【源码】车辆纵向行为模型

【源码】车辆纵向行为模型
车辆纵向功能的模拟动画。更多细节请阅读压缩包中的pdf文件。

Features simulation animations.

Read the complementary pdf for more information

给出了3种模型。

3 models are proposed.

-Quarter car model:

Model with 2 degrees of freedom, relative to the vertical displacement $[Z_s]$ of the suspended mass $[m_s]$ , as well as the vertical displacement $[Z_u]$ of the unsprung mass $[m_u]$ .

The stiffness of the suspension is represented as $k_1$ , and its damping as $c_1$ .

The stiffness of the tire-wheel is represented as $k_{w_1}$ , and damping is neglected.

–Half car model:

Model with 4 degrees of freedom, relative to the vertical displacement $[Z_s]$ of the suspended mass $[m_s]$ , the vertical displacements $[Z_{1},Z_{2}]$ of the unsprung masses $[m_{u_{1}},m_{u_{2}}]$ and the rotation of the unsprung mass $\theta$ , positive counterclockwise.

The parameters are defined following the same criteria as the previous case.Except that the suspended mass, which has a rotational movement, has a characteristic inertia $I_{\theta}$ .

–Total car model:

Model with 7 degrees of freedom, relative to the vertical displacement $[Z_s]$ of the suspended mass $[m_s]$ , the vertical displacements $[Z_{1},Z_{2},Z_{3},Z_{4}]$ of the unsprung masses $[m_{u_{1}},m_{u_{2}},m_{u_{4}},m_{u_{4}}]$ and the rotation of the unsprung mass $\phi$ and $\theta$ , positive counterclockwise.

The model has two inertia parameters, relative to pitch $\phi$ , and roll $\alpha$ .

The others parameters are defined following the same criteria as the previous case.\

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