Author Topic: Rostra Cruise Control - Success !  (Read 15241 times)

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Offline Gypsy JR

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Rostra Cruise Control - Success !
« on: April 20, 2012, 09:02:56 pm »
About a month ago I ran diagnostics on the Rostra cc install on my 2012. It passed that just fine. I'm using the switch with an Engage light, so have a second relay in the circuit.

Today I took her out and got on US 81 North from Hagerstown to Chambersburg, which includes a long fairly steep incline which in the winter has tractor-trailers jacknifed and sliding down the hill.

The Rostra lit up the on light, and the illumination lights on the arrow buttons were on. I got up to speed, put her in Ecco mode, and thumbed SET. Darned if it didn't set instantly. So far so good.

Next, I pressed Accel arrow, and she sped up and when I quit pressing she set to the new speed. So I tried the Decel button, and she slowed down and set to the new speed when I released the button.

Then I touched the brakes, and she disengaged, and then I pressed Resume and she picked right up to the old speed.

I'm stoked, it was a lot of work and I cut all the wires down to just the length required, so there was always a chance I miss-spliced something or didn't solder properly.

So.... WOOHOO .... this is going to make going to Arkansas much nicer!  :08:
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Offline nxtdoor

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Re: Rostra Cruise Control - Success !
« Reply #1 on: April 20, 2012, 10:44:02 pm »
Mine worked perfectly last year when first installed and still works great.

If you follow Brian's instructions, it's a snap.

Congrats.

Jeff

Offline Gypsy JR

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Re: Rostra Cruise Control - Success !
« Reply #2 on: April 21, 2012, 02:46:06 am »
Brians instructions don't entirely work for a 2012. And he is wrong about the diagnostic sequence (didn't read the Rostra installation manual carefully) and of course, from 2010 on the VSS wire colors under the front left boot have changed. I was fortunate to find a secondary set of instructions on Murph's site before I tried to find the wire Brian listed.

But the rest of his writeup is pretty much spot on.
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Offline wendel

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Re: Rostra Cruise Control - Success !
« Reply #3 on: April 21, 2012, 11:38:26 am »
Installing mine tomorrow. I hope my installation is a success also like ya'll. I retire on 4-30-2012 and will put it to use :motonoises:

Offline Gypsy JR

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Re: Rostra Cruise Control - Success !
« Reply #4 on: April 21, 2012, 01:50:14 pm »
Installing mine tomorrow. I hope my installation is a success also like ya'll. I retire on 4-30-2012 and will put it to use :motonoises:

Gratz on retirement! Enjoy your riding adventures!

I'm still about 3-4 years away, but can see the light at the end of the tunnel!
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Offline BDF

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Re: Rostra Cruise Control - Success !
« Reply #5 on: April 21, 2012, 02:34:12 pm »
Not sure what you are talking about John but it sounds like you cleverly dodged a horrible bullet.  ::)

The VSS wires are not in a boot, they are exposed on the left side of the rear of the engine and always have been.

In the future, should you happen across any instruction, advice, warnings or any other type of intellectual output from me, please ignore it. I fear it will do you no good and your complaints afterwards annoy the author.

Brian

Brians instructions don't entirely work for a 2012. And he is wrong about the diagnostic sequence (didn't read the Rostra installation manual carefully) and of course, from 2010 on the VSS wire colors under the front left boot have changed. I was fortunate to find a secondary set of instructions on Murph's site before I tried to find the wire Brian listed.

But the rest of his writeup is pretty much spot on.
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Offline Gypsy JR

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Re: Rostra Cruise Control - Success !
« Reply #6 on: April 21, 2012, 05:17:34 pm »
I know Brian, the VSS part on the left side on the pickup that is attached to the clutch crankcase.

But the VSS signal that is needed in the left boot in front... maybe not exactly VSS but speed related. Your write up is correct for pre-2010 on wire color there, so its just a different wire color but same signal on 2010+

As for "annoy the author" try not to be so easily annoyed. Anyone who puts something in the public domain must expect corrections and critique, and it may not always be welcome.

