History of torque bldc motor controller
The late 1850s, the initial low-speed torque bldc motor controller is a pump stator and rotor components evolved, this component consists of a ring gear and one with matching gear or rotor component. The fixed ring gear and the shell can be connected together, the oil from the port into a center to promote the revolution around the rotor. This slow rotation of the rotor drive shaft through the splined output as cycloid bldc motor . This after the advent of the first cycloid motor, after decades of evolution, another conception of the motor began to form. This motor is installed in a built-in ring roller. With roller motor provides high starting and running torque, roller reduces friction, thereby improving efficiency, even at very low speed output axis can produce a stable output. By changing the input and output flows in the direction of the motor to quickly change, and such values in both directions of torque. The series of motors have a variety of displacement were selected to meet a variety of speed and torque requirements.
Monthly Archives: December 2021 - Page 2
History of torque bldc motor controller
My 26 inch rear electric hub motor kit works
Q: Received my 26 inch rear electric bike kit. Finally managed to get it all working. The LCD display does not go over 20 mph ? Can you think why？
A: Do you make you hub motor “reverse”?
* If you make the three button switch to be “R”, bike motor will be reverse, the speed is slow. Make to “L”, bike motor will be forward.
Q:I have disconnected the three button switch and now seems to be working. The display when the ebike is in use does not go above 20 mph. does the display after you have set the mph/kmh mean ? It says p1, p2,p3,p4 and p5. What are the correct settings for these ?
A:Your electric bike kit can reach 40 mph without load, we test it. Even if you ride, still can reach about 35mph.
Please set the wheel size to be “26” It’s wheel size.
* Power on, turn on LCD, then press “up” and “down” button for 2 second together.
1. Then max speed will flashing. Make it to be max 72kmh.
2. Then “kmh or mph” will flashing. Press “up” or “down” to shift from “kmh” to “mph”. Then press “ON /in the middle of button” to done setting.
3. Then “wheel size,8,10,12,14,16,18,22,24,26,700 or 28” will flashing. Press “up” or “down” to shift. Make it to be “26” Then press “ON /in the middle of button” to done setting.
* After setting these 1,2,3. Then press “ON /in the middle of button” for 2 second. It will save these setting.
* After setting these 1,2,3.Then press “UP” and “Down” switches. Then start to set P1,P2,P3..
Don’t set P1,P2,P3,P4,P5
If make a mistake.
Please set it as below:
P1:46 (This hub motor has 46 pcs magnet,can’t set to other,it’s used to display correct speed)
P2:0 (That is low speed motor — without gears inside motor)
P3:1 (With pedal assist)
P4:0 (Start from 0 speed)
P5:15 (24V be 9; 36V be 12; 48V be 15)
Q: Great. After setting this P1, the hub motor works well. Correct, 40mph. Nice electric bike kit.
20 inch 1000watt or 1500watt front electric hub motor kit
Q: I want to purchase a 20 inch electric bike kit front wheel for my rickshaw, I only ride it with my twin boys they are 3 years old. I obviously don’t want anything with a great top speed I and simply looking for some assistance on hills.From your 1000 watt hub motor wheels listed, it looks like your older design model has a top speed of 30mph so I am thinking that probably has the best gearing not the newer version which show 45mph. The 1500 watt hub motor motor appeals but again same thing only shows with high top speed 45mph…Can you please suggest the best front wheel electric bike kit for me. It has to be 20″ and
has a standard 100mm wide fork.
A: Our new version hub motor also have low speed. Also 1500w motor has low speed.You just tell us what speed would you like, we can do it for you.Our 20 inch front hub motor is fit for 100mm wide fork. Also we have 1500w front.
Q: then I would prefer to order the 1500watt hub motor, do you offer that in the 20 inch with cast hub or only spokes as can’t see 1500watt with cast hub listed. I assume the cast hub would be stronger than the spoke version and therefore better for rickshaw.
A: We have 20 inch spokes 1000w & 1500w front hub motor.We have these motors in stock.But caste hub,only 1000w,don’t have 1500 casted hub.
