Search found 186 matches

by tomtom50
Feb 06 2019 10:48pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

Thank you for the explaniont Do i need some sort of special cable to flash the firmware? I saw the open source software, but it looks more complicated that i can handle See https://www.eco-ebike.com/blogs/eco-cycles-instructionals/tsdz2programmingfromscratch Shows how to make the cable and connect....
by tomtom50
Feb 05 2019 11:40pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

I am a litle lost in somany pages... Can i get a 36v motor and plug directly a 48v battery? If no, what should i do to ? Thanks in advance If you buy a 36V TSDZ2 and plug in a 48V battery it won't work because the controller settings are wrong. If you flash stock 48V firmware on the 36V system it w...
by tomtom50
Feb 05 2019 11:34pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

Whilst upgrading to 52V I messed up and installed an 8-pin controller into my motor while only having a couple of 6-pin displays to go with it. Anybody know where to get an adapter cable to bridge? My google-fu failed me and since I already feel stupid I thought it would be more productive to ask h...
by tomtom50
Feb 03 2019 11:10am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

Thanks Roydon Would 52v 17ah be overkill with the GA cells? Not if you want TSDZ2 for your entire century ride! :) It totally depends on what you want to do. I have 52V 12.8Ah (56 cell) shark that is good for 75 miles the way I ride. But I never ride 75 miles at once, I'm perfectly happy limiting a...
by tomtom50
Jan 29 2019 12:41am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

Thanks for info. Are you in the ebike business?
by tomtom50
Jan 28 2019 12:18am
Forum: Motor Technology
Topic: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor
Replies: 3769
Views: 177256

Re: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor

Usual gripe but always worth mentioning though is that with gloves on or in the dark when increasing the assist level with the up button it is all too easy to enter the set power mode as the on/off button is inadvertently pressed at the same time and as the up button was pressed I'm having the same...
by tomtom50
Jan 28 2019 12:11am
Forum: E-Bike Reviews & Testing
Topic: $300 Hobby King Ebike (Battery in hub!)
Replies: 15
Views: 1781

Re: $300 Hobby King Ebike (Battery in hub!)

Matador wrote:
Jan 27 2019 1:40pm
should go around 13-17 miles with that. Samsung 35E i'm guessing. So that's max 24A in a 3P config.
I think I wouldve done the opposite. Motor in the rear and battery in front wheel
Agreed. Motor in rear and battery in front would be better
by tomtom50
Jan 27 2019 12:37pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

GA cells in a 2P configuration are not great for continuous output above 12-13 amps. I always use a higher power cell like the Samsung 30Q which are great up to 25 amps continuous and peaks of 35-40 amps. A little overkill for TSDZ2 but can also be used for Bafang BBS02 and BBSHD. Slightly lower ca...
by tomtom50
Jan 26 2019 6:09pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

I just saw this nice light TSDZ2 build. https://endless-sphere.com/forums/viewtopic.php?f=4&t=93713 He used a 14S2P battery from Biktrix that is tiny. https://www.biktrix.ca/products/wee-wee-battery-pack I have seen similar packs at Luna but this is nicer and cheaper, and it includes a nicely sized ...
by tomtom50
Jan 26 2019 5:57pm
Forum: E-Bike Reviews & Testing
Topic: $300 Hobby King Ebike (Battery in hub!)
Replies: 15
Views: 1781

Re: $300 Hobby King Ebike (Battery in hub!)

When I looked yesterday AM, it was $299, then last night sold out @ $888. Incredible deal for $299 IMO, but I didn't need one. I guess it sold out shortly after I posted. I'm glad I got it for my son. He just rode it for the first time. I just rode it, more powerful than I expected. Unlike my TSDZ2...
by tomtom50
Jan 26 2019 11:09am
Forum: E-Bike Reviews & Testing
Topic: Biktrix 52V Ting Sheng TSDZ2B and Wee Wee Battery Review
Replies: 8
Views: 1970

Re: Biktrix 52V Ting Sheng TSDZ2B and Wee Wee Battery Review

That's a great combo! I put a TSDZ2 on an old Trek touring bike and it is great, so great I put in the time to do the open source upgrade (stock firmware is fine, open source has cool bells and whistles). I have a 14S 2P battery, twice the weight of yours. I have never run it down more than half in ...
by tomtom50
Jan 26 2019 10:49am
Forum: E-Bike Reviews & Testing
Topic: $300 Hobby King Ebike (Battery in hub!)
Replies: 15
Views: 1781

Re: $300 Hobby King Ebike (Battery in hub!)

Yep 888$ not 250. And the descriptions says the battery is built into the bicycle central frame. How could you fit 10S3P in such a small hub and at the same time find space for copper windings, magnet and planetary gear. I think this looks fishy. THe controller is also external cheap chinese clone ...
by tomtom50
Jan 26 2019 10:42am
Forum: E-Bike Reviews & Testing
Topic: $300 Hobby King Ebike (Battery in hub!)
Replies: 15
Views: 1781

Re: $300 Hobby King Ebike (Battery in hub!)

Yeah that's pretty light for the capacity. Ever thought about removing the battery and putting it in the triangle? Would help weight balance and handling quite a bit. [/quote It is 5.5 pounds hard mounted on the rear axle. With a rider on the bike the center of gravity shift if moved forward would ...
by tomtom50
Jan 26 2019 10:32am
Forum: E-Bike Reviews & Testing
Topic: $300 Hobby King Ebike (Battery in hub!)
Replies: 15
Views: 1781

Re: $300 Hobby King Ebike (Battery in hub!)

