Bicycle torque sensor
It achieves automatic matching between manpower and power, and drives the electric car to rotate together. At present, the most powerful power-assisted sensor is a mid-axis bilateral torque sensor. Its product features are capable of collecting the pedaling forces on both sides, and adopts a non-contact electromagnetic signal acquisition method, thereby improving the accuracy and reliability of signal acquisition.
Motor
The most important accessory for an electric bicycle is the electric motor. The electric motor of an electric bicycle basically determines the performance and grade of the electric bicycle. The electric motors used in electric bicycles are mostly high-efficiency rare earth permanent magnet motors, among which there are three types of high-speed brushed teeth + wheel reducer motors, low-speed brush motors and low-speed brushless motors.
A motor is a component that converts battery power into mechanical energy and drives the electric wheel to rotate. There are many types of motors used in electric vehicles, such as the mechanical structure, the range of speeds, and the form of energization. Common ones are: brushed gear hub motor, brushless gearless hub motor, brushless gearless hub motor, brushless gear hub motor, high disk motor, side-mounted motor, etc.
Lamps and meters
The luminaire and instrument section are a combination of components that provide illumination and display the status of the electric vehicle. The meter generally provides battery voltage display, vehicle speed display, riding status display, and lamp status display. Intelligent meters can also display fault conditions in the electrical components of the vehicle.
Common structure
Most electric bicycles use a hub-type motor to directly drive the front or rear wheels. These hub-type motors are matched with wheels of different wheel diameters according to different output speeds to drive the whole vehicle at a speed of up to 20km/h. Although the shape of these electric vehicles is not the same as the installation position of the battery, the driving and control principles are common. This type of electric bicycle is the mainstream in electric vehicle products.
Specially constructed electric bicycle
A small number of electric vehicles are driven by non-wheel hub motors. These electric vehicles use side-mounted or columnar motors, center-mounted motors, and friction tire motors. Generally, such an electric motor driven by the motor has a reduced overall weight, and the motor efficiency is lower than that of the hub. In the case of the same battery energy, the vehicle using these motors will generally be reduced by 5%-10% compared to the wheel-type vehicle.