Decomposition Analysis of an Automotive Powertrain Design ...

Impeller
Driving
Table B.4: Base torque converter characteristics.
Turbine
Driving
Rs Tr K Rs Tr K
rpm/(ft-lb) -1/2 rpm/(ft-lb) -1/2
0 2.900 238.3 1.001 1.1 50400
0.098 2.678 238.8 1.055 1.1 688.8
0.196 2.455 240.5 1.070 1.1 644.7
0.289 2.244 243.8 1.111 1.1 573.7
0.379 2.040 247.7 1.176 1.1 506
0.465 1.845 253.9 1.294 1.1 445.8
0.500 1.765 256.8 1.544 1.1 398.6
0.543 1.667 260.5 2.094 1.1 360.6
0.612 1.511 268.3 3.816 1.1 328.6
0.676 1.365 278.2
0.730 1.243 289.4
0.777 1.136 303.0
0.815 1.050 318.1
0.834 1.007 325.3
0.848 1.000 333.1
0.889 0.990 370.5
0.917 0.990 409.7
0.935 0.990 452.7
0.946 0.990 496.8
0.955 0.990 603.2
0.958 0.990 671.9
0.965 0.990 770.3
0.974 0.990 934.8
0.987 0.990 1304.5
0.995 0.990 1830.4
0.996 0.990 7200
0.997 0.990 50400
Table B.5: Specific valvetrain friction.
Engine Speed Specific friction -kPa
499 7.653
1000 6.343
1500 5.585
2500 4.964
3000 4.413
3500 3.861
4500 3.172
5500 2.758
6500 2.344