Browse Prior Art Database

Field Service Monitor

IP.com Disclosure Number: IPCOM000061282D
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 2 page(s) / 63K

Publishing Venue

IBM

Related People

Balliet, L: AUTHOR [+4]

Abstract

This article describes a field service monitor which provides a method of selectively capturing, analyzing and storing serial data from control modules to help resolve vehicle intermittent problems under dynamic driving conditions. The effectiveness of automotive servicing has been diminished due to rapidly increasing application and complexity of electronics in automotive engine control functions.

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Field Service Monitor

This article describes a field service monitor which provides a method of selectively capturing, analyzing and storing serial data from control modules to help resolve vehicle intermittent problems under dynamic driving conditions. The effectiveness of automotive servicing has been diminished due to rapidly increasing application and complexity of electronics in automotive engine control functions.

These electronics are required in order to meet Federal Motor Vehicle fuel economy and emissions standards. In order for a service technician to properly diagnose vehicle problems, he needs information that will help to identify faulty components. In specific instances, faults are intermittent and/or occur only under dynamic driving conditions. These are not detectable in service bays and are not permanently logged by the electronics in the car. The technique disclosed herein addresses intermittent engine control malfunctions and driveability problems by providing information to the technician that cannot be obtained in the service bay from the car alone. The field service monitor (FSM) consists of a module which plugs into the assembly line test connector and a remote cigarette lighter plug. The module contains a momentary push button for triggering electronics circuitry. The plug also has a status light that indicates that the FSM is operational and if the memory is full or not. The FSM is a small compact microprocessor based module that contains elements to enhance utilization. In the drawing, a specific embodiment is shown in block diagram and illustrates...