Engine control system

摘要

In an internal combustion engine with a supercharger, slipping of the driven wheel is controlled in that the engine torque is reduced when the extent of the wheel slip relative to the road surface becomes too great. If the engine running status lies in a non-supercharged range, the wheel slip is controlled by at least one of the processes in order to reduce the amount of fuel being fed to the engine and to retard the firing point (first slip control). If the running status lies in a supercharging range, however, the slip is controlled by reducing the supercharging pressure (second slip control). In a transitional period in which the running status of the engine is changed from the non-supercharged range into the supercharged range, and if the first slip control is performed in the non-supercharged range, the first slip control can be continued instead of the second slip control, until the wheel slip is made to converge.