ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

A structure of electromagnetic suspension with in-wheel motor was proposed. This structure was aimed at conquering the unsprung mass increase because of the motor in wheel to worsen tire grounding and ride comfort. In addition, this structure was equivalent to dynamic vibration absorber, which can effectively share the road vertical excitation on the tire. Thus, the dynamic model of the electromagnetic suspension was established with inwheel motor. The transfer characteristics and the performance indexes (vehicle acceleration and tire dynamic load) between the quality systems were analyzed by simulation. The results showed that the suspension system can effectively inhibit the wheel-type formant during the frequency domain, and make the wheel-shaped resonant frequency avoid falling in the most sensitive section of the human body: 4~12.5Hz. Based on the structure, the actuator would use the skyhook control strategy to improve the ride comfort. Compared with the conventional suspension, the body acceleration of new system was reduced by 23.1%, and tire dynamic load was decreased by 166%. In terms of modified structure and the sky-hook control strategy, the performance of ride comfort and tire grounding were improved obviously. Finally, the experiment was carried out on the singleaisle pedestals to verify the feasibility of the new structure and control method. The results showed that the negative effect of vertical vibration caused by the increase of the non-spring load of electric vehicle was suppressed by the new structure and new control method.