共查询到20条相似文献,搜索用时 93 毫秒
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<正>我国大部分省市对在用车的尾气检测都由原来的怠速法升级为简易工况法。汽车底盘测功机是对汽车底盘输出功率测试和按规定要求对汽车施加载荷的设备,在我国主要用在汽车综合性能检测站和汽车工况法尾气检测站。由于工况法检测对汽车底盘测功机无论在测试精度还是响应时间上都不低于综合性能检测对汽车底盘测功机的要求,所以本文就针对底盘测功测试和验收时可能会出现不符合相关标准的参数进行探讨。 相似文献
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简单介绍了汽车底盘测功机系统,给出了汽车在道路上的力学分析以及滑行能量变化法计算车辆的道路负荷,并分析了汽车底盘测功机的道路负荷模拟技术以及如何对汽车底盘测功机模拟的惯量进行检查。 相似文献
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汽车底盘测功机试验台能够在室内台架上模拟道路行驶阻力,进而检测汽车的燃料经济性、动力性、滑行性、制动性等性能。文章论述了车辆道路行驶载荷在汽车底盘测功机上的设定原理和方法,通过分析汽车在道路和转鼓试验台的受力,求出系统的数学模型。 相似文献
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受公安部交管局刘钊总工委派,有幸与各位领导、专家共同探讨车辆管理中的有关问题. 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(3-4):161-177
SUMMARY The influence of vehicle handling on the possible avoidance of accident situations is discussed. lit is shown that accident reconstruction at present does not provide the necessary information to relate the cause of accidents to the lack of road worthiness of vehicles. It follows that the vehicle behavior in proximity of its performance limit must be determined in order to infer its accident avoidance potential. The paper presents a review of the state-of-the-art of vehicle modeling, simulation of vehicle maneuvers and full scale testing. The application of the direct method of the stability theory is suggested as a possible means of obtaining performance limit envelopes which are necessary for establishing standards of the performance of vehicles. 相似文献
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S. Brennan A. Alleyne 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2001,36(4):255-277
A temporal and spatial re-parameterization of the linear vehicle Bicycle Model is presented utilizing non-dimensional ratios of vehicle parameters called p-groups. Investigation of the p-groups using compiled data from 44 published sets of Vehicle Dynamics reveals a normal distribution about a line through p-space. The normal distribution suggests numerical-values for an 'average' vehicle and maximum perturbations about the average. A state-feedback controller is designed utilizing the p-space line and the expected p-perturbations to robustly stabilize all vehicles encompassed by the normal distribution of vehicle parameters. Experimental verification is obtained using a scaled vehicle. 相似文献
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<正>联合国气候变化大会于2009年12月7日~18日在丹麦首都哥本哈根召开,各国的碳排放标准问题成为争论的焦点。温总理在这次会议上承诺:我国到2020年单位国内生产总值二氧化碳排放比2005年下降40%~45%,这个目标对于一个有着13亿多人口,每年保持8%以上的经济增长速度的国家来说,无疑是一个艰巨的任务。而实现这个任务,我国汽车行业责无旁贷。 相似文献
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H.K. Sachs 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1972,1(3):161-177
The influence of vehicle handling on the possible avoidance of accident situations is discussed. lit is shown that accident reconstruction at present does not provide the necessary information to relate the cause of accidents to the lack of road worthiness of vehicles. It follows that the vehicle behavior in proximity of its performance limit must be determined in order to infer its accident avoidance potential.
The paper presents a review of the state-of-the-art of vehicle modeling, simulation of vehicle maneuvers and full scale testing. The application of the direct method of the stability theory is suggested as a possible means of obtaining performance limit envelopes which are necessary for establishing standards of the performance of vehicles. 相似文献
The paper presents a review of the state-of-the-art of vehicle modeling, simulation of vehicle maneuvers and full scale testing. The application of the direct method of the stability theory is suggested as a possible means of obtaining performance limit envelopes which are necessary for establishing standards of the performance of vehicles. 相似文献