Enter sports mode by pulling both paddle shifter

[Ade]

Hey...i'm from Penang..can help to test out as well...wohooo...!! Send me ur Hp number.

 

[haywire]

North guys are smart people :4:

 

[Ade]

hey hey..i'm from central ok...just happened to get stuck in north...=P

 

[aidilj]

Ya me too, stuck in the north.. haywire, if you stop by Penang we can get some kapitan briyani action!

Ade let me build and test the circuit first, how come never see you at ZF auto before..

 

[Ade]

maybe got...just didn't notice me...hahaha...

 

[haywire]

Where's ZF? I went to Happy Motors previously..

 

[aidilj]

Happy motors is in seberang, ZF auto is located at gurney drive

 

[Spaceman]

The current 335i manual mode is activated via first pull either one of the paddles, this will engage into manual mode but will not engage into any specific gear, but rather user get to flip one more time to engage the gear. If the 2nd flipping of either paddles is not executed within a given time limit (eg. say 3-5 seconds), the mode will reset to normal D mode. This is what i heard from the 335i owner and i believe there's a module controlling this. But whether or not it can be retrofitted into E90 325, i am not sure.

 

[aidilj]

Progress report

Parts are gathered from my past unused projects and circuit was built. In the process a modification was made because the flip flop clock input is inversed, so instead of using NOR, an OR gate was used.

Picture of the circuit being tested on the bench. Switch input is a little unstable now, need to add debounce capacitor as suggested by Ade.

 

[aidilj]

Guys, a limitation of the circuit is that it doesn't reset itself when you switch out of D, means if you are in SD or M and switch to N when stopping or whenever, then switch to D again it will directly go to SD. The logic stores the last state until the engine is switch off.

And since there is no check of what gear position you are in, you can accidentally activate sports mode in any other gear and be surprised that youve activated sports mode when switching to D. All in all this behavior should not affect the gearbox.

We could do the reset when switching out of D and avoid accidental switching into sports at the expense of circuit complication.

 

[Spaceman]

Btw, havent seen my E90 engaging in N gear in M mode, only for SMG or the ///M cars?

 

[haywire]

The guy on youtube has replied my email, he is asking SGD225 for the circuit. And confirmed he is from Singapore.

 

[Ade]

way too expensive..hehe..high margin i guess. Buying a microcontroller and fabricating it will be much less...

 

[aidilj]

This is the original post for his mod in e46fanatics if you would like more information. http://www.e46fanatics.com/forum/showthread.php?t=657043

When I pulled the sports wire low, the M/S indicator on the left lit up along with the D indicator but the dash display shows SD. I don't like this very much but I supposed it is ok, differentiating which one is triggering the sport mode (the circuit or gear lever). Ade, another thing, I didn't do the divider as the datasheet mentioned that any voltage higher than 2V is considered high, what's your take on this? I'm currently doing more test, this is how it looks like now. Added POR (power on reset) so no random state when powering up, debounce capacitors. It will sit in between the original connector but we still need to tap 12V (red wire) from the cigarrete lighter connector..

 

[haywire]

This is the original post for his mod in e46fanatics if you would like more information. http://www.e46fanatics.com/forum/showthread.php?t=657043

Wow his circuit board is neat and professional looking. Even the connectors are all there on the board. Now I understand his pricing. To have a printed PCB like that must have costed a bomb, right? And on a small scale production too I think.

Even so, your normal board with similar function is also small, nearly the same size as his PCB. Why he said he needs about 30 components on the board? Is it not as efficient as your board?

Anyway bro AidilJ, is the board nearly ready then?

 

[aidilj]

haywire, I must say that his board is the proper implementation of this feature while mine is the quick way of doing it. Adding a microcontroller would increase the cost significantly. Like I posted earlier, one of the limitation in my circuit is that it doesn't reset the sports state when you switch out from D to N, and both D and S/M indicator lit up when sports is engaged.

Now I'm doing reliability testing before release of schematic.

 

[Ade]

Aidilj,
Even though the datasheet states that any voltage higher than 2V but the input high must be lower or equal than Vcc. Else, i foresee a number of issues such as leakage voltage or even the gates get burnt (even though it maybe unlikely due to high input impedance).

Version 1 looking good. I can get my hands dirty and try a version 2 with the microcontroller and imitate what the singaporean guy did....

 

[zidee]

I'm waitinggggg...he he.. Great stuff guys.

Check out this Youtube posting


[video=youtube;Qx3-OjN5yPc]http://www.youtube.com/watch?v=Qx3-OjN5yPc[/video]


I started discussing this with Haywire after I saw this clip.

My home town is Seberang Perai. Aidilj orang Melaka. Cari makan di Penang.

 

[aidilj]

Is there still interest in this project? The problem is that I no longer have a platform to test any circuit now..

 

[XXX]

wah! all the jargons used gave me a headache..anyway sorry to interrupt ur discussions...looking at how u guys are going abt this..I think my query would be only a small matter to u guys...if my car does not come with pedal shifters and I managed to fit a steering with pedal shifters, anyway of making it work? I mean as to wire it so that I can use the pedal shifters to change gears...i dont need it to be so complicated as to wht u all are discussing now, just as long as get to upshift and downshift is already nirvana for me. ThnXXX in advance.