Search Results

It is a challenge to write a good motor specification. Typical spec. problems are omitted or ambiguous requirements, or overly tight tolerances that drive up cost but not value. These problems create hidden penalties in cost, performance, reliability, and development time. This presentation will describe common problems in traction motor specifications and associated penalties, as well as recommendations to avoid them. Topics will include spec.?s for demagnetization, mechanical considerations, torque ripple, performance, and others. Presenter David A. Fulton, Remy Inc.

This paper illustrates the usage of virtual prototyping to observe the impact of self heating thermal effects on the performance of a complete claw pole alternator assembly. A typical automotive alternator is a subsystem that consists of an electromechanical rotor/stator assembly with electrical rectification and regulation components. Often in literature, thermal effects, if considered, remain exclusive to the alternator core, and do not effectively tie together the impact on other components of the alternator assembly. The scope of this work considers the implementation of a more detailed subsystem of electro-thermal components, rectifiers and a regulator within the context of a software implementation of an electro-mechanical alternator assembly. Alternator measurements, virtual prototype characterization, and validation via simulation comparisons with physical measurements are also discussed.