Avl List Gmbh

Avl Gesellschaft Fur Verbrennungskraftmaschinen Und Messtechnik M.b.h.

Paul Kapus

Dirk Denger

Thomas Pels

Helmut List

Robert Fischer

Andreas Zurk

Walter Piock

Christof Knollmayr

Martin Wirth

Franz Chmela

Peter Schoeggl

Wolfgang Kriegler

Erik Bogner

Peter Ebner

Alexander Fürschuss

Guenter Karl Fraidl

Kurt Prevedel

Mario Oswald

Mario Ninaus

Josef Wolkerstorfer

Günter Fraidl

Carsten Kaup

Bernhard Graf

Matjaz Korman

Günter Karl Fraidl

Vincent Benda

The invention relates to a system () for analyzing an energy efficiency of a motor vehicle (), having: a first device (), in particular a sensor, configured to detect a first data set of at least one first parameter, which is suitable to characterize energy consumed by at least one apparatus A, in particular a steering system or drive device (); a second device (), in particular a sensor, configured to detect a second data set of at least one second parameter, which is suitable to characterize an operating state of the at least one apparatus A; a third device (), configured to detect a third data set of at least one third parameter, which is suitable to characterize at least one driving state of the vehicle (); a first comparison device (), in particular part of a data processing device, configured to compare the values of the second data set with predefined parameter ranges which correspond to at least one operating state, and to compare the values of the third data set with predefined parameter ranges which correspond to at least one driving state; an allocation device (), in particular part of the data-processing device, configured to allocate the values of the first data set and the values of the second data set to the respectively present at least one driving state; and a processing device (), in particular part of the data-processing device, configured to determine at least one first characteristic value which characterizes at least the energy efficiency of the at least one apparatus A on the basis of the first data set and the second data set as a function of the at least one driving state.

System and method for analyzing the energy efficiency of a motor vehicle, in particular of an apparatus of the motor vehicle

An exhaust gas line () of an internal combustion engine includes at least one catalytic converter () which is provided with at least one catalytic converter support () which is arranged in the housing () and which includes at least one first and one second area () which can be flowed through in parallel, with the flow being capable of being deactivated in at least one area by a switching device () arranged in the exhaust gas line (). In order to achieve a rapid activation of the catalytic converter in the simplest possible and most compact way, the areas () of the catalytic converter support () have different physical and/or chemical properties in relation to response behavior, permeability, catalytic activity and/or thermal inertia.

Exhaust gas line of an internal combustion engine

The invention relates to a method for operating an internal combustion engine () with two-stage turbocharging by a low-pressure exhaust gas turbine () and a high-pressure exhaust gas turbine (), the low-pressure exhaust gas turbine () being positioned downstream of the high-pressure exhaust gas turbine () in the exhaust system () of the internal combustion engine (), and the high-pressure exhaust gas turbine () being provided with a bypass line () with a control valve (). In order to achieve quick response of the internal combustion engine () in transient operation, it is provided that continuously or periodically at certain intervals preferably an electronic control unit will check whether a steady-state or a transient operating state of the internal combustion engine () is prevailing, and that the control valve () is controlled in accordance with at least one steady-state characteristic map () in the steady-state case and in accordance with at least one transient characteristic map () or a transient function in the transient case.

Method for operating an internal combustion engine

A method for operating a hybrid drive in a vehicle with an internal combustion engine and at least one electric machine connected thereto which is in connection with at least one energy storage device including operating the internal combustion engine is operated in overload mode in at least one preferably exceptional operating situation of the hybrid drive in order to avoid power losses at low loading state of the energy storage device.

A method for recognizing and avoiding premature combustion events includes the steps of:

Method to recognize and avoid premature combustion events

The invention relates to an invention combustion engine comprising a cylinder head () with at least one inlet port () and at least one injection device () per cylinder (), which extends into the combustion chamber. In order to reduce wear of the injection device while preventing depositions in the region of the injector pocket, the top wall () of the combustion chamber is provided with an injector pocket () in the area of the mouth () of the injection device (). Preferably, at least one scavenging duct arrangement () extends into the injector pocket ().

Internal combustion engine

A cylinder head for an internal combustion engine wherein intake openings to the cylinder are partly surrounded by a mask formed by a material projection of the top face of the combustion chamber, a contour of the mask having a flat main section of maximum height between an ascending and descending flank and being asymmetrical in a developed view.

An internal combustion engine with a device for controlled recirculation of exhaust gas into intake ducts via an exhaust gas recirculation line connected to the engine's exhaust system. Rapid response behaviour is achieved by providing an exhaust gas recirculation port in each intake duct in the immediate vicinity of the cylinders, which port communicates with a distributing device supplied via an exhaust gas recirculation line, and by providing the distributing device with an adjusting element which is configured to jointly control the flow cross-sections of the exhaust gas recirculation ports.

A fuel injection system which includes an injection valve for a self-igniting internal combustion engine with direct fuel injection, in particular for liquefied gas fuels, and which is configured as a pintle-type nozzle opening against the force of at least one spring, has the opening force of its fuel needle directly provided by the magnetic force of a solenoid so as to create simplified rate shaping. The magnetic force increases quadratically with the needle lift vis-a-vis the force of the spring increasing linearly with the needle lift, resulting in an opening velocity of the needle increasing approximately quadratically, at least in certain regions, thus permitting small pintle lifts, and the needle has a maximum needle lift of smaller than 1 mm, i.e., preferably smaller than 0.5 mm.

Fuel injection system comprising an injection valve for a self-igniting

A combustion chamber located in the piston of an internal combustion engine is divided by restrictions into two or more partial chambers. The ratio between the minimum distance in the restricted area and the maximum distance in concave areas of the wall of the combustion chamber, as measured from the axis of the combustion chamber, is greater than or equal to 0.2. To improve the turbulence in the combustion chamber the proposal is put forward that the ratio between the minimum distance in the restricted area and the radius of the piston be smaller than or equal to 0.5, the wall of the combustion chamber being convex in the restricted area, and that the ratio between the maximum distance and piston radius be greater than or equal to 0.7.

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Judendorf, Austria

Paul Kapus