| 摘要 |
<p>PURPOSE:To previously prevent the reduction of engine torque due to the shortage of supercharge pressure and the superloaded state accompanied with the abnormal rise of supercharge pressure by preparing plural kinds of aimed supercharge pressure and selecting the supercharge pressure according to the degree of acceleration. CONSTITUTION:A plurality of data tables having each aimed supercharge pressure having each different characteristics which is set corresponding to the intake air quantity are stored into a memory in order to drive the solenoid valves 33 and 46 for controlling a variable nozzle 16 and an exhaust bypass valve 36 which operate as the adjusting means for supercharge pressure. As for the characteristic values set into a plurality of tables, the aimed supercharge pressure most proper for the intake air quantity at each time is set, supposing the operation states such as the stationary operation state, gentle acceleration state, and the sharp acceleration state. The most proper table is selected by judging the operation state, and feedback is carried out so that the aimed supercharge pressure and the actual supercharge pressure accord according to the value on the table.</p> |
