共查询到19条相似文献,搜索用时 140 毫秒
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在对非道路摩托车的实际检测中,整车产品质量存在如车架机械强度不够、车辆可靠耐久性不够、最高车速与实际车速不匹配、前后轮制动力不符合要求、排放超标,整车装配及轮辋偏差超标等问题,从中可以看出目前的非道路摩托车产品质量有待进一步提高,各企业唯有从车辆的设计、材料、工艺、装配和性能上全面改进产品,才能使非道路车产业得以长足发展. 相似文献
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一、故障现象车主描述在高速上以大约120km/h的速度行驶中,油门没动,车速突然降下来了,再加油门,车速还是不够快。接车后,维修技师对车辆进行了信息登记,该车为天津一汽丰田汽车有限公司生产、整车型号为TV7163GL、装配1ZR发动机、排量为1.598L、装配自动变速器、行驶里程10万km。对车辆进行常规检查后上车路试,发现发动机转速在2000r/min以上时,车速达不到规定的时速,“D”挡升挡感觉没有升到最高挡,同时组合仪表显示屏上故障指示灯常亮。如图1所示。 相似文献
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离合器打滑
a)手操纵式离合器打滑
摩托车起步时,虽然已合上离合器,但加大油门,车辆仍不能平顺起步。摩托车加速时,尽管加大了油门,发动机的转速很快提高,但车速并未相应地提高。相反,还有跑不起来的感觉;在上坡、道路泥泞及重负荷时,车辆行驶不平稳或不能行驶,这种故障现象称为离合器打滑。 相似文献
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摩托车国Ⅲ工况排放测试和耐久性测试中,摩托车要在底盘测功机上跟踪规定的曲线行驶,风机模拟道路行驶中的自然风冷却车辆,速度满足风速等于车速。由于从风机出口断面到摩托车发动机有一定距离,随着距离的增加,出口风速、风量会发生衰减和扩散,这样,到达发动机的风速必然小于车速,致使冷却效果下降,模拟效果不佳,长时间运行还会对发动机、催化转化器产生损害,影响排放结果。 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(8):581-599
A motorcycle towing a single-wheel trailer may provide useful transport for light cargo on narrow tracks and off-road use, particularly in rural areas of developing countries. Four designs of such trailers are described. Linear models are derived for the lateral dynamics of an off-road motorcycle towing this type of trailer straight ahead at constant speed. The trailers were tested behind an instrumented motorcycle. Linear autoregressive models were fitted to the experimental data using system identification techniques. Analytical and experimentally derived models largely agreed on frequency, damping and shape of the weave, wobble and trailer sway normal modes. The trailers made the motorcycle’s steering heavier but the analytical models did not predict this. The location of the articulation axes between the motorcycle and the trailer were found to be critical for stability. The best trailer design handled well with loads up to 200 kg and speeds up to 70 km/h. 相似文献
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Stephen R. James 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2005,43(8):581-599
A motorcycle towing a single-wheel trailer may provide useful transport for light cargo on narrow tracks and off-road use, particularly in rural areas of developing countries. Four designs of such trailers are described. Linear models are derived for the lateral dynamics of an off-road motorcycle towing this type of trailer straight ahead at constant speed. The trailers were tested behind an instrumented motorcycle. Linear autoregressive models were fitted to the experimental data using system identification techniques. Analytical and experimentally derived models largely agreed on frequency, damping and shape of the weave, wobble and trailer sway normal modes. The trailers made the motorcycle's steering heavier but the analytical models did not predict this. The location of the articulation axes between the motorcycle and the trailer were found to be critical for stability. The best trailer design handled well with loads up to 200 kg and speeds up to 70 km/h. 相似文献
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液压盘式制动系统因技术先进、稳定性好、无自锁现象及维修方便等优点,在国外已被广泛应用于摩托车前、后轮制动器上,而我国则仅限于前轮制动器的使用,后轮制动器多使用技术相对简单的鼓式制动器。为提高我国摩托车的技术含量,摩托车后轮液压盘式制动器的研究非常必要,同时也是为摩托车制动系统向更高技术含量的防抱死制劝系统发展做好技术储备。 相似文献
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目前电动摩托车在使用时缺少安全记录仪,这就导致一旦电动摩托车出现意外情况很难对责任进行判定,并且一旦出现电动摩托车被偷盗的情况,也很难对电动摩托车进行追回,不利于电动摩托车的使用,这是现有技术电动摩托车使用的不足之处.基于以上的原因,本设计一款基于物联网技术的多功能行车记录仪,可以解决现有高速电动摩托车多功能联网安全记... 相似文献
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大电磁兼容性是一项越来越受重视的环境指标,也是一项重要的安全指标。我国相关政府部门现在正在研究、制定机动车的抗干扰标准,从已有的试验结果来看,目前的电动摩托车产品抗干扰性能不容乐观。整个电动摩托车行业都应对电动摩托车的电磁兼容性提起足够的重视,跟踪最新的标准动态,提前做好应对准备,完善自身产品,提升我国电动摩托车的环保性能和安全性能。 相似文献
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随着电动摩托车标准的发布,一些传统摩托车企业都针对电动摩托车进行研发投资,希望可以获得生产准入,在电动摩托车市场上有所作为。但有些企业在设计过程中也暴露出一些问题,有些直接将摩托车配件改造成电动摩托车,有些对标准不够了解,做出来的样车产品质量无法满足标准要求。 相似文献
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