公开(公告)号：US09254822B1

公开(公告)日：2016-02-09

申请号：US14519822

申请日：2014-10-21

Applicant: Caterpillar Inc.

Inventor： Paul R. Friend ,  Timothy Evans ,  Qi Chen ,  Andrew T. Whitten ,  Nicholas R. Vogel ,  Hong Chang ,  Salman Chikni ,  Frank A. Willis

IPC: B60T7/12 ,  G01C21/16

CPC classification number: B60T7/12 ,  B60T7/16 ,  G01C21/16

Abstract: A system having a primary inertial measurement unit and a secondary inertial measurement unit configured to generate a primary position signal and a secondary position signal respectively is provided. The system also includes an error detection module communicably coupled to the primary inertial measurement unit and the secondary inertial measurement unit. The error detection module is configured to receive the primary position signal and the secondary position signal and detect if an out-range error is present in at least one of the primary position signal and the secondary position signal. The error detection module is also configured to detect if an in-range error is present in at least one of the primary position signal and the secondary position signal and determine an action to be performed based on the presence of at least one of the out-range error and the in-range error.

Abstract translation: 提供一种具有初级惯性测量单元和被配置成分别产生主位置信号和次级位置信号的次惯性测量单元的系统。 该系统还包括可通信地耦合到主惯性测量单元和次惯性测量单元的错误检测模块。 误差检测模块被配置为接收主位置信号和副位置信号，并且检测在主位置信号和副位置信号中的至少一个中是否存在超范围误差。 误差检测模块还被配置为检测在主要位置信号和次要位置信号中的至少一个中是否存在范围内误差，并且基于存在至少一个外部位置信号来确定要执行的动作， 范围误差和范围内误差。