Based on introducing the structure and work principle of vehicle EPS, a dynamic mathematical model was established.
在阐述车辆电动助力转向系统结构与工作原理的基础上，建立其动态数学模型。
Based on the gas flowing equation, each unit dynamic mathematical model was established using linearization and Laplace transform.
根据气体流动方程，通过线性化和拉氏变换，建立各单元的动态数学模型。
Based on multi-parameter, multi-objective and multi-constraint of helical gear reducer, the optimization mathematical model was established.
针对斜齿轮减速器优化设计的多参数、多目标、多约束特点，建立了多目标优化数学模型；
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