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Unread 07-13-2011, 08:29 AM   #231
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Default Re: Programming Curtis Controller

Satfrx, I just noticed your cable only has the 4 pin connector, which wouldn't hook up to the cable that fits the 840 display, which uses the 8 pin connector, even though only 3 pins are used. At least the 840 that comes with the 1238 models.
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Unread 07-13-2011, 09:40 AM   #232
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Default Re: Programming Curtis Controller

I understand about the 8-pin connector, tricky thing about the display is it does not uses the rxd-line of the controller, so not every display is guaranteed to be fully wired.

Most controllers have the 4-pin molex, I know curtis also ships RJ-?? connector cables.
No idea what pinout they have.

I used to work with two controllers, one had the 4-pin molex, so I made a 4-pin molex on my boat project. I have this permanently available, and don't have to mess around with my dashboard if I want to hook-op the programming cable.

Edwin
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Unread 07-13-2011, 11:12 AM   #233
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Default Re: Programming Curtis Controller

Quote:
About the two motors, can't you put one big controller on two motors?
This should ensure you have same rpm. Only one encoder needs to be connected.
I don't know the manual by heart, so i'm not sure what posabilities tehere are.
One could offcource connect one potmeter output to both controllers I guess.
Feeding the same analog data will probably not make the run same rpm.
Another wild idea is to put motor encoder 1 to controller 2 and vice versa.....
No idea if that could work, but maybe someone can tell us about this idea.
To use one controller and 2 motors, the Motors have to be exactly tuned to the same shaft, and their encoder needs to be tuned, but then, other things start to become issues (you have twice the inductance and half the resistance). The best idea would be to contact the manufacturer of the motor (HPEVS??) and see if they can program the curtis to send VCL throttle to the other controller. They might have another solution, but I think this would be best. The problem is, you can't do it on your own, you'll need an OEM that sold you the system to help you out.

But the bigger question is why does he need the same RPM? Set the motor to torque mode and it'l act more like a differential. I can't think of an application in a vehicle that would need exactly the same RPM, unless they were coupled together, and even then, torque mode would work.

Quote:
Sending vcl throttle data might be the best solution, i don't know.
I think he'd have to contact the OEM that sold the controller and get them to provide that coding.

Quote:
About VCL, I'd love to get a copy of this to try and change my spyglass information.
It will be no use for programming your controller, bu you could do some fun stuff.
The spyglass is a dumb serial terminal. It displays what it recieves. The messages are programmed into the controller, not the spyglass. So there's not much you can do with the 840. You need more than just the VCL to do anything with VCL. You need the OS operating on the device (curtis makes CAN controllers, IO boards, other controllers that use CAN, all need their software to do anything). They really locked this down for OEM's.
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Unread 07-13-2011, 11:15 AM   #234
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Default Re: Programming Curtis Controller

Quote:
Originally Posted by satfrx View Post
Most controllers have the 4-pin molex, I know curtis also ships RJ-?? connector cables.
No idea what pinout they have.
SOME have 4-pin molex. All of the AC line have a watertight connector on it, and you have to wire to it. The HPEVS wiring harness that comes with their kit has an 8-pin female molex attached to it that goes to the spyglass. When you plug it, you plug in the programmer. So either you need an 8-pin adapter, or you need a 8-pin plug on the end.


Quote:
I used to work with two controllers, one had the 4-pin molex, so I made a 4-pin molex on my boat project. I have this permanently available, and don't have to mess around with my dashboard if I want to hook-op the programming cable.
So you have the programmer and the LCD display hooked up at the same time? does it work ok?
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Unread 07-13-2011, 01:10 PM   #235
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Default Re: Programming Curtis Controller

The 840 does not display.
Programming Curtis Controller
Quote:
Originally Posted by satfrx View Post
Hi, I use my cable on a 1234-xxxx works like charm, the spyglass will display ******** or something like that when the Programming station software is "connected".

So at least on the 1234 one does not need to disconnectthe spyglass.

With kind regards,


Edwin
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Unread 07-13-2011, 01:45 PM   #236
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Default Re: Programming Curtis Controller

I rent old computer with normal COM port and it works first time first problem solved.... I try to setup rpm with throttle offset and some other parameters. I asked Curtis for Vcl, I am interesting what they are saying...
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Unread 07-13-2011, 01:55 PM   #237
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Default Re: Programming Curtis Controller

good luck. I've asked them (along with other people) multiple times over the years. If I'm not an OEM with deep pockets, they won't even return a call.
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Unread 07-13-2011, 06:39 PM   #238
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Default Re: Programming Curtis Controller

Why can't one pot handle both controllers??
I have made a handheld reader using a pic chip, and also have curtis software, I could make the pic write to the controller!! fill me in here and why the 8 pin connector


My baud rate setting 9600,8n1 on this I can read controller infos (mph, bdi, rpm etc...)

I use 2 motors with 2 controllers and these motors drive one shaft, will be good if I can setting same rpm, but unfortunatelly pots are not same, therefore I have big diff in rpm. I read in manual about VCL throttle, I plan that one controller send throttle value over can bus or serial port to other controller. Or any idea how can I syncronise rpm? I plan some digital potenciometer, but I don't tried.
Other I would like to clear MPH info from info panel etc...[/QUOTE]
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Unread 07-13-2011, 07:08 PM   #239
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Default Re: Programming Curtis Controller

Quote:
Originally Posted by gaminde View Post
Why can't one pot handle both controllers??
I have made a handheld reader using a pic chip, and also have curtis software, I could make the pic write to the controller!! fill me in here and why the 8 pin connector
The pot could control both, but he needs to set it to torque mode, not speed mode. two motors and 2 controllers interpret the throttle differently, so you can't really "exactly" RPM match. If he did torque mode, they could "slip" a little but be commanded to give approximately the same torque command.

As far as I know, The controller can be written to, but not while driving. It's in monitor only mode when driving.

the 8-pin connector is because the HPEVS (Hi Performance Golf Cars) AC motor setups have an 8-pin connector that goes to a curtis 840 spyglass. They wire it for TX/RX/GND and +15V so they can use it for a programming port. There is only one large connector on the Curtis AC controllers. The sepex and some of the other curtis controllers use a 4-pin plug, which is just as easy, but it plugs into the actual controller, not the harness.
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Unread 07-13-2011, 07:51 PM   #240
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Default Re: Programming Curtis Controller

Just how far off are they?? and is it linear ?? so a fixed resistor to one controller would fix this. or a balancing pot for calibration
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