公开(公告)号：US4594789A

公开(公告)日：1986-06-17

申请号：US725759

申请日：1985-04-22

申请人： Joseph A. Marino ,  Peter A. Puetz ,  Michael J. Kling ,  Curtis A. Finn ,  John C. Pendell ,  Michael C. Crawford

发明人： Joseph A. Marino ,  Peter A. Puetz ,  Michael J. Kling ,  Curtis A. Finn ,  John C. Pendell ,  Michael C. Crawford

IPC分类号： G01B11/275

CPC分类号： G01B11/2755 ,  G01B2210/283

摘要： A wheel alignment system uses head units attached to each of the four wheels. The front head units contain photodetector arrays which view across the front of the vehicle and to the rear. The rear units carry photodetector arrays which look forward. Each photodetector array views a target on one of the other head units. A microcomputer in each head unit determines an angular value based upon the position of the target image on the photodetector array. The angle values determined by the microcomputers of the individual head units are supplied to a master computer in a main console which determines individual toe angles with respect to a tread centerline for either the front two wheels or for all four wheels. The master computer controls a display at the main console, as well as a remote display to guide the mechanic in making alignment adjustments.

摘要翻译： 轮对准系统使用附接到四个轮中的每一个的头单元。 前头单元包含光电检测器阵列，其观察车辆前方和后方。 后面的单元携带着望远镜的光电探测器阵列。 每个光电检测器阵列在另一个头单元中的一个上观察目标。 每个头单元中的微计算机基于光电检测器阵列上的目标图像的位置来确定角度值。 由各个头部单元的微型计算机确定的角度值被提供给主控制台中的主计算机，该主控制器相对于前两个车轮或所有四个车轮的胎面中心线确定个体脚趾角度。 主计算机控制主控制台上的显示器以及远程显示器，以指导技工进行对齐调整。

公开(公告)号：US5018853A

公开(公告)日：1991-05-28

申请号：US533133

申请日：1990-06-04

申请人： Dennis L. Hechel ,  Raymond H. Niemetschek ,  Tobin Slocum ,  Gary R. Kercheck ,  Michael C. Crawford

发明人： Dennis L. Hechel ,  Raymond H. Niemetschek ,  Tobin Slocum ,  Gary R. Kercheck ,  Michael C. Crawford

IPC分类号： G01B11/275 ,  G01M17/007 ,  G06T1/00

CPC分类号： G01B11/2755 ,  G01B2210/26 ,  G01B2210/283

摘要： An automotive vehicle wheel alignment system uses a light source and a linear CCD to measure angles. A mask having a slit through which light from the light source is projected onto the surface of the linear CCD is interposed between the light source and the linear CCD. A microprocessor controls the light source and the linear CCD and uses an output from the linear CCD to calculate an angle between the light source and the linear CCD. The microprocessor uses a search algorithm to locate the center of the image projected on the linear CCD. Calibration data for the linear CCD is stored in an EEPROM.