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An Encoding Scheme for Reporting Sensor Signal Values
Technical Paper
2005-01-1366
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper presents a novel encoding scheme as an alternative to Analog amplitude encoding for communicating sensor signals. The scheme has the potential of becoming a non-proprietary industrial standard for communicating sensor information to electronic control modules. Key features of the encoding scheme are the ability to communicate two sensor values using only 3 wires (power, ground and signal) with 12 bit resolution within 1ms. The scheme includes a checksum for error detection and a mechanism for reporting serial data such as low rate sensor information, part numbers or fault codes. Data is communicated to the receiving module by varying the time between discrete (single edge polarity) transitions. The encoding is self-calibrating and does not require an expensive crystal in the sending module (assumed to be a low-cost ASIC) to maintain signal integrity.
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Authors
Citation
Costin, M., Stockbridge, J., Horner, R., McKim, D. et al., "An Encoding Scheme for Reporting Sensor Signal Values," SAE Technical Paper 2005-01-1366, 2005, https://doi.org/10.4271/2005-01-1366.Also In
Automotive Electronics on CD-ROM from the SAE 2005 World Congress
Number: SP-1980CD; Published: 2005-04-11
Number: SP-1980CD; Published: 2005-04-11
SAE 2005 Transactions Journal of Passenger Cars: Electronic and Electrical Systems
Number: V114-7; Published: 2006-02-01
Number: V114-7; Published: 2006-02-01
References
- Costin M. Schaller R. Mairoana M. Purcell J. Simon, R. Bauerle P. Stockbridge J. “An Architecture for Electronic Throttle Control Systems” 2003 Society of Automotive Engineers World Congress paper 2003-01-0098 2003
- Hobein D. Dorißen T. Durkopp K. “Progress in Automotive Position Sensors and an Introduction to the Hella Inductive Position Sensor” 2004 Society of Automotive Engineers World Congress paper 04-ANNUAL-770 2004
- Madni A.M. Vuong J.B. Wells R.F. The Next Generation of Position Sensing Technology, Part 1: Theory and Design” Sensors Magazine 42 55 March 2001