Method for discharging condensate from a turbocharger arrangement

摘要

Methods and systems are provided for discharging condensate from a turbocharger arrangement of an internal combustion engine. Specifically, in on example, condensate may be drained from a condensate reservoir by opening a drain valve coupled to the condensate reservoir. Further, the drain valve may be closed responsive to engine operating conditions indicating the condensate reservoir has been completely drained.

主权项

1. An engine method, comprising:
determining engine operating conditions including an initial engine pressure; determining whether it is time to open a drain valve based on the engine operating conditions, and if so, opening the drain valve, the drain valve arranged in a connecting line, the connecting line coupled to an outlet of a condensate reservoir, the condensate reservoir fluidly coupled to an intake tract downstream of a charge air cooler; and closing the drain valve in response to an engine pressure decreasing below the initial engine pressure by a threshold amount, wherein the opening the drain valve includes opening the drain valve at pre-determined time intervals during engine operation.