New "TSDZ2 Torque Sensor Central Motor"
- Thread starter larsottar
- Start date
casainho
10 GW
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- Feb 14, 2011
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I finally developed the BOOST at initial motor startup, by increasing pedal torque sensitivity at startup. Also now it fades out to the regular power (fades out to a lower or higher value). I am very happy with the result!!
This new development is included on the release V0.8: https://github.com/OpenSource-EBike-firmware/TSDZ2_wiki/wiki
This new development is included on the release V0.8: https://github.com/OpenSource-EBike-firmware/TSDZ2_wiki/wiki
Code:
4: startup power boost: boost the initial motor startup, by increasing pedal torque sensitivity at startup
0: config: default value: 1. 0 to enable power boost only when startup and bicycle wheel = 0; 1 every time pedal cadence or torque sensor are zero.
1: limit boost power to max battery power value: default value: 0. 1 to enable power boost limit to the Max battery power value.
2: boost time: default value = 25 (2.5 seconds). 0 to disable startup power boost feature.
3: boost fade out time: default value = 25 (2.5 seconds). Fade out from boost power to regular power.
4: assist level boost power: this is the boost power (for assist level 1) in watts. Note that this value is not limited by the Max battery power screen value, it is although limited by the battery max current value.
x: assist level boost power: this is the boost power for assist level x -- same as the previous and repeats for the next assist level.
jbalat
10 kW
Hey guys for those of you who are holding back or just want to know a bit more about the firmware please see my review at the link below
[youtube]IrWn6e8bIuQ[/youtube]
[youtube]IrWn6e8bIuQ[/youtube]
The work you've done with the open source firmware is truly impressive! I'm planning to fit a 36v TSDZ2 to my wife's bike. For safety's sake I think it's wise to fit brake cut-off switches. AFAIK the standard TSDZ2 display has sockets for the appropriate brake levers. Is anyone using brake cut-offs with the KT-LCD3 display and open source firmware? I've checked the wiki FAQ... there's a section about brakes but the link to additional info about the brake mod isn't working.
Thank you casainho for the answer but ".bin" files I tried to convert to "ihex" in different ways but without result, when trying to upload such converted, there was an error, so I'm looking for a proven and after conversion to the "ihex" or "s19" format
And one more thing, two months ago you uploaded files in the ".hex" format but when I read the programmed STM8, I got errors, maybe because the "ST-Link V2" cables were 18cm long?
And one more thing, two months ago you uploaded files in the ".hex" format but when I read the programmed STM8, I got errors, maybe because the "ST-Link V2" cables were 18cm long?
andrea_104kg
1 kW
- Joined
- Mar 5, 2018
- Messages
- 344
I installed the firmware v. 07 but the result is very very bad.
The engine is constantly on and off, the engine is tearing.
Every two turns of pedal only one is with assistance of the engine.
Unfortunately, so much effort for nothing
The engine is constantly on and off, the engine is tearing.
Every two turns of pedal only one is with assistance of the engine.
Unfortunately, so much effort for nothing
casainho
10 GW
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- Feb 14, 2011
- Messages
- 6,045
Try to enable motor assistance startup without pedal rotation, to see if there is any issue specific with your TSDZ2: https://github.com/OpenSource-EBike-firmware/TSDZ2_wiki/wiki/TSDZ2-and-KT-LCD3-advanced-features-with-Flexible-OpenSource-firmwaresandrea_104kg said:
Code:
5: various
1: motor assistance startup without pedal rotation: default value: 0 (disabled). 1 to enable this feature. Recommended to keep at 0 value if you don't have brake sensors installed.casainho
10 GW
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How to install TSDZ2 motor temperature sensor to avoid permanent damage/loss of torque
I installed the LM35 temperature sensor and developed the firmware to show the value on LCD3. After the first ride of 15 minutes, running at max of about 10 amps, I started at 27 degrees Celsius and finished at 85 degrees -- I wish to control my motor to not get more than 85 degrees, so clearly It is easy to get the motor over temperature!! Next I will implement the reducing of motor current linearly when temperate starts to rise after a certain value and stop after a max value.
I wrote a wiki page with notes about how to install the temperature sensor: https://github.com/OpenSource-EBike-firmware/TSDZ2_wiki/wiki/How-to-install-motor-temperature-sensor
The sensor:
And glued on the motor:
I installed the LM35 temperature sensor and developed the firmware to show the value on LCD3. After the first ride of 15 minutes, running at max of about 10 amps, I started at 27 degrees Celsius and finished at 85 degrees -- I wish to control my motor to not get more than 85 degrees, so clearly It is easy to get the motor over temperature!! Next I will implement the reducing of motor current linearly when temperate starts to rise after a certain value and stop after a max value.
I wrote a wiki page with notes about how to install the temperature sensor: https://github.com/OpenSource-EBike-firmware/TSDZ2_wiki/wiki/How-to-install-motor-temperature-sensor
The sensor:
And glued on the motor:
Is this high temperature something we need to worry about? Did you drive the motor really hard to get it this hot, or was this just a routine ride? What battery was used?
