This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Automotive Electronic Instrument Cluster with a Programmable Non-Volatile Odometer
Annotation ability available
Sector:
Language:
English
Abstract
An electronic instrument cluster for the 1985 Chrysler H-Body car line, that resulted from a collaborative effort between the Chrysler Corporation and Motorola, Inc., is described. The intelligence of a microprocessor is used to control several vacuum fluorescent displays that provide the vehicle operator with speedometer, odometer, trip odometer and tachometer readings as well as the displays for oil pressure, vehicle system voltage, engine coolant temperature and fuel level. Various challenges that resulted from replacing the electromechanical cluster technology (in this particular application) with electronics, are described as well as the methods used to surmount them. Also described is how the non-volatile electronic odometer can be preset. The cluster has a self-diagnostic capability and a means of conveying information from the Electronic Fuel Injection (EFI) computer to the service technician. Incandescent bulbs are used for the warning and indicator lamp functions. Speed and distance values can be presented in either English or metric units at the option of the vehicle operator.
Recommended Content
Authors
Topic
Citation
Long, G. and Korn, H., "An Automotive Electronic Instrument Cluster with a Programmable Non-Volatile Odometer," SAE Technical Paper 840151, 1984, https://doi.org/10.4271/840151.Also In
References
- Bylander E.G. Electronic Displays 123 ff McGraw Hill New York, New York 1979
- Andrews B. “Techniques for Driving Digital Displays” Electronic Engineering 52 636 April 1980 39
- Scharrenberg W. “The Ins and Outs of Non-Volatile Semiconductor Memories” Electronic Design 31 17 August 18 1983 201