Willimowski
Ingo Willimowski, Kamp-Lintfort DE
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20110045815 | METHOD FOR SUPPRESSING USE OF A MOBILE PHONE NETWORK IN AN AREA - The invention relates to a method for suppressing use of a mobile phone network ( | 02-24-2011 |
Markus Willimowski, Freiberg A.n. DE
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20150122000 | METHOD FOR DETECTING AN ERROR IN THE OPENING BEHAVIOR OF AN INJECTOR - A method for detecting an error in the opening behavior of an injector of an internal combustion engine, the injector having an electromagnetically actuated valve element, a ballistic partial injection being carried out, the injector being ballistically activated, so that the valve element is not opened up to a lift stop, a ballistic closing delay period is determined, the determined ballistic closing delay period is compared with a reference value, and an error in the opening behavior of the injector is detected with the aid of the comparison. | 05-07-2015 |
Peter Willimowski, Darmstadt DE
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20100304261 | FUEL CELL DESIGN WITH AN INTEGRATED HEAT EXCHANGER AND GAS HUMIDIFICATION UNIT - A fuel cell assembly having a flow distribution subassembly that comprises four sets of flow channels, the first set facing an anode for distribution of a fuel reactant to said anode, the second set facing a cathode for distribution of an oxidant to said cathode, the third set in flow communication with said second set and in heat transfer relation with at least one of said anode and said cathode, and the fourth set receiving a coolant different from said oxidant. | 12-02-2010 |
Peter Willimowski, Rossdorf DE
Patent application number | Description | Published |
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20090075127 | METHOD FOR MEASURING HIGH-FREQUENCY RESISTANCE OF FUEL CELL IN A VEHICLE - A transient load can be applied to a fuel cell stack to generate an AC voltage across and an AC current through the fuel cell stack. The AC voltage and AC current can be used to ascertain an impedance of the fuel cell stack. The ascertained impedance can be correlated to a state of hydration of the fuel cell stack thereby providing an independent determination of the state of hydration. The independently determined state of hydration can be used as a diagnostic tool to verify a different independent determination of the state of hydration and/or as an input for controlling operation of the fuel cell stack. | 03-19-2009 |
20090117417 | METHOD FOR MODEL BASED EXHAUST MIXING CONTROL IN A FUEL CELL APPLICATION - A system and method for controlling a bleed valve and a compressor in a fuel cell system during an anode exhaust gas bleed so as to maintain the concentration of hydrogen within a mixed cathode exhaust gas and anode gas below a predetermined percentage. The system uses a valve orifice model to calculate the flow rate of the anode exhaust gas through the bleed valve to identify how much airflow from the compressor is required to dilute the hydrogen in the anode gas to be below the predetermined percentage. The system also uses sensor inaccuracies and production tolerances in the valve orifice model to ensure that the concentration of hydrogen in the mixed anode and cathode exhaust gas is below the determined percentage. | 05-07-2009 |
20140242491 | FUEL CELL SYSTEM INCLUDING DIAGNOSTIC TECHNIQUE FOR UNBALANCED COMPRESSOR - A diagnostic system for determining whether a rotor shaft of a compressor is unbalanced. The compressor includes a displacement sensor that measures the displacement of the rotor shaft as it is rotating. The sensor dynamic frequency signal is sent to a bandpass filter that filters out an eigen-frequency frequency that is a function of shaft elasticity and rotor dynamics. The filtered frequency signal is then rectified by a rectifier to make the filtered frequency signal positive. The rectified signal is then passed through a low pass filter that converts the rectified signal to a DC signal. The DC signal is then sent to a controller that determines if the amplitude of the signal is above a predetermined threshold, which indicates a problem with the balance of the compressor. | 08-28-2014 |
Peter Willimowski, Robdorf DE
Patent application number | Description | Published |
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20090081495 | GAS CONTROL AND OPERATION METHOD OF A FUEL CELL SYSTEM FOR WATER AND GAS DISTRIBUTION - A gas control and operation method of a fuel cell system for improved water and gas distribution is disclosed. The present invention provides for a mechanization of a fuel cell system that allows control of the anode reactant and anode effluent through the anode portions of the fuel cell system to improve water and gas distribution on the anode side of the fuel cells that increases the voltage stability of the fuel cells. | 03-26-2009 |
20110200905 | GAS CONTROL AND OPERATION METHOD OF A FUEL CELL SYSTEM FOR WATER AND GAS DISTRIBUTION - A gas control and operation method of a fuel cell system for improved water and gas distribution is disclosed. The present invention provides for a mechanization of a fuel cell system that allows control of the anode reactant and anode effluent through the anode portions of the fuel cell system to improve water and gas distribution on the anode side of the fuel cells that increases the voltage stability of the fuel cells. | 08-18-2011 |