion chamber and the exhaust gas turbocharger, and a second section downstream from the exhaust gas turbocharger. The exhaust gas turbocharger and/or a bypass that bypasses the exhaust gas turbocharger are/is adjustable. In the method, an opening point in time of the at least one intake valve and a closing point in time of the at least one exhaust valve are taken into account.

Method for charge pressure control of an internal combustion engine

A method for determining the quantity of filling components in a cylinder of an internal combustion engine. The cylinder is connected to an air supply via an inlet valve and to an exhaust gas conduit via an outlet valve. The method includes the steps of obtaining an exhaust gas back pressure at a specified point in time when the outlet valve is opened during a work cycle of the internal combustion engine and calculating the quantity of the filling components at the specified point in time on the basis of the obtained exhaust gas back pressure. A controller is also provided for carrying out the method and a motor vehicle is also provided that includes the controller.

Method and controller for determining the quantity of filling components in a cylinder of an internal combustion engine

A method of calculating a residual gas mass in a cylinder of an internal combustion engine, wherein the cylinder has at least one intake valve and one exhaust valve, comprising: obtaining a cylinder residual gas mass base value that is based on a predefined model; determining a first cylinder residual gas mass value that indicates a cylinder residual gas mass remaining in the cylinder clearance volume after an expulsion of exhaust gas; determining a second cylinder residual gas mass value that indicates a cylinder residual gas mass flowing into the cylinder due to a valve overlap of the intake valve and the exhaust valve, wherein the second cylinder residual gas mass value is determined based on the cylinder residual gas mass base value and the first cylinder residual gas mass value; and calculating the residual gas mass in the cylinder, based on the first and second cylinder residual gas mass values.

Method for calculating a residual gas mass in a cylinder of an internal combustion engine and controller

A method for determining a quantity of air within a cylinder of an internal combustion engine includes the steps of scaling an intake manifold pressure and an exhaust gas pressure in dependence on an actual ambient air pressure and a standard ambient air pressure in order to provide a scaled intake manifold pressure and a scaled exhaust gas pressure, implementing an air charge calculating algorithm produced under a standard ambient air pressure operating condition, in order to determine a standard quantity of air based on the scaled intake manifold pressure and the scaled exhaust gas pressure, and scaling the standard quantity of air in dependence on the actual ambient air pressure and the standard ambient air pressure in order to calculate the quantity of air within the cylinder of the internal combustion engine. An engine control unit and a method for controlling an internal combustion engine are also provided.

Air charge determination method, engine control unit and internal combustion engine

A method for determining an air volume in a combustion chamber of a fuel-injection internal combustion engine, especially during a load change condition, including synchronizing a throttle valve setpoint signal to an operating state criterion (t); determining a curve dynamics of the throttle valve position taking into account the synchronized throttle valve setpoint signal; determining an actual air volume quantity at an ACTUAL time point (t); determining a desired time point (t+&#x394;t); predicting a further air volume quantity for the desired time point (t+&#x394;t) and determining a total air volume quantity from the ACTUAL air volume quantity and the further air volume quantity for the desired time point (t+&#x394;t).

Method for determining an air volume in a combustion chamber of an internal combustion engine

A control unit for controlling a phase angle of a first camshaft of an internal combustion engine includes a first characteristic diagram signal generator for determining a dynamic setpoint phase angle of the first camshaft, a second characteristic diagram signal generator for determining a static setpoint phase angle of the first camshaft, and a first interpolator for determining a corrected setpoint phase angle of the first camshaft based on the dynamic setpoint phase angle of the first camshaft and on the static setpoint phase angle of the first camshaft. A motor vehicle including a control unit for controlling a phase angle of a first camshaft of an internal combustion engine and a method for controlling a phase angle of a first camshaft of an internal combustion engine are also provided.

Motor vehicle, control unit and method for controlling a phase angle of a camshaft

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Meinersen, Germany

Lars Petersen