Q: I am still keen to go with the 1500 hub motor but the spoke version is has quite a narrow rim.I don’t suppose you could fit it with a wider rim, so I can use a 2 1/4″ or 2 1/2″ tyre or bigger would be now problem if you have them.Your standard rim states 1.5 – 1.95″ tyre which is a little small I want use a moped tyre because of weight on rickshaw and they are mostly all bigger than your standard rim.
Technical problem with a 20 inch 48V 1000W bike kit – problem solved
Today I hit in a technical problem with the 20inch 48V 1000W bike conversion kit (Item ID:#LBCK20481000FN). I was riding for a shorter distance steep uphill in level 5 and suddenly the bike motor was making an obscure humming sound and was vibrating very strong. So I stopped immediately and shut down the system. I checked the hub motor and the cable for overheating but they where just with normal temperature. After a while, I already turned to go back downhill, I started the system again but the problem still exists. It seems that it is maybe a problem with the controller because now there is no reaction in changing the power level (1-5) or turning the throttle on. The hub motor gets only around 10 Amps with a max. of 590W (measured with a installed Amp/Volt meter in between). When starting pedaling or with the throttle with low speed the vibrations are immense but when I gain more speed the vibrations are reducing to a lower level but they are still there. When staying still and pull the throttle full, so the tire normally can spin free, only the vibrations and a loud humming sound exists. I know I do not have any warranty more leftover on this system but maybe you have an idea how I can repair this for a budget price.
I already solved the bike conversion kit system problem.
Funny what unexpected small things could cause some different technical reactions. The problem of the bike conversion kit problem above was, that one of the 3 phase cables to the motor was broken. By the effect of the depicted problems above I really thought that something in the controller was burnt-out but happily I could find the broken cable very soon so now everything
works fine again.
Buy an electric hub motor kit
I’m very interested in buying an electric bike kit as soon as possible for my bicycle (26 inch rim )and I found your page but I would like to know about all the models you’ve got from the smallest to the biggest and strongest ;and THE PRICES of these and all the specifications:
speed (km/h)
torque
durability
distance of charge
weight (of the electric bike kit)
weight (it can carry)
does it come with battery what type of battery (lithium ,lead)
voltage
amperage
watts
rims what type of rim
I’m not really interested in the rim (inch)but some info would be good ,I want to find out about these brushless hub motor
I need something that lasts 70 km and runs at 60 km/h on a flat surface with lots of power like to move 150-180kg of weight (bicycle me, hub motor, and a little extra weight)
what does the electric bike kit include?:hub motor battery controller throttle, brake lever, pedal sensor BATTERY MEASURE etc.
and what combinations can the electric bike kit fit 36v – 48v – 24v -6,7,8,9,10 amps if possible
the same for the rear motor and for the front hub motor
(front rear) sizes, types ,performances PRICES and everything they can do the thing is that I live in wide mountains so I need something strong but lasting for I live far away of the city.
27.5 inch 48V / 52V 1000W rear electric hub motor – 650B bike conversion kit
* The conversion 27.5 inch bike motor kit combines the full E-bike technology: direct drive Brushless Gearless high torque hub Motor to change almost every bicycle into a personal electric bike. Save energy, protect environment and save money with a lot of fun.
* Saving 10% of electricity, Improve the efficiency of 8% With The Newest Materials Steel Rotor.
