MotionView User's Guide

Tractive Force Steer and Windup

Tractive Force Steer and Windup

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Tractive Force Steer and Windup

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Branch ID: 250

Request Number: 50000250

Description: Tractive Force Steer and Windup

Component

Unit

Comment

1 (X): Left Tractive Force Steer

deg/g

The left wheel change in steer angle induced by vehicle acceleration.  See acceleration lift/squat above for calculation of intermediate terms.

Orientation A:

Live Axles

tfs = rtod*weight*(C(6,3)*aczleft+C(6,9)*aczright+ acx*(C(6,1)-slr*C(6,5))+acx*(C(6,7)-slr*C(6,11)))

Fixed Differentials

tfs = rtod*weight*(C(6,3)*aczleft+C(6,9)*aczright+acx*C(6,1)+acx*C(6,7))

Orientation B:

Live Axles

tfs = rtod*weight*(C(6,3)*aczleft+C(6,9)*aczright+ acx*(-C(6,1)+slr*C(6,5))+
acx*(-C(6,7)+slr*C(6,11)))

Fixed Differentials

tfs = rtod*weight*(C(6,3)*aczleft+C(6,9)*aczright-acx*C(6,1)-acx*C(6,7))

2 (Y): Right Tractive Force Steer

deg/g

The right wheel change in steer angle induced by vehicle acceleration.  See acceleration lift/squat above for calculation of intermediate terms.

Orientation A:

Live Axles

tfs = rtod*weight*(C(12,3)*aczleft+C(12,9)*aczright+
acx*(C(12,1)- slr*C(12,5))+acx*(C(12,7)-slr*C(12,11)))

Fixed Differentials

tfs = rtod*weight*(C(12,3)*aczleft+C(12,9)*aczright+acx*C(12,1)+acx*C(12,7))

Orientation B:

Live Axles

tfs = rtod*weight*(C(12,3)*aczleft+C(12,9)*aczright+ acx*(-C(12,1)+slr*C(12,5))+
acx*(-C(12,7)+slr*C(12,11)))

Fixed Differentials

tfs = rtod*weight*(C(12,3)*aczleft+C(12,9)*aczright-acx*C(12,1)-acx*C(12,7))

3 (Z):  Average Tractive Force Steer

deg/g

The mean of components 1 and 2.

4 (RX): Left Tractive Force Windup

deg/g

The left wheel change in caster angle induced by vehicle acceleration.  See acceleration lift/squat above for calculation of intermediate terms.

Orientation A:

Live Axles

tfs = rtod*weight*(C(5,3)*aczleft+C(5,9)*aczright+ acx*(C(5,1)-slr*C(5,5))+
acx*(C(5,7)-slr*C(5,11)))

Fixed Differentials

tfs = rtod*weight*(C(5,3)*aczleft+C(5,9)*aczright+acx*C(5,1)+acx*C(5,7))

Orientation B:

Live Axles

tfs = rtod*weight*(-C(5,3)*aczleft-C(5,9)*aczright+ acx*(C(5,1)-slr*C(5,5))+
acx*(C(5,7)-slr*C(5,11)))

Fixed Differentials

tfs = rtod*weight*(-C(5,3)*aczleft-C(5,9)*aczright+acx*C(5,1)+acx*C(5,7))

5 (RY): Right Tractive Force Windup

deg/g

The right wheel change in caster angle induced by vehicle acceleration.  See acceleration lift/squat above for calculation of intermediate terms.

Orientation A:

Live Axles

tfs = rtod*weight*(C(11,3)*aczleft+C(11,9)*aczright+
acx*(C(11,1)-slr*C(11,5))+acx*(C(11,7)-slr*C(11,11)))

Fixed Differentials

tfs = rtod*weight*(C(11,3)*aczleft+C(11,9)*aczright+acx*C(11,1)+acx*C(11,7))

Orientation B:

Live Axles

tfs = rtod*weight*(-C(11,3)*aczleft-C(11,9)*aczright+
acx*(C(11,1)-slr*C(11,5))+acx*(C(11,7)-slr*C(11,11)))

Fixed Differentials

tfs = rtod*weight*(-C(11,3)*aczleft-C(11,9)*aczright+acx*C(11,1)+acx*C(11,7))

6 (RZ):  Average Tractive Force Windup

deg/g

The mean of components 4 and 5.

 

See Also:

List of SDF Parameter Definitions