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汽车防抱死制动系统(ABS)可以控制汽车制动时的滑移程度,防止车轮抱死拖滑,提高汽车制动时的操纵稳定性。文章介绍了ABS的基本功能和控制原理,阐述了目前ABS所采用的控制技术及发展方向。指出随着车速传感器技术的发展,基于车轮滑移率的各种控制算法将被广泛重视和采用;将各种控制算法结合起来是ABS控制技术的一个重要发展方向。 相似文献
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ABS是英文ANTILOCK BRAKE SYSTEM的缩写,即防抱死制动系统。ABS系统能极大地改善和提高车辆的制动性能,它能够在制动过程中对被制动车轮的制动压力进行自适应调节,防止制动车轮发生抱死,是提高车辆主动安全性的重要装备。本文在介绍防抱死制动系统(ABS)的结构和工作原理的基础上,重点结合VBOX设备和MT500/e KFZ轮速传感器介绍某轻型客车的ABS试验流程,同时对试验结果进行比较和分析,得出该车辆的防抱死制动性能的综合评价。 相似文献
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某特种越野车采用气顶液制动系,制动结构复杂,相应ABS的开发所需成本高、周期长,为了提高整车制动性能,通过分析其制动特征和不同ABS的选配方案及布置形式,选配、安装合适的ABS. 相似文献
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制动防抱死系统(ABS)是提高车辆制动性能和行车安全性的重要装置。文章通过对CJY6470E轻型客车ABS制动防抱死系统的试验,分析ABS的正常与非正常工作条件下车轮的线速度变化曲线,并判断ABS与车型的匹配状态。 相似文献
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汽车防抱死制动系统简称ABS,是汽车的一种自动安全装置,附加在原来的制动系统上.汽车ABS可以防止制动时车轮抱死,提高了车辆制动时方向的稳定性和可操纵性.因此,ABS已成为目前世界上普遍公认的提高汽车安全性能必不可少的系统. 相似文献
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有ABS就放心开快车目前很多汽车都装有防抱死制动系统ABS,有些驾驶员认为这类汽车稳定性和安全性绝对可靠。事实并非如此。ABS的作用有两个一是防止汽车制动时车轮抱死而产生制动跑偏,提高汽车制动时的转向稳定性;二是把轮胎滑移率控制在10%-20%,提高车辆的制动力。 相似文献
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汽车防抱死系统是由Werner在1932年发明的,它的英文缩号就是ABS。ABS可以显著提高制动效能和安全性,但不了解ABS的人会想,将“车轮抱死”岂不是制动最为彻底?殊不知这正是直觉思维的误区。车轮抱死以后,不仅制动能力大为下降,方向稳定性也变差,反而是“将要抱死,又没抱死”的时候,制动效果最佳。目前ABS技术已日趋势成熟,制造成本不断降低。1990年美国仅有2%~5%的轿车和轻型货车上装备了ABS。专家们预测到1995年底,ABS在美国的普及率将达到95%。预计到2000年时,全世界将有90%以上的汽车装用ABS。ABS由车轮速度传… 相似文献
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Improvement of drivability and fuel economy with a hybrid antiskid braking system in hybrid electric vehicles 总被引:1,自引:0,他引:1
J. L. Zhang Ch. L. Yin J. W. Zhang 《International Journal of Automotive Technology》2010,11(2):205-213
When braking on wet roads, Antilock Braking System (ABS) control can be triggered because the available brake torque is not
sufficient. When the ABS system is active, for a hybrid electric vehicle, the regenerative brake is switched off to safeguard
the normal ABS function. When the ABS control is terminated, it would be favorable to reactivate the regenerative brake. However,
recurring cycles from ABS to motor regenerative braking could occur. This condition is felt to be unpleasant by the driver
and has adverse effects on driving stability. In this paper, a novel hybrid antiskid braking system using fuzzy logic is proposed
for a hybrid electric vehicle that has a regenerative braking system operatively connected to an electric traction motor and
a separate hydraulic braking system. This control strategy and the method for coordination between regenerative and hydraulic
braking are developed. The motor regenerative braking controller is designed. Control of regenerative and hydraulic braking
force distribution is investigated. The simulation and experimental results show that vehicle braking performance and fuel
economy can be improved and the proposed control strategy and method are effective and robust. 相似文献
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对装有ABS汽车的制动过程进行分析;依据根据功能原理,建立了制动距离的计算数学模型,用该模型推导了ABS汽车在平路和坡道上制动距离的计算公式,该公式表明汽车制动距离的相关影响因素。同时该公式可以应用于汽车制动性能的分析。 相似文献
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《JSAE Review》1994,15(3):223-228
