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garygid
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Fri Aug 19, 2011 3:32 pm

Avr-can is about 50 milli-amps, and the led display about 50
As I recall.
See SOC/GID-Meter and CAN-Do Info
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TomT
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Fri Aug 19, 2011 7:47 pm

One suggestion for a slight change in the data displayed. Since mileage at different speeds is such a large variable, I'd prefer to see range expressed at a function of M/KwH which is much more of an absolute. Perhaps you could add that in parentheses after the speed if you wanted to display both...
Last edited by TomT on Fri Aug 19, 2011 9:14 pm, edited 1 time in total.
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evnow
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Fri Aug 19, 2011 7:50 pm

mogur wrote:One suggestion for a slight change in the data displayed. Since mileage at different speeds is such a large variable, I'd prefer to see range expressed at a function of M/KwH which is much more of an absolute. Perhaps you could add that in parentheses after the speed if you anted to display both...
The reason for miles instead of m/kwh is that it is easier to control speed than m/kwh directly. Essentially, one can figure out what speed they could use to reach their destination given the SOC - with all the relevent disclaimers added.

Still, I can add the m/kwh - I'd have to find the real estate somewhere. May be remove the "mph".
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surfingslovak
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Fri Aug 19, 2011 8:18 pm

evnow wrote:
mogur wrote:Still, I can add the m/kwh - I'd have to find the real estate somewhere. May be remove the "mph".
+1 I'd really like to see that too! The Nokia display is a great improvement.

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TonyWilliams
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Fri Aug 19, 2011 9:13 pm

mogur wrote:I'd prefer to see range expressed at a function of M/KwH which is much more of an absolute. Perhaps you could add that in parentheses after the speed if you anted to display both...
Ditto... speed and m/kWh.

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TonyWilliams
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Fri Aug 19, 2011 9:18 pm

evnow wrote: The reason for miles instead of m/kwh is that it is easier to control speed than m/kwh directly. Essentially, one can figure out what speed they could use to reach their destination given the SOC - with all the relevent disclaimers added.

I was strongly in that camp... but, both pieces of data have useful functions, particularly for the "around town" driving with so many variables, nobody could ever guess what the range might be. Except, to look and see that they were averaging 3.9m/kWh; well, then, assuming similar driving around town, the car will go about 81 miles.

The hills might be tough to figure with this device. Could we have an input that said that my destination is XXXX feet about/below my departure point? Then a subroutine that inflated / deflated the mileage based on whatever criteria seems most logical?

Awesome work, by the way!!! I'm super pumped about getting this in my car :mrgreen:

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evnow
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Fri Aug 19, 2011 10:34 pm

TonyWilliams wrote:The hills might be tough to figure with this device. Could we have an input that said that my destination is XXXX feet about/below my departure point? Then a subroutine that inflated / deflated the mileage based on whatever criteria seems most logical?
Something like that would need to be a phone app. There isn't an easy way to take any inputs.

Unless we adopt a serial LCD with numeric pad like this ... "I2C & Serial LCD 20x4 + keypad contr Arduino Microchip" on e-bay.
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derkraut
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Sat Aug 20, 2011 9:25 am

Stoaty wrote:Outstanding! The exact information you need, all in one place and elegantly displayed. Sure would like to own one of these.
+1. Add me to that list. I'm not "electrically inclined"; but I surely would like to have this type of information available in the cockpit.
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garygid
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Sat Aug 20, 2011 10:19 am

Using the 4-character display, I can show basically the same information:

The Red Button (unused in vF1.07) will be a "Mode" button, selecting different types (or groups) of information to display.

One tap on the Red button could change to Battery Pack mode, with the Black button cycling through Volts (roughly 300.0 to 400.0 volts), Amps (roughly 199.9 "out" to -99.9 "in" amps), and possibly Pack Power (-P99 to P99 in kW).

Another press of the Red button could be Range-Table Mode (NOT to be believed):

Then, MM:RR might show MM as your current mph (and/or perhaps 10 to 70 in steps of 5 or 10), and RR being the ESTIMATED (not DEPENDABLE) remaining range, based on the car's current SOC and your actual/selected speed.

Etc. ... so, even the 4-digit display can be useful.
See SOC/GID-Meter and CAN-Do Info
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gascant
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Re: LEAF SOC gauge with Nokia 6610 LCD display

Sat Aug 20, 2011 8:25 pm

Sweet! Enjoying the progress by all. Last Saturday night, the SOC gauge went from "nice to have" to "must have". Keep up the good work. Maybe you'll have on-board memory (or SD card) at some point so we can do trip recording?
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