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A Karman Vortex Airflow Sensor
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English
Abstract
A Karman vortex airflow sensor has been developed and adopted to a new electronically controlled fuel injection system, named ECI, of Mitsubishi Motors' 1.8 and 2.0-liter naturally aspirated and turbocharged engines. The sensor consists of an air channel with a triangular strut to generate the Karman Vortex Street, a couple of ultrasonic transmitter and receiver to detect the vortexes, and a control unit using custom designed ICs.
This paper presents the principle, the construction and characteristics of the sensor.
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Authors
- T. Sasaki - Electronic Engine Control Section Himeji Works Mitsubishi Electric Corp. Himeji, Japan
- Y. Asayama - Electronic Engine Control Section Himeji Works Mitsubishi Electric Corp. Himeji, Japan
- Y. Motoyoshi
- H. Yamamoto - Engineering Department Oval Engineering Corp. Ltd. Tokyo, Japan
- T. Fukami - Engineering Department Oval Engineering Corp. Ltd. Tokyo, Japan
Citation
Sasaki, T., Asayama, Y., Motoyoshi, Y., Yamamoto, H. et al., "A Karman Vortex Airflow Sensor," SAE Technical Paper 820322, 1982, https://doi.org/10.4271/820322.Also In
References
- Fukui T. Endo N. Sasaki T. Ishida T. “A New Type Electronically Controlled Fuel Injection System.” SAE 811418 November 1981
- Joy R. D. “Air Flow Measurement for Engine Control.” SAE 760018 Februry 1976
- Cartmell B. C. Zeisler F. L. “Engine Mass Air Flow Meter.” SAE 760017 Februry 1976
- Mcclure N. D. Vincent W. A. “The Advantages and Limitations of Linear-Compatible Integrated Injection Logic for Automotive Electronics.” SAE 800472 1980
- Barnicoat G. D. Thorne G. A. Joy R. D. “An Automotive Mass Airflow Sensor.” 2nd International Conference on Automotive Electronics October 1979