What is the lobby on the electric car?

Question 1: What does the hall of electric vehicles do and what is its function? During the rotation of DC motor, the current in the winding should constantly change direction to make the rotor rotate in one direction. Among them, the brush motor realizes phase commutation through the mechanical contact between the brush and the commutator; Brushless motor detects the signal of real-time running position of winding through Hall (OH3 144, OH4 1, OH44E, etc.). ), and then the collected signal is processed by microprocessor or special chip to control the corresponding driving circuit to control the motor winding in real time. Because the commutation of brushless motor is carried out through sensors and related circuits, this kind of motor has no mechanical contact and wear between brush and inverter, and it does not need to replace vulnerable devices such as brush frequently, which effectively improves the service life of the motor and reduces the maintenance cost.

Question 2: What does the electric car Hall do to detect the position of the motor magnet?

Question 3: What are the symptoms of electric car hall failure? There are three places where the electric car has a hall (change it directly if it is broken, and Hall can't fix it! ), Hall has three wires respectively. Please use a multimeter to test whether the other two wires except the positive power supply (usually the red line) have voltage output (if the switch is good, the two values are close to 0V or 5 V; Linear output 0.8-4.2V continuous value), no output or something else is broken. Of course, braking and release are needed during the test, and both the handle and the motor should be rotated manually.

1, brake handle, if it is an electronic brake handle, the motor will not work if it is broken. There are two kinds of electronic brake handles, one is Hall type, such as OH44E, which is a switch signal, and the other is a microswitch. That is, the acceleration motor does not turn when braking at ordinary times.

2. Rotating handle: linear Hall: OH49E is used. If the handlebar is broken, it is generally not accelerated, or it is accelerated directly (overspeed).

3. The motor hall is broken (***3), and the motor cannot rotate or has abnormal sound (clicking sound). Non-professionals are advised not to open it, especially not to pry it open, because it will damage the waterproof of the motor. If it must be turned on, it must be turned on (because the motor has a strong magnetic force and needs to be turned on once by inertia). ) Bicycle repairers are usually open, so it's best to find them.

When you open the coil, you will see three halls, which are generally switch halls, such as: OH44E, OH4 1, or OH4 1F, etc. It's better to change all three.

I hope I can help you!

Question 4: What is the function of Hall wire in electric vehicle motor? Hello! First of all, let's get to know Hall: a sensor for detecting magnetic field (you can find Hall information of OH44E motor).

The function of motor Hall: change the direction of current at a certain position-make the coil produce opposite magnetic poles! Simply put, it is to change items! Use the stator (the magnetic field is constant) and the rotor (the coil current is different (when the coil reaches a certain position, Hall gives a signal to change the current direction) and the magnetic field direction is different) to generate electricity!

Therefore, if the hall is broken or there is no hall, you can't change the item, you can't generate force, you just don't go!

Of course, there is no Hall controller now, so set a value for this conversion directly. There is no hall, which is a little electricity-consuming, hehe, I hope I can help you!

Question 5: What is the hall line on the electric car used for? Control line, direction speed.

Question 6: What is the lobby of the electric car? Hall used in electric vehicles (often used in automation equipment) is a sensor.