Patent attributes
A method of controlling a turbocharger of a vehicle includes determining, by a controller, a target boost pressure of intake air of a plurality of turbochargers according to one or more vehicle driving conditions, and determining target opening ratios of a plurality of wastegates respectively provided in the plurality of turbochargers, according to the target boost pressure, determining, by the controller, whether or not a current opening ratio detected by an opening ratio sensor of any one wastegate of the plurality of wastegates is lower than the target opening ratio of the associated wastegate by a reference value, and limiting, by the controller, a maximum rpm of the turbocharger having the associated wastegate when it is determined that the current opening ratio of the associated wastegate is lower than the target opening ratio by the reference value.
