This paper presents a methodology for specification of three phase induction motors applied to the traction of vehicles used by recyclable material collectors. In this methodology, it is used a load cell and a GPS to acquire the force and speed imposed by the collectors during actual work journeys. With the adopted approach, it is possible to preview the most efficient motor capable to supply the work cycles demanded by the collectors, avoiding so reduction in motor lifetime by over temperature, an highest electrical energy efficiency and also avoiding the battery bank oversizing. The methodology is expandable to specify electric motors dedicated to substitute the human force in other vehicles whose the human is the primary power source, such as the charts applied by civil construction workers, dockers, farmers or even vehicles for personal transportation like bicycles and scooters. It is highlighted the approach taken to describe the vehicle model referred to the motor axis through vector control and a reduced number of sensors and tests for parameters extraction...
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