What is Lithium Battery Electric Bicycle?

Charger

Charger is the battery to replenish the device, generally divided into two stages charging mode and three stages. Phase 2 charging mode: First constant voltage charging, charging current gradually decreases with the increase of battery voltage, and when the battery power is replenished to a certain extent, the battery voltage will rise to the set value of the charger, which will then be converted to trickle-down charging. Three-stage charging mode: When charging begins, the constant current is charged first to quickly replenish the battery; When the battery voltage rises, it turns into constant voltage charging. At this time, the battery energy is slowly replenished and the battery voltage continues to rise. When the charging termination voltage value of the charger is reached, it is turned into a trickle charge to maintain the battery and the self-discharge current supplied to the battery.

Battery

Battery is an electric vehicle energy, lithium-ion battery electric vehicle is the latest type of lithium-ion battery.

Use prompt: controller control board for the electric main circuit, with a large working current, will emit a large amount of heat. Therefore, electric vehicles should not be parked in the sun exposure, and do not long rain, lest the controller failure.

1. Batteries that are below the average wholesale price in the market will not be bought.

2. Products that have not passed the market test for more than 2 years.

3. No electric car manufacturers will not buy batteries.

4. High-priced batteries, if not produced by large factories, firmly do not buy.

5. Change the national standard size of the battery will not buy.

6.5 A discharge, the voltage is higher than 12.68 V at 30 seconds, and more than 90 % is a short-lived battery.

The simplest way to detect the battery: 5A discharge, voltage below 12.63 at 30 seconds, the first 3 voltage does not drop, the more anti-rise, the better the quality.

Controller

The controller is the part that controls the motor speed, and is also the core of the electric system of electric vehicle. It has the function of undervoltage, limit or overflow protection. The intelligent controller also has a variety of riding modes and self-inspection functions of the electric parts of the vehicle. The controller is the core part of electric vehicle energy management and various control signal processing.

Turn, brake.

Switching handles, gate handles, etc. are signal input components of the controller. The turning signal is the driving signal of the electric motor rotation. The switch signal is an electrical signal that outputs the internal electronic circuit to the controller when the electric vehicle brakes; When the controller receives this signal, it will cut off the power supply to the motor, thus realizing the braking and power outage function.

A power sensor

The power sensor is a device that detects the speed signal of the cycling pedaling force when the electric vehicle is in the power state. The controller drives the electric vehicle rotation according to the electric drive power to achieve the automatic matching of manpower and power.

Electric motor

The most important part of an electric bicycle is the motor. The motor of an electric bicycle basically determines the performance and grade of the car. Most of the motors used in electric bicycles today are highly efficient rare earth permanent magnet Motors. Among them, there are three types: high-speed brush + gear reduction motor, low-speed brush motor and low-speed brushless motor. At present, high-speed brush + gear reduction motor performance is the best. The price is also expensive; The low-speed brush machine is cheaper, but the performance is worse; Brushless motor because of the high quality requirements for controllers, not many brands listed, the average consumer is best to choose a brand.

(Enda Lithium Electric Bicycle) We know that electric bikes are special bicycles that use electrical energy such as batteries and lithium batteries as auxiliary energy sources. They have two wheels and can achieve human cycling, electric or electric driving functions.

The motor is a part that converts battery power into mechanical energy and drives the rotation of electric wheels. There are many kinds of electric motors used in electric vehicles, their mechanical structure, speed range and power generation. Common are: brush with gear hub motor, brush without gear hub motor, brush without gear hub motor, brush without gear hub motor, high disk motor, side hanging motor and so on.

Use tip: when charging. Keep the charger well ventilated. If you smell a bad smell during charging or if the charger case is too hot, stop charging immediately, check and process.

Lamps, meters

The lamp and instrument part is a combination of components that provide lighting and show the state of the electric vehicle. The meter generally provides battery voltage display, vehicle speed display, cycling status display, lamp status display and so on. The intelligent instrument can also show the breakdown of various electrical parts of the vehicle.

Common Structure

Most electric bicycles use hub motors to directly drive the front or rear wheels to rotate. Depending on the output speed, these hub motors are matched with wheels of different diameters to drive the vehicle at a speed of up to 20km/h. Although the shape of these electric vehicles and battery installation locations are not the same, but there are common driving and control principles. This type of electric bicycle is the mainstream of electric vehicle products today.

A specially constructed electric bicycle

A small number of electric vehicles are driven by non-hub Motors. These electric vehicles use side-mounted or columnar Motors, mid-mounted Motors, and friction tire Motors. Generally using this kind of motor driven electric vehicle, the weight of the vehicle will be reduced, and the motor efficiency is lower than that of the hub type. With the same battery energy, the entire vehicle using these motors will generally be 5 % -10 % shorter than the hub range.

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