MoTeC M1 Software Tutorial: Injector Characterisation
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Injector Characterisation
01.00
| 00:00 | One requirement for a VE based fuel model to work correctly is that the ECU needs to accurately understand the injector flow, or how what pulsewidth is necessary to achieve a certain amount of fuel delivery. |
| 00:13 | Injector characterisation describes the process of defining the fuel flow through the injector as a function of injector pulsewidth. |
| 00:22 | Conventional ECUs usually incorporate a 2D table of injector battery compensation or deadtime as a function of battery voltage, or even a 3D table, adding the effect of fuel pressure. |
| 00:35 | The M1 takes this one step further to fully define the injector flow, specifically in the non linear area of an injectors operation that is prevalent at small pulse widths. |
| 00:48 | While full injector characterisation does give the most accurate control over the air fuel ratio, it does require accurate injector data in the first place. |
