Invention Grant
US08214101B2 System and method for detecting machine movement and speed sensor failure
有权
用于检测机器运动和速度传感器故障的系统和方法
- Patent Title: System and method for detecting machine movement and speed sensor failure
- Patent Title (中): 用于检测机器运动和速度传感器故障的系统和方法
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Application No.: US12073130Application Date: 2008-02-29
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Publication No.: US08214101B2Publication Date: 2012-07-03
- Inventor: Douglas James Carlton , Corwin Eugene Storer , Bradley John Will , Eric John Schultz
- Applicant: Douglas James Carlton , Corwin Eugene Storer , Bradley John Will , Eric John Schultz
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner LLP
- Main IPC: G01M17/00
- IPC: G01M17/00 ; G07C5/00 ; B60Q1/00

Abstract:
A method for indirectly detecting a movement of a machine and a failure of a speed sensor is disclosed. The method may include receiving an operator input signal, and determining a first factor based on the operator input signal. The method may also include measuring a machine operation parameter, and determining a second factor based on the machine operation parameter. The method may further include identifying a movement of the machine if the first factor is out of a first threshold range and the second factor is out of a second threshold range for at least a first threshold length of time. The method may also include determining a speed sensor failure if the movement of the machine is identified and no speed is detected by the speed sensor for at least a second threshold length of time.
Public/Granted literature
- US20090222162A1 System and method for indirectly detecting machine movement Public/Granted day:2009-09-03
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