不同海拔对汽油/天然气双燃料轻型货车加速性能的影响  

Effect of Different Altitudes on the Acceleration Performance of Gasoline/Natural Gas Dual-Fuel Light Trucks

作　　者：李春波 姜壁刚 张春城 白朝谷 Li Chunbo;Jiang Bigang;Zhang Chuncheng;Bai Chaogu(CATARC Automotive Test Center(Kunming)Co.,Ltd.,Kunming 651701,China)

机构地区：[1]中汽研汽车检验中心(昆明)有限公司,云南昆明651701

出　　处：《专用汽车》2025年第4期84-86,共3页Special Purpose Vehicle

摘　　要：在不同海拔对轻型天然气货车进行实际道路加速性能试验,通过在1900 m、2400 m和3300 m进行加速试验,分析了不同海拔条件下对汽油/天然气车辆加速性能的影响。结果表明:在原地起步加速0~80 km/h满载试验中,天然气和汽油在3200 m比1900 m的加速时间分别增加了25.5%和19.2%;在超车加速40~60 km/h和60~80 km/h满载试验中,天然气的加速时间随着海拔增加而增加,在中高速时3200 m的加速时间比1900 m多42.1%,在中低车速时3200 m的最大加速度比1900 m慢0.08 m/s^(2)。高海拔环境下的天然气加速性能衰减比汽油更明显,在中高车速时进行加速更为显著。Real road acceleration performance tests were conducted on light-duty natural gas trucks at different altitudes,and the effects of different altitude conditions on the acceleration performance of gasoline/natural gas vehicles were analyzed by conducting acceleration tests at 1900 m、2400 m and 3300.The results show that:in the starting-in-place acceleration 0~80 km/h full load test,the acceleration time of natural gas and gasoline at 3200 m increased by 25.5%and 19.2%respectively compared with that at 1900 m.In the overtaking acceleration 40~60 km/h and 60~80 km/h full load tests,the acceleration time of natural gas increased with the increase of altitude,and the acceleration time of natural gas at medium and high speeds was 42.1%more than that of 3200 m.The acceleration time of natural gas was 42.1%more than that of gasoline at 3300 m compared with that of gasoline at 1900 m.The acceleration time at 3200 m is 42.1%more than that at 1900 m.The maximum acceleration at 3200 m is 0.08 m/s^(2) slower than that at 1900 m.The acceleration of natural gas at high altitude is more obvious than that of gasoline,and the acceleration is more significant at medium and high speeds.

关 键 词：高海拔 轻型汽车 动力性 加速性能 

分 类 号：U461.3[机械工程—车辆工程]