Abstract: A power arrangement comprises an energy management arrangement, a demand interface circuit, a power distribution arrangement, a vehicle power terminal and a building power terminal. The demand interface circuit acquires at least one demand data of a group comprising: an energy need that is required of an electric vehicle, a discharge energy that is available by the electric vehicle for discharging, a charging time period that is available for charging the electric vehicle and a discharging time period that is available for discharging the electric vehicle. The energy management arrangement controls the power distribution arrangement such that vehicle electrical power is provided at the vehicle power terminal as a function of the demand data and building electrical power is provided at the building power terminal.

Abstract: An electricity distribution system includes a peer-to-peer decentralized ledger network and a plurality of distributed ledger nodes in communication within the peer-to-peer decentralized ledger network. At least one distributed ledger node of the plurality of distributed ledger nodes includes a processor that aids in executing peer-to-peer energy and financial transactions between energy suppliers and energy buyers. The processor is programmed to schedule at least one of supply of electricity from one of a plurality of available energy sources to an on-site load based on predetermined demand parameters set by an energy buyer and delivery of electricity generated by a distributed energy resource to an external load based on predetermined supply parameters set by an energy supplier.

Abstract: A method of resource management for transferring resources from providers to consumers is described. The method comprises the following steps. Supply parameters for the providers and demand parameters for the consumers are established, and constraints on the allocation of the resources are also established, as is an optimisation function for determining matches between providers and consumers. The optimisation function is solved for the established constraints using a constraint-based problem solver to determine matches between providers and consumers. Resources are then transferred from providers to consumers according to the determined matches. A computing system adapted to perform this method is also described, along with a power distribution system including such a computing system.

Abstract: A method of energy distribution from a plurality of energy sources to a plurality of loads wherein a set of selection options for a load are determined. Values are established for the selection options for each loads. The loads are then ordered into a load order according to a load ordering parameter. The energy sources are ordered in a plurality of sequences, where each sequence corresponds to a possible set of values for the selection options and wherein at least one energy source appears in more than one of the plurality of sequences. The loads are then matched with the energy sources according to the load order, with the sources in the sequence corresponding to the set of values for the selection options established for that load. A computing system designed to perform this method, and an electrical grid incorporating such a computing system are also described.

Abstract: An electricity distribution system includes a peer-to-peer decentralized ledger network and a plurality of distributed ledger nodes in communication within the peer-to-peer decentralized ledger network. At least one distributed ledger node of the plurality of distributed ledger nodes includes a processor that aids in executing peer-to-peer energy and financial transactions between energy suppliers and energy buyers. The processor is programmed to schedule at least one of supply of electricity from one of a plurality of available energy sources to an on-site load based on predetermined demand parameters set by an energy buyer and delivery of electricity generated by a distributed energy resource to an external load based on predetermined supply parameters set by an energy supplier.

Abstract: A method for controlling an engine includes the steps of, in response to a transient operating event, determining a first amount of exhaust gas recirculation (EGR) that if provided to an intake of the engine would avoid turbocharger compressor surge in a turbocharger, determining a second amount of EGR that if provided to the intake would avoid turbocharger compressor choke in the turbocharger, and determining a third amount of EGR that if provided to the intake would avoid engine smoking, and adjusting EGR provided to the intake of the engine in accordance with the determined first, second, and third amounts.

Abstract: Various methods and systems are provided for adjusting an air-fuel ratio for combustion in an engine. In one embodiment, a method for an engine (e.g., a method for controlling an engine system) comprises responding to a sensed change in a load on the engine, or indications of engine knock or misfire, by one or more of: altering a speed of the engine, adjusting a fueling flow rate into at least one cylinder of the engine, and adjusting a position of a valve in a bypass passage configured to direct compressed intake air away from cylinders of the engine to obtain a determined air-fuel ratio; and thereby maintaining an air-fuel ratio in a determined range.

Abstract: Various methods and systems are provided for adjusting an air-fuel ratio for combustion in an engine. In one embodiment, a method for an engine (e.g., a method for controlling an engine system) comprises responding to a sensed change in a load on the engine, or indications of engine knock or misfire, by one or more of: altering a speed of the engine, adjusting a fueling flow rate into at least one cylinder of the engine, and adjusting a position of a valve in a bypass passage configured to direct compressed intake air away from cylinders of the engine to obtain a determined air-fuel ratio; and thereby maintaining an air-fuel ratio in a determined range.

Abstract: Methods and systems for an engine are provided. In one example, a system for an engine comprises an exhaust passage through which exhaust gas is configured to flow from the engine, a turbocharger with a turbine positioned in the exhaust passage, an exhaust gas treatment system disposed in the exhaust passage upstream of the turbine and including at least one exhaust gas treatment device and a bypass with a bypass valve, the bypass valve configured to be adjusted to reduce exhaust gas flow through the exhaust gas treatment system in response to a transient engine operating condition, and an exhaust gas recirculation system coupled between the exhaust passage and an intake passage of the engine, the exhaust gas recirculation system including an exhaust gas recirculation passage and at least one exhaust gas recirculation valve, an inlet of the exhaust gas recirculation system positioned upstream of the exhaust gas treatment system.

