Why do sports electric motorcycles use mid-mounted motors?

There are two main motors for electric motorcycles
One is a mid-mounted motor and the other is a hub motor
Mid-mounted motor is to place the motor in the middle of the vehicle
The hub motor is to install the motor inside the hub barrel of the wheel
Different one: different driving methods

 

QQ截图20200909182900

The hub motor is usually installed inside the hub barrel of the rear wheel, and the coil is directly installed inside the wheel. After power on, the motor converts electrical energy into mechanical energy to drive the rear wheel to rotate and drive the vehicle forward. Simple and crude but effective.

The mid-mounted motor usually drives the rear wheels through a chain or gear drive to drive the vehicle forward. Normally, a mid-mounted motor of the same power can amplify the output torque with the help of a mechanical structure.

Different two: different heat dissipation efficiency

Since the in-wheel motor is directly installed on the wheel, it will inevitably generate some heat during the operation of the motor. Because there are tires on the outside, when the temperature rises to a certain level, the motor will “lower frequency” if it continues to run. That is to say, the speed cannot be increased, so electric vehicles with in-wheel motors usually cannot be high-speed for too long, and are not suitable for long-distance operation.

Since the motor is separated from the wheels and the outer layer has no tires, the middle motor can greatly improve the heat dissipation efficiency of the motor, so even if it is high-speed and long-distance, it will not easily drop in speed.

Difference 3: The center of gravity of the vehicle is different

Due to the installation position of the in-wheel motor, the rear shock absorber bears greater pressure during driving, and frequent vibration is also detrimental to the motor, and too strong vibration can also cause damage to the motor. If you want to increase the power of the in-wheel motor, you have higher requirements on the material and rocker arm of the vehicle.

Electric Motorcycle – Light Bee X

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The center of gravity of the mid-mounted motor is in the middle of the vehicle. Since the motor does not directly touch the ground, it is transmitted to the motor through a shock absorber during vibration. Therefore, the mid-mounted motor has better handling and stability on bumpy roads, due to the difference in the balance of the whole vehicle. , The power of the mid-mounted motor can be very large.
Different one: different driving methods

The hub motor is usually installed inside the hub barrel of the rear wheel, and the coil is directly installed inside the wheel. After power on, the motor converts electrical energy into mechanical energy to drive the rear wheel to rotate and drive the vehicle forward. Simple and crude but effective.

The mid-mounted motor usually drives the rear wheels through a chain or gear drive to drive the vehicle forward. Normally, a mid-mounted motor of the same power can amplify the output torque with the help of a mechanical structure.

Different two: different heat dissipation efficiency

Since the in-wheel motor is directly installed on the wheel, it will inevitably generate some heat during the operation of the motor. Because there are tires on the outside, when the temperature rises to a certain level, the motor will “lower frequency” if it continues to run. That is to say, the speed cannot be increased, so electric vehicles with in-wheel motors usually cannot be high-speed for too long, and are not suitable for long-distance operation.

Since the motor is separated from the wheels and the outer layer has no tires, the middle motor can greatly improve the heat dissipation efficiency of the motor, so even if it is high-speed and long-distance, it will not easily drop in speed.

Difference 3: The center of gravity of the vehicle is different

Due to the installation position of the in-wheel motor, the rear shock absorber bears greater pressure during driving, and frequent vibration is also detrimental to the motor, and too strong vibration can also cause damage to the motor. If you want to increase the power of the in-wheel motor, you have higher requirements on the material and rocker arm of the vehicle.

The center of gravity of the mid-mounted motor is in the middle of the vehicle. Since the motor does not directly touch the ground, it is transmitted to the motor through a shock absorber during vibration. Therefore, the mid-mounted motor has better handling and stability on bumpy roads, due to the difference in the balance of the whole vehicle. , The power of the mid-mounted motor can be very large.


Post time: Sep-10-2020