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Pour essayer d'imiter les résultats des tests sur le banc il serait nécessaire.a) Selon mes observations, pour obtenir un BSFC stabilisé, il faut attendre au moins 15 secondes avec une position d'accélérateur fixe pour que ICE optimise la conso (et on constate que le meilleur BSFC est corrélé à une forte avance à l'allumage)
Secrnd_kWaBSFCnCases |
1.51232.0314370 |
1.50.5231.0232116 |
2.51231.0274784 |
2.50.5231.0196171 |
3.51231.0244188 |
3.50.5231.0169851 |
4.51231.0219653 |
4.50.5231.0149155 |
5.51231.0199360 |
5.50.5231.0132040 |
SELECT
Round(ice_rpm/50.0)*50 as ICE_RPM,
Round(f.ICE_PWR/ice_rpm*9549/2.0)*2 as ICE_TORQUE,
round(avg(f.BSFC)) as avg_BSFC,
round(81.967/avg(f.BSFC),3)*100 as avg_Therm_Rend,
count(*) as nCases
FROM fastlog f
WHERE
f.ice_rpm>=950 AND
f.ICE_PWR>=2 AND
f.ICE_TEMP>=70 AND
Round(f.ICE_PWR)=(Select round(avg(f1.ICE_PWR)) from fastlog f1
Where f1.TIMESTAMP between (f.TIMESTAMP-1500) and (f.TIMESTAMP-1))
GROUP BY
Round(ice_rpm/50.0)*50.0,
Round(f.ICE_PWR/ice_rpm*9549/2.0)*2
HAVING
Count(*)>=10
;
[COLOR=RoyalBlue]/*
* create a temporary table to store tsdeb,tsfin selecting only one carmodel
*/
DROP Table IF EXISTS 'Temp';
CREATE TABLE Temp AS SELECT tsdeb, tsfin FROM tripinfo i, trips t WHERE i.carmodel=15 AND I.TIMESTAMP = T.TSFIN;
-- use this temporary table as a filter to select from FASTLOG
SELECT
Round(ice_rpm/50.0)*50 as ICE_RPM,
Round(f.ICE_PWR/ice_rpm*9549/2.0)*2 as ICE_TORQUE,
round(avg(f.BSFC * (1-f.ltft/100))) as avg_BSFC, -- correct bsfc according LTFT (use E85)
count(*) as nCases
FROM fastlog f, temp tt
where
f.timestamp between tt.tsdeb AND tt.tsfin AND
f.ice_rpm>=950 AND
f.ICE_PWR>=2 AND
f.ICE_TEMP>=70 AND
Round(f.ICE_PWR)=(Select round(avg(f1.ICE_PWR)) from fastlog f1
Where f1.TIMESTAMP between (f.TIMESTAMP-2500) and (f.TIMESTAMP-1))
GROUP BY
ICE_RPM,
ICE_TORQUE
HAVING
Count(*)>=10
[/COLOR]
[FONT=Courier New][SIZE=2][COLOR=RoyalBlue] ;[/COLOR]
[/SIZE][/FONT]