초록 ▼

A control system for an internal combustion engine and an associated pressure wave supercharger, which optimizes exhaust emissions and engine performance by automatically switching the mode of control between a cold start and white smoke mode, an altitude dependent mode, a low emissions mode, a fuel

A control system for an internal combustion engine and an associated pressure wave supercharger, which optimizes exhaust emissions and engine performance by automatically switching the mode of control between a cold start and white smoke mode, an altitude dependent mode, a low emissions mode, a fuel economy mode, and a particulate trap regeneration mode as the operating conditions of the engine change.

대표청구항 ▼

[ What is claimed is:] [1.] A control system for an internal combustion engine having a liquid coolant, an intake manifold for supplying combustion air to the engine, an exhaust manifold for the high pressure exhaust gases and a fuel injection system which is adapted to vary the timing of the fuel i

[ What is claimed is:] [1.] A control system for an internal combustion engine having a liquid coolant, an intake manifold for supplying combustion air to the engine, an exhaust manifold for the high pressure exhaust gases and a fuel injection system which is adapted to vary the timing of the fuel injection and a pressure wave supercharger having a circular array of elongated chambers disposed to rotate about a central axis, a variable speed drive to rotate the circular array of elongated chambers, a low pressure combustion air duct and a high pressure combustion air duct each disposed in fluid communication with the same end of a plurality of different elongated chambers, a high pressure exhaust duct and a low pressure exhaust duct each disposed in fluid communication with the other end of a plurality of different elongated chambers, disposed between the high pressure exhaust duct and the low pressure exhaust ducts and in fluid communication with the other end of a plurality of elongated chambers is a gas pocket, the gas pocket is also in fluid communication with the high pressure exhaust duct through a flow control valve, the high pressure exhaust duct is disposed in fluid communication with the exhaust manifold via an exhaust conduit, which has a restrictor valve disposed therein, and the low pressure exhaust duct is disposed in fluid communication with the atmosphere, the high pressure combustion air duct is disposed in fluid communication with the intake manifold and the low pressure combustion air duct is disposed in fluid communication with the atmosphere and has a restrictor valve disposed therein; the control system being characterized in that, the control system automatically switches from one mode of operation to another in response to varying operating conditions and emissions requirements utilizing a plurality of maps based on fixed data points obtained from empirical data specific to the engine and pressure wave supercharger and the particular mode of engine operation to optimize engine performance and control emissions.