Patent application number | Description | Published |
20120253638 | METHOD FOR ADAPTING A FUEL/AIR MIXTURE FOR AN INTERNAL COMBUSTION ENGINE - A method for adapting a mixture for a pilot control process for setting a fuel/air mixture for operating an internal combustion engine. The method includes determining a current measuring point from an air and fuel quantity in which a predefined lambda is achieved, determining a current operating range in which the measuring point lies, determining a deviation of the measuring point from the operating point lying in the current operating range, determining a corrected operating point between the operating point and the measuring point, and determining corrected parameters of a parameterized relationship from the corrected operating point and the operating points and parameter values of the preceding adaptation step not lying in the current operating range, and permits adaptation of a mixture without separation of load/rotational speed ranges for adaptation of the offset and of the factor of the linear relationship of air quantity and fuel quantity. | 10-04-2012 |
20130118243 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE - In a method for operating an internal combustion engine having multiple cylinders, a cylinder to be checked is diagnosed for an injection quantity error. During a normal operation, a first air/fuel ratio is predefined for the multiple cylinders, and a first uneven running is ascertained. During an adjustment operation, a second air/fuel ratio for the cylinder to be checked is predefined during a number of working cycles. During the adjustment operation, a second uneven running is ascertained. The injection quantity error is ascertained for the cylinder to be checked as a function of the first uneven running and the second uneven running. | 05-16-2013 |
20140121950 | METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE HAVING A PLURALITY OF CYLINDERS IN HOMOGENEOUS OPERATION - A method is described for operating an internal combustion engine, having a plurality of cylinders in an homogeneous operation, in which an exhaust gas lambda value and an unsteady running of the internal combustion engine are recorded, a mixture composition being cyclically varied, at least intermittently. In a test operation, the mixture composition is cyclically varied, in a selected cylinder, about a determined lambda value, whereas meanwhile the mixture composition is held constant in the remaining cylinders. From the magnitude of a cyclical fluctuation of the unsteady running or of a variable characterizing this, one may conclude upon a trimming of the mixture composition in the selected cylinder. | 05-01-2014 |
20140358403 | METHOD FOR CYLINDER EQUALIZATION OF A LAMBDA-CONTROLLED INTERNAL COMBUSTION ENGINE, IN PARTICULAR OF A MOTOR VEHICLE - In a method for cylinder equalization of a lambda-controlled internal combustion engine of a motor vehicle, cylinders to be tested are trimmed with respect to the mixture composition of metered fuel, and the cylinder equalization is carried out on the basis of an uneven running or uneven running change of the internal combustion engine caused by the trimming. In addition, the uneven running or uneven running change is detected in a reference state of the internal combustion engine. The uneven runnings or uneven running changes detected during successive trimmings of the cylinders to be tested are and compared to the uneven running values detected in the reference state. | 12-04-2014 |
Patent application number | Description | Published |
20090312015 | Method for Blocking Roaming-Steering Mechanisms - The invention relates to a method for blocking roaming steering mechanisms. According to said method, a foreign cellular device ( | 12-17-2009 |
20100267392 | REDUCTION OF CALL SET-UP TIME IN MOBILE TERMINATING CALLS WITH "HOME AREA" RATES IN A LAND MOBILE NETWORK - The invention relates to a method for setting up a mobile radio connection to a mobile station (MS) in a cellular mobile radio network. According to said method, each cell of the mobile radio network can be identified by an identification character and a plurality of cells form a localisation area of the mobile radio network. In order to localise the mobile station (MS) inside a localisation area, paging is regularly carried out from a switching centre (MSC) in pre-definable time intervals, and a first mobile radio connection to the mobile station (MS) is set up by the paging, whereupon a paging response message is generated from the mobile station (MS) and transmitted over the existing first radio connection. When the paging response message is received, said first mobile radio connection to the mobile station (MS) from the mobile switching centre (MSC) is maintained for a pre-determinable time span, said first mobile radio connection between the mobile switching centre (MSC) and the mobile station (MS) being used to set up a mobile terminating call (MTC) when a call setup from or to the mobile station (MS) is triggered within the time span from the reception of the paging response message. | 10-21-2010 |
20110014931 | METHOD FOR DELIVERING A SHORT MESSAGE IN A MOBILE COMMUNICATIONS SYSTEM - The invention relates to a method for delivering a short message in a mobile communications system, in which the short message sent from a mobile station is received by an SMS-Service-Centre, SMS-C, and forwarded to a corresponding recipient, wherein the SMS-C is addressed by means of an SMS-C address in the mobile communications system. The invention is distinguished by the fact that an SMS-C address recognized as erroneous is corrected on the part of the mobile communications system, and the delivery of the short message is continued with the corrected SMS-C address. | 01-20-2011 |
Patent application number | Description | Published |
20080202110 | Hydraulic Control Arrangement - The invention discloses a hydraulic control arrangement for controlling a number of consumers, particularly of a mobile working machine. In addition to the consumers of the control arrangement, an additional consumer should be able to be connected to a power beyond port. All consumers and power beyond consumers are supplied with hydraulic fluid by a pump. An input pressure scale is provided downstream of the pump, and the greater of the load pressures of the consumers or of the at least one power beyond consumer is applied to the control port of said input pressure scale. | 08-28-2008 |
20090056531 | LIFTING MECHANISM, AND METHOD FOR TRIGGERING A LIFTING MECHANISM - A lifting mechanism has a continuously variable lifting mechanism valve, with a multi-position valve, by way of which a lifting cylinder can be made to communicate with a pump or a tank. In the flow path of the pressure fluid from the multi-position valve to a pressure chamber, effective in the “carrying” direction, of the lifting cylinder, there is a relief pressure limiting valve, by way of which a relief pressure can be proportionally set. During relief pressure regulation, a metering aperture, which is predetermined by the proportionally variable multi-position valve, is opened, so that the volumetric flow of pressure fluid to the tank is minimized via the pressure limiting valve. | 03-05-2009 |
20120201640 | Mobile Working Machine with a Control Device, Comprising a Working Arm and Methods for Controlling the Operating Point of a Working Arm of a Mobile Working Machine - The disclosure relates to a mobile working machine with a control device, comprising a working arm, and methods for controlling the operating point of a working arm of a mobile working machine. According to the disclosure, the mobile working machine with the control device, comprising a working arm, has a working arm, a first end of which is hinged to a superstructure of the working machine. A tool is movably arranged on a second end of the working arm at an operating point. At least one first inclination sensor lies on the superstructure and at least one second inclination sensor lies on the working arm. In addition, at least one hydraulic cylinder is provided for changing the position of the operating point, said cylinder being hinged between the superstructure and the working arm. Furthermore, a control unit for processing signals from the at least two inclination sensors is provided to determine an operating point as a reference operating point and to ascertain a position change of the operating point by calculating a cylinder stroke on the basis of a volume flow into or out of the hydraulic cylinder. | 08-09-2012 |
20120285318 | Lifting Mechanism - A lifting mechanism is disclosed which is operated hydraulically and is configured to be mounted or used on a mobile working machine. The lifting mechanism or its hydraulics have a relieving pressure limiting valve which can be regulated as a function of the ground profile. For this purpose, a directly or indirectly measuring sensor arrangement is provided. Furthermore, a method is disclosed which serves for regulating a relieving pressure of a lifting mechanism of a mobile working machine. The method has the following steps (i) detection of the ground profile via a sensor arrangement, and (ii) limitation of the relieving pressure of a relieving line by setting an opening pressure of an electronically activatable proportional relieving pressure limiting valve via a control unit as a function of signals from the sensor arrangement. | 11-15-2012 |