CRC Program for Quantifying Performance of Knock-Sensor-Equipped Vehicles with Varying Octane Level

Abstract

A pilot study was conducted under the auspices of the Coordinating Research Council, Inc. (CRC) to assess the potential effects of gasoline octane quality on acceleration performance, fuel economy and driveability in vehicles equipped with electronic spark control systems (knock sensors). Fourteen vehicles were tested by five participating laboratories on CRC unleaded reference fuels of varying octane quality (78 to 104 RON). The test vehicles included nine naturally-aspirated and five turbocharged models. The results showed that acceleration performance was the parameter most sensitive to octane quality changes, particularly in the turbocharged models.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1990
Accession Number
ADA227340

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Automatic Transmissions
  • Barometric Pressure
  • Carburetors
  • Control Systems
  • Data Analysis
  • Fluids
  • Fuel Systems
  • Ignition
  • Internal Combustion Engines
  • Knocking
  • Measurement
  • Measuring Instruments
  • Pressure Measurement
  • Pressure Regulators
  • Road Tests
  • Standards
  • Timing Devices

Readers

  • Aviation Science / Aeronautics.
  • Petroleum Engineering

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems