USA As Represented by Secretary of the Navy

Kenneth R Galliher

Timothy B Straw

Mark E Carlson

Philip G Danforth

Le Andra Evans

Thomas G Bucko

Robert J White

Richard L Miller

Russell L Brown

Joseph T Lucia

An Electric Vehicle Monitoring System (EVMS) for measuring the performance f an electric vehicle. The preferred embodiment of the system comprises: (1) a variety of sensors for obtaining data on vehicle performance and operating parameters; (2) a digital dashboard display providing the vehicle operator with information on vehicle operating parameters; (3) a data acquisition system for collecting the data from the sensors and converting the data to digital format; and (4) a processing unit in the form of a removable, portable or notebook computer used for storing, evaluating and providing reports of the digital format data. The EVMS is adapted for use in a vehicle specifically designed for electric propulsion or for use in an internal combustion engine vehicle converted to electrical power use. The sensors include voltmeters, ammeters, thermocouples, optical shaft encoders and an inclinometer and provide data to both the operator display and the data acquisition system. The operator display includes bargraphs for current draw, motor and battery temperature, accessory battery voltage, main battery voltage or 'fuel level' and alphanumeric displays for vehicle speed, distance traveled, trip meter and transmission gear indicator.

Electric vehicle monitoring system

A stand-alone electronic simulator device for testing expendable bathythegraph (XBT) systems. The device is inserted into an XBT system in place of an expendable probe for purposes of checking the performance of the rest of the system with an active test signal. The test device simulates an operational XBT probe by switching a highly accurate and stable array of resistance values across its output. The switching rate is controlled by a stable internal time base such that the test pattern plotted on the strip chart recorder and transmitted to an external system will always look the same if the system is functioning properly. Temperature stability in the test device, essential because of the broad ambient temperature range which may be encountered in use, allows checks of the system for probe depth timing linearization in addition to temperature measurement.

Test device for expendable bathythermograph set (XBT)

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Mystic, CT, United States of America

Kenneth R Galliher