Using a set of measuring system installed on a testing vehicle, 15 criterion numbers, which describethe details of vehicle's driving pattern and emission characteristic on real road condition of Tianjin, are obtainedfrom a large quantity of raw data. The results show that the characteristic of driving pattern in Tianjin is verydifferent from that of ECE-15 and FTP-75. That is to say, neither of these two emission testing procedures issuitable in China. A new driving cycle is developed which is accordance with the driving pattern of Tianjin. Thiscycle can be used to evaluate the emission levels of vehicles under real-road condition in laboratory, and can berecommended as a testing procedure used in China.%利用自行设计的机动车车载实时道路排放测试系统,通过实际道路测试,获得描述天津市不同类型道路机动车行驶的15个特征参数.结果表明,ECE-15和FTP-75测试循环与天津市机动车实际道路行驶特征有较大差异.根据实测结果,合成出可真实反映天津市机动车道路行驶特征的测试循环,该测试循环可用于实验室中对机动车实际道路排放水平的评价.
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机译：Using a set of measuring system installed on a testing vehicle, 15 criterion numbers, which describethe details of vehicle's driving pattern and emission characteristic on real road condition of Tianjin, are obtainedfrom a large quantity of raw data. The results show that the characteristic of driving pattern in Tianjin is verydifferent from that of ECE-15 and FTP-75. That is to say, neither of these two emission testing procedures issuitable in China. A new driving cycle is developed which is accordance with the driving pattern of Tianjin. Thiscycle can be used to evaluate the emission levels of vehicles under real-road condition in laboratory, and can berecommended as a testing procedure used in China.%利用自行设计的机动车车载实时道路排放测试系统,通过实际道路测试,获得描述天津市不同类型道路机动车行驶的15个特征参数.结果表明,ECE-15和FTP-75测试循环与天津市机动车实际道路行驶特征有较大差异.根据实测结果,合成出可真实反映天津市机动车道路行驶特征的测试循环,该测试循环可用于实验室中对机动车实际道路排放水平的评价.
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