公开(公告)号：US08515575B2

公开(公告)日：2013-08-20

申请号：US12839031

申请日：2010-07-19

申请人： Jeffrey Pfeiffer

发明人： Jeffrey Pfeiffer

IPC分类号： G06F17/00

CPC分类号： G06Q10/08

摘要： A mobile fulfillment device, system, and method for retrieving at least one article stored in one of a plurality of predetermined storage locations are disclosed. The device, system and method includes a wireless transceiver for communicating with a remote system controller, including transmission of at least one instruction from the remote system controller to provide instruction to the control system, a retriever for retrieving the at least one article in response to instruction received from the control system, a sensor for detecting inventory levels of articles in at least one predetermined storage location, a mobile frame supporting the fulfillment device and at least three wheels coupled to the mobile frame and providing mobility to the fulfillment device based on at least one of the at least three wheels being a lockable wheel.

摘要翻译： 公开了用于检索存储在多个预定存储位置之一中的至少一个物品的移动执行装置，系统和方法。 所述设备，系统和方法包括用于与远程系统控制器进行通信的无线收发器，包括从所述远程系统控制器发送至少一条指令以向所述控制系统提供指令，用于响应于所述远程系统控制器检索所述至少一个物品的检索器 从控制系统接收的指令，用于检测至少一个预定存储位置中的物品的库存水平的传感器，支持履行装置的移动框架以及耦合到移动框架的至少三个轮子，并且基于at 所述至少三个轮中的至少一个是可锁定的轮。

公开(公告)号：US20050061271A1

公开(公告)日：2005-03-24

申请号：US10668756

申请日：2003-09-23

申请人： Jeffrey Pfeiffer ,  Gregg Stepien ,  Amanpal Grewal

发明人： Jeffrey Pfeiffer ,  Gregg Stepien ,  Amanpal Grewal

IPC分类号： F01L1/34

CPC分类号： F01L1/34 ,  F01L2800/00 ,  F01L2800/01 ,  F01L2820/041 ,  Y10T74/2102

摘要： A method of determining the position of a cam phaser determines and stores an adaptively updated base offset corresponding to the phase offset of a camshaft relative to a crankshaft for a reference or default position of a cam phaser. Thereafter, the phaser position is determined relative to the base offset. Individual base offsets are preferably determined for each tooth of a toothed cam wheel, and stored in a non-volatile memory device. During engine operation, the base offsets are subject to diagnostic testing and adaptive updating, and the updated base offsets are stored in the non-volatile memory at engine shut-down.

摘要翻译： 确定凸轮相位器的位置的方法确定并存储与凸轮轴相对于曲轴的相位偏移相对应的自适应更新的基本偏移，用于凸轮相位器的基准或默认位置。 此后，相对于基本偏移确定相位器位置。 优选地，针对齿形凸轮的每个齿确定单独的基座偏移，并且存储在非易失性存储装置中。 在发动机运行期间，基座偏移量进行诊断测试和自适应更新，并且更新的基准偏移量在发动机停机时存储在非易失性存储器中。

公开(公告)号：US20070185640A1

公开(公告)日：2007-08-09

申请号：US10668384

申请日：2003-09-23

申请人： Jeffrey Pfeiffer ,  Amanpal Grewal ,  Daniel McKay

发明人： Jeffrey Pfeiffer ,  Amanpal Grewal ,  Daniel McKay

IPC分类号： G06G7/70

CPC分类号： F01L1/344 ,  F01L2201/00 ,  F01L2800/00 ,  F02D35/0007 ,  F02D2041/001 ,  F02D2041/1409 ,  F02D2041/1422

摘要： A closed-loop control for a cam phase adjustment mechanism includes gain terms that are adaptively adjusted to optimize the rate of response of the control to changes in the desired cam phase. The rate of response of the cam phase adjustment mechanism is sampled under specified operating conditions or during certain repeated engine events that involve a change in the desired cam phase, and the deviation of the measured rate of response from the nominal rate of response is determined and used to adjust the closed-loop control gains for restoring the nominal response.

摘要翻译： 用于凸轮相位调节机构的闭环控制包括被自适应地调整以使控制对所需凸轮相位变化的响应速率最优化的增益项。 凸轮相位调整机构的响应速率在规定的运行条件下或在涉及所需凸轮相位变化的某些重复发动机事件期间进行采样，并且确定测量的响应速率与标称响应速率的偏差， 用于调整闭环控制增益以恢复标称响应。