Abstract: A method of mapping and modeling an engine during an engine development process includes testing the engine over a plurality of actual engine operating conditions and gathering actual engine data corresponding to the actual engine operating conditions. A plurality of parameter functions are determined based on the actual engine data, each of the plurality of parameter functions correspond to an engine operating parameter. A plurality of combustion parameters are generated for a plurality of engine operating conditions that include the plurality of actual engine operating conditions and a plurality of virtual engine operating conditions. An engine simulation model is calibrated based on the plurality of combustion parameters and a plurality of engine maps are generated using the simulation model.

Abstract: Torque estimation techniques in the real-time basis for engine control and diagnostics applications using the measurement of crankshaft speed variation are disclosed. Two different torque estimation approaches are disclosed—“Stochastic Analysis” and “Frequency Analysis.” An estimation model function consisting of three primary variables representing crankshaft dynamics such as crankshaft position, speed, and acceleration is used for each estimation approach. The torque estimation method are independent of the engine inputs (air, fuel, and spark). Both approaches have been analyzed and compared with respect to estimation accuracy and computational requirements, and feasibility for the real-time engine diagnostics and control applications. Results show that both methods permits estimations of the indicated torque based on the crankshaft speed measurement while providing not only accurate but also relatively fast estimations during the computation processes.

Abstract: The present invention provides a system comprising an atomizer for producing a mist of sub-micron sized fluid droplets. Also provided by the present invention are fluid delivery systems, a system for treating an exhaust stream by injecting an atomized spray, a catalytic system for treating at least one chemical species, and a system for humidifying an air stream for use in fuel cell.

Abstract: Torque estimation techniques in the real-time basis for engine control and diagnostics applications using the measurement of crankshaft speed variation are disclosed. Two different torque estimation approaches are disclosed—“Stochastic Analysis” and “Frequency Analysis.” An estimation model function consisting of three primary variables representing crankshaft dynamics such as crankshaft position, speed, and acceleration is used for each estimation approach. The torque estimation method are independent of the engine inputs (air, fuel, and spark). Both approaches have been analyzed and compared with respect to estimation accuracy and computational requirements, and feasibility for the real-time engine diagnostics and control applications., Results show that both methods permits estimations of the indicated torque based on the crankshaft speed measurement while providing not only accurate but also relatively fast estimations during the computation processes.