Effects of Front Total Toe-In Angle on Tire Wear and Emissions for a Light-Duty Vehicle
Table 3
(a) ANOVA for tire wear in terms of wheel front total toe-in angle. (b) Regression analysis for the effect of wheel front total toe-in angle on tire wear.
df
SS
MS
F value
Significance F
(a)
Regression
1
3.8731
3.8731
33.39
0.0044
Residual
4
0.3040
0.1013
Total
5
4.1771
Model no.
Form of equation
Equation constants
Multiple R
R square
Adjusted R square
Stand. error
value
(b)
1
0.593
−0.268
0.961
0.927
0.903
0.318
0.008
2
0.006
−8.884
0.924
0.854
0.805
0.451
0.025
3
88.312
−1.853
0.999
0.998
0.998
0.047
2.705E − 05
4
0.009
−1.857
0.999
0.998
0.997
0.049
2.999E − 05
5
0.002
−1.857
0.999
0.998
0.997
0.049
2.999E − 05
6
1.004; −0.005
6.079
0.971
0.942
0.885
0.346
0.542
7
−0.077; 99.073
−2.039
0.999
0.999
0.999
0.038
0.005
8
−0.076; 0.011
−2.041
0.999
0.999
0.998
0.041
0.006
9
−0.076; 0.002
−2.041
0.999
0.999
0.998
0.041
0.006
Note. = means tire wear; i = model number and j = effect of wheel front total toe-in angle on tire wear.