排序方式: 共有221条查询结果,搜索用时 31 毫秒
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(12):1779-1796
The paper presents an anti-lock braking system (ABS) control logic based on the measurement of the longitudinal forces at the hub bearings. The availability of force information allows to design a logic that does not rely on the estimation of the tyre–road friction coefficient, since it continuously tries to exploit the maximum longitudinal tyre force. The logic is designed by means of computer simulation and then tested on a specific hardware in the loop test bench: the experimental results confirm that measured wheel force can lead to a significant improvement of the ABS performances in terms of stopping distance also in the presence of road with variable friction coefficient. 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(8):1245-1265
A traction control system (TCS) for two-wheel-drive vehicles can conveniently be realised by means of slip control. Such a TCS is modified in this paper in order to be applicable to four-wheel-drive vehicles and anti-lock braking systems, where slip information is not readily available. A reference vehicle model is used to estimate the vehicle velocity. The reference model is excited by a saw-tooth signal in order to adapt the slip for maximum tyre traction performance. The model-based TCS is made robust to vehicle modelling errors by extending it with (i) a superimposed loop of tyre static curve gradient control or (ii) a robust switching controller based on a bi-directional saw-tooth excitation signal. The proposed traction control strategies are verified by experiments and computer simulations. 相似文献
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为了提高汽车ABS整车检测效率,开发了一种新型的基于台架的汽车ABS整车检测系统。该系统利用飞轮的转动惯量模拟车辆在道路上运动的平动惯量;通过扭矩控制器在4个车轮所在滚筒上加载不同的扭矩,实现不同路面附着系数的动态模拟;采用基于CAN总线的分布式网络测控技术完成台架的运动控制和车辆速度数据的采集;利用BP神经网络自学习... 相似文献
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汽车防抱制动系统的自寻最优控制 总被引:4,自引:1,他引:3
通过分析车轮制动的工作原理,提出了汽车防抱制动系统的自寻最优控制方法。仿真结果表明,在不同的路况下,防抱制动系统的自寻最优控制取得了满意的效果。文中提出的自寻最优控制方法相对以往的控制方法更为简单,更适合于实际应用。 相似文献
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高速公路项目融资方式——BOT与ABS探析 总被引:1,自引:0,他引:1
研究目的:解决我国高速公路资金短缺的现状,提出拓展高速公路融资渠道的一些建议。研究方法:本文针对高速公路项目适用的BOT、ABS融资模式进行研究,介绍了BOT、ABS这两种主要用于高速公路项目建设的融资模式的基本思路,分析其在高速公路项目融资中必要性、可行性及不足之处。对两种高速公路项目融资模式进行了对比分析。研究结论:中国公路建设资金需求巨大,供给不足,一直以来是困扰我国公路交通顺利、持续、健康发展的焦点问题,也是一个难点问题。项目融资对应于高速公路建设项目,无论从融资成本、融资效率、还是对资金供求双方的吸引程度等方面都算得上高效的融资方式。与传统的一般融资方式相比,项目融资具有显著的优越性。项目融资包括许多模式,针对高速公路建设项目的特点,选择适合的模式进行融资,是应用项目融资成功的重要环节。BOT与ABS比较适合在高速公路项目融资中应用。区别其不同的特点,合理利用,将解决我国高速公路建设资金短缺的现状。 相似文献
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