- Category Technical paper
- Related event International Congress : SIA Powertrain - Versailles 2015 - 27-28 May 2015
- Edition SIA
- Date 05/27/2015
- Author M. Häfner, JC Lamodière, R. Dolt, M. Müller - Kistler Instrumente
- Language English
Type PDF file (866.25 Ko)
(Downloadable immediately on receipt of online payment)
- Number of pages 8
- Code R-2015-04-33
- Fee Free
Working with abnormal combustion, especially pre-ignition, is a strong constraint during the development of modern turbocharged gasoline engines. Indeed, pre-ignition can lead to the breakage of the engine and its equipment, including the cylinder pressure sensors. Such phenomenon is still difficult to anticipate and even impossible if the cylinder pressure sensor has been damaged.
In this study we will evaluate the influence of the sensor’s type and its mounting location on the detection and evaluation of pre-ignition events. Several tests have been performed on a 4-cylinder turbocharged gasoline engine and led to concrete recommendations dealing with:
- The sensor itself to prevent from any premature breakage.
- The complete measuring chain, i.e. sensor + signal conditioning + data acquisition, to get a workable cylinder pressure signal and therefore better characterize these pre-ignition events.