Audi Ag

Volkswagen Ag

Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr

Daniel Beese

Holger Braun

Sebastian Heinken

Matthias Schultalbers

Olaf Magnor

Tim Thaler

Daniel Reitebuch

Joachim Seydell

Guido Ehlers

Jorg Ballauf

Marco Bunjes

Benjamin Frank

Markus Seemayer

Frank Stegemann

Siegmar Lampe

Stefan Linka

A method for determining a desired intake manifold pressure of an internal combustion engine by means of an iterative method, wherein a cylinder charge is determined for an intake manifold pressure iterated during the iterative method, and the desired intake manifold pressure is determined as a function of the cylinder air charge that has been determined. In addition, a control device for carrying out the method is provided.

Method and control device for determining a desired intake manifold pressure of an internal combustion engine

A deaeration and cooling system for a fuel tank of an internal combustion engine includes an absorption refrigerator configured to cool fuel in the fuel tank. The absorption refrigerator includes a burner, an evaporator and an exhaust-gas heat exchanger. Thermal energy for operating the absorption refrigerator is obtained from the combustion of evaporated fuel. The evaporated fuel is removed from the fuel tank and supplied to the burner of the absorption refrigerator.

Tank ventilation and cooling system for hybrid vehicles

A method for controlling boost pressure in an internal combustion engine is provided. The method includes a boost pressure control device, which is used to control the boost pressure in an internal combustion engine. The boost pressure control device includes a bypass unit, preferably in the exhaust gas flow of the internal combustion engine. The bypass unit includes an actuating device which enables the bypass unit when a predetermined actuating device setpoint value is reached. An adapted value is established as the correction value (pwgad) as a function of preset and/or detected internal combustion engine parameters (rlsol, nmot). The adapted value is used to adapt the setpoint value for the actuating device, which is specified as a function of the operating point, for a predetermined control deviation between a boost pressure actual value and a boost pressure setpoint value.

Method for controlling boost pressure in an internal combustion engine for motor vehicles

Method for controlling boost pressure in an internal combustion engine, using a boost pressure control device by means of which from the control deviation between a setpoint boost pressure and an actual boost pressure a manipulated variable is generated which has a D portion supplied by a differential control unit or a damper, the D portion being adapted as a function of a control deviation of a transient effect detected and evaluated for a predetermined evaluation time period, wherein the D portion adaptation includes an operating point-dependent D portion depth adaptation and/or an operating point-dependent D portion time adaptation, whereby the output variable for the differential controller is adapted by the D portion depth adaptation, and the operating time of the D portion corresponding to predetermined boost pressure parameters, in particular characteristic map parameters, is adapted by the D portion time adaptation.

Method for controlling boost pressure in an internal combustion engine

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Braunschweig, Germany

Daniel Beese