The brushless motor drives the wheel through the gear through the motor shaft, so the space between the motor and the wheel is large. The brushed motor is that the motor directly drives the wheels with fewer operating links.
Motors are devices that convert electrical energy into mechanical energy. It uses the energized coil, the stator winding, to generate a rotating magnetic field and acts on the rotor squirrel-cage closed aluminum frame to form a magnetoelectric power rotation torque. When buying an electric bike with motor, we should not only look at the electric power parameter of the motor, but also whether the motor has brushes. From the name, it can be seen that brushed motors have carbon brushes, and brushless motors do not have carbon brushes.
Introduction of brushed motor ebike and brushless motor ebike
-
Brush motor electric bikes:
When working, the coil and commutator of the ebike brushed motor rotate, but the magnetic steel and carbon brush do not rotate. The alternating change of coil current direction is accomplished by commutator and motor brush of electric bicycle. The brushed motors in electric bicycles are divided into high-speed brushed motors and low-speed brushed motors.
-
Brushless motorelectric bikes:
The brushless ebike DC motor kit consists of a motor body and a driver, and is a typical mechatronic product. Since the brushless DC motor is self-controlled, it does not have a starting winding on the rotor, an electric bike motor attachment, and it will not produce oscillation or get out of step when the load changes suddenly. Ebike brush motor kits are traditional products with relatively stable performance.
The difference between ebike motor with brush and ebike brushless motor in use
-
Service life
The brushless motor electric bike can work continuously for about 20,000 hours, and the normal service life is 7-10 years.
The carbon brush motor electric bike can work continuously for about 5000 hours, and the normal service life is 2-3 years.
The mountain e bike brushless motor is an upgraded product, and its life performance is better than that of the brushed motor of e bike. However, its control circuit is relatively complicated, so the components of the brushless motor need to have relatively strong anti-aging ability. Although the e bike motor has a long service life, the control circuit is prone to failure. Therefore, the selection of brushless motors on mountain ebike must undergo strict reliability tests to ensure quality. However, with the continuous upgrading of technology, brushless motor for e bicycle technology has gradually matured.
-
The running speed
lThe brushless motor can run at a high speed of 90-95m/s.
lThe running speed of carbon brush motor is much lower than that of brushless motor.
Electric bicycle motors without brush have a longer service life than electric bicycle motors with brush, and can start vigorously and save power. The electric vehicle controller is the core control device used to control the start, operation, advance and retreat, speed, stop and other electronic devices of the electric mountian bicycle motor. It is like the brain of the ebike motor controller and an important part of the electric bike motor kit.
-
Energy saving effect
The operation of the brushed motor depends on the input of direct current, and the speed regulation can be realized by changing the magnitude of the current. The brushless motor is a three-phase AC ebike motor. It first needs to rely on the ebike controller to convert the DC power into three-phase AC power, and then rely on the sensor Hall element in the motor to commutate the three-phase AC power so that the motor of e bike can run normally.
-
Maintenance
Carbon brush motors on ebikes are easily damaged, and the maintenance cost is much higher.
Brushless motor on ebike is not easy to damage with low maintenance frequency and low maintaining cost.
The ebike brushed DC motor is a high-speed motor, and the gears are small, so it is easy to be worn out, but it has great power and strong climbing ability. The brushless ebike DC motor does not need brushes, which saves the cost of replacing carbon brushes in two or three years. However, in terms of controlling the cost of the motor, the e bike brushless motor requires extremely high precision, so the price of the brushless motor controller is relatively high. Brushless DC ebike motors need to replace the carbon brushes, whose cost is not high. Moreover, the brushless motor electric bicycle runs more smoothly and delivery a safer riding. As a result, the e mountain bike brushless motor is favored by more cyclists.
5. Conclusion
In general, the advantages of brushless ebike motors are more than those of brushed ebike motors: long service life, energy saving and environmental protection, fast speed, and easy maintenance.
Recommendations for brushless electric bicycles
DAYLYRIDE's electric bicycles all are equipped with brushless motors to ensure long life of the motors, save energy, not difficult to maintain, and have fast speed. Like DAYLYRIDE-DYS90: the combination of 1000w electric power and brushless can bring the speed of he to your riding.
- The max speed can realize up to 33 mph
- Easily go through all kinds of the rugged terrains and steep hills
Besides the powerful motor, the Antelpoe is a wonderful choice for electirc mountain bike because of its: Removable15AH Lithium Battery, LCD Colorful Display, Shimano Hydraulic Brakes, Aluminum Alloy Rear Saddle Suspension, Shimano 27 speed gear shift system, and 27.5"X2.4" CST Puncture-resistant Tire
