公开(公告)号：US20090204343A1

公开(公告)日：2009-08-13

申请号：US12029482

申请日：2008-02-12

申请人： Charles J. Lemont, JR. ,  Jose M. Lopez ,  David C. Pomerville ,  Scott R. Kloess ,  Robert S. Brines ,  Marc J. Tahnoose ,  Darrin S. Mallard

发明人： Charles J. Lemont, JR. ,  Jose M. Lopez ,  David C. Pomerville ,  Scott R. Kloess ,  Robert S. Brines ,  Marc J. Tahnoose ,  Darrin S. Mallard

IPC分类号： G06F17/18 ,  G01H17/00

CPC分类号： G01M7/027

摘要： A method of determining steering rack rattle propensity of a rack and pinion steering assembly may comprise: simultaneously recording audio, and measuring acceleration of a rack, and right and left side tie-rod end loads; identifying rack rattle events from the audio recording; determining common characteristics of the measured rack acceleration and tie-rod end loads during the identified rack rattle events; creating a rack rattle index level; applying a predetermined force profile to a test rack and pinion steering assembly; measuring a test acceleration on the test rack and pinion steering assembly; calculating a test RMS level in a test frequency range using a test time constant; determining a rack rattle index value from the calculated test RMS level; and comparing the rack rattle index value to the rack rattle index level.

摘要翻译： 确定齿条和小齿轮转向组件的转向齿条倾斜倾向的方法可以包括：同时记录音频，测量齿条的加速度以及左右侧拉杆端部载荷; 从音频录制中识别机架拨轮事件; 确定在所识别的机架拨轮事件期间测量的机架加速度和拉杆端部负载的共同特征; 创建机架拨号指数级别; 将预定的力轮廓施加到测试齿条和小齿轮转向组件; 测量齿条和小齿轮转向组件上的测试加速度; 使用测试时间常数在测试频率范围内计算测试RMS电平; 从计算的测试RMS水平确定机架拨浪指数值; 并将机架拨号器索引值与机架拨号器索引级别进行比较。

公开(公告)号：US07742899B2

公开(公告)日：2010-06-22

申请号：US12029482

申请日：2008-02-12

申请人： Charles J. Lemont, Jr. ,  Jose M. Lopez ,  David C. Pomerville ,  Scott R. Kloess ,  Robert S. Brines ,  Marc J. Tahnoose ,  Darrin S. Mallard

发明人： Charles J. Lemont, Jr. ,  Jose M. Lopez ,  David C. Pomerville ,  Scott R. Kloess ,  Robert S. Brines ,  Marc J. Tahnoose ,  Darrin S. Mallard

IPC分类号： G06F11/30 ,  B62D5/04 ,  B62D5/06

CPC分类号： G01M7/027

摘要： A method of determining steering rack rattle propensity of a rack and pinion steering assembly may comprise: simultaneously recording audio, and measuring acceleration of a rack, and right and left side tie-rod end loads; identifying rack rattle events from the audio recording; determining common characteristics of the measured rack acceleration and tie-rod end loads during the identified rack rattle events; creating a rack rattle index level; applying a predetermined force profile to a test rack and pinion steering assembly; measuring a test acceleration on the test rack and pinion steering assembly; calculating a test RMS level in a test frequency range using a test time constant; determining a rack rattle index value from the calculated test RMS level; and comparing the rack rattle index value to the rack rattle index level.

摘要翻译： 确定齿条和小齿轮转向组件的转向齿条倾斜倾向的方法可以包括：同时记录音频，测量齿条的加速度以及左右侧拉杆端部载荷; 从音频录制中识别机架拨轮事件; 确定在所识别的机架拨轮事件期间测量的机架加速度和拉杆端部负载的共同特征; 创建机架拨号指数级别; 将预定的力轮廓施加到测试齿条和小齿轮转向组件; 测量齿条和小齿轮转向组件上的测试加速度; 使用测试时间常数在测试频率范围内计算测试RMS电平; 从计算的测试RMS水平确定机架拨浪指数值; 并将机架拨号器索引值与机架拨号器索引级别进行比较。

公开(公告)号：US07487984B1

公开(公告)日：2009-02-10

申请号：US11865264

申请日：2007-10-01

申请人： Charles J. Lemont, Jr. ,  Jose M. Lopez ,  William C. Gregory ,  Robert S. Brines ,  Scott R. Kloess ,  Charu S. Hayes ,  Darrin S. Mallard ,  Terry R. Peterson ,  David C. Pomerville

发明人： Charles J. Lemont, Jr. ,  Jose M. Lopez ,  William C. Gregory ,  Robert S. Brines ,  Scott R. Kloess ,  Charu S. Hayes ,  Darrin S. Mallard ,  Terry R. Peterson ,  David C. Pomerville

IPC分类号： B62D3/12 ,  F16H1/04

CPC分类号： B62D3/123 ,  F16H55/283 ,  Y10T74/19623 ,  Y10T74/1967

摘要： A wear compensator for use in a vehicle rack and pinion steering assembly and a method of biasing a rack against a pinion shaft gear in a rack and pinion steering assembly are disclosed. The wear compensator may include a rack follower, an adjuster plug, a wear cam and a torsion spring. The rack follower slides on the rack. The adjuster plug is retained by the steering gear housing and includes a plug cam surface. The wear cam includes a wear cam surface operatively engaging the plug cam surface, is mounted between the rack follower and the adjuster plug, and can rotate relative to the adjuster plug. The torsion spring connects between the adjuster plug and the wear cam in order to rotatably bias the wear cam relative to the adjuster plug.

摘要翻译： 公开了一种用于车辆齿条和小齿轮转向组件的磨损补偿器以及将齿条抵靠齿条和小齿轮转向组件中的小齿轮轴齿轮的方法。 磨损补偿器可以包括机架从动件，调节器塞，磨损凸轮和扭转弹簧。 机架跟随器在机架上滑动。 调节器塞由转向齿轮箱保持并且包括插头凸轮表面。 磨损凸轮包括可操作地接合插头凸轮表面的磨损凸轮表面，安装在齿条从动件和调节器塞之间，并且可相对于调节塞旋转。 扭力弹簧连接在调节塞和磨损凸轮之间，以便相对于调节塞可旋转地偏置磨损凸轮。