The Design and Fabrication of BLDC Motor and Drive for 42V Automotive Applications

The present in vehicle 14 V DC power system is being pushed to the maximum limits to meet the high power loads. In the mean time, the 42 V power nctwork("powernet") in future automobiles enables a number of new features that require high power loads including electric power steering, engine cooling fan system, electric compressors etc. This paper presents a design and implementation of brushless DC (BLDC) motor and controller for engine Cooling fan system for 42 V automotive applications. Experimental results from a laboratory prototype are presented to validate the feasibility of the proposed BLDC Motor and Drive.