公开(公告)号：US06725992B1

公开(公告)日：2004-04-27

申请号：US10303599

申请日：2002-11-25

申请人： E. David Ray ,  Fredric H. Tubbs

发明人： E. David Ray ,  Fredric H. Tubbs

IPC分类号： F16D27115

CPC分类号： F16D27/115 ,  F16D27/004

摘要： Engagement characteristics of electromagnetic friction clutch pack assemblies disposed in, for example, motor vehicle transfer cases are improved, especially at the transition between static and dynamic friction modes, by superimposing a random noise signal on an otherwise smooth analog or stepped digital signal. The controller and driver for the clutch includes a random noise (signal) generator having an output which is superimposed on the controller output generated in response to signals from various sensors disposed on the vehicle. When the controller inputs cause clutch engagement in accordance with the controller software, an engagement signal comprising both a drive portion and a smaller random noise portion is supplied to the electromagnetic clutch operator. Improved, less perceptible clutch engagement action is thereby achieved.

摘要翻译： 通过将随机噪声信号叠加在其他平滑的模拟或阶梯式数字信号上，特别是在静摩擦模式和动态摩擦模式之间的转换时，改进了设置在例如机动车辆传送箱中的电磁摩擦离合器组件的接合特性。 用于离合器的控制器和驱动器包括随机噪声（信号）发生器，其具有叠加在响应于设置在车辆上的各种传感器的信号而产生的控制器输出上的输出。 当控制器输入根据控制器软件引起离合器接合时，将包括驱动部分和较小随机噪声部分的接合信号提供给电磁离合器操作器。 由此实现了改进的，较不可察觉的离合器接合动作。

公开(公告)号：US07416068B2

公开(公告)日：2008-08-26

申请号：US11259651

申请日：2005-10-26

申请人： E. David Ray ,  Todd L. Perttola

发明人： E. David Ray ,  Todd L. Perttola

IPC分类号： F16D48/06

CPC分类号： B60W30/1888 ,  B60K17/28 ,  B60K23/08 ,  B60K25/06 ,  B60W30/186 ,  B60W2510/0291 ,  Y10T477/753

摘要： Clutch control systems for a power take-off system of a vehicle, such as those employing all-wheel and four-wheel drive systems. The control system calculates the temperature of the clutch system, based on one or more vehicle operational parameters. If the clutch system reaches a pre-determined temperature limit, the control system selectively stops the operation of the clutch system until the clutch temperature drops below the pre-determined temperature limit. The control system includes an electronic control unit, e.g., a computer or microprocessor, that calculates and/or processes one or more vehicle operational parameters, including, but not limited to: (1) clutch input and output speeds; (2) slip across the clutch; (3) clutch torque; (4) current clutch power; (5) accumulated clutch power; (6) temperature delta (i.e., change) of the clutch; and (7) clutch temperature.

摘要翻译： 用于车辆动力输出系统的离合器控制系统，例如采用全轮驱动和四轮驱动系统的离合器控制系统。 控制系统基于一个或多个车辆操作参数来计算离合器系统的温度。 如果离合器系统达到预定的温度极限，则控制系统选择性地停止离合器系统的操作，直到离合器温度降到预定的温度极限以下。 控制系统包括计算和/或处理一个或多个车辆操作参数的电子控制单元，例如计算机或微处理器，包括但不限于：（1）离合器输入和输出速度; （2）滑过离合器; （3）离合器扭矩; （4）当前离合器动力; （5）累积离合器功率; （6）离合器的温度增量（即变化）; 和（7）离合器温度。

公开(公告)号：US07301446B2

公开(公告)日：2007-11-27

申请号：US11125459

申请日：2005-05-10

申请人： E. David Ray ,  Dan Reich ,  Todd Ferguson

发明人： E. David Ray ,  Dan Reich ,  Todd Ferguson

IPC分类号： B60C1/00

CPC分类号： B60C23/061

摘要： A method of detecting the presence of an undersized, e.g., mini-spare, or an underinflated, oversized or overinflated tire or tires on a passenger motor vehicle improves operation of traction control, stability and anti-lock brake systems by compensating for such operating anomalies. The method includes the steps of sensing the steering angle, sensing the actual rotational speeds of each wheel, determining the actual vehicle speed, calculating each expected wheel speed based upon the sensed steering angle and wheel speeds, calculating each tire diameter based upon the calculated wheel speeds and, finally, determining whether such diameters are within various defined ranges which permit normal operation, permit reduced function operation, or require system shut down.

摘要翻译： 检测乘客机动车辆上存在尺寸过小的例如小型备件或未充分膨胀，超尺寸或过度膨胀的轮胎或轮胎的方法通过补偿这种操作异常来改善牵引力控制，稳定性和防抱死制动系统的操作 。 该方法包括以下步骤：感测转向角，感测每个车轮的实际转速，确定实际车速，基于感测到的转向角和车轮速度来计算每个预期车轮速度，基于所计算的车轮计算每个轮胎直径 并且最后确定这样的直径是否在允许正常操作的许多限定范围内，允许减少功能操作或需要系统关闭。

公开(公告)号：US5771477A

公开(公告)日：1998-06-23

申请号：US626055

申请日：1996-05-10

申请人： Dan J. Showalter ,  Richard K. Rader ,  Gary Oliveira ,  E. David Ray

发明人： Dan J. Showalter ,  Richard K. Rader ,  Gary Oliveira ,  E. David Ray

IPC分类号： F16H61/08 ,  B60K17/346 ,  B60K17/35 ,  F16H59/40 ,  F16H59/42 ,  F16H59/46 ,  F16H61/04 ,  F16H37/08

CPC分类号： F16H61/0403 ,  B60K17/3467 ,  B60K17/35 ,  B60K17/3515 ,  F16H59/40 ,  F16H59/42 ,  F16H59/46 ,  Y02T10/84

摘要： A method and apparatus for operating a power transfer device such as a vehicle transfer case having, shaft speed sensors, a two speed (high-low) drive assembly, an electrically, pneumatically or hydraulically operated shift operator and a microprocessor comprising the steps of sensing the speeds of the transfer case input shaft and output shaft, calculating the rate of change (.DELTA.S/.DELTA.t) of the speed of the input shaft, predicting, based upon such rate of change, a time when the input shaft and the output shaft will be synchronized and commencing movement of such shift operator at a time prior to such synchronization in order to effect engagement of such clutch into high gear at substantially the instant of synchronization.

摘要翻译： 一种用于操作诸如车辆传送箱的动力传递装置的方法和装置，具有轴速度传感器，双速（高 - 低）驱动组件，电动，气动或液压操作的换档操作器和微处理器，包括以下步骤：感测 传送箱输入轴和输出轴的速度，计算输入轴速度的变化率（DELTA S / DELTA t），根据这种变化率预测输入轴和输出端的时间 轴将在这种同步之前的时间同步并开始这种换档操作者的移动，以便在基本上同步的时刻使这种离合器进入高档。