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송은아(Euna Song),조건희(Kunhee Cho),이형철(Hyeongcheol Lee) 한국자동차공학회 2023 한국자동차공학회 학술대회 및 전시회 Vol.2023 No.11
Currently, wheel torque is calculated by receiving the estimated torque of the drive system controller via CAN. But, if there is a problem with the controllers calculation, the hazard of the vehicle cannot be detected, so a separate wheel torque estimation method is required for functional safety response. Therefore, this paper developed a wheel torque estimation algorithm to improve torque output fault diagnosis. The algorithm is based on vehicle dynamics (longitudinal model) and is constructed through a sliding mode observer (SMO), and the consistency of the developed algorithm is verified through vehicle dynamics simulation.