|
|
Design to be selected from: 1. Eltreco Storm / FJTDE05 CRANE 500W/ Changzhou Fujiang Vehicle Co., Ltd. 2. Eltreco Air Volt 3. Charge 1000W 4. Stealth Bomber 5. Ebco Eagle Lifestyle LSL-50 6. Grace One City |
|
|
Frame: shoud have volume to keep inside: 1. wires 2. batteries 3. electronics |
|
|
Battery: capacity: 20Ah type: LiFePo4 potential: 48v Elements: 1 el 3.2v 10Ah 290g 20USD 1 element 3.7v 4Ah 38g 11USD 3.7V*13pcs=48V 3Ah*7pcs=21Ah quantity of elements =13*7=91pcs / 920USD 1 element 3.2v 10Ah model 38120 15USD 16*2=32pcs / 480USD 1 element 3.2v 2.5Ah model 26650 6USD 15*8=120pcs / 720USD 40152S 3.2V 15Ah 30UDS 16pcs = 480USD Assemly: 48V 20Ah 9kg 260x150x150mm |
|
|
Solar power panels: 1. wheels (both sides) 2. frame cover (both sides) |
|
|
1st bought: EcoBike x7 (Hammer replica) 26" wheel 52mm wide tyre 500W 48V 320RPM rear hub motor 8Ah 48V battery inside frame 22650M, with DC-DC converter to 5V USB controller 22A-max 11A-normal 39V-min throttle 1.2-4.4.V 48V with King-Meter J-LCD + 3button nominal 500W , maximum 1000W |
|
|
Mods to be done: 1. More powerful programmable controller , 48V 2000W , with reverse 2. Extend battery to 12-15Ah LiFePo4 3. Add handelbar buttons for Lights + horn + turn's 4. Add alarm with GPS control 5. Add handlebar panel with: 5.1. headlamp from 10W 1kLm 5.2. turn signals, 5.3. daylights blinking, 5.4. LCD with touchscreen, 5.5. ignition lock 5.6. horn 6. unlock speed limit |
|
|
lights_FR.JPG (232,825 bytes) |
|
|
Measured speed: max 40 km/h Measured distance: max 25 km Measured wheel: D f=670mm (25.4mm*26"=660mm) D d=570mm (ISO 559mm) perimeter is: 3.14*.67 = 2.1m one round From motor specification: 320RPM*60M/H=19200RPH 19200RPH * 2.1m = 40KMH max speed this is very near test result spoke front: 2.0mm (14G), nipple 3.2mm spoke rear 2.5mm (12G), nipple 4.0mm brake disk 160mm both |
|
|
Done: burned DC-DC converter for 5V (USB port), replaced with 12V 3A DC-DC converter, soldered to pin # 3. Current piout of battery: 1. +48V (41V to 55V) 2. +48V (41V to 55V) 3. +12V 4. GND 5. GND |
|
|
Purchased rear lights from motorcycle. It has 4 LED in: parking - has button on handlebar, the same as front headlamp stop - need level conversion from 48V left - has button on handlebar right - has button on handlebar |
|
|
Purchased second battery "48V12AH" bottle has 4 levels with 13 cells in each 18650 3.7V, so each cell must be 3AH, but it has no label and looks like regular 2600mAh one, so expect real capacity of this assembly 10AH. |
|
|
Useful external body area for battery cover is: L=310mm H=115mm W=75mm U-shape battery expected, 4 rows (66mm*4=264mm) by 13 pcs (18mm*13=234mm) = 52pcs area allows to do by 18pcs = 72pcs, but we reduce to 65pcs and leave top place in last row for BMS. |
- Anonymous