There is much talk about watts, volts, amps hours, watt-hours, battery capacity, reach , etc., but what does it really mean? It is also important to know the advantages and disadvantages of the electric motor and the battery placement. Engine All electric bikes have a small, modern electric motor that turns on and off when you pedal. You do not need to worry that the bike will run away from you. The engine stops help at 25 km / h, because this is provided by law. Elcykelmotorerna vary in voltage and power, and also in quality and price. The battery and the engine always has the same voltage. The maximum engine capacity of an electric bicycle is 250 W. Some engines have a higher power than 250 W at the start, but drops to 250 W for a few seconds. It gives better acceleration and you will quickly started.
Battery The engine in an electric bicycle is dependent on a source of power to produce power, just like a car’s combustion engine requires fuel. The battery is the engine’s power source and electricity is the “fuel”. Most batteries in electric bicycles today are based on lithium-ion technology, which makes them easy to load and use, and has little self-discharge.
Li-Ion batteries on electric bicycles as XXL selling withstand 600-1000 charging cycles and has a charge time of four to six hours. With the charge cycle means a full charge of a fully depleted battery. (Two fulladdningar of a half-full battery or three fulladdningar of a battery that is charged to two-thirds equivalent course also a charge cycle.)
Bike Light The control on the handlebars is the brain of the bike’s electrical system. It controls the engine power, and the display will often effect, remaining range, battery status, distance of the tour, total distance, speed, average speed, etc. Says Ebicyclelights, the bike light is either normal or LED type. LED is a little newer, sharper and more energy efficient solution than the normal light, otherwise it’s not much difference.The information displayed varies electric bicycles. In general, you can set how much help you want from the engine, with 3-6 steps on the controller.
Engine sensor to detect if the pedals are in motion or not, it sits a sensor on elcykeln. When the pedals move turned the engine normally on for up to a half turn. Motor runs until you stop pedaling or until the brakes.
Two different types of engine sensors used in electric bicycles:
-Speed sensor (speed sensor), which measures the speed elcykelns
-Torque sensor (torque sensor), which measures the torque
Usually sits engine speed sensor in the bicycle crankset, where the reading of the pedal movement. Normally, there is a delay from the time you step into the sensor detects that the pedals are in motion. Some electric bicycles equipped with a throttle in order to “compensate” for this delay. The speed sensor turns off the engine at a speed of 25 km / h, so this sensor has two tasks.This type of sensor is often a little cheaper bikes.
The torque sensor measures normally chain torque and reacts when the chain tightens. This means faster response and power from the first ball of a time, and the engine responds quickly in relation to the force you use, throughout the ride. The more you pedal, the more power from the engine, and vice versa, so the torque sensor is a bit “smarter”. On the rear wheel and center-mounted engines, the torque sensor integrated in the motor, with a speed sensor that shuts off the engine at 25 km / h. There is therefore a separate sensor for each task, which we XXL think is preferable. This type of sensor is usually used on more expensive bikes.
The brake sensor Some e-bikes also have a brake sensor, which disconnects the electric motor when braking. Sometimes there is also a sensor and solution for regenerating / charging during braking, but this is not very common.