It tells me it's $888.18. Minimalist looking, 250w. I should think one could do better picking out a bike they like better and getting a kit they like better, all for less. So it sure LOOKS like a front hub drive, but they say it's a rear hub drive. Motor Type: Rear-Mounted Geared Hub, High-Speed B...
by tomtom50
Jan 25 2019 11:04pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: Open Source Upgrade with Waterproof Connectors

For my setup it's even more complicated as I'm installing the kit on a drop bar bike and all the HWBS have 3 pins (5V, signal and 0V). https://em3ev.com/shop/hwbs-ebrake-sensor/ Can I splice in a 2 pin Higo to a 3 wire HWBS and drop a wire? The only 2 pin Higo brakes that might work for a drop bar ...
by tomtom50
Jan 25 2019 10:58pm
Forum: E-Bike Reviews & Testing
Topic: $300 Hobby King Ebike (Battery in hub!)
Replies: 15
Views: 1781

Re: $300 Hobby King Ebike (Battery in hub!)

Here are photos of the battery. The labels says the cells are Samsung, I'll consider it confirmed, I don't want to cut the heat shrink. HobbyKing claimed 8.8Ah, the labels says 10.4Ah. It is 10S 3P, that means the cells are 3450mAh, top rate cells. DSC00391 label says Samsung.jpg DSC00394 Weight.jpg...
by tomtom50
Jan 25 2019 1:41pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: Open Source Upgrade with Waterproof Connectors

Tomtom, I like your waterproof cable setup and plan to try it down the road when I switch over to the KT-LCD3. But I had a couple of questions about the brakes you used. I haven't found many brakes using the 2 pin Higo (red) most use a 3 pin connector (Higo (yellow) or JST). The 36V TSDZ2 kit I bou...
by tomtom50
Jan 24 2019 3:15pm
Forum: E-Bike Reviews & Testing
Topic: $300 Hobby King Ebike (Battery in hub!)
Replies: 15
Views: 1781

$300 Hobby King Ebike (Battery in hub!)

$299 for an ebike https://hobbyking.com/en_us/electric-toad-bike-fy-5-us-ar-plug.html Not well described at the website, it looks like an rear motor ebike. I never imagined they would mount the battery in the rear hub. Actually a battery.jpg But actually the battery is in the rear hub! Weird. Here i...
by tomtom50
Jan 23 2019 2:03pm
Forum: Motor Technology
Topic: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor
Replies: 3769
Views: 177256

Re: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor

Saltwater is definitely not the Ebikers friend! I think that looks fixable assuming the electrical contacts are still good inside. I hope you get it sorted quickly. Just on a similar point, to tidy up the cable splice between the KT-LCD3 screen cable and the larger 8 pin cable I 3D printed a simple...
by tomtom50
Jan 23 2019 6:06am
Forum: Motor Technology
Topic: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor
Replies: 3769
Views: 177256

Re: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor

My bike is away getting a needed sand blasting and paint. So whenever I test the firmware I use my fathers bike. He installed the firmware and connected everything on his own bike. But not all was made completely weatherproof. Well it was, but it really needs extra protection due to the weather we ...
by tomtom50
Jan 23 2019 6:01am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

How do i get into the menu with this lcd screen? https://www.google.com/imgres?imgurl=https%3A%2F%2Fi.postimg.cc%2FHxN51wCs%2FCaptura-de-ecr-de-2018-11-01-11-09-03.png&imgrefurl=https%3A%2F%2Fwww.endless-sphere.com%2Fforums%2Fviewtopic.php%3Ff%3D28%26t%3D79788%26start%3D3750&docid=0I6KbEvnqJK4lM&tb...
by tomtom50
Jan 22 2019 5:05pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

How do i get into the menu with this lcd screen? https://www.google.com/imgres?imgurl=https%3A%2F%2Fi.postimg.cc%2FHxN51wCs%2FCaptura-de-ecr-de-2018-11-01-11-09-03.png&imgrefurl=https%3A%2F%2Fwww.endless-sphere.com%2Fforums%2Fviewtopic.php%3Ff%3D28%26t%3D79788%26start%3D3750&docid=0I6KbEvnqJK4lM&tb...
by tomtom50
Jan 22 2019 5:03pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5782
Views: 475797

Re: New "TSDZ2 Torque Sensor Central Motor"

I am developing OpenSource firmware for that LCD -- nice to see that some TSDZ2 is being sold with that LCD model, so users will not need to wire the LCD to TSDZ2. Here is an example of the TDSZ2 being sold with the Bafang display. https://www.aliexpress.com/item/Tongsheng-TSDZ2-DIY-Conversion-ebik...
by tomtom50
Jan 22 2019 4:57pm
Forum: Motor Technology
Topic: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor
Replies: 3769
Views: 177256

Re: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor

Do appreciate the time you took to write and give your thoughts! A very interesting comparison as well! As you noted SDCC is very good at creating fast code and is one of the best compilers in that comparison. There are alternatives that could maybe change the size somewhat but I do not like to com...
by tomtom50
Jan 22 2019 4:47pm
Forum: Motor Technology
Topic: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor
Replies: 3769
Views: 177256

Re: TSDZ2 mid drive -- Flexible OpenSource firmware for TongSheng TSDZ2 mid drive motor

I tested at 20-90 deg C using my 3D printer heater bed which can be set to a stable temperature, left at each temperature for 5 min to stabilise and cross-referenced with an IR thermometer. But at the higher temperatures, I am almost 20°C out assuming a 10mV per °C reading??? I think the issue migh...