A method of estimating an ideal air-fuel ratio in an internal combustion engine, comprises receiving an output of an upstream air-fuel ratio sensor and an output of a downstream air-fuel ratio sensor, the upstream air-fuel ratio sensor being attached to an exhaust gas passage such that it ...
you COULD alter the ve table to get an air fuel ratio so your fuel trims show the target AFR, but that doesn't make it Right, it makes an equation work. Start backwards, begin tuning wide open throttle and changing your fuel injectors flow rate instead of your ve table and eventually...
Question: Consider an ideal turbojet engine with afterburner operating at the below conditions and, using excel sheet or MATLAB, generate the below performance curves of specific thrust, specific fuel consumption, fuel to air ratio, and efficiencies as f...
In addition, torch ignition can lead to substantial thermal efficiency gains for either leaner or rich air-fuel ratios than the optimum for the conventional ignition system. On the richer side, in particular, the torch-ignited engine is capable of operating at maximum brake torque spark timings,...
aWith EGR, the engine can use a higher boost pressure and compression ratio to achieve a better performance and higher thermal efficiency for a stoichiometric air-fuel mixture 与EGR,引擎可能使用更高的升压力和压缩比达到一张更好的表现和更高的热效率为一个化学计量学的空气燃料混合物 [translate] a...
Because you never go into CL, you're going to need to do a better job of dialing in your open loop table for cold start. Keep increasing the fuel/air ratio in that table until you get your desired warm up richened up. Be very aggressive here it's easier to take some back out ...
For both processes the simulations are compared to a reference simulation using a Redlich-Kwong equation-of-state based on the critical properties of all constituents. Auto-ignition is studied for several n-heptane/air mixtures and the results show that the ideal gas assumption can impose large ...
Divers going to great depths in the sea are able to circumvent this problem somewhat by breathing a compressed helium-oxygen mixture in which the oxygen partial pressure is adjusted so that it is always equal to its value in atmospheric air at STP. Helium, being much less soluble in body ti...
By using of investigation data of air pollution source of Lanzhou city in 2000 ,were analyzed by grid of the year share percentage of the chief air pollution source and air pollutant 1km×1km . 利用2 0 0 0年兰州市大气污染源调查资料 ,对影响该市的主要大气污染物的年分担率进行 1 km× ...