Pit Lane Limiter

Alfagta · Post by **Alfagta** » Wed Oct 01, 2014 1:25 pm

Hello,

would it be possible to get a Pit Lane Limiter Mode.
With an user setable Speed Limit.

Best Regards

AbatelliCristian · Post by **AbatelliCristian** » Wed Oct 01, 2014 3:50 pm

Hi have request this strategy time ego.... I Think is good idea for race car.

Speedy_G · Post by **Speedy_G** » Fri Oct 03, 2014 3:08 am

+1

would be nice to trigger the limiter via VSS. So the gear would't matter.
Additional to the 3-step limiter.

kizzoalfa · Post by **kizzoalfa** » Fri Oct 03, 2014 7:48 am

kjones6039 · Post by **kjones6039** » Fri Oct 03, 2014 7:56 am

Interesting....... A little self restraint might work too.....

slow_hemi6 · Post by **slow_hemi6** » Fri Oct 03, 2014 2:50 pm

^

C'mon Ken the big dollar F1 drivers can't go 10 minutes without running into something or someone.
If any of them had self restraint they would not have had to bring in and enforce pit lane speeding penalties.
Like any safety regulation though, once they are in, they are here to stay.
If MS want's to be in the motorsport arena then this is a feature that is going to be requested more often as the lower classes play follow the leader with the pros.

kjones6039 · Post by **kjones6039** » Fri Oct 03, 2014 5:21 pm

My apologies! I knew I shouldn't have, before I ever posted that!

I have found that, as I have aged (a lot), I get more and more cynical!!

Ken

thokes82 · Post by **thokes82** » Sat Oct 04, 2014 7:22 am

+1
Good to bring it back on the table but I think it is not going to come. MS developers rather spend months on developing the right air-conditioning control strategy or support of old fashioned 4-speed automatic gearboxes before they would include anything for real racing.
Sequential up- and down-shifting with throttle blip was also not considered yet.

racingmini_mtl · Post by **racingmini_mtl** » Sat Oct 04, 2014 10:15 am

thokes82 wrote:MS developers rather spend months on developing the right air-conditioning control strategy or support of old fashioned 4-speed automatic gearboxes before they would include anything for real racing.

That's a bit unfair. There has been many racing features implemented but they may not be the ones you want or for the type of racing you do. Also, there are likely significantly more MS3 users who use air conditioning and 4-speed automatic transmissions compared to the number of those road racing.

Jean

kjones6039 · Post by **kjones6039** » Sat Oct 04, 2014 2:16 pm

racingmini_mtl wrote:there are likely significantly more MS3 users who use air conditioning and 4-speed automatic transmissions compared to the number of those road racing.

Amen!

Ken

slow_hemi6 · Post by **slow_hemi6** » Sat Oct 04, 2014 4:48 pm

One issue is my definition of real racing involves a H pattern and the heel toe. Sequential paddle and auto blippin is for car pointers, not for race car drivers. Rip em like Ronnie Sox ya big girls blouses.

kjones6039 · Post by **kjones6039** » Sat Oct 04, 2014 5:04 pm

I'm impressed with anyone who actually remembers Ronnie Sox and Buddy Martin!!!!
BTW.... what ever happened to AFX??? And the ThunderBolt Fairlane and the Mystery Chevelle and .............. sigh....... Now that was some kinda racin'!! No 'rolling starts' there!

Closest thing to a paddle shifter was a pushbutton Torqueflite..... only 3 speeds though.....

Ken

slow_hemi6 · Post by **slow_hemi6** » Sat Oct 04, 2014 5:31 pm

Failure of any mopar enthusiast to know about Sox and Martin is an actual crime.
Anyway, gone fairly off topic here. Better give it a rest.

Alfagta · Post by **Alfagta** » Wed Oct 15, 2014 12:04 am

Any thoughts James?
By the way i won't use it on Public Road.
I have a Race Car with MS2 installed.
And i will convert to MS3 this Winter.
A Pit Lane limiter would be a nice feature.

Best Regards

Post by **jsmcortina** » Mon Oct 20, 2014 3:46 pm

I've had a look at the pit lane limiter. In a brief bit of on-vehicle testing (on stands) it is actually quite tricky to get smooth operation. Perhaps it will be better when driving.

James

thokes82 · Post by **thokes82** » Mon Oct 20, 2014 9:56 pm

Probably better to limit to a pre-calculated rpm. This could reduce the degree of freedom for the controller.

Alfagta · Post by **Alfagta** » Mon Oct 20, 2014 10:17 pm

Hello,
normally it works as follow:

With the Pit Lane button Rev Limit is adjusted according to the selected gear.
So you can easily calculate which Rev Limit is needed to match a required speed limit.

The Ignition (maybe fuel also) should be cutted until the car reaches the required Speed Limit.
When the actual Speed is lower or equal then the required one the Ignition (fuel) come back.
Then the MS compare the Required and the actual Speed. If the Actual is higher (its not good

) the Rev limit must be lowered automatically.

I think it's the way all the other do it.

Best regards

Post by **jsmcortina** » Tue Oct 21, 2014 2:59 am

That's likely fine with a manal, but what about a loose auto?

James

Alfagta · Post by **Alfagta** » Tue Oct 21, 2014 3:21 am

jsmcortina wrote:That's likely fine with a manal, but what about a loose auto?

James

I don't really understand what you mean.

Post by **jsmcortina** » Tue Oct 21, 2014 3:28 am

With a torque convertor there is "slop" so there isn't a 1:1 relationship between RPM and VSS. That makes it difficult to use RPM limiting to maintain or limit MPH.

James

Megasquirt Support Forum (MSEXTRA)

Pit Lane Limiter

Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter

Re: Pit Lane Limiter