SUPERCHARGING SYSTEM AND METHOD FOR OPERATING A SUPERCHARGING SYSTEM

摘要

A supercharging system includes a charging device having a turbine and a compressor, the compressor having a high speed shaft; a planetary gear set coupled to the high speed shaft and an electric motor, or generator, via a low speed drive shaft; a clutch unit; a power transmission for connecting a crank shaft of the combustion engine to the drive shaft via the clutch unit; at least one sensor to measure at least one physical parameter of the exhaust gases inside, or after having passed, an exhaust gas catalyzer of the internal combustion engine, the at least one sensor being configured to provide an output signal representing a measured value of the at least one physical parameter; and a system control unit to receive the output signal and to control the speed or effect of the electric motor, or generator, based on the output signal. A method is also disclosed.

主权项

1. A supercharging system for an internal combustion engine comprising:
a charging device having a turbine and a compressor, said compressor having a high speed shaft; a planetary gear set coupled to said high speed shaft and an electric motor, or generator, via a low speed drive shaft; a clutch unit; a power transmission for connecting a crank shaft of the combustion engine to said drive shaft via the clutch unit; at least one sensor to measure at least one physical parameter of the exhaust gases inside, or after having passed, an exhaust gas catalyzer of said internal combustion engine, the at least one sensor being configured to provide an output signal representing a measured value of said at least one physical parameter; and a system control unit, configured to receive said output signal from the at least one sensor and configured to control the speed or effect of said electric motor, or generator, based on said output signal.