I have mentioned how much your write up helped my installation, and pointed out the incorrect parts (from the 2010+ standpoint), and I'm sorry if you take offense to that.
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Offline RideBellChain

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Re: Rostra Cruise Control - Success !
« Reply #7 on: April 21, 2012, 08:17:02 pm »
Privateer - that's awesome!  I have true Cruise Control on my Royal Star, and it's a pleasure to set a certain speed and know that up hill, down hill, it just stays at the same speed.  Makes throttle lock seem really bad. 

So questions...
How long and what is the level of difficulty to install?  Also, price...how much did you invest if you don't mind me asking...I think CC is the one major component missing on the stock 2012 bike. If "tourer" is part of the description of the bike, they should have cruise... just sayin'  :)
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Offline BDF

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Re: Rostra Cruise Control - Success !
« Reply #8 on: April 21, 2012, 08:25:11 pm »
I am not that easily annoyed, I just do not appreciate you making such pointed, negative comments about what may or may not be mistakes on my part. It is as if you are making a point of 'straightening me out' and most of us do not care for that. It is not the message that annoys, it is the delivery. Tact is the art of rubbing out another's mistake instead of rubbing it in.

And then there is the message: you remain incorrect as there are no VSS signals available anywhere in the rubber boot you have now mentioned twice. Nor are there any 'speed' signals, nor can you use any 'speed' signals other than the single VSS connection. Good thing you had my poor directions to follow because it is clear you do not know your VSS from a hole in the ground.

Just a little bit of gentleness goes a long way in cushioning what might otherwise be a sharp statement. Perhaps you could pretend you are talking to a living, breathing human being instead of typing at some unseen entity. You could have simply stated that you got your Rostra installed, it works, and you are grateful for those who went before you and generously choose to share their experience with others, free of charge. Instead you mention how you were lucky in avoiding a miss- step due to incorrect statements made by others. Sort of like the difference between asking: 'You look different somehow, has something changed?' vs. "Wow, you are not as fat as I remember you being before.' Both statements convey the idea but only one is rude and insulting.

Have a nice day John. (seriously, not sarcastically)

Brian

I know Brian, the VSS part on the left side on the pickup that is attached to the clutch crankcase.

But the VSS signal that is needed in the left boot in front... maybe not exactly VSS but speed related. Your write up is correct for pre-2010 on wire color there, so its just a different wire color but same signal on 2010+

As for "annoy the author" try not to be so easily annoyed. Anyone who puts something in the public domain must expect corrections and critique, and it may not always be welcome.

I have mentioned how much your write up helped my installation, and pointed out the incorrect parts (from the 2010+ standpoint), and I'm sorry if you take offense to that.
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Offline Gypsy JR

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Re: Rostra Cruise Control - Success !
« Reply #9 on: April 22, 2012, 12:57:14 am »
Privateer - that's awesome!  I have true Cruise Control on my Royal Star, and it's a pleasure to set a certain speed and know that up hill, down hill, it just stays at the same speed.  Makes throttle lock seem really bad. 

So questions...
How long and what is the level of difficulty to install?  Also, price...how much did you invest if you don't mind me asking...I think CC is the one major component missing on the stock 2012 bike. If "tourer" is part of the description of the bike, they should have cruise... just sayin'  :)

It took me basically a day of actually working on it. I had to figure out how to mount it because the how-to was for pre-2010+ bikes, and my 2012 had the heat barrier in the way, which I didn't want to take out. Also, after I discovered this variance from the published how-to, I decided to search out other write-ups, and found one for a 2010 which is where I found out the wire in the front left boot is a different color combination from the how-to Brian did.

Other than that, it was pretty much follow the write-up Brian did, which helped a lot.

We all think the Concours 14 should come with a cruise control, and maybe in 2013 or 2014 KHI will add one, but knowing KHI it will cost extra. Heh.
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Offline Gypsy JR

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Re: Rostra Cruise Control - Success !
« Reply #10 on: April 22, 2012, 01:08:24 am »
Brian, you are not going to make any traction with your current  approach to this.

