THE FUTURE FOR AUTOMOTIVE DIAGNOSTIC SYSTEMS
AUTOMATED DIAGNOSTIC EQUIPMENT IS NEEDED TO PROVIDE MAINTENANCE INFORMATION TO DRIVERS AND MECHANICS AND FOR INSTANTANEOUS EVALUATION IN REGULATORY INSPECTION. A COMPUTER ANALYSIS OF ON-THE-ROAD CONDITIONS OF 2500 VEHICLES, SHOWED A WIDE RANGE OF OUT-OF-SPECIFICATION CONDITIONS IN THE VEHICLES AIR-FUEL RATIO, FRONT TO REAR BRAKE RATIO, TOE IN, IGNITION TIMING, AND SHOCK ABSORBERS. DIAGNOSTIC SUGGESTIONS PROPOSED TO INCREASE THE SAFETY OF THE VEHICLE INCLUDE: BUILT-IN CONSTANT READING TIRE GUAGES, COOLING SYSTEM LEAK CHECK, DIRECT READOUTS FOR THE AMOUNTS OF TRANSMISSION, BRAKE, AND STEERING FLUIDS, BRAKE LINING DETECTING DEVICES, A SYSTEM FOR QUICK READING OF FUEL SYSTEM INTEGRITY, AND A LIGHT CHECKING DEVICE. A TYPICAL AUTOMATIC EQUIPMENT SYSTEM WOULD CONSIST OF TWO STATIONS: THE FIRST WOULD CONSIST PRIMARILY OF MANUAL INSPECTION OF GLASS, WIPERS, SEATBELTS, HORN, HEADRESTS, EXHAUST SYSTEM, LEAKS, TIRE TREAD, AND WHEEL ALIGNMENT; THE SECOND STATION WOULD USE SENSORS AND DATA PROCESSING EQUIPMENT TO CHECK EMISSIONS, ENGINE PERFORMANCE, BRAKE SYSTEM, DRIVE TRAIN, NOISE, IGNITION, AND ELECTRICAL SYSTEMS. THE BUILT-IN-TEST EQUIPMENT (BITE) SYSTEM, A PROGRAM DESIGNED BY THE ARMY TO REDUCE FAULTY DIAGNOSIS AND THE TIME TO DIAGNOSE MALFUNCTIONS, IS DISCUSSED. FOUR ADVANCED SCIENTIFIC TOOLS PROPOSED FOR EVALUATING VEHICLE CONDITIONS ARE DESCRIBED: GAS CHROMATOGRAPHY FOR INDICATION LEAKS IN SHOCK ABSORBER AND BREAK LINES; FIBER OPTIC TECHNIQUES FOR INDICATING ROUGHNESS AND SCORING OF BRAKE DRUMS; PULSED LASER HOLOGRAPHY FOR INSPECTING TIRES, BRAKE HOSES AND LINES; AND ULTRASONIC, INFRARED, MICROWAVE AND X-RAY TECHNIQUES FOR DETECTING TIRE FLAWS. A CHRONOLOGICAL SUMMARY OF MOTOR VEHICLE DIAGNOSTIC-RELATED LEGISLATION IS ALSO PRESENTED.
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/2240909
- Publication Date: 1972-9
Media Info
- Features: Figures; Photos;
- Pagination: p. 21-27
-
Serial:
- Automotive Engineering
- Volume: 80
- Issue Number: 9
- Publisher: Society of Automotive Engineers (SAE)
- ISSN: 0098-2571
Subject/Index Terms
- TRT Terms: Automatic control; Brakes; Diagnosis; Diagnostic tests; Fuel air mixtures; Ignition; Information processing; Innovation; Inspection; Motor vehicles; Shock absorbers
- Uncontrolled Terms: Air fuel ratio; Automated diagnostics; Timing
- Old TRIS Terms: Future concepts
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;
Filing Info
- Accession Number: 00223959
- Record Type: Publication
- Files: TRIS
- Created Date: Oct 15 1972 12:00AM