Power plants – Fluid motor means driven by waste heat or by exhaust energy... – With supercharging means for engine
Patent
1988-12-21
1990-05-22
Koczo, Michael
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
With supercharging means for engine
F02B 3712
Patent
active
049266403
ABSTRACT:
A method of controlling supercharging pressure in an internal combustion engine is disclosed. The supercharging pressure is controlled based on a basic control amount determined in dependence on operating conditions of the engine. When the transmission is in a lower speed position, the basic control amount is corrected so that the supercharging pressure is lower than a value assumed when the transmission is in a higher speed position. When the engine is in a feedback control mode, the basic control amount is corrected in response to the difference between the actual supercharging pressure and a desired value of same. The desired value of the supercharging pressure is set lower when the transmission is in the lower speed position than a value assumed when the transmission is in a higher speed position. When the transmission is in the lower speed position, the rising speed of the supercharging pressure in a transient states is set lower than a value assumed when the transmission is in a higher speed position. The basic control amount is corrected so as to decrease the supercharging pressure, and/or the desired supercharging pressure value is decreased, when the engine rotational speed changes from a state in which it increases to a state in which it decreases.
REFERENCES:
patent: 4556038 (1985-12-01), Okamoto et al.
patent: 4620420 (1986-11-01), Gloss et al.
Eitetsu Akiyama
Kazuo Inoue
Masao Kubodera
Noriyuki Kishi
Osamu Takizawa
Honda Motor Co. Ltd.
Koczo Michael
Lessler Arthur L.
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