I found mistakes, I reported them. Someone else found the correct wire to tap in the front left boot for 2010+, I followed that information. I said how much your how-to helped me many times, in many places, other than where it didn't apply or was incorrect.

Your write up says specifically the Rostra installation manual's diagnostic instructions are wrong, yet I read the first 2 paragraphs, picked the type of switch I was installing, and followed the sequence to the letter, and it worked as expected. So why did you say the manual is wrong?

I just replied, above, I knew it was not actually the VSS signal in the front left boot, but the Rostra installation manual refers to it as a signal I need to tap, and so do you, and so does the other write-up which gets the wire colors right for 2010+.

So why you are obsessing on the fact I referred to it as the VSS signal is beyond me. I could go back and edit the post and change it to NSS if you would prefer.

 

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Offline Cap'n Bob

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Re: Rostra Cruise Control - Success !
« Reply #11 on: April 22, 2012, 08:15:39 am »
OK guys. Lets step back and breath a little. It seems like your both right and your both wrong.  Like Brian said, they way you word things can make a big differance on the way things come across. Believe me, I'm the king of having thinks come off sounding totally different than I meant. ;)

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Re: Rostra Cruise Control - Success !
« Reply #12 on: April 22, 2012, 10:34:31 am »
 :truce:
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Offline fartymarty

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Re: Rostra Cruise Control - Success !
« Reply #13 on: April 22, 2012, 06:29:54 pm »
And he is wrong about the diagnostic sequence (didn't read the Rostra installation manual carefully)

Well I remember this as being spot on the money. However I'm not sure that over the span of years Rostra
doesn't have several versions of install instructions. Someone recently said that the instructions
said not to install the unit horizontally, I looked all over my instructions and couldn't find that anywhere.

and of course, from 2010 on the VSS wire colors under the front left boot have changed.

Well this was discussed elsewhere and it was determined that Brian's wire colors (NSS) were correct if the splice was
done after the connector (between the connector under the left boot and the switch on the clutch lever, as he did)
instead of before the connector, even on a 2010.

I believe Brian's reaction was understandable, if one is accused of "not reading the instructions carefully"
one might be a little picky about VSS vs. NSS or obsessed if you prefer. I know I would.

So  :campfire: gather round for the group hug, and congrats  :bravo_2: to Privateer on his successful Rostra install.
Thanks to Brian for helping many of us make it happen on our own bikes.  :c017:
Maybe someday MaMa Kaw' will get the hint, or simply buy the Rostra company and raise prices  :-\  .
-------------------------------------

Now on to something completely different, sorta.

The engage light install: I'm thinking of going back to retrofit mine with an engaged light. I'm not sure why a relay
is needed unless a high current light is used.  If I understand it the engage wire from the unit goes to ground when
the unit is engaged and is high resistance when not engaged. Is that right? If so, wouldn't a powered small LED in series with
a resistor (aka 12v LED as sold by Radio Shack) grounded through the Rostra engage wire be less or comparable
current draw than a relay coil?
Or am I way off base here?  ???

Thanks in advance for any help or ideas on this.

 

Offline Mad River Marc

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Re: Rostra Cruise Control - Success !
« Reply #14 on: April 22, 2012, 06:52:15 pm »

The engage light install: I'm thinking of going back to retrofit mine with an engaged light.

I have the McCruise and was thinking of adding some sort of light to the dash as well...   Maybe flushing something into the guage cluster so it looks factory...

Heck I wonder if it's possible to have the stupid red security light come on when the cruise is engaged (Not like that light is usefull for anything else :) )
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Offline BDF

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Re: Rostra Cruise Control - Success !
« Reply #15 on: April 22, 2012, 08:03:14 pm »
I was all done with this thread yesterday but I am glad I happened to catch this post-

First of all, thanks for the kind words. I have helped literally dozens of folks install a Rostra on their C-14s and this was the first time my involvement became painful. Sort of like the old adage 'No good deed shall go unpunished'. Your response is greatly appreciated.

