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The Main Components Of Electric Bike

Issuing time:2021-04-28 10:56


A charger is a device that supplements electric energy to a battery, generally divided into two-stage charging mode and three-stage mode. Two-stage charging mode: first constant voltage charging, the charging current gradually decreases as the battery voltage rises, and after the battery power is replenished to a certain extent, the battery voltage will rise to the set value of the charger, at which time it is converted to trickle charging. Three-stage charging mode: at the beginning of charging, the battery is charged with a constant current to quickly recharge the battery; after the battery voltage rises, it is converted to constant voltage charging. At this time, the battery energy is slowly recharged, and the battery voltage continues to rise; the charger reaches the end of charging voltage When the value is reached, it is changed to trickle charge to maintain the battery and supply the self-discharge current of the battery.


The battery is an on-board energy that provides energy for electric vehicles. Electric vehicles mainly use a combination of lead-acid batteries. In addition, nickel-metal hydride batteries and lithium-ion batteries have also been used in some portable folding electric vehicles.

Tips: The main control board of the controller is the main circuit of the electric vehicle, which has a large working current and emits a large amount of heat. Therefore, do not park the electric car in the sun and expose it to rain for a long time to avoid malfunction of the controller.


The controller is a component that controls the speed of the motor and is the core of the electric system of the electric vehicle. It has undervoltage, current limiting or overcurrent protection functions. The intelligent controller also has multiple riding modes and a self-checking function for the electrical components of the vehicle. The controller is the core component of electric vehicle energy management and various control signal processing.

Rotary handle, brake handle

Rotary handle, brake handle, etc. are the signal input parts of the controller. The handlebar signal is the driving signal for the rotation of the electric vehicle motor. The brake lever signal is an electric signal output from the internal electronic circuit of the brake to the controller when the electric vehicle brakes; after the controller receives this signal, it will cut off the power supply to the motor, thereby achieving the brake power off function.

Boost sensor

The booster sensor is a device that detects the pedaling force back to the pedaling speed signal when the electric vehicle is in the assisting state. The controller is based on the electric drive power to

Bicycle torque sensor

To achieve automatic matching of manpower and electricity, and jointly drive the rotation of electric vehicles. At present, the most popular booster sensor is the double-axis torque sensor of the central axis. Its product features are the ability to collect the pedaling force on the left and right sides, and the non-contact electromagnetic signal acquisition method is used, thereby improving the accuracy and reliability of signal acquisition.


The most important accessory of an electric bicycle is a motor. The motor of an electric bicycle basically determines the performance and grade of this car. The motors used in electric bicycles are mostly high-efficiency rare-earth permanent magnet motors, which are mainly divided into three types: high-speed brush tooth + wheel reduction motor, low-speed brush motor and low-speed brushless motor.

The motor is a component that converts battery energy into mechanical energy to drive the electric wheels to rotate. There are many types of motors used in electric vehicles in terms of their mechanical structure, speed range and energization form. Common ones are: brushed geared hub motors, brushed gearless hub motors, brushless gearless hub motors, brushless geared hub motors, brushless geared hub motors, high-disk motors, side-mounted motors, etc.

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