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논문 상세정보

최적 타이어 힘 분배 방법을 통한 전기차의 독립 6WD/6WS에 관한 연구

A Study on an Independent 6WD/6WS of Electric Vehicle using Optimum Tire Force Distribution

Abstract

This paper presents an optimum tire force distribution method for 6WD/6WS(6-Wheel-Drive and 6-Wheel-Steering) electric vehicles. Using an independent steering and driving system, the performance of 6WD/6WS vehicles can be improved, as, for example, with respect to their maneuverability under low speed and their stability at high speed. Therefore, there should be a control strategy for finding the optimum tire forces that satisfy the driver's command and minimize energy consumption. From the driver's commands (steering angle and accelerator/brake pedal stroke), the desired yaw moment, the desired lateral force, and the desired longitudinal force were obtained. These three values were distributed to each wheel as the torque and the steering angle, based on the optimum tire force distribution method. The optimum tire force distribution method finds the longitudinal/lateral tire forces of each wheel that minimize the cost function, which is the sum of the normalized tire forces. Next, the longitudinal/lateral tire forces of each wheel are converted into the reference torque inputs and the steering wheel angle inputs. The proposed method was tested through a simulation, and its effectiveness was verified.

참고문헌 (9)

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이 논문을 인용한 문헌 (3)

  1. Kim, Sang-Ho ; Kim, Chang-Jun ; Han, Chang-Soo 2011. "Improvement of Hill Climbing Ability for 6WD/6WS Vehicle using Optimum Tire Force Distribution Method" 한국산학기술학회논문지 = Journal of the Korea Academia-Industrial cooperation Society, 12(4): 1523~1531 
  2. Kim, Chang-Jun ; Han, Chang-Soo 2011. "A Study on Independent Steering & Driving Control Algorithm for 6WS/6WD Vehicle" 제어·로봇·시스템학회 논문지 = Journal of institute of control, robotics and systems, 17(4): 313~320 
  3. Jang, Jae-Ho ; Kim, Chang-Jun ; Kim, Sang-Ho ; Kang, Min-Sung ; Back, Sung-Hoon ; Kim, Young-Soo ; Han, Chang-Soo 2013. "Improvement of the Yaw Motion for Electric Vehicle Using Independent Front Wheel Steering and Four Wheel Driving" 제어·로봇·시스템학회 논문지 = Journal of institute of control, robotics and systems, 19(1): 45~55 

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