Dual fan module system with three power options using two single throw relays and one double throw relay and a series resistor

摘要

A multi-powered electric motor system (21) is provided for a vehicle. The system includes first and second direct current motors (12, 14), each constructed and arranged to operate at a single speed. Current limiting structure (R1) is constructed and arranged to lower electrical input power to the motors so that a speed of the motors is reduced when the motors are powered together with the current limiting structure, as compared to a speed of the motors powered absent the current limiting structure. Switching structure (K1, K2, K3) is selectively operable to cause the motors to operate at various speeds resulting in three discrete power levels of the system.