| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable to surely restrain generation of smoke, by enabling to control air excess ratio accurately even in a case when it is affected by parameter according to altitude. SOLUTION: With the supercharging pressure control system for internal combustion engine equipped with turbocharger 9, target air excess ratio setting measure 52 sets target air excess ratio according to state of operation of the engine, and actual air excess ratio estimating measure 51 estimates actual air excess ratio with parameter depending on altitude based on actual state of operation of the engine, and supercharging pressure control measure 53 controls supercharging pressure so as to keep deviation between target air excess ratio and actual air excess ratio.</p> |
