TC8642 two phase hybrid stepping motor drive card ,suit for various electric platforms

TC8642 two phase hybrid stepping motor drive card ,suit for various electric platforms
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QSMOTOR 4000W 273 50H V3 BLDC electric car hub motor hybrid


conversion kits with 400A Controller



The Electric Car Kit includes most of things needed (except battery/charger) to convert your standard car into a top-of-the-line performance electric car, which delivers unequaled performance and reliability. 
You\'ll be out cruising along at approx. 60-90kph speed.



Key feature:

1. Simplify to make a electric-car. Gearbox, transmission shaft, clutch are no need. Which save space.

2. It could be installed in wheels, and easy to be hybrid car.

3. 2wd, it could be 72V 90KPH, 2*266N.m peak torque.

    4wd, it could be 72V 90KPH, 4*266N.m peak torque.

4. Easily to make 4-wheel drive, which could spot turn. 

5. Support regenerative braking

6. High efficiency: 85~92%



1. Battery and charger are not included in package.
2. The battery voltage depends on your application. (72-120V)

Package Includes:

2x 273 4000W 273 40H V3 E-Car Hub Motor

2x KLS7250H Controller

1x Throttle Pedal

1x X8-E Speedometer

1x 04type 1 tow 2 Hydraulic Disc brake system (with disc brake plate)

Production Description:


1. QS Motor 4000 273 40H V3 E-Car Hub Motor

  • Motor Type: BLDC Permanent Magnet Outer Rotor In-Wheel Hub Motor With Hall Sensor
  • Brand: QS Motor,QSMOTOR
  • Motor Design: Singleh axle without rim 
  • Matched Wheel: ≥14inch Car Wheel, PCD customizable, CB ≥60mm (PCD 5*112mm, CB60mm as default)
  • Magnet Height: 40mm, 16 pole pairs
  • Stator: Aluminmum Core
  • Rated Power: 4000W (8kW peak in few seconds) 
  • Rated Voltage: 48V as default (48V-144V, optional)
  • Speed: 80KPH as default (24-90KPH, optional) 
  • kV:11.46/143.54/15.69/17.71 etc.
  • Max Torque: approx 266N.m
  • Max Efficiency: 86-91%
  • Continuous Battery Current: 104A (48V)
  • Peak Battery Current: 210A (48V)
  • Suggest Peak Phase Current: 228-530A
  • Thermic Probe: KTY83/122 (as default, optional)
  • Working Temperature: 70-120℃ , peak 150 ℃ 
  • Brake type: Disc brake, PCD3*80mm-M8, CB 58mm(as default)
  • Dual Hall Set with waterproof connectors
  • 10mm² Cross Section of Phase Wire (not include insulation layer)
  • Hall Sensor Phasing angle: 120 degree
  • Waterproof Grade: IP54
  • Color: Black 
  • N.W./G.W.: 23.0kg/24.7kg   
  • Package Dimension: 43cm*43cm*34cm/piec 

PS. Normal Disc brakes is PCD3*80mm, PCD 58mm. It might get loose during driving, so we open new mold to be PCD4*114.3mm, M12.


Winding Information for 273 40H Motor:

273 40


2. KLS7250H, 24V-96V, 400A, Sinusoidal BLDC Motor Controller 

  • General Spec .:
  • 1. Programable, support regenerative braking
  • 2. Include function Cable, RS232 daptor, USB to RS232 connector
  • •Configurable battery voltage range, B+. Max operating range: 18V to 90V.
  • •Motor Current Limit, 10 seconds boost: 400A.
  • •Motor Current Limit, continuous: 160A
  • IP66+Fuse+better performace in termal dissipation


3. 0-5V Electric Car Throttle Pedal

  • Throttle Pedal Hall type : JKH model (match with our motor & controller)
  • Input voltage: 5V 12V 15V 24V 36V 48V 60V 72V 84V 96V 120V
  • Output voltage: 0-5V5-0V1-4.2V4.2-1V0-10V10-0V
  • Deafult: 5v input voltage (depends on controller design, for our matched controllers, you can choose 5v input voltage), 0-5v output voltage.


4. 48-100V Programmable Electric Car Speedometer

  • Rated Voltage:48V-144V ProgrammableShow Time, driving distance, speed, voltage, electric quantityTest Speed Type: Hall Sensor

5. 1 tow 2 Hydraulic Disc brake system (with disc brake plate)

  • 04 dayang left & right 38mm piston caliper with mechanical parking brake (pull type)
  • hydraulic service brake by foot
  • pitch of mounting 80 & 103mm
  • hoses 220cm + 2 x 80cm
  • T-shape hose connector
  • mechanical parking brake cable 95cm + 2 x 115cm (optional)
  • 220mm disc brake plate and screws (PCD 3*80mm, CB58mm, thicknees 4mm)
  • Suitable for QS Motor 273 Single Shaft Hub Motors

1 tow 2



No QS Motor, No Super EVs!