Mallebrein
Georg Mallebrein, Korntal-Muenchigen DE
Patent application number | Description | Published |
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20100017079 | METHOD AND DEVICE FOR OPERATING A DRIVE UNIT - A method and a device are provided for operating a drive unite having an engine and a transmission, which make possible an improved shifting strategy. In a first operating state, the engine is operated using a first number of active cylinders. In a second operating state, the engine is operated using a second number of active cylinders. The first number is different from the second number. A gear ratio is set as a function of at least one operating variable of the drive unit. The gear ratio is also set as a function of the current or the attainable operating state of the engine with respect to the number of the active cylinders. | 01-21-2010 |
Georg Mallebrein, Kortal-Muenchingen DE
Patent application number | Description | Published |
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20100000495 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - A method and a device for operating an internal combustion engine make it possible to shift the combustion limit. In this context, a predefined output variable of the internal combustion engine such as the torque, for example, is realized in at least one operating state of the internal combustion engine by at least a retardation of an ignition angle. It is checked whether, due to the retardation of the ignition angle, a variable like, for example, a misfiring, characteristic for the combustibility of the air/fuel mixture in a combustion chamber of the internal combustion engine, exceeds a predefined limiting value in terms of a deterioration of the combustibility, and in this case, at least one actuator of the internal combustion engine, different from an actuator for setting the ignition angle, such as the exhaust-gas recirculation valve or EGR valve, for instance, is controlled along the lines of improving the combustibility of the air/fuel mixture. | 01-07-2010 |
George Mallebrein, Korntal-Muenchingen DE
Patent application number | Description | Published |
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20090281709 | Method and device for operating an internal combustion engine - In a method for operating an internal combustion engine, a setpoint fuel quantity to be injected is subdivided into a first fuel quantity which is to be injected into an intake manifold of the internal combustion engine, and a second fuel quantity to be injected directly into a combustion chamber of the internal combustion engine. The subdivision of the fuel quantity is performed as a function of a temperature that is characteristic for the operation of the internal combustion engine, e.g., in a start of the internal combustion engine, and the ratio between the first fuel quantity and the second fuel quantity is continually modified as a function of the temperature. | 11-12-2009 |
20100198482 | Method and device for operating an internal combustion engine having cylinder shutdown - A method and a device for operating internal combustion engine, in particular in an unfired state, are described, which make possible a largely jerk-free switchover between two operating states of internal combustion engine, having different numbers of cylinders that are activated regarding the charge cycle. Air is supplied to the internal combustion engine via an actuator in an air supply, and the quantity of air supplied to the internal combustion engine is influenced by the position of the actuator. A charge cycle state of at least one cylinder of the internal combustion engine is changed. The position of the actuator in the air supply is changed with the change of the charge cycle state of the at least one cylinder. | 08-05-2010 |
20110253079 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In a method for operating an internal combustion engine, a crankcase of the internal combustion engine has a vent into the intake section of the internal combustion engine, and upon outgassing of fuel out of engine oil present in the crankcase, the operating point of the internal combustion engine is modified so that the air-fuel ratio does not fall below a definable value. | 10-20-2011 |