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DenisMitchell | b545406ac8 | |
DenisMitchell | e4ed698125 | |
DenisMitchell | ac67db6bda | |
DenisMitchell | ca1123e595 |
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@ -10,7 +10,7 @@ Three modes of charge temperature estimation are available; _RPM+TPS_, _Air Mass
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Interpolates between four coefficients based on RPM and TPS to generate a coefficient for estimating the intake air temperature. The coefficient determines the percentage of the estimated air temperature that comes from the IAT with the remainder coming from the CLT.
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![image](https://github.com/user-attachments/assets/1eecfe48-18ae-4510-8b28-ca4c4c882153)
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![image](Charge-Temp-Estimation/cteRpmTpsMode.png)
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For example, a coefficient of 0.2500 means that 25% of the estimated air temperature is from the IAT, and 75% from the CLT. If the IAT was 20C and the CLT was 80C, the calculation for estimated air temperature would be `(40C * 0.25) + (80C * 0.75) = 70C`.
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@ -20,7 +20,7 @@ A coefficient of 0.9000 (which may be used at high loads/RPM) would result in th
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Also labeled as Airflow interpolation mode. This uses linear interpolation between the _low flow coefficient_ at zero flow and the _high flow coefficient_ at the _max air flow_ to calculate the balance between IAT and CLT to arrive at the final estimated air temperature. Similar to RPM+TPS, the calculated coefficient determines what percentage of the IAT makes up the charge temperature estimate.
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![image](https://github.com/user-attachments/assets/ae7dde43-d062-4b67-89ff-a57a4bddfc52)
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![image](Charge-Temp-Estimation/cteAirflowInterpolation.png)
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For example, a _low flow coefficient_ of 0.100, a _high flow coefficent_ of 0.900 and a _max air flow_ of 300 kg/h would result in a calculated coefficient of 0.5 at an air flow of 150 kg/h. This means that the charge temperature estimate would be a 50/50 split between IAT and CLT. At or above max air flow, the calculated coefficient would be 0.9. Similar to the above examples in RPM+TPS mode, the resultant charge temperature estimate would be `(40C * 0.90) + (80C * 0.10) = 44C`.
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@ -28,7 +28,7 @@ For example, a _low flow coefficient_ of 0.100, a _high flow coefficent_ of 0.90
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Uses a 2D table to return the charge temperature estimation coefficient based on the calculated flow rate. Similar to the above examples, the resultant charge temperature estimate is calculated by `(IAT * coefficient) + (CLT * [1 - coefficient])`.
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![image](https://github.com/user-attachments/assets/174bb7a2-d67f-469a-80c8-780f70e4f7fb)
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![image](Charge-Temp-Estimation/cteCoeff.png)
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## Increase rate limit, Decrease rate limit
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