Abstract: A system for purifying an exhaust gas includes an engine, a lean NOx trap (LNT) mounted on the exhaust pipe, a dosing module mounted at the exhaust pipe downstream of the LNT, a selective catalytic reduction (SCR) catalyst mounted at the exhaust pipe downstream of the dosing module, and a controller for performing a denitrification (DeNOx) share between the LNT and the SCR catalyst according to a driving condition of the engine, wherein the controller predicts a NOx purifying ratio of the SCR catalyst according to the driving condition of the engine and adjusts a regeneration efficiency of the LNT based on an actual NOx purifying ratio of the SCR catalyst.

Abstract: A method of regenerating a lean NOx trap (LNT) of an exhaust purification system provided with the LNT and a selective catalytic reduction (SCR) catalyst may include: determining whether a regeneration release condition of the LNT is satisfied; determining whether a regeneration demand condition of the LNT is satisfied; and performing regeneration of the LNT if the regeneration release condition of the LNT and the regeneration demand condition of the LNT are satisfied. In particular, the regeneration demand condition of the LNT is satisfied if a NOx adsorption in the LNT is larger than or equal to a threshold NOx adsorption, and the threshold NOx adsorption is set to a minimum value of a target NOx adsorption in the LNT which changes according to a maximum NOx adsorption in the LNT in cold starting and a NOx purification efficiency of the SCR catalyst.

Abstract: A method of regenerating a lean NOx trap (LNT) of an exhaust purification system provided with the LNT and a selective catalytic reduction (SCR) catalyst may include: determining whether a regeneration release condition of the LNT is satisfied; determining whether a regeneration demand condition of the LNT is satisfied; and performing regeneration of the LNT if the regeneration release condition of the LNT and the regeneration demand condition of the LNT are satisfied. In particular, the regeneration release condition of the LNT is satisfied if all of an engine operating condition, an LNT state condition, and a lambda sensor synchronization condition are satisfied.

Abstract: A piston engine having a crankshaft and at least one connecting rod which corotates with the crankshaft, wherein the connecting rod has a small eye and a large eye. The connecting rod has a compression piston, preferably a combustion chamber piston, which is arranged on the connecting rod and can be adjusted eccentrically by means of an eccentric member and an adjusting system, preferably an adjusting linkage. The adjusting system is supported by means of at least one support piston which can be moved in a support cylinder of the connecting rod, wherein the support cylinder and the support piston form a specific leakage path. Oil of the piston engine counteracts a movement of the support piston as damping medium in the support cylinder, wherein the oil can flow along the specific leakage path between the support piston and the support cylinder.

Abstract: A method of controlling a charging pressure of an internal combustion engine having a particle filter for the treatment of exhaust gases, wherein the charging pressure is controlled to achieve a nominal charging pressure value and wherein the nominal charging pressure value is set as a function of operating parameters, wherein there is determined a first value for a charging pressure minimizing a fuel consumption, taking into account a direct influence of the charging pressure on the fuel consumption of an internal combustion engine; as well as an internal combustion engine having a particle filter for the treatment of exhaust gases, using such a control method.

Abstract: Methods for regenerating a nitrogen oxide storage catalytic converter which is monitored to ensure that it exhibits a sufficient operating temperature for its regeneration, and a regeneration occurs at a point in time in which a flow rate (v) of an exhaust flow through the nitrogen oxide storage catalytic converter (6) has at least decreased in comparison to an immediately preceding time period. A vehicle for the operation in different operating ranges, having an exhaust post-treatment, exhibiting at least one nitrogen oxide storage catalytic converter and a reformer that provides for a reformate injection in an exhaust system prior to the nitrogen oxide storage catalytic converter, and having a stored regeneration program for the nitrogen oxide storage catalytic converter, which provides for a triggering of the regeneration when an operational state is detected in which no load is demanded of the internal combustion engine, preferably when the motor is at rest.

Abstract: A method for reducing a nitrogen oxide emission in a diesel engine. The method can include taking at least one exhaust gas of an in engine combustion in a combustion chamber and: segmenting a first portion of exhaust gas enters as an internal exhaust gas recirculation from the combustion chamber of the diesel engine via an outlet valve associated with the combustion chamber, and is recirculated, via the outlet valve, from the subsequent exhaust gas tract, into the combustion chamber of the diesel engine; segmenting a second portion of exhaust gas remains in the combustion chamber and is not expelled; and segmenting a third portion of exhaust gas is recirculated as external exhaust gas recirculation via an exhaust gas recirculation valve into the combustion chamber.

Abstract: The invention relates to a valve control means (1) for an internal combustion engine, having two cams (2, 3) which are arranged one behind another on a camshaft (20), the cams (2, 3) having different cam contours, a drag lever system (4), having a first lever (5), a second lever (7) which is connected to the first lever (5) such that it can be rotated about a pivot point (6), and a third lever (8) which is connected fixedly to the first lever (5), the first lever (5) having a roller pickup (15) for a first cam (2) and the second lever (7) having a roller pickup (17) for the second cam (3), the third lever (8) having a slotted guide (9) for the rectilinear positive guidance of a valve (30), the drag lever system (4) being mounted at the pivot point (6) such that it can be adjusted on a circular path (10) about the rotational axis (21) of the camshaft (20) in a cylinder block or cylinder head of the internal combustion engine, and having a play compensation element (11) between the second lever (7) and the firs

Abstract: The invention relates to the creation of an experimental plan and the performance of a series of measurements, comprising the determination of operating data of a drive device to he tested and belonging to a vehicle by means of an automated statistical experimental plan (DoE), wherein the experimental plan includes at least the following steps: identification of one or more target variables which the drive device has to meet during test operation, and narrowing relevant values to the one or more target variables, assignment of one or more actuating variables to the drive device with one or more target variables and automated creation of the experimental plan on the basis of at least two target variables to be met.

