catoolRT provides comprehensive analysis of knock phenomena using both in-cylinder pressure and/or knock sensor acquisition. This facilitates research, engine development
and knock control calibration
Analysis features specific for knock analysis include:
- Filtering of input sensors around knock central frequency
- Knock Sensor factor and integral
- Knock Pressure factor and integral
- Checkel & Dale knock intensity and peak angle
- Knock onset angle and MFB
- Peak Knocking pressure and angle
- Angular knocking pressure
- Fourier analysis of knock sensor or pressure signals inside and out of knock window
- Signal Energy of Pressure Oscillations
Full list of cylinder pressure knock analysis channels:
- Knock Factor - KF
- Knock Integral - KNKINT
- Checkel & Dale Knock Intensity and peak crank angle (SAE 860028) - CDKNK, ACDKNK
- Knock Onset Angle (TVE method) - AKO
- Knock Onset Unburnt Mass Faction Burned (SAE 932759)- KOUMFB
- Peak Knocking Pressure and crank angle (MAPO) - KNKMAX, AKNKMX
- Crank angle knocking pressure - KNKP
- Fast Fourier Transform - FFT
- SEPO (SAE 2002-01-1668)- KISEPO
Full list of knock sensor/accelerometer analysis channels:
- Knock Factor - KBF
- Knock Integral - KNKBINT
- Fast Fourier Transform - FFT, FFTR
catoolRT
catoolRT Knock Sensor Analysis.pdf