Estimation of Cylinder Compression Using the Transient Rotational Speed of Flywheel

Paper #:
  • 950005

Published:
  • 1995-02-01
Citation:
Zhang, L., Cheng, Y., Wu, B., Huang, Y. et al., "Estimation of Cylinder Compression Using the Transient Rotational Speed of Flywheel," SAE Technical Paper 950005, 1995, https://doi.org/10.4271/950005.
Pages:
7
Abstract:
In this paper authors propose a new method for estimation of cylinder compression. Under motoring condition, when the transient rotational speed fluctuation of flywheel within a working cycle has been measured, the Max. compressive pressure of each cylinder were calculated based on the principle of inertia acceleration.The testing results of 4 and 6 cylinder engines show that, the measured errors were within ±3%, so it is a proper tool for fast estimation the compression of engine mounted on vehicles especially.
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