在pac tire中有个关于use mode的设置。下表中是各状态对应的输出。
其中11-14 transient，表示线性的瞬态模型，分析到8Hz；21-24 advanced transient，表示非线性的瞬态模型，分析到15Hz
|
USE_MODE |
State |
Slip conditions |
PAC2002 output |
|
0 |
Steady state |
Acts as a vertical spring & damper |
0, 0, Fz, 0, 0, 0 |
|
1 |
Steady state |
Pure longitudinal slip |
Fx, 0, Fz, 0, My, 0 |
|
2 |
Steady state |
Pure lateral (cornering) slip |
0, Fy, Fz, Mx, 0, Mz |
|
3 |
Steady state |
Longitudinal and lateral (not combined) |
Fx, Fy, Fz, Mx, My, Mz |
|
4 |
Steady state |
Combined slip |
Fx, Fy, Fz, Mx, My, Mz |
|
11 |
Transient |
Pure longitudinal slip |
Fx, 0, Fz, 0, My, 0 |
|
12 |
Transient |
Pure lateral (cornering) slip |
0, Fy, Fz, Mx, 0, Mz |
|
13 |
Transient |
Longitudinal and lateral (not combined) |
Fx, Fy, Fz, Mx, My, Mz |
|
14 |
Transient |
Combined slip |
Fx, Fy, Fz, Mx, My, Mz |
|
15 |
Transient |
Combined slip and turn-slip |
Fx, Fy, Fz, Mx, My, Mz |
|
21 |
Advanced transient |
Pure longitudinal slip |
Fx, 0, Fz, My, 0 |
|
22 |
Advanced transient |
Pure lateral (cornering slip) |
0, Fy, Fz, Mx, 0, Mz |
|
23 |
Advanced transient |
Longitudinal and lateral (not combined) |
Fx, Fy, Fz, Mx, My, Mz |
|
24 |
Advanced transient |
Combined slip |
Fx, Fy, Fz, Mx, My, Mz |
|
25 |
Advanced transient |
Combined slip and turn-slip/parking |
Fx, Fy, Fz, Mx, My, Mz |
参考：ADM 742 S2 tire modeling important aspects
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