EPHS是EPS的过渡产品 作为常规的液压动力转向系统（Hydraulic Power Steering，HPS）的升级产品，电液助力转向系统已经在轿车上得到相当普遍的应用。
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介绍了一种用于拖拉机自动驾驶的电控液压动力转向系统。
An electronic hydraulic power steering system for automatic operating of tractor is introduced in this paper.
该模型在普通转向器模型的基础上考虑了转向齿轮、齿条等构件的变形和液压特性对系统动力学特性的影响。
This model takes the effect of the steering gear and rack's deformation and the dynamic characteristic of hydraulic system into account on the basis of common steering system.
为了实现燃料电池电动客车的动力转向功能，提出了直流电机通过联轴机构直接驱动油泵的电动液压式动力转向系统。
In order to achieve power steering function in fuel cell bus, an electrohydraulic system is proposed, where the pump is directly driven by a DC motor through an axis coupler.
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