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by methods
Nov 09, 2017 1:23 pm
Forum: Food and Drink
Topic: $55 unlimited high speed mobile data
Replies: 3
Views: 105

Re: $55 unlimited high speed mobile data

I have been doing pretty well balancing power usage on the phone with leveraging WIFI I went from apx 11GB data month down to 5GB last month... but that was only because I worked from home most of the time. I just reset my data counter. We will see..... Striaght Talk got into trouble 5years back for...
by methods
Nov 09, 2017 1:14 pm
Forum: Food and Drink
Topic: $55 unlimited high speed mobile data
Replies: 3
Views: 105

Re: $55 unlimited high speed mobile data

Of course... I will reset my data counter... and show that I am actually burning 10's of GB for that $55

Video conferencing daily on the go

-methods
by methods
Nov 09, 2017 1:13 pm
Forum: Food and Drink
Topic: $55 unlimited high speed mobile data
Replies: 3
Views: 105

$55 unlimited high speed mobile data

Straight Talk changed the plans again. The plan I am on now offers: 1) Unlimited calls and text (incoming international, no outgoing international) 2) Unlimited data.. it used to be 15GB at high speed (4G 50Mb on ATT towers), then low speed (2g crawl)... now it appears that they lifted the cap again...
by methods
Nov 08, 2017 3:44 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

Report.jpg Ah man... really? Sigh... Ok... I am heading to the climbing gym then. Gotta burn off nervous energy in a way that involves physical activity I still have THIS going on in my shoulder ShoulderSmall.jpg But I have been going to physical therapy and the lady there (who climbs!) gave me the...
by methods
Nov 08, 2017 2:20 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

Hey... we all have to put in our time as Meatheads.
Thats how you graduate to BrownHorn

-methdos
by methods
Nov 08, 2017 2:19 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

Ok... I have a free hour. I am going to draw up the formal proof and present it. I am just DREADING calling Sevcon after all the negative feedback I have heard from guys in the field. Sure... fools call Sevcon all the time... so they cant have a $250k/yr Wizard answering the phone. I totally underst...
by methods
Nov 08, 2017 2:00 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

Drew it on the board. Went over what I remember from talking with folks who were developing this stuff back in the day. Back in the day throttles with a built in switch were... I guess... not as available as they are now. Some major developers moved forward on a Magura type throttle - No switch. If ...
by methods
Nov 08, 2017 1:45 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

FYI... I am killing time over here. Day got derailed by a development. Should be over at Calfee Design wiring up a bike (parts are int) Excited to get that done. Engineering bike... clean one... :D I realized that I have been dragging my feet over the throttle interlock stuff. Trying to sort out the...
by methods
Nov 08, 2017 1:40 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

And yes... Unless the bikes I have tested were Engineering... There are more than a few out in the wild... That if you apply full throttle.... And then you bump out of Drive.... and then you bump back into drive... Step-function the throttle. Just tested it on the bench the other day. Admittedly it ...
by methods
Nov 08, 2017 1:36 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

So... thats not the spot we will deal with it. Rate of change would be a spot where we could do it How many 1000RPM per second it is allowed to accelerate But... those are across the board settings... and I only want to affect response at 0RPM Step Function (Throttle goes from 0% to X% instantly) Im...
by methods
Nov 08, 2017 1:17 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

Arbitrary map pulled from our repository
ArbitraryMap.png
ArbitraryMap.png (21.49 KiB) Viewed 180 times
(ack... work stuff... to be continued)

Anyway - note the performance at 0RPM
Its a major trade-off and not the spot where I want to deal with adversarial throttle injection

-methods
by methods
Nov 08, 2017 11:31 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

Slide #6 DVT, DCF's, DLD's and understanding the big picture.... A word of caution So... you are using DVT as your portal to the Sevcon DVT simply passes thru a DLD and, as far as I can tell, has no knowledge of the DLD behavior DVT parses a DCF It shows you whatever the last software programmer hap...
by methods
Nov 08, 2017 11:20 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

Throttle direction

Forward
Reverse
FS1

Inch Fwd
Inch Rev

Deadman

Belly

Belt Fwd
Belt Rev
Belt Stop

-methods
by methods
Nov 08, 2017 11:18 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

So on a naive search (the kind that happens on a phone, at lunch, half distracted)... The only instance of the word Sequence is 2918 In there we see some interesting things... which can help us back out what the DLD is doing. Sorting by BITMASK=0x Your parsing machine produces the following (You hav...
by methods
Nov 08, 2017 11:04 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

Not it... but inching closer.... Looking for the bit (no pun intended) which insists that a sequence be: All other bits cleared (FWD, FS1, Other) Throttle now checked for return to zero (inside of a WINDOW... so... ARBITRARY percentage window) proceed if so, otherwise lock until return Yep... Racers...
by methods
Nov 07, 2017 10:00 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Re: Sevcon Gen4 - Throttle Interlock Sequence