Secondly, there are no errors in the wiring layout in the original document to the best of my knowledge. I just took a look at an '08 and 2010 schematic and both have the same black wire in the same place. I believe my original instructions say a black wire with white dots- what can I say, mine had white dots on it <shrugs shoulders> but according to the service manual, the wire is black. And yes, if the incorrect side of the connector is used, that circuit uses a different wire color but that is not an error, at least not mine. Simply turn the connector around and the correct color will magically appear (reminds me of a great lollipop joke with the punch like is "Turn it over" but I cannot tell that one here).

Finally, you are exactly correct about the engaged light. The output from the actuator is sinking (negative switched) and a transistor output- I am using mine in exactly the way you describe with an amber LED and pulling something like 10 or 15 milliamps through the circuit with no problem. The relay is needed if a Rostra switch with an 'engaged' light is used because the light in those switches is connected to ground (0 volts) and switching ground to the other side of the LED won't work. The relay is used simply to flip the operation of the output to sourcing (positive switched). You would think a Rostra switch would work with a Rostra actuator but the earlier vacuum units were arranged the other way. A simple transistor circuit could also be used but I thought the relay would be easier for those unfamiliar with electronics, and they would already have to have one relay to wire the brake light switch and another relay would be simplest.

Thanks again for your comments,
Brian



Well I remember this as being spot on the money. However I'm not sure that over the span of years Rostra
doesn't have several versions of install instructions. Someone recently said that the instructions
said not to install the unit horizontally, I looked all over my instructions and couldn't find that anywhere.

Well this was discussed elsewhere and it was determined that Brian's wire colors (NSS) were correct if the splice was
done after the connector (between the connector under the left boot and the switch on the clutch lever, as he did)
instead of before the connector, even on a 2010.

I believe Brian's reaction was understandable, if one is accused of "not reading the instructions carefully"
one might be a little picky about VSS vs. NSS or obsessed if you prefer. I know I would.

So  :campfire: gather round for the group hug, and congrats  :bravo_2: to Privateer on his successful Rostra install.
Thanks to Brian for helping many of us make it happen on our own bikes.  :c017:
Maybe someday MaMa Kaw' will get the hint, or simply buy the Rostra company and raise prices  :-\  .
-------------------------------------

Now on to something completely different, sorta.

The engage light install: I'm thinking of going back to retrofit mine with an engaged light. I'm not sure why a relay
is needed unless a high current light is used.  If I understand it the engage wire from the unit goes to ground when
the unit is engaged and is high resistance when not engaged. Is that right? If so, wouldn't a powered small LED in series with
a resistor (aka 12v LED as sold by Radio Shack) grounded through the Rostra engage wire be less or comparable
current draw than a relay coil?
Or am I way off base here?  ???

Thanks in advance for any help or ideas on this.
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Offline Gypsy JR

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Re: Rostra Cruise Control - Success !
« Reply #16 on: April 22, 2012, 09:13:07 pm »
I've got mine so the Engaged light comes on when I SET or RESUME (and stays on if I ACCEL or DECEL) and it goes off if I a) touch the brakes, b) twist the throttle, c) pull the clutch in which makes the engine want to race. All of those conditions disengage the Rostra and the Engaged light of course goes out.

The need for the relay is because the Engaged light is a toggled state.... as long as a, b, or c don't happen, it stays in the toggled on state if it got put there from a SET or RESUME. If a, b, or c happen, they click the relay and toggle the state off.

