公开(公告)号：US20160101782A1

公开(公告)日：2016-04-14

申请号：US14510862

申请日：2014-10-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： YOUSSEF A. GHONEIM ,  QINGRONG ZHAO ,  QI ZHANG ,  BAKHTIAR B. LITKOUHI ,  YINGMEI SI ,  DAVID M. SIDLOSKY ,  VALARIE V. BOATMAN ,  SAMI AHMED

IPC: B60W40/06

CPC classification number: B60W40/068 ,  B60W2520/10 ,  B60W2520/125 ,  B60W2520/14 ,  B60W2520/20 ,  B60W2540/18

Abstract: Methods and systems for determining road surface information in a vehicle. In one embodiment, the method includes: determining at least one condition assessment value based on steering data; determining a feature set to include at least one of self-aligning torque (SAT), slip angle, SAT variance, steering rate, and lateral acceleration based on the condition assessment value; processing steering data obtained during a steering maneuver and associated with the feature set using a pattern classification technique; and determining a surface type based on the processing.

Abstract translation: 用于确定车辆中路面信息的方法和系统。 在一个实施例中，该方法包括：基于转向数据确定至少一个条件评估值; 基于条件评估值确定特征集合以包括自对准转矩（SAT），滑移角，SAT方差，转向速率和横向加速度中的至少一个; 使用模式分类技术处理在转向操纵期间获得并与特征集相关联的转向数据; 以及基于所述处理来确定表面类型。