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Functional Exerciser That Simulates and Tests Various Automotive Vehicle Electrical Systems

IP.com Disclosure Number: IPCOM000035943D
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Austin, W: AUTHOR [+4]

Abstract

This article describes a tester for a technician terminal to electrically analyze automotive vehicles.

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This is the abbreviated version, containing approximately 100% of the total text.

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Functional Exerciser That Simulates and Tests Various Automotive Vehicle Electrical Systems

This article describes a tester for a technician terminal to electrically analyze automotive vehicles.

A technician terminal electrically analyzes automotive vehicles. Fig. 1 is a perspective view of such a terminal. The analysis includes all digital and analog voltages, current and resistance measurements. A tester is needed for use with the terminal to simulate various engines plus accessories such as fans, air conditioners, temperature controls, etc.

The simulator (tester) disclosed herein simulates an actual automobile. As illustrated in Fig. 2, it provides functions on four channels designated I/O INF, TEST, assembly line diagnostic link (ALDL) and PROBE BATT as follows: 7 programmed resistances to test 3 ohmmeter

ranges.

5 programmed voltage levels to test 3 voltmeter

ranges.

Voltage pulses to test pulse-width measurement.

Measures voltage sourcing capability of the

technician

terminal.

Tests over-current shutdown protection in the

technician

terminal.

Transmits serial pulse trains to the technician

terminal

and verifies returned pulse trains.

3 transmission rates, 8192, 80 and 160 bits per

second

(BPS), for the telephone/modem application are

checked.

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