The effectiveness of ABS for the motorcycle has been evaluated by comparison with deal braking. However, it is almost impossible for the typical rider to perform ideal braking in an emergency. We conducted braking in a turn test by skilled and less-skilled riders, for the purpose of evaluating the effectiveness of ABS for the typical rider and obtaining data for a method of evaluating motorcycle ABS performance. It was shown that ABS for the motorcycle is effective for both skilled and less-skilled riders in terms of braking distance and vehicle stability. 相似文献
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本文主要阐述了汽车制动防抱死系统的原理、构造、工作过程以及控制方式进行了综述。针对我公司牵引汽车在进行ABS试验中存在的问题,进行总结,论述了ABS能有效缩短制动距离提高汽车制动时方向稳定性的原因,并对ABS集成化应用改进的方向提出了见解。 相似文献
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Yue Shi Bin Li Jiannan Luo 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2019,57(3):336-368
Emergency brake technologies have always been a major interest of vehicle active safety-related studies. On homogeneous surfaces, traditional anti-lock brake system (ABS) can achieve efficient braking performance and maintain the handling capability as well. However, when road conditions are time variant during the braking process, or different at the bilateral wheels, braking stability performance is likely to be degraded. To address this problem and enhance ABS performances, a practical identifier of road variations is developed in this study. The proposed identifier adopts a statechart-based approach and is hierarchically constructed with a wheel layer and a full vehicle layer identifier. Based on the identification results, modifications are made to a four-phase wheel-behaviour-based ABS controller to enhance its performance. The feasibility and effectiveness of the proposed identifier in collaborating with the modified ABS controller are examined via simulations and further validated by track tests under various practical braking scenarios. 相似文献
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随机不平路面上的ABS制动研究 总被引:1,自引:0,他引:1
在ADAMS中建立整车和各种等级随机不平路面的模型,在MATLAB/simu link中建立逻辑门限值ABS控制方法,利用联合仿真技术研究随机不平路面对ABS的影响,得到随机不平路面上ABS制动过程中轮胎纵向力、角速度和制动距离等重要参数的变化规律,为ABS在随机不平路面上的抗干扰措施提供依据。 相似文献
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M. Sofian Basrah Efstathios Siampis Efstathios Velenis Dongpu Cao Stefano Longo 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2017,55(11):1665-1685
Modern hybrid electric vehicles employ electric braking to recuperate energy during deceleration. However, currently anti-lock braking system (ABS) functionality is delivered solely by friction brakes. Hence regenerative braking is typically deactivated at a low deceleration threshold in case high slip develops at the wheels and ABS activation is required. If blending of friction and electric braking can be achieved during ABS events, there would be no need to impose conservative thresholds for deactivation of regenerative braking and the recuperation capacity of the vehicle would increase significantly. In addition, electric actuators are typically significantly faster responding and would deliver better control of wheel slip than friction brakes. In this work we present a control strategy for ABS on a fully electric vehicle with each wheel independently driven by an electric machine and friction brake independently applied at each wheel. In particular we develop linear and nonlinear model predictive control strategies for optimal performance and enforcement of critical control and state constraints. The capability for real-time implementation of these controllers is assessed and their performance is validated in high fidelity simulation. 相似文献