| 摘要 |
PURPOSE:To prevent lowering of a superchaging pressure during switching to a plurality of turbochargers owing to air intake efficiency following a change in an intake air temperature and reduce the fatigue of a turbine wheel and an impeller. CONSTITUTION:The temperature of intake air introduced to an engine is detected by an intake air temperature detecting means 57. Based on the detected intake air temperature, a condition of switching to two turbochargers is corrected by a switching condition correcting means 58 and switching to the two turbochargers to which a change in air intake efficiency is added. |
