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电动汽车DYC/ASR变论域模糊集成控制 被引量:13

Integrated DYC / ASR-based Variable Universe Fuzzy Control for Electric Vehicles
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摘要 提出了一种集成直接横摆力矩控制(DYC)与驱动防滑控制(ASR)的四轮驱动电动汽车稳定性控制系统,协助驾驶员在紧急情况下保持对车辆的控制。采用变论域模糊控制策略,利用其内在固有的鲁棒性克服车辆严重非线性,独立调节四轮转矩以防止车辆甩尾;同时设计一个模糊控制器,对轮胎力饱和引起的侧向失稳进行开环补偿,协调控制各轮牵引力,防止车轮打滑。在不同路况下,对所提出的方法进行了J-turn仿真测试。结果表明:集成控制对高速、大转向行驶产生的扰动和路面附着系数变化引起的非线性,有比DYC更好的动态跟踪能力与自适应能力。 An integrated control system based on direct yaw moment control (DYC) and anti-slip regulation (ASR) for stability control of four-wheel-drive electric vehicle is proposed to assist driver to maintain vehicle control during emergency.Variable universe fuzzy control strategy is adopted with its inherent robustness utilized to overcome the severe nonlinearity of vehicle and independently adjust the torques of four in-wheel-motors for preventing vehicle drift.Meanwhile,a fuzzy controller is designed to accomplish the open-loop compensation for lateral instability caused by tire force saturation and coordinate the traction force of each wheel for preventing wheel skid.J-turn simulation tests on the method proposed are conducted under different road conditions.The results show that the integrated control has better dynamic tracking capability and adaptability than DYC in facing the disturbances produced by high-speed and hard cornering and the nonlinearity caused by the change in road adhesion coefficient.
出处 《汽车工程》 EI CSCD 北大核心 2014年第5期527-531,545,共6页 Automotive Engineering
基金 辽宁省自然科学基金(20092052) 沈阳市科技计划项目(F12-277-1-11)资助
关键词 电动汽车 四轮驱动 变论域模糊控制 直接横摆力矩控制 驱动防滑控制 electric vehicle four-wheel-drive variable universe fuzzy control direct yaw moment control anti-slip regulation
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