Boost Compensation - Possible Implementation
Shiv has been contacted.
I decided to submit the circuit card to a fabrication house based upon the interest shown. That said I found out tonight that the off shore house will be shutdown when I planned to submit the design (until the 8th) given we are coming up on the Chinese New Year. I'll check into an alternative to improve the schedule.
So you should assume the wheels are in motion...
I decided to submit the circuit card to a fabrication house based upon the interest shown. That said I found out tonight that the off shore house will be shutdown when I planned to submit the design (until the 8th) given we are coming up on the Chinese New Year. I'll check into an alternative to improve the schedule.
So you should assume the wheels are in motion...
Originally Posted by gsujeff55
i REALLY want speed dependant launch control.
It took a day to find a circuit card fabrication house that I'm happy with, but in the end I'm going with a domestic source that will do a one day turn around on the job. So I'll submit on Monday and get the balance of the parts on order for a first lot size of 10 units.
For reference the module will be a 2in x 2in plastic box with 6 wires attached to it. The wires are,
1) +12V
2) Temp
3) Pressure
4) Vehicle speed
5) PWM
6) Clutch
7) Mode (see below)
8) Ground
Most of the signals are connected to the Xede harness board. The PWM is connected to the Xede's black connector (e.g. when the clutch line is connected if one is using NLS). The clutch line connects to the point that Vishnu cites for NLS (e.g. the clutch connection at the ECU).
The "mode" line sets the module to either boost compensation or NLS/LC. The default if left unconnected is boost comp. Grounding the mode line (e.g. similar to the Xede's map select) switches the module into NLS/LC mode. Options that come to mind are:
a) Connect up a switch
b) Leave it unconnected if you only want boost comp
c) Connect it to ground if you only want NLS/LC
d) Tie it to the Xede's red map switch signal such that one map is used with
boost comp, while the second map is for NLS/LC (recall there is only
one PWM input so we can either have boost comp or NLS/LC, but not
at same time)
If one is only using boost comp, the signals related to NLS/LC (e.g. clutch, speed) can be left unconnected. The same goes for if NLS/LC is only to be used the boost comp related signals can be left unconnected (e.g. temp, etc). This is to make it simpler for the user to connected up as I know we all love
wiring this suff...
Also I plan to write up an installation guide so don't think that this is the only source of information.
For reference the module will be a 2in x 2in plastic box with 6 wires attached to it. The wires are,
1) +12V
2) Temp
3) Pressure
4) Vehicle speed
5) PWM
6) Clutch
7) Mode (see below)
8) Ground
Most of the signals are connected to the Xede harness board. The PWM is connected to the Xede's black connector (e.g. when the clutch line is connected if one is using NLS). The clutch line connects to the point that Vishnu cites for NLS (e.g. the clutch connection at the ECU).
The "mode" line sets the module to either boost compensation or NLS/LC. The default if left unconnected is boost comp. Grounding the mode line (e.g. similar to the Xede's map select) switches the module into NLS/LC mode. Options that come to mind are:
a) Connect up a switch
b) Leave it unconnected if you only want boost comp
c) Connect it to ground if you only want NLS/LC
d) Tie it to the Xede's red map switch signal such that one map is used with
boost comp, while the second map is for NLS/LC (recall there is only
one PWM input so we can either have boost comp or NLS/LC, but not
at same time)
If one is only using boost comp, the signals related to NLS/LC (e.g. clutch, speed) can be left unconnected. The same goes for if NLS/LC is only to be used the boost comp related signals can be left unconnected (e.g. temp, etc). This is to make it simpler for the user to connected up as I know we all love
wiring this suff...Also I plan to write up an installation guide so don't think that this is the only source of information.
PM'ed you a couple of days ago.
I still need to know if you want me to send a prototype unit for you and your guys to play with while I'm waiting for material to build the first units to show up.
I still need to know if you want me to send a prototype unit for you and your guys to play with while I'm waiting for material to build the first units to show up.
Originally Posted by shiv@vishnu
Freedom-- Just PM'd you 
A short status update....
I have everything on hand to build up the first lot of 10 units, that is except for wire (e.g. box to the Xede harness connection). The wire should be delivered by the middle of next week.
That said tonight I built unit #1 of the production configuration using wire I had on hand from the prototype development effort and installed it into the car. It works just like the prototype, thus proving the new circuit card design has no errors.
When I get the wire I will build up the balance of the units.
I have everything on hand to build up the first lot of 10 units, that is except for wire (e.g. box to the Xede harness connection). The wire should be delivered by the middle of next week.
That said tonight I built unit #1 of the production configuration using wire I had on hand from the prototype development effort and installed it into the car. It works just like the prototype, thus proving the new circuit card design has no errors.
When I get the wire I will build up the balance of the units.
Last edited by freedom; Jan 31, 2006 at 05:22 PM.
I was out and about today and had an idea...
To avoid yet another switch I changed the firmware such that the module comes up in boost compensation mode if the ignition is switched on with the clutch engaged. If the clutch is disengaged when switching the ignition on, the module starts in NLS-LC mode.
In addition for those that want the module to always operate in NLS-LC mode there is still a wire which if tied to ground will force the module to come up in NLS-LC mode.
Thus this eliminates the need for a switch to control which mode the module operates in. If this sounds ok then I'm going to go with this firmware version.
Otherwise everything is still on schedule.
Edit: It's too easy to get the module into the wrong mode (e.g. forget and switch on the car with the clutch in), thus I dropped this feature. In other words to employ both modes a SPST switch to ground is required.
To avoid yet another switch
I changed the firmware such that the module comes up in boost compensation mode if the ignition is switched on with the clutch engaged. If the clutch is disengaged when switching the ignition on, the module starts in NLS-LC mode.In addition for those that want the module to always operate in NLS-LC mode there is still a wire which if tied to ground will force the module to come up in NLS-LC mode.
Thus this eliminates the need for a switch to control which mode the module operates in. If this sounds ok then I'm going to go with this firmware version.
Otherwise everything is still on schedule.
Edit: It's too easy to get the module into the wrong mode (e.g. forget and switch on the car with the clutch in), thus I dropped this feature. In other words to employ both modes a SPST switch to ground is required.
Last edited by freedom; Feb 7, 2006 at 05:23 PM.
I got chills...
http://lirama.net/song.plp/20707/20707
d
PS - cost?
PPS- What input are you using now for MAP? I want to add it to pyxede. I just realized it's been 5 months since the last version and there's lots of features in the development branch that nobody has even seen.
Originally Posted by freedom
There’re multiplying...
http://lirama.net/song.plp/20707/20707
d
PS - cost?
PPS- What input are you using now for MAP? I want to add it to pyxede. I just realized it's been 5 months since the last version and there's lots of features in the development branch that nobody has even seen.
Last edited by donour; Feb 8, 2006 at 08:30 PM.
Sign me up for one ...
although I probably won't be able to test/install one for about a month due to my work schedule. But the bigger turbo on my car desparately needs a way to keep a damper on the boost levels.
l8r)
although I probably won't be able to test/install one for about a month due to my work schedule. But the bigger turbo on my car desparately needs a way to keep a damper on the boost levels.
l8r)