Adjustable Speed Cruise Control Switch

Joined
Oct 6, 2012
Messages
21
Hello , I have a Magic Pie 5 I ride most every day for exercise and fun ... It has a cruise control feature I like and use a lot ... sometimes if the bikes bouncing along when I'm trying to set it I'll set it to high or low ... I've seen this switch with plus and minus to set the speed ..Anyone know if this could be used with a Magic Pie 5 controller ... Any where I can buy one or something like it .... Thanks in advance for any help you can give 30ded23574f6c0670a5bf8af9c4d3b48 (1).jpg
 
Yeah I hear you, I am the same way about the cruise function I like it.
There have been some people to make their own, if you do a search.
There is a voltage range, it always has to have a minimum voltage but you press that button and its set to a voltage and thats your speed.
Its actually pretty simple in theory, depending on your knowledge level of electronics its pretty basic stuff too.
Probably just a voltage divider network with extras in the design to hold it at a voltage or whatever.
I wouldnt mind trying that cruise control unit out.
My guess is it has 3 wires for throttle and a +5v for the constant minimum voltage required.
 
donaldallen3797 said:
Hello , I have a Magic Pie 5 I ride most every day for exercise and fun ... It has a cruise control feature I like and use a lot ... sometimes if the bikes bouncing along when I'm trying to set it I'll set it to high or low ... I've seen this switch with plus and minus to set the speed ..Anyone know if this could be used with a Magic Pie 5 controller ... Any where I can buy one or something like it .... Thanks in advance for any help you can give 30ded23574f6c0670a5bf8af9c4d3b48 (1).jpg

As long as you're willing to either make yourself an adapter cable between the throttle, ebrakes, magicpie, and cruise unit, or cut and splice wiring, then yes, you can use the Crystalyte cruise unit with it. All it does is read and hold the throttle input voltage when you engage cruise, and then let you adjust that voltage up and down in steps with the +/- buttons, and disengage cruise with the ebrakes (or the button), so it works with almost any analog-throttle system.

Crystalyte's homepage http://crystalyte.com has an accessories page that still lists the device, so they may still sell it.

If they don't, you can use the Cycle Analyst to do the same job, more or less, though it requires you to do some setup in it first, to "tune" it to your system, and it is more expensive and larger. (but also much more useful if you have need of it's other functions, like monitoring your power usage, battery capacity, etc). To use the CA to do it, you'd need the CA iself, plus the DigiAux control unit, and then the right connectors and wiring (which you'd probably have to make) to put the CA between your throttle and brake controls and the MP wiring. The CA has a cruise mode you can set to engage after whatever amount of time you want, then adjust the throttle out limit with the DigiAux. It's not the same behavior as the CC unit, which is much easier to wire in and use (no setup required), but it will probably do enough of what you want once dialled in.

https://ebikes.ca/product-info/grin-products/cycle-analyst-3.html

The relevant setting section is quoted below:

[ AuxD->Function ]
Chooser to select the controlling effect of the digital control. Choices here are identical to those of the Aux Analog function selections but are mutually exclusive so a selection made in one will be excluded from appearing as an option in the other. This option is not present if no AuxD device is installed.

ThrO Lim: The Aux control applies a scaling factor to the configured MaxOut voltage. This has the effect of limiting speed by a means that is easier to tune than true speed limiting.
 
calab said:
Yeah I hear you, I am the same way about the cruise function I like it.
There have been some people to make their own, if you do a search.
There is a voltage range, it always has to have a minimum voltage but you press that button and its set to a voltage and thats your speed.
Its actually pretty simple in theory, depending on your knowledge level of electronics its pretty basic stuff too.
Probably just a voltage divider network with extras in the design to hold it at a voltage or whatever.
I wouldnt mind trying that cruise control unit out.
My guess is it has 3 wires for throttle and a +5v for the constant minimum voltage required.

