Abstract: A voltage supply system for supplying an electric consumer with an electric target voltage and an electric target energy, with a plurality of automotive traction battery modules. Each automotive traction battery module has an electric actual voltage and an electric actual energy. The automotive traction battery modules are interconnected dependent on the electric target voltage, the electric actual voltage, the electric target energy, and the electric actual energy in series connections and/or in a parallel connection to form at least one traction battery module group.

Abstract: A method for operating a system having a plurality of internal combustion engines coupled together such that then outputs are drawn off by a common load, a downstream individual exhaust gas aftertreatment device, in which the exhaust gas of a particular engine undergoes an individual exhaust gas aftertreatment, positioned downstream of each engine, or a common exhaust gas aftertreatment device, in which the exhaust gas undergoes a common exhaust gas aftertreatment, positioned downstream of to the engine. To regenerate an exhaust gas aftertreatment device, the drive output of one engine is reduced, the temperature of the exhaust gas is increased, and the drive output of a second engine is increased such that the drive output reduction is at least partially compensated for.

Abstract: A voltage supply system for supplying an electric consumer with an electric target voltage and an electric target energy, with a plurality of automotive traction battery modules. Each automotive traction battery module has an electric actual voltage and an electric actual energy. The automotive traction battery modules are interconnected dependent on the electric target voltage, the electric actual voltage, the electric target energy, and the electric actual energy in series connections and/or in a parallel connection to form at least one traction battery module group.

Abstract: A method for operating a system having a plurality of internal combustion engines coupled together such that then outputs are drawn off by a common load, a downstream individual exhaust gas aftertreatment device, in which the exhaust gas of a particular engine undergoes an individual exhaust gas aftertreatment, positioned downstream of each engine, or a common exhaust gas aftertreatment device, in which the exhaust gas undergoes a common exhaust gas aftertreatment, positioned downstream of to the engine. To regenerate an exhaust gas aftertreatment device, the drive output of one engine is reduced, the temperature of the exhaust gas is increased, and the drive output of a second engine is increased such that the drive output reduction is at least partially compensated for.

Abstract: A method for determining a cylinder pressure-crankshaft position association for an internal combustion engine, including metrological detection of the crankshaft angle; metrological detection of the cylinder pressure; calculation of a cylinder volume as a function of the crankshaft angle; determination of a curve for the logarithmic cylinder pressure over the logarithmic cylinder volume as a function of the crankshaft angle; analysis of the curve, and determination of an offset value for the crankshaft angle for determining a temporally exact cylinder pressure-crankshaft position association.

Abstract: A vehicular heat exchanger processes a exhaust gas recirculation flow. A method to manage combustion by-product contaminant deposits within the heat exchanger includes repeatedly cycling a flow control device controlling the exhaust gas recirculation flow through the heat exchanger from an original position to an intermediate position and back to the original position. The original position is determined based upon a required exhaust gas recirculation flow into an intake manifold.

Abstract: A method for operating an internal combustion engine configured to operate lean of stoichiometry includes reducing temperature of a portion of an exhaust gas feedstream recirculated to an intake system of the engine, and reducing mass flowrate of particulate matter and hydrocarbons borne in the recirculated portion of the exhaust gas feedstream upstream of the heat exchanger effective to reduce deposition of particulate matter and hydrocarbons onto and adhesion to surface areas of the heat exchanger.

Abstract: A method for managing thermal energy in an internal combustion engine including an exhaust gas recirculation system and an engine cooling system includes recirculating a portion of an exhaust gas through the exhaust gas recirculation system that is in thermal communication with a first side of a thermoelectric device, flowing an engine coolant into thermal communication with a second side of a thermoelectric device, and controlling electric current between an electrical energy storage device and the thermoelectric device to transfer thermal energy between the recirculated exhaust gas and the engine coolant.

Abstract: A cleaning mechanism for and method of autonomously removing deposits from the interior surface of a tube comprises a cleaning member secured relative to the surface and preferably, an active material element drivenly coupled to or engaged with the member so as to selectively cause the member to translate, thereby removing deposits from the surface.

Abstract: A vehicular heat exchanger processes a exhaust gas recirculation flow. A method to manage combustion by-product contaminant deposits within the heat exchanger includes repeatedly cycling a flow control device controlling the exhaust gas recirculation flow through the heat exchanger from an original position to an intermediate position and back to the original position. The original position is determined based upon a required exhaust gas recirculation flow into an intake manifold.

Abstract: A method for operating an internal combustion engine configured to operate lean of stoichiometry includes reducing temperature of a portion of an exhaust gas feedstream recirculated to an intake system of the engine, and reducing mass flowrate of particulate matter and hydrocarbons borne in the recirculated portion of the exhaust gas feedstream upstream of the heat exchanger effective to reduce deposition of particulate matter and hydrocarbons onto and adhesion to surface areas of the heat exchanger.

Abstract: A heat exchanger device for an exhaust gas recirculation system of an internal combustion engine includes a heat exchange device including a first surface and a second surface. The first surface is in fluid contact with a recirculated portion of exhaust gas flowing in an exhaust system and the second surface is in fluid contact with a second fluid. The first surface is subjected to a surface treatment effective to reduce adhesive properties that relate to surface tension of particulate matter that precipitates from the recirculated portion of the exhaust gas.

Abstract: A method for managing thermal energy in an internal combustion engine including an exhaust gas recirculation system and an engine cooling system includes recirculating a portion of an exhaust gas through the exhaust gas recirculation system that is in thermal communication with a first side of a thermoelectric device, flowing an engine coolant into thermal communication with a second side of a thermoelectric device, and controlling electric current between an electrical energy storage device and the thermoelectric device to transfer thermal energy between the recirculated exhaust gas and the engine coolant.

Abstract: A heat exchanger of motor vehicle processes a gas flow including combustion exhaust gas. Combustion by-product deposit build-up within the heat exchanger is reduced by maintaining a minimum gas flow velocity within the heat exchanger by reducing heat exchanger total gas flow cross section to locally increase a gas flow velocity.

Abstract: A cleaning mechanism for and method of autonomously removing deposits from the interior surface of a tube comprises a cleaning member secured relative to the surface and preferably, an active material element drivenly coupled to or engaged with the member so as to selectively cause the member to translate, thereby removing deposits from the surface.

Abstract: A heat exchanger of motor vehicle processes a gas flow including combustion exhaust gas. Combustion by-product deposit build-up within the heat exchanger is reduced by maintaining a minimum gas flow velocity within the heat exchanger by reducing heat exchanger total gas flow cross section to locally increase a gas flow velocity.