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03-10-2009, 04:48pm
Guys,
Probably best to clarify a few things as there are 3 different tables in play on the PCV with autotune enabled rather then just the single table without autotune.
Background info in not already understood
1. Fuel Table - Adds or subtracts injector duty cycle from existing ECU signal to either increase or decrease fuel for a given RPM / Throttle opening.
2. Target AFR - The Target Air fuel ratio for a given Throttle / RPM point.
3. Trim - Looks at the Target Air fuel ratio then dynamically adds / subtracts duty cycle based on Lamba reading of actual AFR and applying to values in fuel table.
My question is basically what is the best air fuel ratio thats the best balance of power / saftey at each rpm/throttle opening.
Image supplied previously was the target AF ratio...not the fuel table or trim table. The trim table gets built dynamically whilst riding and can be written to the fuel table using the laptop.
Hope I did a better job of explaining what's going on....It's a well known fact the engineers have the worst documentation skills.
Probably best to clarify a few things as there are 3 different tables in play on the PCV with autotune enabled rather then just the single table without autotune.
Background info in not already understood
1. Fuel Table - Adds or subtracts injector duty cycle from existing ECU signal to either increase or decrease fuel for a given RPM / Throttle opening.
2. Target AFR - The Target Air fuel ratio for a given Throttle / RPM point.
3. Trim - Looks at the Target Air fuel ratio then dynamically adds / subtracts duty cycle based on Lamba reading of actual AFR and applying to values in fuel table.
My question is basically what is the best air fuel ratio thats the best balance of power / saftey at each rpm/throttle opening.
Image supplied previously was the target AF ratio...not the fuel table or trim table. The trim table gets built dynamically whilst riding and can be written to the fuel table using the laptop.
Hope I did a better job of explaining what's going on....It's a well known fact the engineers have the worst documentation skills.