公开(公告)号：US06988581B2

公开(公告)日：2006-01-24

申请号：US10712184

申请日：2003-11-13

申请人： Dirk Croughs ,  Andreas Holthoff ,  Peter Kocybik ,  Dale Killins ,  Steve Hung

发明人： Dirk Croughs ,  Andreas Holthoff ,  Peter Kocybik ,  Dale Killins ,  Steve Hung

IPC分类号： B62D5/07

CPC分类号： B62D5/065

摘要： A system and method of controlling flow outlet from a hydraulic pump. The system provides the level of flow required to execute the driver's steering commands. This method of control reduces the average torque requirement of the hydraulic pump thereby improving fuel economy by unloading the vehicle's accessory drive, while also providing the variable assist power steering feature. The Fuel Efficient Power Steering (FEPS) control algorithm is an optimal method of regulating flow by actuating the electronic flow control device in the pump assembly. This electronic flow control device allows an increase in hydraulic fluid flow to the steering gear in order to increase the provided assist and to reduce hydraulic fluid flow to the steering gear to improve fuel economy, if no additional assist is needed. The calculation of the desired flow control device current is primarily based on vehicle speed and steering wheel rate. Some additional input signals such as steering angle or engine rpm could also be used for enhanced functionality.

摘要翻译： 一种从液压泵控制流出口的系统和方法。 系统提供执行驾驶员转向指令所需的流量级别。 这种控制方法降低了液压泵的平均转矩要求，从而通过卸载车辆的附件驱动来提高燃油经济性，同时还提供了可变辅助动力转向特征。 燃油效率动力转向（FEPS）控制算法是通过启动泵组件中的电子流量控制装置来调节流量的最佳方法。 如果不需要额外的辅助装置，则这种电子流量控制装置允许增加到舵机的液压流体流量，以便增加所提供的辅助并且减少液压流体流向舵机以提高燃油经济性。 所需流量控制装置电流的计算主要基于车速和方向盘速率。 一些额外的输入信号，如转向角或发动机转速也可用于增强功能。

公开(公告)号：US20050186094A1

公开(公告)日：2005-08-25

申请号：US10631129

申请日：2003-07-31

申请人： Bryan Youngpeter ,  Dale Killins ,  Stephen Hung ,  Timothy Staton ,  Scott Radabaugh

发明人： Bryan Youngpeter ,  Dale Killins ,  Stephen Hung ,  Timothy Staton ,  Scott Radabaugh

IPC分类号： B62D5/06 ,  F04B17/00 ,  F04B49/00 ,  F04C14/26

CPC分类号： F04C14/26 ,  B62D5/062

摘要： A power steering pump comprises a housing that includes a bore, a fluid discharge port that supplies pumped fluid into the bore, and a fluid bypass port for recycling excess fluid to the pumping elements. A flow control valve is slideably received in the bore and regulate the size of the inlet to the fluid bypass port. The pump includes a solenoid assembly that has a plunger that is operatively connected to the flow control valve. By adjusting the magnitude of the current to the electromagnetic coil of the solenoid assembly, the position of the flow control valve is varied to increase or decrease fluid flow to the fluid bypass port and thereby regulate the output from the pump.

摘要翻译： 动力转向泵包括壳体，其包括孔，将泵送的流体供应到孔中的流体排出口以及用于将多余流体再循环到泵送元件的流体旁路端口。 流量控制阀可滑动地容纳在孔中并调节流体旁路端口的入口的尺寸。 泵包括具有可操作地连接到流量控制阀的柱塞的螺线管组件。 通过调节电磁线圈组件的电磁线圈的电流大小，可以改变流量控制阀的位置，以增加或减少流体流向旁路端口的流体，从而调节泵的输出。