Mtu Friedrichshafen Gmbh

Johannes Baldauf

Armin Dölker

Christian Rehm

Michael Eckstein

Jörg Remele

Andreas Kunz

Peer Smuda

Martin Schönle

Michael Walder

Ludwig Kläser-Jenewein

Michael Prothmann

Michael Hönl

Vadzim Khakholka

Kai-Michael Trautz

Eugen Bucher

Markus Fleckhammer

Ludwig Klaeser-Jenewein

Patrick Dussler

Ingo Wintruff

Johannes Kech

Johanes Kech

A method for monitoring crankcase pressure, in which a learning curve is calculated according to a target-actual deviation of the crankcase pressure, the target crankcase pressure is adjusted according to the learning curve, and a limit curve is calculated according to the target crankcase pressure. The actual crankcase pressure is monitored for exceedance of the limit curve. After an engine start, upon identification of a steady-state operation of the internal combustion engine, the actual crankcase pressure is compared with a limit value and, if the limit value is identified as being exceeded, the learning curve and, as a result, the limit curve are reset to their initial values.

Method for monitoring crankcase pressure

A method and a control device for monitoring the pressure in a crankcase of an internal combustion engine. The desired values for the pressure in the crankcase are defined for a plurality of operating points of the internal combustion engine. Furthermore, at least one of the defined desired pressure values is modified during operation of the internal combustion engine.

Method and control device for monitoring pressure in a crankcase

The present invention relates to a method for reducing the particle emissions of an internal combustion engine over its service life. The number of cylinders of the internal combustion engine in which post-injection is carried out is incrementally increased during the service life of the internal combustion engine. The increase in the number of cylinders receiving a post-injection may depend upon at least one parameter, which may be a running time, a distance performance, a particle concentration in exhaust gas, a load profile, or other parameter. The individual cylinders receiving post-injection may be changed to distribute wear.

Method for reducing the particle emission of an internal combustion engine and engine controller

The invention relates to a method for regulating a stationary gas motor (). In said method, a deviation of the regulated speed is calculated from a desired speed and an actual speed, a desired moment is determined as an adjustable variable from the deviation of the regulated speed by means of a speed governor, said desired moment being limited to an air ratio-limiting moment by limiting the moment, and a desired volume flow (VSL) is determined from the limited desired moment in order to define an angle (DKW, DKW) of the mixture throttle valve and an angle of the gas throttle valve.

Method for regulating a stationary gas engine

The invention proposes a method for controlling a stationary gas motor (), wherein a rotational speed control deviation is calculated from a target rotational speed (nSL) and a current rotational speed (nIST), a target torque is determined from the rotational speed control deviation as the controlled variable, wherein a mixture throttle angle (DKW, DKW) is determined for the determination of a mixture volume flow and of a current mixture pressure (p(IST), p(IST)) in a receiver pipe () upstream of the intake valves of the gas motor () as a function of the target volume flow, and wherein a gas throttle angle is determined for determining a gas volume flow as the gas content in a gas/air mixture, also as a function of the target volume flow.

Method for controlling a stationary gas motor

In a method for limiting the power output of an internal combustion engine, an air mass flow deviation of an actual air mass flow (mL(IST)) from a reference air mass flow (ML(REF)) is determined and, depending on the air mass flow deviation, a power output reduction is determined by which the maximum power output limit of the internal combustion engine is to be reduced in order to prevent overheating of the internal combustion engine.

Method for limiting the power output of an internal combustion engine

In a method of controlling an internal combustion engine wherein an injection begin is calculated depending at least on an actual engine speed and the injection begin is corrected, the injection begin correction is calculated from a deviation of a desired air mass flow from an actual air mass flow.

Method of controlling the injection begin of a fuel injection valve of an internal combustion engine

In a method for a torque-based control of an internal combustion engine wherein from an input value representing a desired engine power output a desired torque value is calculated, then the desired torque value is converted using a performance graph while taking another value into consideration to a first power output determining signal, which is then corrected by way of a relative efficiency and a power determining signal for controlling the drive torque is determined. The additional value corresponds to a relative friction moment, which is calculated from an actual deviation of the state of the engine from a standard state in which the relative friction moment is zero.

Method for a torque-based control of an internal combustion engine

A method for the torque-oriented control of an internal combustion engine in which a set torque is computed from an input variable that represents the desired power, and the set torque is limited to an air mass-dependent maximum torque.

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Wangen, Germany

Johannes Baldauf