MoTeC Global Forum

is it possible to set up conditions where at certain gps starting and stopping points on a track you could have more or less traction control?

this is for a motorcycle.

it seems as though this method if possible would have some flaws that it could lose gps signal.

that said, does the m600 have the ability to utilize a lean angle gauge of some sort or a Inertial measurment unit?.

or

is there a way to develop a "track map" that where varying levels of TC could be requested for certain corners.

Use GPS for your lap beacon.

Then you will be able to have a TC gain or slip comp table with lap distance as an axis.

As long as you pick a GPS beacon point that has a reliable signal it will be reliable no matter what the signal does in other points of the lap.

thanks

The more i ponder this the more i get a little hesitant to use this method. loss of gps signal concerns me, and then i thought that utilizing just a regular beacon would be a better solution but again, it is possible to miss a beacon hit if another rider is next to you.

is anyone had any issues with the method when using the gps signal as a beacon?

I am working with a team now that has been trying an IMU but even that has proven difficult, but it's more a problem with the equipments calibration when manufactured.

anyone have any suggestions for specific equipment that measures lean angle?

FoxPerformance wrote:...
anyone have any suggestions for specific equipment that measures lean angle?

Like this?
http://www.flickr.com/photos/32230177@N06/5317415681/
If so the you need some gyros.

But that is fraught with a lot of maths, etc.

I made some studies on building my own IMU, based on acc, gyro, mags and GPS sensors used in RC models world. Using a separate microcontroller and lot of maths (DCM, khalman), it will give very good results, but it will give you lean angle relative to earth, not track surface. As it is good in a flat track, it will be very wrong in a track like Laguna Seca, in the corkscrew for example. Or where banking is significative.

Angelo

Polux RSV wrote:I made some studies on building my own IMU, based on acc, gyro, mags and GPS sensors used in RC models world. Using a separate microcontroller and lot of maths (DCM, khalman), it will give very good results, but it will give you lean angle relative to earth, not track surface. As it is good in a flat track, it will be very wrong in a track like Laguna Seca, in the corkscrew for example. Or where banking is significative.

Angelo

You might be able to overcome that with a car where the 4 wheels are generally on the road.
Or similarly for a track where one might be able to map the surface.

But yes it needs to be relative to something, and the earth seems pretty fixed (in a relative sense).

GPS Beacon signal works perfectly for me.

If you have ADL the you can also set the track length and have the beacon reset automatically if it goes beyond a percentage of the track distance, this covers the odd missed beacon if it should happen.

Holmz wrote:

FoxPerformance wrote:...
anyone have any suggestions for specific equipment that measures lean angle?

Like this?
http://www.flickr.com/photos/32230177@N06/5317415681/
If so the you need some gyros.

But that is fraught with a lot of maths, etc.

Yes the gyro looks like the best solution and hopefully cheaper than the imu. holmz what brand of units are you using?

FoxPerformance wrote:

Holmz wrote:

FoxPerformance wrote:Yes the gyro looks like the best solution and hopefully cheaper than the imu. holmz what brand of units are you using?

From "Tell me it ain't so - Joe"... I am using an IMU.