Robert Boschgmbh

Helge Frauenkron

Robert Kuenne

Klaus Herz

Edgar Holl

A method for outputting driving information to indicate a power consumption-optimized driving state to a driver of a motor vehicle, including the following steps of ascertaining a target vehicle acceleration that is optimal in terms of consumption, as a function of at least one current operating state quantity of the vehicle, as well as of at least one tractive-resistance quantity, ascertaining an actual vehicle acceleration, generating the driving information as a function of the ascertained target vehicle acceleration and of the actual vehicle acceleration, and outputting the driving information.

Method and device for outputting driving information indicating an acceleration option that is optimal in terms of power consumption in a motor vehicle

A method for operating an internal combustion engine using externally supplied ignition, having a manually operable transmission, in which a torque produced by the internal combustion engine is able to be influenced via at least one control variable. An impending shifting process of the manual transmission and/or another operating situation of the internal combustion engine, during which a temporary lowering of the torque produced by the internal combustion engine is required and/or desired, is detected, and, as a function of the detection, the torque is lowered by changing at least one control variable of a fuel path.

Method for operating an internal combustion engine using externally supplied ignition

In a method for operating an internal combustion engine () having a plurality of combustion chambers (), wherein the combustion chambers () make moment contributions during operation of the internal combustion engine () to the resulting engine moment of the internal combustion engine () and each combustion chamber () is assigned at least one inlet valve () which is actuated on the basis of a predefined valve lift cam which can be selected from a plurality of valve lift cams, the moment contribution of each combustion chamber () is selected, in the case of a valve lift switchover from a first valve lift cam to a second valve lift cam, for a following ignition cycle in such a way that a deviation of a sliding mean value of the moment contributions of all the combustion chambers () over a plurality of consecutive ignition cycles from a predefined moment setpoint value is minimized.

Method for operating an internal combustion engine with variable valve control

A method and a device for operating an internal combustion engine provide that a value for a first performance quantity of the internal combustion engine is modeled as a function of at least one second performance quantity different from the first performance quantity, e.g., a charge of the internal combustion engine. This modeling is corrected as a function of a comparison of the modeled value for the first performance quantity with a measured value for the first performance quantity. The correction is performed differently for different operating points of the internal combustion engine.

Method and device for operating an internal combustion engine

A method for operating an internal combustion engine having an exhaust-gas turbocharger allows for an optimized charge air pressure buildup. For this purpose, an actuator for influencing the charge air pressure generated by a compressor of the exhaust-gas turbocharger is triggered. A characteristic of a trigger signal of the actuator is specified as a function of time.

Method for operating an internal combustion engine having an exhaust-gas turbocharger

A method for operating an internal combustion engine having at least two exhaust-gas turbochargers, which allows the synchronous operation of the two exhaust-gas turbochargers to be reliably set (adjusted). For each of the at least two exhaust-gas turbochargers, an actuator for controlling the boost pressure produced by the compressors of the at least two exhaust-gas turbochargers is controlled by a separate control signal. At least one of the control signals is corrected in an open-loop-controlled manner for the purpose of synchronizing the at least two exhaust-gas turbochargers.

Growing community of inventors

Markgroeningen, Germany

Helge Frauenkron