What is the composition of lithium battery electric bicycle?

The composition of electric bicycle lithium battery 1, the charger The charger is a device for replenishing the battery, and is generally divided into a two-stage charging mode and a three-stage mode. Two-stage charging mode: First, constant voltage charging, the charging current gradually decreases with the rise of the battery voltage. After the battery power is replenished to a certain extent, the battery voltage will rise to the set value of the charger, and at this time, it will be converted to trickle charging. Three-stage charging mode: When charging starts, the constant current is charged first, and the battery is quickly replenished; when the battery voltage rises, it is converted to constant voltage charging. At this time, the battery energy is slowly replenished, and the battery voltage continues to rise; the charging end voltage of the charger is reached. When the value is changed, it is switched to trickle charge to maintain the self-discharge current of the battery and the supply battery. 2, the battery The battery is the on-board energy that provides the energy of the electric vehicle. The lithium battery electric vehicle uses the latest lithium-ion battery. Use tip: loop controller for electric main control board owners, with large working current, have a large quantity of heat. As a result, electric cars do not park in the sunlight, also don't get wet in the rain for a long time, so as to avoid controller is out of order. 3, the controller Controller is to control the motor speed, also is the core of the electric car electric system, has under voltage, current limiting or over-current protection function. Intelligent controller also has a variety of cycling self-check function model and vehicle electrical components. The controller is of various electric energy management and control the core component of signal processing. 4, turn to, and the brake Turn, brake handle is the controller of the signal input part. Turn the signals is rotating electric motor drive. Brake when the signal is when the electric brake, brake handle internal electronic circuit output to the controller of an electrical signal; After controller receives the signal, will cut off the power supply of motor, so as to realize the brake power function. 5, power sensor The booster sensor is a device that detects the riding pedal force back to the pedal speed signal when the electric vehicle is in the assist state. The controller automatically matches the manpower and electric power according to the electric driving power to jointly drive the electric vehicle to rotate. 6, motor Electric bicycle is the most important parts of the motor. An electric bicycle motor basic determines the performance of the car and grades. Today's electric bicycle motor is mostly used by high efficient rare earth permanent magnet motor, and points the mainly have among them brush + geared motor, brushless motors have brush motor at low speed and low speed three, now have brush + geared motor at high speed performance is the best, the price is expensive; Low speed with a brush motor to cheaper, but the performance is poor. Brushless motor due to the high quality requirements of controller, listed on the brand is not much, ordinary consumers to buy when had better choose brand. 7, lamps and lanterns, instrument Lamps and lanterns, instrument is to provide lighting and display the state of the electric parts. Instrumentation generally provides battery voltage display, vehicle speed, riding state display, lamps and lanterns state, etc. Intelligent instrument can also display failure condition of the vehicle electrical components. 8, 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 today's electric vehicle products. The page contains the contents of the machine translation.