Active precleaner system and methods of use

An air cleaner assembly for filtering intake air for a power plant, the air cleaner assembly comprising:

• a) a filter cartridge disposed within a housing of the air cleaner assembly;
• b) a precleaner assembly including at least one particle separator for separating particulates from an airflow stream and a scavenge port for discharging the separated particulates, the precleaner assembly being located upstream of the filter cartridge;
• c) a scavenge system for evacuating the separated particulates out of the scavenge port, the scavenge system including a motor coupled to a fan;
• d) a controller varying a speed of the scavenge system motor in a normal operating mode in which the speed is a function of an input signal relating to one or more operational parameters associated with the precleaner assembly, the air cleaner assembly, the power plant receiving air from the air cleaner assembly, and/or a vehicle associated with the power plant;
• and
• e) a first pressure sensor arranged to sense a pressure between the precleaner assembly and the filter cartridge, wherein the controller receives an input from the first pressure sensor and sends an output signal to the scavenge system motor based on the input;
• f) wherein the controller includes one or both of a minimum operating condition and a high operating condition, wherein the controller overrides the output signal to the scavenge system motor to a different speed when parameters associated with either of the minimum and the high operating conditions are met.