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Acceleration Pump (Read 6719 times)

Luhbo Full Member Offline I Like My15M! Posts: 186 Germany	Acceleration Pump 07/30/09 at 06:19:24 I wish I could configure or, if that's too difficult, at least switch off the acceleration pump emulation. Hubert
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raz Senior Member Offline Guzzi 11OO Sport, My16MkV, Innovate LC-1 Posts: 373 Stockholm, Sweden Gender:	Re: Acceleration Pump Reply #1 - 08/06/09 at 11:14:34 In the meantime, a brief description of how that feature is implemented today would be very nice, for understanding logs. When does it kick in? For how long? How much boost? Is it disabled during Autotune?
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Luhbo Full Member Offline I Like My15M! Posts: 186 Germany	Re: Acceleration Pump Reply #2 - 08/07/09 at 06:04:53 Open EcuControl and watch the little black cursor/indicator jump around when you whack the throttle. This might give you an idea how it works (what I guess at least). The faster you open, the higher it jumps. Hubert
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_Cliff_

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I Love YaBB 2!

Posts: 126

Re: Acceleration Pump
Reply #3 - 08/08/09 at 10:24:36

The problem with the current throttle pump emulation is that it is more a mathematical model rather than anything thats relates to bikes but here goes an explanation.

There are 2 parts to this.
The first part is the generation of an average throttle position.
The code for this is

AvgThrottlePos = (3*AvgThrottlePos + throttle)/4;

This is done every powercycle.

As an example let's say the throttle goes from steady 100 to steady 200

Throttle 100 200 200 200 200 200 200 200
Avg 100 125 143 157 167 175 181 185

The 2nd part calculates the map entry and is
Throttle += (Throttle - AvgThrottlePos)*2;
This gives
Index 100 350 314 283 266 250 238 230

At idle this is about 0.7secs, at 2000RPM about 1/3sec.

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raz

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Guzzi 11OO Sport, My16MkV,
Innovate LC-1

Posts: 373
Stockholm, Sweden
Gender: male

Re: Acceleration Pump
Reply #4 - 09/02/09 at 08:01:45

Map (10.1,10.3) RPM=4078 Inj=10426us BaroAdj=105.8% o2Adj=100.0% o2[1] o2Target=0.00V o2=2.14V OilT=77.0C AirT=13.0C AirP=1024mb Thro=788 Bat=14.06V
Map (10.5,11.5) RPM=4355 Inj=11468us BaroAdj=105.8% o2Adj=100.0% o2[1] o2Target=0.00V o2=2.24V OilT=77.0C AirT=13.0C AirP=1024mb Thro=834 Bat=13.86V
Map (10.9,11.7) RPM=4612 Inj=11614us BaroAdj=105.7% o2Adj=100.0% o2[1] o2Target=0.00V o2=2.24V OilT=77.0C AirT=13.0C AirP=1023mb Thro=877 Bat=14.08V
Map (11.4,12.4) RPM=4892 Inj=12189us BaroAdj=105.8% o2Adj=100.0% o2[1] o2Target=0.00V o2=2.16V OilT=77.0C AirT=13.0C AirP=1024mb Thro=913 Bat=14.00V
Map (11.8,12.1) RPM=5197 Inj=12191us BaroAdj=105.8% o2Adj=100.0% o2[1] o2Target=0.00V o2=2.30V OilT=77.0C AirT=13.0C AirP=1024mb Thro=915 Bat=13.97V
Map (12.2,11.9) RPM=5470 Inj=12396us BaroAdj=105.8% o2Adj=100.0% o2[1] o2Target=0.00V o2=2.21V OilT=77.0C AirT=13.0C AirP=1024mb Thro=915 Bat=13.94V

So the logs do reflect the acceleration pump result in the Map (r,t) coordinates, but shows the true TPS (Thro) as read from the sensor, right? I thought it was strange the TPS and the coordinates did not always follow, but this explains that.

59° North
1100 Sport iniezione elettronica -- the perfect merge of a superbike and a steam train

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_Cliff_ Full Member Offline I Love YaBB 2! Posts: 126	Re: Acceleration Pump Reply #5 - 09/02/09 at 09:42:37 Yes you are correct.
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raz Senior Member Offline Guzzi 11OO Sport, My16MkV, Innovate LC-1 Posts: 373 Stockholm, Sweden Gender:	Re: Acceleration Pump Reply #6 - 09/09/09 at 02:56:22 The same goes for raw serial data, right? Map coordinates are always including accel pump?
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_Cliff_ Full Member Offline I Love YaBB 2! Posts: 126	Re: Acceleration Pump Reply #7 - 09/09/09 at 07:52:41 Yes. The conversion is only into readable form. There is no interpretation of the data.
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