DCCD users please

[kamineko]

for people that use the classic manual DCCD in a track environment,

how do you use it generally?

and assuming you understand the shortfalls, how would your ideal Auto DCCD function?

thanks

[madmike]

On the 2nd orange for me in the dry.

In the wet i go up to fully locked.

Gravel, fully locked.

Ideal would be unlocking under hard braking and locking up via eithe throttle position or g sensors.

[GC8E2DD]

Keep winding the lock on until I cannot put up with any more understeer, and leave it there.

I think probably I would want an auto feature to wind lock on as steering angle decreased, but I guess that requires sensors that don't exist on the car currently. Under braking I think I would like some lock for stability. Ideally you would set a minimum lock level and the system would operate from that level up, dropping out completely in cases of handbrake operation or near enough to full steering lock. I have often thought about having a second switch wired the same as the handbrake switch somewhere on the steering wheel.

[GC8E2DD]

Forgot to mention. Happy to trial one of your controllers ;]

[ADIKT]

 GC8E2DD said:

Keep winding the lock on until I cannot put up with any more understeer, and leave it there.

I think probably I would want an auto feature to wind lock on as steering angle decreased, but I guess that requires sensors that don't exist on the car currently. Under braking I think I would like some lock for stability. Ideally you would set a minimum lock level and the system would operate from that level up, dropping out completely in cases of handbrake operation or near enough to full steering lock. I have often thought about having a second switch wired the same as the handbrake switch somewhere on the steering wheel.

That seem like a good idea for all the manual dccd users!

[grim]

 GC8E2DD said:

Keep winding the lock on until I cannot put up with any more understeer, and leave it there.

I think probably I would want an auto feature to wind lock on as steering angle decreased, but I guess that requires sensors that don't exist on the car currently. Under braking I think I would like some lock for stability. Ideally you would set a minimum lock level and the system would operate from that level up, dropping out completely in cases of handbrake operation or near enough to full steering lock. I have often thought about having a second switch wired the same as the handbrake switch somewhere on the steering wheel.

ditto

[albaru]

Unlock before and into corner and three quarters way round. Lock on exit of corner.

How about voice command? "Lock" and "Open"

[DacerX]

Sounds like we are getting cars closer to kitt

[subieboy]

I believe this article may be of assistance to you...

http://www.autospeed.com.au/A_107753/cms/article.html

They basically fudged with the electronics

[kamineko]

yeah thats a fun read

i have a fairly capable controller working on my bench, with longG / latG / tps / speed inputs but trying to decide if i need an encoder on the steering wheel or not.

my driving style on track has adapted to the poor turn in of dccd, but i have a mechanical front diff so my ideal seems to differ somewhat to the typical dccd setup.

i have a few different strategies in mind for the 'control' but i want to understand what you guys with 'typical' dccd think

[albaru]

 kamineko said:

i have a few different strategies in mind for the 'control'

Oooooh - Mind Control!

[kamineko]

Hokay thanks for the input. For the past month or so I've been building an auto dccd unit, primarily to lower my own times on track, but I'm sure there is a small market for such a unit.

I would like to gauge interest, and what feature-set I should aim for

I know professional units are available - but this has been built from the ground up and aimed at being cheap and locally tested and produced.

So far the main objectives are:

Basic operation:

- Maintain lock during braking before turn in

- Reduce lock turning into the apex

- Increase lock through corner exit

Functionality:

- Max diff lock or 'lock range' set by factory dial

- Multi mode track/grass/manual/launch

- Diff output displayed on dash as normal, regardless of auto or manual.

- simple 4 position rotary switch to change modes

Install:

- Piggyback style in between factory loom and factory dccd controller (version 2 -> 6)

- connection to Throttle and Speed required at car ecu

- X/Y axis G sensors required (source from wreckers, build your own mounting bracket)

Looking at around $250 built, after a quick tally-up of parts and cheaaaap labour haha

Ok so my question is if that's the simple unit, would you pay extra for 'nifty' stuff

- small LCD display showing modes, data etc

- rotary push-button switch, just like a profecIIb, to change modes etc

- small multiaxis G sensor included, with mount

Looking at an extra $100 on top

Worth it?

[funkytown]

J0000 has a pm

[X]

i got the auto DCCD in my coupe. i find it easy to use and dont have to worry about anything else

[madmike]

Very interested Nick!!!!!

[thorpy]

I would be keen on some way of logging the g sensor output to plot on a scatter type graph.

[kamineko]

 thorpy said:

I would be keen on some way of logging the g sensor output to plot on a scatter type graph.

hmm not really the intention of this project. you can get data loggers with a nice pc-interface already, Al has one.

[X]

i got a ver8 sti dccd ecu and some sensors if u need it bro

[rex-leggy]

im planing to install a dccd.

so a unit like you describe would be perfect for me . but would i work for cars which dont have the standard dccd controls/dash displays?

[kamineko]

 rex-leggy said:

im planing to install a dccd.

so a unit like you describe would be perfect for me . but would i work for cars which dont have the standard dccd controls/dash displays?

no, this plugs into your factory complete dccd system. - keeps reliability high and installation easy

a total replacement box would be something i'd consider in the future

[rex-leggy]

 kamineko']

[quote name='rex-leggy said:

im planing to install a dccd.

so a unit like you describe would be perfect for me . but would i work for cars which dont have the standard dccd controls/dash displays?

/quote]

no, this plugs into your factory complete dccd system. - keeps reliability high and installation easy

a total replacement box would be something i'd consider in the future

sweet worth a try

[X]

you going to love DCCD in your car Josh

[rex-leggy]

 X said:

you going to love DCCD in your car Josh

hmmm who is this mr x he knows me . nice work with seans car you are the mad scientist .

[Kiwi_Fozze]

i'd love to get dccd into the foz.... I think a 6 speed with dccd from a v8 would be hellishly fun....

[AlteredSpecC]

Sounds good to me bro!!