Main Features:
>. Rim: 27.5 inch / 650B double wall Alloy
>. Spoke: 12 gauge / 164mm Length × 36 pcs
>. Engine: Bldc hub motor
>>. Voltage: 48V
>>. Power: 1000W
>>. Efficiency: 90.5%
>>. Max speed: 71 kmh — 45mph
>>. Mechanical brake: Disk or V
>>. Freewheel / Cassette: space for 6 or 7 gears
Default: install screw thread Sprocket (If install Cassette Sprocket,please leave message)
>>. Cable location: shaft end , LEFT
>>. Cable length:100cm / 40″
>>. Install: spacing of 135mm fork
>>. Noise: < 60 db
>>. Surface: Black painted
>. Driver: brushless controller
>>. MOSFET: 12 PCS
>>. With LCD: YES
>>. Rated Voltage: DC 48 Volts
>>. Min. Voltage: DC 40 ± 0.5 V
>>. Rated power: 1000 Watts
>>. Casing material: aluminium
>>. Maximum Current: 26 A ± 1 Amps
>>. Thermal: aluminum shell and the substrate
>>. 3 phase 120° brushless motor
>>. Operating Conditions: -20~45 °C
>>. Waterproof design
>>. Size: 171 mm L × 82 mm W × 42 mm H
Updated LCD , More Function:
* Cruise
* Forward & Rackward (Optional)
* Regen brake
* Kmh & mph (Optional)
* Set Max speed ( 0 ~ 72 kmh / 45 mph )
* Pedal assist ( 1 – 5 )
* Temperature
* Motor power
* Timer
* Battery gauge
* …
Package Content:
1 x 27.5 inch / 650B 48V 1000W rear hub motor wheel
1 x 48V 1000W 12-MOSFET motor controller
1 x LCD ( display speed, mileage, battery gauge.. )
1 x Twist throttle — Cable length: 1500mm
1 x Brake levers — Cable length: 1500mm
1 x Three button switches ( control cruise, regen brake, reverse .. ) — Cable length: 1500mm
1 x Pedal assist — Cable length: 1500mm
Net Weight: 24.5 lbs
Package Size: 58cm L × 23cm W × 58cm H / 22.8″ L x 9.0″ W x 22.8″ H
Package Type: Cardboard Box
26 inch electric hub motor kit for the dropout 160mm fork
Q: Are you able to supply a rear hub motor kit wheel (36v @ 500W – 750w) for a rear dropout of 160mm?
I have an existing e-bike that uses a 250w geared rear hub drive on a 26 x 1.95 wheel.
It has a 7 speed gear, standard 160mm disk brake and a bike mount (frame) width of 160mm.
I would be happy to go from a geared (small hub) to the larger electric bike motor kit type.
The existing bike frame is steel (not carbon or an alloy) so I may be able to ‘bend’ the rear forks… (fit).
I have included a PDF diagram (attached) to show the existing rear hub motor fitting size.
A: Yes, we have dropout of 160mm 36V 750W electric bike motor.
Q: With the new Leaf controller and LCD, I know I can limit the maximum output speed of the 750w Direct Drive hub motor to a set (safe) maximum speed for each PAS mode 1 – 5.
With our Australian laws, I want to honor speed and safety – yet have a safe speed and torque (reserved) for hills.
I respect that you have kindly supplied my order with a 320RPM hub motor ( a good choice).
My question is: “Does the max speed by set by LCD / Controller economically limit the maximum current sent to the hub motor”?
I am talking here about battery life with a low speed LCD / Controller setting ‘modulating’ the full power sent to the hub motor.
So if I program the setting to say 25Km/h, then is the torque output effected at speeds less than the given 25Km/h?
A: Yes, if you set max 25kmh by LCD, motor will work less than 25kmh.(You can set max 10kmh,11kmh,12kmh….48kmh,49kmh,50kmh)
1.Press “SW” from LCD. Turn on LCD
2.Press “up” &”down” together for more than 2 seconds in 3 seconds after LCD display – Then “72” will flash.
3.Press “down” or “up” to set any max speed. Press “SW” one time to save. Then “26” will flash. It’s tire size. Don’t set. Still press “SW” one time to save. Then “kmh / mph” will flash. Don’t set. Press “SW” one time to save.
4.At last, press “SW” more than 2 seconds, then will be back.
There is a Three button switch inside parcel.
