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1 2023

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Analysis of passenger car powertrain system measurements in road conditions

Bieniek Andrzej, Graba Mariusz, Mamala Jarosław, Augustynowicz Andrzej, Szczepanek Michał

Combustion Engines

2023

R. 62, nr 4

144--151

The paper is focused on presenting a methodology for measuring power and torque based on diagnostic equipment available in most diagnostic workshops, such as OBD interfaces or the CAN Bus on-board data transmission network, under real-world road conditions. The publication presents an algorithm for calculating the powertrain’s torque and power based on measurements of changes in vehicle speed or acceleration recording during a two-phase road test. The results presented, based on the method described, apply to both the internal combustion and electric vehicle. Common powertrain operating parameters, such as maximum power, maximum torque and the powertrain’s flexibility parameters described in the literature, are proposed for the final evaluation of the vehicle’s traction system.