| 摘要 |
PURPOSE:To obtain a target supercharging pressure ideally corresponding to a car velocity deviation by combination of efficiency of each supercharger by setting the control gain corresponding to the efficiency characteristic of each supercharger to a car velocity deviation of an automatic car velocity control device. CONSTITUTION:In a microcomputer 72, a supercharger control system 6 has a gain setting portion for individually setting control gains of superchargers 2, 3 corresponding to a car velocity deviation between a preset car velocity of an automatic car velocity adjusting device 5 and an actual car velocity. Further there is provided an opening signal output portion for calculating opening signals of by-pass valves 1g, 1h which are obtained by multiplying operation results of a by-pass valve controlled variable computing portion by a control gain set by the gain setting portion and outputting the same. Thus, it is possible to obtain a by-pass opening signal corresponding to the efficiency characteristic to a car velocity deviation of each supercharger 2, 3. Accordingly, the efficiencies of the respective superchargers 2, 3 are changed individually and a target supercharging pressure ideally corresponding to a car velocity deviation can be obtained by combination of the efficiencies. |
