Abstract: A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.

Abstract: A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.

Abstract: The application describes a system for an engine comprising a direct injection nozzle for injecting gaseous fuel into a cylinder of an engine in a second operating mode; an intake injection nozzle for injecting liquid fuel into an intake port of the engine in a first operating mode; and a valve gear suitable to adjust timing of opening and closing of an inlet valve. Preferential injection of a gaseous fuel such as compressed natural gas directly into the cylinder increases efficiency and allows for reduced heat exposure to the lesser used liquid gas injectors mounted in the intake port, reducing coking of these injectors.

Abstract: Method for controlling an electrical machine (14), in particular for an electric or hybrid drive train (12) of a motor vehicle (10), wherein the electrical machine (14) can provide a torque (T) both at positive and at negative speeds (n), having the steps of:—using a characteristic curve (M; G) to check whether a torque desired value (72; 74) can or may be provided by the electrical machine (14), wherein the characteristic curve (M; G) represents a limit torque with respect to the speed (n) and has a first section (A1; A4) for positive speeds and a second section (A2; A3) for negative speeds. In this case, the first section (A1; A4) and the second section (A2; A3) are arranged in the same quadrant (I; IV) of the characteristic curve (70).

Abstract: An engine method, comprising turning off a second cylinder group in response to engine load falling below a first threshold, the second cylinder group including a first outer most cylinder and its immediately adjacent cylinder and turning on the second cylinder group in response to engine load raising above a second threshold and operating a first cylinder group constantly throughout engine operation; the first cylinder group including a second outer most cylinder and its immediately adjacent cylinder. By this method, engine efficiency may increase during partial load operating conditions from low engine loads.

Abstract: A device to generate an engine noise and a method to generate the engine noise at a time period between two directly successive ignition events of an internal combustion engine wherein the engine noise increases the number of cylinders of the internal combustion engine in a virtual fashion.

Abstract: The invention relates to a method and a control unit, which makes it possible to reliably detect in an electric vehicle whether or not an electric machine is in a blocked state. For this purpose, a current rotational speed of the electric machine (1) is monitored using a control unit (7). If a non-rotating state is detected, the electric machine (1) is actuated specifically for increasing a torque. The current rotational speed is further monitored, in particular for an increase of the current rotational speed of the electric machine, at least a short-term one, for tensioning a drive train (3) against a wheel (5) blocked due to external influences, for example. If this is not the case, it is assumed that the electric machine (1) is blocked, and a corresponding blocking signal is generated.

Abstract: A turbocharged internal combustion engine is provided with at least a partially variable valve train on an intake side wherein the intake valves are controlled to optimize the actuation of a second inlet valve in relation to a first inlet valve for different load conditions.

Abstract: A method for operating an electrical system in a motor vehicle having two electrical machines connected to the electrical system via one controllable inverter each. A regulated generator mode is initiated. A first step detects a drop below a first predetermined voltage in the electrical system. A second step, on the basis of an induced freewheeling voltage expected for one of the electrical machines, selects one of the inverters and actuating such that the electrical machine connected thereto is operated in electrical freewheel, with the result that the rotation of said machine induces a freewheeling voltage in the electrical system. A third step detects the rise above a second predetermined voltage for the induced electrical freewheeling voltage available in the electrical system. A fourth step actuates the inverter of the first electrical machine such that the first electrical machine connected thereto is operated in regulated generator mode.

Abstract: A method to operate a split coolant circuit of a combustion engine wherein a cylinder head coolant jacket and an engine block coolant jacket are provided in series with a pump delivering coolant to an inlet of the cylinder head coolant jacket without being directly connected to an inlet of the engine block coolant jacket. This allows for 100% of the pump flow rate to be delivered to the cylinder head coolant jacket before division of coolant flow occurs for various engine operating conditions.

Abstract: An engine includes a first turbine fluidically coupled to a first group of adjacent cylinders, and a second turbine fluidically coupled to a second group of adjacent cylinders. In this engine, the cylinders of the first and second groups are arranged along a line. The engine also includes a variable valve-lift system configured to admit at least air to the first group of cylinders during reduced engine-load conditions, but to stop admitting air to the second group of cylinders during the reduced engine-load conditions.

Abstract: Method for controlling an electrical machine (14), in particular for an electric or hybrid drive train (12) of a motor vehicle (10), wherein the electrical machine (14) can provide a torque (T) both at positive and at negative speeds (n), having the steps of: using a characteristic curve (M; G) to check whether a torque desired value (72; 74) can or may be provided by the electrical machine (14), wherein the characteristic curve (M; G) represents a limit torque with respect to the speed (n) and has a first section (A1; A4) for positive speeds and a second section (A2; A3) for negative speeds. In this case, the first section (A1; A4) and the second section (A2; A3) are arranged in the same quadrant (I; IV) of the characteristic curve (70).

