CONTROL FUNCTIONS (CONT’D)

Application Interface Outline (Cont’d)

Blue and white smoke suppression

The feature allows the high idling speed to be limited when the coolant is lower than a prescribed temperature, thus reducing the time required for vanishing the emission of blue and white smoke in cold start conditions. See [Figure 1040-45]. By default, the "blue and white smoke suppression" feature is disabled.

usual high idle speed engine speed manually

High idle speed smoke control coolant temperature accelerator position

Blue and white smoke suppression is effective in limiting the time required for vanishing the blue and white smoke for the engines with the rated speed of 2300min-1 or above by reducing the high idling speed to around 150min-1 in the coolant temperature below 30°C when optionally set.