Brian's instructions show you the easy way to wire this up, and it works perfectly.
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Offline Fred_Harmon_TX

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Re: Rostra Cruise Control - Success !
« Reply #17 on: April 22, 2012, 10:15:02 pm »
I believe Brian was one of the first ones to put the Rostra on a C14 and he did a good job documenting the install. I originally had an Audiovox on my 08 and got tired of issues with the vacuum control, so I switched to a Rostra in October of 2008. When I installed it, I did a lot of experimentation with different DIP switch settings, and I found that it provided a smoother operation if it was put in the 8 cylinder low mode (dip switches 7, 8 & 9 OFF).  I think Brian later went back and changed his instructions for his DIP switch settings to reflect this. I also found a way to connect the Neutral Safety (green wire on Rostra) to the bikes Starter Lockout Switch on the clutch and not even use a TACH signal pick up at all, and that is how I've been using mine ever since. I believe Brian also went back and modified his instructions to show how to do this.

Brian and I had a very long thread on the old board that was several pages long with all kinds of notes and tips in it that was all lost when the server "crashed" and all that data disappeared. I still have some photos in a gallery here that show some installation tips

http://www.pbase.com/fredharmon/audiovoxcruise

This gallery starts off showing the Audiovox install, but I updated it and added some Rostra install photos at the end.

The clutch switch wires do change when they go through the connector, but the wire color codes are the same on the 08, 09, and 10 bikes. I also suspect they are are the same on the 2011 and 2012 bikes, but I haven't taken one apart to see. As Brian noted, the confusion may come from the fact that the wire colors change as they pass through the connector on the left side of the bike. The wire you want to connect to is solid black on one side of the connector and red/green on the other side.

If you connect the clutch switch (NSS), and also connect the Rostra to the speedo (VSS) wire, you really don't need to pick off a tach signal at all, and I think Rostra even tells you to ground the blue wire if you aren't using it just to prevent any unwanted signals on it. You also need to set switch 11 to OFF for a Manual Transmission if you have the clutch wire connected. This will cause the Rostra to disengage when the clutch is pulled in and the clutch switch engages. I think Brian's instructions may still show this switch set to ON for Auto Transmission mode.

However, if you want the 1,000 RPM over-rev feature to work, then you'll need to wire the blue wire to a tach input (you can use a stick coil input wire or the crankshaft position sensor) and you'll also need to set switch 11 to ON. This will cause the Rostra to automatically disengage when it senses a sudden change in RPM, like when you pull in the clutch. In this case, you would NOT hook up the clutch (NSS) wire at all, but would instead rely on the tach signal over-rev circuit.

Also, just an FYI, the engaged light output is on the Orange wire from the Rostra, and it may be a bit hidden in the Rostra harness.

Here is how I have the switch settings on mine with no tach input and the light green (NSS) wire connected to the clutch "starter lockout" switch. The system works flawlessly when set up like this, but you must have the NSS wire hooked up.



Here are some images of where I made the connection for the NSS wire. I connected to the side of the connector with the solid black wire, but you could also use the other side, which the diagram shows as a red wire with green stripe.




And here is the wire diagram of that circuit


Also, be warned, you need to wait about 2-3 seconds after you power on the Rostra before you attempt to set the speed. If you turn it on and immediately try to set the speed, it won't set. You have a pause a couple seconds before it will work.  If I can think of any other tips, I'll come back and post them here. Hopefully this will help clear up any confusion.
« Last Edit: April 22, 2012, 10:58:55 pm by Fred_Harmon_TX »
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Offline Gypsy JR

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Re: Rostra Cruise Control - Success !
« Reply #18 on: April 23, 2012, 05:39:41 pm »
Yes the manual suggests you ground the blue wire and one or two others not used to prevent spurious RF signals.

That is what I did on my installation.
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Offline fartymarty

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Re: Rostra Cruise Control - Success !
« Reply #19 on: April 24, 2012, 04:12:37 pm »
Finally, you are exactly correct about the engaged light. The output from the actuator is sinking (negative switched) and a transistor output- I am using mine in exactly the way you describe with an amber LED and pulling something like 10 or 15 milliamps through the circuit with no problem. The relay is needed if a Rostra switch with an 'engaged' light is used because the light in those switches is connected to ground (0 volts) and switching ground to the other side of the LED won't work. The relay is used simply to flip the operation of the output to sourcing (positive switched). You would think a Rostra switch would work with a Rostra actuator but the earlier vacuum units were arranged the other way. A simple transistor circuit could also be used but I thought the relay would be easier for those unfamiliar with electronics, and they would already have to have one relay to wire the brake light switch and another relay would be simplest.

