Decomposition Analysis of an Automotive Powertrain Design ...

Table I Summary of Coordination Strategy Iterations.
I II III IV V VI VII VIII IX X XI
MP SP MP SP
Initial Final Intial Final
MP ξ 2.75 2.3179 2.3179 2.3493
ξ 1.55 1.4230 1.4230 1.4326
ξ .72 0.5938 0.5938 0.6011
ξ 3.4666 3.4615 3.4615 3.4530
α 1.0 1.2000 1.2000 1.2000
Vd liters 3.1856 2.9274 2.9274 2.7871
Inital Final Initial Final
SP b mm 90.93 88.41 86.56 85.15 85.15
s mm 81.74 79.47 82.86 81.51 81.51
cr 9.25 9.25 9.30 9.37 9.37
di mm 43.2 42.0 41.11 40.45 40.45
de mm 36.73 35.8 34.97 34.4 34.4
Fegr 1.0 1.0 1.37 1.37 1.37
dbr mm 54.56 53.05 51.94 51.09 51.09
lbr mm 19.62 19.10 18.70 18.39 18.39
dbm mm 63.65 61.89 60.59 59.61 59.61
lbm mm 22.2 21.66 21.21 20.86 20.86
ivo deg 340. 340. 340. 340. 340.
ivc deg 612. 612. 612. 612. 612.
evo deg 110. 110. 110. 110. 110.
evc deg 390. 390. 390. 390. 390.
ilift mm 10.6 10.6 10.6 10.6 10.6
elift mm 10.6 10.6 10.6 10.6 10.6
Li cm 31. 31. 41.4 38.31 38.31
Di1 cm 4.7 4.7 5.97 5.75 5.75
Di2 cm 3.45 3.45 3.81 3.68 3.68
MPGm-h mi/g 25.46 27.49 27.62 28.23
NOxepa gm/ 0.207 .2029 0.171 0.173
τ sec 10.288 11.006 10.362 10.99
τ sec 1.69 1.619 1.616 1.697
S0-4 ft 92.58 92.94 93.28 90.05
α % 47.2 47.2 47.2 47.2
Vc mph 79.8 79.3 79.8 75.5
Ko rpm/ 238.3 324.5 324.5 324.5
Ro 2.90 3.48 3.48 3.48
Nstall rpm 2074 2721 2728 2655
Te(Nstall ft-lb 166.4 153.1 155.9 147.1 147.1
Npp rpm 5150 5500 5250 5300 5300
Power/l hp/li 47.44 49.31 49.31 50.17 50.17
Power hp 151.1 144.3 144.3 139.7 139.7