查询词典 vehicle wheel

To the condition of deviation from side path when vehicles are turning and braking, according to the deviation distance, the control strategies and control algorithms of vehicle braking stability by two control methods, yaw moment and active steering, are determined. The fuzzy controller are designed whose outputs can be adjusted online according to the variation of slip rate and dynamic proportionality factor. The simulation results prove that the method of fuzzy control which is based on the yaw meoment and front wheel active steering can improve vehicle braking stability and ability of path tracking.

针对汽车在转弯制动时出现的侧向路径偏离状况，根据偏离量大小，利用横摆力矩和主动转向两种控制模式分别进行汽车制动稳定性控制，确立了两种控制模式下的控制策略和控制算法，设计了模糊控制器，根据轮胎最优滑移率变化状况，对模糊输出变量论域的大小按照动态比例系数进行实时在线调整，仿真实验验证了所提出的基于横摆力矩和前轮主动转向的模糊控制方法能提高汽车制动稳定性和路径跟踪能力。

The use of the variance steering ratio can not only raise the steering stability under the high vehicle speed, but also reduce the uncomfortable feeling and steering burden. This is helpful for the subjective evaluation of four-wheel steering vehicle.

采用变转向比方式的四轮转向车辆，不仅能够提高车辆高速时的操纵稳定性能，还能减少驾驶员转向时的不适应和负担，改善对四轮转向车辆操纵稳定性的主观评价。

The American modelling style, the coarse ore not bothers about trifles in the freely very abundant automobile body measurement not like vision effect like that prominent, but looks from the automobile body, the Dodge brand vehicle funds are in sole possession of the ram factory emblem, in addition the automobile body homochromy's cruciform type radiator guard, as well as outside expands the prominent wheel arch line specially, was still very abundant for Dodge builds fills the myo- sex appeal the positive personal appearance, if in glance situation, even has several point US is the Pick-up vehicle type stance.

尽管酷博的车身尺码并未如视觉效果上那般突出，但是从车身前方望去，道奇品牌车款独有的公羊厂徽，加上车身同色的十字型水箱护罩，以及特意外扩突出的轮拱线条，仍然替道奇酷博营造出充满肌肉感的正面身形，若在惊鸿一瞥的情况下，甚至带有几分美系Pick-up车型的架势。

It also introduced selecting methods of the power redirectors in the steering-system design. Moreover it also did the further research on the power redirectors matching and coordination problem of the suspension system and the steering-system, calculated steering wheel strength and momental gradient when the heavy-duty vehicle matched two kind of power redirectors, did entire vehicle performance simulation research on two matching schemes of the suspension system and the steering-system.

还介绍了在转向系统的设计过程中动力转向器的选型方法，另外还针对动力转向器匹配及转向系统与悬架系统匹配问题做了进一步的研究，对重型汽车匹配两种动力转向器时车辆的转向盘力和力矩梯度进行了计算，并对两种转向系统、悬架系统匹配方案进行了整车性能的仿真研究。

According to center director Subbureau Weiyang Wei Lee, the opening of the platform, if the vehicles equipped with GPS or danger encountered by the lawless elements, the vehicle drivers as long as you touch the steering wheel mounted on the small button next to, no matter where the vehicle, report to the police command center on the platform can quickly and accurately to achieve the tracking of vehicles, location, timely and effective fight against crime.

据未央分局指挥中心主任李海蔚讲，该平台开通后，如果装有GPS的车辆遇到不法分子或险情时，车辆驾驶员只要轻轻按一下装在方向盘旁边的小按钮，无论车辆在何方，指挥中心就能够在报警平台上迅速准确地实现对车辆的跟踪、定位，及时有效打击犯罪。

Vehicle turns to nonlinear behaviour of limiting condition when taking high-speed-turning, lane-change or brake-in-turn. Individual wheel's lateral stiffness rapidly decline then. Vehicle loses control response of driver and deviates from the desired trajectory, which easily leads to oversteering or understeering, especialy in low attachment icy road conditions.

当汽车的运动处在极限状况的非线性状态时，如在高速大转弯、换车道、超车、转弯刹车时，存在单独车轮的侧偏刚度迅速下降，汽车对驾驶员操纵失去应有的响应，车辆的运行状态偏离驾驶员期望的行驶状态，尤其在冰雪等低附着路面条件下，容易导致过度转向或不足转向，车辆发生危险。

The dissertation has introduced the 2dof model of the vehicle and set up 2dof linear model of four-wheel-steering vehicle.

对轮胎的各种模型进行了简介，指出了应用神经网络对轮胎的非线性建模的优点。

In this dissertation, according to the theory of Mechanical Dynamics and Multi-body Dynamics, a simulation model of NJ2046 light off-road vehicle including suspension system, steering system and tires is built with the software CarSim and so the vehicle steering characteristics are analyzed with the step angle input of steering wheel.

摘要本文根据机械系统动力学、多体动力学理论，运用动力学仿真软件CarSim建立了包括悬架系统、转向系统和轮胎等模型的NJ2046越野汽车整车仿真模型，在此基础上分析了NJ2046越野汽车在方向盘转角阶跃输入时的转向特性，通过对不同车速、不同载荷条件下的仿真计算，得出了在这些条件下该车具有的不同表现特征，揭示了转向特性与车速、载荷和轮胎的内在关系。

This paper makes use of PID control, Fuzzy- PID control based on single parameter these two control strategies to simulate the systems model. Compared with common vehicle, the results of simulation show that the vehicle equipped with the electromagnetic power steering system has better yaw velocity frequency response characteristic under condition with step input of steering wheel, so it has more betterhandling stability; Compared with PID control strategy, the results show that the Fuzzy-PID control strategy has the advantages, such as response fast, stabilize itself quickly and less over-altitude.

本文使用了PID、单参数自整定Fuzzy-PID两种控制策略对系统模型进行控制，仿真结果表明：相对于普通汽车，装有电磁式助力转向系统的汽车在方向盘转角阶跃输入的情况下，汽车横摆角速度频率响应特性更好，因此具有更好的操纵稳定性；而相对于采用PID控制，采用单参数自整定Fuzzy-PID控制又可以使系统响应更迅速、超调量更小、稳定更快。

Directed against the commonly used control methods which adopt logical threshold value, we put forward a self-optimizing control method, based on the single-wheel vehicle model, the loading diversion is laid special stress, further, build the mathematics model of two-wheeled vehicle, and the scene of which move on three types of typical road surface.

针对几种常用的主要采用逻辑门限值控制的方法，提出了一种自寻最优控制方法，并在已有的单轮汽车模型之上，重点考虑了载荷转移问题，建立了双轮汽车的数学模型，将该方法运用于双轮汽车的模型在三种典型路面的仿真。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失