| 摘要 |
<p>PURPOSE:To realize the further improvement of the performance of an engine, by conducting control so that the variable control of the supercharging volume of a variable volume supercharger may be made to be conducted in accordance with the operation condition of a valve operation condition changeover device relative to a valve mechanism. CONSTITUTION:A turbo charger 7 whose compressor portion 8 and turbine portion 12 are respectively provided at an air intake manifold 3 and an exhaust manifold 11, is so constituted that a supercharging volume can be varied by changing an exhaust gas flow passage cross sectional area to the turbine portion 12 by means of an actuator 18. Also, a valve mechanism 14 is constituted so that a valve timing may be variable by controlling through a solenoid valve 16 and a changeover control valve 17 oil pressure generated by means of an oil pump 15 driven by an engine. In this instance, the supercharging volume of the turbo charger 7 is arranged so as to be made to be controlled variably in accordance with the changeover operation condition of the valve mechanism 14. That is, a correction toward supercharging pressure being increased by a predetermined value, is made in the case of a condition in which the valve mechanism 14 is set at a high speed operation condition.</p> |
