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1 wrz 2022 · Hairpin windings are becoming a popular option for EV motors due to their reduced dc losses and improved heat dissipation capability when compared to traditional random windings. In this article, a comprehensive design approach of hairpin winding layouts is first presented.
bility. The hairpin stator technology allows short cycle times and high degrees of automation with a high pro-cess stability similar to the production of an internal combustion engine or transmission [8]. The hairpin stator technology represents a scalable option to the classic winding technology through short and efficiently paralleliz-
Models and Methodology for Optimal Vehicle Maneuvers Applied to a Hairpin Turn. Berntorp, Karl; Olofsson, Björn; Lundahl, Kristoffer; Bernhardsson, Bo; Nielsen, Lars. Published in: 2013 American Control Conference. DOI: 10.1109/ACC.2013.6580152. 2013. Document Version: Publisher's PDF, also known as Version of record. Link to publication.
In this paper, a comprehensive design approach of hairpin winding layouts is firstly presented. The flexibility and limitation of end-winding patterns is thoroughly investigated in terms of basic pin connections, special jumpers, transposition, parallel branches, terminal positions, phase shift, winding pitches as well as slot-pole combinations.
maneuvering through a hairpin turn, see Fig. 1 for an example, with the vehicle being subject to various constraints. Another aim of the study is to explore whether different vehicle models yield fundamentally different solutions, not only in the cost function but also in the internal behavior of the vehicle. Hence, a part of the work is devoted to
22 mar 2024 · Against this background, a model-based closed-loop process control for the sequential tool-bound bending of hairpin coils is introduced and validated in this paper.
For hairpin windings, the rectangular conductors in each slot are arranged in layers. To form a winding, connections between the conductors are made, which are defined by the winding algorithm. General de-sign guidelines for hairpin winding with a multitude of parallel branches per phase are described in [ 10].
