Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1999-02-01
2000-06-20
Koczo, Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
F02B 3718
Patent
active
060763523
ABSTRACT:
According to the supercharging pressure control device of the present invention, a supercharging pressure of a supercharged engine for an aircraft is controlled by adjusting an opening of a waste gate valve (WGV) of an exhaust gas turbocharger. The control device controls the opening of the WGV to the opening given as a sum of a feed forward amount determined from an atmospheric pressure and an engine speed, and a feedback amount set based on a deviation between a target supercharging pressure and an actual supercharging pressure detected by a sensor. Further, the control device corrects the feed forward amount in accordance with the deviation amount of the atmospheric temperature and an intake air pressure loss from the values in the standard condition and makes the range of fluctuation of the feedback amount smaller. By this, the lowering of a response of the supercharging pressure control due to an increase of the amount of the correction of the degree of opening of the WGV by the feedback amount caused by the deviation of the operating condition from the standard condition is prevented.
REFERENCES:
patent: 4848086 (1989-07-01), Inoue et al.
patent: 4849897 (1989-07-01), Ciccarone
patent: 5363652 (1994-11-01), Tanaka et al.
patent: 5605044 (1997-02-01), Zimmer et al.
Koczo Michael
Toyota Jidosha & Kabushiki Kaisha
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