Brian

Oh good, thanks Brian, once again you've been very helpful. I can continue with my "Engaged" light retrofit as planned. I understand about the relays being easier than a simple transistor circuit. I was using two transistors in trying to make a NAND gate for the flashers on my dual Admore light install, and failing miserably  :truce: :-[ ::) :(, when it occurred to me to just use two relays in series. I can read a schematic and determine which way a diode needs to go in, but once I get into transistors and forward bias and reverse bias my brain goes tilt. I've decided that for me, a simple transistor circuit is only simple in theory, once I have to decide what resistors to use and how to connect it all up
it starts getting very complex. Then when I apply test power it goes from complex to hot, smelly, smokey, and very disappointing. Give me good ol' relays anytime.

Thanks Fred for your input as well. I'm going to double check my switch settings against yours. I also grounded my tach wire during the original install. My Rostra works pretty good now (as it did when first installed), except it occasionally needs a power reset if I override it with more throttle (to pass) and then for some reason (police ahead? :o ) disengage it with brake or clutch before returning to the previously established cruise. It doesn't happen very often.
Thanks also Fred for your unintentional help with my electro-mechanical NAND gate. I was struggling with my transistor one when I was reading another post of yours where you were explaining how the locking relay worked in the C14 headlight/starter circuit. IIRC, that's when I had my epiphany to just use relays instead of transistors. Even though the two relay circuits are different, somehow that was what gave me the idea.

Now back on topic, one of these days I'm going to search through this board and the other one and collect all the Rostra install info into a list of links and see if I can make it a sticky.
Yep.....one of these days. ::)

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Re: Rostra Cruise Control - Success !
« Reply #20 on: April 24, 2012, 04:36:56 pm »
My Rostra works pretty good now (as it did when first installed), except it occasionally needs a power reset if I override it with more throttle (to pass) and then for some reason (police ahead? :o ) disengage it with brake or clutch before returning to the previously established cruise. It doesn't happen very often.

Try using the DIP switch settings I show above and see if that helps.
Fred H.


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Offline BDF

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Re: Rostra Cruise Control - Success !
« Reply #21 on: April 24, 2012, 04:51:22 pm »
I find an 'engaged' light to be a really useful thing on a CC; it is useful now and then when in normal use but it is invaluable for initial setup or troubleshooting once the system has been in use for a while.

There was a great thread on the other forum that was a collective of quite a few of us and how we installed Rostras. There were some great ideas in that thread, and some (I thought) ingenious and very simple methods of doing things like mounting the throttle cable from the Rostra. The installation really did become something of a community project.

As far as the relays go, yep they are a simple, robust solution. For the number of times a 'engaged' light or a brake light is engaged, a relay will last forever. That said, there are simple electronic circuits sold as 'solid state relays' that are ready to go for specific voltage use (5 VDC, 12 VDC, 24 VDC, etc.). They are fully debounced and really exceptionally rugged as well as fully weatherproof (they are epoxy potted). They also draw very little current from the parent circuit. The downsides are that they are expensive at around $15, and would have to be ordered from an electronics house such as Mouser, Allied, Digi-Key, etc.

Yep, letting the smoke out of components is definitely a setback. As I once heard a power supply designer say 'When the components stop jumping off the board and bursting into flames, you are making real progress' regarding new designs.

Brian



Oh good, thanks Brian, once again you've been very helpful. I can continue with my "Engaged" light retrofit as planned. I understand about the relays being easier than a simple transistor circuit. I was using two transistors in trying to make a NAND gate for the flashers on my dual Admore light install, and failing miserably  :truce: :-[ ::) :(, when it occurred to me to just use two relays in series. I can read a schematic and determine which way a diode needs to go in, but once I get into transistors and forward bias and reverse bias my brain goes tilt. I've decided that for me, a simple transistor circuit is only simple in theory, once I have to decide what resistors to use and how to connect it all up
it starts getting very complex. Then when I apply test power it goes from complex to hot, smelly, smokey, and very disappointing. Give me good ol' relays anytime.

