Group for Lean Construction Thirteenth Annual conference IGLC 13, Sydney, Australia, pp. 421 429. Gardiner. P. D and Simmons. J. The functionality engineering matlab controller was also verified by means of experiment. Abstract: BLDC Brushless DC motors have found engineering big selection of functions in commercial automation, automotive, aerospace, instrumentation because of their long operating life, compact form, reliability and occasional upkeep, high effectivity and higher speed torque qualities. This Paper is an endeavor in opposition t developing engineering simulink model with matlab parameters of engineering real trapezoidal back emf kind of BLDC motor. The model is then analyzed under aiding and opposing loads. The diversifications in motor speed torque features, back emf and latest drawn by matlab motor for both no load and loaded aiding and opposing loads circumstances is analyzed. Some experimental tests are conducted to examine matlab model and compared with matlab simulation effects that are very useful in learning matlab functionality of motor system. Se dar engineering continuacin una somera introduccin conceptual al Software Libre, y en Justicacin se exponen los argumentos de la decisin mencionada, que se invita engineering leer y analizar. Importante: La liberacin se limita al application desarrollado por el autor de este trabajo, siendo este dependiente del backend GPEC que no es libre. Si bien la utilidad de un sofware libre que depende de otro no libre es parcial, ver , queda fuera de la potestad del autor la determinacin de una liberacin total, aunque enfticamente la promueva. 3. 2. 1 IntroduccinEl Software Libre SL es aquel que respeta la libertad de los usuarios sobre su producto adquirido independientemente de si se debe pagar por ello o no y, por lo tanto, una vez obtenido puede ser usado, copiado, estudiado, cambiado y redistribuido libremente 3 .