I'm pretty desk-bound, which is very frustrating. 我基本上一直需要伏案工作,这真让人沮丧。
A method of identifying road adhesion coefficient based on wheel slip ratio is investigated in this paper. 文中通过仿真研究探索了一种基于车轮滑移率的路面附着系数识别方法。
Development of testing system for adhesion coefficient utilization 附着系数利用率测试系统的开发研究
This paper analyzed the choices of calculation adhesion coefficient and traction electromotor, it and through reasoning, it introduced the significance in details. 分析了计算粘着系数的取值以及牵引电动机选用问题,并通过论证比较详细说明其意义。
Measurement and Application of Adhesion Coefficient of Pesticide in Fruits and Vegetables 水果蔬菜中农药的附着系数及其应用初探
The influence of synchronous adhesion coefficient on brake force distribution of motor vehicles is described in this paper. 介绍了同步附着系数对汽车制动力分配特性的影响。
With the limit of the use condition and structure of derivate tractor, its front load distribution is more than that of the rear and synchronism adhesion coefficient is small. 变型拖拉机受生产使用条件及结构设计等因素的影响,载荷分配一般是前轴载荷偏大,同步附着系数小,在制动状态下易出现后轮先抱死而发生后轴侧滑,制动性能降低。
An optimizing design of a light transport vehicle is taken as an example and simulative calculation is made as the adhesion coefficient is in a range of common roads. 结合某轻型运输车的实例进行了优化设计,并在常用路面附着系数范围内进行了仿真计算。
Estimation Method of Road Adhesion Coefficient for Vehicle Longitudinal Safety Assistant System 面向汽车纵向安全辅助系统的路面附着系数估计方法
According, to the shortcomings of the logic-based and wheel slip based control algorithms, a new algorithm using the adhesion coefficient of road surface is proposed, the effectiveness of which is shown under ideal conditions. 本文进一步通过仿真研究了基于滑移率S的控制算法,并根据逻辑控制和滑移率控制的缺陷,提出了基于路面附着系数μ的控制算法。在理想状态下证实了所提算法的有效性。
Analyzed and calculated the adhesion coefficient and brake force distribution coefficient. 最后本文还对半挂汽车列车附着系数与制动力分配系数进行了分析与计算。
Study on the Adhesion Coefficient of Crumb Rubber Concrete 橡胶集料混凝土粘附系数的研究
Research on Adhesion Coefficient of Automobile Tire and Road Surface 汽车轮胎与公路路面附着系数的研究
Finally, as an example, the synchronous adhesion coefficient for the BJ 121 trucks has been optimistically designed. 以BJ121型汽车为例,对同步附着系数进行了优化设计。
The adhesion coefficient of automobile tire and road surface is analyzed considerately and the formula about it conducted. 对汽车轮胎与公路路面的附着系数进行了较详细地分析与计算公式的推导。
The ABS dynamically demonstration system controlled by microcontroller was developed, which can demonstrate the changing process of oil path and electric circuit and the impaction on ABS of different adhesion coefficient. 设计和开发了以单片机为控制核心的ABS动态工作显示系统,全面演示ABS系统工作过程中油路、电路的变化过程以及不同的路面附着系数对ABS系统的影响。
An adhesion coefficient of less than 0.27 would be appropriate under dry rail surface condition. 在干燥轨面状态下,选取常用粘着系数以不大于0.27为宜。
By the experiment, not only the relation between adhesion force ( adhesion coefficient) and creepage has been obtained, but also the relation between adhesion coefficient and speed has been obtained as well. 试验不仅得到了完整的粘着力(粘着系数)与蠕滑率的关系,同时得到了粘着系数与运行速度的关系。
Brief Analysis for the Traction Electromotor Power and Subway Car Calculation Adhesion Coefficient 地铁车辆计算粘着系数和牵引电动机功率选用问题简析
The ABS simulating model of a bus was established and the simulations were carried on low adhesion coefficient road condition, and the influences of the brake force, the electromagnetic valve and the moment of inertia of the wheel on the ABS were studied through simulation analysis. 利用混合建模方法建立了某轻型客车的ABS仿真模型并进行了低附着系数道路条件下的仿真研究,探讨了制动器制动力、电磁阀响应时间和车轮转动惯量对汽车ABS性能的影响。
Through the parameter studies of track irregularity, adhesion coefficient, longitudinal stiffness of primary suspension, mass of wheelset and axle-load, the influence of them on longitudinal vibration is researched. 通过对一些主要参数的研究,本文明确了轨道不平顺、粘着系数、一系纵向刚度、轮对质量和轴重对轮对纵向振动的影响。
This paper analyses dynamic feature of vehicle brake and expounds relations between brake torque, brake deceleration and adhesion coefficient on road surface. 分析了车辆的制动过程,阐述了制动力矩、制动减速度与地面附着系数之间的关系。
In this paper, the fundamentals of railway wheel-rail adhesion and factors influencing the adhesion coefficient are discussed, along with the presentation of the wheel-rail simulation wear test results. 作者探讨了轮轨粘着的基本原理及其影响因素,并提出了粘着系数对轮轨磨损特性影响的试验结果。
A method of analysis for the utilization adhesion coefficient and utilization factor of road adhesion coefficient in vehicles 利用附着系数和路面附着系数利用率计算分析方法
Apart from that, this paper also has a real vehicle test on state estimation, sets out a simulation on the road adhesion estimation algorithm and gets a satisfied result, which provides a new way for the vehicle estimation state and road adhesion coefficient. 对状态估计进行了实车试验,对路面附着系数估计算法进行了仿真验证,取得了比较满意的结果,为车辆的状态估计和路面附着系数估计提供了一种新的方法。
Lastly, braking performance under different initial vehicle velocities and on different adhesion coefficient roads using logic threshold control algorithm, PID control algorithm and fuzzy control algorithm are analyzed and compared. 最后,对基于门限值控制算法、PID控制算法和模糊控制算法,在不同车速下和不同附着系数路面上的汽车ABS的制动性能进行了详尽分析比较。
By means of a simplified hydraulic brake system model, the road adhesion coefficient estimation method is discussed based on the wheel cylinder pressure. 本文在以上工作基础上,通过对液压模型的简化,讨论了基于制动轮缸压力估算路面附着系数的方法,并在实验平台上对估计方法进行了验证。
At the intersection of β line and I curve, the adhesion coefficient is synchronization adhesion coefficient. β线与Ⅰ曲线交点处的附着系数为同步附着系数。
Based on multi-rate theory, the optimal adhesion coefficient estimation is studied which provide reference for optimal re-adhesion control. 利用一种交替进行状态估计和参数估计的双重滤波算法对机车参考轮对速度进行估计,提出了基于不确定系统滤波的多采样率最优粘着系数估计方法,为优化粘着控制提供参考。
According to the simulation data of slip velocity and adhesion coefficient, a fuzzy model, RV-TS model, is built to describe the adhesion characteristic curve. 通过仿真实验,采集蠕滑速度和粘着系数的数据,利用RV-TS模型对粘着特性曲线进行模糊建模。