Принцип регулювання швидкості та аналіз несправностей керма електровелосипеда

Structure and function of ebike handlebar

The inside of the ebike handlebar is mainly composed of magnets, Hall elements, reset springs, sensing lines and plastic housing.

The role of the magnet is to sense the speed signal through the action of the magnetic field, which in turn realizes the speed regulation and sends the speed value to the controller so that the e-bike can automatically adjust the speed.

The role of the Hall element is to detect the changes in the magnetic field, and the electrical signal generated after the change is transmitted to the e-bike controller, which judges the speed and direction of the bicycle accordingly and regulates the motor, thus realizing the speed control and driving direction control of the e-bike.

The function of the reset spring is to return the turnbuckle to the neutral or initial position so that the e-bike can function properly. The reset spring compresses or extends when the turnbuckle moves from the neutral or initial position, and when the user releases the turnbuckle, the reset spring returns the turnbuckle to the neutral or initial position. This is important to ensure the stability and safety of the e-bike and prevents malfunctions caused by the turnbuckle not returning to the neutral or initial position.

The function of the sensing line is to convert the position information of the turnbuckle into electrical signals and transmit them to the e-bike controller. The turnbuckle position information tells the controller the speed and direction of travel of the e-bike, and the controller adjusts the motor accordingly, thereby realizing the speed and direction control of the e-bike.

The sensing line usually includes Hall elements, resistors, capacitors and other components, and through the cooperation of these components, the information of the position of the turnbuckle is converted into an electrical signal. In this way, through the turnbuckle sensing line, the e-bike controller can accurately grasp the driving state of the e-bike and realize more precise control.

Plastic housings can serve to protect internal components (e.g., sensing circuits, resistors, etc.) from the external environment and extend their service life.

• Ebike handlebar speed regulation work process

The ebike handlebar is a component that is used to control the speed of the bike. Its speed regulation process is actually quite simple and mainly involves adjusting the resistance value of the potentiometer used in the controller of the ebike, thus changing the output voltage of the controller and causing the speed of the двоколісний електричний велосипед to change.

When we turn on the power of the electric bike, the positive and negative power supply pins of the Hall element will get a 5V working power supplied by the controller, when turning the turnbuckle, the position of the magnet fixed inside will change, the magnetic field will change from weak to strong, and the Hall output terminal will output a changing voltage of 1 to 4.2V.

The operational amplifier provided to the controller to compare with the set value, according to the comparison results output a voltage value to drive the field effect tube, the field effect tube connected to the power supply by, the field effect tube conduction output voltage to drive the electric car motor rotation.

When the ebike handlebar is turned, the potentiometer on the handlebar generates a different resistance value, and thus the controller controls the speed of the motor of the ebike by providing the appropriate voltage according to the resistance value generated by the handlebar. If the angle of rotation is too large, the change in resistance value becomes larger, which results in a faster change in the speed of the ebike.

Release the handle, under the action of the reset spring, the magnet assembly reset, the magnetic field force becomes weaker, the Hall output voltage drops below 1v, the field effect tube cutoff no output voltage, the motor stops rotating, which is the speed control handlebar to control the start and stop of the electric car speed regulation principle.

Common ebike handlebar problems and how to fix them

• Failure of the ebike handlebar

Malfunctioning ebike handlebar can be caused by a number of reasons, here are some common possible causes and solutions.

1. Insufficient battery power: When the battery power of the e-bike is too low, the speed control knob may malfunction or not work properly. Make sure the battery has enough power and is not damaged or aged.
2. Failure of the connection between the ebike handlebar and the controller: Check for a loose or damaged connection between the handlebar and the controller, if there is one it may cause the speed control turnbuckle to malfunction. Clean and reconnect the wiring between the handlebar and controller to ensure a solid connection.
3. Damaged potentiometer in ebike handlebar: If the potentiometer is damaged, the ebike handlebar will not work correctly. In this case, the potentiometer will need to be replaced and the speed knob reinstalled.
4. Controller failure: When the controller fails, the ebike handlebar will also fail. First check to see if the controller is working properly, if not, you will need to replace the controller and reinstall the ebike speed handlebar.

• Ebike handlebar does not return

If your ebike handlebar doesn’t return, it may be due to the following reasons:

1. Poor wire connection: Please check the wire connection of the speed control ebike handlebar for loose or poor contact. If this is the problem, please reconnect the wires or replace the wire plug.
2. Ebike handlebar jammed: There may be dust or dirt inside the ebike handlebar, or the metal parts of the ebike handlebar may be deformed or rusted, etc. causing the turnbuckle to jam. In this case, you need to open the handlebar to clean or repair the inside of the handlebar.
3. Motor failure: If the ebike handlebar is stuck in a certain position and does not move, it may be caused by a faulty motor. You need to check if the motor is steering properly, if the motor load is too high, and if there is any damage to the motor.
4. Controller failure: Failure of the electric bike controller may also cause the speed control rotary handle does not return to the position. The controller needs to be checked for faults and replaced or faulty electric bike parts if necessary.

• Ebike handlebar is not sensitive

If your ebike handlebar is not responsive, check the following first:

1. Whether the wire connection is correct: Check if the wires are connected tightly, especially if the battery connection wire of the e-bike is good. If the wires are faulty, they should be reconnected or replaced.
2. Whether the governor knob is normal: The knob on the ebike handlebar’s is not damaged and should be checked to see if the knob is stuck. If a problem is found, the governor knob should be opened to remove dust and dirt and replace the defective part.
3. Adequacy of motor controller power: If the controller power is too low or too high, it will affect the response speed of the ebike handlebar. If this problem is found, the controller should be replaced and its power should be changed.
4. Incorrect adjustment of the potentiometer percentage: If the adjustment range process is too spread out, the controller loses the effective adjustment interval, which can also lead to the speed control rotary handle is not sensitive. In this case, the span of the adjustment percentage should be changed to ensure a smooth adjustment path.

If the problem is still not solved after you have checked the above aspects, then it is recommended that you push your electric scooter to the repair department and get it checked and repaired by a professional.

What other faults are associated with ebike handlebar

In addition to the previously mentioned ebike handlebar non-return and insensitivity issues, there are a number of other malfunctions that can be related to turnbuckle tuning.

• The ebike is slow or does not run

This problem may be related to a problem with the ebike handlebar. Possible causes include faulty ebike controller, faulty motor, battery and other problems. This problem may also be related to problems with the ebike handlebar.

Possible causes include inaccessible circuits, poor wire contact, internal damage to the speed control handlebar, faulty controllers, and more.

• No power output

If the battery is fully charged but there is no power output from the electric bike, it may be caused by problems such as damaged speed control turnbuckles, faulty controllers, damaged motors, and so on. It is necessary to check and repair the related parts.

Підсумок

The ebike handlebar achieves the purpose of speed regulation by adjusting the relevant parameters in the controller. At the same time, it is also prone to many kinds of faults. When troubleshooting the ebike, the speed control handlebar is a very important part, which is prone to problems and even prone to cause the failure of other parts.

Therefore, when the relevant problems occur, you need to check and repair the speed control knob in time to ensure the normal use of the e-bike. If still want to know more ebike related articles you can click to check e bike sensor, e-bike battery replacement, dead ebike battery.