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longtermoctane [2008/01/23 11:02]
76.100.119.159 created
longtermoctane [2008/01/24 07:33] (current)
twdorris
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-====== ​Details ​======+====== ​The Whats and Hows of LongTermOctane ​======
  
 Effectively,​ the DSM ECU uses two tables to calculate a "​basic"​ ignition advance value. ​ One table is used when the ECU believes fuel octane is at its highest value. ​ The other table is used when the ECU believes fuel octane is at its lowest value. ​ The ECU interpolates between these two extremes by adjusting its idea of fuel octane. ​ This adjustment is done by monitoring knock retard (the amount of ignition delay added in by the ECU in response to knock sensor activity). ​ More detonation means more knock retard and a lower "​value"​ for the ECU's fuel octane rating. Effectively,​ the DSM ECU uses two tables to calculate a "​basic"​ ignition advance value. ​ One table is used when the ECU believes fuel octane is at its highest value. ​ The other table is used when the ECU believes fuel octane is at its lowest value. ​ The ECU interpolates between these two extremes by adjusting its idea of fuel octane. ​ This adjustment is done by monitoring knock retard (the amount of ignition delay added in by the ECU in response to knock sensor activity). ​ More detonation means more knock retard and a lower "​value"​ for the ECU's fuel octane rating.
longtermoctane.txt ยท Last modified: 2008/01/24 07:33 by twdorris