公开(公告)号：US20060042232A1

公开(公告)日：2006-03-02

申请号：US10918581

申请日：2004-08-13

申请人： Stephen Fulcher ,  Richard Jess ,  Patrick Risse ,  Stuart Smith ,  James Eng

发明人： Stephen Fulcher ,  Richard Jess ,  Patrick Risse ,  Stuart Smith ,  James Eng

IPC分类号： F01N3/00

CPC分类号： F02D21/10

摘要： An engine control system and method maintains an optimum exhaust fuel to air ratio in an internal combustion engine. A secondary air injection (SAI) pressure is measured in an SAI system. The SAI pressure measurement is converted into an SAI flow value. A fuel compensation value is obtained based on the SAI flow value. Fuel delivery is compensated to the engine based on the fuel compensation value. In a second embodiment, the fuel compensation value is obtained based on the SAI pressure measurement. Fuel delivery is compensated to the engine based on the fuel compensation value. In a third embodiment, a primary flow value is calculated at an air intake of the engine. A fuel compensation value is calculated based on the SAI flow and primary flow values. Fuel delivery to the engine is compensated based on the fuel compensation value.

摘要翻译： 发动机控制系统和方法在内燃机中保持最佳排气燃料与空气的比例。 在SAI系统中测量二次空气喷射（SAI）压力。 将SAI压力测量值转换为SAI流量值。 基于SAI流量值获得燃料补偿值。 基于燃料补偿值对发动机进行燃料补给。 在第二实施例中，基于SAI压力测量获得燃料补偿值。 基于燃料补偿值对发动机进行燃料补给。 在第三实施例中，在发动机的进气口处计算主流量值。 基于SAI流量和主流量值计算燃料补偿值。 基于燃料补偿值来补偿向发动机的输送。

公开(公告)号：US06650506B1

公开(公告)日：2003-11-18

申请号：US09464291

申请日：1999-12-15

申请人： Patrick Risse

发明人： Patrick Risse

IPC分类号： G11B555

CPC分类号： G11B5/4853 ,  G11B5/4886 ,  G11B2005/0016

摘要： A magnetic data recording system and apparatus providing the flexibility of using a magnetoresistive read/write head in other than its standard orientation. The invention includes a plurality of magnetic recording disks supported on a spindle rotated by a motor. A plurality of arms, each mounted to a common actuator for arcuate motion, support at their distal ends the magnetoresistive read/write heads. The arms suspend the heads in close proximity to upper and lower surfaces of the disks so that the heads may record signals thereto and read signals therefrom. Generally such systems comprise two sets of such heads, a set of up-heads designed for facing upward to read the bottom surface of a disk and another set of down-heads designed to face downward to read an upper surface of a disk. The present invention provides circuitry allowing the up heads to be used in a downward direction and conversely allows a down head to be used in an upward direction, thereby eliminating the need to manufacture and store an equal number of two different configurations of heads.

摘要翻译： 一种磁数据记录系统和装置，提供除了其标准取向之外使用磁阻读/写头的灵活性。 本发明包括多个支撑在由马达旋转的主轴上的磁记录盘。 每个安装到用于弓形运动的公共致动器的多个臂在其远端处支撑磁阻读/写头。 手臂将磁头悬挂在磁盘的上表面和下表面附近，使得磁头可以向其记录信号并从中读取信号。 通常，这样的系统包括两组这样的头，一组设计用于面向上以读取盘的底面的向上头部，另一组设计成向下面朝下以读取盘的上表面的向下头部。 本发明提供允许向上的方向使用上升的电路，相反允许向下的方向使用向下的头部，从而不再需要制造和存储相同数量的两种不同的头部结构。