That safety is built in, resistance in the 10s of k. Return to Zero behavior for "enable" is what I am trying to turn on. I will search the DCF... Steady state (not Startup) FS1, FWD, or both are open 50% throttle applied... Via Electrical fault FS1 and FWD are closed Looking to force a return to 0%...
by methods
Nov 04, 2017 1:43 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4 - Throttle Interlock Sequence
Replies: 16
Views: 319

Sevcon Gen4 - Throttle Interlock Sequence

Hey guys... As fechter always says... "one test is worth a thousand opinions" In short: Sevcon Gen 4 5K pot throttle (or even hall throttle) Built in NO micro switch We have 3 major events to detect and protect against 1) Low Votlage on Throttle signal 2) High Voltage on Throttle siginal 3) Unexpect...
by methods
Nov 04, 2017 12:36 pm
Forum: E-Bike General Discussion
Topic: A 1982 Raleigh 10 speed with TSDZ2 mid-drive
Replies: 112
Views: 5268

Re: A 1982 Raleigh 10 speed with TSDZ2 mid-drive

Looks like things are progressing.

Glad we did not lose any membership
(or any membership we lost can be rebuilt)

-methods
by methods
Oct 30, 2017 10:56 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Sevcon Gen4: Old DCF on a newer DLD
Replies: 0
Views: 110

Sevcon Gen4: Old DCF on a newer DLD

That's a topic for discussion. I propose a test Procure 2pcs DLD file... one older... say 2012.... and one newer... say 2016 Procure 2pcs DCF file... one older... say 2012.... and one newer... say 2016 Load 2012 DLD then 2012 DCF, make minor adjustments, confirm good performance Load 2016 DLD then 2...
by methods
Oct 17, 2017 11:07 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: ixxat USB-to-CAN compact & Sevcon DLD flashing
Replies: 79
Views: 3434

Re: ixxat USB-to-CAN compact & Sevcon DLD flashing

Turns out it was the outlier Not one, but two blown IXXAT dongles. Both Isolated Compact and V2 Compact V2 Compact blew the digital isolator. Turned it into a heater. Threw me off because it would work for 3 or 10 seconds... then overheat and shut down. Upon clear examination the dongle was actually...
by methods
Oct 17, 2017 9:48 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: ixxat USB-to-CAN compact & Sevcon DLD flashing
Replies: 79
Views: 3434

Re: ixxat USB-to-CAN compact & Sevcon DLD flashing

Idiot.png I was trapped in IXXAT hell for a couple days.... I think that was me.... I went FULL RETARD and... Bugged smart guys with a problem.... before I painstakingly eliminated every possibility of it being my fault. How it happened... (mindflowdump) (With regard to IXXAT dongles going bad, iso...
by methods
Oct 13, 2017 1:09 pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: ixxat USB-to-CAN compact & Sevcon DLD flashing
Replies: 79
Views: 3434

Re: ixxat USB-to-CAN compact & Sevcon DLD flashing

Not up to date on this thread: FYI: We had some DCF files land in the Schindler Engineering Repository. http://www.schindlerengineering.com/public/repository/ We are not in a position to distribute anything proprietary like DVT software... but if you find yourself with a motor that you are trying to...
by methods
Oct 13, 2017 12:54 pm
Forum: Battery Technology
Topic: LTC6811 Implementation Thread
Replies: 128
Views: 5307

Re: LTC6811 Implementation Thread

Update: I am extremely busy with work but we were able to hit the FAST FORWARD button. We have teamed up with a UK entity who has provided qualified 6811 slaves. Those should be coming in the mail any day now. For my efforts here (strictly DIY for my boat... not for my close friends Electric Airplan...
by methods
Sep 24, 2017 11:02 am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Alight sin/cos encoder of motenergy motor with SEVCON
Replies: 5
Views: 488

Re: Alight sin/cos encoder of motenergy motor with SEVCON

Back to the top... Since we have a member with only 4 posts who clearly described a way to solve a tough problem that a lot of us run into.... At Calfee Design we use an automated calibration station that works by measuring freewheel power while adjusting timing to converge on the correct setting. A...
by methods
Sep 14, 2017 11:13 am
Forum: Battery Technology
Topic: Calculating System Reliability
Replies: 6
Views: 341

Re: Calculating System Reliability

Wow, that read made me depressed :shock: Ignore it and march on brother. Whatever you are doing I am sure it is radical. Keep building, testing, and sharing what you learn. Guys like BigMoose and I can absolutely assert that a particular path forward will ultimately result in a high probability of ...