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随着国Ⅲ电控发动机的逐渐普及,一些工程车辆如混凝土搅拌车、散装水泥车,也纷纷换上了电控发动机.与卡车、客车不同的是,混凝土搅拌运输车因其工况特殊,对发动机的稳定性、可靠性、燃油经济性等的要求更加严格,并且有时作业环境也更为恶劣. 相似文献
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在BICES2009上,中联重科展出了一款采用意大利CIFA技术的MK28.4L混凝土搅拌运输泵车,可谓国内首次出现。该车兼具混凝土搅拌运输车和混凝土泵车的功能,适用于小方量、频繁转场的工况。 相似文献
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本文根据混凝土搅拌运输车的实际工作状况,设计出一款搅拌筒容积为8m3的重型混凝土搅拌运输车,并对其底盘选择、总体布置和参数的确定进行探讨,且绘制完成重型混凝土搅拌运输车的总体布置设计图。 相似文献
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混凝土搅拌运输车水平道路转向侧翻稳定性计算 总被引:1,自引:0,他引:1
根据国家特种车辆设计标准,选取混凝土搅拌运输车侧翻稳定性计算的各项参数,对水平路面不同转向和旋向车辆的侧翻稳定性进行计算,得到控制混凝土搅拌运输车转向侧翻的最高行驶车速,为规范二类通用底盘型混凝土搅拌运输车安全行驶车速提供了理论依据。 相似文献
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目前国内混凝土搅拌运输车液压技术主要应用于搅拌筒驱动系统,仅满足于其使用性能的要求。为此,通过对国内外先进的混凝土搅拌运输车液压技术的应用分析,提出了混凝土搅拌运输车液压技术的应用及趋势。 相似文献
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混凝土搅拌运输车的特点与一般的货物运输不同,混凝土运输有如下特点。(1)专业性强。预拌混凝土的运输必须由专门的混凝土搅拌运输车来完成。混凝土搅拌运输车属于一种特种重型专用运输车辆,要求能够自动完成装料和卸料,运输过程中要对车内的预拌混凝土不停地进行搅拌,以保证预 相似文献
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In modern four-stroke automotive engine technology, variable valve timing and lift control offer potential benefits for making
a high-performance engine. In this paper, a novel design named dual-mode electrohydraulic fully variable valve train (EHFVVT)
for both engine intake and exhaust valves is introduced. The system is mainly controlled by either proportional flow control
valves or proportional pressure relief valves, and hence two different families of valve displacement patterns can be achieved.
The construction of the mathematical model of the valve train system and its dynamic analysis are also presented in this paper.
Experimental and simulation results show that the dual-mode electrohydraulic variable valve train can achieve fully variable
valve timing and lift control, and has the potential to eliminate the traditional throttle valve in the gasoline engines.
With the proposed system, the engine performance at various speeds and loads will be significantly improved. 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(5-6):437-454
SUMMARY Since the end of 1991 BMW produces a new chassis control system for its 8 series coupé, called Active Rear-axle Kinematics (ARK). It is an electrohydraulic rear axle steering system with a speed-dependent transfer function for rear axle steering angle. It improves driving safety in severe steering maneuvers and reduces driver's stress in everyday driving. Its technology includes a comprehensive fail-safe concept which basically constitutes a dual channel design and monitors the proper system operation in a multi-stage comparison starting at the system inputs and ending at its output. 相似文献
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汽车转向系减振器原理及其阻尼特性的试验分析 总被引:3,自引:2,他引:3
介绍了汽车转向系减振器的原理及其发展概况,提出了应用高频电液伺振器进行转向系减振器阻尼特性测试的试验技术及数据处理分析方法,并给出了一种轿转转向系减振器阻尼特性的试验分析结果,建立了其非线性阻尼参数模型。 相似文献