公开(公告)号：US20140346980A1

公开(公告)日：2014-11-27

申请号：US13898682

申请日：2013-05-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Avshalom Suissa ,  Armin Beiss

IPC: G01B7/00 ,  H02P25/06

CPC classification number: G01B7/003

Abstract: A system for estimating a position associated with a pre-tensioned active material without using a position sensor. The system includes an active material being transformable between a first state and a second state in response to a pre-determined stimulus and pre-tensioned to at least a pre-determined threshold, yielding the pre-tensioned active material. The system also includes a processing unit configured to perform various operations. The operations include obtaining a value for electrical resistance of the pre-tensioned active material. The operations also include estimating, using the electrical resistance determined, the position associated with the pre-tensioned active material.

Abstract translation: 一种用于在不使用位置传感器的情况下估计与预张紧的活性材料相关联的位置的系统。 该系统包括活性材料，其可响应于预先确定的刺激而在第一状态和第二状态之间变形，并且预张紧至至少预定的阈值，产生预张紧的活性材料。 该系统还包括被配置为执行各种操作的处理单元。 这些操作包括获得预拉伸活性材料的电阻值。 操作还包括使用确定的电阻来估计与预张紧的活性材料相关联的位置。