** Black switch (be Left side / Middle – motor works forward. Be right side, motor works backward/reverse)
** Red switch (Be left side / regen off. Be right side / regen on)
** Green switch ( When motor is working, press this green switch one time. LCD is display C, motor will work as the same speed) – Re-press this green switch one time, or press brake lever, turn throttle to max, motor will stop.
bldc motor controller and its classification and criteria
bldc motor controller and its classification and criteria:
bldc motor controller is mainly linear motor, it is a direct conversion of electrical energy to mechanical energy into linear motion, without any intermediate conversion mechanism of transmission.
bldc motor controller structure can be made as needed Flat, cylindrical or disk-based and other types, it can use AC power, DC power supply or other pulsed power supply to work. bldc motor controller can be in a few seconds to a few thousand kilograms of helicopter pulled several hundred kilometers per hour, it operate in a vacuum, its highest speed up to several thousand kilometers. In the military, people use it made of a variety of guns, and tried it for missiles, rockets; in the transport industry, people use bldc motor controller is made up of more than 500km per hour maglev train; in the industrial area, bldc motor controller is used in the production line for delivery, and a variety of horizontal or vertical movement of a number of mechanical devices. bldc motor controller and have a high-speed, high-thrust features, it also has a low speed, the other fine features, for example, stepping linear motors, it can be done step for the 1μn accuracy, therefore, bldc motor controller has been applied to Many sophisticated equipment, such as the computer’s head drive, camera shutter, automatic plotter, medical equipment, aerospace equipment, a variety of automation equipment, etc. In addition, bldc motor controller is also used for a variety of civilian installations, such as doors, windows, tables, chairs moving, door locks, electric curtains opening and closing, and so on.
S mine fan bldc motor three frequency high-voltage electric tricycle china application
S mine fan bldc motor three frequency high-voltage electric tricycle china application
Author: Xu Yingsheng Wang Jihao Sunyan Bo Gu Wei
Abstract: A crystal by controlling the frequency control to achieve a level, no level adjustment in the electric tricycle china installation and large-scale mine owners bldc motor in the application.
Keywords: three-conversion,electric tricycle china installation
Specificity due to the production of coal, the mine ventilation system related to mine safety in production, so the ventilation system in the coal production has a pivotal position. As long supply line, starting pressure drop, maximum protection devices for safe and reliable start-up and standby bldc motor starter switch, the top priority is to enhance the system reliability. Yangquan Coal Mine in NZ in November 2006, new investment and operation of the main fan bldc motor for the GAF-type axial bldc motor (check the bldc motor by the largest coal mine in Asia through bldc motor controller). The main fan motor 10KV 5000KW bldc motor asynchronous motor. In order to better address the project encountered in starting the impact on the grid, and the problem of load impact, the system used by the Liaoning Rongxin Power Electronic Co., Ltd production of three self-developed high-voltage electric tricycle china frequency equipment.
1, electric tricycle china several Starting device
Divided by the motor starter schematic: 1, reduced voltage starting methods. Traditional vacuum motor starting methods are Y-Δ start, decompression starting autotransformer, reactor start-up and so on. These methods belong to a class start decompression start, there are obvious shortcomings, the process of starting a secondary impact of current. The current high-pressure common way for liquid resistance starter starter, SCR series decompression start. 2, variable frequency start method. With the development of IGBT technology, high frequency voltage levels and larger capacities, but because of the price factor has restricted its development.
Rongxin Power Electronic Co., Ltd., on the basis of the SVC successfully developed three high frequency electric tricycle china, it has three characteristic frequency stepless regulator.
2, three frequency high-voltage electric tricycle china technical principles and characteristics
High-voltage soft-start power supply and motor in series between the main circuit shown in Figure 1.
Figure 1 Main circuit diagram
Three frequency high-voltage soft-start technology, the first SCR in series, then by controlling the conduction angle of SCR to achieve a level FM, and non-polar voltage regulator functions. Starting early by controlling the valve in the SA, SB, SC was to achieve a turn-on frequency 12.5HZ, the motor of 1 / 4 the rated speed when the control valve SA, SD, SE switch to 25HZ, the motor to achieve 1 / 2 rated speed, through the control valve SA, SB, SC to complete the full range of the switching process, and ultimately reach the rated speed, the bypass is closed off electric tricycle china trigger pulse to complete the starting process. Throughout the starting process in the three frequency points, while adjusting the frequency, change the output voltage to maintain constant voltage to frequency ratio, so that you can ensure that the entire starting process, the starting torque to keep the rated torque of 80 -90%, while the starting current can be controlled at about 2 times the rated current. Starting torque, starting current, is a three-frequency high-voltage electric tricycle china’s largest technical characteristics.
