The invention relates to an exhaust gas conducting system for a gasoline engine, comprising an exhaust gas line which can be connected to an exhaust manifold of the gasoline engine, an inlet line which can be connected to an intake manifold of the gasoline engine, and a turbine which is arranged in the exhaust gas line. At least one exhaust gas recirculation line is provided which opens into the inlet line, and the exhaust gas line has a bypass line which opens into the exhaust gas line downstream of the turbine, wherein a) the exhaust gas recirculation line branches off upstream of the turbine, and the bypass line branches off to the exhaust gas recirculation line or b) the bypass line branches off upstream of the turbine, and the exhaust gas recirculation line branches off to the bypass line, wherein c) at least one particle filter is arranged in the exhaust gas recirculation line or in the bypass line upstream of the exhaust gas recirculation line or in the exhaust gas line upstream of the exhaust gas recirculation line.

The invention relates to an exhaust gas conducting system for a gasoline engine, comprising an exhaust gas line which can be connected to an exhaust manifold of the gasoline engine, an inlet line which can be connected to an intake manifold of the gasoline engine, and a turbine which is arranged in the exhaust gas line. At least one exhaust gas recirculation line is provided which opens into the inlet line, and the exhaust gas line has a bypass line which opens into the exhaust gas line downstream of the turbine, wherein a) the exhaust gas recirculation line branches off upstream of the turbine, and the bypass line branches off to the exhaust gas recirculation line or b) the bypass line branches off upstream of the turbine, and the exhaust gas recirculation line branches off to the bypass line, wherein c) at least one particle filter is arranged in the exhaust gas recirculation line or in the bypass line upstream of the exhaust gas recirculation line or in the exhaust gas line upstream of the exhaust gas recirculation line.

An exhaust gas recirculation system for a gasoline engine, including an exhaust gas line, which can be connected to an exhaust manifold of the gasoline engine and which includes a turbine, and an inlet line, which can be connected to an intake manifold of the gasoline engine and which includes a compressor. A main exhaust gas catalytic converter is provided in the exhaust gas line, and at least one exhaust gas recirculation line_I is provided which branches off from the exhaust gas line upstream of the turbine and opens into the inlet line downstream of the compressor. At least one particle filter_I is provided which is placed in the exhaust gas recirculation line_I or in the exhaust gas line upstream of the exhaust gas recirculation line_I. The particle filter_I has a 3/Ox coating, and at least one cooler_I is provided within the exhaust gas recirculation line_I downstream of the at least one particle filter.

An exhaust gas recirculation system for a gasoline engine, including an exhaust gas line, which can be connected to an exhaust manifold of the gasoline engine and which includes a turbine, and an inlet line, which can be connected to an intake manifold of the gasoline engine and which includes a compressor. A main exhaust gas catalytic converter is provided in the exhaust gas line, and at least one exhaust gas recirculation line_I is provided which branches off from the exhaust gas line upstream of the turbine and opens into the inlet line downstream of the compressor. At least one particle filter_I is provided which is placed in the exhaust gas recirculation line_I or in the exhaust gas line upstream of the exhaust gas recirculation line_I. The particle filter_I has a 3/Ox coating, and at least one cooler_I is provided within the exhaust gas recirculation line_I downstream of the at least one particle filter.

A system includes an internal combustion engine having a number of cylinders, with at least one of the cylinders plumbed to have a complete recycle of the exhaust gases from the cylinder. The system further includes the completely recycled cylinder having an EGR stroke cycle, and the non-recycled cylinders of the engine having an exhaust stroke cycle. The system includes the EGR stroke cycle being distinct from the exhaust stroke cycle. An amount and composition of the exhaust gases from the recycled cylinder are distinct from the amount and composition of the exhaust gases from the non-recycled cylinders, at least at certain operating conditions of the engine.

A system includes an internal combustion engine having a number of cylinders, with at least one of the cylinders plumbed to have a complete recycle of the exhaust gases from the cylinder. The system further includes the completely recycled cylinder having an EGR stroke cycle, and the non-recycled cylinders of the engine having an exhaust stroke cycle. The system includes the EGR stroke cycle being distinct from the exhaust stroke cycle. An amount and composition of the exhaust gases from the recycled cylinder are distinct from the amount and composition of the exhaust gases from the non-recycled cylinders, at least at certain operating conditions of the engine.

An emissions control system for a gasoline engine having an exhaust gas conduit which can be connected to an exhaust manifold of the gasoline engine, having an inlet conduit which can be connected to an inlet manifold of the gasoline engine and having a turbine arranged in the exhaust gas conduit. At least one exhaust gas recirculation conduit is provided, which opens into the inlet conduit, and the exhaust gas conduit has at least one bypass conduit, which opens into the exhaust gas conduit downstream of the turbine, wherein a) the exhaust gas recirculation conduit branches off upstream of the turbine and the bypass conduit branches off at the exhaust gas recirculation conduit or b) the bypass conduit branches off upstream of the turbine and the exhaust gas recirculation conduit branches off at the bypass conduit, wherein c) at least one particulate filter, is arranged in the exhaust gas recirculation conduit or in the bypass conduit upstream of the exhaust gas recirculation conduit or in the exhaust gas conduit upstream of the exhaust gas recirculation conduit.

An emissions control system for a gasoline engine having an exhaust gas conduit which can be connected to an exhaust manifold of the gasoline engine, having an inlet conduit which can be connected to an inlet manifold of the gasoline engine and having a turbine arranged in the exhaust gas conduit. At least one exhaust gas recirculation conduit is provided, which opens into the inlet conduit, and the exhaust gas conduit has at least one bypass conduit, which opens into the exhaust gas conduit downstream of the turbine, wherein a) the exhaust gas recirculation conduit branches off upstream of the turbine and the bypass conduit branches off at the exhaust gas recirculation conduit or b) the bypass conduit branches off upstream of the turbine and the exhaust gas recirculation conduit branches off at the bypass conduit, wherein c) at least one particulate filter, is arranged in the exhaust gas recirculation conduit or in the bypass conduit upstream of the exhaust gas recirculation conduit or in the exhaust gas conduit upstream of the exhaust gas recirculation conduit.

Systems and methods are provided for controlling exhaust gas recirculation (EGR). In one example, an engine system includes a first EGR valve coupling an exhaust manifold to an engine exhaust system, a second EGR valve coupling the exhaust manifold to an engine intake system, and a control unit. The control unit selectively adjusts a position of the first EGR valve based on a target amount, and adjusts a position of the second EGR valve based on the target amount and a position of the first EGR valve. Responsive to a first degradation condition of the first EGR valve, the control unit adjusts the position of the second EGR valve based on the target amount and based on a pressure of the first exhaust manifold, and responsive to a second degradation condition of the first EGR valve, adjusts the position of the second EGR valve based on the target amount.

Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, during a cold start, a method may include adjusting a position of a first valve disposed in an exhaust gas recirculation (EGR) passage based on an engine operating condition, the EGR passage coupled between the first exhaust manifold coupled to a first set of exhaust valves and the intake passage, upstream of a compressor. As one example, the engine operating condition may include an engine temperature or a temperature of a catalyst disposed in the exhaust passage.