Patent application number | Description | Published |
20110015032 | METHOD AND CONTROL DEVICE FOR OPERATING A HYBRID DRIVE - In a control unit and a method for operating a hybrid drive arrangement ( | 01-20-2011 |
20110273812 | CONTROLLING CURRENT FLOW BY A COIL DRIVE OF A VALVE USING A CURRENT INTEGRAL - A device (100) and to a method allow for a direct injection valve having a coil drive (110) to reduce in particular the pulse to pulse variation of the volume of fuel injected by the direct injection valve by a control also based on a current integral of the coil drive (110), in particular during a boost phase of a current activation profile of the coil drive (110). The method can be carried out by a computer program. | 11-10-2011 |
20120097133 | METHOD AND DEVICE OF OPERATING AN INTERNAL COMBUSTION ENGINE - An internal combustion engine has at least one injection valve for delivering fluid, which has an electromagnetic actuator. A final stage unit is designed for creating a current profile for triggering the electromagnetic actuator with at least one given profile parameter (PP). Upon achieving magnetic saturation of a magnetic circuit of the electromagnetic actuator an assigned saturation current (I_sat_mes) is determined and at least one profile parameter (PP) is adjusted depending on the saturation current (I_sat_mes) thus determined and a given reference saturation current. | 04-26-2012 |
20120109500 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In a method for operating an internal combustion engine having an intake tract and one injection valve per cylinder, a lambda controller having an associated lambda sensor for correcting an air-fuel ratio in the combustion chamber, an engine operating temperature is detected and a air mass target value in the combustion chamber is determined as a function of an engine operating state. When the lambda controller is deactivated, a first adaptation value is determined as a function of the captured operating temperature, of the determined air mass target value, and a prescribed first weighting value. A second adaptation value is further determined as a function of the determined air mass target value and a prescribed second weighting value. The metering of the fuel mass and/or a model of the air mass fed into the combustion chamber is corrected as a function of the first and second adaptation value. | 05-03-2012 |
20120116702 | DETERMINING THE CLOSING TIME OF A FUEL INJECTION VALVE BASED ON EVALUATING THE ACTUATION VOLTAGE - A method for determining a closing time of a valve having a coil drive, in particular a direct injection valve for an engine of a motor vehicle, has the steps: (a) switching off a current flow through a coil (L_inj) of the coil drive, so that the coil (L_inj) is depowered, (b) capturing a time curve ( | 05-10-2012 |
20120185147 | METHOD AND DEVICE FOR DETERMINING A FUEL PRESSURE PRESENT AT A DIRECT INJECTION VALVE - A method for determining a fuel pressure present at a direct injection valve comprising a solenoid drive comprises (a) detecting a voltage induced in the solenoid drive within a time span comprising a closing point in time of the direct injection valve, and (b) determining the fuel pressure based on the detected induced voltage. Further, a corresponding device, a common rail system, a motor vehicle, and a computer program for determining the fuel pressure of a valve comprising a solenoid drive are provided. | 07-19-2012 |
20130104636 | ELECTRIC ACTUATION OF A VALVE BASED ON KNOWLEDGE OF THE CLOSING TIME OF THE VALVE | 05-02-2013 |
20150226148 | Electric Actuation of a Valve Based on Knowledge of the Closing Point and Opening Point of the Valve - A method for determining an effective injection time of a valve having a coil drive includes determining an opening time of the valve, determining a closing time of the valve, and determining the effective injection time of the electric actuation of the valve for an injection operation based on the defined opening time and the defined closing time. | 08-13-2015 |