3, S miners fan motor in the practical application.
Yangquan Coal Mine S is a new mine, it’s power capacity is 35KV, 10000KVA, because the grid is responsible for the underground, Inoue electrical equipment supply, so the grid is relatively small margin, in order to ensure the process does not affect the start Other devices running on the main fan starting current requirements are very strict. And because it is located in the high-gas area, which uses negative pressure was high winds axial bldc motor (two-stage fan is currently Asia’s largest mining axial bldc motor), the main fan motor power of 10KV, 5000KW. Throughout the starting process, showing the starting torque, starting current, a smooth start, the advantages of starting a short time. Measured data in Table 1.
measure electric bike hub motor hall sensors
Bike motor controller is fine, they all got 4.9~5.0 from meter reading. We will open and check the hub motor after work. We are more worried about if the electric bike motor itself is damaged.
Could you get the below data:
1. Remove this white biggest plug, power on and measure volt of white biggest from brushless motor controller.
Red, Black, blue, green and yellow
1.Red and black is about 4.9V
2.Blue and black is about 4.9V
3.Green and black is about 4.9V
4.Yellow and black is about 4.9V
If you can get the data, the bldc motor controller is okay.
LCD always display “05 flashing”.
The issue comes from electric bike motor hall.(five wire: red, black, green, blue and yellow)
Could you check this five wires whether through?
This is a instruction about how to disconnect this hub motor.
It takes about 10 minutes to disconnect.
You will find a PCB around the rotor-winding. There are five wires (red, black, green, blue and yellow) are on this PCB.
I removed both panel on hub motor and did a quick test. All the thin wire looks fine. They can go through from both side. But the thick wire connect to enameled wire that I can’t test since they been wrapped up.
If Not flashing. Then it will work.
Could you get below data from electric bike motor hall sensor?
Three are three hall sensors around rotor winding.
For example:
hall 1 Green (pin 1.1 pin 1.2 pin 1.3)
hall 2 Yellow (pin 2.1 pin 2.2 pin 2.3)
hall 3 Blue (pin 3.1 pin 3.2 pin 3.3)
Pin 1.1 ,pin 2.1 and pin 3.1 are connected to the red wire together.
Pin 2.1 ,pin 2.2 and pin 2.3 are connected to the black wire together.
Pin 1.3 is green,pin 2.3 is yellow,pin 3.3 is blue.
Volt meter Red Pin to Pin x.1 black Pin to x.2 (x=1,2,3)You will get below data:
Pin 1.1 and pin 1.2 is about 1.185 (see picture 5)
Pin 2.1 and pin 2.2 is about 1.185
Pin 3.1 and pin 3.2 is about 1.185
Volt meter Red Pin to Pin x.1 black Pin to x.3 (x=1,2,3)You will get below data:
Pin 1.1 and pin 1.3 is about 1.498 (see picture 4)
Pin 2.1 and pin 2.3 is about 1.498
Pin 3.1 and pin 3.3 is about 1.498
Volt meter Red Pin to Pin x.2 black Pin to x.3 (x=1,2,3)You will get below data:
Pin 1.2 and pin 1.3 is about .633 (see picture 6)
Pin 2.2 and pin 2.3 is about .633
Pin 3.2 and pin 3.3 is about .633
Another way to test hall sensor:
Connect all wires, power on.
Measure red, black, green, blue and yellow BLDC motor hall wires
1.Red and black is about 4.9V
2.Black and yellow is about 4.9 or 0V (Please use your hand to turn hub motor, the data will change from 4.9-0V)
3.Black and blue is about 4.9 or 0V (Please use your hand to turn hub motor, the data will change from 4.9-0V)
4.Black and green is about 0V or 4.9V (Please use your hand to turn hub motor, the data will change from 0V-4.9V)
If nothing is changed, this hall was broken.
How about the other black and red wire?
Only black or red wire can’t touch well or not go through, 05 will be always flashing.