(57) ABSTRACT A method for correcting the reduced mass flow rate of a compressor in an
internal combustion engine turbocharged with a turbocharger provided with a turbine and …

An apparatus includes an operating conditions module that interprets a number of
compressor operating parameters; a compressor flow module that determines a compressor …

A system and method are provided for estimating the operating speed of a turbocharger. A
first pressure value corresponds to pressure at or near the air inlet of the compressor, and a …

A turbocharger controller includes a turbocharger compressor temperature module having a
compressor inlet air temperature input, and a turbocharger compressor pressure module …

A system and method are provided for estimating the operating speed of a turbocharger. A
first pressure value corresponds to pressure at or near the air inlet of the compressor, and a …

There is provided an art of performing correction of a coefficient in a model calculation
formula of an intake valve model that is applied to an internal combustion engine including a …

A method is provided for modeling the compressor speed of a turbocharger, and includes
determining the temperature difference across the compressor, determining the mass flow …

A method is provided for modeling the compressor speed of a turbocharger, and includes
determining the temperature difference across the compressor, determining the mass flow …

The speed of a turbocharger may be estimated using data from sensors that are readily
available in most engine management systems. In some cases, a pressure measurement …

BACKGROUND Compressors increase the pressure on a fluid. As gases are compressible,
the compressor also reduces the Volume of a gas. A compressor stall is a local disruption of …