The accelerated expansion of electric and hybrid vehicles imposes significant technicalchallenges on automotive repair shops, especially in the diagnosis of high-voltage systems andembedded electronics with complex architecture, in which modules, sensors, actuators, andcommunication networks interact continuously and may produce conditional and intermittentfailures. Data from the International Energy Agency (IEA, 2023) indicate that global sales of electricvehicles surpassed 14 million units in 2023, representing approximately 18% of globalautomobile sales, expanding the demand for specialized maintenance while at the same timeevidencing the shortage of qualified technicians and the absence of standardized protocols,factors that increase repair time, increase rework, and amplify operational risks.This study had as its objective to evaluate the impacts of the implementation of an AdvancedElectronic Diagnostic Protocol (PADE EV) applied to electric and hybrid vehicles, measuringeffects on operational efficiency, vehicle safety, and technical training.The methodology consisted of a 24-month longitudinal comparative study, analyzing 240service orders before and 240 after the implementation of the protocol, with standardizedrecording of operational and technical indicators.The results demonstrated a reduction in the average diagnostic time from 6.2 hours to 3.1hours, a reduction in the average total repair time from 9.4 hours to 4.7 hours, a reduction in therework rate from 18% to 7%, an increase in diagnostic accuracy from 82% to 96%, and areduction in technical safety incidents from 3.5% to 0.8%, indicating direct impact on operationalefficiency, on risk mitigation, and on the standardization of technical practices applied to theEV/HEV context.
Gabriel Meirelles (Wed,) studied this question.
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