METHOD (VERSIONS) AND FLOW CONTROL SYSTEM FOR VEHICLE ENGINE INLET DOWNSTREAM OF THROTTLE Russian patent published in 2020 - IPC B60K13/00 

FIELD: engine building.

SUBSTANCE: disclosed are methods and systems for coordinating flows bypassing a throttle from a vacuum tank of a brake booster, a system for trapping fuel vapor and a crankcase ventilation system by active electrical control of a crankcase ventilation valve. In one example, the method may contain an active opening of a crankcase ventilation valve to include a flow of crankcase ventilation into the engine in conditions when it does not exceed the required flow rate of air flow into the engine and (or) the required flow rate of fuel into the engine. In conditions where all three said flows are required to bypass the throttle, the primary task is to compensate for rarefaction of the brake booster, then—blowing canister of fuel vapor collection, and then—crankcase ventilation.

EFFECT: invention discloses methods and systems for controlling flow at vehicle engine inlet downstream of throttle.

18 cl, 5 dwg