双燃料发动机气缸排气温度的不确定性偏差现象研究
时间: 2023-03-14 11:23:59 浏览: 78
双燃料发动机气缸排气温度不确定性偏差现象的研究一直是发动机技术领域的一个重要研究课题。通过研究温度不确定性偏差的原因及其影响机理,可以有效提高双燃料发动机的性能和燃烧效率,提高发动机的可靠性,控制发动机的排放水平,以及有效改善发动机的运行状况。
相关问题
柴油和天然气双燃料发动机和汽油和天然气两用燃料发动机的本质区别
柴油和天然气双燃料发动机和汽油和天然气两用燃料发动机的本质区别在于它们所使用的燃料和燃烧方式不同。
柴油和天然气双燃料发动机是指柴油发动机在燃烧柴油的同时,还可以通过添加天然气作为辅助燃料来提高燃烧效率和降低排放。这种发动机需要两种燃料分别进入到发动机中进行燃烧,因此需要特殊的燃料供应系统和控制系统。
而汽油和天然气两用燃料发动机则是指汽油发动机可以通过添加天然气作为替代燃料来进行燃烧。这种发动机只需要一种燃料进入到发动机中进行燃烧,因此相对于柴油和天然气双燃料发动机来说,更加简单和便利。
总的来说,柴油和天然气双燃料发动机适用于需要高效率和低排放的场合,而汽油和天然气两用燃料发动机适用于需要节约成本和降低污染的场合。
feScore - EPA Fuel Economy Score (负1 = Not available) fuelCost08 - annual fuel cost for fuelType1 ($) (7) fuelCostA08 - annual fuel cost for fuelType2 ($) (7) fuelType - fuel type with fuelType1 and fuelType2 (if applicable) fuelType1 - fuel type 1. For single fuel vehicles, this will be the only fuel. For dual fuel vehicles, this will be the conventional fuel. fuelType2 - fuel type 2. For dual fuel vehicles, this will be the alternative fuel (e.g. E85, Electricity, CNG, LPG). For single fuel vehicles, this field is not used ghgScore - EPA GHG score (负1 = Not available) ghgScoreA - EPA GHG score for dual fuel vehicle running on the alternative fuel (负1 = Not available) guzzler- if G or T, this vehicle is subject to the gas guzzler tax highway08 - highway MPG for fuelType1 (2) highway08U - unrounded highway MPG for fuelType1 (2), (3) highwayA08 - highway MPG for fuelType2 (2) highwayA08U - unrounded highway MPG for fuelType2 (2),(3) highwayCD - highway gasoline consumption (gallons/100miles) in charge depleting mode (4) highwayE - highway electricity consumption in kwhrs/100 miles highwayUF - EPA highway utility factor (share of electricity) for PHEV hlv - hatchback luggage volume (cubic feet) (8) hpv - hatchback passenger volume (cubic feet) (8) id - vehicle record id lv2 - 2 door luggage volume (cubic feet) (8) lv4 - 4 door luggage volume (cubic feet) (8) make - manufacturer (division) mfrCode - 3character manufacturer code model - model name (carline) mpgData - has Your MPG data; see yourMpgVehicle and yourMpgDriverVehicle phevBlended - if true, this vehicle operates on a blend of gasoline and electricity in charge depleting mode pv2 - 2door passenger volume (cubic feet) (8) pv4 - 4door passenger volume (cubic feet) (8) rangeA - EPA range for fuelType2 rangeCityA - EPA city range for fuelType2 rangeHwyA - EPA highway range for fuelType2 trans_dscr - transmission descriptor; see http://www.fueleconomy.gov/feg/findacarhelp.shtml#trany trany - transmission UCity - unadjusted city MPG for fuelType1; see the description of the EPA test procedures UCityA - unadjusted city MPG for fuelType2; see the description of the EPA test procedures UHighway - unadjusted highway MPG for fuelType1; see the description of the EPA test procedures UHighwayA - unadjusted highway MPG for fuelType2; see the description of the EPA test procedures VClass - EPA vehicle size class year - model year youSaveSpend - you save/spend over 5 years compared to an average car ($). Savings are positive; a greater amount spent yields a negative number. For dual fuel vehicles, this is the cost savings for gasoline. sCharger - if S, this vehicle is supercharged tCharger - if T, this vehicle is turbocharged翻译
feScore - EPA燃油经济评分(-1 = 不可用)
fuelCost08 - fuelType1每年的燃料费用(美元)(7)
fuelCostA08 - fuelType2每年的燃料费用(美元)(7)
fuelType - 燃料类型,包括fuelType1和fuelType2(如果适用)
fuelType1 - 燃料类型1。对于单燃料车辆,这将是唯一的燃料类型。对于双燃料车辆,这将是传统燃料。
fuelType2 - 燃料类型2。对于双燃料车辆,这将是另一种燃料(例如E85,电力,CNG,液化石油气)。对于单燃料车辆,不使用该字段。
ghgScore - EPA温室气体排放评分(-1 = 不可用)
ghgScoreA - 双燃料车辆在替代燃料上运行的EPA温室气体排放评分(-1 = 不可用)
guzzler - 如果是G或T,则该车辆需缴纳高油耗税
highway08 - fuelType1的高速公路油耗(每加仑英里)
highway08U - fuelType1的未取整的高速公路油耗
highwayA08 - fuelType2的高速公路油耗(每加仑英里)
highwayA08U - fuelType2的未取整的高速公路油耗
highwayCD - 充电耗尽模式下的高速公路汽油消耗量(每100英里加仑)
highwayE - 高速公路电能消耗量(每100英里千瓦时)
highwayUF - PHEV的EPA高速公路实用因子(电力比例)
hlv - 掀背车行李箱容积(立方英尺)(8)
hpv - 掀背车乘客空间容积(立方英尺)(8)
id - 车辆记录ID
lv2 - 两门车行李箱容积(立方英尺)(8)
lv4 - 四门车行李箱容积(立方英尺)(8)
make - 制造商(部门)
mfrCode - 制造商的3个字符代码
model - 车型名称(产品线)
mpgData - 是否有您的MPG数据;请参阅yourMpgVehicle和yourMpgDriverVehicle
phevBlended - 如果为true,则该车辆在充电耗尽模式下使用汽油和电力混合动力
pv2 - 两门车乘客空间容积(立方英尺)(8)
pv4 - 四门车乘客空间容积(立方英尺)(8)
rangeA - fuelType2的EPA续航里程
rangeCityA - fuelType2的EPA城市续航里程
rangeHwyA - fuelType2的EPA高速公路续航里程
trans_dscr - 变速器描述符;请参阅http://www.fueleconomy.gov/feg/findacarhelp.shtml#trany
trany - 变速器类型
UCity - 未调整的fuelType1城市里程;请参阅EPA测试程序的描述
UCityA - 未调整的fuelType2城市里程;请参阅EPA测试程序的描述
UHighway - 未调整的fuelType1高速公路里程;请参阅EPA测试程序的描述
UHighwayA - 未调整的fuelType2高速公路里程;请参阅EPA测试程序的描述
VClass - EPA车辆尺寸类别
year - 车型年份
youSaveSpend - 与平均车辆相比,5年内的节省/支出金额(美元)。节省金额为正数;支出金额较多为负数。对于双燃料车辆,这是汽油的节约成本。
sCharger - 如果为S,则该车辆为增压车型
tCharger - 如果为T,则该车辆为涡轮增压车型