Patent application number | Description | Published |
20090013687 | SYSTEM AND METHOD FOR MONITORING OPERATION OF A TURBOCHARGED ENGINE - A method and system for monitoring the operation of a multicylinder, turbocharged reciprocating engine with an onboard controller includes monitoring one or more operating parameters predictive of the turbocharger's output, and generating a parametric output signal corresponding to the value of the sampled operating parameter. Actual mass flow is determined with a flow detection system, and then the charge air mass flow is compared with a predetermined flow rate corresponding to the monitored operating parameter, such as turbocharger speed or turbocharger pressure ratio. A charge air condition flag is set if the actual charge air flow rate is less than a predetermined flow rate based upon the parametric output signal. | 01-15-2009 |
20090024295 | SYSTEM AND METHOD FOR REMOTELY MONITORING A TURBOCHARGED ENGINE - A method and system for remotely monitoring the operation of a multicylinder, turbocharged reciprocating engine includes monitoring one or more operating parameters predictive of the turbocharger's output, and generating a parametric output signal corresponding to the value of the sampled operating parameter. The parametric output signal is transmitted via telemetry to a remote diagnostic center, where actual mass flow is determined with a flow detection system, and then the charge air mass flow is compared with a predetermined flow rate corresponding to the monitored operating parameter, such as turbocharger speed or turbocharger pressure ratio. A condition flag is set if the actual charge air flow rate is less than a predetermined flow rate based upon the parametric output signal. | 01-22-2009 |
20130283766 | ENGINE UTILIZING A PLURALITY OF CONTROL VALVES, AND A RELATED METHOD THEREOF - In accordance with the embodiments of the present invention, an engine is disclosed. The engine includes at least one donor cylinder and at least one non-donor cylinder coupled to an intake manifold feeding intake air and an exhaust manifold. The exhaust manifold is configured to carry an engine exhaust emission from the donor cylinder and the non-donor cylinder. The engine also includes an exhaust gas recirculation manifold extending from the donor cylinder to the intake manifold for recirculating a donor cylinder exhaust emission from the donor cylinder to the donor, and non-donor cylinders via the intake manifold. The engine further includes an after-treatment system and a sensor configured to sense a temperature of the engine exhaust emission and a device configured to receive a sensing signal from the sensor and to control a parameter of the engine and a component of the engine in response to the sensing signal. | 10-31-2013 |
20140109571 | SYSTEM AND METHOD FOR CONTROLLING EXHAUST EMISSIONS AND SPECIFIC FUEL CONSUMPTION OF AN ENGIINE - A method includes combusting air within a plurality of cylinders of an internal combustion engine by injecting a fuel into the plurality of cylinders. The method further includes expanding a first portion of an exhaust gas generated from the plurality of combustion cylinders via a turbine. The method further includes controlling at least one of feeding a second portion of the exhaust gas via an exhaust channel bypassing the turbine; and recirculating a third portion of the exhaust gas to the plurality of combustion cylinders via a recirculation channel, as a function of an intake manifold air temperature and pressure at which the engine is operated. | 04-24-2014 |
20150053176 | METHODS AND SYSTEMS FOR AIR FUEL RATIO CONTROL - Various methods and systems for an engine driving an electrical power generation system are provided. In one embodiment, an example method for an engine driving an electrical power generation system includes adjusting an engine speed in response to a relationship between oxygen and fuel while maintaining a power transmitted to the electrical power generation system. | 02-26-2015 |
20150176509 | SYSTEM AND METHOD FOR CONTROLLING A DUAL FUEL ENGINE - A method includes receiving a plurality of signals from a plurality of sensors coupled to a dual fuel engine. The method further includes altering an actual speed of the dual fuel engine to obtain a predetermined air-fuel ratio in response to a changed operating condition of the dual fuel engine determined based on the plurality of signals, so as to maintain operation of the dual fuel engine between knock and misfire conditions. | 06-25-2015 |
20160032859 | SYSTEM AND METHOD FOR CONTROLLING OPERATION OF AN ENGINE - A method involves comparing a determined operating parameter of an engine, with a predefined operating parameter. The method further involves controlling a fuel source and an ignition source of the engine so as to operate at least one engine cylinder in a skip fire mode for at least one cycle of a crank shaft when the determined operating parameter is greater than the predefined operating parameter. The controlling involves transitioning the fuel source from a normal mode to the skip fire mode for the at least one cycle of the crank shaft either before transitioning the ignition source from the normal mode to the skip fire mode or when the ignition source is operated in the normal mode. | 02-04-2016 |
20160084181 | METHOD AND SYSTEMS FOR EGR CONTROL - Various methods and systems are provided for estimating fresh intake air flow. In one example, a system comprises an engine having an intake manifold to receive fresh intake air and an exhaust gas recirculation (EGR) system to supply EGR to the intake manifold, where flow of EGR through the EGR system is controlled by one or more exhaust valves. The system further includes a controller configured to adjust a position of the one or more exhaust valves based on an estimated fresh intake air flow rate, where during a first set of operating conditions, the fresh intake air flow rate is estimated based on a total gas flow rate into the engine and further based on a current position of the one or more exhaust valves, intake manifold pressure, air-fuel ratio, and fuel flow to one or more cylinders of the engine. | 03-24-2016 |
20160097318 | METHOD AND SYSTEMS FOR ADJUSTING A TURBINE BYPASS VALVE - Various methods and systems are provided for adjusting a turbine boost control actuator based on a single common reference value. In one example, a method for an engine includes adjusting a turbine boost control actuator to control an intake manifold pressure to a limit, the limit based at least in part on one or more of peak cylinder pressure, turbine speed, and a pressure difference across a turbine. | 04-07-2016 |