三轮摩托车（L5类）尾气一氧化碳含量分析数据

三轮摩托车（L5类）采用火花塞放电点火燃烧，燃烧后产物发生高温离解倾向，特别是某些死区点不着火或在某些工况下断火，使排放物中含有碳氢化合物(hc)。因此，通过对车辆尾气碳氢化合物含量检测，分析研判尾气不合格原因，为用户甄别发动机进气阀门橡胶圈更换、火花塞清洗保养和三元催化器和氧传感器的故障排查提供参考。1.数据采集：对三轮摩托车（L5类）尾气一氧化碳含量进行检测。2.数据检测：稀释气体由排放尾气和环境空气混合而成，利用空气中氧气浓度值，分析仪测得尾气中CO浓度以及稀释气体中CO浓度，可得到进入流量计的排放尾气被空气稀释的比例；测量的结果经温度和压力修正，获得标准体积流，根据尾气的稀释比例，计算出排放尾气的实际流量。根据尾气成份浓度和尾气流量，可测出三轮摩托车尾气中排放污染物含量。该数据和底盘测功机检测发动机实际输出功率相结合，实时分析车辆在负荷工况下排气污染物的排放质量。3.数据处理：CO=1/s*V*dco*COc/106，其中S为行驶距离，单位KM；V为尾气的实际流量，单位为L;一氧化碳在温度为293.2K，大气压力为101.33kPa时的密度，dco=1.164kg/m3；COc稀释排气中一氧化碳的容积浓度，单位为10-6（V/V）。一氧化碳限值为4.0（g/km），超过该数值为不合格。4.数据应用：通过检测数据分析研判，可以判断三轮摩托车（L5类）尾气一氧化碳含量是否超标，为环保监管和车辆管理提供数据支持。Three-wheeled motorcycles (Category L5) employ spark plug discharge ignition for combustion. The combustion products tend to undergo high-temperature dissociation, and misfire may occur in certain dead zones or under specific working conditions, leading to the presence of hydrocarbon (HC) in exhaust emissions. Therefore, by detecting the HC content in vehicle exhaust and analyzing the causes of unqualified exhaust, this dataset can provide references for users to carry out targeted maintenance and troubleshooting, including replacement of rubber rings for engine intake valves, cleaning and maintenance of spark plugs, as well as fault detection of three-way catalysts and oxygen sensors. 1. Data Collection: Detect the carbon monoxide (CO) content in the exhaust of three-wheeled motorcycles (Category L5). 2. Data Detection: The dilution gas is a mixture of exhaust emissions and ambient air. Using the oxygen concentration in the ambient air, the analyzer measures the CO concentration in the exhaust and the CO concentration in the dilution gas, thus obtaining the dilution ratio of the exhaust entering the flow meter after being diluted by air. The measured results are corrected by temperature and pressure to acquire the standard volumetric flow rate, and the actual flow rate of the exhaust is calculated based on the dilution ratio. The content of emitted pollutants in the exhaust of three-wheeled motorcycles can be measured according to the exhaust component concentration and actual exhaust flow rate. Combined with the actual output power of the engine detected by the chassis dynamometer, this dataset can realize real-time analysis of the emission quality of exhaust pollutants of the vehicle under load working conditions. 3. Data Processing: The calculation formula for CO emission is: $CO = frac{1}{s} imes V imes d_{CO} imes CO_c / 10^6$, where: $s$ is the driving distance with the unit of kilometer (km); $V$ is the actual flow rate of exhaust with the unit of liter (L); $d_{CO}$ is the density of carbon monoxide at 293.2 K and standard atmospheric pressure of 101.33 kPa with a fixed value of 1.164 kg/m³; $CO_c$ is the volumetric concentration of carbon monoxide in the diluted exhaust with the unit of 10⁻⁶ (V/V). The limit value of carbon monoxide emission is 4.0 (g/km), and vehicles exceeding this limit are deemed unqualified. 4. Data Application: Through analysis and evaluation of the detection data, it can be determined whether the carbon monoxide content in the exhaust of three-wheeled motorcycles (Category L5) exceeds the standard, providing data support for environmental protection supervision and vehicle management.

搜集汇总

数据集介绍

特点

该数据集记录了513条三轮摩托车（L5类）尾气一氧化碳含量的检测数据，涵盖车牌号、车辆所有人、分析日期等关键信息，主要用于分析尾气排放是否合格，并为车辆维护提供参考。数据更新频次为按需，适用于环保监管和车辆管理场景。