Abstract: Methods and systems for an engine are provided. In one example, a system for an engine comprises an exhaust passage through which exhaust gas is configured to flow from the engine, a turbocharger with a turbine positioned in the exhaust passage, an exhaust gas treatment system disposed in the exhaust passage upstream of the turbine and including at least one exhaust gas treatment device and a bypass with a bypass valve, the bypass valve configured to be adjusted to reduce exhaust gas flow through the exhaust gas treatment system in response to a transient engine operating condition, and an exhaust gas recirculation system coupled between the exhaust passage and an intake passage of the engine, the exhaust gas recirculation system including an exhaust gas recirculation passage and at least one exhaust gas recirculation valve, an inlet of the exhaust gas recirculation system positioned upstream of the exhaust gas treatment system.

Abstract: Various methods and systems for an engine are provided. In one example, an engine system includes an exhaust passage through which exhaust gas is configured to flow from the engine, and a turbocharger with a turbine positioned in the exhaust passage. The engine system further includes an exhaust gas treatment system disposed in the exhaust passage upstream of the turbine, the exhaust gas treatment system including at least one exhaust gas treatment device and a bypass with a bypass valve, the bypass valve configured to be adjusted to reduce exhaust gas flow through the exhaust gas treatment system in response to a transient engine operating condition.

Abstract: A method for controlling an engine includes the steps of, in response to a transient operating event, determining a first amount of exhaust gas recirculation (EGR) that if provided to an intake of the engine would avoid turbocharger compressor surge in a turbocharger, determining a second amount of EGR that if provided to the intake would avoid turbocharger compressor choke in the turbocharger, and determining a third amount of EGR that if provided to the intake would avoid engine smoking, and adjusting EGR provided to the intake of the engine in accordance with the determined first, second, and third amounts.

Abstract: Various methods and systems for an engine are provided. In one example, an engine system includes an exhaust passage through which exhaust gas is configured to flow from the engine, and a turbocharger with a turbine positioned in the exhaust passage. The engine system further includes an exhaust gas treatment system disposed in the exhaust passage upstream of the turbine, the exhaust gas treatment system including at least one exhaust gas treatment device and a bypass with a bypass valve, the bypass valve configured to be adjusted to reduce exhaust gas flow through the exhaust gas treatment system in response to a transient engine operating condition.

Abstract: A method of operating a turbocharged system includes controlling speed of a turbocharger and substantially eliminating choke of a compressor coupled to a turbine by adjusting exhaust flow through a turbine wastegate, or by adjusting airflow through a compressor recirculation valve, or by adjusting a combination thereof in response to variance in parameters including compressor inlet temperature, compressor inlet pressure, and turbocharger speed.

Abstract: In accordance with one aspect of the present technique, a method of reducing pollutant emissions from a compression-ignition engine is provided. The method includes adjusting timing of fuel injection into a combustion chamber of a piston-cylinder assembly of the compression-ignition engine. The method of adjusting timing of fuel injection includes indexing a drive mechanism intercoupling a camshaft to a crankshaft by at least one tooth away from a standard position. The method of adjusting timing of fuel injection further includes adjusting a pre-stroke of a plunger of a fuel injector assembly.

Abstract: A method of operating a compression-ignition engine includes adjusting timing of fuel injection if a sensed parameter indicative of a maximum pressure within a combustion chamber varies relative to a selected pressure and if fuel injection timing is greater than a preselected timing.

Abstract: A method and apparatus for improving fuel economy in a diesel engine, by improving fuel dispersion through the injection nozzles to promote more efficient combustion. The method can also involve retarding injection timing to decrease emissions and increasing the compression ratio, and improving turbocharger performance, to increase fuel economy.

Abstract: A method and apparatus of operating a turbo-charged diesel locomotive engine to facilitate controlling pressure in an engine cylinder is provided. The method includes determining an allowable peak firing pressure for the turbo-charged diesel engine, determining an actual peak firing pressure, and comparing the allowable peak firing pressure to actual peak firing pressure to control the operation of the turbocharger for controlling peak firing pressure. The apparatus includes a diesel engine including an intake manifold, an exhaust manifold, an electronic fuel controller, a turbo-charger, and a motor-generator coupled to the turbocharger and operable to at least one of increase turbocharger rotational speed, decrease turbocharger rotational speed, and maintain turbocharger rotational speed, and a controller including a first input corresponding intake manifold air pressure and a second input corresponding to fuel injection timing for the engine and including as an output a motor-generator configuration signal.