共查询到19条相似文献,搜索用时 171 毫秒
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对澳大利亚设计规则ADR38/03关于挂车制动系统的试验检测项目进行了介绍,主要对整车项目中的制动反应时间、行车制动兼容性测试、应急制动和行车制动热衰退试验,以及制动控制系统及零部件检测项目的相关试验进行了介绍,阐述了试验过程中的注意事项,为企业进行相关试验提供参考。 相似文献
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本文介绍了汽车制动系统的分类及各自的作用,重点介绍了轿车普遍采用的液压制动系统的结构及其工作原理,并对汽车常见的制动故障(包括制动不良、制动失效、制动跑偏等)的原因进行了阐述。同时结合多年道路试验工作经验,通过典型的实例对制动不良现象出现的原因、故障诊断的过程进行具体分析,进而得出解决问题的方法。 相似文献
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为了检测汽车防抱死制动系统的可靠性,在转毂试验台上对该系统进行了测试研究。介绍了转毂试验台的结构、原理、工作过程及测试程序。在转毂试验台上模拟了汽车的各种动态工况,测试了防抱死制动系统的性能。试验表明,该转毂试验台及其测试程序能满足防抱死制动系统性能的测试要求。 相似文献
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电动汽车通过常规摩擦制动和驱动电机再生制动实现防抱死功能。本文中分析了防抱死制动系统的优点和不足,提出基于PI控制的防抱死控制系统,并在实车上进行试验验证。设计了3组不同结构配置的防抱死制动系统:仅有液压防抱死系统;仅前轴有再生防抱死系统;前轴有液压和再生防抱死系统、后轴有液压防抱死系统。评估了3组系统的制动性能。液压防抱死系统以规则控制器为基础;连续再生防抱死制动系统通过目标增益、比例积分和前馈与反馈控制系统控制滑移率。低附路面的试验结果表明:再生防抱死制动系统在制动过程中能准确跟踪理想车轮滑移率曲线,降低车身振动频率,提高了行驶舒适性。 相似文献
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Functions of anti-lock braking for full electric vehicles (EV) with individually controlled wheel drive can be realized through conventional brake system actuating friction brakes and regenerative brake system actuating electric motors. To analyze advantages and limitations of both variants of anti-lock braking systems (ABS), the presented study introduces results of experimental investigations obtained from proving ground tests of all-wheel drive EV. The brake performance is assessed for three different configurations: hydraulic ABS; regenerative ABS only on the front axle; blended hydraulic and regenerative ABS on the front axle and hydraulic ABS on the rear axle. The hydraulic ABS is based on a rule-based controller, and the continuous regenerative ABS uses the gain-scheduled proportional-integral direct slip control with feedforward and feedback control parts. The results of tests on low-friction road surface demonstrated that all the ABS configurations guarantee considerable reduction of the brake distance compared to the vehicle without ABS. In addition, braking manoeuvres with the regenerative ABS are characterized by accurate tracking of the reference wheel slip that results in less oscillatory time profile of the vehicle deceleration and, as consequence, in better driving comfort. The results of the presented experimental investigations can be used in the process of selection of ABS architecture for upcoming generations of full electric vehicles with individual wheel drive. 相似文献
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主要介绍欧洲的整车制动法规体系,分析其与我国相关标准的差异;通过大量的出口认证试验,指出在欧洲制动认证试验中容易出现的问题及解决措施。 相似文献
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根据摩擦片的导向,在国际上主要有两种制动钳的设计概念,即德国大陆的专利产品FN制动钳(推拉式)和Collete制动钳(只推式).FS浮式制动钳综合这两种制动钳的优缺点及创新设计,提出研发FS浮式制动钳的技术方案. 相似文献
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Design of a hydraulic anti-lock braking modulator and an intelligent brake pressure controller for a light motorcycle 总被引:1,自引:0,他引:1
C-Y Lu M-C Shih 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2005,43(3):217-232
The object of this paper is to design a new hydraulic modulator and an intelligent sliding mode pulse width modulation (PWM) brake pressure controller for an anti-lock braking system, for application to light motorcycles. The paper presents a design principle and a mathematical analysis of the hydraulic anti-lock braking modulator. The intelligent sliding mode PWM brake pressure controller based on vehicle acceleration is designed and tested. A three-phase pavement experiment and a rear brake influence test are undertaken to verify the performance of the controller and the modulator. A light motorcycle is built for the real vehicle anti-lock braking experiments. The experimental results show that both the intelligent controller and the hydraulic modulator designed in the study perform well in the anti-lock braking operation. 相似文献
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飞机牵引车全液压制动系统动态性能分析 总被引:2,自引:0,他引:2
分析了全液压制动系统的动态性能,并建立了全液压制动系统的数学模型.基于数学模型,应用Matlab/Simulink仿真程序,对全液压制动系统的动态特性进行仿真.并将仿真结果与气压制动系统和气顶液制动系统进行了分析对比,证明全液压制动系统具有良好的制动性能. 相似文献