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低温环境对增压发动机油耗及排放的影响

Automobile Parts(2022)

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Abstract
通过试验方法研究了低温环境对汽车油耗和排放污染物的变化规律,探究低温环境对油耗及排放的影响机制,并分析了整车行驶阻力、整车电耗、怠速油耗、暖机过程对油耗的影响.试验结果表明:低温环境下,油耗变化量相对常温热机工况增加10%~30%,排放变化量相对常温热机工况增加79%~21376%;环境温度越低,克服阻力做功越大,发电机电耗量越大,怠速油耗量越大,暖机时间越长,对油耗的影响越多;当环境温度低于10℃时,环境温度每降低5℃时综合工况油耗升高0.002~0.003 L/km.
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Key words
low-temperature environment,comprehensive condition,emission,fuel consumption
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