Abstract: In a method for determining a power limiting value for an electric machine in a vehicle, the electric machine being assigned an energy storage device, an intermediate power value is calculated from a maximally allowable current of the energy storage device and an instantaneous voltage. A corrected intermediate power value is determined by adding at least one power loss to the intermediate power value. A first correction value is determined for reducing the absolute value of the corrected intermediate power value if an instantaneous power of the energy storage device is greater than the absolute value of the calculated intermediate power value. The power limiting value is determined by superimposing the first correction value on the corrected intermediate power value.

Abstract: A method for operating an internal combustion engine is provided. The method includes during a first operating condition, operating two primary cylinders and two secondary cylinders to perform combustion, the two primary and secondary cylinders arranged in an inline configuration, the two primary cylinder adjacent to one another, the two secondary cylinders adjacent to one another, and the secondary cylinders positioned 175°-185° out of phase relative to the two primary cylinders and during a second operating condition, selectively deactivating the two secondary cylinders to perform combustion in only the two primary cylinders.

Abstract: A device to generate an engine noise and a method to generate the engine noise at a time period between two directly successive ignition events of an internal combustion engine wherein the engine noise increases the number of cylinders of the internal combustion engine in a virtual fashion.

Abstract: A method to operate a split coolant circuit of a combustion engine wherein a cylinder head coolant jacket and an engine block coolant jacket are provided in series with a pump delivering coolant to an inlet of the cylinder head coolant jacket without being directly connected to an inlet of the engine block coolant jacket. This allows for 100% of the pump flow rate to be delivered to the cylinder head coolant jacket before division of coolant flow occurs for various engine operating conditions.

Abstract: The present invention relates to a method (50) for operating an electrical system (44), particularly in a motor vehicle (10), wherein the electrical system (44) has at least two electrical machines (14, 34) which are connected to the electrical system (44) via one controllable inverter (32, 42) each, wherein a regulated generator mode for a first instance of the electrical machines (14, 34) is initiated (60), characterized in that a first step (54) involves detection of a drop below a first prescribable voltage value for the electrical voltage available in the electrical system (44), and then a second step (56), on the basis of an induced freewheeling voltage that is to be expected for one of the electrical machines (14, 32), involves one of the inverters (32, 42) being selected, which is associated with an electrical machine (14, 32), and being actuated such that the electrical machine (14, 34) connected thereto is operated in electrical freewheel, with the result that the rotation of said machine causes it

Abstract: The application describes a system for an engine comprising a direct injection nozzle for injecting gaseous fuel into a cylinder of an engine in a second operating mode; an intake injection nozzle for injecting liquid fuel into an intake port of the engine in a first operating mode; and a valve gear suitable to adjust timing of opening and closing of an inlet valve. Preferential injection of a gaseous fuel such as compressed natural gas directly into the cylinder increases efficiency and allows for reduced heat exposure to the lesser used liquid gas injectors mounted in the intake port, reducing coking of these injectors.

Abstract: The invention relates to a method and a control unit, which makes it possible to reliably detect in an electric vehicle whether or not an electric machine is in a blocked state. For this purpose, a current rotational speed of the electric machine (1) is monitored using a control unit (7). If a non-rotating state is detected, the electric machine (1) is actuated specifically for increasing a in torque. The current rotational speed is further monitored, in particular for an increase of the current rotational speed of the electric machine, at least a short-term one, for tensioning a drive train (3) against a wheel (5) blocked due to external influences, for example. If this is not the case, it is assumed that the electric machine (1) is blocked, and a corresponding blocking signal is generated.

Abstract: Systems and methods presented herein provide for the processing of PostScript print jobs that are not DSC compliant. A single stream of a PostScript data is processed and divided into multiple streams (e.g., page objects), each comprising data operable to render an individual page. In one embodiment, a method includes receiving the PostScript data stream and identifying object tokens in the PostScript data stream. An object token is operable to generate a PostScript object or execute a PostScript operation. A portion of the object tokens may be operable to define page boundaries in the PostScript data stream. The method also includes analyzing the object tokens to parse the object tokens into a plurality of page objects, separating the page objects into a plurality of data paths, and parallel processing the page objects through the data paths to rasterize the PostScript data stream on a page by page basis.