| 摘要 |
In an engine system having a motor-assisted supercharger, first and second supercharge-assist controls are performed. The first supercharge-assist control performs the supercharge-assist by an assist motor based upon a supercharge-assist amount for improving the follow-up characteristics of the actual supercharging pressure and the acceleration responsiveness to the rapid acceleration request by a driver. The second supercharge-assist control performs the supercharge-assist by the assist motor based upon the supercharge-assist amount for improving the convergent characteristics of the actual supercharging pressure to the target supercharging pressure.
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