ebike:ebikev1
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ebike:ebikev1 [2019/09/09 09:29] f4ija |
ebike:ebikev1 [2019/09/09 09:56] (current) f4ija |
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| The size of the battery is 13S12P, so 13 elements in serie (48.1V nominal) and 12 elements in parallel (31200 mah nominal). | The size of the battery is 13S12P, so 13 elements in serie (48.1V nominal) and 12 elements in parallel (31200 mah nominal). | ||
| - | I needed to buy some nickel straps to solder with my solder unit. | + | I needed to buy some nickel straps to solder with my solder unit. More info on [[other:soldering|DIY point soldering unit]] |
| All the elements on a table : | All the elements on a table : | ||
| - | {{ :ebike:img_20171013_132153.jpg?800 |}} | + | {{ :ebike:img_20171013_132153.jpg?600 |}} |
| During soldering : | During soldering : | ||
| - | {{ :ebike:img_20171013_205206.jpg?800 |}} | + | {{ :ebike:img_20171013_205206.jpg?600 |}} |
| - | {{ :ebike:img_20171013_211552.jpg?800 |}} | + | {{ :ebike:img_20171013_211552.jpg?600 |}} |
| The battery pack once soldered : | The battery pack once soldered : | ||
| - | {{ :ebike:img_20171014_002108.jpg?800 |}} | + | {{ :ebike:img_20171014_002108.jpg?600 |}} |
| You don't have to forget about adding a BMS (Battery Management System) to the battery pack, to preserve the battery life (you'll find enough informations on the Internet about why BMS are important). | You don't have to forget about adding a BMS (Battery Management System) to the battery pack, to preserve the battery life (you'll find enough informations on the Internet about why BMS are important). | ||
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| During the tests, I've just attached the battery pack with black tape. It's Mad Max style but it's OK for the tests ! | During the tests, I've just attached the battery pack with black tape. It's Mad Max style but it's OK for the tests ! | ||
| - | {{ :ebike:img_20171015_134223.jpg?800 |}} | + | {{ :ebike:img_20171015_134223.jpg?600 |}} |
| On this early first version, I've adapted a brushed DC motor of 2kW to the wheel with 3D printing parts. But that was not a good idea. The motor was quite cheap, and that was difficult to put the chain in the right place. | On this early first version, I've adapted a brushed DC motor of 2kW to the wheel with 3D printing parts. But that was not a good idea. The motor was quite cheap, and that was difficult to put the chain in the right place. | ||
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| So, after that, I've bought a wheel with a brushless motor inside, and the result is much more better : | So, after that, I've bought a wheel with a brushless motor inside, and the result is much more better : | ||
| - | {{ :ebike:img_20171119_194858.jpg?800 |}} | + | {{ :ebike:img_20171119_194858.jpg?600 |}} |
| It's well integrated now. | It's well integrated now. | ||
| Line 58: | Line 58: | ||
| {{ :ebike:img_20171113_174723.jpg?600 |}} | {{ :ebike:img_20171113_174723.jpg?600 |}} | ||
| - | {{ :ebike:img_20171119_194858.jpg?800 |}} | + | {{ :ebike:img_20171119_194858.jpg?600 |}} |
| + | |||
| + | ===== Results and tests ===== | ||
| + | As I've said, the brushed DC motor wasn't a good idea and burned out quite quickly. | ||
| + | |||
| + | After the installation of the brushless wheel, the results are very good. | ||
| + | |||
| + | The max speed I was able to reach is about 62-63 km/h on flat roads. | ||
| + | |||
| + | The range is about 200km with pedal assist set to 1 (minimal consumption, you need to pedal but without sweating you can reach 25-27 km/h. | ||
| + | |||
| + | If you go without pedal assist (just with throttle, like a bike and going beetween 55-60 km/h, the range is reduced to about 60km (1 hour in fact). | ||
| + | |||
| + | So, very good project, the global cost was about 700€, without the bike I already had. | ||
ebike/ebikev1.1568014177.txt.gz · Last modified: 2019/09/09 09:29 by f4ija
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