The models I created are proprietary to my employer so I cannot share them.
They were fairly simple. I measured the inductance and resistance and used those values for a starting point. The inductance of course changes with the position of the armature. This can be difficult to measure: How do you apply a time varying voltage or current and measure them while having nominal DC applied and do it quickly enough to avoid overheating? I was able to make estimates based on the shape of the waveforms while the injector was being energized.
Lynn