I've got a 48v 750w TSDZ2 on order, along with an LCD3 with the intention of using your open source firmware, and am looking forward to getting it up and running.
But I'm concerned if overheating will be a problem. Is there a config I can use that will prevent it from running that hot? I'd like to have the throttle for occasional hill boost, so wouldn't really want to lose it just to get a temp readout, and max-temp limiting.
The bike will be used on the road, with occasional hills to 6%. Was hoping to average low 20mphs, with a 52v 13 or 17ah battery. Will this be enough to cause the high temps you experienced?
And thanks in advance for all your work on this!
I've got a 48v 750w TSDZ2 on order, along with an LCD3 with the intention of using your open source firmware, and am looking forward to getting it up and running.
But I'm concerned if overheating will be a problem. Is there a config I can use that will prevent it from running that hot? I'd like to have the throttle for occasional hill boost, so wouldn't really want to lose it just to get a temp readout, and max-temp limiting.
The bike will be used on the road, with occasional hills to 6%. Was hoping to average low 20mphs, with a 52v 13 or 17ah battery. Will this be enough to cause the high temps you experienced?
And thanks in advance for all your work on this!
casainho said:How to install TSDZ2 motor temperature sensor to avoid permanent damage/loss of torque
I installed the LM35 temperature sensor and developed the firmware to show the value on LCD3. After the first ride of 15 minutes, running at max of about 10 amps, I started at 27 degrees Celsius and finished at 85 degrees -- I wish to control my motor to not get more than 85 degrees, so clearly It is easy to get the motor over temperature!! Next I will implement the reducing of motor current linearly when temperate starts to rise after a certain value and stop after a max value.
I wrote a wiki page with notes about how to install the temperature sensor: https://github.com/OpenSource-EBike-firmware/TSDZ2_wiki/wiki/How-to-install-motor-temperature-sensor
The sensor:
And glued on the motor:
Good work. Thanks
Azur
casainho
10 GW
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- Feb 14, 2011
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Sure it is!! I hope you did read the wiki link I post that says:spiked said:
The Curie temperature of high-grade Neodymium (with added terbium and dysprosium) is 320C / 600F. However, common neo magnets are made from the cheapest grade, and can start to lose some of their magnetism at around 80C (170F).
E-bike motor magnets are a grade that is slightly higher than the cheapest variety, because they are often subjected to higher temps than they should be by unsuspecting customers. Years of posted experiments by real E-bikers on endless-sphere have produced a commonly held rule-of-thumb to avoid heating your E-bike motor to above 95C (200F).
In: https://www.electricbike.com/motor-tech-learn-the-terms-part-1
I did not ride hard and was a routine ride, I was at max of 500W (about 10 amps) at some peaks. As you can see on LCD, I used 61 Watts/hour is 15 minutes so at power average of 61 *4 = 244 watts (half of that max of 50W).spiked said:
At 85 degrees of the motor, outside I could touch with my hand and see it was very hot but clearly I already did touch my motor from the outside more hot than that. It is easy, the same ride I did of 15 minutes, I usually do the same type of ride but for about 60 minutes - 4 times more!!
But I hope other users can replicate my experience and so we can get more data and validate all this.
lunarsteve99
1 µW
- Joined
- Sep 7, 2018
- Messages
- 1
My apologies if this has already been asked/answered. I looked through a few pages and couldn't find a straightforward answer.
With this new firmware, what kinds of speeds is this motor/controller capable of safely sustaining? I know a lot of factors are involved, but let's say a 160lb rider on flat ground, riding a hybrid/road bike. Is it reasonable to guess that 40km/h is sustainable without overheating?
With this new firmware, what kinds of speeds is this motor/controller capable of safely sustaining? I know a lot of factors are involved, but let's say a 160lb rider on flat ground, riding a hybrid/road bike. Is it reasonable to guess that 40km/h is sustainable without overheating?
andrea_104kg
1 kW
- Joined
- Mar 5, 2018
- Messages
- 344
No, the only motor to do this it's bbshd and i think bbs02 750w.
jbalat
10 kW
Hi Casainho, this is the feature I’ve been waiting for (besides walk mode)
Firstly for my 6 pin controller do you have a better picture which can help me find the throttle wires. Or will it be obvious ?
Secondly I assume we can switch between temperature and % watt hours used, if so can you also display the degC icon so we know which mode we are in.
Third have you been able to verify that 27deg and 85deg with a normal temperature gauge so that we know the scaling is accurate ?
GREAT WORK MAN !!
Firstly for my 6 pin controller do you have a better picture which can help me find the throttle wires. Or will it be obvious ?
Secondly I assume we can switch between temperature and % watt hours used, if so can you also display the degC icon so we know which mode we are in.
Third have you been able to verify that 27deg and 85deg with a normal temperature gauge so that we know the scaling is accurate ?
GREAT WORK MAN !!
