Out early this morning on the private track, managed a 5.65, 5.75, 4.93 and then in an attempt to beet the 4.93 i had a bit of a burnout and got 7.07. All in all i'm well chuffed, I had hoped to achieve roughly what i got on the first run.

Question, in data display mode i am not getting any readout for duty cycle, could some kind hearted person explain what duty cycle is and why i seem to be getting a zero reading at a stand still and when driving slowly? does it only register at higher speeds?

 

My car is a JDM TT 2+2 Auto with Megan decat, Blue Flame cat back, Mines ECU and Apexi induction.

 

Thanks in advance

 

DGM

Duty cycle is roughly defined as the ratio of the amount of time a signal is "active" to the amount of time available for the signal to be active. A couple examples. In the examples that follow, the amount of time available for the signal is 20ms (milliseconds).

 

 

Signal is never active = 0ms/20ms= 0% duty cycle

 

Signal is always active = 20ms/20ms = 100% duty cycle

 

Signal is active for 8ms = 8ms/20ms = 40% duty cycle

Duty cycle is roughly defined as the ratio of the amount of time a signal is "active" to the amount of time available for the signal to be active. A couple examples. In the examples that follow, the amount of time available for the signal is 20ms (milliseconds).

 

 

Signal is never active = 0ms/20ms= 0% duty cycle

 

Signal is always active = 20ms/20ms = 100% duty cycle

 

Signal is active for 8ms = 8ms/20ms = 40% duty cycle

 

Thanks for the reply, is the duty cycle monitoring one function? if so what is it?

 

Thanks again

 

DGM

You need too display injector timing as well and then duty cycle works!

ok lets say our injectors can open for a maximum of 20ms then the duty cycle is effectively measuring the amount of time that the injectors are open ( all of the injectors ) It is monitoring the injector pulse, you never ever want to run 100% duty cycle...you need dead time which is when the injector isnt energized

thanks