Internal-combustion engines – Charge forming device – Supercharger
Patent
1994-09-15
1996-10-15
Koczo, Michael
Internal-combustion engines
Charge forming device
Supercharger
477 33, F02B 3912, F16H 5932
Patent
active
055644007
ABSTRACT:
A system for controlling a supply of driving power to an automotive vehicle having driving wheels and an internal combustion engine includes a supercharger, which is capable of maintaining a supercharging pressure, for charging intake air into the internal combustion engine, and an automatic transmission having a shifting characteristic including a down-shifting zone with a specified width. The automatic transmission is capable of shifting among gear stages and transmitting driving power generated by the internal combustion engine to the driving wheels. A first adjustment device controls the supercharging pressure of the supercharger to converge on a target supercharging pressure. A second adjustment device causes the automatic transmission to shift from one gear stage to another gear stage. A detection device determines an acceleration requirement level by detecting an opening angle of an accelerator pedal. A control device changes (i) the target supercharging pressure and (ii) the shifting characteristic of the automatic transmission, in accordance with the acceleration requirement level determined by the detection device such that the target supercharging pressure is lowered and the down-shifting zone of the shifting characteristic of the automatic transmission is widened when (i) the automatic transmission shifts to a higher vehicle speed gear stage and (ii) the acceleration requirement level increases.
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Matuoka Toshihiro
Nishimura Eiji
Koczo Michael
Mazda Motor Corporation
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