RT Journal Article SR Electronic A1 Shahabi, Ali A1 Kazemian, Amir Hossein A1 Farahat, Said A1 Sarhaddi, Faramarz T1 Dynamic Behavior of the Full-Car Model in the J-Turn Maneuver by Considering the Engine Gyroscopic Effects JF Communications - Scientific Letters of the University of Zilina YR 2021 VO 23 IS 3 SP B237 OP B249 DO 10.26552/com.C.2021.3.B237-B249 UL https://komunikacie.uniza.sk/artkey/csl-202103-0012.php AB This study presents a new dynamic modeling of a vehicle by considering the engine dynamics. By selecting the vehicle coordinate system as the reference frame, all the force-torque equations of the sprung mass and unsprung masses are derived in this coordinate system by using the Newton's equations of motion. Unlike the previous researches, in this work the sprung mass of the vehicle is not considered as a rigid body. The dynamics of the sprung mass components, such as gyroscopic effects of the engine crankshaft, is considered. In order to study the vehicle's dynamic behavior, in the J-turn maneuver, the governing equations of the full-car model are evaluated and validated by the numerical simulation method and ADAMS/Car software. Based on the results, the maximum roll angle and roll rate of a vehicle reach about 8 degrees and 40 degrees per second, respectively.