A New Combustion Pressure Sensor for Advanced Engine Management

Paper #:
  • 940379

Published:
  • 1994-03-01
Citation:
Herden, W. and Küsell, M., "A New Combustion Pressure Sensor for Advanced Engine Management," SAE Technical Paper 940379, 1994, https://doi.org/10.4271/940379.
Pages:
10
Abstract:
A new combustion pressure sensor (CPS) for advanced engine management is presented, which is designed to carry out the functions: misfire detection, knock control, ignition control, camshaft phase detection and engine roughness control. For small size and high accuracy at a reasonable cost the piezoresistive effect, which is realized within an integrated circuit device and delivers low impedance output signals, has been chosen. Due to the optimized sensor housing, membrane and force transfer design, the sensor shows little offset drift when affected by flame front and environmental thermal stress. This paper describes the CPS and its performance in comparison with a well-known highly accurate reference sensor.
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