SAE J2601 Appendix G Interpolation of Tables -Examples 17
APPENDIX G - Interpolation of Tables -Examples
G.1 Conventional Interpolation (CHSS Capacity Category is Determined)
Linear interpolation shall be used to derive actual parameters from table values. This will be one-dimensional interpolation for the APRRactual (based on ambient temperature; see Figure G1) and two-dimensional interpolation for the target pressure (based on ambient temperature and initial CHSS pressure; see Figure G2). Note: If one of the interpolation values is in the “no fueling” zone of the table, then the dispenser should not fuel the vehicle.
EXAMPLE A: Interpolate average pressure ramp rate at 18 °C ambient temperature.
The ambient temperature measured from the station is used to linear interpolate an average pressure ramp rate (see Figure G1).
EXAMPLE B: Interpolate fueling target pressure at an Initial CHSS Pressure of 35 MPa. Note that the example table below uses the international format for commas and periods (the U.S. format is the opposite).
