Research Article

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.

dfSSMSF valueSignificance F

(a)
Regression13.87313.873133.390.0044
Residual40.30400.1013
Total54.1771

Model no.Form of equationEquation constantsMultiple RR squareAdjusted R squareStand. error value

(b)
10.593−0.2680.9610.9270.9030.3180.008
20.006−8.8840.9240.8540.8050.4510.025
388.312−1.8530.9990.9980.9980.0472.705E − 05
40.009−1.8570.9990.9980.9970.0492.999E − 05
50.002−1.8570.9990.9980.9970.0492.999E − 05
61.004; −0.0056.0790.9710.9420.8850.3460.542
7−0.077; 99.073−2.0390.9990.9990.9990.0380.005
8−0.076; 0.011−2.0410.9990.9990.9980.0410.006
9−0.076; 0.002−2.0410.9990.9990.9980.0410.006

Note.  =  means tire wear; i = model number and j = effect of wheel front total toe-in angle on tire wear.