Calculated load
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The calculated engine load "LOAD_CLC [%]" is based on the measured mass air flow (metered by the h ot-f ilm air-m ass sensor (HFM)).
Strategy:
A 2-dimensional map is used to interpolate the calculated engine load "LOAD_CLC [%]" depending on metered mass air flow and engine speed. A weighting factor is applied to compensate the altitude influence.
The calculation is performed as follows:
LOAD_CLC [%] = LOAD_CLC_RAW f (metered mass air flow, engine speed)
x (1013hPa / ambient pressure) x 100%
with:
CALCULATION CHART
| LOAD_CLC | calculated engine load in % with altitude correction |
| LOAD_CLC_RAW | calculated engine load in % without altitude correction |
In case of a malfunction of the HFM, the metered mass air flow is substituted by a modeled mass air flow value.