Patent application number | Description | Published |
20120095668 | METHOD FOR FEED-FORWARD CONTROLLING FUEL INJECTION INTO A CYLINDER OF AN INTERNAL COMBUSTION ENGINE - A method is provided for feed-forward controlling fuel injection into a cylinder of an internal combustion engine that includes, but is not limited to setting a desired value of a combustion parameter indicative of a fuel combustion within the cylinder, determining a value of one or more engine operating parameters, using the desired value of the combustion parameter and the determined values of the engine operating parameters for determining a value of a parameter of a fuel injection into the cylinder, and commanding a fuel injector associated to the cylinder to perform a fuel injection having the determined value of the fuel injection parameter. | 04-19-2012 |
20120191427 | SYSTEM FOR DIAGNOSING ERROR CONDITIONS OF A GAS FLOW CONTROL SYSTEM FOR TURBOCHARGED ENGINES - An evaluation unit is provided that includes, but is not limited to a microprocessor for receiving measurement signals from a gas flow control system of a combustion engine and for outputting a state signal indicating a state of the gas flow control system. A first set of measurement signals includes, but is not limited to a signal of a pressure upstream of a turbocharger and a signal of a pressure downstream of a turbocharger. A second set of measurement signal includes, but is not limited to a motor revolution speed. The microprocessor calculates first predicted values using a turbocharger model based on the first set of measurement signals and calculate a second predicted values using a nominal model based on the second set of measurement signals. The microprocessor further generates the state signal with a comparison of the first predicted values with the second predicted values. | 07-26-2012 |
20120197550 | SYSTEM FOR DIAGNOSING ERROR CONDITIONS OF A GAS FLOW CONTROL SYSTEM FOR DIESEL ENGINES - A combustion engine evaluation unit is provided that includes, but is not limited to a microcontroller receiving measurement signals from a gas flow control system and outputting a state signal of the gas flow control system. The microcontroller includes, but is not limited to input ports for receiving as first set of measurement signals. Furthermore, the microcontroller includes, but not limited to input ports for receiving as a second set of measurement signals. The microcontroller is configured to calculate a first set of predicted values with a gas flow model based on the first set of measurement signals and calculate a second set of predicted values with a nominal model based on the second set of measurement signals. The microcontroller is also configured to generate the state signal based on a comparison of the first set of predicted values with the second set of predicted values. | 08-02-2012 |
20130042609 | UNIT FOR ESTIMATING THE ROTATIONAL SPEED OF A TURBOCHARGER AND SYSTEM AND METHOD FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE WITH A TURBOCHARGER - A unit for estimating a rotational speed of a turbocharger is provided. The unit includes a microprocessor comprising input ports configured for receiving measurement signals from an exhaust gas flow control system of an internal combustion engine and an output port for outputting a signal indicative of the rotational speed of the turbocharger. The input ports are adapted to receive a first set of measurement signals and a second set of measurement signals. A microprocessor is configured to calculate an estimated rotational speed of the turbocharger using a turbocharger model, based on the first set of measurement signals and the second set of measurement signals. The second set of measurement signals include signals indicative of a pressure difference across a turbine of the turbocharger. | 02-21-2013 |
20130074795 | METHOD FOR CONTROLLING AN AUTOMATIC START-STOP MECHANISM - One aspect of the present disclosure relates to a method for controlling an automatic start-stop mechanism for an internal combustion engine. The method comprises providing a turbocharger temperature, comparing the turbocharger temperature with a constant and, if the turbocharger temperature is greater than the constant, deactivating the automatic start-stop mechanism of the internal combustion engine. | 03-28-2013 |
20130312406 | METHOD AND DEVICE FOR CONTROLLING AN ELECTRICAL ACTUATOR FOR A WASTEGATE VALVE ARRANGEMENT OF AN EXHAUST GAS TURBOCHARGER - A method for controlling an electrical actuator for a wastegate valve arrangement of an exhaust gas turbocharger in an internal combustion engine is provided. A wastegate is situated in a bypass channel of the exhaust gas turbocharger. The method includes closing or opening the wastegate by the actuator for adjusting the exhaust gas flow routed past the exhaust gas turbocharger via the bypass channel. The wastegate is exposed to a predetermined closing force while it is in a closed state so as to regulate the closing force to a desired value for the closing force as a function of an actual value for the closing force. Computer-readable mediums embodying a computer program product having a program to perform the method are also provided. | 11-28-2013 |
20150128588 | METHOD FOR THE LOAD-DEPENDENT OPENING AND CLOSING OF A BLOW-OFF VALVE FLAP OF AN INTERNAL COMBUSTION ENGINE WITH A TURBOCHARGER - A method for the load-dependent opening and closing of a blow-off valve flap of an internal combustion engine with a turbocharger is provided, in which by at least one detector on an internal combustion engine inlet side, at least one air pressure value, one air mass flow value and/or an opening position of a valve of the suction pipe are detected and transmitted to a control device. By the control device from the received values a current load of the internal combustion engine is determined, and by the control device based on the determined current load of the internal combustion engine and/or of the turbocharger, control inputs for an actuator of the blow-off valve flap are generated and transmitted to the actuator. The blow-off valve flap is completely opened, partially opened, minimally opened or closed and held in the respective position by the actuator dependent on the current load. | 05-14-2015 |