12GS - VSS or tapping ABS?

[bonox]

Wow there are a lot of electronic cruise control mentions in here, but noone has posted methods for getting speed.

I can't get the audiovox unit many of you use, but I can get alternatives that pickup VSS signals or have a hall effect sensor and a few magnets you mount on a drive shaft or wheel.

Now, my 12gsa has abs and like all the 12's, has a hall effect sensor in the rear drive that does double duty as abs and road speed (I think that is how i'm reading the circuit diagram).

Has anyone ever tapped an abs sensor for a pulse signal to get a cruise working?

If you try to tap an injector/spark etc lead on a 12, where did you do it?

And finally, for those of you who go bush a lot or bury the bike on water crossings, any thoughts on whether electric units are sealed (vacuum ones certainly are not) or if you could add a snorkal to a vacuum unit?

[bonox]

I should add here, that after pulling apart an RT and GS throttle cable splitter box, the housings appear to be identical and the only difference is that the RT has a second return line coming in on the RHS of the box, and a second quarter arc pull quadrant for the cruise actuator cable.

ie, if you want to put up with a single pull throttle cable, adding a cruise to a 12gs is a very simple affair of adding two new parts (a torsion spring and the cruise quadrant wheel).

[Poolside]

Originally Posted by bonox

. . . if you want to put up with a single pull throttle cable, adding a cruise to a 12gs is a very simple affair of adding two new parts (a torsion spring and the cruise quadrant wheel).

Can a return cable be added to the 12GS?

It seems from the information you gave about the spiltter box cable inputs, that the 12RT has a return cable coming from the grip. Does it?

- Jim

[bonox]

Originally Posted by Poolside

Can a return cable be added to the 12GS?

It seems from the information you gave about the spiltter box cable inputs, that the 12RT has a return cable coming from the grip. Does it?

- Jim

yes it does. You could add a return cable if you want, but you'll need a new throttle grip assembly. Not too hard by any means. If you want to go the whole RT route, there is also a switch assembly in the splitter box the registers a cancel with rolling off the throttle firmly past 'zero'

None of that interests me though.

So, VSS or ABS signals anyone?

[Poolside]

No that 's cool. You can run without a return. I'm just asking mang.

Does the cable drum on the throttle (heated) grip have two grooves in it? One for open and one for close? I understand there might be other hardware parts needed, but a new heated grip too?

What brand of cruise are you using? I'd like to download a manual and diagram before I get into this.

Hall Effect, Variable Reluctance (what I think the rear sensor is on your 1200), Coil Drive, Injector Drive, all can be used as a signal source for anything you might want, without harm to the bike. There might need to be some signal conditioning, depends on the sensor and the input circuit on the CC.

Where can I get a manual and diagram?

- Jim

[bonox]

Originally Posted by Poolside

No that 's cool. You can run without a return. I'm just asking mang.

Does the cable drum on the throttle (heated) grip have two grooves in it? One for open and one for close? I understand there might be other hardware parts needed, but a new heated grip too?

What brand of cruise are you using? I'd like to download a manual and diagram before I get into this.

Hall Effect, Variable Reluctance (what I think the rear sensor is on your 1200), Coil Drive, Injector Drive, all can be used as a signal source for anything you might want, without harm to the bike. There might need to be some signal conditioning, depends on the sensor and the input circuit on the CC.

Where can I get a manual and diagram?

- Jim

not sure about user guides - you might try these for some generic ones though.

http://www.conrad-anderson.co.uk/cru...ser-guides.htm

i'm using a korean lite-on unit (AP-150)

No idea about number of grooves on the throttle tube, but by XX has a single cable that loops around the throttle tube and terminates in two lines at the throttle body. You may be able to retrofit an independent return line at the throttle tube if you wish. It is only a quarter turn, so coming in at top and bottom will not result in tangling as both lines will never overlap.

I've heard that some VSS signals on CANBUS cars are not clean enough (not sufficiently square edged) for the cheaper cruise units to utilise. I'm wondering if this is the case on a 12GS, and if it is, can i get the same info from the ABS sensor directly.

The only previous units i've used have been "mount a magnet on the wheel" affairs, and I can't find a place to do this on the GS. Have you any further info on filtering such signals? Are there circuit diagrams or premade boards out there for this?