An Acceleration Based Method to Determine the Octane Number Requirement of Knock Sensor Equipped Vehicles 982721
In vehicles equipped with knock sensors, it can be difficult to determine the octane number requirement according to the current Coordinating Research Council E-15 procedure which is based on detection of audible knock by trained raters. Therefore, a program was conducted to develop a new procedure which is more suitable for knock sensor equipped vehicles.
Due to adaptive actions taken by the electronic knock control system, the acceleration performance of a knock sensor equipped vehicle can be affected by fuel octane number. For the majority of vehicles tested, the acceleration time increased as fuel octane number was decreased. A promising new method was developed to determine vehicle octane number requirement based on acceleration performance.
Citation: Whelan, D., Schmidt, G., and Hischier, M., "An Acceleration Based Method to Determine the Octane Number Requirement of Knock Sensor Equipped Vehicles," SAE Technical Paper 982721, 1998, https://doi.org/10.4271/982721. Download Citation
David E. Whelan, Gerald K. Schmidt, Mark E. Hischier
Amoco Petroleum Products
International Fall Fuels and Lubricants Meeting and Exposition
Gasoline Performance and Additives-SP-1396, Sensors and Transducers-PT-68, Sensors and Transducers, Second Edition-PT-105, SAE 1998 Transactions - Journal of Fuels and Lubricants-V107-4