Hello ..Thanks for the reply .. I have tried to find that unit a few times ..thinking it is no longer available ... I have a "tiny" bit of skills in this stuff and sorta like modifying things ...retired auto/truck mechanic from the 80's ... I understand this throttle and a Lot of other computer stuff runs on 5 volts DC ... Amazing on cars with the environment that there aren't more problems with low DC voltage connections ..
Sorry ... Can you please fill me in on this idea to make your own cruise module ? I was thinking if there was a way to convert a second throttle with a way to adjust the voltage signal ... Thanks for any help you can give .. Don
 
amberwolf said:
donaldallen3797 said:
Hello , I have a Magic Pie 5 I ride most every day for exercise and fun ... It has a cruise control feature I like and use a lot ... sometimes if the bikes bouncing along when I'm trying to set it I'll set it to high or low ... I've seen this switch with plus and minus to set the speed ..Anyone know if this could be used with a Magic Pie 5 controller ... Any where I can buy one or something like it .... Thanks in advance for any help you can give 30ded23574f6c0670a5bf8af9c4d3b48 (1).jpg

As long as you're willing to either make yourself an adapter cable between the throttle, ebrakes, magicpie, and cruise unit, or cut and splice wiring, then yes, you can use the Crystalyte cruise unit with it. All it does is read and hold the throttle input voltage when you engage cruise, and then let you adjust that voltage up and down in steps with the +/- buttons, and disengage cruise with the ebrakes (or the button), so it works with almost any analog-throttle system.

Crystalyte's homepage http://crystalyte.com has an accessories page that still lists the device, so they may still sell it.

If they don't, you can use the Cycle Analyst to do the same job, more or less, though it requires you to do some setup in it first, to "tune" it to your system, and it is more expensive and larger. (but also much more useful if you have need of it's other functions, like monitoring your power usage, battery capacity, etc). To use the CA to do it, you'd need the CA iself, plus the DigiAux control unit, and then the right connectors and wiring (which you'd probably have to make) to put the CA between your throttle and brake controls and the MP wiring. The CA has a cruise mode you can set to engage after whatever amount of time you want, then adjust the throttle out limit with the DigiAux. It's not the same behavior as the CC unit, which is much easier to wire in and use (no setup required), but it will probably do enough of what you want once dialled in.

https://ebikes.ca/product-info/grin-products/cycle-analyst-3.html

The relevant setting section is quoted below:

[ AuxD->Function ]
Chooser to select the controlling effect of the digital control. Choices here are identical to those of the Aux Analog function selections but are mutually exclusive so a selection made in one will be excluded from appearing as an option in the other. This option is not present if no AuxD device is installed.

ThrO Lim: The Aux control applies a scaling factor to the configured MaxOut voltage. This has the effect of limiting speed by a means that is easier to tune than true speed limiting.


Thank you for the reply Crystalite page has a link to dealers ... I have tried a few with no luck ...Not looking to install a cycle analyst just for this use .. I had thought maybe there was a way to adapt a second throttle for fine tuning the throttle voltage signal ....Ha ...maybe I could "invent" something ...
 
It always needs to have a minimum voltage, thats from my very limited understanding of cursory reading of something that never really interested me in the past. But I have always used cruise, its easier for me now to engage generic controller cruise with the very old Wuxing throttle I have, I still dont know what the box is on top of the throttle, must be 1.5"x2"x1/2" thick, I like it.
 
Sorry you weren't able to find that control anywhere.

I experienced the same type of full throttle unacceptable control that you described. Erratic output because of the throttle being easily jostled around do to its light mass, low twist resistance, and spring back.

My solution turned out to go to a half throttle type, by way of cutting the full throttle in half.
Allows precision throttle inputs, as you have half your grip loosely having a firm base on the outer half of the throttle.
Which gives you an area on which to rest or lean on that side also.
I also really like the Pie's cruise function and operation, and this made it even more easily adjustable.


gFzb1Po.jpg



sRbsMoJ.jpg



See the full mod here...
https://electricbike.com/forum/foru...t-52v-11-5ah-huffy-parkside?p=63415#post63415

A store bought would probably be even better with the humped grip part.



Regards,
T.C.
 
Thanks for the reply ... I did find the switch ..had it shipped from China $60 with shipping ..Then found out it won't work ..."bikemad" on another forum explained it to me ...
I like what you did with the twist throttle ..I have the twist grip shifter on that side so I'll have to think about it ..
 
Curious: Which "switch" did you find, and why won't it "work"? (a link to the post / thread would be helpful)

A link to the "switch" may be helpful in finding out if it will or will not actually work for your application.
 
A simple DIY solution is to use a half twist throttle and place a large o-ring around the gap between the grip and the throttle. There are reports of the Caterpillar 8M4991 yellow silicone o-ring being used for throttle cruise control.
 
Ah. So it isn't that it won't work, it's that the OP doesn't want to make the wiring changes (or an adapter harness) required to use it (or have someone else make one for them, if that's an option).

Unfortunately most devices out there for ebikes don't just plug into each other and work without modification since there's no single set of standards yet; this is improving but has a long way to go. :/
 
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