公开(公告)号：US09776657B1

公开(公告)日：2017-10-03

申请号：US15228069

申请日：2016-08-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ibrahim A. Badiru ,  John T. Zuzelski ,  Scott R. Kloess

IPC: B62D5/04 ,  B62D6/00 ,  B62D6/10 ,  G07C5/08 ,  G01M17/06

CPC classification number: B62D5/0481 ,  B62D6/006 ,  B62D6/10 ,  G01M17/06 ,  G07C5/0808 ,  G07C5/0816

Abstract: In one embodiment, a method for steering system integrity testing includes positioning the vehicle with the second traction wheel within a first constraint; applying mechanical load to the first traction wheel; receiving data corresponding to a steering system operating condition; positioning the vehicle with the first traction wheel within a second constraint; applying mechanical load to the second traction wheel; receiving data corresponding to a steering system operating condition; positioning the vehicle with the first and second traction wheels on respective first and second friction surfaces; applying mechanical load to the first and second traction wheels; receiving data corresponding to a steering system operating condition; transmitting the data to a processor; and determining, via the processor, a health status of the steering system based on the data.

公开(公告)号：US20140277893A1

公开(公告)日：2014-09-18

申请号：US13826122

申请日：2013-03-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kenneth L. Rosol ,  David M. Sidlosky ,  Robert W. Leschuk ,  Scott R. Kloess ,  John T. Zuzelski ,  Eric L. Raphael ,  Yat-Chung Tang ,  Stephen Pastor

IPC: B62D6/00

CPC classification number: B62D6/00 ,  B60W10/20 ,  B62D1/28 ,  B62D1/286 ,  B62D5/003 ,  B62D5/30 ,  B62D7/148 ,  B62D7/159

Abstract: A steering system for an autonomously driven vehicle and methods of steering the vehicle are disclosed. A main controller signals a secondary steering assembly to operate in a first phase when a power steering controller is in a first mode and a second phase to steer the vehicle when the power steering controller is in a second mode. The main controller signals a friction device to actuate to a disengaged position when the power steering controller is in the first mode and the secondary steering assembly is in the first phase, and to signal the friction device to actuate to an engaged position to secure a steering wheel in an initial position when the power steering controller is in the second mode and the secondary steering assembly is in the second phase to allow the secondary steering assembly to steer the vehicle.

Abstract translation: 公开了一种用于自主驾驶车辆的转向系统和转向车辆的方法。 当动力转向控制器处于第一模式时，主控制器指示次级转向组件在第一阶段中操作，而当动力转向控制器处于第二模式时，主控制器指示第二阶段来转向车辆。 当动力转向控制器处于第一模式并且次级转向组件处于第一阶段时，主控制器用信号通知摩擦装置致动到脱离位置，并且向摩擦装置发出信号以致动到接合位置以固定转向 当动力转向控制器处于第二模式并且次级转向组件处于第二阶段以允许辅助转向组件转向车辆时，车轮处于初始位置。