Abstract: Method for the regeneration of a carbon particulate filter 5 in a combustion engine arrangement 1 with a combustion engine 2 and an exhaust-gas aftertreatment device 3, wherein the combustion engine arrangement 1 is switched to a heating operation for increasing the exhaust-gas temperature, which is suitable, to heat the exhaust-gas to a carbon particulate ignition temperature. By means of the operation conditions of the combustion engine arrangement 1, the necessary energy input per carbon particulate mass (specific energy input) is determined and monitored for the regeneration. When falling below a threshold value for the specific energy input, the heating operation for the regeneration of the carbon particulate filter 5 is started.

Abstract: A method of determining suitability of correction for a control logic of a selective catalytic reduction (SCR) catalyst, may include determining a suitability function of the correction based on a previous error and a current error when the correction has been performed, determining a suitability coefficient based on the suitability function of the correction, determining whether the correction may be suitable based on the number of corrections and the suitability coefficient, and resetting the control logic when the correction may be not suitable.

Abstract: Disclosed are a method of determining a correcting logic for a reacting model of an SCR catalyst, a method of correcting parameters of the reacting model of the SCR catalyst and an exhaust system to which the methods are applied. The reacting model of the SCR catalyst is defined by m parameters and has n input variables, where m and n are natural numbers with n smaller than m. The reacting model of the SCR catalyst may be adapted to predict nitrogen oxide (NOx) concentration at a downstream of the SCR catalyst at the least.

Abstract: Disclosed are a method of correcting a control logic of a selective catalytic reduction (SCR) catalyst and an exhaust system. The control logic may be adapted to calculate an injection amount of a reducing agent for the SCR catalyst at the least. The method may include detecting input variables including temperature of the SCR catalyst and exhaust flow rate, discretizing the input variables, standardizing the discretized input variables, determining whether the discretized input variables are within a correction range, and correcting the control logic of the SCR catalyst if the discretized input variables are within the correction range.

Abstract: The invention relates to the operation of a supercharged internal combustion engine (2) of a vehicle, wherein an air/volumetric flow current is adjusted by means of an adjustable swirl generator (8) arranged upstream of a supercharge system, taking into consideration an adjustable valve overlap of a cylinder of the internal combustion engine (2). The invention also relates to a vehicle drive comprising a supercharged internal combustion engine (2), a supercharge system of the internal combustion engine (2), an adjustable, variable valve train of the internal combustion engine (2), a control device and an adjustable swirl generator (8).

Abstract: Energy storage device for storing electric energy for the partial or complete electrical drive of a vehicle, wherein the device has energy storages and power storages, a drive unit of a vehicle with an energy storage device as well as method for operating an energy storage device.

Abstract: A method for the operation of a hybrid drive system is provided. The hybrid drive system has a first drive machine, for example an internal combustion engine, and a second drive machine, such as an electric machine. The hybrid drive system can also have a first gearshift sub-transmission and a second gearshift sub-transmission. The first gearshift sub-transmission can have a first input shaft that can be coupled to an output shaft using a first group of shifting gearwheel pairs, and the first input shaft can be coupled to the first drive machine. The second gearshift sub-transmission can have a second input shaft that is coupled to the output shaft using a second group of shifting gearwheel pairs, and the second input shaft can be connected with the second drive machine.

Abstract: A hydraulic hybrid safety system is provided. The hydraulic hybrid safety system is part of a hydraulic hybrid system that has an over-center bent-axis rotary pump/motor with a yoke, the yoke having a zero yoke angle and a plurality of non-zero yoke angles. The safety system includes a spring that is operable to move the yoke to the zero yoke angle when the hydraulic hybrid system loses electrical power.

Abstract: The present invention provides an internal combustion engine with a self-cleaning exhaust gas recirculation (EGR) system. The engine can have an intake, a combustion chamber, and an exhaust with the EGR system accepting exhaust gas from the exhaust and supplying exhaust gas to the intake. The internal combustion engine also has a hydrogen source in fluid communication with a hot side of the EGR system, the hydrogen source affording hydrogen to flow into and through the EGR system and remove at least a portion of carbon-containing deposits therewithin.

Abstract: A combustion engine comprising at least a cylinder, a generator having a generator shaft with a generator shaft gear, a crankshaft having a crankshaft gear and a control unit, which controls at least the generator in such a way that it is possible to avoid a tooth flank change between the generator shaft gear and the crankshaft gear during an entire combustion cycle of the combustion engine.

Abstract: Method for the regeneration of a carbon particulate filter 5 in a combustion engine arrangement 1 with a combustion engine 2 and an exhaust-gas aftertreatment device 3, wherein the combustion engine arrangement 1 is switched to a heating operation for increasing the exhaust-gas temperature, which is suitable, to heat the exhaust-gas to a carbon particulate ignition temperature. By means of the operation conditions of the combustion engine arrangement 1, the necessary energy input per carbon particulate mass (specific energy input) is determined and monitored for the regeneration. When falling below a threshold value for the specific energy input, the heating operation for the regeneration of the carbon particulate filter 5 is started.