Thanks Fred for your input as well. I'm going to double check my switch settings against yours. I also grounded my tach wire during the original install. My Rostra works pretty good now (as it did when first installed), except it occasionally needs a power reset if I override it with more throttle (to pass) and then for some reason (police ahead? :o ) disengage it with brake or clutch before returning to the previously established cruise. It doesn't happen very often.
Thanks also Fred for your unintentional help with my electro-mechanical NAND gate. I was struggling with my transistor one when I was reading another post of yours where you were explaining how the locking relay worked in the C14 headlight/starter circuit. IIRC, that's when I had my epiphany to just use relays instead of transistors. Even though the two relay circuits are different, somehow that was what gave me the idea.

Now back on topic, one of these days I'm going to search through this board and the other one and collect all the Rostra install info into a list of links and see if I can make it a sticky.
Yep.....one of these days. ::)
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Offline Fred_Harmon_TX

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Re: Rostra Cruise Control - Success !
« Reply #22 on: April 24, 2012, 05:04:38 pm »
I find an 'engaged' light to be a really useful thing on a CC; it is useful now and then when in normal use but it is invaluable for initial setup or troubleshooting once the system has been in use for a while.

There was a great thread on the other forum that was a collective of quite a few of us and how we installed Rostras. There were some great ideas in that thread, and some (I thought) ingenious and very simple methods of doing things like mounting the throttle cable from the Rostra. The installation really did become something of a community project.

As far as the relays go, yep they are a simple, robust solution. For the number of times a 'engaged' light or a brake light is engaged, a relay will last forever. That said, there are simple electronic circuits sold as 'solid state relays' that are ready to go for specific voltage use (5 VDC, 12 VDC, 24 VDC, etc.). They are fully debounced and really exceptionally rugged as well as fully weatherproof (they are epoxy potted). They also draw very little current from the parent circuit. The downsides are that they are expensive at around $15, and would have to be ordered from an electronics house such as Mouser, Allied, Digi-Key, etc.

Yep, letting the smoke out of components is definitely a setback. As I once heard a power supply designer say 'When the components stop jumping off the board and bursting into flames, you are making real progress' regarding new designs.

Brian


A reed relay might be another good option. They draw very little current (usually 10-15 milliamps) and are also very small and compact. Here is just one as an example.

http://www.mouser.com/ProductDetail/MEDER-electronic/SIL12-1A72-71D/?qs=6LkQJpCWFTifeu4Ctb4tFgDRzs7G8uTK
Fred H.


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Offline Fred_Harmon_TX

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Re: Rostra Cruise Control - Success !
« Reply #23 on: April 25, 2012, 01:55:55 am »
I find an 'engaged' light to be a really useful thing on a CC; it is useful now and then when in normal use but it is invaluable for initial setup or troubleshooting once the system has been in use for a while.

Thanks Brian, this thread inspired me to go out to the garage tonight and finally wire up a small green "set" LED next to the control panel. Seems to work real good, but I need to test it in daylight and see if it is bright enough.

So now, even my farkles have farkles.  ;D
Fred H.


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Offline Bmar

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Re: Rostra Cruise Control - Success !
« Reply #24 on: May 20, 2012, 01:02:02 am »
Just finished the install of my Rostra Cruise Control: it is AWESOME!  I wish I had it on my trip to Alaska the other year, but that just means that I have yet another excuse to go on a long road trip.  Thank to everyone who have posted information on the Forum about this frakle.  It took about 5 hours longer (10 total) than I thought it would, but I am glad I spent the time doing the work so that the drudgery of the super slab can be endured.  Also thanks to Brian for his hard work of pioneering how to attach this system to the Concours (which should have come stock and have easier fairing to remove and reinstall) for me to follow after.